CN105744599A - Cell search method and apparatus, and user equipment - Google Patents
Cell search method and apparatus, and user equipment Download PDFInfo
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- CN105744599A CN105744599A CN201610111155.1A CN201610111155A CN105744599A CN 105744599 A CN105744599 A CN 105744599A CN 201610111155 A CN201610111155 A CN 201610111155A CN 105744599 A CN105744599 A CN 105744599A
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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
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/20—Selecting an access point
Abstract
The embodiment of the invention discloses a cell search method and apparatus, and user equipment. The method comprises the following steps: determining a target frequency point in a frequency band supported by the user equipment, wherein the frequency band comprises at least one frequency point, and the target frequency point is a frequency point whose energy value is higher than a preset energy threshold in the at least one frequency point; carrying out cell search on the target frequency point, and detecting whether a first cell exists at the target frequency point according to a search result of the cell search; and if so, storing the target frequency point to carry out residence on all cells at the target frequency point in sequence. By adopting the method disclosed by the embodiment of the invention, the problem of network disconnection due to the failure of search of an accessible secondary cell at a non-historical frequency point can be solved.
Description
Technical field
The application relates to communication technical field, particularly relates to a kind of small region search method, device and subscriber equipment.
Background technology
In a wireless communication system, subscriber equipment (userequipment, referred to as " UE ") it is in connected state and goes out service area as gone out a certain WCDMA (widebandcodedivisionmultipleaccesswireless, referred to as " WCDMA ") community time, need to perform to search net flow process, with redefine out can be resident community, thus recovering normal service, it is as follows that it searches net flow process: first the history frequency of the resident mistake of UE is sequentially carried out cell searching, acquire all of WCDMA community under each history frequency, and attempt resident successively.If searching the complete UE of net and still failing resident to a certain community, then the UE frequency range (band) supported is initiated full frequency band and search net, namely successively the part frequency that the energy in the UE band supported is higher is carried out cell searching, acquire the community (Qiang community) that under this frequency, energy is the highest, and successively this community is attempted resident.If it is not resident yet to carry out UE after full frequency band searches net, and UE supports other network formats, then handover network standard carries out searching net.If UE is not resident yet after switching standard, then can there is lost network (the above-mentioned UE under net flow process that searches is also at lost network state).
Search in network process at this full frequency band, what the cell searching carried out due to the frequency that energy is higher acquired is only this frequency Xia Qiang community, if in environment, a certain frequency (non-history frequency) Xia Qiang community is unsatisfactory for resident condition in some cases, such as this Qiang community is set forbids accessing, but when there is accessible Ci Qiang community (energy is lower than this Qiang community) under this frequency, then cannot search out this accessible Ci Qiang community, and cause lost network.
Summary of the invention
The embodiment of the present invention provides a kind of small region search method, device and subscriber equipment, it is possible to the problem solving to cause lost network because searching Ci Qiang community accessible under non-history frequency.
First aspect, embodiments provides a kind of small region search method, including:
Target frequency is determined from the frequency range of subscriber equipment support；Carry out cell searching for described target frequency, and the Search Results according to described cell searching detects whether there is the first community under described target frequency；If existing, then store described target frequency, to initiate resident successively to all communities under described target frequency.
Wherein, described frequency range includes at least one frequency, and described target frequency is that at least one frequency described, energy value is higher than the frequency of preset energy threshold value, and this target frequency can be one or more.Further, this first community may refer to the arbitrary community under each target frequency, community (Qiang community) as the highest in the energy value under this target frequency.
Optionally, in certain embodiments, the described target frequency of described storage, it is possible to particularly as follows:
Described target frequency is added in the history frequency list of described subscriber equipment.
Wherein, the frequency in this history frequency list can include the frequency of the subscriber equipment once resident community of success and history frequency and this target frequency (being also possible that this searches the frequency added before net flow process by the technical scheme of the embodiment of the present invention).Thus when the frequency in this history frequency list is carried out specifying frequency to search by next round, the all communities (all communities including under target frequency) under each frequency in this history frequency list can be acquired successively, and initiate resident successively to each community, and detect whether resident success.
Further, in certain embodiments, described when carrying out cell searching for described target frequency the mode of cell searching can search for frequency list, then described first community is the community that under described target frequency, energy value is the highest；Described method also includes:
Described first community is initiated resident；If the resident first community failure of described subscriber equipment, then carry out the frequency in the history frequency list that with the addition of described target frequency specifying frequency to search, acquire all communities under the frequency in described history frequency list；Successively each community under the frequency in described history frequency list is initiated resident.Thus when there is accessible Ci Qiang community, subscriber equipment is able to detect that this Ci Qiang community success this Ci Qiang community resident, to prevent long-time lost network.
Optionally, in certain embodiments, described target frequency can include multiple；Described that described first community initiation is resident, including:
Successively the first community under each target frequency is initiated resident；When to the first community under multiple described target frequencies all resident failed time, it is determined that described subscriber equipment resident first community failure.
Optionally, in certain embodiments, if described target frequency is only one, then can detect to this first community resident failed time, namely can be identified as described subscriber equipment resident first community failure.
Further, in certain embodiments, described carry out the frequency in the history frequency list that with the addition of described target frequency specifying frequency to search before, described method also includes:
When the resident first community failure of described subscriber equipment, obtain the network formats that described subscriber equipment is supported；Each network formats that current network standard is sequentially switched to described subscriber equipment support carries out cell searching, acquires the community under this network formats；Successively each community under this network formats acquired is initiated resident；If all resident failure in all communities under the network formats support the described subscriber equipment acquired, then perform described step frequency in the history frequency list that with the addition of described target frequency being carried out and specifying frequency to search.Thus initiating a new round to search net, to determine the community that subscriber equipment can be resident.Optionally, it can be search the first round to net after unsuccessfully to initiate immediately that this new round searches net flow process, or is meeting the net condition of again searching preset such as what initiate after keeping out of the way according to the avoidance mechanism of Preset Time, and the embodiment of the present invention does not limit.
Further, in certain embodiments, described from the frequency range of subscriber equipment support, determine target frequency before, described method also includes:
When the connected state described subscriber equipment being detected is in out service area, carry out the frequency in the history frequency list of described subscriber equipment specifying frequency to search；If described subscriber equipment persistent district is failed after described appointment frequency is searched, then from the frequency range of subscriber equipment support, determine the step of target frequency described in performing.
Optionally, also can initiate the frequency of the adjacent area of community corresponding when going out service area to specify frequency to search.
Second aspect, embodiments provides also a kind of cell search apparatus, including: frequency determines unit, search unit and memory element；Wherein,
Frequency determines unit, for determining target frequency from the frequency range of subscriber equipment support.
Search unit, for carrying out cell searching for described target frequency, and the Search Results according to described cell searching detects whether there is the first community under described target frequency；
Memory element, for when the testing result of described search unit is for existing described first community, storing described target frequency, to initiate resident successively to all communities under described target frequency.
Wherein, the frequency range of subscriber equipment support includes at least one frequency, and described target frequency is that at least one frequency described, energy value is higher than the frequency of preset energy threshold value, and this target frequency can be one or more.Further, this first community may refer to the arbitrary community under each target frequency, community (Qiang community) as the highest in the energy value under this target frequency.
