CN104954303B - Hand-held device and frequency tracking method - Google Patents
Hand-held device and frequency tracking method Download PDFInfo
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- CN104954303B CN104954303B CN201510120650.4A CN201510120650A CN104954303B CN 104954303 B CN104954303 B CN 104954303B CN 201510120650 A CN201510120650 A CN 201510120650A CN 104954303 B CN104954303 B CN 104954303B
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Abstract
The present invention provides at least one hand-held device and frequency tracking method.One of which hand-held device includes：Oscillator, for generating oscillator signal；Radio frequency chip is coupled to oscillator, and for based on paging signal of the oscillating signal reception from paging channel and the radiofrequency signal from unconventional channel；Modem module is coupled to radio frequency chip；First heat-sensitive sensor, is arranged near oscillator, for measuring heat source temperature；And heat-sensitive module, it is coupled to modem module and the first heat-sensitive sensor, and frequency compensation operation is executed using the combination of radiofrequency signal or paging signal and radiofrequency signal for enabling modem module according to heat source temperature.One of the advantages of the present invention is can in time to trigger modem module according to the variation of oscillator peripheral temperature and executes frequency compensated operation, effectively prevent modem channel reception failure caused by the larger frequency shift (FS) that the significantly change because of the temperature of oscillator brings.
Description
Technical field
The present invention is related hand-held device (handheld device) and its frequency tracking method.More specifically, of the invention
Hand-held device according to heat source temperature trigger modem module execute frequency compensation operation, with reduce by heat source (heat
The influence of oscillator caused by source) (oscillator) frequency shift (FS) (frequency offset).
Background technology
With the development of the communication technology, wireless handheld device is widely used in daily life.It is hand-held in order to meet
The compact design of device, it is difficult to avoid oscillator being arranged near base band (Baseband, BB) processor, and baseband processor
It is the very crucial heat source of hand-held device.
Since the frequency of oscillator is very sensitive for the variation of temperature, the large change of temperature is (for example, work as baseband processor
When becoming busy or closing) oscillator can be caused to generate larger frequency shift (FS).Frequency shift (FS) accumulation is waken up up to modem,
To receive the signal from paging channel (Paging Channel, PCH).However, current frequency tracking mechanism Jin Shiyong comes from
The periodic signal of paging channel can not handle larger frequency shift (FS), thus relevant modem channel receives
(modem channel reception) is possible to fail.
Correspondingly, in the art, larger frequency caused by the large change for solution by oscillator peripheral temperature
Offset, with the failure for preventing the associated modems channel caused by larger frequency shift (FS) from receiving, there are urgent demands.
Invention content
In view of this, the present invention provides at least one hand-held device and frequency tracking method.
Hand-held device according to an embodiment of the invention, including：Oscillator, for generating oscillator signal；Radio frequency (Radio
Frequency, RF) chip (chip), it is coupled to the oscillator, and for believing from paging based on the oscillating signal reception
The paging signal in road and the radiofrequency signal for coming from unconventional (non-regular) channel；Modem module is coupled to institute
State radio frequency chip；First heat-sensitive sensor (thermal sensor), is arranged near the oscillator, and for measuring heat source
Temperature；And heat-sensitive module (thermal module), it is coupled to the modem module and first heat-sensitive sensor
Device, and for according to the heat source temperature, enable (enable) described modem module using the radiofrequency signal or
The combination of the paging signal and the radiofrequency signal executes frequency compensation operation.
A kind of frequency tracking method according to another embodiment of the present invention, is used for hand-held device, and the hand-held device includes
Oscillator, radio frequency chip, modem module, the first heat-sensitive sensor and heat-sensitive module, the radio frequency chip is for being based on
Paging signal of the oscillating signal reception from paging channel and the radiofrequency signal from unconventional channel that the oscillator generates,
First heat-sensitive sensor is arranged in the oscillator nearby and for measuring heat source temperature, and the frequency tracking method is by institute
It states performed by heat-sensitive module, the frequency tracking method includes：(a) the heat source temperature is read by first heat-sensitive sensor
Degree；And it (b) enables the modem module according to the heat source temperature and uses the radiofrequency signal or the paging
The combination of signal and the radiofrequency signal executes frequency compensation operation.
Hand-held device and frequency tracking method provided by the present invention, one of advantage is can be according to oscillator periphery temperature
The variation of degree triggers modem module and executes frequency compensated operation in time, thus can be effectively prevented because of oscillator
The failure that relevant modem channel receives caused by the larger frequency shift (FS) that the significantly change of temperature is brought so that hand
Holding device has higher communication stability.
