CN102143569A - Communication control method, communication control device and communication control system - Google Patents
Communication control method, communication control device and communication control system Download PDFInfo
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- CN102143569A CN102143569A CN2010101073590A CN201010107359A CN102143569A CN 102143569 A CN102143569 A CN 102143569A CN 2010101073590 A CN2010101073590 A CN 2010101073590A CN 201010107359 A CN201010107359 A CN 201010107359A CN 102143569 A CN102143569 A CN 102143569A
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Abstract
The embodiment of the invention provides a communication control method, a communication control device and a communication control system. The communication control method comprises the following steps: the signal characteristic parameter value of an uplink signal is determined according to the received uplink signal; whether the signal characteristic parameter value exceeds the range of the preset signal characteristic parameter value is determined; the range that the signal characteristic parameter value exceeds the preset signal characteristic parameter value is determined, and the transmission power of a downlink channel where a terminal corresponding to the uplink signal is located is adjusted, so that the signal characteristic parameter value of the uplink signal sent by the terminal is within the range of the preset signal characteristic parameter value, and therefore the possibility of terminal call drop is reduced.
Description
Technical field
The present invention relates to communication technical field, relate in particular to control of communication method, Apparatus and system.
Background technology
In the Downlink Power Control Schemes that communicates between base station and terminal, the base station power control unit is determined one of at least total emission power according to these two parameters of value of the quality of reception in the measurement report of terminal to report and incoming level.For example, at speech business VAMOS (the Voice services over Adaptive Multi-user channels on One Slot that uses the multiplexing same physical channel of adaptive multiuser, the speech business of the multiplexing same physical channel of adaptive multiuser) under the scene of Channel Technology, the base station also needs to determine the multiplexing power ratio on two subchannels of same physical channel of downstream signal of two terminals.
In the network, terminal is easy to occur the phenomenon of call drop, influences communication quality at present.
Summary of the invention
The embodiment of the invention provides control of communication method, Apparatus and system, reaches the possibility that reduces terminal generation call drop.
An aspect of of the present present invention discloses a kind of control of communication method, and described method comprises: according to the upward signal that receives, determine the value of the signal characteristic parameter of corresponding described upward signal; Judge whether the value of described signal characteristic parameter exceeds the scope of the signal characteristic parameter value that sets in advance; The value of corresponding definite described signal characteristic parameter exceeds the scope of the described signal characteristic parameter value that sets in advance, adjust the transmitting power of the terminal place down channel of described upward signal correspondence, so that the value of the signal characteristic parameter of the upward signal that described terminal sends is positioned at the scope of the described signal characteristic parameter value that sets in advance.
Another aspect of the present invention discloses a kind of base station, comprising: signal characteristic parameter determining unit is used for determining the value of the signal characteristic parameter of corresponding described upward signal according to the upward signal that receives; Signal characteristic parameter judging unit is used to judge whether the value of described signal characteristic parameter exceeds the scope of the signal characteristic parameter value that sets in advance; Power control unit, the value that is used for corresponding definite described signal characteristic parameter exceeds the scope of the described signal characteristic parameter value that sets in advance, adjust the transmitting power of the terminal place down channel of described upward signal correspondence, so that the value of the signal characteristic parameter of the upward signal that described terminal sends is positioned at the scope of the described signal characteristic parameter value that sets in advance.
Another aspect of the present invention discloses a kind of communication system, comprising: the base station, described base station is used to carry out the method for above-mentioned control descending power.
The base station is by the comparison of value with the scope of the signal characteristic parameter value that sets in advance of the signal characteristic parameter of the upward signal of definite terminal transmission, it is bigger to judge whether that the possibility of call drop appears in terminal, and then the transmitting power of the down channel at adjustment terminal place, can improve the carrier/interface ratio of this terminal, realize the value of the signal characteristic parameter of adjustment upward signal, reduce the possibility of terminal generation call drop.
Another aspect of the present invention discloses a kind of control of communication method, and described method comprises: determine whether the downlink signal transmitting power that sends to terminal is positioned at the power region that sets in advance; Corresponding definite described transmitting power is positioned at the zone of the described power that sets in advance, and adjusts the transmitting power of described terminal place down channel, is not positioned at the described power region that sets in advance so that send to the downlink signal transmitting power of described terminal.
