CN103379535A - Communication terminal and cell measuring method and device of communication terminal - Google Patents
Communication terminal and cell measuring method and device of communication terminal Download PDFInfo
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- CN103379535A CN103379535A CN2012101175127A CN201210117512A CN103379535A CN 103379535 A CN103379535 A CN 103379535A CN 2012101175127 A CN2012101175127 A CN 2012101175127A CN 201210117512 A CN201210117512 A CN 201210117512A CN 103379535 A CN103379535 A CN 103379535A
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Abstract
The invention provides a communication terminal and a cell measuring method and device of the communication terminal. The communication terminal comprises a first communication module, an antennal corresponding to the first communication module, a communication module and an antennal corresponding to the communication module, wherein the first communication module and the antennal corresponding to the first communication module work under a first communication mode, the communication module and the antennal corresponding to the communication module work under other communication modes. The cell measuring method comprises a detection unit, a control unit and a measuring unit, wherein the detection unit is suitable for detecting whether the communication module under other communication modes is in an idle state, the control unit is used for controlling the first communication module to receive signals of a service cell and other adjacent cells through the antenna corresponding to the first communication module and the antennal corresponding to the communication module in an idle state, and the measuring unit is used for measuring the service cell and other adjacent cells based on the received signals. By means of the technical scheme, the communication terminal and the cell measuring method and device of the communication terminal can improve the speed and accuracy of cell measurement, and improve the performance of cell reselection and switchover triggered by measurement.
Description
Technical field
The present invention relates to the communications field, particularly a kind of communication terminal and cell measuring method thereof and device.
Background technology
Cellular mobile communication mobile phone (abbreviation mobile phone), especially smart mobile phone, be the platform of multiple wireless signal transmitting-receiving, comprise: cellular mobile communication 2G (such as GSM, GPRS, EDGE etc.), 3G (such as WCDMA, CDMA2000, TD-SCDMA etc.), 4G (for example LTE); Mobile TV (such as DVB-H, CMMB, T-DMB etc.); Location (for example GPS); WLAN (wireless local area network) (WIFI 802.11b/g/a/n) etc.Separately antenna, radio-frequency module and baseband module are arranged under every kind of wireless communications mode (communication standard).
Cellular mobile communication networks is comprised of residential quarter one by one.Communication terminal can be measured the radio signal quality of Serving cell and adjacent cell thereof at any time, thereby judges whether to transfer to from a residential quarter another residential quarter (cell reselection and switching).The particular content of measuring is different and difference to some extent specifically describes the standard that please refer to each wireless communications mode with various wireless communications modes.Measure substantially and can be divided into two large classes, measurement and cross-system measurement in the system.Measurement can be divided into common frequency measurement and different-frequency measure again in the system.It all is different-frequency measure at present basically that cross-system is measured.Measure in the system and refer to that tested residential quarter and Serving cell are the residential quarters of same wireless communications mode.Cross-system is measured (measuring between system) and is referred to that tested residential quarter and Serving cell are not the residential quarters of same wireless communications mode, and for example Serving cell is the TD-SCDMA residential quarter, and tested residential quarter is the GSM residential quarter.Common frequency measurement refers to that tested residential quarter and Serving cell are same frequencies; Different-frequency measure refers to that tested residential quarter and Serving cell are different frequent points.
In the prior art, communication terminal only arranges an antenna usually, so can only receive the signal of a frequency simultaneously.Common frequency measurement might be finished in the Serving cell standby or when communicating business with communication terminal, and the opportunity of optionally measuring is many; Different-frequency measure since when measuring communication terminal just can't or communicate business in the Serving cell standby, therefore can only look for the space of the signal of not receiving and dispatching Serving cell to arrange to measure, optional Measuring Time is limited.In order to improve certainty of measurement, usually can be within one period fixed time a residential quarter be repeatedly measured to average and report.The measured chance of a residential quarter is fewer, and it is just longer to finish so the time that specifies number measurement, and the number of perhaps measuring at the appointed time is fewer, average after precision just lower.
Correlation technique can be the U.S. Patent application of US2009274123A1 with reference to publication number also, this Patent Application Publication a kind of cell measuring method and system.
Summary of the invention
The problem to be solved in the present invention provides a kind of communication terminal and cell measuring method and device, realizing the raising to speed and the precision of cell measurement, and makes by the performance of the cell reselection of measurement triggering and switching better.
For addressing the above problem, technical solution of the present invention provides a kind of cell measuring method of communication terminal, described communication terminal comprises the first communication module that works under the first communication pattern and corresponding antenna thereof and works in communication module and corresponding antenna thereof under other communication patterns, described cell measuring method comprises: if the communication module that detects under other communication patterns is in idle condition, then controls described first communication module by its corresponding antenna and be in antenna reception Serving cell corresponding to the communication module of idle condition and the signal of neighbor cell thereof; Based on the described signal that receives Serving cell and neighbor cell thereof are measured.
Optionally, the described first communication module of described control is by its corresponding antenna and be in antenna reception Serving cell corresponding to the communication module of idle condition and the signal of neighbor cell comprises:
Signal by antenna reception Serving cell corresponding to described first communication module;
By the communication module that is in idle condition corresponding antenna reception Serving cell and the signal of neighbor cell or the signal of described neighbor cell.
Optionally, controlling the signal of described first communication module by antenna reception Serving cell corresponding to the communication module that is in idle condition or its neighbor cell is to carry out in time outside the antenna transmitted signal corresponding by described first communication module.
Optionally, described described signal based on receiving comprises Serving cell and neighbor cell measurement thereof:
Obtain calibration value corresponding to the residing frequency band of current reception signal;
With described calibration value the actual measured value of Serving cell and neighbor cell thereof is calibrated.
