CN105873183B - A kind of method for searching network and user equipment - Google Patents
A kind of method for searching network and user equipment Download PDFInfo
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- CN105873183B CN105873183B CN201610169437.7A CN201610169437A CN105873183B CN 105873183 B CN105873183 B CN 105873183B CN 201610169437 A CN201610169437 A CN 201610169437A CN 105873183 B CN105873183 B CN 105873183B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
- H04J11/0069—Cell search, i.e. determining cell identity [cell-ID]
- H04J11/0086—Search parameters, e.g. search strategy, accumulation length, range of search, thresholds
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Abstract
The embodiment of the invention discloses a kind of method for searching network and user equipment, the signaling mode for receiving and including in signal can be obtained, preferentially attempts to search net by the signaling mode got, saves and search net residence time.The method comprise the steps that generating received signal strength indicator RSSI frequency swept waveform figure, wherein, the horizontal axis of the RSSI frequency swept waveform figure indicates the number of frequency point, and the longitudinal axis of the RSSI frequency swept waveform figure indicates the RSSI value of the frequency point, between adjacent frequency between be divided into preset value；The rising edge and failing edge that signal is received in the RSSI frequency swept waveform figure are obtained, the failing edge is the corresponding failing edge of the rising edge；It determines the distance of the rising edge and failing edge, and signal bandwidth is determined according to the distance of the rising edge and failing edge；According to the signal bandwidth identification signal standard；Net is searched by signaling mode trial.
Description
Technical field
The present invention relates to field of communication technology more particularly to a kind of method for searching network and user equipment.
Background technique
For the communication system of wireless terminal, booting first thing is to search net, is only searched out and client identification module
(full name in English: Subscriber Identity Module, english abbreviation: SIM) blocks matched operator's informaiton, and initiates to stay
It stays, can just obtain corresponding radio communication service, therefore it is most important to search net performance.Net performance is searched mainly by searching net spee and searching
The big index of net covering radius two measure, search net spee requirement user equipment (full name in English: User Equipment, english abbreviation:
UE the corresponding network of net) is searched within the shortest time, searches the requirement of net covering radius under the weak scene of pickup electrode, UE still is able to
Search out network.For a user, more scenes are the requirements to net spee is searched, and are especially leaving former historical act region
Afterwards, no prior information searches net spee.It searches net spee to be made of two aspects: first is that searching net strategy；Second is that cell searches net spee.It searches
Net strategy mainly first searches what what searches again, i.e., the policing issue how dispatched, search net strategy due to being related to the scheduling of multimode,
And the protocol specification requirements that do not fix, strategy used by each producer are different.
A kind of existing net strategy of searching is to carry out full range according to the dispatching sequence of multimode to search, specifically: it is mobile by the whole world
Communication system (full name in English: Global System for Mobile communications, english abbreviation: GSM) is to each
Frequency point attempt, then by wideband code division multiple access (full name in English: Wideband Code Division Multiple Access,
English abbreviation: WCDMA) each frequency point is attempted, then pass through TD SDMA (full name in English: Time Division-
Synchronous Code Division Multiple Access, english abbreviation: TD-SCDMA) each frequency point is attempted, most
Each frequency point is attempted by long term evolution (full name in English: Long Term Evolution, english abbreviation: LTE) afterwards.
But, it is assumed that there are a stronger LTE broadband signal, since existing net strategy of searching is searched using fixed
Net process causes LTE signaling mode that can only can just be attempted finally, then largely search net the time will consume GSM,
In the trial of WCDMA, TD-SCDMA equisignal system formula, it is excessive to search the resident process the time it takes of net.
Summary of the invention
The embodiment of the invention provides a kind of method for searching network and user equipment, the signal for receiving and including in signal can be obtained
Standard is preferentially attempted to search net, saves and search net residence time by the signaling mode got.
In view of this, first aspect present invention provides a kind of method for searching network, comprising:
If UE detects to obtain the RSSI of wireless network by antenna port, surveyed at interval of fixed frequency interval primary
RSSI obtains a series of frequency points and the corresponding relationship of RSSI, to obtain frequency swept waveform；It that is to say that generating received signal strength refers to
Show RSSI frequency swept waveform figure, wherein the horizontal axis of the RSSI frequency swept waveform figure indicates the number of frequency point, the RSSI frequency swept waveform
The longitudinal axis of figure indicates the RSSI value of the frequency point, between adjacent frequency between be divided into preset value；
The rising edge and failing edge that signal is received in the RSSI frequency swept waveform figure are obtained, the failing edge is the rising
Along corresponding failing edge；
It determines the distance of the rising edge and failing edge, and signal band is determined according to the distance of the rising edge and failing edge
It is wide；
According to the signal bandwidth identification signal standard；
Net is searched by signaling mode trial.
Its advantages: the distance by obtaining the rising edge and failing edge that receive signal in RSSI frequency swept waveform figure, really
Determine signal bandwidth, and then identification signal standard, net is searched by the signaling mode trial recognized, is searched in net strategy relative to existing
Net process is searched using fixed, it is to search the signaling mode recognized before net that the present invention, which searches signaling mode used in net process, is kept away
Exempt from it is unidentified to signaling mode preferentially search net, ensure that receiving signaling mode included in signal preferentially attempts, as a result, this
Invention, which can save, searches net residence time.
