CN110475307A

CN110475307A - A kind of communication means, user equipment and the device with store function

Info

Publication number: CN110475307A
Application number: CN201810451025.1A
Authority: CN
Inventors: 邬月萍; 陈翔; 杨璐; 招溢利
Original assignee: Huizhou TCL Mobile Communication Co Ltd
Current assignee: Huizhou TCL Mobile Communication Co Ltd
Priority date: 2018-05-11
Filing date: 2018-05-11
Publication date: 2019-11-19
Anticipated expiration: 2038-05-11
Also published as: CN110475307B; WO2019214203A1

Abstract

The invention discloses a kind of communication means, user equipment and with the device of store function.The communication means includes: that at least one first best cell is found within the scope of wireless access network notification area, the communication quality of first best cell meets the requirements, and absolute priority highest in the satisfactory cell of all communication qualities in wireless access network notification area；If finding the first best cell, then using the first best cell as reselecting cell, if not finding the first best cell, the second best cell is then found in all available cells, the communication quality of second best cell meets the requirements, and absolute priority highest in all satisfactory cells of communication quality in all available cells；If finding the second best cell, using the second best cell as reselecting cell.By the above-mentioned means, the present invention can be avoided unnecessary signaling overheads and power consumption, economize on resources.

Description

A kind of communication means, user equipment and the device with store function

Technical field

The present invention relates to the communications fields, more particularly to a kind of communication means, user equipment and with the dress of store function It sets.

Background technique

In NR (New Radio, newly eat dishes without rice or wine) network, in order to reduce signaling overheads and power consumption and time delay, need to allow user Equipment is constantly in attachable state, therefore introduces the dormant state (RRC_INACTIVE) of wireless heterogeneous networks.Work as user When equipment is in the dormant state of wireless heterogeneous networks, CN (Core Network, core net)-RAN (Radio is kept Access Network, wireless access network) connection, but disconnect RAN connection.When user equipment is in wireless heterogeneous networks Dormant state when, since user equipment can be always held at moving condition, it is possible to move out the model of current persistent district It encloses, needs to carry out cell at this time and reselect at least one suitable cell as cell is reselected, this reselects cell can Using the persistent district new as the user equipment.

During selecting at least one suitable cell as cell is reselected, if at least one cell of selection Including the cell outside wireless access network notification area range, user equipment needs to be implemented RLAU (RAN-based location Update, the location updating based on RAN) operation, this will lead to higher signaling overheads and power consumption.In addition, can not determine now All cells all support the dormant state of wireless heterogeneous networks, so if at least one cell of selection includes not supporting wirelessly The cell of the dormant state of resources control needs to be first converted into wireless heterogeneous networks when then user equipment is connect with the cell Idle state is reselected with completing cell.State conversion also leads to higher extra power consumption.

Summary of the invention

The invention mainly solves the technical problem of providing a kind of communication means, user equipment and with the dress of store function It sets, signaling overheads and power consumption needed for can reduce user equipment communication economize on resources.

In order to solve the above technical problems, one technical scheme adopted by the invention is that: a kind of communication means is provided, comprising: At least one first best cell, the communication quality of first best cell are found within the scope of wireless access network notification area It meets the requirements, and absolutely excellent in all satisfactory cells of communication quality in the wireless access network notification area First grade highest；If finding first best cell, using first best cell as reselecting cell, if The first best cell is not found within the scope of the wireless access network notification area, then it is best that second is found in all available cells The communication quality of cell, second best cell meets the requirements, and it is all in all available cells described in Absolute priority highest described in the satisfactory cell of communication quality；It, will be described if finding second best cell Second best cell reselects cell described in being used as.

In order to solve the above technical problems, another technical solution used in the present invention is: a kind of user equipment is provided, including Processor, telecommunication circuit and the memory being mutually coupled, the processor couple the telecommunication circuit and the memory, are used for Realize method as described above.

In order to solve the above technical problems, another technical solution used in the present invention is: providing a kind of with store function Device, be stored with program data, described program data can be performed to realize the step in method as described above.