Description of the drawings
Figure 1A is the schematic diagram according to the hand-held device 1 of first embodiment of the invention.
Figure 1B is the schematic diagram according to the hand-held device 1 of another embodiment of the present invention.
Fig. 2A is the schematic diagram according to the hand-held device 2 of second embodiment of the invention.
Fig. 2 B are the schematic diagram according to the hand-held device 2 of another embodiment of the present invention.
Fig. 3 A are the schematic diagram according to the hand-held device 3 of third embodiment of the invention.
Fig. 3 B are the schematic diagram according to the hand-held device 3 of another embodiment of the present invention.
Fig. 4 is the flow chart according to the frequency tracking method of first embodiment of the invention and fourth embodiment.
Fig. 5 is another flow chart according to the frequency tracking method of first embodiment of the invention and fourth embodiment.
Fig. 6 A and Fig. 6 B show the flow with the frequency tracking method of the 5th embodiment according to a second embodiment of the present invention
Figure.
Fig. 7 A and Fig. 7 B are the flow chart according to the frequency tracking method of third embodiment of the invention and sixth embodiment.
Specific implementation mode
Some vocabulary has been used in specification and claim to censure specific component.Those skilled in the art answer
It is understood that hardware manufacturer may call the same component with different nouns.This specification and claims not with
The difference of title is used as the mode for distinguishing component, but is used as the criterion of differentiation with the difference of component functionally.Logical
The "comprising" and " comprising " of specification and claim mentioned in are an open term, thus should be construed to " include
But it is not limited to "." substantially " refer in acceptable error range, those skilled in the art can be within a certain error range
The technical problem is solved, the technique effect is basically reached.In addition, " coupling " word includes any directly and indirect herein
Means of electrical connection.Therefore, if it is described herein that a first device is coupled to a second device, then representing the first device can be direct
It is electrically connected at the second device, or the second device is electrically connected to indirectly by other devices or connection means.Below
The preferred mode to implement of the invention, it is therefore intended that illustrate the spirit of the present invention rather than to limit the protection model of the present invention
It encloses, protection scope of the present invention is when subject to appended claims institute defender.
The first embodiment of the present invention is as shown in Figure 1A, and Figure 1A is the hand-held device 1 according to first embodiment of the invention
Schematic diagram.Hand-held device 1 includes oscillator 101, radio frequency chip 103, modem module 105, the first heat-sensitive sensor 107
And heat-sensitive module 109.Hand-held device 1 can be smart mobile phone, tablet computer, or has communication function and meet the second generation
Any other dress of (2G) mobile communication standard, the third generation (3G) mobile communication standard and forth generation (4G) mobile communication standard
It sets.Note that for purpose of brevity, other components of hand-held device 1, such as display module, Anneta module, power module and with this hair
The less component of bright correlation, is omitted herein.
Oscillator 101 is used to generate the oscillator signal 102 with frequency of oscillation.More specifically, oscillator 101 can be brilliant
Oscillation body device (crystal oscillator) or frequency synthesizer (frequency synthesizer), for example, it is digital control
Oscillator (Digitally Controlled Oscillator, DCXO), and be arranged near heat source (for example, processor).
Under this situation, heat caused by heat source will cause the frequency of oscillator 101 to change with the variation of temperature.
Radio frequency chip 103 is coupled to oscillator 101, and is operated based on oscillator signal 102, to receive on special frequency band
Radiofrequency signal.In general, radio frequency chip 103 periodically receives paging signal 104 from paging channel, for frequency
Purpose is tracked, and receives the radiofrequency signal 106 from other unconventional channels, is passed for the data except frequency tracking purpose
The purpose of defeated, communication control.