In conjunction with first aspect present invention, the first embodiment of first aspect present invention includes:
The rising edge of signal is received in the acquisition RSSI frequency swept waveform figure and failing edge includes:
1) in the RSSI frequency swept waveform figure, the sliding phase reducing of front window and rear window is carried out, the cunning is successively stored
The numerical value that dynamic phase reducing obtains, wherein the front window and rear window include same integer frequency point, and the front window and rear window
Without intersection；
2) the first numerical value and second value are determined from the obtained numerical value of sliding phase reducing, and records described the
The location index of the location index of one numerical value and the second value, first numerical value are less than the left and right of first numerical value
Adjacent numerical value, the second value numerical value adjacent greater than the left and right of the second value；
3) minimum value is determined from first numerical value, and the minimum value is determined according to the location index of first numerical value
Location index, it is determining with the matched maximum value of the minimum value from the second value, according to the position of the second value
Set the location index that index determines the maximum value, wherein position rope of the location index of the maximum value in the minimum value
Draw below, and the absolute value of the maximum value is greater than the absolute value of the minimum value and the product of the first predetermined threshold value；
4) the RSSI frequency swept waveform figure is obtained according to the location index of the minimum value and the location index of maximum value
The middle one group of rising edge and failing edge for receiving signal, and by the location index of the maximum value and the location index of minimum value it
Between distance of the difference as one group of rising edge and failing edge；
5) minimum value and maximum value are reset, repeats the operation of step 3 and step 4, until minimum value is greater than
Second predetermined threshold value obtains multiple groups rising edge and failing edge that signal is received in the RSSI frequency swept waveform figure.
Its advantages: can be one by the difference between the location index of maximum value and the location index of minimum value
The distance of rising edge and failing edge is organized to estimate every group of signal bandwidth, enhances the realizability of scheme.
In conjunction with first aspect present invention, the first embodiment of first aspect present invention, the second of first aspect present invention
Embodiment includes:
It is described to include: according to the signal bandwidth identification signal standard
If the signal bandwidth is less than 1M, signaling mode is global system for mobile communications GSM；
If the signal bandwidth is not less than 1M and is not more than 6M, signaling mode is common file dialog UTRA or evolution
Common file dialog E-UTRA；
If the signal bandwidth is greater than 6M, signaling mode E-UTRA.
Since the mobile edition 3G in UTRA is 1.28M, connection version 3G is 5M, and telecommunications version 3G is 1.25M, therefore can be held very much
The difference of easy differentiation mobile edition 3G and connection version 3G are also easy to distinguish the difference of telecommunications version 3G and connection version 3G.In addition, E-
UTRA is 4G signaling mode.
In conjunction with first aspect present invention, the third embodiment of first aspect present invention includes:
Before the generation received signal strength indicator RSSI frequency swept waveform figure, further includes:
RSSI is detected by antenna port.
In conjunction with the third embodiment of first aspect present invention, the 4th embodiment of first aspect present invention includes:
The generation received signal strength indicator RSSI frequency swept waveform figure includes:
It is corresponding according to the number of each frequency point of the interval measurement of the preset value after detecting RSSI by antenna port
RSSI value, obtain each frequency point number and the corresponding relationship of corresponding RSSI value；
RSSI frequency swept waveform figure is generated according to the corresponding relationship.
In view of this, second aspect of the present invention provides a kind of user equipment (UE), comprising:
If UE detects to obtain the RSSI of wireless network by antenna port, surveyed at interval of fixed frequency interval primary
RSSI obtains a series of frequency points and the corresponding relationship of RSSI, to obtain frequency swept waveform；It that is to say generation module, for generating
Received signal strength indicator RSSI frequency swept waveform figure, wherein the horizontal axis of the RSSI frequency swept waveform figure indicates the number of frequency point,
The longitudinal axis of the RSSI frequency swept waveform figure indicates the RSSI value of the frequency point, between adjacent frequency between be divided into preset value；
Module is obtained, for obtaining the rising edge and failing edge that receive signal in the RSSI frequency swept waveform figure, under described
Drop edge is the corresponding failing edge of the rising edge；
Determining module, for determining the distance of the rising edge and failing edge, and according to the rising edge and failing edge
Distance determines signal bandwidth；
Identification module, for according to the signal bandwidth identification signal standard；
Net module is searched, for searching net by signaling mode trial.
Its advantages: the distance by obtaining the rising edge and failing edge that receive signal in RSSI frequency swept waveform figure, really
Determine signal bandwidth, and then identification signal standard, net is searched by the signaling mode trial recognized, is searched in net strategy relative to existing
Net process is searched using fixed, it is to search the signaling mode recognized before net that the present invention, which searches signaling mode used in net process, is kept away
Exempt from it is unidentified to signaling mode preferentially search net, ensure that receiving signaling mode included in signal preferentially attempts, as a result, this
Invention, which can save, searches net residence time.
