CN107659954A - A kind of terminal communication management method and device, mobile terminal - Google Patents
A kind of terminal communication management method and device, mobile terminal Download PDFInfo
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- CN107659954A CN107659954A CN201610589704.6A CN201610589704A CN107659954A CN 107659954 A CN107659954 A CN 107659954A CN 201610589704 A CN201610589704 A CN 201610589704A CN 107659954 A CN107659954 A CN 107659954A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/08—Testing, supervising or monitoring using real traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/0231—Traffic management, e.g. flow control or congestion control based on communication conditions
- H04W28/0236—Traffic management, e.g. flow control or congestion control based on communication conditions radio quality, e.g. interference, losses or delay
Abstract
The embodiments of the invention provide a kind of terminal communication management method and device, mobile terminal；This method includes：Communication data in radio-frequency channel to be analyzed is acquired, obtains sampled data；According to sampled data, judge that radio-frequency channel to be analyzed is disturbed with the presence or absence of wireless lan signal, and export the interference judged result of radio-frequency channel to be analyzed；According to the interference judged result of each radio-frequency channel to be analyzed, management terminal communications.Pass through the implementation of the embodiment of the present invention, when WIFI interference be present in certain radio-frequency channel, communicated without using this radio-frequency channel, the interference of radio-frequency channel can thus be evaded in mobile terminal side, solves the problems, such as the existing usage experience for interfering, enhancing user during existing two kinds of coexistence of communication systems of LTE＆WLAN.
Description
Technical field
The present invention relates to the communications field, more particularly to a kind of terminal communication management method and device, mobile terminal.
Background technology
Existing terminal typically all supports LTE (long evolving system) and WLAN (WLAN), such as WIFI
(WIreless-Fidelity, wireless fidelity network) etc. so that user can select communication network as needed.But in reality
In the application of border, when LTE＆WLAN (referring mainly to WIFI＆BT) two kinds of coexistence of communication systems, because LTEB40 frequency ranges (2300M-
2400M) close with WIFI frequency ranges (2400M-2480M), under its working condition, band stray caused by both has mutually dry
Disturb.Such as in the case where opening WIFI, it is possible to receptivity deterioration is produced to the LTEB40 cellular systems of normal work,
Data throughput rate is caused to reduce；Conversely, under the normal running conditions of LTEB40 channels, evil will also result in WLAN throughput
Changing influences.
The content of the invention
The embodiments of the invention provide a kind of terminal communication management method and device, mobile terminal, to solve existing LTE＆
Existing the problem of interfering during two kinds of coexistence of communication systems of WLAN.
On the one hand, there is provided a kind of terminal communication management method, including：
Communication data in radio-frequency channel to be analyzed is acquired, obtains sampled data；
According to sampled data, judge that radio-frequency channel to be analyzed is disturbed with the presence or absence of wireless lan signal, and export and treat point
The interference judged result of radio-frequency channel is analysed, interference judged result includes interference being present and in the absence of interference；
According to the interference judged result of each radio-frequency channel to be analyzed, management terminal communications.
On the one hand, there is provided a kind of terminal Communications Management Units, including：
Sampling module, for being acquired to communication data in radio-frequency channel to be analyzed, obtain sampled data；
Judge module, for according to sampled data, judging that radio-frequency channel to be analyzed is done with the presence or absence of wireless lan signal
Disturb, and export the interference judged result of radio-frequency channel to be analyzed, interference judged result includes interference being present and in the absence of interference；
Management module, for the interference judged result according to each radio-frequency channel to be analyzed, management terminal communications.
On the one hand, there is provided a kind of mobile terminal, including communication module, processor and memory, wherein,
Communication module is used to receive communication data；
The communication data that processor is used to receive communication module in radio-frequency channel to be analyzed is acquired, and is sampled
Data；According to sampled data, judge that radio-frequency channel to be analyzed is disturbed with the presence or absence of wireless lan signal, and export to be analyzed penetrate
The interference judged result of frequency channel, interference judged result include interference being present and in the absence of interference；Believed according to each radio frequency to be analyzed
The interference judged result in road, management communication module work；
Memory is used for the interference judged result for storing each radio-frequency channel to be analyzed.
On the other hand, there is provided a kind of computer-readable storage medium, be stored with computer in computer-readable storage medium and can perform
Instruction, computer executable instructions are used to perform foregoing terminal communication management method.