The beneficial effects of the present invention are: being in contrast to the prior art, the present invention wirelessly connecing in user equipment first It is found in the range of networking notification area and closes at least one suitable cell as reselecting cell, it can be with if be successfully found It avoids selecting the cell outside the wireless access network notification area range in user equipment and carrying out RLAU (RAN-based Location update is based on the location updating of RAN (Radio Access Network, wireless access network)) operation；When with When there is no suitable cells as cell is reselected in the range of the notification area of the wireless access network of family equipment, all Select the cell for supporting the dormant state of wireless heterogeneous networks as cell is reselected in optional cell, if be successfully found When can be to avoid the cell for having selected the dormant state for not supporting wireless heterogeneous networks, user equipment needs to be converted into radio resource control The idle state of system and the signal resource spent.During cell reselects, in addition to consider cell signal quality it Outside, it is also contemplated that cell priority.Cell within the scope of wireless access network notification area integrally has highest priority, secondly It is the cell for supporting the dormant state of wireless heterogeneous networks, reduces RLAU and user equipment carries out RRC_IDLE bring letter Expense and power consumption are enabled, to save resource.

Detailed description of the invention

Fig. 1 is the flow diagram of the first embodiment of communication means provided by the invention；

Fig. 2 is the flow diagram of the first embodiment of the method provided by the invention for finding the first best cell；

Fig. 3 be invention provide judge whether the first best cell can be used as the first real of the method for reselecting cell Apply the process examination schematic diagram of example；

Fig. 4 is the flow diagram of the second embodiment of the method provided by the invention for finding the first best cell；

Fig. 5 is the flow diagram of the second embodiment of communication means provided by the invention；

Fig. 6 is that the present invention provides the flow diagram for finding an embodiment of method for the second best cell；

Fig. 7 is provided by the invention to judge whether the second best cell can be used as the first of the method for reselecting cell The process of embodiment tries schematic diagram；

Fig. 8 is the flow diagram of the 3rd embodiment of communication means provided by the invention；

Fig. 9 is the structural schematic diagram of an embodiment of user equipment provided by the invention；

Figure 10 is the structural schematic diagram of an embodiment of the device provided by the invention with store function.

Specific embodiment

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment belongs to the scope of protection of the invention.

Referring to Fig. 1, Fig. 1 is the flow diagram of the first embodiment of communication means provided by the invention.Such as Fig. 1 institute Show, communication means following steps provided by the invention:

S101: finding at least one first best cell within the scope of wireless access network notification area, and described first is best The communication quality of cell meets the requirements, and all communication qualities in the wireless access network notification area meet the requirements Cell in absolute priority highest.

In NR (New Radio, newly eat dishes without rice or wine) network, in order to reduce signaling overheads and power consumption and time delay, need to allow user Equipment is constantly in attachable state, therefore introduces the dormant state of wireless heterogeneous networks.In NR network, in wireless money The user equipment of the dormant state of source control is equipped with a RNA (RAN notification area, wireless access network notice Region) range, when user equipment moves away current RNA range, user equipment needs to be implemented RLAU (RAN-based Location update, the location updating based on RAN) operation, this, which is operated, will may require that user equipment sends and/or receives Some RRC (Radio Resource Control, wireless heterogeneous networks) signaling informations, and this will will lead to higher signaling and open Pin and power consumption and result in waste of resources.Therefore, if user equipment select reselect cell as wireless access network notification area Cell outside the range of domain will need to be implemented RLAU operation.In order to reduce user equipment communication when signaling overheads and power consumption and The unnecessary wasting of resources is avoided, in the present invention, preferentially in the current wireless access network notification area range of user equipment The interior suitable cell of searching, which is used as, reselects cell.

In a specific implement scene, each frequency is assigned to an absolute priority.Different frequency Absolute priority can in advance by 1) by the system information of Cell Broadcast CB, 2) sent by current base station RRCConnectionRelease message, 3) when the choosing of RAT (Radio Access Technology, be wirelessly included in technology) cell It selects or one or more methods when (reselecting) from the methods of inheriting from a upper RAT is sent to user equipment.At it In his implement scene, the priority of each frequency can be sent to user equipment by other methods, such as by setting in user The priority etc. of each frequency is pre-defined in standby.