In conjunction with second aspect of the present invention, the first embodiment of second aspect of the present invention includes:
The acquisition module includes:
First processing units, for carrying out the sliding phase reducing of front window and rear window in the RSSI frequency swept waveform figure,
Successively storing the obtained numerical value of sliding phase reducing, wherein the front window and rear window include same integer frequency point, and
The front window and rear window are without intersection；
The second processing unit, for determining the first numerical value and the second number from the numerical value that the sliding phase reducing obtains
Value, and the location index of first numerical value and the location index of the second value are recorded, first numerical value is less than institute
State the adjacent numerical value in the left and right of the first numerical value, the second value numerical value adjacent greater than the left and right of the second value；
Determination unit, for determining minimum value from first numerical value, the location index according to first numerical value is true
The location index of the fixed minimum value, the determining and matched maximum value of the minimum value from the second value, according to described
The location index of second value determines the location index of the maximum value, wherein the location index of the maximum value it is described most
Behind the location index of small value, and the absolute value of the maximum value is greater than the absolute value and the first predetermined threshold value of the minimum value
Product；
Third processing unit, for according to the acquisition of the location index of the location index of the minimum value and maximum value
The one group of rising edge and failing edge of signal are received in RSSI frequency swept waveform figure, and by the location index and minimum of the maximum value
Distance of the difference as one group of rising edge and failing edge between the location index of value；
Acquiring unit repeats determination unit and third processing unit for resetting the minimum value and maximum value
Operation, until minimum value be greater than the second predetermined threshold value, obtain in the RSSI frequency swept waveform figure receive signal multiple groups on
Rise edge and failing edge.
Its advantages: can be one by the difference between the location index of maximum value and the location index of minimum value
The distance of rising edge and failing edge is organized to estimate every group of signal bandwidth, enhances the realizability of scheme.
In conjunction with second aspect of the present invention, the first embodiment of second aspect of the present invention, the second of second aspect of the present invention
Embodiment includes:
The identification module, if being specifically used for the signal bandwidth is less than 1M, signaling mode is global mobile communication system
Unite GSM；If the signal bandwidth is not less than 1M and is not more than 6M, signaling mode is the logical of common file dialog UTRA or evolution
With wireless access E-UTRA；If the signal bandwidth is greater than 6M, signaling mode is long term evolution LTE.
In conjunction with second aspect of the present invention, the third embodiment of second aspect of the present invention includes:
The generation module generates before received signal strength indicator RSSI frequency swept waveform figure, further includes:
Detection module, for detecting RSSI by antenna port.
In conjunction with the third embodiment of second aspect of the present invention, the 4th embodiment of second aspect of the present invention includes:
The generation module includes:
Measuring unit, for after detecting RSSI by antenna port, the interval measurement according to the preset value to be each
The corresponding RSSI value of the number of frequency point obtains numbering and the corresponding relationship of corresponding RSSI value for each frequency point；
Generation unit, for generating RSSI frequency swept waveform figure according to the corresponding relationship.
As can be seen from the above technical solutions, the embodiment of the present invention has the advantage that by obtaining RSSI frequency swept waveform
The rising edge of signal and the distance of failing edge are received in figure, are determined signal bandwidth, and then identification signal standard, are passed through what is recognized
Net is searched in signaling mode trial, searches net process using fixed relative to existing search in net strategy, the present invention searches net process and used
Signaling mode be to search the signaling mode that recognizes before net, avoid it is unidentified to signaling mode preferentially search net, ensure that reception
Included signaling mode is preferentially attempted in signal, and the present invention, which can save, as a result, searches net residence time.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment
Attached drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this
For the those of ordinary skill of field, without any creative labor, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is one embodiment schematic diagram of method for searching network of the embodiment of the present invention；
Fig. 2 is part of embodiment of the present invention RSSI frequency swept waveform figure；
Fig. 3 is another embodiment schematic diagram of method for searching network of the embodiment of the present invention；
Fig. 4 is one embodiment schematic diagram of UE of the embodiment of the present invention；
Fig. 5 is another embodiment schematic diagram of UE of the embodiment of the present invention；
Fig. 6 is another embodiment schematic diagram of UE of the embodiment of the present invention；
Fig. 7 is one embodiment schematic diagram of server of the embodiment of the present invention.
Specific embodiment
The embodiment of the invention provides a kind of method for searching network and user equipment, the signal for receiving and including in signal can be obtained
Standard is preferentially attempted to search net, saves and search net residence time by the signaling mode got.
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The model that the present invention protects all should belong in member's every other embodiment obtained without making creative work
It encloses.
Description and claims of this specification and term " first ", " second ", " third " " in above-mentioned attached drawing
The (if present)s such as four " are to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should manage
The data that solution uses in this way are interchangeable under appropriate circumstances, so that the embodiments described herein can be in addition to illustrating herein
Or the sequence other than the content of description is implemented.In addition, term " includes " and " having " and their any deformation, it is intended that
Cover it is non-exclusive include, for example, containing the process, method, system, product or equipment of a series of steps or units need not limit
In step or unit those of is clearly listed, but may include be not clearly listed or for these process, methods, produce
The other step or units of product or equipment inherently.