The beneficial effect of the embodiment of the present invention：
The embodiments of the invention provide a kind of terminal communication management method, this method is in mobile terminal side to same radio-frequency channel
Sample detecting is carried out, to judge each radio-frequency channel with the presence or absence of the interference such as WIFI, and exports interference judged result, thus can be with
Terminal communication is managed according to the interference judged result of each radio-frequency channel, for example, when certain radio-frequency channel has WIFI interference
When, communicated without using this radio-frequency channel, the interference of radio-frequency channel can thus be evaded in mobile terminal side,
Solves the problems, such as the use body for interfering, enhancing user existing during existing two kinds of coexistence of communication systems of LTE＆WLAN
Test.
Brief description of the drawings
Fig. 1 is the flow chart for the terminal communication management method that first embodiment of the invention provides；
Fig. 2 is the structural representation for the terminal Communications Management Units that second embodiment of the invention provides；
Fig. 3 is the structural representation for the mobile terminal that second embodiment of the invention provides；
Fig. 4 is the schematic diagram of the signal code that fourth embodiment of the invention is related to and prefix；
Fig. 5 is the flow chart for the Interference Detection that fourth embodiment of the invention is related to.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is part of the embodiment in the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Further annotation explanation is now made to the present invention by way of embodiment combination accompanying drawing.
First embodiment：
Fig. 1 is the flow chart for the terminal communication management method that first embodiment of the invention provides, as shown in Figure 1, this implementation
The terminal communication management method that example provides includes：
S101：Communication data in radio-frequency channel to be analyzed is acquired, obtains sampled data；
S102：According to sampled data, judge that radio-frequency channel to be analyzed is disturbed with the presence or absence of wireless lan signal, and export
The interference judged result of radio-frequency channel to be analyzed, interference judged result include interference being present and in the absence of interference；
S103：According to the interference judged result of each radio-frequency channel to be analyzed, management terminal communications.
In certain embodiments, being acquired to communication data in radio-frequency channel to be analyzed in above-described embodiment, obtain
Sampled data includes：
In radio-frequency channel to be analyzed, the first set of time domain samples is collected in sampling time window；
In radio-frequency channel to be analyzed, the second set of time domain samples is collected in relevant time period；Week correlation time
The duration of phase is more than the duration of sampling time window；
Using first set and second set as sampled data.
In certain embodiments, in above-described embodiment according to sampled data, judge that radio-frequency channel to be analyzed whether there is
Wireless lan signal disturbs, and the interference judged result for exporting radio-frequency channel to be analyzed includes：
The cross-correlation of first set and second set is performed, exports cross correlation results；
The first relevant peaks and the second relevant peaks are judged whether according to cross correlation results, if being not present, interference judges
As a result it is in the absence of interference；
If in the presence of the first relevant peaks and the second relevant peaks, judgement is whether the first relevant peaks and the second relevant peaks exceed
Power threshold, if being not above, interference judged result is in the absence of interference；
If the first relevant peaks and the second correlation peak-to-mean exceed power threshold, the second relevant peaks and the first relevant peaks are judged
Whether ratio exceedes rate threshold, if being not above, interference judged result is in the absence of interference；
If the ratio of the second relevant peaks and the first relevant peaks exceedes rate threshold, judge that the second relevant peaks are related to first
Whether the time between peak corresponds to symbol period, if it is not, it is in the absence of interference, if so, then interference is sentenced then to disturb judged result
Disconnected result is to exist to disturb.
In certain embodiments, the terminal communication management method in above-described embodiment, in addition to：
The repeated acquisition in the relevant time period of time shift, obtain sampled data；
Cross-correlation is carried out to sampled data, untill detecting Radio frequency interference, or, until week correlation time of time shift
Untill the accumulation time shift of phase exceedes the maximal correlation time cycle.
In certain embodiments, the interference judged result according to each radio-frequency channel to be analyzed in above-described embodiment, management
Terminal communication includes：
If the interference judged result of currently used radio-frequency channel is when interference be present, it is using other interference judged results
Radio-frequency channel in the absence of interference receives the signal of long evolving system；
And/or
If the interference judged result for preparing the radio-frequency channel of access is when interference be present, it is using other interference judged results
Radio-frequency channel in the absence of interference accesses long evolving system.
Second embodiment：
Fig. 2 is the structural representation for the terminal Communications Management Units that second embodiment of the invention provides, as shown in Figure 2, this
The terminal Communications Management Units that embodiment provides include：
Sampling module 21, for being acquired to communication data in radio-frequency channel to be analyzed, obtain sampled data；
Judge module 22, for according to sampled data, judging that radio-frequency channel to be analyzed whether there is wireless lan signal
Interference, and the interference judged result of radio-frequency channel to be analyzed is exported, interference judged result includes interference being present and in the absence of interference；
Management module 23, for the interference judged result according to each radio-frequency channel to be analyzed, management terminal communications.