For example, when hand-held device 1 meets 2G mobile communication standards, unconventional channel includes broadcast control channel
(Broadcast Control Channel, BCCH), frequency correction control channel (Frequency Correction
Control Channel, FCCH), synchronizing channel (Synchronization Channel, SCH), Cell Broadcast Channel (Cell
Broadcast Channel, CBCH), allow access control channel (Access Grant Control Channel, AGCH) and
Notify channel (Notification Channel, NCH).In addition, when hand-held device 1 meets 3G mobile communication standards, very
It includes CPICH Common Pilot Channel (Common Pilot Channel, CPICH), Primary Common Control Physical Channel to advise channel
(Primary-Common Control Physical Channel, P-CCPCH), secondary Common Control Physical Channel
(Secondary-Common Control Physical Channel, S-CCPCH), synchronizing channel (Synchronization
Channel, SCH), Acquisition Indicator Channel (Acquisition Indicator Channel, AICH) and Page Indication Channel
(Paging Indicator Channel,PICH).And when hand-held device 1 meets 4G mobile communication standards, unconventional letter
Road includes Physical Broadcast Channel (Physical Broadcast Channel, PBCH), the more wave channel (Physical of physics
Multicast Channel, PMCH), Physical Control Format Indicator Channel (Physical Control Format
Indicator Channel, PCFICH), physical hybrid automatic repeat request indicator channel (Physical Hybrid ARQ
Indicator Channel, PHICH), Physical Downlink Control Channel (Physical Downlink Control Channel,
) and Physical Downlink Shared Channel (Physical Downlink Shared Channel, PDSCH) PDCCH.
Modem module 105 is coupled to radio frequency chip 103 and heat-sensitive module 109.First heat-sensitive sensor 107 couples
It in heat-sensitive module 109, and is arranged near oscillator 101, to measure the heat source temperature on 101 periphery of oscillator.In another implementation
In example, the first heat-sensitive sensor 107 can be positioned on oscillator 101.The position of first heat-sensitive sensor 107 can be according to reality
It moves and changes, be not limited to the scope of the present invention.Heat-sensitive module 109 reads heat source from the first heat-sensitive sensor 107
Temperature, and according to heat source temperature enable modem module 105 using from PCH paging signal 104 and from one or
The radiofrequency signal 106 of multiple unconventional channels executes frequency compensation operation.It note that one skilled in the art can be light
It is readily understood, according to actual design, modem module 105 can by using from a unconventional channel or it is multiple very
The radiofrequency signal for advising channel executes frequency compensation operation, and therefore, the number of unconventional channel is not to limit the present invention.
For example, heat-sensitive module 109 can calculate the rate of temperature change of heat source temperature, and when rate of temperature change is more than first threshold
When, it enables modem module 105 and executes frequency compensation operation using paging signal 104 and radiofrequency signal 106.First threshold
It is the frequency shift (FS) characteristic (that is, relationship between frequency shift (FS) and temperature change) based on oscillator and preset.
More specifically, significantly risen in the time interval between two continuous paging signals 104 when heat source temperature or
When person declines, for modem module 105, it is difficult to it is accurate to be based only upon the paging signal 104 operated for frequency compensation
Really estimate that larger frequency shift (FS), or the oscillator frequency based on offset receive (in-band) radiofrequency signal in band.Therefore,
Relevant modem channel reception can fail.For the failure for preventing relevant modem channel from receiving, the present invention into
One step observes heat source temperature, and in addition uses radio frequency of the reception than paging signal 104 more frequently from unconventional channel
Signal 106 operates for frequency compensation.
It note that in practical operation, in the case where oscillator 101 is frequency synthesizer, frequency compensation operation can lead to
It crosses signal processing and/or adjusts the frequency of oscillation of oscillator 101 to realize.How to be synthesized by signal processing and/or oscillator
The adjustment of the frequency of oscillation of device operates to execute frequency compensation by as it is known to those skilled in the art that therefore, no longer go to live in the household of one's in-laws on getting married herein
It states.
Figure 1B is the schematic diagram according to the hand-held device 1 of another embodiment of the present invention.In another embodiment shown in Figure 1B,
Heat-sensitive module 109 enables modem module 105 using only radiofrequency signal 106 to execute frequency compensation behaviour according to heat source temperature
Make.In the present embodiment, heat-sensitive module 109 triggers modem module 105 and is used by the way that the substitution of radiofrequency signal 106 is used only
The combination of paging signal 104 and radiofrequency signal 106 carrys out track frequency offset, this is because continually received from one or more non-
The radiofrequency signal 106 of normal channel is enough compensating frequency deviation in time.Based on foregoing description, those skilled in the art can be easily
Understand how heat-sensitive module 109 is used only the triggering modem module 105 of radiofrequency signal 106 and is deviated with track frequency, thus
Details are not described herein again.
The second embodiment of the present invention is as shown in Figure 2 A, and Fig. 2A is the hand-held device 2 according to second embodiment of the invention
Schematic diagram.In the present embodiment, hand-held device 2 further includes baseband processor 201 and the second heat-sensitive sensor 203, wherein
Baseband processor 201 is instead of the heat-sensitive module 109 in first embodiment.In other words, baseband processor 201 can play and temperature-sensitive
109 identical effect of module.First heat-sensitive sensor 107 is coupled to baseband processor 201, and is arranged near oscillator 101.