Optionally, described calibration value corresponding to the residing frequency band of current reception signal that obtain comprises:
Under glitch-free communication environment, the radiofrequency signal that launch in the preset signals source that receives by the antenna measurement corresponding with the communication module under other communication patterns of antenna corresponding to described first communication module respectively;
Calculate the measurement difference between the measurement result of the measurement result of antenna corresponding to the described first communication module antenna corresponding with the communication module under other communication patterns;
For each frequency band, obtain described measurement difference corresponding to a plurality of tranmitting frequencies;
With the mean value of measurement difference corresponding to the described a plurality of tranmitting frequencies calibration value as corresponding frequency band.
Optionally, if the communication module that detects under other communication patterns enters operating state, then control described first communication module and stop by antenna reception Serving cell corresponding to the described communication module that enters operating state or the signal of its neighbor cell.
Optionally, the frequency band of antenna corresponding to the communication module under other communication patterns covers the frequency band of antenna corresponding to described first communication module.
Optionally, the antenna that the antenna that the communication module under other communication patterns is corresponding is corresponding with described first communication module is mutually near arranging.
Optionally, described the first communication pattern is GSM, TD-SCDMA, WCDMA, CDMA2000 or LTE.
Optionally, other communication patterns comprise at least a in GPS communication pattern and the mobile TV communication pattern.
For addressing the above problem, technical solution of the present invention also provides a kind of cell measurement device of communication terminal, described communication terminal comprises the first communication module that works under the first communication pattern and corresponding antenna thereof and works in communication module and corresponding antenna thereof under other communication patterns, described cell measurement device comprises: detecting unit, and whether the communication module that is suitable for detecting under other communication patterns is in idle condition; Control unit, when being suitable for communication module under detecting other communication patterns and being in idle condition, control described first communication module by its corresponding antenna and be in antenna reception Serving cell corresponding to the communication module of idle condition and the signal of neighbor cell thereof; Measuring unit is suitable for based on the described signal that receives Serving cell and neighbor cell thereof being measured.
Compared with prior art, technical solution of the present invention has the following advantages:
During first communication module in communication terminal is in running order, detect by the state to other communication modules of often not using in the described communication terminal, when detecting other communication modules and be in idle condition, the control first communication module is by its corresponding antenna and the described common measurement that realizes Serving cell and neighbor cell thereof of antenna corresponding to communication module that is in idle condition, can when receiving the Serving cell signal, carry out different-frequency measure thus, and greatly increase the opportunity of measuring, thereby improved speed and the precision of cell measurement, and made by the performance of the cell reselection of measurement triggering and switching better.
Description of drawings
Fig. 1 is the control flow schematic diagram that duplexer switches in the embodiment of the invention;
Fig. 2 is the execution mode schematic diagram of the cell measurement device of communication terminal provided by the invention;
Fig. 3 is a kind of embodiment schematic diagram of the cell measurement device of communication terminal provided by the invention.
Embodiment
For above-mentioned purpose of the present invention, feature and advantage can more be become apparent, below in conjunction with accompanying drawing the specific embodiment of the present invention is described in detail.Set forth detail in the following description so that fully understand the present invention.But the present invention can be different from alternate manner described here and implements with multiple, and those skilled in the art can do similar popularization in the situation of intension of the present invention.Therefore the present invention is not subjected to the restriction of following public embodiment.
As stated in the Background Art, communication terminal of the prior art (for example mobile phone) generally only has an antenna, thus can only receive simultaneously the signal of a frequency, less opportunity to the measurement of alien-frequency district, cause speed and the precision measured relatively poor.The inventor considers, if can receive simultaneously the signal of two alien frequencies, can when receiving the Serving cell signal, measure alien-frequency district so, the chance of measuring so just can increase greatly, speed and the precision measured also just can improve, and depend on the cell reselection of cell measurement performance and the performance of switching also can obtain corresponding lifting.But antenna is for important restraining factors that receive simultaneously the alien frequencies signal, even communication terminal has the radio-frequency module that the second cover is used for receiving signal, also is difficult to effectively common antenna.And the way with the power splitter one-to-two commonly used can reduce the sensitivity (reducing about 3dB) that receives the Serving cell signal, and this generally is difficult to accept.In addition, although the mode that can also adopt extra increase antenna is measured alien-frequency district when being implemented in the signal that receives Serving cell, but for mobility, economy and consideration attractive in appearance, constraint when the profile of communication terminal, weight, cost etc. all are design, extra increase antenna has not only strengthened the difficulty of device layout in the communication terminal, and extra antenna also increased cost, therefore common few this scheme of using.
Increase along with user's request, more and more communication modules that work under other communication patterns are integrated in the communication terminal goes, for example bluetooth, WLAN (wireless local area network) (for example WIFI), mobile TV, global positioning system (GPS, Global Positioning System) etc., these communication modules all have corresponding antenna to realize radio communication.The inventor considers, many communication modules in the communication terminal, except the communication module that be used for to realize cellular mobile communication usually always in running order (operating state comprises standby and communicates business), other communication modules generally only just can be activated or start when the user has user demand, and within most times, the user is for reasons such as power savings, these communication modules and corresponding antenna thereof are closed in the capital, for example, the user can not direct-open mobile TV or a GPS for power saving usually.In the embodiment of the present invention, the residing state of pent communication module is called idle condition.Therefore, when described other communication modules are in idle condition, show that antenna corresponding to these communication modules also is in idle state, hardware performance at these antenna satisfies in the situation of certain condition, can utilize this moment these idle antennas to carry out the reception of signal under the cellular mobile communication pattern fully, and based on the measurement of the signal realization that receives to Serving cell and neighbor cell thereof.Because this mode only need to be carried out the switching controls of many antennas and do not needed to increase extra antenna, thereby can when receiving the Serving cell signal, carry out different-frequency measure, and greatly increase the opportunity of measuring, thereby improved speed and the precision of cell measurement, and made by the performance of the cell reselection of measurement triggering and switching better.
Thus, embodiment of the present invention provides a kind of cell measuring method of communication terminal, described communication terminal comprises the first communication module that works under the first communication pattern and corresponding antenna thereof and works in communication module and corresponding antenna thereof under other communication patterns, described cell measuring method comprises: if the communication module that detects under other communication patterns is in idle condition, then controls described first communication module by its corresponding antenna and be in antenna reception Serving cell corresponding to the communication module of idle condition and the signal of neighbor cell thereof; Based on the described signal that receives Serving cell and neighbor cell thereof are measured.