Another aspect of the present invention discloses a kind of base station, comprising: power comparison module, and whether the downlink signal transmitting power of determining to send to the terminal of described upward signal correspondence is positioned at the power region that sets in advance; Power control unit is used for corresponding described power comparison module and determines that described transmitting power is positioned at the zone of the described power that sets in advance, and adjusts the transmitting power of described terminal place down channel.
Another aspect of the present invention discloses a kind of communication system, comprising: the base station, described base station is used to carry out the method for above-mentioned control descending power.
By method, the Apparatus and system of above-mentioned described control descending power, can reach the carrier/interface ratio that improves this terminal, reduce the possibility of terminal generation call drop.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 has shown a kind of schematic diagram of system by way of example.
Fig. 2 has shown a kind of method schematic diagram of controlling descending power among the embodiment by way of example.
Fig. 3 has shown the cell schematics of a kind of base station among the embodiment by way of example.
Fig. 4 has shown the cell schematics of a kind of base station among another embodiment by way of example.
Fig. 5 has shown a kind of method schematic diagram of controlling descending power among another embodiment by way of example.
Fig. 6 has shown a kind of method schematic diagram of controlling descending power among another embodiment by way of example.
Fig. 7 has shown the cell schematics of a kind of base station among another embodiment by way of example.
Embodiment
Fig. 1 has shown a kind of system 100 by way of example.Can comprise base station 102 and terminal 104 in this system 100.
For example, system 100 can be positioned in GERAN (GSM EDGE Radio Access Network, the GSM EDGE wireless access network) network.
For example, base station 102 can be for being arranged in the base station of GERAN network, and base station 102 can communicate with one or more terminal 104.
The data that send to base station 102 from terminal 104 can be called upward signal, and 102 data that send to terminal 104 can be called downstream signal from the base station.
Communicating by letter and to communicate by single subscriber channel pattern between base station 102 and the terminal 104.Under single subscriber channel pattern, base station 102 sends to this terminal 104 with the data of a terminal 104 on a physical channel.
Communicating by letter between base station 102 and the terminal 104 also can communicate by the VAMOS channelling mode.Under the VAMOS channelling mode, the mode that two terminals multiplexed 104 are used the GMSK modulation sends at same physical channel upward signal is multiplexing, SIC (Successive InterferenceCancellation is used in base station 102, the series connection interference eliminated) mode or JD (Joint Detection, joint-detection) mode is come the multiplexed signals of demodulation from two-way terminal 104, and by different training sequence number (TrainingSequence Code TSC) distinguishes the data of two terminals 104.The downstream signal that base station 102 sends to this two-way terminal 104 can adopt the data that will send to two terminals 104 by AQPSK (Adaptive Quadrature Phase Shift Keying, adaptive quadrature quarternary phase-shift keying (QPSK)) is modulated on the physical channel, sends to terminal 104 then.Interference cancellation techniques or other joint demodulation technique of terminal 104 by pairing good cross correlation and enhancing between user's training sequence solves base station 102 and sends to the downstream signal of oneself.
For reduce or even eliminate under single subscriber channel pattern or VAMOS channelling mode, the call drop phenomenon that terminal 104 exists, especially under the VAMOS channelling mode, whether embodiments of the invention detect some signal characteristic parameters with base station 102 in the upward signal of call drop terminal 104 value has the control of carrying out descending power unusually.For example, when the signal characteristic parameter was the frequency departure of upward signal, whether the absolute value that the frequency departure of upward signal is detected in the base station exceeded predetermined range; When the signal characteristic parameter was the error rate of upward signal, whether the absolute value that the error rate of upward signal is detected in the base station exceeded predetermined range; When the signal characteristic parameter is that lock in time of upward signal is during deviation, whether deviation lock in time that upward signal is detected in the base station exceeds predetermined range, for example lock in time deviation value less than zero, or the like, the base station can be detected multiple different signal characteristic parameter and control descending power according to testing result.
Accordingly, one embodiment of the present of invention provide a kind of method of control of communication by way of example.In conjunction with Fig. 1, this method comprises following part.
202, the value of the signal characteristic parameter of corresponding upward signal is determined according to the upward signal that receives in the base station.