Second heat-sensitive sensor 203 is coupled to baseband processor 201 and is used for measuring environment temperature (ambient
Temperature), for example, far from the temperature at heat source.Baseband processor 201 once starts, you can from the first heat-sensitive sensor
107 read heat source temperature, and determine whether baseband processor 201 will close.If for example, not over physics in a period of time
The input signal of other input modules input of button, touch panel or hand-held device 2, then due to this present hand-held device of expression
2 are not user-operably, and baseband processor 201 determines that baseband processor 201 will close.
When baseband processor 201 will not be closed, baseband processor 201 calculates the rate of temperature change of heat source temperature,
And whether temperature change rate is more than first threshold.Later, when rate of temperature change is more than first threshold, baseband processor
201 enabled modem modules 105 execute frequency compensation using paging signal 104 and radiofrequency signal 106 and operate.
On the contrary, when baseband processor 201 will close, baseband processor 201 is read from Secondary Heat Source sensor 203
Environment temperature.Then, baseband processor 201 calculates the temperature difference between heat source temperature and environment temperature, and determines whether the temperature difference is big
In second threshold.And when the temperature difference is more than second threshold, baseband processor 201 enables 105 use of modem module and seeks
Signal 104 and radiofrequency signal 106 is exhaled to execute frequency compensation operation.
More specifically, present embodiment assumes that baseband processor 201 is arranged near oscillator 101, thus baseband processor
Becoming a crucial heat source for oscillator 101, the first heat-sensitive sensor 107 is equally arranged near oscillator 101, or
Person is optionally arranged on baseband processor 201.In this case, when baseband processor 201 become busy (busy) or
When baseband processor 201 is just closed, the temperature on 101 periphery of oscillator will will appear significant changes.Pass through above-mentioned mechanism, nothing
Starting state (on-state) or closed state (off-state) are in (that is, baseband processor 201 starts by hand-held device 2
Or close) modem module 105 can trigger in time with execute frequency compensation operation, to prevent relevant tune
Modulator-demodulator channel fails caused by due to receive caused by the significantly change of the temperature of oscillator 101 larger frequency shift (FS).
Similarly, Fig. 2 B are the schematic diagram according to the hand-held device 2 of another embodiment of the present invention.In the present embodiment, base
Provided with processor 201 trigger modem module 105 by be used only radiofrequency signal 106 substitution using paging signal 104 with penetrate
The combination of frequency signal 106 carrys out track frequency offset.As noted previously, as continually received from one or more unconventional channels
Radiofrequency signal 106 is enough compensating frequency deviation in time, thus in the frequency tracking mechanism of the application, paging signal 104
It is optionally.
Please refer to Fig.3 third embodiment of the invention shown in A.Fig. 3 A are the hand-held device 3 according to third embodiment of the invention
Schematic diagram.Different from the hand-held device 1 in first embodiment, hand-held device 3 further includes baseband processor 303 and second
Heat-sensitive sensor 203, wherein baseband processor 303 and the second heat-sensitive sensor 203 are coupled to heat-sensitive module 109.
In addition, the present embodiment also assumes that baseband processor 303 is arranged near oscillator 101, thus baseband processor pair
For oscillator 101 become a crucial heat source, and the first heat-sensitive sensor 107 be arranged in oscillator 101 nearby or can
It is selectively arranged on baseband processor 303.In this case, when baseband processor 303 becomes busy or at base band
When managing the closing of device 303, significant changes will occur for the peripheral temperature of oscillator 101.
Baseband processor 303 determines whether baseband processor 303 will close, and heat sensitive module 109 sends instruction letter
Numbers 302.When indication signal 302 indicates that baseband processor 303 will not close, heat-sensitive module 109 calculates the temperature of heat source temperature
Change rate is spent, and whether temperature change rate is more than first threshold.Hereafter, when rate of temperature change is more than first threshold, heat
Quick module 109 enables modem module 105 and executes frequency compensation operation using paging signal 104 and radiofrequency signal 106.
On the contrary, when indication signal 302 indicates that baseband processor 303 will close, heat-sensitive module 301 calculates heat source temperature
The temperature difference between degree and environment temperature, and determine whether the temperature difference is more than second threshold.And when the temperature difference is more than second threshold,
Heat-sensitive module 301 enables modem module 105 and executes frequency compensation operation using paging signal 104 and radiofrequency signal 106.