The problem of present invention mainly solves before searching net, each signaling mode is needed to attempt one by one.The present invention is logical
The frequency swept waveform in RSSI frequency swept waveform figure is crossed, the signaling mode that the reception signal includes is judged in advance, passes through the reception signal
Including signaling mode preferentially attempted.Implementation of the invention realizes in baseband processor, and baseband processor can be with
Including software and processor.
In 3G (Third Generation) Moblie partnership projects (full name in English: Third Generation Partnership
Project, english abbreviation: 3GPP) agreement in, received signal strength indicator RSSI is defined as: receive broadband power, be included in
The noise of the thermal noise in bandwidth that receiver pulse shaping filter defines and receiver generation.The reference point of measurement is UE's
Antenna port, i.e. RSSI value are to receive the average value of all signal powers in symbol, including pilot signal, data at this
Signal, adjacent area interference signal, noise signal etc. are usually measured due to containing also in external other interference signals
Average value is higher than the average value with interior actually useful signal.
Method for searching network in the present invention is illustrated combined with specific embodiments below:
Referring to Fig. 1, one embodiment of method for searching network includes: in the embodiment of the present invention
101, received signal strength indicator RSSI frequency swept waveform figure is generated, wherein the horizontal axis table of the RSSI frequency swept waveform figure
Show the number of frequency point, the longitudinal axis of the RSSI frequency swept waveform figure indicates the RSSI value of frequency point, between adjacent frequency between be divided into it is default
Value；
In the present embodiment, if preset value is 200kHz, frequency sweep is done with the interval 200kHZ, obtains the RSSI of each frequency point
Value.It should be noted that preset value can also be other numerical value, this step is not construed as limiting.
102, the rising edge and failing edge of signal in RSSI frequency swept waveform figure are obtained, which is that the rising edge is corresponding
Failing edge；
In the present embodiment, in generating RSSI frequency swept waveform figure, signal can be identified from RSSI frequency swept waveform figure
Rising edge and failing edge, the failing edge are the corresponding failing edge of the rising edge.
In Fig. 2, the relation schematic diagram of a kind of rising edge and failing edge is given, Fig. 2 illustrates only the volume of part frequency point
The RSSI frequency swept waveform figure that corresponding relationship number between corresponding RSSI value determines, should not be construed as limitation of the invention,
Such as the corresponding RSSI value of frequency point 324 in Fig. 2 that laboratory measurement obtains be -96, the corresponding RSSI value of frequency point 325 be -
81。
103, it determines the distance of the rising edge and failing edge, and signal band is determined according to the distance of the rising edge and failing edge
It is wide；
In the present embodiment, after rising edge and failing edge that signal is received in obtaining RSSI figure, determine the rising edge under
The distance on edge drops, and according to the range estimation signal bandwidth of the rising edge and failing edge.
Since the difference between the number of frequency point can indicate the distance of the rising edge and failing edge, and between adjacent frequency
Between be divided into preset value, thus according to the range estimation signal bandwidth of the rising edge and failing edge.
In fig. 2 it is shown that the distance between a rising edge and corresponding failing edge.
104, according to signal bandwidth identification signal standard；
In the present embodiment, after signal bandwidth has been determined, it will be able to according to signal bandwidth identification signal standard.
105, net is searched by signaling mode trial.
In the present embodiment, after identifying the signaling mode that reception signal is included before searching net, wrapped by receiving signal
The signaling mode contained preferentially searches net.
In the present embodiment, by obtaining the distance of the rising edge and failing edge that receive signal in RSSI frequency swept waveform figure, really
Determine signal bandwidth, and then identification signal standard, net is searched by the signaling mode trial recognized, is searched in net strategy relative to existing
Net process is searched using fixed, it is to search the signaling mode recognized before net that the present invention, which searches signaling mode used in net process, is kept away
Exempt from it is unidentified to signaling mode preferentially search net, ensure that receiving signaling mode included in signal preferentially attempts, as a result, this
Invention, which can save, searches net residence time.
Optionally, in some embodiments of the invention, according to signal bandwidth identification signal standard specifically:
If signal bandwidth is less than 1M, signaling mode GSM；
If signal bandwidth not less than 1M and be not more than 6M, signaling mode be common file dialog (full name in English:
Universal Telecommunication Radio Access, english abbreviation: UTRA) or evolution common file dialog
(full name in English: Evolved Universal Terrestrial Radio Access, english abbreviation: E-UTRA)；
If signal bandwidth is greater than 6M, signaling mode E-UTRA.
It should be noted that connection version 3G is 5M, and telecommunications version 3G is since the mobile edition 3G in UTRA is 1.28M
1.25M, therefore the difference of mobile edition 3G and connection version 3G can be easily distinguished, it is also easy to distinguish telecommunications version 3G and connection version
The difference of 3G.
Optionally, in some embodiments of the invention, before generation received signal strength indicator RSSI frequency swept waveform figure
Include:
RSSI is detected by antenna port.