The below elaborates with the cell measuring method of specific embodiment to above-mentioned communication terminal.
In the present embodiment, described communication terminal describes as an example of mobile phone with cellular mobile communication module and other communication modules example, but described communication terminal is not limited to mobile phone, in other embodiments, also can be panel computer with cellular mobile communication module and other communication modules, notebook computer etc.
In the present embodiment, the cellular mobile communication pattern is called the first communication pattern, the communication module that works under the cellular mobile communication pattern is called first communication module, and described the first communication pattern can be GSM, TD-SCDMA, WCDMA, CDMA2000 or LTE.In other embodiments, described the first communication pattern can also be other 2G, 3G or the mobile communication mode of 4G.In the present embodiment, communication pattern outside the cellular mobile communication pattern is called other communication patterns, the communication module that works under other communication patterns is called other communication modules, described other communication patterns comprise at least a in GPS communication pattern and the mobile TV communication pattern, and described mobile TV communication pattern can be DVB-H, CMMB or T-DMB etc.
Generally, keep standby in order to make described communication terminal, described first communication module can be constantly in running order, so this communication module is the communication module that often is used in the described communication terminal; And because other communication modules only just can be activated or activate in the situation of needs, the most of the time then is in idle condition, so other communication modules belong to the communication module that often is not used.In the present embodiment, detect by the state to other communication modules of often not being used, be in idle condition if detect these communication modules, just can control described first communication module with antenna corresponding to the described communication module that is in idle condition as auxiliary, cooperate antenna corresponding to first communication module to receive together the signal of Serving cell and neighbor cell thereof to realize cell measurement.During implementation, signal that can be by antenna reception Serving cell corresponding to first communication module to be realizing the measurement to described Serving cell, and the signal by antenna reception corresponding to the described communication module that the is in idle condition residential quarter adjacent with described Serving cell is with the measurement of realization to neighbor cell; Signal that also can be by antenna reception neighbor cell corresponding to first communication module to be realizing the measurement to neighbor cell, and the signal by antenna reception Serving cell corresponding to the described communication module that is in idle condition is to realize the measurement to Serving cell; Can also be by antenna corresponding to first communication module and be in signal that the antenna corresponding to communication module of idle condition receive Serving cell jointly to realize the measurement to Serving cell, the signal of common reception of neighboring cell is to realize the measurement to neighbor cell.Certainly, can normally use antenna receiving signal corresponding to other communication modules of being in idle condition to realize the measurement to Serving cell or its neighbor cell in order to ensure described first communication module, need to be when being described communication terminal configuration antenna, make the frequency band of antenna corresponding to communication module under other communication patterns cover the frequency band of antenna corresponding to described first communication module.
In the implementation procedure of the technical program, on the one hand, needing antenna corresponding to other communication modules of control is for its corresponding communication module or for first communication module.When reality is implemented, a duplexer can be set, the controller in the described communication terminal is by carrying out switching controls to described duplexer, to realize the switching of the object that antenna corresponding to other communication modules served.Particularly, if detect and have at least a communication module that is in idle condition in other communication modules, the corresponding antenna of communication module that then will be in idle condition by described duplexer switches to the state for first communication module, enter operating state if detect other communication modules, then control described first communication module and stop by antenna reception Serving cell corresponding to the described communication module that enters operating state or the signal of its neighbor cell, and switch back for its oneself by the corresponding antenna of communication module that described duplexer just can enter this operating state.On the other hand, if there is at least a communication module that is in idle condition in other communication modules, namely there be at least one antenna that is in idle state, then also need to control first communication module and receive the signal of Serving cell when by any root or which root antenna to realize the measurement to Serving cell, by which root or which root antenna the signal of the reception of neighboring cell when is to realize the measurement to neighbor cell, namely to measuring object and the arrangement on the opportunity of measurement.When reality is implemented, because first communication module may relate to the transmitting-receiving of multiple signals, therefore can dispose for it radio-frequency module or a plurality of independently radio-frequency module of a support multichannel transmitting-receiving, under the control of the controller in described communication terminal, baseband module in the first communication module just can be realized the measurement to Serving cell and neighbor cell thereof by receiving the multiple signals from Serving cell and neighbor cell thereof.
Because with respect to the technical scheme that increases antenna, the cost that adding duplexer increases is very little, and the cost that the radio-frequency module that adopts the support multichannel transmitting-receiving increases also can significantly reduce along with the raising of semiconductor technology, therefore the technical program can improve on the basis that increases hardly hardware cost speed and the precision of cell measurement, can improve simultaneously the cell reselection that depends on the cell measurement performance and the performance of switching, and not need to increase the difficulty that additional antenna has also reduced device layout in the mobile phone.
The below describes the switching controls flow process of described duplexer in detail.Fig. 1 is the control flow schematic diagram that duplexer switches in the embodiment of the invention.In the present embodiment, take the quantity of antenna corresponding to first communication module as one, describe as one as example take the quantity of other communication modules, this root antenna that first communication module is corresponding is called the first antenna, these other communication modules are called second communication module, the communication pattern of described second communication module work is called the second communication pattern, and the antenna that described second communication module is corresponding is called the second antenna.During actual enforcement, described second communication module can be GPS communication module or mobile TV communication module.The control flow that duplexer switches is as shown in Figure 1:
Execution in step S101 judges whether second communication module is in idle condition, is then to change step S102 over to, otherwise changes step S104 over to.
Execution in step S102, the control antenna switch makes the second antenna connect first communication module.In the present embodiment, refer to that between sets up the passage of signal transmission being connected between the second antenna and the first communication module, make first communication module can use the signal of the second antenna reception Serving cell or its neighbor cell to realize cell measurement.After the step S102, change step S103 over to.