Similarly, Fig. 3 B are the schematic diagram according to the hand-held device 3 of another embodiment of the present invention.In the present embodiment, hot
Quick module 109 triggers modem module 105 and uses paging signal 104 and radio frequency by the way that the substitution of radiofrequency signal 106 is used only
The combination of signal 106 carrys out track frequency offset, this is because the continually radio frequency letter received from one or more unconventional channels
Numbers 106 are enough compensating frequency deviation in time.
Fig. 4 is the flow chart according to the frequency tracking method of first embodiment of the invention and fourth embodiment.The present embodiment
In frequency tracking method be suitable for hand-held device, for example, hand-held device 1 described in first embodiment.Hand-held device includes to shake
Swing device, radio frequency chip, modem module, the first heat-sensitive sensor and heat-sensitive module.Radio frequency chip is used for based on oscillation letter
Number receive the paging signal from PCH and the radiofrequency signal from unconventional channel, wherein the oscillator signal has oscillator institute
The frequency of oscillation of generation.First heat-sensitive sensor is arranged near oscillator, and for measuring heat source temperature.
Frequency tracking method is executed by heat-sensitive module.First, step 401 is executed to read heat source from the first heat-sensitive sensor
Temperature.Then, in step 403, according to heat source temperature, heat-sensitive module enables modem module and using radiofrequency signal or seeks
The combination of signal and radiofrequency signal is exhaled to execute frequency compensation operation.
For example, in another embodiment, step 403 can further include step 4031 shown in fig. 5 and step 4033.Figure
5 is according to another flow charts of the frequency tracking method of first embodiment of the invention and fourth embodiment.Execute step 4031 with
Calculate the rate of temperature change of heat source temperature.Then, when rate of temperature change is more than first threshold, step 4033 is executed to enable tune
Modulator-demodulator module is operated using the combination of radiofrequency signal or paging signal and radiofrequency signal to execute frequency compensation.Therefore, it adjusts
Modulator-demodulator module can be triggered in time to execute frequency compensation operation, to prevent relevant modem channel from receiving
Failure.
Other than above-mentioned steps, the frequency tracking method of the present embodiment also can perform all operations in first embodiment with
Corresponding function.Explanation based on first embodiment, those skilled in the art can be readily appreciated that how the present embodiment executes these
Operation and function, thus details are not described herein again.
Fig. 6 A and Fig. 6 B show the flow with the frequency tracking method of the 5th embodiment according to a second embodiment of the present invention
Figure.The frequency tracking method is suitable for hand-held device, for example, the hand-held device 2 in second embodiment.Hand-held device includes oscillation
Device, radio frequency chip, modem module, baseband processor, the first heat-sensitive sensor and the second heat-sensitive sensor.
The frequency tracking method is executed by baseband processor.First, as shown in Figure 6A, in step 601, baseband processor
Heat source temperature is read from the first heat-sensitive sensor, and environment temperature is read from the second heat-sensitive sensor.Then, in step 603,
Baseband processor determines whether baseband processor will close.If baseband processor will not close, then execute step 605 with
Calculate the rate of temperature change of heat source temperature.Then, in step 607, whether baseband processor temperature change rate is more than the
One threshold value.Hereafter, in step 607, if rate of temperature change is more than first threshold, 609 are thened follow the steps to enable modulation /demodulation
Device module executes frequency compensation using the combination of radiofrequency signal or paging signal and radiofrequency signal and operates.
On the other hand, in step 603, if baseband processor will close, then executing step 611 to calculate heat source temperature
The temperature difference between degree and environment temperature.Then, in step 613, baseband processor further determines that whether the temperature difference is more than second
Threshold value.Hereafter, in step 613, if the temperature difference is more than second threshold, then executing step 615 to enable modem module
It is operated using the combination of radiofrequency signal or paging signal and radiofrequency signal to execute frequency compensation.Therefore, no matter temperature change
Rate is more than first threshold (when baseband processor will not close) or the temperature difference is more than second threshold (when baseband processor will
When closing), the present invention can trigger modem module in time, to prevent due to the significantly change of oscillator peripheral temperature
Caused by the failure that receives of relevant modem channel.
In addition, as shown in Figure 6A, if rate of temperature change is not more than first threshold in step 607, or executing step
After 609, then frequency tracking method further returns to step 601.In addition, as shown in Figure 6B, if the temperature difference in step 613
No more than second threshold, or after step 615, then baseband processor is closed in a short time.When baseband processor again
When startup, step 601 is executed again.