It is further alternative, in some embodiments of the invention, generate received signal strength indicator RSSI frequency swept waveform
Figure specifically:
After detecting RSSI by antenna port, the number according to each frequency point of the interval measurement of preset value is corresponding
RSSI value obtains numbering and the corresponding relationship of corresponding RSSI value for each frequency point；
RSSI frequency swept waveform figure is generated according to the corresponding relationship.
It is understood that surveying one at interval of fixed frequency interval if UE detects to obtain RSSI by antenna port
Secondary RSSI obtains a series of frequency points and the corresponding relationship of RSSI, to obtain frequency swept waveform figure.
In order to make it easy to understand, the method for searching network in the embodiment of the present invention is described in detail below, referring to Fig. 3, this
Another embodiment of method for searching network includes: in inventive embodiments
201, received signal strength indicator RSSI frequency swept waveform figure is generated, wherein the horizontal axis table of the RSSI frequency swept waveform figure
Show the number of frequency point, the longitudinal axis of the RSSI frequency swept waveform figure indicates the RSSI value of frequency point, between adjacent frequency between be divided into it is default
Value；
In the present embodiment, step 201 is similar with step 101, and details are not described herein again.
202, in the RSSI frequency swept waveform figure, the sliding phase reducing of front window and rear window is carried out, the sliding is stored and subtracts each other
Operate obtained numerical value, wherein the front window and rear window include same integer frequency point, and front window and rear window are without intersection.
In the present embodiment, step 202 is illustrated by illustrating as follows: assuming that front window and rear window include 3 frequency points,
The number for 3 frequency points that front window includes is frequency point 1, frequency point 2 and frequency point 3, and the number for 3 frequency points that rear window includes is frequency point 4,
Frequency point 5 and frequency point 6.
Wherein, the corresponding RSSI value of frequency point 1 is RSSI1, and the corresponding RSSI value of frequency point 2 is RSSI2, and frequency point 3 is corresponding
RSSI value is RSSI3.Similarly, the corresponding RSSI value of frequency point 4 is RSSI4, and the corresponding RSSI value of frequency point 5 is RSSI5, and frequency point 6 is right
The RSSI value answered is RSSI6.RSSI1, RSSI2 and RSSI3 are summed, it is assumed that value after summation is S1, by RSSI4,
RSSI5 and RSSI6 summation, it is assumed that the value after summation is S2, and S1 is subtracted S2, obtains P1, stores P1；
Front window and rear window are translated to a frequency point backward, the number for 3 frequency points that front window includes at this time is frequency point 2, frequency
Point 3 and frequency point 4, the number for 3 frequency points that rear window includes are frequency point 5, frequency point 6 and frequency point 7.
Wherein, the corresponding RSSI value of frequency point 7 is RSSI7, and similarly, RSSI2, RSSI3 and RSSI4 are summed, will
RSSI5, RSSI56 and RSSI7 summation, are subtracted each other, and P2 is obtained, and store P2；
Similarly, after repeatedly translating, available a series of numerical value: P1, P2, P3 ... PN.
203, the first numerical value and second value are determined from the numerical value that the sliding phase reducing obtains, and record the first number
The location index of value and the location index of second value, first numerical value numerical value adjacent less than the left and right of the first numerical value should
The second value numerical value adjacent greater than the left and right of second value.
In the present embodiment, it is assumed that the numerical value that the sliding phase reducing obtains is above-mentioned a series of numerical value: P1, P2, P3 ...
PN illustrates that P2 is second value if P2 is greater than P1 and P3, if P2 is less than P1 and P3, illustrates that P2 is the first numerical value；
Obviously, the first numerical value is the set of multiple numerical value composition, and second value is also the set of multiple numerical value compositions.
204, minimum value is determined from the first numerical value, and the position rope of minimum value is determined according to the location index of the first numerical value
Draw, the determining and matched maximum value of minimum value, the position of maximum value is determined according to the location index of second value from second value
Set index, wherein the location index of maximum value is behind the location index of minimum value, and the absolute value of maximum value is greater than minimum value
Absolute value and the first predetermined threshold value product；
In the present embodiment, due to containing the location index of minimum value in the location index of the first numerical value, so being capable of root
The location index of minimum value is determined according to the location index of the first numerical value, similarly, due to containing in the location index of second value
The location index of maximum value, so the location index of maximum value can be determined according to the location index of second value.
Optionally, the value of the first predetermined threshold value can be 0.5, can also be other numerical value, therefore be not construed as limiting herein.
205, it is obtained in RSSI frequency swept waveform figure and is received according to the location index of minimum value and the location index of maximum value
The one group of rising edge and failing edge of signal, and by the difference between the location index of the maximum value and the location index of minimum value
Distance as above-mentioned one group of rising edge and failing edge；
In the present embodiment, the location index difference between the location index of maximum value and the location index of minimum value is calculated,
Location index difference is the distance of one group of rising edge and failing edge.