In certain embodiments, the sampling module 21 in above-described embodiment is used to, in radio-frequency channel to be analyzed, sample
The first set of time domain samples is collected in time window；In radio-frequency channel to be analyzed, time domain is collected in relevant time period
The second set of sample；The duration of relevant time period is more than the duration of sampling time window；By first set and second set
As sampled data.
In certain embodiments, the judge module 22 in above-described embodiment is used to perform the mutual of first set and second set
Correlation, export cross correlation results；The first relevant peaks and the second relevant peaks are judged whether according to cross correlation results, if not depositing
Judged result is then being disturbed as in the absence of interference；If in the presence of the first relevant peaks and the second relevant peaks, judgement is the first relevant peaks
Whether exceed power threshold with the second relevant peaks, if being not above, interference judged result is in the absence of interference；If the first phase
Guan Feng and the second correlation peak-to-mean exceed power threshold, then judge whether the second relevant peaks and the ratio of the first relevant peaks exceed ratio
Threshold value, if being not above, interference judged result is in the absence of interference；If the ratio of the second relevant peaks and the first relevant peaks exceedes
Rate threshold, then judge whether the time between the second relevant peaks and the first relevant peaks corresponds to symbol period, if it is not, then disturbing
Judged result is in the absence of interference, if so, it is to exist to disturb then to disturb judged result.
In certain embodiments, the sampling module 21 in above-described embodiment is used to repeat in the relevant time period of time shift
Collection, obtain sampled data；Judge module 22 is used to carry out cross-correlation to sampled data, untill detecting Radio frequency interference,
Or untill the accumulation time shift of the relevant time period of time shift exceedes the maximal correlation time cycle.
In certain embodiments, if the management module 23 in above-described embodiment is used for the interference of currently used radio-frequency channel
Judged result is when interference be present, disturbs judged results using other to receive Long Term Evolution system in the absence of the radio-frequency channel of interference
The signal of system；And/or if the interference judged result for preparing the radio-frequency channel of access is when interference be present, to be sentenced using other interference
Disconnected result is the radio-frequency channel access long evolving system in the absence of interference.
In actual applications, all functional modules in embodiment illustrated in fig. 2, processor, editorial logic can be used
The modes such as device are realized.
3rd embodiment：
Fig. 3 is the structural representation for the mobile terminal that third embodiment of the invention provides, from the figure 3, it may be seen that the present embodiment carries
The mobile terminal of confession includes：Communication module 31, processor 32 and memory 33, wherein,
Communication module 31 is used to receive communication data；It can include LTE communication module and WIFI communication modules, use respectively
To receive communication data；
The communication data that processor 32 is used to receive communication module in radio-frequency channel to be analyzed is acquired, and is adopted
Sample data；According to sampled data, judge that radio-frequency channel to be analyzed is disturbed with the presence or absence of wireless lan signal, and export to be analyzed
The interference judged result of radio-frequency channel, interference judged result include interference being present and in the absence of interference；According to each radio frequency to be analyzed
The interference judged result of channel, management communication module 31 work；
Memory 33 is used for the interference judged result for storing each radio-frequency channel to be analyzed.
In certain embodiments, the processor 32 in above-described embodiment is used in radio-frequency channel to be analyzed, in sampling
Between the first sets of time domain samples is collected in window；In radio-frequency channel to be analyzed, time domain sample is collected in relevant time period
This second set；The duration of relevant time period is more than the duration of sampling time window；First set and second set are made
For sampled data.
In certain embodiments, the processor 32 in above-described embodiment is used to perform the mutual of first set and second set
Close, export cross correlation results；The first relevant peaks and the second relevant peaks are judged whether according to cross correlation results, if being not present,
It is in the absence of interference then to disturb judged result；If in the presence of the first relevant peaks and the second relevant peaks, judgement be the first relevant peaks and
Whether the second relevant peaks exceed power threshold, if being not above, interference judged result is in the absence of interference；If first is related
Peak and the second correlation peak-to-mean exceed power threshold, then judge whether the second relevant peaks and the ratio of the first relevant peaks exceed ratio threshold
Value, if being not above, interference judged result is in the absence of interference；If the ratio of the second relevant peaks and the first relevant peaks exceed than
Rate threshold value, then judge whether the time between the second relevant peaks and the first relevant peaks corresponds to symbol period, if it is not, then interference is sentenced
Disconnected result is in the absence of interference, if so, it is to exist to disturb then to disturb judged result.