Other than above-mentioned steps, the frequency tracking method of the present embodiment also can perform all operations in second embodiment with
Corresponding function.Explanation based on second embodiment, those skilled in the art can be readily appreciated that how the present embodiment executes these
Operation and function, thus details are not described herein again.
Please refer to sixth embodiment of the invention in Fig. 7 A and Fig. 7 B.Fig. 7 A and Fig. 7 B be according to third embodiment of the invention with
The flow chart of the frequency tracking method of sixth embodiment.Frequency tracking method in the present embodiment is suitable for hand-held device, for example,
Hand-held device 3 described in 3rd embodiment.Hand-held device includes oscillator, radio frequency chip, modem module, Base-Band Processing
Device, the first heat-sensitive sensor and the second heat-sensitive sensor.Frequency tracking method in the present embodiment is executed by heat-sensitive module.
In step 701, heat-sensitive module reads heat source temperature from the first heat-sensitive sensor, and is read from the second heat-sensitive sensor
Take environment temperature.Then, in step 703, heat-sensitive module calculates the rate of temperature change of heat source temperature.Then, in step 705
In, heat-sensitive module determines whether to receive the indication signal from baseband processor.The indication signal indicates that baseband processor is
It is no to close, so that heat-sensitive module can execute following step according to indication signal.Baseband processor is come from when receiving
Indication signal after, heat-sensitive module execute step 707 to determine whether indication signal indicates that baseband processor will close.If referring to
Show that signal designation baseband processor will not close, then heat-sensitive module executes step 709 is to further determine that rate of temperature change
It is no to be more than first threshold；Otherwise, heat-sensitive module 301 executes the step 713 in Fig. 7 B.
Then, if rate of temperature change is more than first threshold in step 709, then executing step 711 to enable modulatedemodulate
Device module is adjusted to be operated using the combination of radiofrequency signal or paging signal and radiofrequency signal to execute frequency compensation.
On the other hand, if being indicated in step 707, signal designation baseband processor will close, then heat-sensitive module 301
Step 713 is executed to calculate the temperature difference between heat source temperature and environment temperature.Then, in a step 715, heat-sensitive module 301 into
One step confirms whether the temperature difference is more than second threshold.If in a step 715 the temperature difference be more than second threshold, then execute step 717 with
Enabled modem module is operated using the combination of radiofrequency signal or paging signal and radiofrequency signal to execute frequency compensation.
If in addition, the indication signal of heat-sensitive module is not sent to from baseband signal in step 705, if in step 709
Middle temperature difference change rate is not more than first threshold, or after step 711, then frequency tracking method, which is back to, executes step 701.
If in addition, the temperature difference is not more than second threshold in a step 715, or after step 717, frequency tracking method also may return to and hold
Row step 701.
Other than above-mentioned steps, the frequency tracking method of the present embodiment also can perform all operations in 3rd embodiment with
Corresponding function.Explanation based on 3rd embodiment, those skilled in the art can be readily appreciated that how the present embodiment executes these
Operation and function, thus details are not described herein again.
According to foregoing description, frequency tracking mechanism of the invention can in time be touched according to the temperature change on oscillator periphery
The modem module of hand-held device is sent out to execute frequency compensation operation.Therefore, the present invention can be effectively prevented because of oscillator
Temperature the larger frequency shift (FS) that brings of significantly change caused by the failure that receives of relevant modem channel.Cause
This, hand-held device of the invention has higher communication stability.
Although the present invention has been disclosed as a preferred embodiment, however, it is not to limit the invention, any to be familiar with this skill
Skill person, without departing from the spirit and scope of the present invention, when can make some changes and embellishment, therefore protection scope of the present invention
When subject to appended claims institute defender.
Claims (16)
1. a kind of hand-held device, which is characterized in that include：
Oscillator, for generating oscillator signal；
Radio frequency chip is coupled to the oscillator, and for based on paging letter of the oscillating signal reception from paging channel
Number and the radiofrequency signal from unconventional channel；
Modem module is coupled to the radio frequency chip；
First heat-sensitive sensor is arranged near the oscillator, and the heat source temperature for measuring the oscillator periphery；With
And
Second heat-sensitive sensor, for measuring far from the environment temperature at heat source；
Baseband processor is coupled to the modem module, first heat-sensitive sensor and second heat-sensitive sensor
Device, when the baseband processor will close, calculates the heat source for determining whether the baseband processor will close
The temperature difference between temperature and the environment temperature, determines whether the temperature difference is more than threshold value, and when the temperature difference is more than the threshold
When value, enables the modem module and use the radiofrequency signal or the group of the paging signal and the radiofrequency signal
It closes and executes frequency compensation operation.