206, minimum value and maximum value are reset, repeats the operation of step 204 and step 205, until minimum value is big
In the second predetermined threshold value, multiple groups rising edge and failing edge that signal is received in RSSI frequency swept waveform figure are obtained；
In the present embodiment, it can also be other reasonable values that the second predetermined threshold value, which can be -50, this step does not limit
It is fixed.
207, the distance of every group of rising edge and failing edge in multiple groups rising edge and failing edge is determined, and according to every group of rising
The distance of edge and failing edge determines every group of signal bandwidth；
In the present embodiment, every group of rising edge in multiple groups rising edge and failing edge can be determined by location index difference
With the distance of failing edge.
208, identification signal standard is distinguished according to every group of signal bandwidth；
In the present embodiment, different signal bandwidths corresponds to different signaling modes, such as: if signal bandwidth is less than 1M,
Then signaling mode is GSM；If signal bandwidth is not less than 1M and is not more than 6M, signaling mode is UTRA or E-UTRA；If signal
Band is wider than 6M, then signaling mode is E-UTRA.
209, net is searched by signaling mode trial.
In the present embodiment, signaling mode may include a variety of different signaling modes, pass through a variety of different signaling modes
Net is searched in trial.
In the present embodiment, by obtaining the distance of the rising edge and failing edge that receive signal in RSSI frequency swept waveform figure, really
Determine signal bandwidth, and then identification signal standard, net is searched by the signaling mode trial recognized, is searched in net strategy relative to existing
Net process is searched using fixed, it is to search the signaling mode recognized before net that the present invention, which searches signaling mode used in net process, is kept away
Exempt from it is unidentified to signaling mode preferentially search net, ensure that receiving signaling mode included in signal preferentially attempts, as a result, this
Invention, which can save, searches net residence time.
Secondly, the present embodiment can be by the difference between the location index of maximum value and the location index of minimum value
The distance of one group of rising edge and failing edge estimates every group of signal bandwidth, enhances the realizability of scheme.
The user equipment (UE) in the embodiment of the present invention is described below, referring to Fig. 4, user equipment (UE) in the embodiment of the present invention
One embodiment include:
Generation module 301, for generating received signal strength indicator RSSI frequency swept waveform figure, wherein RSSI frequency swept waveform
The horizontal axis of figure indicates the number of frequency point, and the longitudinal axis of RSSI frequency swept waveform figure indicates the RSSI value of frequency point, between adjacent frequency between
It is divided into preset value；
Module 302 is obtained, for obtaining the rising edge and failing edge that receive signal in RSSI frequency swept waveform figure, the failing edge
For the corresponding failing edge of rising edge；
Determining module 303, for determining the distance of rising edge and failing edge, and it is true according to the distance of rising edge and failing edge
Determine signal bandwidth；
Identification module 304, for according to signal bandwidth identification signal standard；
Net module 305 is searched, for searching net by signaling mode trial.
In the present embodiment, by obtaining the distance of the rising edge and failing edge that receive signal in RSSI frequency swept waveform figure, really
Determine signal bandwidth, and then identification signal standard, net is searched by the signaling mode trial recognized, is searched in net strategy relative to existing
Net process is searched using fixed, it is to search the signaling mode recognized before net that the present invention, which searches signaling mode used in net process, is kept away
Exempt from it is unidentified to signaling mode preferentially search net, ensure that receiving signaling mode included in signal preferentially attempts, as a result, this
Invention, which can save, searches net residence time.
Refering to Fig. 5, optionally, in some embodiments of the invention, generation module 301 generates received signal strength indicator
Before RSSI frequency swept waveform figure, further includes:
Detection module 401, for detecting RSSI by antenna port.
Further alternative, in some embodiments of the invention, generation module 301 includes:
Measuring unit 3011, it is every according to the interval measurement of the preset value for after detecting RSSI by antenna port
The corresponding RSSI value of the number of a frequency point obtains numbering and the corresponding relationship of corresponding RSSI value for each frequency point；
Generation unit 3012, for generating RSSI frequency swept waveform figure according to the corresponding relationship.
Refering to Fig. 6, optionally, in some embodiments of the invention, obtaining module 302 includes:
First processing units 3021, for carrying out the sliding phase reducing of front window and rear window in RSSI frequency swept waveform figure,
Successively store the obtained numerical value of sliding phase reducing, wherein front window and rear window include same integer frequency point, and front window
With rear window without intersection；
The second processing unit 3022, for determining the first numerical value and the second number from the numerical value that sliding phase reducing obtains
Value, and record the location index of the first numerical value and the location index of second value, left and right of first numerical value less than the first numerical value
Adjacent numerical value, the second value numerical value adjacent greater than the left and right of second value；
Determination unit 3023 determines most for determining minimum value from the first numerical value according to the location index of the first numerical value
The location index of small value, the determining and matched maximum value of minimum value, true according to the location index of second value from second value
Determine the location index of maximum value, wherein the location index of maximum value is behind the location index of minimum value, and maximum value is absolute
Value is greater than the absolute value of minimum value and the product of the first predetermined threshold value；
Third processing unit 3024, for obtaining RSSI according to the location index of minimum value and the location index of maximum value
The one group of rising edge and failing edge of signal are received in frequency swept waveform figure, and by the location index of maximum value and the position of minimum value
Distance of the difference as one group of rising edge and failing edge between index；
Acquiring unit 3025 repeats determination unit 3023 and third processing for resetting minimum value and maximum value
The operation of unit 3024 obtains receiving the more of signal in RSSI frequency swept waveform figure until minimum value is greater than the second predetermined threshold value
Group rising edge and failing edge.