Execution in step S103 is transformed into first communication module and uses the first antenna and the second antenna to carry out the state of signal transmitting and receiving.On the second antenna and basis that first communication module has been connected, can be by the control of the controller in communication terminal first communication module with the second antenna as assisting, cooperate the first antenna to receive together the signal of Serving cell and neighbor cell thereof, and by the baseband module in the first communication module multiple signals that receive are measured, thereby finish cell measurement.The concrete mode that related control first communication module arranges measuring object and the opportunity of measurement among the step S103 will be discussed in more detail below.After the step S103, change step S101 cycle criterion over to.
Execution in step S104 judges whether the second antenna is just used by first communication module, is then to change step S105 over to, otherwise changes step S106 over to.
Execution in step S105 is transformed into first communication module and only uses the first antenna to carry out the state of signal transmitting and receiving, changes afterwards step S106 over to.First communication module is only using the first antenna to carry out under the state of signal transmitting and receiving, and working method and cellular mobile communication module of the prior art do not have difference, are not described in detail at this.
Execution in step S106, the control antenna switch makes the second antenna connect second communication module.By the second antenna being switched to after second communication module links to each other, just can make the second communication module normal operation.After the step S106, change step S101 cycle criterion over to.
Need to prove, in other embodiments, the quantity of other communication modules also can be two or more, need to detect this moment to the state of each communication module in other communication modules, be in idle condition if detect certain communication module, antenna that then the control antenna switch is corresponding with this communication module connects first communication module, and the signal of antenna reception Serving cell corresponding to the first communication module communication module that just can use this to be in idle condition or its neighbor cell is to realize cell measurement thus.Therefore, if it is more to detect the communication module that is in idle condition, then can be also just more for the antenna of cell measurement for first communication module, first communication module just can be by more antenna reception from the signal of Serving cell and neighbor cell thereof to realize cell measurement, thereby can finish the measurement that specifies number with the shorter time, perhaps make the number of measurement more at the appointed time, promoted thus speed and the precision of cell measurement.First communication module is during the signal that uses these connected antenna reception Serving cells or its neighbor cell, enter operating state if detect one or more communication modules, then stopping the corresponding antenna of communication module that first communication module using described antenna corresponding to communication module that enters operating state, control antenna switch will enter operating state switches back for its oneself.
The below arranges measuring object and the concrete mode on the opportunity of measurement to describe to the control first communication module.In the embodiment of the present invention, the described first communication module of described control is by its corresponding antenna and be in antenna reception Serving cell corresponding to the communication module of idle condition and the signal of neighbor cell can comprise: by the signal of antenna reception Serving cell corresponding to described first communication module; By the communication module that is in idle condition corresponding antenna reception Serving cell and the signal of neighbor cell or the signal of described neighbor cell.
In the present embodiment, first communication module uses under the state of the first antenna and the second antenna at the same time, be with the function difference of cellular mobile communication module in the prior art: first communication module can also use the second antenna receiving signal to realize cell measurement using the first antenna receiving and transmitting signal with when realizing standby, communicating business and cell measurement.In the prior art, only use when first communication module in the situation of an antenna (i.e. the first antenna), all measurements all need to finish by the first antenna, as described in the background art, because the first antenna can only receive the signal of a frequency simultaneously, although common frequency measurement might be finished in the Serving cell standby or when communicating business in communication terminal, optional measurement is also many opportunity, but for different-frequency measure since when measuring communication terminal just can't or communicate business in the Serving cell standby, need to avoid the first antenna and carry out the shared time slot of signal transmitting and receiving for realizing standby or communication service, optional measurement is very limited opportunity, causes certainty of measurement lower, Measuring Time is longer.Therefore, when first communication module can pass through the second antenna subsidiary, most of different-frequency measure all can be configured to the second antenna gets on to finish, thereby greatly increased the opportunity of measurement, effectively promote precision and the speed of cell measurement, and make by the performance of the cell reselection of measurement triggering and switching better, especially communicate business when (comprise speech business and data service) by the first antenna at Serving cell at first communication module, the effect of the technical program is more obvious.Along with popularizing of smart mobile phone, the data service duration is more and more longer, and this scene is also more and more general, and this just more can embody the advantage of the technical program.
Therefore, in the specific implementation, can be by the signal of the first antenna reception Serving cell corresponding to first communication module, by corresponding the second antenna reception Serving cell and the signal of neighbor cell or the signal of described neighbor cell of second communication module that is in idle condition, the signal of the Serving cell that so just can receive based on the first antenna or the first antenna and the second antenna is realized the measurement to Serving cell, and the signal of the neighbor cell that receives based on the second antenna is realized the measurement to neighbor cell.Need to prove, in the present embodiment, to the measurement that Serving cell carries out, can control first communication module by the first antenna and the second antenna at one time or different time receive the signal of Serving cell, but the main signal by the first antenna reception Serving cell; And the measurement that neighbor cell is carried out, then can control first communication module and receive simultaneously the alien frequencies signal by the first antenna and the second antenna, thereby by the measurement while of the first antenna to Serving cell, realized again by the measurement of the second antenna to neighbor cell.In other embodiments, can also by the first antenna and the second antenna at one time or different time receive the signal of one or more neighbor cells to realize the measurement to neighbor cell.
In actual implementation process, because the communication terminal receive-transmit isolation is not high, thus usually in the first antenna transmission, can disturb string in receive path, thus the accuracy of measuring reduced.Therefore, in the present embodiment, control the signal of described first communication module by antenna reception Serving cell corresponding to the communication module that is in idle condition or its neighbor cell and be in the time outside the antenna transmitted signal corresponding by described first communication module and carry out.So just, can when configuration the second antenna is measured, avoid the shared time slot of the first antenna transmitted signal, can improve thus the accuracy of cell measurement.
Need to prove, because the first antenna and communication channel corresponding to the second antenna difference, the measurement result of the signal of the same signal source emission that receives for both may be different, in order to make the result who measures on the result that measures on the second antenna and the first antenna consistent, need to make the first antenna relevant as far as possible with the second antenna.Therefore, use the portable terminal of the technical program, the mutually close setting of antenna that antenna that need to the communication module under other communication patterns is corresponding is corresponding with described first communication module.In the present embodiment, it is as close as possible to be about to the first antenna and the second antenna, makes antenna lobe pattern consistent as far as possible, thereby improves correlation each other.