Wireless access network notification area list of frequency includes within the scope of the wireless access network notification area of the user equipment All frequencies and its absolute priority.The current base station connecting with user equipment leads to wireless access network notification area list of frequency It crosses RRCConnectionRelease and is sent to user equipment.

Specifically, please referring to Fig. 2, Fig. 2 is the first reality of the method provided by the invention for finding the first best cell Apply the flow diagram of example.It is provided by the invention find the first best cell method the following steps are included:

S1011: checking the wireless access network notification area list of frequency, and field frequency list is known by the access Netcom In all frequencies sort and store from high to low according to the grade of absolute priority described in its, to form candidate wireless access network Notification area frequency set.

In a specific implement scene, user equipment inspection receive by current base station send wireless access network Notification area list of frequency obtains all frequencies in the user equipment wireless access network notification area.User equipment root According to the absolute priority of the different frequency received in advance, by these frequencies according to its absolute priority grade from high to low into Row sequence, and these frequencies are stored by the sequence, to form candidate wireless access network notification area frequency set.

In other implement scenes, in order to facilitate the subsequent absolute priority for searching a certain frequency either a certain priority Corresponding frequency can also be that all frequencies in the user equipment wireless access network notification area are corresponding with its absolutely Priority is stored in pairs, or is stored in pairs and according to the grade of its absolute priority according to from high to low or from low to high Orderly storage, to form candidate wireless access network notification area frequency set.

S1012: the candidate wireless access network notification area frequency set is checked, obtaining has the one of highest absolute priority A or multiple frequencies.

In a specific implement scene, have in user equipment inspection candidate's wireless access network notification area frequency set One or more frequencies of highest absolute priority.It should be noted that having plenty of, multiple and different frequencies also can have identical Absolute priority.User equipment finds this or more according to the corresponding absolute priority of the different frequency having been received The grade of absolute priority possessed by a frequency.In other implement scenes, because being in the user equipment wireless access network All frequencies absolute priority corresponding with its in notification area stores in pairs, therefore absolutely excellent with highest finding When the frequency of first grade, the grade of its absolute priority has just been obtained.In other implement scenes, it can also be User equipment is in step S1011, absolutely according to it by all frequencies in the user equipment wireless access network notification area When sorting from high to low to the grade of priority, so that it may record the highest absolute priority in all absolute priorities.

S1013: the absolute priority that the frequency where current area is had and the highest first priority are grading Row compares.

In a specific implement scene, absolute priority possessed by frequency where user equipment checks current area Grade, by the grade and first priority possessed by all frequencies in the user equipment wireless access network notification area The grade of highest absolute priority in grade is compared.It should be noted that user equipment may have multiple current areas (including main plot, secondary cell etc.), user equipment need to obtain first priority possessed by the frequency where all current areas Grade.User equipment can be by the grade of the one or more absolute priority and in the user equipment wireless access network notification area The grade of highest absolute priority in absolute priority possessed by interior all frequencies compares.

S1014: if the absolute priority that the frequency where the current area has is absolute lower than the highest Priority detects all cells for being in the frequency with the highest absolute priority.

In other implement scenes, because all frequencies in the user equipment wireless access network notification area are had The possible corresponding frequency more than one of highest absolute priority in some absolute priorities, then with regard to needing to detect to be in institute There is the cell of the frequency with highest absolute priority.

In other implement scenes, when user equipment has multiple current areas, user equipment can be current small by these The grade of highest absolute priority in absolute priority possessed by frequency where area be in the user equipment wireless access The grade of highest absolute priority in absolute priority possessed by all frequencies in net notification area compares.If Highest in absolute priority possessed by all frequencies in the user equipment wireless access network notification area is absolutely excellent The grade of highest absolute priority in absolute priority possessed by frequency where first grade is higher than current area, then will examine Measure all cells in the frequency.