This upward signal is sent by terminal.For example, the signal characteristic parameter of upward signal can for the frequency departure of upward signal, the error rate, Block Error Rate, signal level and lock in time deviation any one.The value of the signal characteristic parameter of upward signal is detected in base station 102.The signal characteristic parameter role of upward signal can for: base station 102 can reduce even eliminate terminal generation call drop according to the value of this signal characteristic parameter may.
204, the base station judges whether the value of signal characteristic parameter exceeds the scope of the signal characteristic parameter value that sets in advance.
For example, base station 102 can compare the scope of the value of this signal characteristic parameter and a signal characteristic parameter value that sets in advance after the value of having determined this signal characteristic parameter, determines whether the value of the signal characteristic parameter of upward signal occurs unusually.For example, when the value of this signal characteristic parameter exceeded the scope of the described signal characteristic parameter value that sets in advance, base station 102 occurred unusual in the value of the signal characteristic parameter of determining upward signal; The value of this signal characteristic parameter is in the scope of the described signal characteristic parameter value that sets in advance the time, and base station 102 does not occur in the value of the signal characteristic parameter of determining upward signal unusually.
For example, base station 102 detect frequency departures, the error rate, Block Error Rate, signal level or lock in time deviation whether exceed predetermined range, whether call drop of terminal is judged according to testing result in base station 102, or the probability of judgement terminal call drop is in certain value range.For example, base station 102 detect frequency departures, the error rate, Block Error Rate, signal level or lock in time deviation exceed predetermined range, base station 102 judges that call drop appears in terminals; Base station 102 detect frequency departures, the error rate, Block Error Rate, signal level or lock in time deviation less than predetermined range, the terminal normal talkings are judged in base station 102.
Because the scope of this signal characteristic parameter value that sets in advance representative: when the value of the signal characteristic parameter of the upward signal of terminal is positioned at the scope of this signal characteristic parameter value that sets in advance, the possibility of this terminal generation call drop is lower.So base station 102 can judge whether the possibility of terminal generation call drop is bigger.The scope of the signal characteristic parameter value that this sets in advance can be determined by the test experiments that terminal is carried out.
206, the value of corresponding definite signal characteristic parameter exceeds the scope of the signal characteristic parameter value that sets in advance, the transmitting power of the terminal place down channel of this upward signal correspondence is adjusted in the base station, so that the value of the signal characteristic parameter of the upward signal that terminal sends is positioned at the scope of the signal characteristic parameter value that sets in advance.
For example, when the value of determining the signal characteristic parameter exceeds the scope of the signal characteristic parameter value that sets in advance, base station 102 can determine that the possibility of terminal generation call drop is bigger.For example, by adjusting the transmitting power of terminal place down channel, can improve the carrier interference ratio C/I R of this terminal, and then can make the value of signal characteristic parameter of the upward signal of terminal be positioned at the scope of the signal characteristic parameter value that sets in advance, thereby reach the possibility that reduces terminal generation call drop.For example, for the terminal that is in single subscriber channel pattern, can improve the carrier/interface ratio of this terminal by the transmitting power (also being total transmitting power) that improves this terminal; For the terminal that is in the VAMOS channelling mode, the transmitting power of the gross power of down channel that can be by adjusting terminal or a certain subchannels of this down channel improves the carrier/interface ratio of this terminal.
As shown in Figure 3, shown a kind of base station 210 in one embodiment of the present of invention by way of example, the repertoire of base station in as shown in Figure 2 the control of communication method can be finished in this base station 210.This base station 210 can adopt software and/or hardware mode to realize the repertoire of base station in the method for control descending power as shown in Figure 2, for example, base station 300 can comprise that one or more processor realizes the repertoire of base station in the method for control descending power as shown in Figure 2.For example, base station 210 can comprise signal characteristic parameter determining unit 212, signal characteristic parameter judging unit 214 and power control unit 216.
Signal characteristic parameter determining unit 212 is used for determining the value of the signal characteristic parameter of corresponding described upward signal according to the upward signal that receives.
Signal characteristic parameter judging unit 214 is used to judge whether the value of described signal characteristic parameter exceeds the scope of the signal characteristic parameter value that sets in advance.
In another embodiment of the present invention, the transmitting power of the down channel at the terminal place of power control unit 216 adjustment upward signal correspondences can also comprise: power control unit 216 is adjusted described transmitting power according to total transmitting power P and the power ratio SCPIR on the channel at the downstream signal place that sends to terminal.