Even the first antenna and the second antenna is as close as possible to improve correlation each other, but be difficult to after all guarantee on the first antenna that measurement result is in full accord on the measurement result and the second antenna, therefore, the specific embodiment of the present invention can adopt the mode of calibration to improve the precision of measurement.In the cell measuring method of the communication terminal that embodiment of the present invention provides, described described signal based on receiving comprises Serving cell and neighbor cell measurement thereof: obtain calibration value corresponding to the residing frequency band of current reception signal; With described calibration value the actual measured value of Serving cell and neighbor cell thereof is calibrated.
In the embodiment of the present invention, can obtain in the following way calibration value corresponding to the residing frequency band of current reception signal:
Under glitch-free communication environment, the radiofrequency signal that launch in the preset signals source that receives by the antenna measurement corresponding with the communication module under other communication patterns of antenna corresponding to described first communication module respectively;
Calculate the measurement difference between the measurement result of the measurement result of antenna corresponding to the described first communication module antenna corresponding with the communication module under other communication patterns;
For each frequency band, obtain described measurement difference corresponding to a plurality of tranmitting frequencies;
With the mean value of measurement difference corresponding to the described a plurality of tranmitting frequencies calibration value as corresponding frequency band.
In the present embodiment, when reality is implemented, can under the environment without external interference, such as microwave dark room or shielding house, the signal source wireless signal emission of a configurable tranmitting frequency be set, such as carrier wave.Measure respectively the radiofrequency signal that receives with the first antenna and the second antenna, choosing different positions and angle takes multiple measurements, record the difference (dB represents) of the measurement result between the first antenna and the second antenna, and a plurality of measurement differences of record are averaged.For each frequency band, get a plurality of tranmitting frequencies and obtain as stated above the corresponding measurement difference of each tranmitting frequency, all described measurement differences of obtaining on each frequency band are averaged rear calibration value as this frequency band.When with described calibration value the actual measured value of Serving cell and neighbor cell thereof being calibrated, only need on the basis of the measured value that the second antenna measures, add corresponding calibration value according to current frequency band of living in, just obtain final result.
Generally, when the quantity of antenna corresponding to described first communication module is one, the cell measuring method of the communication terminal that provides by present embodiment can obviously promote speed and the precision of cell measurement, and under some communication pattern, such as the communication patterns such as HSPA+, LTE of supporting MIMO, the quantity of the antenna that described first communication module is corresponding is more than two or two, still can be suitable for the cell measuring method of the communication terminal that embodiment of the present invention provides this moment.The below carries out simple declaration take the quantity of antenna corresponding to described first communication module as two as example.
Suppose that two antennas that first communication module is corresponding are called the 1st antenna A and the 1st antenna B, if the quantity of other communication modules is M (M is natural number), then antenna corresponding to this M communication module is called the 2nd antenna, the 3rd antenna ..., the M+1 antenna.If at least one is in idle condition in this M communication module, antenna corresponding to communication module that then is in idle condition can use for first communication module, this moment, no matter whether first communication module received the signal of Serving cell and neighbor cell thereof to realize cell measurement by the 1st antenna A and the 1st antenna B, described antenna corresponding to communication module that is in idle condition can be switched to first communication module and be connected, and the control first communication module is by the 1st antenna A, the 1st antenna B and described antenna corresponding to communication module that is in idle condition receive the signal of Serving cell and neighbor cell thereof together to realize cell measurement.
The cell measuring method of the communication terminal that provides for embodiment of the present invention is two or two implementation when above in the quantity of antenna corresponding to first communication module, can be with reference to the associated description in above-described embodiment.Certainly, in reality was implemented, the quantity of the antenna that the quantity of the antenna that first communication module is corresponding usually and other communication modules are corresponding all can be above two.
Based on the cell measuring method of above-mentioned communication terminal, embodiment of the present invention also provides a kind of cell measurement device of communication terminal.Fig. 2 is the execution mode schematic diagram of the cell measurement device of communication terminal provided by the invention, as shown in Figure 2, described communication terminal comprises the first communication module 10 that works under the first communication pattern and corresponding antenna thereof and works in communication module and corresponding antenna thereof under other communication patterns, described communication module and the corresponding antenna thereof that works under other communication patterns comprises: second communication module 20 and corresponding antenna thereof, ..., N communication module and corresponding antenna thereof.Described cell measurement device 30 comprises: detecting unit 301, and whether the communication module that is suitable for detecting under other communication patterns is in idle condition; Control unit 302, link to each other with described detecting unit 301, when being suitable for communication module under detecting other communication patterns and being in idle condition, control described first communication module 10 by its corresponding antenna and be in antenna reception Serving cell corresponding to the communication module of idle condition and the signal of neighbor cell thereof; Measuring unit 303 is suitable for based on the described signal that receives Serving cell and neighbor cell thereof being measured.In the embodiment of the present invention, described the first communication pattern can be GSM, TD-SCDMA, WCDMA, CDMA2000 or LTE, and what described other communication patterns can be in GPS communication pattern and the mobile TV communication pattern is at least a.The frequency band of the antenna that the communication module under other communication patterns is corresponding covers the frequency band of antenna corresponding to described first communication module.The antenna antenna mutually close setting corresponding with described first communication module that communication module under other communication patterns is corresponding.
The below elaborates with the cell measurement device of specific embodiment to above-mentioned communication terminal.