Optionally, in certain embodiments, described memory element can be specifically for:
Described target frequency is added in the history frequency list of described subscriber equipment.
Wherein, the frequency in this history frequency list can include the frequency of the subscriber equipment once resident community of success and history frequency and this target frequency (being also possible that this searches the frequency added before net flow process by the technical scheme of the embodiment of the present invention).Thus when next round carries out that the frequency in this history frequency list carries out specify frequency to search, the all communities (all communities including under target frequency) under each frequency in this history frequency list can be acquired successively, and initiate resident successively to each community, and detect whether resident success.
Further, in certain embodiments, described when carrying out cell searching for described target frequency the mode of cell searching be that frequency list is searched, then described first community is the community that under described target frequency, energy value is the highest；Described device may also include that
Resident element, for initiating resident to described first community；
Described search unit, is additionally operable to when the resident first community failure of described subscriber equipment, carries out the frequency in the history frequency list that with the addition of described target frequency specifying frequency to search, acquires all communities under the frequency in described history frequency list；
Described resident element, is additionally operable to initiate resident to each community under the frequency in described history frequency list successively.
Thus when there is accessible Ci Qiang community, subscriber equipment is able to detect that this Ci Qiang community success this Ci Qiang community resident, to prevent long-time lost network.
Optionally, in certain embodiments, described target frequency can include multiple；Resident concrete mode is initiated in described first community by described resident element:
Successively the first community under each target frequency is initiated resident；
When to the first community under multiple described target frequencies all resident failed time, it is determined that described subscriber equipment resident first community failure.
Optionally, in certain embodiments, if described target frequency is only one, then resident element can detect to this first community resident failed time, namely can be identified as described subscriber equipment resident first community failure.
Further, in certain embodiments, described device also includes:
Standard acquiring unit, for when the resident first community failure of described subscriber equipment, obtaining the network formats that described subscriber equipment is supported；
Described search unit, each network formats being additionally operable to be sequentially switched to current network standard described subscriber equipment support carries out cell searching, acquires the community under this network formats；
Described resident element, it is additionally operable to initiate resident to each community under this network formats acquired successively, and all communities under the network formats that the described subscriber equipment that acquires is supported all resident failed time, notify that the frequency in the history frequency list that with the addition of described target frequency is carried out specifying frequency to search by described search unit.Thus initiating a new round to search net, to determine the community that subscriber equipment can be resident.
Further, in certain embodiments,
Described search unit, it is additionally operable to when the connected state described subscriber equipment being detected is in out service area, carry out the frequency in the history frequency list of described subscriber equipment specifying frequency to search, and after described appointment frequency is searched during described subscriber equipment persistent district failure, notify that described frequency determines that unit determines target frequency from the frequency range of subscriber equipment support.
Optionally, also can initiate the frequency of the adjacent area of community corresponding when going out service area to specify frequency to search.
The third aspect, the embodiment of the present invention additionally provides a kind of computer-readable storage medium, and described computer-readable storage medium has program stored therein, and described program includes all or part of step of the small region search method of above-mentioned first aspect when performing.
Fourth aspect, the embodiment of the present invention additionally provides a kind of subscriber equipment, including: communication interface, memorizer and baseband processor, described baseband processor is connected with described communication interface and described memorizer respectively；Wherein,
Described memorizer is used for storing drive software；
Described baseband processor reads described drive software from described memorizer and performs all or part of step of small region search method of above-mentioned first aspect under the effect of described drive software.
Implement the embodiment of the present invention, have the advantages that
In the embodiment of the present invention, by determining that from the frequency range including multiple frequency of subscriber equipment support energy value is higher than the target frequency of preset energy threshold value, and described target frequency is carried out cell searching, detect and whether there is community under this target frequency, and when there is community, this target frequency is stored, to realize the search of all communities under this target frequency, successively all communities under target frequency are initiated resident, thus avoid the Qiang community that there is a certain non-history frequency in the environment be unsatisfactory for resident condition as be set to forbid the situations such as access cause cannot be resident, but exist can be resident Ci Qiang community time, this Ci Qiang community cannot be searched, and the problem causing long-time lost network.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below.
Fig. 1 is the network architecture diagram of a kind of wireless communication system that the embodiment of the present invention provides；
Fig. 2 is the structural representation of a kind of subscriber equipment that the embodiment of the present invention provides；
Fig. 3 is the schematic flow sheet of a kind of small region search method that the embodiment of the present invention provides；
Fig. 4 is the mutual schematic diagram of a kind of small region search method that the embodiment of the present invention provides；
Fig. 5 is the structural representation of a kind of cell search apparatus that the embodiment of the present invention provides；
Fig. 6 is the structural representation of the another kind of subscriber equipment that the embodiment of the present invention provides.
Detailed description of the invention
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 described.
It should be understood that, the technical scheme of the embodiment of the present invention can be applied particularly in the wireless communication system being come distinguishing cell by frequency and scrambler, such as WCDMA (widebandcodedivisionmultipleaccesswireless, referred to as " WCDMA ") system, being also possible to be applied to future network, the embodiment of the present invention does not limit.
Should be understood that the wireless communication system of the embodiment of the present invention can include Wireless Communication Equipment and subscriber equipment (userequipment, referred to as " UE ").Wherein, this Wireless Communication Equipment can be base station, it is also possible to for access point, for providing communication service at least one subscriber equipment.One or more transmitting antenna and one or more reception antenna is adopted to carry out signal transmission between this Wireless Communication Equipment and subscriber equipment.As it is shown in figure 1, be the network architecture diagram of a kind of wireless communication system that provides of the embodiment of the present invention, can be communicated by one or more antennas between Wireless Communication Equipment 1 and any user equipment 2, Fig. 1 is described for multiple antennas.Further alternative, in Fig. 1, the wireless communication system at Wireless Communication Equipment and subscriber equipment place can also include other network entities such as mobile management entity, and the embodiment of the present invention does not limit.
In embodiments of the present invention, subscriber equipment also can be referred to as terminal (terminal), wireless terminal, mobile platform (mobilestation, referred to as " MS ") or mobile terminal (mobileterminal) etc..It can through wireless access network (such as RAN, radioaccessnetwork) communicate with one or more core net, subscriber equipment can be mobile terminal, such as mobile phone (or being called " honeycomb " phone), panel computer, personal digital assistant and the computer with mobile terminal, can also is that portable, pocket, hand-held, built-in computer or vehicle-mounted mobile device, they exchange language and/or data with wireless access network.In embodiments of the present invention, when Wireless Communication Equipment is base station, this base station can be the base station in WCDMA, such as NodeB, or the base station in future network, etc., the embodiment of the present invention does not limit.