The concrete function of above-mentioned described base station and unit wherein can not repeat them here with reference to the related content of figure 2 embodiment.
As shown in Figure 4, in another embodiment of the present invention, signal characteristic parameter determining unit 212 can be frequency departure determining unit 320, is used for determining frequency departure according to the upward signal that receives.Signal characteristic parameter judging unit 214 can be frequency departure comparing unit 330, and whether the absolute value that is used to judge the frequency departure that described frequency departure determining unit is determined is greater than the frequency departure threshold value.Power control unit 216 can be power control unit 340, be used for corresponding described frequency departure comparing unit and judge that the absolute value of described frequency departure is greater than described frequency departure threshold value, adjust the transmitting power of the terminal place down channel of described upward signal correspondence, so that the frequency departure of the upward signal that described terminal sends is less than or equal to described frequency departure threshold value.The transmitting power of the terminal place down channel of power control unit 340 whole described upward signal correspondences can reach the carrier/interface ratio that improves this terminal.
An alternative embodiment of the invention provides a kind of communication system.This communication system has comprised at least one base station and one or more terminal of carrying out data communication with this base station.Wherein, the specific implementation details of this base station, the description referring among Fig. 2 and the embodiment shown in Figure 3 no longer is repeated in this description at this.
Terminal generation call drop can be determined according to the scope that the value of judging the signal characteristic parameter exceeds the signal characteristic parameter value that sets in advance in the base station, determines that perhaps the probability of terminal generation call drop is in certain scope.The base station is by the transmitting power of the down channel of the terminal of adjustment upward signal correspondence, can reach the carrier/interface ratio that improves terminal, and and then reach the value of the signal characteristic parameter of adjusting the upward signal that terminal sends, thereby the value that can reach the signal characteristic parameter of the upward signal that makes the terminal transmission is positioned at the scope of the signal characteristic parameter value that sets in advance, and has reduced the possibility of terminal generation call drop.
For the ease of understanding the method for described control descending power, adopting the signal characteristic parameter with upward signal in an alternative embodiment of the invention is that frequency departure is that example specifically illustrates.As shown in Figure 5, this method comprises following part.
220, the frequency departure of this upward signal is determined according to the upward signal that receives in the base station.
The frequency departure of upward signal is a kind of of upward signal characteristic parameter.The base station can determine whether terminal has the possibility that call drop takes place according to this frequency departure.The base station can determine by the upward signal that receives the frequency departure of this upward signal according to present existing frequency offset estimating algorithm.For example, present existing frequency offset estimating algorithm has the phase difference that utilizes between different receiving symbols to come estimating frequency offset.
230, corresponding definite frequency departure, the base station judges that whether the absolute value of this frequency departure is greater than the frequency departure threshold value.
For example, at the absolute value of the frequency departure of the upward signal of terminal during greater than a frequency preset deviation threshold, the probability that call drop appears in terminal is at certain more than the value.And the upstream frequency deviation is generally greater than 500Hz.Can claim that in embodiments of the present invention this frequency preset deviation threshold is the frequency departure threshold value.For example, the frequency departure threshold value can be 500Hz.
Need to prove, one of ordinary skill in the art will appreciate that, when the signal characteristic parameter of upward signal was other parameter, it is bigger that the base station judges that according to the signal characteristic parameter of this upward signal the probability of call drop appears in terminal, and its principle and 230 described contents are similar.For example, lock in time, the threshold value of side-play amount can be zero, when the base station detect downstream signal lock in time side-play amount value less than the threshold value of side-play amount lock in time, can think occur unusual.
240, the absolute value of corresponding determination frequency deviation is greater than the frequency departure threshold value, and the transmitting power of the terminal place down channel of this upward signal correspondence is adjusted in the base station, so that the frequency departure of the upward signal that terminal sends is less than or equal to the frequency departure threshold value.
For example, the base station greater than the frequency departure threshold value, can judge that call drop can appear in terminal according to the absolute value of frequency departure.Adjust the transmitting power of terminal place down channel, can make the absolute value of frequency departure of the upward signal of terminal be less than or equal to the frequency departure threshold value, reaching the carrier/interface ratio that improves terminal, thereby reduce the possibility of terminal generation call drop.