Fig. 3 is a kind of embodiment schematic diagram of the cell measurement device of communication terminal provided by the invention.See also Fig. 3, described communication terminal comprises the first communication module 10 that works under the first communication pattern and corresponding the first antenna 100 thereof and works in second communication module 20 and the second corresponding antenna 200 thereof under the second communication pattern.Described first communication module 10 comprises the first radio-frequency front-end 101, the first radio-frequency module 102 and the first baseband module 103, and described the first radio-frequency module 102 links to each other with described the first antenna 100 by the first radio-frequency front-end 101; Described second communication module 20 comprises the second radio-frequency front-end 201, the second radio-frequency module 202 and the second baseband module 203, and described the second radio-frequency module 202 links to each other with described the second antenna 200 by the second radio-frequency front-end 201.
Those skilled in the art know, and radio-frequency front-end is made of RC network (resistance-capacitance network) usually for being used for the circuit of antenna match, mainly realizes the impedance matching between antenna and the radio-frequency module.In the present embodiment, the first radio-frequency front-end 101 be first communication module 10 corresponding to the radio-frequency front-end of the first antenna 100, the second radio-frequency front-end 201 is that second communication module 20 is corresponding to the radio-frequency front-end of the second antenna 200.Radio-frequency module is for be used for realizing between radio signal and the wired electric signal the mutually device of conversion, carrier frequency usually at 500MHz between the 2.5GHz, by the standard of different wireless communication pattern.Radio-frequency module can be single mode (for a certain communication pattern), also can be multimode (for multiple different communication modes).The implementation of radio-frequency module is not limit, can be together partly integrated with baseband module or other, and also can be part independently.In the present embodiment, the first radio-frequency module 102 is the radio-frequency module of first communication module 10; The second radio-frequency module 202 is the radio-frequency module of second communication module 20.Baseband module is for the treatment of near the received in wireless communications of centre frequency 0Hz and the signal of transmission, and the signal of reception is from radio-frequency module, and demodulation is got off from the carrier wave, and the signal that needs to send is modulated on the carrier wave and launches to radio-frequency module.In the present embodiment, the first baseband module 103 is the baseband module of first communication module 10, and the second baseband module 203 is the baseband module of second communication module 20.
Described communication terminal also comprises the cell measurement device, and described cell measurement device comprises: detecting unit, and whether the second communication module 20 that is suitable for detecting under the second communication pattern is in idle condition; Control unit, when being suitable for second communication module 20 under detecting the second communication pattern and being in idle condition, control described first communication module 10 receives Serving cells and neighbor cell thereof by described the first antenna 100 and the second antenna 200 of being in second communication module 20 correspondences of idle condition signal; Measuring unit is suitable for based on the described signal that receives Serving cell and neighbor cell thereof being measured.
In the embodiment of the present invention, be in antenna reception Serving cell corresponding to the communication module of idle condition and the signal of neighbor cell thereof in order to realize controlling first communication module by the first antenna and at least one, the first radio-frequency module in the first communication module comprises at least two radio frequency submodules, wherein antenna corresponding at least one described radio frequency submodule and the described communication module that is in idle condition is corresponding, so just, can be when receiving signal by antenna corresponding to first communication module and the radio frequency submodule corresponding with it, the reception that realizes signal by antenna corresponding to the described communication module that is in idle condition and the radio frequency submodule corresponding with it.In the present embodiment, described the first radio-frequency module 102 comprises the first radio frequency submodule 102a and the second radio frequency submodule 102b, and wherein: the first radio frequency submodule 102a is corresponding with described the first antenna 100, receives the signal that receives by the first antenna 100; The second radio frequency submodule 102b is corresponding with the second antenna 200, receives the signal that receives by the second antenna 200.Need to prove, when reality is implemented, the first radio frequency submodule 102a is the radio-frequency module with complete function, and the second radio frequency submodule 102b is the radio-frequency module that is used for subsidiary in the first communication module 10, the function that only need to have receiving unit gets final product, and can reduce some costs like this.
In the present embodiment, described control unit comprises: the duplexer 402 that links to each other with second communication module 20 under the second communication pattern and corresponding antenna 200 thereof; With described duplexer 402 and the controller 401 that the first baseband module 103 links to each other, be suitable for controlling described duplexer 402 with the second corresponding radio frequency submodule 102b in the second antenna 200 of being communicated with described second communication module 20 correspondences that are in idle condition and described the first radio-frequency module 102; Described controller 401 also is suitable for controlling described the first baseband module 103 and carries out cell measurement with the signal of each radio frequency submodule output.Need to prove, the baseband module of common cellular mobile communication module is slightly different in the first baseband module 103 and the prior art, the first baseband module 103 is in the signal that processing the first radio frequency submodule 102a receives by the first antenna 100, can also process the signal that the second radio frequency submodule 102b receives by the second antenna 200, get final product but only carry out cell measurement for the signal that the second radio frequency submodule 102b receives by the second antenna 200, and the signal that receives by the first antenna 100 for the first radio frequency submodule 102a also needs to carry out other base band signal process.
In the present embodiment, duplexer 402 outputs connect the second antenna 200, and input connects the multi-channel rf signal.Can be by the configuration of control signal, make the second antenna 200 be connected radiofrequency signal with appointment and connect.During actual enforcement, duplexer 402 can adopt ripe device, such as the RF8889A of RFMD company, the TQP4M3019 of Triquint company etc.The function of controller 401 is normally by processor, such as microcontroller (MCU, Micro Control Unit) or the software of the upper operation of digital signal processor (DSP, Digital Signal Processing) realize, can finish on request various control functions.In the present embodiment, the control signal that is used for 402 switchings of control antenna switch can be produced by described controller 401.Need to prove, communication terminal generally has the wireless controller that each wireless communication module and other modules (such as display module, input/output module etc. of other modules) are controlled, in the present embodiment, described controller 401 integrates with described wireless controller, in other embodiments, described controller also can be used as independently module.
In the present embodiment, described control unit also comprises: the 3rd radio frequency front end 404 that links to each other with described duplexer 402, be suitable for realizing the second antenna 200 of second communication module 20 correspondences under the second communication pattern and the coupling between the described first communication module 10, described the second antenna 200 that is in second communication module 20 correspondences of idle condition links to each other with corresponding the second radio frequency submodule 102b in described the first radio-frequency module 102 by the 3rd radio frequency front end 404, and namely the 3rd radio frequency front end 404 is that first communication module 10 is corresponding to the radio-frequency front-end of the second antenna 200.Need the 3rd radio frequency front end 404 to be because the characteristic of the second antenna 200 and the first antenna 100 is generally different, first communication module 10 needs normal second antenna 200 that uses, and just need to do antenna match for the second antenna 200.