Below the structure of the subscriber equipment in above-mentioned wireless communication system is introduced, as shown in Figure 2, for subscriber equipment each in this wireless communication system, including radio frequency (radiofrequency, referred to as " RF ") part and baseband processor, wherein, RF part include antenna, radio-frequency front-end (RFfront-end, referred to as " RFFE "), radio frequency chip (RFintegratedcircuit, referred to as " RFIC ").RF can be used for transmit (sendaisle) on antenna after the transmission signal modulation of base band, it may also be used for issues the baseband processor of rear end after being demodulated by the signal of eating dishes without rice or wine received by antenna to carry out processing (reception passage) according to communication protocol.Wherein, RFFE includes: duplexer, is used for realizing aerial array, is all coupled to antenna by transmitting path and receiving path (such as the direction of arrow) so that antenna can send signal or receive signal or simultaneously receiving and transmitting signal；Also include power amplifier (poweramplifier, referred to as " PA "), be mainly used in transmitting path to send signal carry out power amplification, in order to this carry out power amplification after transmission signal can send from antenna.RFIC is modem module, modulation refers to, in transmitting path, the low frequency signal (being called for short " baseband signal ") of base band is become higher frequency RF signals (i.e. up-conversion, specifically can upconverter as shown in Figure 2 realize), demodulation refer to accept path higher frequency RF signals is demodulated into baseband signal (i.e. down coversion, specifically can as shown in Figure 2 low-converter realization).Up/down converter i.e. frequency mixer, upconverter is by generating higher frequency RF signals by baseband signal with local oscillation signal mixing, thus realizing modulation；Low-converter is by generating baseband signal by higher frequency RF signals with local oscillation signal mixing, thus realizing demodulation.Optionally, receiving path may also include low-noise amplifier (lownoiseamplifier, referred to as " LNA ") before demodulation, for being amplified to received signal, in Fig. 2 shown in dotted portion.Additionally, baseband signal is mainly processed by baseband portion (baseband processor) according to communication protocol, it can process the various types of communication agreements such as 2/3/4G.
It should be understood that, the technical scheme of the embodiment of the present invention can be applied particularly in above-mentioned baseband processor, this baseband processor can include the baseband processing unit processing physical layer task and the processor processing high-rise task, wherein, this high level includes Non-Access Stratum (non-accessstratum, referred to as " NAS ") and Access Layer (accessstratum, referred to as " AS ").
Should be understood that when detecting that subscriber equipment connected state is in out service area, then need to carry out cell searching and reacquire accessible community.For WCDMA system, cell searching can be initiated by WCDMA Access Layer, and by the search to WCDMA community that may be present in wireless environment that WCDMA physical layer completes, namely this WCDMA community is distinguished by frequency and scrambler.Wherein, the frequency that there is community in environment can be acquired by frequency sweep, and the scrambler of community can be acquired by cell searching.In addition, the energy of community also can be acquired by cell searching, as being used for indicating the received signal strength indicator (receivedsignalstrengthindication of energy information, referred to as " RSSI "), received signal code power (receivedsignalcodepower, referred to as " RSCP ") or signal disturbing strength ratio Ec/N0 (or being called " ECN0 ") etc..Wherein, Ec refers to the energy of the energy of the unique user chip as received in community, and unit is joule, and N0 refers to noise jamming, and this Ec/N0 is usually used in weighing the quality of pilot channel.
Wherein, frequency is searched, candidate community is searched, frequency list is searched by the difference of way of search, cell searching can be divided into appointment.Wherein, specifying the way of search that frequency is searched is issued single frequency point information by Access Layer, on this frequency, the scrambler of community that may be present is found by physical layer, so that it is determined that go out the community that namely this scrambler is corresponding, community searched under this frequency, and the community searched under this frequency is returned to Access Layer；Candidate community is searched and is also called appointment scrambler and searches, and is issued the frequency of community and scrambler to physical layer by Access Layer, so that physical layer saves the process of descrambling code；The implementation that frequency list is searched is searched with appointment frequency, refer to that Access Layer issues a frequency list, by physical layer, all frequencies in this frequency list are carried out cell searching, and the Search Results of frequency the strongest for energy is reported, return to the information of each frequency Xia Qiang community in Access Layer frequency list, this each frequency Xia Qiang community, further according to the information of each frequency Xia Qiang community returned, is attempted resident by Access Layer successively.In addition, search and network process there is also full frequency band search net, it refers to that successively according to certain frequency number, the UE frequency range (band) supported being carried out energy value in the part frequency behind interval is higher than the frequency of a certain threshold value, and take the multiple frequency in the adjacent front and back of this frequency and carry out frequency sweep together, therefrom determine the higher frequency as maximum in RSSI value of energy, and the initiation frequency list of this frequency is searched, acquire this frequency Xia Qiang community and initiate resident.
The embodiment of the invention discloses a kind of small region search method, device and subscriber equipment, it is possible to the problem solving to cause lost network because Ci Qiang community accessible under non-history frequency cannot be searched.Describe in detail individually below.
Refer to Fig. 3, be the schematic flow sheet of a kind of small region search method of the embodiment of the present invention.Concrete, as it is shown on figure 3, the described small region search method of the embodiment of the present invention may comprise steps of:
101, from the frequency range of subscriber equipment support, target frequency is determined.
Wherein, the frequency range (band) that subscriber equipment and UE support includes at least one frequency, described target frequency is that at least one frequency described, energy value is higher than the frequency of preset energy threshold value, and this target frequency can be one or more (two and more than).Further, this first community may refer to the arbitrary community under each target frequency, community (Qiang community) as the highest in the energy value under this target frequency.
In specific embodiment, before determining target frequency from the UE frequency range supported, when the connected state described subscriber equipment being detected is in out service area, also can carry out the frequency in the history frequency list of described subscriber equipment specifying frequency to search；If described subscriber equipment persistent district is failed after described appointment frequency is searched, then from the frequency range of subscriber equipment support, determine the step of target frequency described in performing.Wherein, frequency in this history frequency list can include frequency and the history frequency, the frequency of UE storage inside, adjacent area, persistent district frequency etc. of the UE once community that success is resident, it is also possible to includes this and searches the frequency added by the technical scheme of the embodiment of the present invention before net flow process.
Concrete, the connected state of UE is in out service area, such as due to the energy of current area scrambler too low, to current area decodes unsuccessfully, because causing poor signal etc. away from base station, cause when UE connected state is in out service area, UE needs execution to search net flow process, namely carry out cell searching, communicate redefining out this UE community having access to.Specifically, UE, when going out service area, can be sequentially carried out appointment frequency to the frequency in the history frequency list with storage of the adjacent area and search, acquire all communities that the frequency in this history frequency list is corresponding, and attempt resident successively.
Further, if all resident failure in all communities that the frequency in this history frequency list is corresponding, then can carry out full frequency band and search net, from multiple frequencies that the UE frequency range supported includes, determine that energy value is higher than the target frequency of preset energy threshold value.Concrete, searching the net stage at full frequency band, UE can first carry out coarse scan, can determine that energy value is higher than the frequency of preset energy threshold value, and take n frequency before and after it, altogether obtain (2n+1) individual frequency from multiple frequencies that the frequency range supported includes.Then this (2n+1) individual frequency is carefully swept, from this (2n+1) individual frequency, namely screen the frequency that energy value is the highest, and frequency the highest for this energy value is defined as target frequency.Wherein, this energy value can be specially RSSI value, and this RSSI can obtain according to RSCP and the ECN0 Data-Statistics obtained, and repeats no more herein.
102, carry out cell searching for described target frequency, and the Search Results according to described cell searching detects whether there is the first community under described target frequency.
Concrete, this first community may refer to this target frequency Xia Qiang community, namely the community that energy value (such as RSSI, RSCP, ECN0 value etc.) is the highest, the cell searching then carried out for this target frequency can be searched for frequency list, so that it is determined that go out whether to exist under this target frequency community and therefrom determine Qiang community.