In other implement scenes, when user equipment has multiple current areas, user equipment can be current small by these The grade of all absolute priorities possessed by frequency where area in the user equipment wireless access network notification area The grade of highest absolute priority in absolute priority possessed by all frequencies compares.If being in the user equipment Highest absolute priority in absolute priority possessed by all frequencies in wireless access network notification area is higher than current small The grade of any one absolute priority in absolute priority possessed by frequency where area, then will will detect that in the frequency All cells of rate.

S1015: selection is in all cells of the frequency with the highest absolute priority in wireless access network The cell of notification area, and measure the communication quality of the cell in wireless access network notification area.

In a specific implement scene, measuring in in the user equipment wireless access network notification area After the communication quality of the cell of the frequency of highest absolute priority, user equipment judges whether these cells are wireless access Netcoms Know the cell in region.Because while the frequency where certain cells is in wireless access network notification area, but due to multiple Cell may be at same frequency, therefore not can determine that cell corresponding to the frequency in wireless access network notification area is equal In wireless access network notification area.

User equipment can receive the wireless access network notification area configuration of current base station transmission, obtain included in it Specify cell list.If in the clear cell list, then it represents that the cell is in wireless access network notification area.Cause This user equipment can be picked out from all cells for being in the frequency with highest absolute priority in wireless access network Cell in notification area.

It include wireless access network/tracking in the system information that cell is broadcasted in another specific implement scene The ID ((identification, mark) in region.By the mark of the cell in the mark and the configuration of wireless access network notification area It is compared, if the two is identical or matches, which is in wireless access network notification area.Therefore user equipment It can be picked out in wireless access network notification area from all cells for being in the frequency with highest absolute priority Cell.

In a specific implement scene, the communication quality for measuring a cell is the RSRP for measuring the cell (Reference Signal Received Power, Reference Signal Received Power) and RSRQ (Reference Signal At least one of Received Quality, Reference Signal Received Quality) in, in other implement scenes, this can also be measured The RSSI (Received Signal Strength Indicator, received signal strength indicator) or RS-SINR of cell At least one of in (Signal to Interference Noise Ratio, Signal to Interference plus Noise Ratio).

S1016: deleting can not be as the time for reselecting cell in the cell in wireless access network notification area Remaining cell in the cell in wireless access network notification area is ranked up by the cell for selecting cell according to R standard, Select the cell of arrangement first in the sequence as first best cell.

In a specific implement scene, if a cell be can not as the candidate cell for reselecting cell, Then the cell can not be as reselecting cell, before by each cell according to the priority orders sequence of regulation, can be with Leave out these cells, to reduce the workload of subsequent sequence.Can not include as the cell for the candidate cell for reselecting cell The cell for being indicated as " remaining for other purposes in advance ", is indicated as " keeping for operation the cell for being indicated as " being forbidden to use " One of cell of quotient's use " or a variety of cells.

User equipment may determine that the cell whether be can not be as the cell for the candidate cell for reselecting cell, at this In implement scene, it can will be unable to as the list of the cell for the candidate cell for reselecting cell be stored in user equipment in advance In, if not storing the cell or the mark of the cell in the list that can not be used as the cell for the candidate cell for reselecting cell Know, then the cell be not can not be as the cell for the candidate cell for reselecting cell.In other implement scenes, it can also incite somebody to action It can not be stored in advance in a user device as the judgment criteria of the cell for the candidate cell for reselecting cell, user equipment root According to these judgment criterias judge the cell whether be can not be as the cell for the candidate cell for reselecting cell.Or it can give Special identifier can not be added as the cell for the candidate cell for reselecting cell by belonging to, and user equipment is according to the first best cell Whether carry the special identifier judge first best cell whether be can not be as the candidate cell for reselecting cell Cell.

In a specific implement scene, user equipment arranges remaining cell according to R standard [TS38.304] Each remaining cell is as ranked up, specifically basis by sequence according to the priority of regulation:

Rs=Qmeas, s+Qhyst

Rn=Qmeas, n+Qoffset

Two equatioies are ranked up, and can be first ranked up according to Rs, in the case where Rs is equal further according to Rn come into Row sequence, or elder generation that can be opposite are ranked up according to Rn, are ranked up in the case where Rn is equal further according to Rs.Row Being located at primary cell after sequence is the first best cell.In other implement scenes, can also be according to Rs or Rn its In one sort.