In certain embodiments, the processor 32 in above-described embodiment is used to repeat to adopt in the relevant time period of time shift
Collection, sampled data is obtained, cross-correlation is carried out to sampled data, untill detecting Radio frequency interference, or, until the phase of time shift
The accumulation time shift of time cycle is closed more than untill the maximal correlation time cycle.
In certain embodiments, if the interference that the processor 32 in above-described embodiment is used for currently used radio-frequency channel is sentenced
The use of other interference judged results is the radio-frequency channel reception long evolving system in the absence of interference when disconnected result is has interference
Signal；And/or if the interference judged result for preparing the radio-frequency channel of access is when interference be present, judged using other interference
As a result it is the radio-frequency channel access long evolving system in the absence of interference.
Fourth embodiment：
Further annotation explanation is done to the present invention in conjunction with concrete application scene.
For ordinary circumstance to domestic consumer, WIFI working channel is fixed；When WIFI＆LTE coexists, show if any mutual interference
As occurring, the gravity treatments of LTE frequency ranges is considered as first to avoid or reduce interference.Based on this, before UE is operated in LTE frequency ranges,
By the LTE channels for thering is WIFI signal interference to register work around detecting whether, more have so as to take corresponding drop to disturb measure
Operability.
Based on this, the present embodiment provides a kind of terminal device or processor, for ISM (Industrial Scientific
Medical Band, it is not necessary to permit) frequency range detected and judged, not to OFDM ((Orthogonal Frequency
Division Multiplexing, orthogonal frequency division multiplexi) in the case of symbol decoding to be confirmed whether to have from WLAN
The Radio frequency interference of the wireless communication system of (patch is not WIFI) is present.
Specifically, this method includes：
At mobile terminal：
The first set of time domain samples is collected in sampling time window on RF channel：
The cross-correlation of the first set and the second set of the time domain samples received in radio-frequency channel of time domain samples is performed,
The second set of time domain samples crosses over the relevant time period longer than sampling time window：And：
When the first relevant peaks of cross-correlation and the second relevant peaks exceed power threshold, the second relevant peaks and first of cross-correlation
The ratio of relevant peaks exceedes rate threshold, and the time between the second relevant peaks and the first relevant peaks of cross-correlation corresponds to symbol
During number cycle, the Radio frequency interference that detects：And
Repeated collection and cross-correlation in the relevant time period of time shift, untill detecting Radio frequency interference or until
Untill the accumulation time shift of the relevant time period of time shift exceedes the maximal correlation time cycle.
Wherein, sampling time window crosses over the time corresponding with the cyclic prefix (CP) of OFDM symbol.
Wherein, relevant time period corresponds to the symbol period of the OFDM symbol of WIFI communication systems.
Wherein, Wireless Telecom Equipment operates according to LTE wireless communication protocols, and the Radio frequency interference detected is from WIFI
What communication system received.
Wherein, WIFI communication systems are operated according to 802.11g/a wireless communication protocols；
Wherein, when collecting each subsequent sampling times window of time domain samples relative to prior sample time window wherein
The length less than the sampling time window is moved.
Further, in addition to：
When detecting Radio frequency interference in particular sample time window, at least one extra relevant time period
Repeated collection and cross-correlation are to confirm Radio frequency interference, the wherein at least one extra relevant time period time shift correlation time
One or more integral multiples of the length in cycle.
Further, in addition to：
When detecting Radio frequency interference, forbid the communication in radio-frequency channel at least first time period.
Further, in addition to：
When not detecting Radio frequency interference and Wireless Telecom Equipment had previously prohibited the communication in radio-frequency channel, extremely
Allow the communication in radio-frequency channel in few second time period.
In certain embodiments, Wireless Telecom Equipment can scan in a radio frequency band one of (or in multiple radio frequency bands)
Or multiple radio-frequency channels are to detect the presence of WIFI communication systems.Wireless Telecom Equipment collects the radio frequency time-domain signal sample received
This set, the transmission of this and WIFI communication systems can be asynchronous.
In certain embodiments, compared with the sample rate that WIFI systems are used for transmission, Wireless Telecom Equipment can be to receiving
Radiofrequency signal carries out at least twice can believe mobile phone radio frequency to four times of " over-sampling ", Wireless Telecom Equipment in sampling time window
The first set of number time domain samples, the sampling time window may span across in certain embodiments is used for OFDM in WIFI communication systems
The time cycle of the cyclic prefix (CP) of symbol.