If 103 exist, then store described target frequency, to initiate resident successively to all communities under described target frequency.
Optionally, the described target frequency of described storage, it is possible to particularly as follows: described target frequency is added in the history frequency list of described subscriber equipment.
Further, described when carrying out cell searching for described target frequency the mode of cell searching can search for frequency list, then described first community is the community (Qiang community) that under described target frequency, energy value is the highest；Then described first community also can be initiated resident by subscriber equipment；If the resident first community failure of described subscriber equipment, then carry out the frequency in the history frequency list that with the addition of described target frequency specifying frequency to search, acquire all communities under the frequency in described history frequency list；Successively each community under the frequency in described history frequency list is initiated resident.Concrete, when detect there is the first community under this target frequency time, this target frequency can be stored, such as the frequency of this first community and target frequency are added in the history frequency list of this UE, this history frequency list is updated, to realize all communities under target frequency being scanned for and initiating resident.
Optionally, described target frequency can include multiple；Described that described first community initiation is resident, it is possible to particularly as follows: successively the first community under each target frequency is initiated resident；When to the first community under multiple described target frequencies all resident failed time, it is determined that described subscriber equipment resident first community failure.
Optionally, described to described first community initiate resident, it is possible to if particularly as follows: described target frequency is only one, then can detect to this first community resident failed time, it is determined that for described subscriber equipment resident first community failure.
Further, described carry out the frequency in the history frequency list that with the addition of described target frequency specifying frequency to search before, when the resident first community failure of described subscriber equipment, also can obtain the network formats that described subscriber equipment is supported；Each network formats that current network standard is sequentially switched to described subscriber equipment support carries out cell searching, acquires the community under this network formats；Successively each community under this network formats acquired is initiated resident；If all resident failure in all communities under the network formats support the described subscriber equipment acquired, then perform described step frequency in the history frequency list that with the addition of described target frequency being carried out and specifying frequency to search.Concrete, if it is not resident yet to carry out UE after full frequency band searches net, and UE is when supporting other network formats, then changeable network formats searches net, as switched to search Long Term Evolution (longtermevolution from search WCDMA community, referred to as " LTE ") community or global system for mobile communications (globalsystemofmobilecommunication, referred to as " GSM ") community.The UE community to searching still resident failure after handover network standard, then be sequentially carried out appointment frequency and search, carry out second and take turns and search net all frequencies in the history frequency list that with the addition of this target frequency.Thus in the environment a certain frequency Xia Qiang community be set to forbid access causes cannot be resident, but exist can be resident Ci Qiang community time, adopt the embodiment of the present invention can search out this Ci Qiang community success this Ci Qiang community resident, to prevent long-time lost network.
In embodiments of the present invention, by determining that from the frequency range including multiple frequency of subscriber equipment support energy value is higher than the target frequency of preset energy threshold value, and described target frequency is carried out cell searching, detect and whether there is community under this target frequency, when there is community, this target frequency is stored, to realize the search of all communities under this target frequency, successively all communities under target frequency are initiated resident, thus avoid the Qiang community that there is a certain non-history frequency in the environment be unsatisfactory for resident condition as be set to forbid the situations such as access cause cannot be resident, but exist can be resident Ci Qiang community time, this Ci Qiang community cannot be searched, and the problem causing long-time lost network.
Further, refer to Fig. 4, be the mutual schematic diagram of a kind of small region search method of the embodiment of the present invention.In embodiments of the present invention, assumptions' environment go out except community corresponding during service area except Serving cell and UE, on a non-history frequency, there is a Qiang community being set to forbid accessing and an accessible Ci Qiang community, then can search for this Ci Qiang community by the embodiment of the present invention, and success this Ci Qiang community resident, described further below.Concrete, as shown in Figure 4, the described small region search method of the embodiment of the present invention may comprise steps of:
201, carry out each frequency in history frequency list successively specifying frequency to search.
202, persistent district failure.
Concrete, too low or to Serving cell the scrambler of energy at Serving cell decodes unsuccessfully or because causing poor signal etc. away from base station, when causing Radio Link Failure (radiolinkfail), W Access Layer can issue the frequency of this Serving cell and scrambler carries out candidate community to W physical layer and searches, if searching for successfully, then the community searched is initiated resident；If searching for unsuccessfully, then can determine that UE goes out service area, and report.Wherein, W Access Layer represents the Access Layer (hereinafter referred to as " Access Layer ") under WCDMA system, and W physical layer represents the physical layer (hereinafter referred to as " physical layer ") under this WCDMA system.
After determining that UE goes out service area, can initiate each frequency in history frequency list to specify frequency to search, also can initiate to specify frequency to search to the frequency that the adjacent area of above-mentioned Serving cell is corresponding simultaneously, if search can be resident community, then this community resident, otherwise, if do not search can be resident community, then enter full frequency band search net flow process.
203, full frequency band searches net, carries out coarse scan respectively and carefully sweeps.
204, target frequency is acquired.
Search the net stage at full frequency band, can determine that energy value is higher than the frequency of preset energy threshold value as target frequency from multiple frequencies that the UE frequency range supported includes.Concrete, the frequency range (band) that this UE can be supported by UE carries out coarse scan, such as the part frequency of this band is carried out RSSI frequency sweep by 15, interval frequency, this RSSI frequency sweep namely the frequency (the part frequency behind interval) in this band is carried out rssi measurement, and according to measuring the height of the RSSI value obtained, judge whether the frequency of search would be likely to occur WCDMA community.In general, the probability that the frequency that RSSI value is higher exists community is more big.Thus, one or more frequencies of the RSSI value RSSI threshold value such as default higher than preset energy threshold value can be filtered out from the UE band supported according to the RSSI value that measurement obtains.For the frequency filtered out, take n frequency (assuming n=7) before and after it, often organize and altogether obtain 15 frequencies.Then this often organize 15 frequencies carefully sweep, namely these 15 frequencies are carried out Physical Shared Channel (physicalsharedchannel, referred to as " PSCH ") frequency sweep, from these 15 frequencies, screen the frequency that RSSI value is the highest, and frequency the highest for this RSSI value is defined as target frequency.
205, this target frequency is carried out frequency list to search.
206, this target frequency Xia Qiang community is acquired.
207, this target frequency is added history frequency list, and attempt this Qiang community resident.
Further, after acquiring this target frequency, this target frequency can be initiated frequency list and search, and on this frequency, solve Qiang community (the first community).Concrete, this target frequency can be carried out slot synchronization, frame synchronization, and find scrambler in preset scrambler group, eventually find the Ji Qiang community, community of the energy the strongest (as the highest in RSSI) existed on this target frequency namely the community that this scrambler found is corresponding.After finding scrambler, CPICH Common Pilot Channel (CommonPilotChannel, referred to as " CPICH ") is measured, and measured value is reported.The frequency of this Qiang community this target frequency i.e. is added history frequency list.
208, this Qiang community is unsatisfactory for resident condition, resident failure.