Wherein, Qmeas, s be cell select again then used in RSRP measured value.Qoffset is in frequency: if Qoffsets, n are effectively, to be then equal to Qoffsets, n, and otherwise it is equal to zero.For frequency interval: if Qoffsets, n It is effectively, to be equal to Qoffsets, n adds Qoffsetfrequency, and otherwise it is equal to Qoffsetfrequency. Qoffsets, n specify the offset between two cells, and Qoffsetfrequency is equal priority E-UTRAN frequency Frequency particular offset.Qhyst is that ranking criteria specifies lagged value.

In other examples, above-mentioned steps can not be carried out according to the sequence in the present embodiment.Such as user equipment It can pick out in all cells in the frequency with highest absolute priority and be notified in wireless access network in advance Cell in regional scope, then measure the communication quality of these cells.The quantity for needing the cell measured can be reduced in this way.Again Or user equipment can be picked out first in all cells in the frequency with highest absolute priority in wireless The cell in regional scope is known by access Netcom, and by these cells according to R standard sorted after, selected and sorted forward one or Its communication quality of multiple cell measurements can be further reduced the number of cells for needing to measure.

S102: if finding first best cell, using first best cell as reselecting cell.

After finding the first best cell, it is also necessary to further judge to determine if to make cell progress To reselect cell.Specifically, referring to Fig. 3, Fig. 3 is provided by the invention to judge whether the first best cell can be used as Reselect the flow diagram of the first embodiment of the method for cell.Of the invention judges whether the first best cell can be made Method to reselect cell includes:

S1021: judge whether the communication quality of first best cell meets the requirements.

In a specific implement scene, user equipment by measure before the cell communication quality and preset threshold into Row comparison is RSRP (Reference Signal Received Power, the reference for measuring the cell in this implement scene Signal reception power) and RSRQ (Reference Signal Received Quality, Reference Signal Received Quality), if The RSRP and RSRQ of the cell are above preset threshold, then the communication quality of the cell meets the requirements.In other implement scenes, Can also be the cell RSRP and RSRQ one of them be higher than preset threshold, then the communication quality of the cell meets the requirements.In In another specific implement scene, also measure the cell RSSI (Received Signal Strength Indicator, Received signal strength indicator) or RS-SINR (Signal to Interference Noise Ratio, Signal to Interference plus Noise Ratio) in At least one of, when RSSI or RS-SINR is higher than preset threshold, then the communication quality of the cell meets the requirements.

S1022: if the communication quality of first best cell meets the requirements, judge that first best cell is No a part for belonging to " tracking zone list for forbidding roaming ", and/or belong to the public land for being not indicated as being equal to registration The public land mobile network of ground mobile network, if first best cell was both not belonging to " forbid the tracing area of roaming A part of list " is also not belonging to be not indicated as being equal to the public land mobile network of the public land mobile network of registration Network, then using first best cell as reselecting cell.

In a specific implement scene, if the first best cell belongs to " tracking zone list for forbidding roaming " A part belongs to PLMN (PublicLand Mobile Network, the public land shifting for being not indicated as being equal to registration Dynamic network) PLMN, then first best cell can not be as reselecting cell.

In other implement scenes, it can also execute whether first best cell of breaking belongs to " taboo in step S1016 A part of the tracking zone list only roamed ", and/or belong to the public land mobile network for being not indicated as being equal to registration Public land mobile network the step of, to be further reduced the workload of sequence.

In other implement scenes, the partial content of step S1021 and step 1022 can exchange sequence, as can be first Judge whether the cell is to belong to a part of " tracking zone list for forbidding roaming ", and/or belong to and be not indicated as being equal In the public land mobile network of the public land mobile network of registration, then judge whether the communication quality of the cell conforms to It asks.