In certain embodiments, for the first set of radiofrequency signal sample across the time cycle of at least 0.8 microsecond, this can be right
Should be in the circulating prefix-length of the OFDM symbol in 802.11g/a systems.Wireless Telecom Equipment can perform radiofrequency signal sample
The cross-correlation of first set and the second set of the radiofrequency signal sample across the relevant time period longer than sampling time window.
In certain embodiments, the relevant time period crosses over the time for OFDM symbol (in addition to cyclic prefix)
Cycle.This longer time cycle of OFDM symbol is also referred to as " useful " OFDM symbol time cycle.Radio communication is set
It is standby to can determine that whether the first set of radiofrequency signal sample and the cross-correlation of the second set of radiofrequency signal sample produce abundant height
Amplitude：Such as two (or more) relevant peaks higher than threshold level.It also can determine that whether relevant peaks are separated by OFDM symbol
Time cycle.It also can determine that whether the second relevant peaks and the ratio of the first relevant peaks exceed rate threshold, such as judge the second phase
Whether Guan Feng amplitude equals or exceeds the 90% of the first related peak amplitude.
In certain embodiments, Wireless Telecom Equipment is repeatable collects time domain samples and in time shift relevant time period
Cross-correlation is performed, until the detection generation to Radio frequency interference or the accumulation time shift of time shift relevant time period exceed maximal correlation
Untill time cycle.As shown in figure 4, in the exemplary embodiment, two relevant peaks are separated by 3.2 microseconds, this is accorded with corresponding to OFDM
Number time cycle.When detecting two with sufficient amplitude and reasonable time interval relevant peaks, radio communication is set
It is standby to can determine that the radio-frequency channel of mobile phone radio frequency sample of signal thereon is used in WIFI communication systems.
In certain embodiments, Wireless Telecom Equipment can take Radio frequency interference mitigation technique for LTE communication limitation of radio frequency
Interference, its mode are, for example, to be believed by another radio frequency for selecting the expected and/or known LTE honeycombs that will not be disturbed to transmit
Road.
As shown in figure 5, the interference detection method that the present embodiment provides comprises the following steps：
S501：Mobile terminal initializes.
Mobile terminal, variable n is initialised to null value, the null value may correspond to zero offset value such as mobile phone after powering
Initial sample window.
S502：Carry out the collection of sampled data.
In this step, the receiver of mobile terminal can collect time-domain radio-frequency in the time window across time interval Ti-t
The first set of sample of signal.
In certain embodiments, the first set of time-domain radio-frequency sample of signal is the communication phase for being used with cell phone apparatus
What the radio-frequency channel of association was collected, for example, when cell phone apparatus oneself through it is associated with router using the radio-frequency channel when.
In certain embodiments, the first set of time-domain radio-frequency sample of signal is that the logical of cell phone apparatus can occur for expection
What the radio-frequency channel of letter was collected, such as communication for future and/or when search will be used for the radio-frequency channel to communicate.
In certain embodiments, the first set of time-domain radio-frequency sample of signal is as a part of right of radio frequency reading process
Collected in radio-frequency channel.In the exemplary embodiment, the time interval Ti-t of time window is crossed over and LTE wireless communication systems
OFDM symbol cyclic prefix corresponding time cycle.
In certain embodiments, the scope of time interval Ti-t value is the microsecond from 4.5 to 5.5.In certain embodiments,
Time interval Ti-t value is about 4.7 microseconds and/or 5.4 microseconds.In certain embodiments, time interval Ti-t value is at least etc.
In the circulating prefix-length of the OFDM symbol of LTE wireless communication systems.
S503：Mobile terminal carries out cross-correlation to sampled data.
Cell phone apparatus perform the first set of the radiofrequency signal sample of the collected time window with it is wireless in leap LTE
The second set of the radiofrequency signal sample received in the period of time T sym of at least one OFDM symbol of communication system it is mutual
Close.
In certain embodiments, period of time T sym value equals or exceeds 66.7 microseconds.
In certain embodiments, the second set of radiofrequency signal sample includes the first set of radiofrequency signal sample at least
A part.In certain embodiments, the second set of radiofrequency signal sample comprises at least the first set of radiofrequency signal sample
All.
S504：Judge the 1st peak, whether the power at the 2nd peak is more than power threshold；If so, then performing step S505, otherwise hold
Row S509.