For example, when terminal works during in single subscriber channel pattern, the absolute value of frequency departure of judging terminal when the base station is during greater than the frequency departure threshold value, when launch at next downstream signal the base station, can improve the downlink signal transmitting power that total emission power improves terminal, with this carrier/interface ratio that improves terminal, reach the possibility that reduces terminal generation call drop.
For example, if terminal is the terminal that is in the VAMOS channelling mode, if multiplexing two terminals 104 on same physical channel are called I road terminal and Q road terminal, two corresponding subchannels are called I subchannels and Q subchannels.Suppose that it is P that base station 102 sends downlink signal transmitting power for I road terminal
I, promptly the transmitting power of I subchannels is P
I, sending downlink signal transmitting power for Q road terminal is P
Q, promptly the transmitting power of Q subchannels is P
QIt is P (being also referred to as total transmitting power of this channel) that total transmitting power of I road terminal and Q road terminal is given in base station 102, and the power ratio SCPIR of I road terminal and Q road terminal (being also referred to as the ratio of I subchannels and Q subchannels power), so, can adjust the downstream signal place channel transmitting power of terminal according to following formula.
∵
∴
If supposing terminal is the terminal on I road, so, the terminal downlink signal transmitting power is P
IFor simplicity, do not considering under the situation of path loss and other loss that the carrier/interface ratio of terminal can represent with formula (3), wherein, I
ExtThe power of expression external disturbance.
From above-mentioned formula as can be seen, the transmitting power of this terminal place down channel can be adjusted according to total transmitting power P on the channel at the downstream signal place that sends to terminal and power ratio SCPIR in base station 102, improves the carrier/interface ratio of this terminal with this.For example, under the situation that always transmitting power P is constant, increase SCPIR, the transmitting power P of terminal so
IIncrease P
QReduce, the carrier/interface ratio of terminal improves; Transmitting power P in terminal
IUnder the constant situation, reduce P
Q, also can improve the carrier/interface ratio of terminal.So, adjust total transmitting power P of this down channel or be the transmitting power P of the subchannel of adjusting this down channel
IPerhaps P
Q, can improve the carrier/interface ratio of this terminal.
In another embodiment of the present invention, base station 102 is when the transmitting power of the terminal place down channel of adjusting this upward signal correspondence, and base station 102 can adopt the time span of first power control period to come transmitting power is carried out power control.Adopt the time span of first power control period to come method that transmitting power is carried out the method for power control and base station 102 at present carrying out power control according to the time span in the cycle of terminal to report measurement report similar, different is that the time span of first power control period is less than the time span in the cycle of present terminal to report measurement report.For example, the time span of first power control period can be the at present part or the shorter time span of the time span in the cycle of terminal to report measurement report.Adopt this power control period can allow base station 102 at the absolute value of judging this frequency departure during greater than the frequency departure threshold value, base station 102 can be carried out the transmitting power adjustment faster, improves the carrier/interface ratio of terminal, reduces the possibility of terminal generation call drop.
A kind of communication system is provided in one embodiment of the present of invention.This communication system has comprised at least one base station and one or more terminal of carrying out data communication with this base station.Wherein, the specific implementation details of this base station, the description referring among the embodiment shown in Figure 5 no longer is repeated in this description at this.
In the present embodiment, the upward signal that base station 102 sends according to terminal is determined the frequency departure of this upward signal, and during greater than the frequency departure threshold value, base station 102 can determine that the possibility of call drop can appear in this terminal at the absolute value of judging this frequency departure.For this reason, the transmitting power of base station 102 down channel by adjusting terminal can realize making the frequency departure of the upward signal that terminal sends to be less than or equal to described frequency departure threshold value, realizes reducing the possibility of terminal generation call drop.
In the method according to control descending power embodiment illustrated in fig. 2, when the signal characteristic parameter of upward signal is other parameter, the principle of its realization and the above-mentioned principle of adjusting according to frequency departure are similar, therefore, no longer similarly give an example in the embodiment of the invention and be repeated in this description.
One embodiment of the present of invention provide the method for another control descending power by way of example.As shown in Figure 6, this method comprises following part.
410, the base station is according to the upward signal that the terminal that receives sends, and whether the downlink signal transmitting power of determining to send to the terminal of this upward signal correspondence is positioned at the power region that sets in advance.