If having found suitable cell in step S1022 as cell is reselected, this method is so far, such as Fruit does not find suitable cell, thens follow the steps S1023.

S1023: if described be in described in one or more frequencies with highest absolute priority remains The communication quality of remaining cell is undesirable, or belongs to one of " tracking zone list for forbidding roaming " Point, and/or belong to the public land mobile network for being not indicated as being equal to the public land mobile network of registration, then described One or more frequencies with highest absolute priority are deleted in candidate wireless access network notification area frequency set, and are held The method that row selects the first best cell above.

It, can be according to when the first best cell is not suitable as reselecting cell in a specific implement scene The sequence to sort in step S1016 successively executes step S1021- step S1022 to each cell.Until exhausted with highest To finding suitable cell in remaining cell in one or more frequencies of priority as until reselecting cell.Such as Fruit has the communication quality of remaining cell in one or more frequencies of highest absolute priority undesirable, i.e., To can not find suitable cell in one or more frequencies with highest absolute priority as the first best cell.User sets It is standby that the wireless access network notice for being currently in the user equipment will be deleted in candidate wireless access network notification area frequency set One or more frequencies with highest absolute priority in region.It will be exhausted in candidate wireless access network notification area frequency set Highest absolute priority is only second to as current highest absolute priority to priority.Step S1012- step is executed again S1016 then executes step S1021- step S1022/ step S1023 to find the first best cell again, until finding Until can be used as the first best cell for reselecting cell.

As can be seen from the above description, the present invention preferentially selects within the scope of the wireless access network notification area in user equipment It selects suitable cell conduct and reselects cell, it, can be to avoid selection wireless access network notification area if can be successfully found Cell outside range, and the RLAU operation executed, it is possible to reduce signaling overheads and power consumption economize on resources.

Referring to Fig. 4, the process that Fig. 4 is the second embodiment of the method provided by the invention for finding the first best cell is shown It is intended to.It is provided by the invention find the first best cell method the following steps are included:

S2011: checking the wireless access network notification area list of frequency, by the line access notification area column of frequencies All frequencies in table sort and store from high to low according to the grade of absolute priority described in its, to form candidate wireless access Field frequency collection is known by Netcom.

S2012: the candidate wireless access network notification area frequency set is checked, obtaining has the one of highest absolute priority A or multiple frequencies.

S2013: the absolute priority that the frequency where current area is had and the highest first priority are grading Row compares.

Step in the first embodiment for the method that step S2011- step S2013 and the present invention find the first best cell S1011- step S1013 is essentially identical, and details are not described herein again.

S2014: if the absolute priority that has of the frequency where the current area be greater than or equal to it is described most High absolute priority measures the communication quality of the current area, if the communication quality of the current area meets the requirements, Using the current area as reselecting cell.

If in absolute priority possessed by all frequencies in the user equipment wireless access network notification area Highest absolute priority grade less than or equal to the grade of absolute priority possessed by frequency where current area, then use The communication quality of family device measuring current area is the RSRP (Reference for measuring current area in this implement scene Signal Received Power, Reference Signal Received Power) and RSRQ (Reference Signal Received At least one of Quality, Reference Signal Received Quality) in, in other implement scenes, current area can also be measured RSSI (Received Signal Strength Indicator, received signal strength indicator) or RS-SINR (Signal At least one of to Interference Noise Ratio, Signal to Interference plus Noise Ratio) in.

If the communication quality of current area meets the requirements, using current area as reselecting cell.In this implementation It is the RSRP (Reference Signal Received Power, Reference Signal Received Power) for measuring current area in scene With RSRQ (Reference Signal Received Quality, Reference Signal Received Quality), if the RSRP of current area It is above preset threshold with RSRQ, then the communication quality of current area meets the requirements.In other implement scenes, it can also be and work as One of them is higher than preset threshold to the RSRP and RSRQ of preceding cell, then the communication quality of current area meets the requirements.At another In specific implement scene, (Received Signal Strength Indicator is received the also RSSI of measurement current area Signal strength instruction) or RS-SINR (Signal to Interference Noise Ratio, Signal to Interference plus Noise Ratio) at least One, when RSSI or RS-SINR is higher than preset threshold, then the communication quality of current area meets the requirements.