Cell phone apparatus compares cross correlation value to determine whether to occur to exceed the second horizontal cross-correlation peak of power threshold value.(when
By the first set of radiofrequency signal sample it is related to its own when, the first cross-correlation peak is bound to occur because across it is wider when
Between cycle T sym radiofrequency signal sample second set part can overlapping radiofrequency signal sample first set).
When the second cross-correlation peak of no generation, cell phone apparatus proceeds to step S509 to judge the collection of the cross-correlation of completion
Close and whether exceed the period of time T sym across at least one OFDM symbol of LTE wireless communication systems.
S505：Whether the power ratio at the 2nd peak and the 1st peak is more than rate threshold, if so, then performing step S506, otherwise
Perform S509.
When judging that the second cross-correlation peak exceedes power threshold value, cell phone apparatus is judging the cross-correlation at the second cross-correlation peak
Whether the ratio of the power level of the cross-correlation at power level and the first cross-correlation peak exceedes ratio threshold value.In some embodiments
In, the power level value at the second cross-correlation peak must equal or exceed the record power level value at the first cross-correlation peak at least
80.When the ratio is no more than ratio threshold value, cell phone apparatus may proceed to step S509.When the ratio exceedes ratio threshold value,
Cell phone apparatus can perform step S506.
S506：Time between 2nd peak and the 1st peak whether the equal symbol time, if so, then performing step S507, otherwise
Perform S509.
Judge whether the time interval between the first cross-correlation peak and the second cross-correlation peak corresponds to LTE wireless communication systems
OFDM symbol time cycle.When the time cycle between cross-correlation peak being not equal to the OFDM symbol time (such as Tsym=
66.7 microseconds), cell phone apparatus may proceed to step S509.It is equal to the OFDM symbol time when the time cycle between cross-correlation peak
When, cell phone apparatus performs step S507.
S507：Detect that WiFi is disturbed.
Detectable LTE wireless communication systems are transmitted in the radio-frequency channel being sampled, that is, interference be present.
S508：Compensate.
Cell phone apparatus can compensate to the presence of the radio frequency mutual interference from LTE wireless communication systems.In some realities
To apply in example, cell phone apparatus avoids detecting the radio-frequency channel of LTE wireless communication systems, such as when avoiding random or fixed one section
Between, or to avoid the scan operation to future from judging that the radio-frequency channel coexists from the radio frequency from LTE wireless communication systems dry
Untill disturbing.
For example, in certain embodiments, the method shown in Fig. 5 can connect as the Carrier-Sense Multiple performed by cell phone apparatus
Enter the part execution that (CCA) is assessed in " unimpeded " radio-frequency channel in (CSMA) agreement.In certain embodiments, cell phone apparatus is worked as
When having one or more data packets to send, cell phone apparatus can perform CCA, the CCA may include as Fig. 5 summarize the step of.
When the radio-frequency channel that cell phone apparatus is assessed is unoccupied, such as indicated at the step S512 in Fig. 5, then hand
All or part of of one or more data packets can be transmitted in machine equipment.When the radio-frequency channel that cell phone apparatus is assessed is occupied
When, such as indicated at the step S507 in Fig. 5, then cell phone apparatus is for example according to CSMA agreements and/or as Clear Channel
The part of (CCA) process of assessment can postpone the transmission (postponing random or fixed a period of time) of one or more packages.
In some embodiments, cell phone apparatus takes the radio-frequency channel labeled as oneself, and selects in same radio frequency band or different
Another radio-frequency channel in radio frequency band comes for the communication with other equipment.This may also comprise mobile phone in certain embodiments and sets
Preparation channels switching notice (Channel Switch Announcement) action action frame, the frame indicate cell phone apparatus plan
Which selected radio-frequency channel be moved to.
S509：Whether the sample window judged across at least one whole OFDM symbol time cycle has been used for cross-correlation.
If so, then performing S512, S510 is otherwise performed.
Cell phone apparatus judges whether be used for mutually across the sample window of at least one whole OFDM symbol time cycle
Close.When cell phone apparatus judges that oneself checked at least one whole OFDM symbol time cycle and does not detect pair at cross-correlation peak
When, then perform in S512, can determine that the radio-frequency channel that no LTE wireless communication systems are currently sampled in occupancy.When less than one
When the whole OFDM symbol time cycle is used for cross-correlation, S510 is performed.
S510：It is incremented by n.
It is incremented by variable n in step S510, and in step S511 is performed, radiofrequency signal sample window is offset
Toffse, time cycle.