After solving this Qiang community, can initiating resident to this Qiang community, now, it has been found that this Qiang community is unsatisfactory for resident condition, as found, community is set to forbid accessing by Bar, Ji Gaiqiang community, this Qiang community failure resident.Searching the failure of net stage UE persistent district at full frequency band, when namely attempting all failures of resident all Qiang communities solved, also changeable network formats carries out cell searching, carries out searching net as being switched to LTE or GSM from WCDMA.If search can be resident community, then this community resident, otherwise, if do not search can be resident community, then the first round searches net and completes, and starts second and takes turns and search net.Optionally, this second take turns search net and a new round to search net flow process can be search the first round to net after unsuccessfully to initiate immediately, or meeting the net condition of again searching preset such as what initiate after keeping out of the way according to the avoidance mechanism of Preset Time, the embodiment of the present invention does not limit.
209, carry out each frequency in history frequency list successively specifying frequency to search.
210, acquire and there is Liang Ge community under a frequency.
If the first round searches net and terminates UE resident any community not yet, then carry out second and take turns and search net, carry out each frequency in history frequency list successively specifying frequency to search.It should be noted that history frequency list now includes the above-mentioned target frequency being newly added.Assume that the appointment frequency at this target frequency is searched in result, comprise Qiang community and Ci Qiang community；
211, resident Qiang community is attempted.
212, this Qiang community is unsatisfactory for resident condition, resident failure.
213, resident Ci Qiang community is attempted.
214, resident success, recovers normal service.
Concrete, obtain this Qiang community and Ci Qiang community in search after, UE attempts resident Qiang community, it has been found that this Qiang community is unsatisfactory for resident condition, and as found by bar, resident failure, it tries resident Ci Qiang community, resident success, UE recovers normal service.
In embodiments of the present invention, add in history frequency list by available frequency this target frequency i.e. that will get so that upper once carry out history frequency search time, it is possible to by specifying the mode that frequency is searched search communities all under this frequency and initiate resident.Thus avoid the Qiang community that there is a certain non-history frequency in the environment be set to forbid the situations such as access cause cannot be resident, but exist can be resident Ci Qiang community time, it is impossible to search this Ci Qiang community, and the problem causing long-time lost network.
Refer to Fig. 5, be the structural representation of a kind of cell search apparatus of the embodiment of the present invention.Concrete, as it is shown in figure 5, the described cell search apparatus of the embodiment of the present invention can include frequency determines unit 11, search unit 12 and memory element 13.Wherein,
Described frequency determines unit 11, for determining target frequency from the frequency range of subscriber equipment support.
Wherein, the frequency range (band) that subscriber equipment and UE support includes at least one frequency (or being called " frequency range is divided into one or more frequency "), described target frequency is that at least one frequency described, energy value is higher than the frequency of preset energy threshold value, and this target frequency can be one or more.Further, this first community may refer to the arbitrary community under each target frequency, community (Qiang community) as the highest in the energy value under this target frequency.
Described search unit 12, for carrying out cell searching for described target frequency, and the Search Results according to described cell searching detects whether there is the first community under described target frequency.
Further, in certain embodiments,
Described search unit 12, it is additionally operable to when the connected state described subscriber equipment being detected is in out service area, carry out the frequency in the history frequency list of described subscriber equipment specifying frequency to search, and after described appointment frequency is searched during described subscriber equipment persistent district failure, notify that described frequency determines that unit 11 determines target frequency from the frequency range of subscriber equipment support.
Wherein, the above-mentioned frequency in history frequency list can include frequency and the history frequency, the frequency of UE storage inside, adjacent area, persistent district frequency etc. of the UE once community that success is resident, it is also possible to includes this and searches the frequency added by the technical scheme of the embodiment of the present invention before net flow process.
Described memory element 13, for when the testing result of described search unit 12 is for existing described first community, storing described target frequency, to initiate resident successively to all communities under described target frequency.
Optionally, in certain embodiments, described memory element 13 can be specifically for:
Described target frequency is added in the history frequency list of described subscriber equipment.
Further, described when carrying out cell searching for described target frequency the mode of cell searching can search for frequency list, then described first community is the community (Qiang community) that under described target frequency, energy value is the highest；Described device may also include (not shown):
Resident element 14, for initiating resident to described first community；
Described search unit 12, is additionally operable to when the resident first community failure of described subscriber equipment, carries out the frequency in the history frequency list that with the addition of described target frequency specifying frequency to search, acquires all communities under the frequency in described history frequency list；
Described resident element 14, is additionally operable to initiate resident to each community under the frequency in described history frequency list successively.
Concrete, this first community may refer to this target frequency Xia Qiang community, namely the community that energy value (such as RSSI, RSCP, ECN0 value etc.) is the highest, the cell searching then carried out for this target frequency can be searched for frequency list, so that it is determined that go out whether to exist under this target frequency community and therefrom determine Qiang community.
Further alternative, in certain embodiments, described target frequency can include multiple；Resident concrete mode is initiated in described first community by described resident element 14:
Successively the first community under each target frequency is initiated resident；
When to the first community under multiple described target frequencies all resident failed time, it is determined that described subscriber equipment resident first community failure.
Optionally, if described target frequency is only one, then described resident element 14 can detect to this first community resident failed time, it is determined that for described subscriber equipment resident first community failure.
Further, in certain embodiments, described device may also include that
Standard acquiring unit 15, for when the resident first community failure of described subscriber equipment, obtaining the network formats that described subscriber equipment is supported；
Described search unit 12, each network formats being additionally operable to be sequentially switched to current network standard described subscriber equipment support carries out cell searching, acquires the community under this network formats；
Described resident element 14, it is additionally operable to initiate resident to each community under this network formats acquired successively, and all communities under the network formats that the described subscriber equipment that acquires is supported all resident failed time, notify that the frequency in the history frequency list that with the addition of described target frequency is carried out specifying frequency to search by described search unit 12.
In specific embodiment, if the UE community to searching still resident failure after handover network standard, then all frequencies in the history frequency list that with the addition of this target frequency are sequentially carried out appointment frequency and search, carry out second and take turns and search net.Thus in the environment a certain frequency Xia Qiang community be set to forbid access causes cannot be resident, but exist can be resident Ci Qiang community time, adopt the embodiment of the present invention can search out this Ci Qiang community success this Ci Qiang community resident, to prevent long-time lost network.
In embodiments of the present invention, by determining that from the frequency range including multiple frequency of subscriber equipment support energy value is higher than the target frequency of preset energy threshold value, and described target frequency is carried out cell searching, detect and whether there is community under this target frequency, when there is community, this target frequency is stored, to realize the search of all communities under this target frequency, successively all communities under target frequency are initiated resident, thus avoid the Qiang community that there is a certain non-history frequency in the environment be unsatisfactory for resident condition as be set to forbid the situations such as access cause cannot be resident, but exist can be resident Ci Qiang community time, this Ci Qiang community cannot be searched, and the problem causing long-time lost network.