In another specific implementation scene, if the communication quality of current area is undesirable, candidate nothing is measured Frequency of the absolute priority lower than the absolute priority of frequency where current area in line access notification area list of frequency.Tool The measuring process and measurement content of body are as described in step S1014- step S1016 and step S102, and details are not described herein again.

It is to select preferentially to find from the cell for being in the frequency with highest absolute priority to close in this implement scene Suitable cell is as cell is reselected, in other implement scenes, because in candidate wireless access network notification area frequency set The absolute priority of all frequencies is below the absolute priority of the frequency where current area, it is thereby possible to select in appointing The cell for one or more frequencies of anticipating measures.

As can be seen from the above description, the present embodiment selects within the scope of the wireless access network notification area in user equipment When less than suitable cell as cell is reselected, pays the utmost attention to continue to communicate using current area, avoid again Expand range of choice and caused by signaling overheads and power consumption be preferentially in user when current area is not suitable for continuing communication Select suitable cell as cell is reselected within the scope of the wireless access network notification area of equipment, it can be wireless to avoid selection The cell outside regional scope is known by access Netcom, and the RLAU executed is operated, it is possible to reduce signaling overheads and power consumption economize on resources.

Referring to Fig. 5, Fig. 5 is the flow diagram of the second embodiment of communication means provided by the invention.Such as Fig. 5 institute Show, communication means following steps provided by the invention:

S301: finding at least one first best cell within the scope of wireless access network notification area, and described first is best The communication quality of cell meets the requirements, and all communication qualities in the wireless access network notification area meet the requirements Cell in absolute priority highest.

Step S301 and the step S101 in the first embodiment of communication means provided by the invention are essentially identical, herein not It repeats again.

S302: if finding first best cell, using first best cell as cell is reselected, such as Fruit does not find the first best cell, then the second best cell, the institute of second best cell are found in all available cells It states communication quality to meet the requirements, and institute in all satisfactory cells of the communication quality in all available cells State absolute priority highest.

When all cells within the scope of the wireless access network notification area of user equipment are that communication quality is not complyed with and wanted The cell asked either can not be as the candidate cell for reselecting cell, as in the wireless access network notification area of user equipment Suitable cell conduct cannot be found within the scope of domain reselects cell.Furthermore the communication quality of current area, which is not met, yet wants It asks, cannot function as continuing to use.Therefore, user equipment needs all usable frequencies outside wireless access network notification area range Suitable cell conduct is found in corresponding cell reselects cell.

Fig. 6 is please referred to, Fig. 6 is that the process of an embodiment of the method that the present invention provides the second best cell of searching is shown Be intended to, it is provided by the invention find the second best cell method the following steps are included:

S3021: checking all usable frequencies, by all usable frequencies according to the grade of absolute priority described in its by High to low sequence simultaneously stores, to form Candidate Frequency collection.

In a specific implement scene, user equipment checks all usable frequencies, by these usable frequencies according to The absolute priority of the different frequency obtained in advance arranges these frequencies according to the grade of its absolute priority from high to low Sequence, and these frequencies are stored by the sequence, to form Candidate Frequency collection.In other implement scenes, subsequent lookup for convenience The corresponding frequency of the either a certain priority of the absolute priority of a certain frequency can also be all usable frequencies and its correspondence Absolute priority store in pairs, or in pairs storage and according to the grade of its absolute priority according to from high to low or by low Supreme orderly storage, to form Candidate Frequency collection.

In another specific implement scene, due to the frequency pair in candidate wireless access network notification area frequency set Suitable cell conduct is not found in the cell answered and reselects cell, therefore can directly be excluded these frequencies, to subtract The workload of few user equipment.

S3022: checking the Candidate Frequency collection, obtains the frequency with highest absolute priority.