S511：Window movement T offset.
In certain embodiments, period of time T offset corresponds to the time cycle of at least one LTE samples.At some
In embodiment, period of time T offset is equal to or less than the time cycle that the cyclic prefix of LTE system is crossed over.In some realities
Apply in example, Toffset=Tint.When no second cross-correlation peak exceedes power threshold value, wlan device will be by that will be used for mutually
Radiofrequency signal sample window " slip " offset period and repetition cross-correlation of the set of the radiofrequency signal sample of pass, to weigh
Multiple step S502 to S504.
In summary, by the implementation of the embodiment of the present invention, following beneficial effect at least be present：
The embodiments of the invention provide a kind of terminal communication management method, this method is in mobile terminal side to same radio-frequency channel
Sample detecting is carried out, to judge each radio-frequency channel with the presence or absence of the interference such as WIFI, and exports interference judged result, thus can be with
Terminal communication is managed according to the interference judged result of each radio-frequency channel, for example, when certain radio-frequency channel has WIFI interference
When, communicated without using this radio-frequency channel, the interference of radio-frequency channel can thus be evaded in mobile terminal side,
Solves the problems, such as the use body for interfering, enhancing user existing during existing two kinds of coexistence of communication systems of LTE＆WLAN
Test.
It should be understood by those skilled in the art that, embodiments of the invention can be provided as method, system or computer program
Product.Therefore, the shape of the embodiment in terms of the present invention can use hardware embodiment, software implementation or combination software and hardware
Formula.Moreover, the present invention can use the computer for wherein including computer usable program code in one or more to use storage
The form for the computer program product that medium is implemented on (including but is not limited to magnetic disk storage and optical memory etc.).
The present invention is the flow with reference to method according to embodiments of the present invention, equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that can be by every first-class in computer program instructions implementation process figure and/or block diagram
Journey and/or the flow in square frame and flow chart and/or block diagram and/or the combination of square frame.These computer programs can be provided
The processors of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce
A raw machine so that produced by the instruction of computer or the computing device of other programmable data processing devices for real
The device for the function of being specified in present one flow of flow chart or one square frame of multiple flows and/or block diagram or multiple square frames.
These computer program instructions, which may be alternatively stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory, which produces, to be included referring to
Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one square frame of block diagram or
The function of being specified in multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that counted
Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented processing, so as in computer or
The instruction performed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in individual square frame or multiple square frames.
It the above is only the embodiment of the present invention, any formal limitation not done to the present invention, it is every
Any simple modification, equivalent variations, combination or the modification that technical spirit according to the present invention is made to embodiment of above, still
Belong to the protection domain of technical solution of the present invention.
Claims (11)
1. a kind of terminal communication management method, including：
Communication data in radio-frequency channel to be analyzed is acquired, obtains sampled data；
According to the sampled data, judge that the radio-frequency channel to be analyzed is disturbed with the presence or absence of wireless lan signal, and export
The interference judged result of the radio-frequency channel to be analyzed, the interference judged result include interference being present and in the absence of interference；
According to the interference judged result of each radio-frequency channel to be analyzed, management terminal communications.
2. terminal communication management method as claimed in claim 1, it is characterised in that described to being communicated in radio-frequency channel to be analyzed
Data are acquired, and obtaining sampled data includes：
In the radio-frequency channel to be analyzed, the first set of time domain samples is collected in sampling time window；
In the radio-frequency channel to be analyzed, the second set of time domain samples is collected in relevant time period；When described related
Between the cycle duration be more than the sampling time window duration；
Using the first set and the second set as the sampled data.
3. terminal communication management method as claimed in claim 2, it is characterised in that it is described according to the sampled data, judge
The radio-frequency channel to be analyzed is disturbed with the presence or absence of wireless lan signal, and the interference for exporting the radio-frequency channel to be analyzed is sentenced
Disconnected result includes：
The cross-correlation of the first set and the second set is performed, exports cross correlation results；
The first relevant peaks and the second relevant peaks are judged whether according to the cross correlation results, if being not present, interference judges
As a result it is in the absence of interference；
If in the presence of the first relevant peaks and the second relevant peaks, judgement is whether first relevant peaks and the second relevant peaks exceed
Power threshold, if being not above, interference judged result is in the absence of interference；
If first relevant peaks and the second correlation peak-to-mean exceed power threshold, second relevant peaks and described first are judged
Whether the ratio of relevant peaks exceedes rate threshold, if being not above, interference judged result is in the absence of interference；
If the ratio of second relevant peaks and first relevant peaks exceedes rate threshold, judge second relevant peaks with
Whether the time between first relevant peaks corresponds to symbol period, if it is not, then disturb judged result be in the absence of interference, if
It is that it is interference be present then to disturb judged result.