When the 102 downlink signal transmitting power P1 that send to terminal were positioned at a specific power region in the base station, the phenomenon of call drop took place in terminal easily.This specific power region also can be called the power region that sets in advance.The scope of the power region that this sets in advance is represented: when the downlink signal transmitting power of terminal was positioned at the power region that sets in advance, the possibility of terminal generation call drop was bigger.
The scope of the power region that sets in advance can be determined by test experiments.For example, if terminal is the terminal that is in the VAMOS channelling mode,, suppose that it is P that base station 102 sends downlink signal transmitting power for I road terminal if multiplexing two terminals 104 on same physical channel are called I road terminal and Q road terminal
I, sending downlink signal transmitting power for Q road terminal is P
Q, it is P that total transmitting power of I road terminal and Q road terminal is given in base station 102, and the power ratio SCPIR of I road terminal and Q road terminal, so, the downlink signal transmitting power of terminal can be represented with above-mentioned formula (2).
According to the formula among the embodiment shown in Figure 4, in test experiments, adopted total transmitting power P has been fixed terminal, by the downlink signal transmitting power that the value that different SCPIR is set is come the test terminal, test result is as shown in table 3.
Table 3:
| ?SCPIR | The terminal call situation |
| -7dB | Call drop |
| -4dB | Call drop |
| -2dB | Call drop |
| 0dB | Conversation is normal |
| 2dB | Conversation is normal |
| 4dB | Conversation is normal |
420, corresponding definite downlink signal transmitting power is positioned at the power region that sets in advance, and the transmitting power of this terminal place down channel is adjusted in the base station, so that the downlink signal transmitting power of this terminal is not positioned at the power region that sets in advance.
When the downlink signal transmitting power that terminal is determined to send in base station 102 was positioned at this power region that sets in advance, base station 102 determined that the possibility of terminal generation call drops is bigger.At this moment, base station 102 is by the total transmitting power of adjusting this terminal place down channel or the transmitting power of adjusting the subchannel of terminal place down channel, the downlink signal transmitting power of terminal can be adjusted to and not be positioned at the power region that this sets in advance, realize improving the carrier/interface ratio of terminal, thereby reach the possibility that reduces terminal generation call drop.And adjust total transmitting power P of this down channel or be the transmitting power P of the subchannel of adjusting this down channel
IPerhaps P
QCan improve the carrier/interface ratio of this terminal.Concrete principle can be used for reference above-mentioned explanation in embodiment illustrated in fig. 2.
For example, if terminal is the terminal that is in the VAMOS channelling mode, the transmitting power of terminal place down channel can be adjusted according to total transmitting power P on the channel at the downstream signal place that sends to terminal and power ratio SCPIR in base station 102 so, realizes improving the carrier/interface ratio of terminal.This concrete principle can be used for reference above-mentioned explanation in embodiment illustrated in fig. 2, no longer is repeated in this description at this.
In another embodiment of the present invention, base station 102 is when adjusting the transmitting power of terminal place down channel, and base station 102 can adopt the time span of first power control period to come the transmitting power of terminal place down channel is carried out power control.The time span of first power control period is less than the time span in the cycle of present terminal to report measurement report.For example, the time span of first power control period can be the at present part or the shorter time span of the time span in the cycle of terminal to report measurement report.Adopt this power control period can allow base station 102 be positioned at the power region that sets in advance judging the downlink signal transmitting power that sends to terminal, base station 102 can be carried out the transmitting power adjustment of terminal place down channel faster, improve the carrier/interface ratio of terminal faster, thereby further reduce the possibility of terminal generation call drop.
As shown in Figure 7, shown a kind of base station 500 in one embodiment of the present of invention by way of example, the repertoire of base station in the method for control descending power as shown in Figure 2 can be finished in this base station 500.This base station 500 can adopt software and/or hardware mode to realize the repertoire of base station in the method for control descending power as shown in Figure 4, for example, base station 500 can comprise that one or more processor realizes the repertoire of base station in the method for control descending power as shown in Figure 4.Base station 500 can comprise power comparison module 510 and power control unit 520.
In another embodiment of the present invention, power control unit 520 transmitting power of adjusting this terminal place down channel according to the total transmitting power P on the channel at the downstream signal place that sends to terminal and power ratio SCPIR.