It should be noted that identification module 304, if being specifically used for signal bandwidth is less than 1M, signaling mode GSM；If
Signal bandwidth is not less than 1M and is not more than 6M, then signaling mode is UTRA or E-UTRA；If signal bandwidth is greater than 6M, signal
Standard is E-UTRA.
The embodiment of the present invention also provides a kind of server, referring to Fig. 7, one of server implementation in the embodiment of the present invention
Example include:
Fig. 7 is a kind of server architecture schematic diagram provided in an embodiment of the present invention, which can be because of configuration or performance
It is different and generate bigger difference, it may include one or more central processing units (central processing
Units, CPU) 501 (for example, one or more processors), one or more storage application programs 502 or data
503 storage medium 504 (such as one or more mass memory units).Wherein, storage medium 504 can be of short duration deposit
Storage or persistent storage.The program for being stored in storage medium 504 may include one or more modules (diagram does not mark), often
A module may include to the series of instructions operation in interchanger.Further, central processing unit 501 can be set to
Storage medium 504 communicates, and the series of instructions operation in storage medium 504 is executed on server 500.
Server 500 can also include one or more power supplys 505, one or more wired or wireless networks
Interface 506, one or more output interfaces 507, and/or, one or more operating systems 508, such as Windows
ServerTM, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM etc..
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In several embodiments provided herein, it should be understood that disclosed system, device and method can be with
It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the unit
It divides, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components
It can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, it is shown or
The mutual coupling, direct-coupling or communication connection discussed can be through some interfaces, the indirect coupling of device or unit
It closes or communicates to connect, can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of software functional units.
If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can store in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially
The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words
It embodies, which is stored in a storage medium, including some instructions are used so that a computer
Equipment (can be personal computer, server or the network equipment etc.) executes the complete of each embodiment the method for the present invention
Portion or part steps.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only
Memory), random access memory (RAM, Random Access Memory), magnetic or disk etc. are various can store journey
The medium of sequence code.
The above, the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although referring to before
Stating embodiment, invention is explained in detail, those skilled in the art should understand that: it still can be to preceding
Technical solution documented by each embodiment is stated to modify or equivalent replacement of some of the technical features；And these
It modifies or replaces, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (10)
1. a kind of method for searching network, which is characterized in that the described method includes:
Generate received signal strength indicator RSSI frequency swept waveform figure, wherein the horizontal axis of the RSSI frequency swept waveform figure indicates frequency point
Number, the longitudinal axis of the RSSI frequency swept waveform figure indicates the RSSI value of the frequency point, between adjacent frequency between be divided into it is default
Value；
Obtaining the rising edge of reception signal and failing edge in the RSSI frequency swept waveform figure includes:
In the RSSI frequency swept waveform figure, the sliding phase reducing of front window and rear window is carried out, the sliding is successively stored and subtracts each other
Operate obtained numerical value, wherein the front window and rear window include same integer frequency point, and the front window and rear window are without friendship
Collection, the failing edge are the corresponding failing edge of the rising edge；
It determines the distance of the rising edge and failing edge, and signal bandwidth is determined according to the distance of the rising edge and failing edge；
According to the signal bandwidth identification signal standard；
Net is searched by signaling mode trial.
2. the method according to claim 1, wherein described obtain in the RSSI frequency swept waveform figure receives signal
Rising edge and failing edge further include:
1) the first numerical value and second value are determined from the numerical value that the sliding phase reducing obtains, and records first number
The location index of the location index of value and the second value, the left and right that first numerical value is less than first numerical value are adjacent
Numerical value, the second value is greater than the adjacent numerical value in left and right of the second value；
2) minimum value is determined from first numerical value, and the position of the minimum value is determined according to the location index of first numerical value
Index is set, the determining and matched maximum value of the minimum value from the second value, according to the position rope of the second value
Draw the location index for determining the maximum value, wherein the location index of the maximum value is after the location index of the minimum value
Face, and the absolute value of the maximum value is greater than the absolute value of the minimum value and the product of the first predetermined threshold value；
3) it is obtained in the RSSI frequency swept waveform figure and is connect according to the location index of the minimum value and the location index of maximum value
The one group of rising edge and failing edge of the collection of letters number, and will be between the location index of the maximum value and the location index of minimum value
Distance of the difference as one group of rising edge and failing edge；
4) minimum value and maximum value are reset, repeats the operation of step 3 and step 4, until minimum value is greater than second
Predetermined threshold value obtains multiple groups rising edge and failing edge that signal is received in the RSSI frequency swept waveform figure.