2. hand-held device according to claim 1, which is characterized in that when the baseband processor will not close, institute
The rate of temperature change that baseband processor calculates the heat source temperature is stated, and whether temperature change rate is more than first threshold, when
When the rate of temperature change is more than the first threshold, the baseband processor enables described in the modem module execution
Frequency compensation operates.
3. hand-held device according to claim 1, which is characterized in that when the hand-held device meets 2G mobile communication standards
When, the unconventional channel is broadcast control channel, frequency correction control channel, synchronizing channel, Cell Broadcast Channel and permission
Channel is accessed, notifies one in channel.
4. hand-held device according to claim 1, which is characterized in that when the hand-held device meets 3G mobile communication standards
When, the unconventional channel is CPICH Common Pilot Channel, Primary Common Control Physical Channel, secondary Common Control Physical Channel, synchronous letter
One in road, Acquisition Indicator Channel and Page Indication Channel.
5. hand-held device according to claim 1, which is characterized in that the unconventional channel is Physical Broadcast Channel, object
Manage Multicast Channel, Physical Control Format Indicator Channel, physical hybrid automatic repeat request indicator channel, Physical Downlink Control Channel
And one in Physical Downlink Shared Channel.
6. hand-held device according to claim 1, which is characterized in that the oscillator be crystal oscillator with it is digital control
One in oscillator.
7. a kind of hand-held device, which is characterized in that include：
Oscillator, for generating oscillator signal；
Radio frequency chip is coupled to the oscillator, and for based on paging letter of the oscillating signal reception from paging channel
Number and the radiofrequency signal from unconventional channel；
Modem module is coupled to the radio frequency chip；
First heat-sensitive sensor is arranged near the oscillator, and the heat source temperature for measuring the oscillator periphery；With
And
Second heat-sensitive sensor, for measuring far from the environment temperature at heat source；
Heat-sensitive module is coupled to the modem module, first heat-sensitive sensor and second heat-sensitive sensor；
Baseband processor is coupled to the heat-sensitive module, for determining whether the baseband processor will close, and to described
Heat-sensitive module sends indication signal；
When the indication signal indicates that the baseband processor will close, the heat-sensitive module calculate the heat source temperature with
The temperature difference between the environment temperature, and determine whether the temperature difference is more than threshold value, when the temperature difference is more than the threshold value, institute
It states heat-sensitive module and enables the modem module and believed using the radiofrequency signal or the paging signal and the radio frequency
Number combination execute frequency compensation operation.
8. hand-held device according to claim 7, which is characterized in that when the indication signal indicates the baseband processor
When will not close, the heat-sensitive module calculates the rate of temperature change of the heat source temperature, whether determines the rate of temperature change
More than first threshold, and when the rate of temperature change is more than the first threshold, the heat-sensitive module enables the modulatedemodulate
Device module is adjusted to execute the frequency compensation operation.
9. a kind of frequency tracking method, which is characterized in that be used for hand-held device, the hand-held device includes oscillator, radio frequency core
Piece, modem module, the first heat-sensitive sensor, the second heat-sensitive sensor and baseband processor, the radio frequency chip are used for
Paging signal of the oscillating signal reception from paging channel and the radio frequency from unconventional channel generated based on the oscillator
Signal, first heat-sensitive sensor are arranged in the oscillator nearby and the heat source temperature for measuring the oscillator periphery
Degree, second heat-sensitive sensor are used to measure the environment temperature far from heat source；The frequency tracking method is by the base band
Performed by processor, the frequency tracking method includes：
(a) heat source temperature is read by first heat-sensitive sensor；The environment is read by second heat-sensitive sensor
Temperature；And
(b) determine whether the baseband processor will close；And
When the baseband processor will close, the temperature difference between the heat source temperature and the environment temperature is calculated；
Determine whether the temperature difference is more than threshold value；And
When the temperature difference is more than the threshold value, the modem module is enabled using the radiofrequency signal or described is sought
The combination of signal and the radiofrequency signal is exhaled to execute frequency compensation operation.
10. frequency tracking method according to claim 9, which is characterized in that the step (b) further includes：Work as institute
When stating baseband processor will not close, the rate of temperature change of the heat source temperature is calculated, and whether temperature change rate is big
In first threshold, when the rate of temperature change is more than the first threshold, enable described in the modem module execution
Frequency compensation operates.