In the present embodiment, described controller also is suitable for entering operating state when the second communication module 20 that detects under the second communication pattern, controls described duplexer 402 and is communicated with described second communication module 20 and the second corresponding antenna 200 thereof that enters operating state.
During implementation, described detecting unit can also be integrated in the described controller 401, described measuring unit is integrated in described the first baseband module 103.
In above-described embodiment of the cell measurement device of communication terminal provided by the invention, modules/unit is based on that the mode of software and hardware combining realizes, can also adopt in other embodiments of the invention the mode of hardware or software to realize.
In other embodiments, described control unit can comprise: the first control unit is suitable for controlling described first communication module by the signal of its corresponding antenna reception Serving cell; The second control unit is suitable for controlling described first communication module by the communication module that is in idle condition corresponding antenna reception Serving cell and the signal of neighbor cell or the signal of described neighbor cell.
During implementation, it is to carry out in time outside the antenna transmitted signal corresponding by described first communication module that described the second control unit is controlled the signal of described first communication module by antenna reception Serving cell corresponding to the communication module that is in idle condition or its neighbor cell.
Described measuring unit can comprise: acquiring unit is suitable for obtaining calibration value corresponding to the residing frequency band of current reception signal; Alignment unit links to each other with described acquiring unit, is suitable for described calibration value the actual measured value of Serving cell and neighbor cell thereof being calibrated.Associated description in the cell measuring method of the communication terminal that calibration value corresponding to the residing frequency band of current reception signal that obtains for described acquiring unit can provide with reference to the embodiment of the invention does not repeat them here.
In addition, when described control unit also is suitable for communication module under detecting other communication patterns and enters operating state, control antenna corresponding to communication module that described first communication module stops to enter by this operating state and carry out the transmitting-receiving of signal.
Embodiment of the present invention also provides a kind of communication terminal, comprises the first communication module that works under the first communication pattern and corresponding antenna thereof and works in communication module and corresponding antenna thereof under other communication patterns, also comprises above-mentioned cell measurement device.
The implementation of described communication terminal and cell measurement device thereof can also with reference to the enforcement of the cell measuring method of communication terminal in the embodiment of the present invention, not repeat them here.
It will be appreciated by those skilled in the art that, the all or part of of cell measurement device of realizing the communication terminal in above-described embodiment is to come the relevant hardware of instruction to finish by program, described program can be stored in the computer-readable recording medium, and described storage medium can be ROM, RAM, magnetic disc, CD etc.
To sum up, the communication terminal that embodiment of the present invention provides and cell measuring method thereof and device have following beneficial effect at least:
During first communication module in communication terminal is in running order, detect by the state to other communication modules of often not using in the described communication terminal, when detecting other communication modules and be in idle condition, the control first communication module is by its corresponding antenna and the described common measurement that realizes Serving cell and neighbor cell thereof of antenna corresponding to communication module that is in idle condition, can when receiving the Serving cell signal, carry out different-frequency measure thus, and greatly increase the opportunity of measuring, thereby improved speed and the precision of cell measurement, and made by the performance of the cell reselection of measurement triggering and switching better.
With antenna receiving signal corresponding to other communication modules when carrying out cell measurement, by avoiding the shared time slot of antenna transmission signal corresponding to first communication module, improved thus the accuracy of cell measurement.
By adopting the mode of calibration, can avoid because of the inconsistent measured deviation that causes of the measurement result of an above antenna, thereby improve the precision of measuring.
Although the present invention with preferred embodiment openly as above; but it is not to limit the present invention; any those skilled in the art without departing from the spirit and scope of the present invention; can utilize method and the technology contents of above-mentioned announcement that technical solution of the present invention is made possible change and modification; therefore; every content that does not break away from technical solution of the present invention; to any simple modification, equivalent variations and modification that above embodiment does, all belong to the protection range of technical solution of the present invention according to technical spirit of the present invention.
Claims (25)
1. the cell measuring method of a communication terminal, described communication terminal comprises the first communication module that works under the first communication pattern and corresponding antenna thereof and works in communication module and corresponding antenna thereof under other communication patterns, it is characterized in that described cell measuring method comprises:
If the communication module that detects under other communication patterns is in idle condition, then controls described first communication module by its corresponding antenna and be in antenna reception Serving cell corresponding to the communication module of idle condition and the signal of neighbor cell thereof;
Based on the described signal that receives Serving cell and neighbor cell thereof are measured.
2. the cell measuring method of communication terminal according to claim 1, it is characterized in that the described first communication module of described control is by its corresponding antenna and be in antenna reception Serving cell corresponding to the communication module of idle condition and the signal of neighbor cell comprises:
Signal by antenna reception Serving cell corresponding to described first communication module;
By the communication module that is in idle condition corresponding antenna reception Serving cell and the signal of neighbor cell or the signal of described neighbor cell.
3. the cell measuring method of communication terminal according to claim 1, it is characterized in that, control the signal of described first communication module by antenna reception Serving cell corresponding to the communication module that is in idle condition or its neighbor cell and be in the time outside the antenna transmitted signal corresponding by described first communication module and carry out.
4. the cell measuring method of communication terminal according to claim 1 is characterized in that, described described signal based on receiving comprises Serving cell and neighbor cell measurement thereof:
Obtain calibration value corresponding to the residing frequency band of current reception signal;
With described calibration value the actual measured value of Serving cell and neighbor cell thereof is calibrated.