3. method according to claim 1 or 2, which is characterized in that described according to the signal bandwidth identification signal standard
Include:
If the signal bandwidth is less than 1M, signaling mode is global system for mobile communications GSM；
If the signal bandwidth is not less than 1M and is not more than 6M, signaling mode is the general of common file dialog UTRA or evolution
Wireless access E-UTRA；
If the signal bandwidth is greater than 6M, signaling mode E-UTRA.
4. the method according to claim 1, wherein the generation received signal strength indicator RSSI frequency swept waveform
Before figure, further includes:
RSSI is detected by antenna port.
5. according to the method described in claim 4, it is characterized in that, the generation received signal strength indicator RSSI frequency swept waveform
Figure includes:
After detecting RSSI by antenna port, the number according to each frequency point of the interval measurement of the preset value is corresponding
RSSI value obtains numbering and the corresponding relationship of corresponding RSSI value for each frequency point；
RSSI frequency swept waveform figure is generated according to the corresponding relationship.
6. a kind of user equipment (UE) characterized by comprising
Generation module, for generating received signal strength indicator RSSI frequency swept waveform figure, wherein the RSSI frequency swept waveform figure
Horizontal axis indicates the number of frequency point, and the longitudinal axis of the RSSI frequency swept waveform figure indicates the RSSI value of the frequency point, between adjacent frequency
Between be divided into preset value；
Module is obtained, includes: for obtaining the rising edge of reception signal and failing edge in the RSSI frequency swept waveform figure
First processing units, for carrying out the sliding phase reducing of front window and rear window, successively in the RSSI frequency swept waveform figure
Store the obtained numerical value of sliding phase reducing, wherein the front window and rear window include same integer frequency point, and described
Without intersection, the failing edge is the corresponding failing edge of the rising edge for front window and rear window；
Determining module, for determining the distance of the rising edge and failing edge, and according to the distance of the rising edge and failing edge
Determine signal bandwidth；
Identification module, for according to the signal bandwidth identification signal standard；
Net module is searched, for searching net by signaling mode trial.
7. UE according to claim 6, which is characterized in that the acquisition module further include:
The second processing unit, for determining the first numerical value and second value from the numerical value that the sliding phase reducing obtains,
And the location index of first numerical value and the location index of the second value are recorded, first numerical value is less than described the
The adjacent numerical value in the left and right of one numerical value, the second value numerical value adjacent greater than the left and right of the second value；
Determination unit determines institute according to the location index of first numerical value for determining minimum value from first numerical value
The location index for stating minimum value, the determining and matched maximum value of the minimum value from the second value, according to described second
The location index of numerical value determines the location index of the maximum value, wherein the location index of the maximum value is in the minimum value
Location index behind, and the absolute value of the maximum value be greater than the absolute value of the minimum value and multiplying for the first predetermined threshold value
Product；
Third processing unit, for obtaining the RSSI according to the location index of the minimum value and the location index of maximum value
Receive the one group of rising edge and failing edge of signal in frequency swept waveform figure, and by the location index of the maximum value and minimum value
Distance of the difference as one group of rising edge and failing edge between location index；
Acquiring unit repeats the behaviour of determination unit and third processing unit for resetting the minimum value and maximum value
Make, until minimum value is greater than the second predetermined threshold value, obtains the multiple groups rising edge for receiving signal in the RSSI frequency swept waveform figure
And failing edge.
8. UE according to claim 6 or 7, which is characterized in that the identification module, if being specifically used for the signal bandwidth
Less than 1M, then signaling mode is global system for mobile communications GSM；If the signal bandwidth is not less than 1M and is not more than 6M, believe
Number standard is the common file dialog E-UTRA of common file dialog UTRA or evolution；If the signal bandwidth is greater than 6M, believe
Number standard is E-UTRA.
9. UE according to claim 6, which is characterized in that the generation module generates received signal strength indicator RSSI and sweeps
Before frequency waveform diagram, further includes:
Detection module, for detecting RSSI by antenna port.
10. UE according to claim 9, which is characterized in that the generation module includes:
Measuring unit, for after detecting RSSI by antenna port, according to each frequency point of the interval measurement of the preset value
The corresponding RSSI value of number, obtain each frequency point number and the corresponding relationship of corresponding RSSI value；
Generation unit, for generating RSSI frequency swept waveform figure according to the corresponding relationship.
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| CN112804640A (en) * | 2020-12-29 | 2021-05-14 | 西北大学 | Anti-interference cross-protocol communication method and system based on energy perception |
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| CN111050378B (en) * | 2019-12-12 | 2022-05-20 | Oppo广东移动通信有限公司 | Network searching method and device and electronic equipment |
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Effective date of registration: 20210422 Address after: Unit 3401, unit a, building 6, Shenye Zhongcheng, No. 8089, Hongli West Road, Donghai community, Xiangmihu street, Futian District, Shenzhen, Guangdong 518040 Patentee after: Honor Device Co.,Ltd. Address before: 518129 Bantian HUAWEI headquarters office building, Longgang District, Guangdong, Shenzhen Patentee before: HUAWEI TECHNOLOGIES Co.,Ltd. |