11. frequency tracking method according to claim 9, which is characterized in that lead to when the hand-held device meets 2G movements
Beacon is punctual, and the unconventional channel is broadcast control channel, frequency correction control channel, synchronizing channel, Cell Broadcast Channel
And allow to access channel, notify one in channel.
12. frequency tracking method according to claim 9, which is characterized in that lead to when the hand-held device meets 3G movements
Beacon is punctual, the unconventional channel be CPICH Common Pilot Channel, Primary Common Control Physical Channel, secondary Common Control Physical Channel,
One in synchronizing channel, Acquisition Indicator Channel and Page Indication Channel.
13. frequency tracking method according to claim 9, which is characterized in that the unconventional channel is believed for physical broadcast
Road, Physical Multicast Channel, Physical Control Format Indicator Channel, physical hybrid automatic repeat request indicator channel, physical down control
One in channel and Physical Downlink Shared Channel processed.
14. frequency tracking method according to claim 9, which is characterized in that the oscillator is crystal oscillator and number
Word controls one in oscillator.
15. a kind of frequency tracking method, which is characterized in that be used for hand-held device, the hand-held device includes oscillator, radio frequency core
Piece, modem module, the first heat-sensitive sensor, the second heat-sensitive sensor, heat-sensitive module and baseband processor, the radio frequency
Paging signal of the oscillating signal reception that chip is used to generate based on the oscillator from paging channel and from unconventional letter
The radiofrequency signal in road, first heat-sensitive sensor are arranged in the oscillator nearby and for measuring the oscillator periphery
Heat source temperature, second heat-sensitive sensor are used to measure the environment temperature far from heat source；The frequency tracking method is by institute
It states performed by heat-sensitive module, the frequency tracking method includes：
(a) heat source temperature is read by first heat-sensitive sensor；The environment is read by second heat-sensitive sensor
Temperature；And
(b) determine whether the baseband processor will close；And
After receiving the indication signal that the instruction baseband processor from the baseband processor will close, institute is calculated
State the temperature difference between heat source temperature and the environment temperature；
Determine whether the temperature difference is more than threshold value；And
When the temperature difference is more than the threshold value, the modem module is enabled using the radiofrequency signal or described is sought
The combination of signal and the radiofrequency signal is exhaled to execute frequency compensation operation.
16. frequency tracking method according to claim 15, which is characterized in that the step (b) further includes：
After receiving the indication signal that the instruction baseband processor from the baseband processor will not close, calculate
The rate of temperature change of the heat source temperature；
Determine whether the rate of temperature change is more than first threshold；And
When the rate of temperature change is more than the first threshold, enables the modem module and execute the frequency compensation
Operation.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201461971906P | 2014-03-28 | 2014-03-28 | |
| US61/971,906 | 2014-03-28 | ||
| US14/587,128 | 2014-12-31 | ||
| US14/587,128 US9531387B2 (en) | 2014-03-28 | 2014-12-31 | Handheld device and frequency tracking method thereof |
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| CN104954303A CN104954303A (en) | 2015-09-30 |
| CN104954303B true CN104954303B (en) | 2018-09-07 |
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| CN109873636B (en) * | 2019-03-27 | 2023-05-05 | 维沃移动通信有限公司 | Frequency adjustment method and mobile terminal |
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| CN1531296A (en) * | 2003-03-12 | 2004-09-22 | 日本电气株式会社 | Frequency calibrating method and device for long period of variation |
| CN101399577A (en) * | 2007-09-28 | 2009-04-01 | 大唐移动通信设备有限公司 | Mobile communication terminal and crystal oscillator parameter calibrating method thereof |
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| CN101796728B (en) * | 2007-07-31 | 2012-10-10 | 松下电器产业株式会社 | Oscillator, and receiving device and electronic device using the oscillator |
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| US9667280B2 (en) * | 2010-09-24 | 2017-05-30 | Qualcomm Incorporated | Methods and apparatus for touch temperature management based on power dissipation history |
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| CN1531296A (en) * | 2003-03-12 | 2004-09-22 | 日本电气株式会社 | Frequency calibrating method and device for long period of variation |
| CN101796728B (en) * | 2007-07-31 | 2012-10-10 | 松下电器产业株式会社 | Oscillator, and receiving device and electronic device using the oscillator |
| CN101399577A (en) * | 2007-09-28 | 2009-04-01 | 大唐移动通信设备有限公司 | Mobile communication terminal and crystal oscillator parameter calibrating method thereof |
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