Another communication system is provided in one embodiment of the present of invention.This communication system has comprised at least one base station and one or more terminal of carrying out data communication with this base station.Wherein, the specific implementation details of this base station and terminal, the description referring among Fig. 6 and the embodiment shown in Figure 7 no longer is repeated in this description at this.
In the present embodiment, base station 102 can learn according to the judgement that whether downlink signal transmitting power that sends to terminal is positioned at the power region that sets in advance whether terminal call drop may take place.Judge terminal when base station 102 call drop may take place, the transmitting power that this terminal place down channel can be adjusted in base station 102 makes the downlink signal transmitting power of this terminal not be positioned at the power region that sets in advance, reach the carrier/interface ratio that improves terminal, thereby realize reducing the possibility of terminal call drop.
By the description of above embodiment, the those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform, can certainly pass through hardware, but the former is better execution mode under a lot of situation.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in the storage medium, comprise that some instructions are with so that a computer equipment (can be a personal computer, server, the perhaps network equipment etc.) carry out all or part of step of the described method of each embodiment of the present invention.And aforesaid storage medium comprises: various media that can be program code stored such as USB flash disk, portable hard drive, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random AccessMemory), magnetic disc or CD.
In several embodiment that the application provided, should be understood that, disclosed system, apparatus and method can realize by other mode.For example, device embodiment described above only is schematic, for example, the division of described unit, only be that a kind of logic function is divided, during actual the realization other dividing mode can be arranged, for example a plurality of unit or assembly can in conjunction with or can be integrated into another system, or some features can ignore, or do not carry out.Another point, the shown or coupling each other discussed or directly to be coupled or to communicate to connect can be by some interfaces, the indirect coupling of device or unit or communicate to connect can be electrically, machinery or other form.
Described unit as separating component explanation can or can not be physically to separate also, and the parts that show as the unit can be or can not be physical locations also, promptly can be positioned at a place, perhaps also can be distributed on a plurality of network element.Can select wherein some or all of unit to realize the purpose of present embodiment scheme according to the actual needs.
In addition, each functional unit in each embodiment of the present invention can be integrated in the processing unit, also can be that the independent physics in each unit exists, and also can be integrated in the unit two or more unit.Above-mentioned integrated unit both can adopt the form of hardware to realize, also can adopt the form of SFU software functional unit to realize.If described integrated unit is realized with the form of SFU software functional unit and during as independently production marketing or use, also can be stored in the computer read/write memory medium.
The above; only be the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion by described protection range with claim.
Claims (15)
1. control of communication method, described method comprises:
According to the upward signal that receives, determine the value of the signal characteristic parameter of corresponding described upward signal;
Judge whether the value of described signal characteristic parameter exceeds the scope of the signal characteristic parameter value that sets in advance;
The value of corresponding definite described signal characteristic parameter exceeds the scope of the described signal characteristic parameter value that sets in advance, adjust the transmitting power of the terminal place down channel of described upward signal correspondence, so that the value of the signal characteristic parameter of the upward signal that described terminal sends is positioned at the scope of the described signal characteristic parameter value that sets in advance.
2. method according to claim 1, wherein, the signal characteristic parameter of described upward signal be frequency departure, the error rate, Block Error Rate, signal level or lock in time deviation.
3. method according to claim 1 and 2, wherein, the transmitting power of the terminal place down channel of the described upward signal correspondence of described adjustment comprises:
According to the total transmitting power P and the power ratio SCPIR of described down channel, adjust the transmitting power of described down channel.
4. method according to claim 1, wherein, the transmitting power of the terminal place down channel of the described upward signal correspondence of described adjustment specifically comprises:
Adjust the transmitting power of the terminal place down channel of described upward signal correspondence, to improve the carrier/interface ratio of described terminal.
5. method according to claim 1, wherein, the transmitting power of described down channel is the transmitting power of the subchannel of total transmitting power of described down channel or described down channel.