4. terminal communication management method as claimed in claim 3, it is characterised in that also include：
The repeated acquisition in the relevant time period of time shift, obtain the sampled data；
Cross-correlation is carried out to the sampled data, untill detecting Radio frequency interference, or, until week correlation time of time shift
Untill the accumulation time shift of phase exceedes the maximal correlation time cycle.
5. the terminal communication management method as described in any one of Claims 1-4, it is characterised in that described according to each to be analyzed
The interference judged result of radio-frequency channel, management terminal communications include：
The use of other interference judged results is not deposit if the interference judged result of currently used radio-frequency channel is when interference be present
The signal of long evolving system is received in the radio-frequency channel of interference；
And/or
The use of other interference judged results is not deposit if the interference judged result for the radio-frequency channel for preparing to access is when interference be present
Long evolving system is accessed in the radio-frequency channel of interference.
6. a kind of terminal Communications Management Units, including：
Sampling module, for being acquired to communication data in radio-frequency channel to be analyzed, obtain sampled data；
Judge module, for according to the sampled data, judging that the radio-frequency channel to be analyzed is believed with the presence or absence of WLAN
Number interference, and exports the interference judged result of the radio-frequency channel to be analyzed, the interference judged result include existing interference and
In the absence of interference；
Management module, for the interference judged result according to each radio-frequency channel to be analyzed, management terminal communications.
7. terminal Communications Management Units as claimed in claim 6, it is characterised in that the sampling module is used to treat point described
Analyse in radio-frequency channel, the first set of time domain samples is collected in sampling time window；In the radio-frequency channel to be analyzed,
The second set of time domain samples is collected in relevant time period；The duration of the relevant time period is more than the sampling time window
The duration of mouth；Using the first set and the second set as the sampled data.
8. terminal Communications Management Units as claimed in claim 7, it is characterised in that the judge module is used to perform described the
One set and the cross-correlation of the second set, export cross correlation results；Is judged whether according to the cross correlation results
One relevant peaks and the second relevant peaks, if being not present, interference judged result is in the absence of interference；If in the presence of the first relevant peaks and
Two relevant peaks, then judge to be whether first relevant peaks and the second relevant peaks exceed power threshold, if being not above, do
It is in the absence of interference to disturb judged result；If first relevant peaks and the second correlation peak-to-mean exceed power threshold, judge described in
Whether the ratio of the second relevant peaks and first relevant peaks exceedes rate threshold, if being not above, interference judged result is
In the absence of interference；If the ratio of second relevant peaks and first relevant peaks exceedes rate threshold, described second is judged
Whether the time between relevant peaks and first relevant peaks corresponds to symbol period, if it is not, then disturbing judged result not deposit
Disturbing, if so, it is to exist to disturb then to disturb judged result.
9. terminal Communications Management Units as claimed in claim 8, it is characterised in that the sampling module is used for the phase in time shift
Repeated acquisition in the time cycle is closed, obtains the sampled data；The judge module is used to carry out mutually the sampled data
Close, untill detecting Radio frequency interference, or, when the accumulation time shift of the relevant time period of time shift exceedes maximal correlation
Between untill the cycle.
10. the terminal Communications Management Units as described in any one of claim 6 to 9, it is characterised in that the management module is used for
The use of other interference judged results is in the absence of dry if the interference judged result of currently used radio-frequency channel is when interference be present
The radio-frequency channel disturbed receives the signal of long evolving system；And/or if the interference judged result for preparing the radio-frequency channel of access is
The use of other interference judged results is the radio-frequency channel access long evolving system in the absence of interference during in the presence of interference.
A kind of 11. mobile terminal, it is characterised in that including communication module, processor and memory, wherein,
The communication module is used to receive communication data；
The communication data that the processor is used to receive the communication module in radio-frequency channel to be analyzed is acquired, and is obtained
Sampled data；According to the sampled data, judge that the radio-frequency channel to be analyzed is disturbed with the presence or absence of wireless lan signal, and
The interference judged result of the radio-frequency channel to be analyzed is exported, the interference judged result includes interference being present and in the absence of dry
Disturb；According to the interference judged result of each radio-frequency channel to be analyzed, the communication module work is managed；
The memory is used for the interference judged result for storing each radio-frequency channel to be analyzed.
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