Refer to Fig. 6, it it is the structural representation of the another kind of subscriber equipment that the embodiment of the present invention provides, concrete, as shown in Figure 6, the described subscriber equipment of the embodiment of the present invention includes: communication interface 300, memorizer 200 and baseband processor 100, and described baseband processor 100 is connected with described communication interface 300 and described memorizer 200 respectively.Described memorizer 200 can be high-speed RAM memorizer, it is also possible to be non-labile memorizer (non-volatilememory), for instance at least one disk memory.Data cube computation can be carried out by bus, it is also possible to data cube computation by other means between described communication interface 300, memorizer 200 and baseband processor 100.The present embodiment connects with bus and illustrates.This communication interface 300 can include antenna.The described subscriber equipment of the embodiment of the present invention may also include RFFE, RFIC in above-mentioned RF etc. (not shown).Concrete, the described subscriber equipment in the embodiment of the present invention can be corresponding with the subscriber equipment in the corresponding embodiment of above-mentioned Fig. 3 and Fig. 4, specifically refer to the associated description of Fig. 3 or Fig. 4 correspondence embodiment.Wherein,
Described memorizer 200 is used for storing drive software；
Described baseband processor 100 reads described drive software from described memorizer 200 and performs under the effect of described drive software:
Determining target frequency from the frequency range of subscriber equipment support, wherein, described frequency range includes at least one frequency, and described target frequency is the frequency that at least one frequency described, energy value is higher than preset energy threshold value；
Carry out cell searching for described target frequency and by described communication interface 300, and the Search Results according to described cell searching detects whether there is the first community under described target frequency；
If existing, then store described target frequency, to initiate resident successively to all communities under described target frequency.
Optionally, described baseband processor 100 reads described drive software from described memorizer 200 and performs the described target frequency of described storage under the effect of described drive software, specifically performs following steps:
Described target frequency is added in the history frequency list of described subscriber equipment；
The mode of described cell searching can be searched for frequency list, then described first community is the community that under described target frequency, energy value is the highest；Described baseband processor 100 is additionally operable to perform following steps:
Described first community is initiated resident；
If the resident first community failure of described subscriber equipment, then carry out specifying frequency to search to the frequency in the history frequency list that with the addition of described target frequency by described communication interface 300, acquire all communities under the frequency in described history frequency list；
Successively each community under the frequency in described history frequency list is initiated resident.
Optionally, described target frequency includes multiple；Described baseband processor 100 reads described drive software from described memorizer 200 and performs described that described first community initiation is resident under the effect of described drive software, specifically performs following steps:
Successively the first community under each target frequency is initiated resident；
When to the first community under multiple described target frequencies all resident failed time, it is determined that described subscriber equipment resident first community failure.
Optionally, described baseband processor 100 from described memorizer 200 read described drive software and perform under the effect of described drive software described carry out the frequency in the history frequency list that with the addition of described target frequency specifying frequency to search before, be additionally operable to perform following steps:
When the resident first community failure of described subscriber equipment, obtain the network formats that described subscriber equipment is supported；
Current network standard is sequentially switched to each network formats that described subscriber equipment is supported, and carries out cell searching by described communication interface 300, acquire the community under this network formats；
Successively each community under this network formats acquired is initiated resident；
If all resident failure in all communities under the network formats support the described subscriber equipment acquired, then perform described step frequency in the history frequency list that with the addition of described target frequency being carried out and specifying frequency to search.
Optionally, described baseband processor 100 from described memorizer 200 read described drive software and perform under the effect of described drive software described from the frequency range of subscriber equipment support, determine target frequency before, be additionally operable to execution following steps:
When the connected state described subscriber equipment being detected is in out service area, undertaken specifying frequency to search by the frequency in the history frequency list to described subscriber equipment of the described communication interface 300；
If described subscriber equipment persistent district is failed after described appointment frequency is searched, then from the frequency range of subscriber equipment support, determine the step of target frequency described in performing.
In embodiments of the present invention, by determining that from the frequency range including multiple frequency of subscriber equipment support energy value is higher than the target frequency of preset energy threshold value, and described target frequency is carried out cell searching, detect and whether there is community under this target frequency, when there is community, this target frequency is stored, to realize the search of all communities under this target frequency, successively all communities under target frequency are initiated resident, thus avoid the Qiang community that there is a certain non-history frequency in the environment be unsatisfactory for resident condition as be set to forbid the situations such as access cause cannot be resident, but exist can be resident Ci Qiang community time, this Ci Qiang community cannot be searched, and the problem causing long-time lost network.
In the above-described embodiments, the description of each embodiment is all emphasized particularly on different fields, certain embodiment there is no the part described in detail, it is possible to referring to the associated description of other embodiments.
In several embodiments provided by the present invention, it should be understood that disclosed apparatus and method, it is possible to realize by another way.Such as, device embodiment described above is merely schematic, such as, the division of described unit, being only a kind of logic function to divide, actual can have other dividing mode when realizing, for instance multiple unit or assembly can in conjunction with or be desirably integrated into another system, or some features can ignore, or do not perform.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be through INDIRECT COUPLING or the communication connection of some interfaces, device or unit, it is possible to be electrical, machinery or other form.
Described this as the unit that separating component illustrates can be or may not be physically separate, and the parts shown as unit can be or may not be physical location, namely may be located at a place, or can also be distributed on multiple NE.Some or all of unit therein can be selected according to the actual needs to realize the purpose of the present embodiment scheme.
It addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it is also possible to be that unit is individually physically present, it is also possible to two or more unit are integrated in a unit.Above-mentioned integrated unit both can adopt the form of hardware to realize, it would however also be possible to employ hardware adds the form of SFU software functional unit and realizes.
The above-mentioned integrated unit realized with the form of SFU software functional unit, it is possible to be stored in a computer read/write memory medium.Above-mentioned SFU software functional unit is stored in a storage medium, including some instructions with so that a computer equipment (can be personal computer, server, or the network equipment etc.) or processor (processor) perform the part steps of method described in each embodiment of the present invention.And aforesaid storage medium includes: USB flash disk, portable hard drive, read only memory (Read-OnlyMemory, ROM), the various media that can store program code such as random access memory (RandomAccessMemory, RAM), magnetic disc or CD.
Those skilled in the art are it can be understood that arrive, for convenience and simplicity of description, only it is illustrated with the division of above-mentioned each functional module, in practical application, as desired above-mentioned functions distribution can be completed by different functional modules, it is divided into different functional modules, to complete all or part of function described above by the internal structure of device.The specific works process of the device of foregoing description, it is possible to reference to the corresponding process in preceding method embodiment, do not repeat them here.
Last it is noted that various embodiments above is only in order to illustrate technical scheme, it is not intended to limit；Although the present invention being described in detail with reference to foregoing embodiments, it will be understood by those within the art that: the technical scheme described in foregoing embodiments still can be modified by it, or wherein some or all of technical characteristic is carried out equivalent replacement；And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (15)
1. a small region search method, it is characterised in that including:
Determining target frequency from the frequency range of subscriber equipment support, wherein, described frequency range includes at least one frequency, and described target frequency is the frequency that at least one frequency described, energy value is higher than preset energy threshold value；
Carry out cell searching for described target frequency, and the Search Results according to described cell searching detects whether there is the first community under described target frequency；
If existing, then store described target frequency, to initiate resident successively to all communities under described target frequency.
2. method according to claim 1, it is characterised in that the described target frequency of described storage, including:
Described target frequency is added in the history frequency list of described subscriber equipment；
The mode of described cell searching is that frequency list is searched, then described first community is the community that under described target frequency, energy value is the highest；Described method also includes:
Described first community is initiated resident；
If the resident first community failure of described subscriber equipment, then carry out the frequency in the history frequency list that with the addition of described target frequency specifying frequency to search, acquire all communities under the frequency in described history frequency list；
Successively each community under the frequency in described history frequency list is initiated resident.
3. method according to claim 2, it is characterised in that described target frequency includes multiple；Described that described first community initiation is resident, including:
Successively the first community under each target frequency is initiated resident；
When to the first community under multiple described target frequencies all resident failed time, it is determined that described subscriber equipment resident first community failure.