6. base station comprises:
Signal characteristic parameter determining unit is used for determining the value of the signal characteristic parameter of corresponding described upward signal according to the upward signal that receives;
Signal characteristic parameter judging unit is used to judge whether the value of described signal characteristic parameter exceeds the scope of the signal characteristic parameter value that sets in advance;
Power control unit, the value that is used for corresponding definite described signal characteristic parameter exceeds the scope of the described signal characteristic parameter value that sets in advance, adjust the transmitting power of the terminal place down channel of described upward signal correspondence, so that the value of the signal characteristic parameter of the upward signal that described terminal sends is positioned at the scope of the described signal characteristic parameter value that sets in advance.
7. base station according to claim 6, wherein, the transmitting power of the terminal place down channel of the described upward signal correspondence of described adjustment comprises:
According to the total transmitting power P and the power ratio SCPIR of described down channel, adjust the transmitting power of described down channel.
8. communication system comprises: base station, described base station are used for carrying out as each described method of claim 1 to 5.
9. control of communication method, described method comprises:
Determine whether the downlink signal transmitting power that sends to terminal is positioned at the power region that sets in advance;
Corresponding definite described transmitting power is positioned at the zone of the described power that sets in advance, and adjusts the transmitting power of described terminal place down channel, is not positioned at the described power region that sets in advance so that send to the downlink signal transmitting power of described terminal.
10. method according to claim 9, wherein, the transmitting power of the described terminal of described adjustment place down channel comprises:
According to the total transmitting power P and the power ratio SCPIR of described down channel, adjust the transmitting power of described down channel.
11. method according to claim 9, wherein, the transmitting power of the described terminal of described adjustment place down channel specifically comprises:
Adjust the transmitting power of described terminal place down channel, to improve the carrier/interface ratio of described terminal.
12. method according to claim 9, wherein, the transmitting power of described down channel is the transmitting power of the subchannel of total transmitting power of described down channel or described down channel.
13. a base station comprises:
Power comparison module, whether the downlink signal transmitting power of determining to send to the terminal of described upward signal correspondence is positioned at the power region that sets in advance;
Power control unit, be used for corresponding described power comparison module and determine that described transmitting power is positioned at the zone of the described power that sets in advance, adjust the transmitting power of described terminal place down channel, be not positioned at the described power region that sets in advance so that send to the downlink signal transmitting power of described terminal.
14. base station according to claim 13, wherein, the transmitting power of the described terminal of described adjustment place down channel comprises:
According to the total transmitting power P and the power ratio SCPIR of described down channel, adjust the transmitting power of described down channel.
15. a communication system comprises: base station, described base station are used for carrying out as each described method of claim 9 to 12.
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| CN2010101073590A CN102143569A (en) | 2010-02-02 | 2010-02-02 | Communication control method, communication control device and communication control system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103139885A (en) * | 2011-11-29 | 2013-06-05 | 中兴通讯股份有限公司 | Mobile station power control method and device based on voice services over adaptive multi-user channels on one slot (VAMOS) pairing users |
| WO2015096281A1 (en) * | 2013-12-24 | 2015-07-02 | 华为技术有限公司 | Method and apparatus for sending signal of soft handover region in unbalanced area of heterogeneous network |
| CN105282834A (en) * | 2014-05-30 | 2016-01-27 | 中兴通讯股份有限公司 | Power allocation method and device |
| CN109756923A (en) * | 2017-11-02 | 2019-05-14 | 华为技术有限公司 | Motion management method, apparatus and system |
-
2010
- 2010-02-02 CN CN2010101073590A patent/CN102143569A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103139885A (en) * | 2011-11-29 | 2013-06-05 | 中兴通讯股份有限公司 | Mobile station power control method and device based on voice services over adaptive multi-user channels on one slot (VAMOS) pairing users |
| CN103139885B (en) * | 2011-11-29 | 2016-06-29 | 中兴通讯股份有限公司 | Mobile Poewr control method and device based on VAMOS pairing user |
| WO2015096281A1 (en) * | 2013-12-24 | 2015-07-02 | 华为技术有限公司 | Method and apparatus for sending signal of soft handover region in unbalanced area of heterogeneous network |
| CN105282834A (en) * | 2014-05-30 | 2016-01-27 | 中兴通讯股份有限公司 | Power allocation method and device |
| CN109756923A (en) * | 2017-11-02 | 2019-05-14 | 华为技术有限公司 | Motion management method, apparatus and system |
| CN109756923B (en) * | 2017-11-02 | 2021-06-22 | 华为技术有限公司 | Mobility management method, device and system |
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