5. the cell measuring method of communication terminal according to claim 4 is characterized in that, described calibration value corresponding to the residing frequency band of current reception signal that obtain comprises:
Under glitch-free communication environment, the radiofrequency signal that launch in the preset signals source that receives by the antenna measurement corresponding with the communication module under other communication patterns of antenna corresponding to described first communication module respectively;
Calculate the measurement difference between the measurement result of the measurement result of antenna corresponding to the described first communication module antenna corresponding with the communication module under other communication patterns;
For each frequency band, obtain described measurement difference corresponding to a plurality of tranmitting frequencies;
With the mean value of measurement difference corresponding to the described a plurality of tranmitting frequencies calibration value as corresponding frequency band.
6. the cell measuring method of communication terminal according to claim 1, it is characterized in that, if the communication module that detects under other communication patterns enters operating state, then control described first communication module and stop by antenna reception Serving cell corresponding to the described communication module that enters operating state or the signal of its neighbor cell.
7. the cell measuring method of communication terminal according to claim 1 is characterized in that, the frequency band of the antenna that the communication module under other communication patterns is corresponding covers the frequency band of antenna corresponding to described first communication module.
8. the cell measuring method of communication terminal according to claim 1 is characterized in that, the mutually close setting of antenna that the antenna that the communication module under other communication patterns is corresponding is corresponding with described first communication module.
9. the cell measuring method of communication terminal according to claim 1 is characterized in that, described the first communication pattern is GSM, TD-SCDMA, WCDMA, CDMA2000 or LTE.
10. the cell measuring method of communication terminal according to claim 1 is characterized in that, other communication patterns comprise at least a in GPS communication pattern and the mobile TV communication pattern.
11. the cell measurement device of a communication terminal, described communication terminal comprise the first communication module that works under the first communication pattern and corresponding antenna thereof and work in communication module and corresponding antenna thereof under other communication patterns, it is characterized in that, comprising:
Detecting unit, whether the communication module that is suitable for detecting under other communication patterns is in idle condition;
Control unit, when being suitable for communication module under detecting other communication patterns and being in idle condition, control described first communication module by its corresponding antenna and be in antenna reception Serving cell corresponding to the communication module of idle condition and the signal of neighbor cell thereof;
Measuring unit is suitable for based on the described signal that receives Serving cell and neighbor cell thereof being measured.
12. the cell measurement device of communication terminal according to claim 11 is characterized in that, described control unit comprises:
The first control unit is suitable for controlling described first communication module by the signal of its corresponding antenna reception Serving cell;
The second control unit is suitable for controlling described first communication module by the communication module that is in idle condition corresponding antenna reception Serving cell and the signal of neighbor cell or the signal of described neighbor cell.
13. the cell measurement device of communication terminal according to claim 12, it is characterized in that it is to carry out in time outside the antenna transmitted signal corresponding by described first communication module that described the second control unit is controlled the signal of described first communication module by antenna reception Serving cell corresponding to the communication module that is in idle condition or its neighbor cell.
14. the cell measurement device of communication terminal according to claim 11 is characterized in that, described measuring unit comprises:
Acquiring unit is suitable for obtaining calibration value corresponding to the residing frequency band of current reception signal;
Alignment unit is suitable for described calibration value the actual measured value of Serving cell and neighbor cell thereof being calibrated.
15. the cell measurement device of communication terminal according to claim 11, it is characterized in that, when described control unit also is suitable for communication module under detecting other communication patterns and enters operating state, control described first communication module and stop to carry out the transmitting-receiving of signal by described antenna corresponding to communication module that enters operating state.
16. the cell measurement device of communication terminal according to claim 11, it is characterized in that, described first communication module comprises the first radio-frequency module and the first baseband module, described the first radio-frequency module comprises at least two radio frequency submodules, wherein antenna corresponding at least one described radio frequency submodule and the described communication module that is in idle condition is corresponding, and described control unit comprises:
The duplexer that links to each other with communication module under other communication patterns and corresponding antenna thereof;
With described duplexer and the controller that the first baseband module links to each other, be suitable for controlling described duplexer to be communicated with corresponding radio frequency submodule in antenna corresponding to the described communication module that is in idle condition and described the first radio-frequency module; Described controller also is suitable for controlling described the first baseband module and carries out cell measurement with the signal of each radio frequency submodule output.
17. the cell measurement device of communication terminal according to claim 16, it is characterized in that, described controller also is suitable for entering operating state when the communication module that detects under other communication patterns, controls described duplexer and is communicated with described communication module and the corresponding antenna thereof that enters operating state.
18. the cell measurement device of communication terminal according to claim 16 is characterized in that, described the first radio-frequency module links to each other by the first radio-frequency front-end antenna corresponding with described first communication module; Described control unit also comprises: the 3rd radio frequency front end that links to each other with described duplexer, be suitable for realizing antenna that communication module under other communication patterns is corresponding and the coupling between the described first communication module, described antenna corresponding to communication module that is in idle condition links to each other with corresponding radio frequency submodule in described the first radio-frequency module by the 3rd radio frequency front end.
19. the cell measurement device of communication terminal according to claim 16 is characterized in that described detecting unit is integrated in the described controller.
20. the cell measurement device of communication terminal according to claim 16 is characterized in that, described measuring unit is integrated in described the first baseband module.
21. the cell measurement device of communication terminal according to claim 11 is characterized in that the frequency band of the antenna that the communication module under other communication patterns is corresponding covers the frequency band of antenna corresponding to described first communication module.
22. the cell measurement device of communication terminal according to claim 11 is characterized in that, the antenna antenna mutually close setting corresponding with described first communication module that the communication module under other communication patterns is corresponding.
23. the cell measurement device of communication terminal according to claim 11 is characterized in that, described the first communication pattern is GSM, TD-SCDMA, WCDMA, CDMA2000 or LTE.
24. the cell measurement device of communication terminal according to claim 11 is characterized in that, other communication patterns comprise at least a in GPS communication pattern and the mobile TV communication pattern.
25. communication terminal, comprise the first communication module that works under the first communication pattern and corresponding antenna thereof and work in communication module and corresponding antenna thereof under other communication patterns, it is characterized in that, also comprise: each described cell measurement device of claim 11 to 24.
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