4. method according to claim 2, it is characterised in that described carry out the frequency in the history frequency list that with the addition of described target frequency specifying frequency to search before, described method also includes:
When the resident first community failure of described subscriber equipment, obtain the network formats that described subscriber equipment is supported；
Each network formats that current network standard is sequentially switched to described subscriber equipment support carries out cell searching, acquires the community under this network formats；
Successively each community under this network formats acquired is initiated resident；
If all resident failure in all communities under the network formats support the described subscriber equipment acquired, then perform described step frequency in the history frequency list that with the addition of described target frequency being carried out and specifying frequency to search.
5. the method according to any one of claim 1-4, it is characterised in that described from the frequency range of subscriber equipment support, determine target frequency before, described method also includes:
When the connected state described subscriber equipment being detected is in out service area, carry out the frequency in the history frequency list of described subscriber equipment specifying frequency to search；
If described subscriber equipment persistent district is failed after described appointment frequency is searched, then from the frequency range of subscriber equipment support, determine the step of target frequency described in performing.
6. a cell search apparatus, it is characterised in that including:
Frequency determines unit, and for determining target frequency from the frequency range of subscriber equipment support, wherein, described frequency range includes at least one frequency, and described target frequency is the frequency that at least one frequency described, energy value is higher than preset energy threshold value；
Search unit, for carrying out cell searching for described target frequency, and the Search Results according to described cell searching detects whether there is the first community under described target frequency；
Memory element, for when the testing result of described search unit is for existing described first community, storing described target frequency, to initiate resident successively to all communities under described target frequency.
7. device according to claim 6, it is characterised in that described memory element specifically for:
Described target frequency is added in the history frequency list of described subscriber equipment；
The mode of described cell searching is that frequency list is searched, then described first community is the community that under described target frequency, energy value is the highest；Described device also includes:
Resident element, for initiating resident to described first community；
Described search unit, is additionally operable to when the resident first community failure of described subscriber equipment, carries out the frequency in the history frequency list that with the addition of described target frequency specifying frequency to search, acquires all communities under the frequency in described history frequency list；
Described resident element, is additionally operable to initiate resident to each community under the frequency in described history frequency list successively.
8. device according to claim 7, it is characterised in that described target frequency includes multiple；Resident concrete mode is initiated in described first community by described resident element:
Successively the first community under each target frequency is initiated resident；
When to the first community under multiple described target frequencies all resident failed time, it is determined that described subscriber equipment resident first community failure.
9. device according to claim 7, it is characterised in that described device also includes:
Standard acquiring unit, for when the resident first community failure of described subscriber equipment, obtaining the network formats that described subscriber equipment is supported；
Described search unit, each network formats being additionally operable to be sequentially switched to current network standard described subscriber equipment support carries out cell searching, acquires the community under this network formats；
Described resident element, it is additionally operable to initiate resident to each community under this network formats acquired successively, and all communities under the network formats that the described subscriber equipment that acquires is supported all resident failed time, notify that the frequency in the history frequency list that with the addition of described target frequency is carried out specifying frequency to search by described search unit.
10. the device according to any one of claim 6-9, it is characterised in that
Described search unit, it is additionally operable to when the connected state described subscriber equipment being detected is in out service area, carry out the frequency in the history frequency list of described subscriber equipment specifying frequency to search, and after described appointment frequency is searched during described subscriber equipment persistent district failure, notify that described frequency determines that unit determines target frequency from the frequency range of subscriber equipment support.
11. a subscriber equipment, it is characterised in that including: communication interface, memorizer and baseband processor, described baseband processor is connected with described communication interface and described memorizer respectively；Wherein,
Described memorizer is used for storing drive software；
Described baseband processor reads described drive software from described memorizer and performs under the effect of described drive software:
Determining target frequency from the frequency range of subscriber equipment support, wherein, described frequency range includes at least one frequency, and described target frequency is the frequency that at least one frequency described, energy value is higher than preset energy threshold value；
Carry out cell searching for described target frequency and by described communication interface, and the Search Results according to described cell searching detects whether there is the first community under described target frequency；
If existing, then store described target frequency, to initiate resident successively to all communities under described target frequency.
12. subscriber equipment according to claim 11, it is characterised in that described baseband processor reads described drive software from described memorizer and performs the described target frequency of described storage under the effect of described drive software, specifically performs following steps:
Described target frequency is added in the history frequency list of described subscriber equipment；
The mode of described cell searching is that frequency list is searched, then described first community is the community that under described target frequency, energy value is the highest；Described baseband processor is additionally operable to perform following steps:
Described first community is initiated resident；
If the resident first community failure of described subscriber equipment, then carry out specifying frequency to search to the frequency in the history frequency list that with the addition of described target frequency by described communication interface, acquire all communities under the frequency in described history frequency list；
Successively each community under the frequency in described history frequency list is initiated resident.
13. subscriber equipment according to claim 12, it is characterised in that described target frequency includes multiple；Described baseband processor reads described drive software from described memorizer and performs described that described first community initiation is resident under the effect of described drive software, specifically performs following steps:
Successively the first community under each target frequency is initiated resident；
When to the first community under multiple described target frequencies all resident failed time, it is determined that described subscriber equipment resident first community failure.
14. subscriber equipment according to claim 12, it is characterized in that, described baseband processor from described memorizer read described drive software and perform under the effect of described drive software described carry out the frequency in the history frequency list that with the addition of described target frequency specifying frequency to search before, be additionally operable to perform following steps:
When the resident first community failure of described subscriber equipment, obtain the network formats that described subscriber equipment is supported；
Current network standard is sequentially switched to each network formats that described subscriber equipment is supported, and carries out cell searching by described communication interface, acquire the community under this network formats；
Successively each community under this network formats acquired is initiated resident；
If all resident failure in all communities under the network formats support the described subscriber equipment acquired, then perform described step frequency in the history frequency list that with the addition of described target frequency being carried out and specifying frequency to search.
15. according to the subscriber equipment described in any one of claim 11-14, it is characterized in that, described baseband processor is additionally operable to perform following steps before determining target frequency from the described memorizer described drive software of reading and under the effect of described drive software from the frequency range of subscriber equipment support described in execution:
When the connected state described subscriber equipment being detected is in out service area, undertaken specifying frequency to search by the frequency in the history frequency list to described subscriber equipment of the described communication interface；
If described subscriber equipment persistent district is failed after described appointment frequency is searched, then from the frequency range of subscriber equipment support, determine the step of target frequency described in performing.
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106358251A (en) * | 2016-08-27 | 2017-01-25 | 华为技术有限公司 | Network switch method and terminal equipment |
| CN106792997A (en) * | 2016-12-30 | 2017-05-31 | 宇龙计算机通信科技(深圳)有限公司 | A kind of cell selecting method and terminal device |
| CN107529198A (en) * | 2017-09-13 | 2017-12-29 | 努比亚技术有限公司 | The method and mobile terminal of call drop are prevented in communication process |
| CN108668339A (en) * | 2018-05-15 | 2018-10-16 | 维沃移动通信有限公司 | A kind of cell selecting method and terminal device |
| CN109089297A (en) * | 2018-10-30 | 2018-12-25 | 维沃移动通信有限公司 | A kind of network search method and terminal |
| CN109769287A (en) * | 2019-02-27 | 2019-05-17 | 维沃移动通信有限公司 | Cell selecting method and terminal |
| CN109788151A (en) * | 2019-03-12 | 2019-05-21 | 维沃移动通信有限公司 | Method and apparatus for restoring VoLTE call |
| WO2019196912A1 (en) * | 2018-04-12 | 2019-10-17 | 华为技术有限公司 | Cell search method and communication apparatus |
| CN111787598A (en) * | 2020-06-24 | 2020-10-16 | Oppo广东移动通信有限公司 | Network searching method, device, multi-mode terminal and storage medium |
| CN111816984A (en) * | 2020-06-10 | 2020-10-23 | 昆山睿翔讯通通信技术有限公司 | Multi-frequency terminal modular antenna system |
| CN112055398A (en) * | 2020-09-11 | 2020-12-08 | 江西财经大学 | Mobile terminal cell residence method based on historical frequency points |
| CN113225789A (en) * | 2021-04-23 | 2021-08-06 | 芯翼信息科技(南京)有限公司 | Cell search method, system, device and storage medium |
| CN113709073A (en) * | 2021-09-30 | 2021-11-26 | 陕西长岭电子科技有限责任公司 | Demodulation method of quadrature phase shift keying modulation signal |
| CN114071655A (en) * | 2020-07-31 | 2022-02-18 | 荣耀终端有限公司 | Network searching method and related device |
| CN115052327A (en) * | 2022-03-16 | 2022-09-13 | 北京小米移动软件有限公司 | Network control method, device and storage medium |
| CN116528330A (en) * | 2023-07-05 | 2023-08-01 | Tcl通讯科技（成都）有限公司 | Equipment network access method and device, electronic equipment and computer readable storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101980571A (en) * | 2010-10-13 | 2011-02-23 | 中兴通讯股份有限公司 | Method for accelerating cell search and mobile communication terminal |
| CN102421120A (en) * | 2011-05-27 | 2012-04-18 | 展讯通信（上海）有限公司 | Multi-card multi-standby communication terminal and neighbor list maintaining method and device thereof |
| CN102905346A (en) * | 2011-07-27 | 2013-01-30 | 联芯科技有限公司 | Method and system for implementing quick cell selection in wireless communication system |
| US20130121218A1 (en) * | 2011-11-15 | 2013-05-16 | Mediatek Inc. | Methods for performing an efficient network search and communications apparatuses utilizing the same |
| CN103458462A (en) * | 2012-06-04 | 2013-12-18 | 电信科学技术研究院 | Cell selection method and equipment |
-
2016
- 2016-02-29 CN CN201610111155.1A patent/CN105744599A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101980571A (en) * | 2010-10-13 | 2011-02-23 | 中兴通讯股份有限公司 | Method for accelerating cell search and mobile communication terminal |
| CN102421120A (en) * | 2011-05-27 | 2012-04-18 | 展讯通信（上海）有限公司 | Multi-card multi-standby communication terminal and neighbor list maintaining method and device thereof |
| CN102905346A (en) * | 2011-07-27 | 2013-01-30 | 联芯科技有限公司 | Method and system for implementing quick cell selection in wireless communication system |
| US20130121218A1 (en) * | 2011-11-15 | 2013-05-16 | Mediatek Inc. | Methods for performing an efficient network search and communications apparatuses utilizing the same |
| CN103458462A (en) * | 2012-06-04 | 2013-12-18 | 电信科学技术研究院 | Cell selection method and equipment |
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106358251A (en) * | 2016-08-27 | 2017-01-25 | 华为技术有限公司 | Network switch method and terminal equipment |
| CN106358251B (en) * | 2016-08-27 | 2020-02-21 | 华为技术有限公司 | Network switching method and terminal equipment |
| CN106792997A (en) * | 2016-12-30 | 2017-05-31 | 宇龙计算机通信科技(深圳)有限公司 | A kind of cell selecting method and terminal device |
| CN107529198A (en) * | 2017-09-13 | 2017-12-29 | 努比亚技术有限公司 | The method and mobile terminal of call drop are prevented in communication process |
| WO2019196912A1 (en) * | 2018-04-12 | 2019-10-17 | 华为技术有限公司 | Cell search method and communication apparatus |
| US11310729B2 (en) | 2018-04-12 | 2022-04-19 | Huawei Technologies Co., Ltd. | Cell search method and communications apparatus |
| CN108668339A (en) * | 2018-05-15 | 2018-10-16 | 维沃移动通信有限公司 | A kind of cell selecting method and terminal device |
| CN109089297B (en) * | 2018-10-30 | 2021-01-08 | 维沃移动通信有限公司 | Network searching method and terminal |
| CN109089297A (en) * | 2018-10-30 | 2018-12-25 | 维沃移动通信有限公司 | A kind of network search method and terminal |
| CN109769287A (en) * | 2019-02-27 | 2019-05-17 | 维沃移动通信有限公司 | Cell selecting method and terminal |
| CN109788151A (en) * | 2019-03-12 | 2019-05-21 | 维沃移动通信有限公司 | Method and apparatus for restoring VoLTE call |
| CN111816984A (en) * | 2020-06-10 | 2020-10-23 | 昆山睿翔讯通通信技术有限公司 | Multi-frequency terminal modular antenna system |
| CN111787598B (en) * | 2020-06-24 | 2022-11-01 | Oppo广东移动通信有限公司 | Network searching method, device, multi-mode terminal and storage medium |
| CN111787598A (en) * | 2020-06-24 | 2020-10-16 | Oppo广东移动通信有限公司 | Network searching method, device, multi-mode terminal and storage medium |
| CN114071655A (en) * | 2020-07-31 | 2022-02-18 | 荣耀终端有限公司 | Network searching method and related device |
| CN112055398A (en) * | 2020-09-11 | 2020-12-08 | 江西财经大学 | Mobile terminal cell residence method based on historical frequency points |
| CN112055398B (en) * | 2020-09-11 | 2022-07-12 | 江西财经大学 | Mobile terminal cell residence method based on historical frequency points |
| CN113225789A (en) * | 2021-04-23 | 2021-08-06 | 芯翼信息科技(南京)有限公司 | Cell search method, system, device and storage medium |
| CN113709073A (en) * | 2021-09-30 | 2021-11-26 | 陕西长岭电子科技有限责任公司 | Demodulation method of quadrature phase shift keying modulation signal |
| CN113709073B (en) * | 2021-09-30 | 2024-02-06 | 陕西长岭电子科技有限责任公司 | Demodulation method of quadrature phase shift keying modulation signal |
| CN115052327A (en) * | 2022-03-16 | 2022-09-13 | 北京小米移动软件有限公司 | Network control method, device and storage medium |
| CN115052327B (en) * | 2022-03-16 | 2023-10-20 | 北京小米移动软件有限公司 | Network control method, device and storage medium |
| CN116528330A (en) * | 2023-07-05 | 2023-08-01 | Tcl通讯科技（成都）有限公司 | Equipment network access method and device, electronic equipment and computer readable storage medium |
| CN116528330B (en) * | 2023-07-05 | 2023-10-03 | Tcl通讯科技（成都）有限公司 | Equipment network access method and device, electronic equipment and computer readable storage medium |
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