In a specific implement scene, user equipment checks that Candidate Frequency concentrates one with highest absolute priority A or multiple frequencies.It should be noted that multiple and different frequencies also can have identical absolute priority.User equipment root According to the corresponding absolute priority of the different frequency having been received, first priority possessed by the one or more frequency is found The grade of grade.In other implement scenes, because all usable frequencies absolute priority corresponding with its stores in pairs, because This has just obtained the grade of its absolute priority when finding the frequency with highest absolute priority.In In other implement scenes, user equipment can also be in step S3021, by all usable frequencies according to its absolute priority When grade sorts from high to low, so that it may record the highest absolute priority in all absolute priorities.

S3023: deleting in all cells in the frequency with the highest absolute priority can not described in belonging to Cell as the candidate cell for reselecting cell；And/or in the institute in the frequency with the highest absolute priority There is the cell deleted within the scope of the wireless access network notification area in cell.

In a specific implement scene, if a cell be can not as the candidate cell for reselecting cell, As the cell can not be as cell be reselected, can before by each cell according to the priority orders sequence of regulation To leave out these cells, to reduce the workload of subsequent sequence.It can not be as the cell packet for the candidate cell for reselecting cell It includes the cell for being indicated as " remaining for other purposes in advance ", the cell for being indicated as " being forbidden to use ", be indicated as " keeping for fortune One of cell of battalion's quotient's use " or a variety of cells.

In another specific implement scene, since the cell within the scope of candidate wireless access network notification area is equal It is not suitable as reselecting cell, therefore will directly can be within the scope of candidate wireless access network notification area in measurement Cell be not suitable as reselecting cell and directly exclude, to save the workload of user equipment, to economize on resources.

S3024: cell is ranked up according to advanced R standard, select in the sequence cell of arrangement first as Second best cell.

In a specific implement scene, user equipment will be in the remaining cell root of the frequency of highest absolute priority It is ranked up according to advanced R standard, is as ranked up all cells according to the priority of definition, it will specifically root According to:

Rs=Qmeas, s+Qhyst+QINACTIVE

Rn=Qmeas, n+Qoffset+QINACTIVE

Two equatioies are ranked up, and can be first ranked up according to Rs, in the case where Rs is equal further according to Rn come into Row sequence, or elder generation that can be opposite are ranked up according to Rn, are ranked up in the case where Rn is equal further according to Rs.Row Being located at primary cell after sequence is the second best cell.In other implement scenes, can also be according to Rs or Rn its In one sort.Wherein Qmeas, s be cell select again then used in RSRP measured value.Qoffset is in frequency: If Qoffsets, n are effectively, to be then equal to Qoffsets, n, otherwise it is equal to zero.For frequency interval: if Qoffsets, n are effectively, to be equal to Qoffsets, and n adds Qoffsetfrequency, and otherwise it is equal to Qoffsetfrequency.Qoffsets, n specify the offset between two cells, and Qoffsetfrequency is identical The frequency particular offset of priority E-UTRAN frequency.Qhyst is that ranking criteria specifies lagged value.QINACTIVE is additional inclined Shifting amount.

In NR [R2-1803978] and [R2-1802931] and the whether certain wireless heterogeneous networks of undefined cell to It is then used with state so if at least one cell of selection includes not supporting the cell of the dormant state of wireless heterogeneous networks When family equipment is connect with the cell, need to be first converted into the idle state of wireless heterogeneous networks.This will lead to higher additional again Power consumption.

Additional offset, which is intended that, can choose the stand-by shape for supporting wireless heterogeneous networks when user equipment selects cell The cell of state.Whether each cell supports it information of dormant state of wireless heterogeneous networks to be included in system information, will The system information passes through broadcast transmission user equipment.Additional offset amount by cell regulation either be also possible to by user equipment It is defined.In this implement scene, if additional offset amount is as defined in cell, the system information that each cell is broadcasted In include additional offset amount QINACTIVE.In this implement scene, the offset of each cell is not identical.In other implementation fields Jing Zhong, additional offset amount can also be that as defined in user equipment, the offset of cell each in this way is identical, be one public Offset.The public offset is sent to user equipment by RRCConnectionRelease by current base station.It is all in this way Support the additional offset amount of the cell of the dormant state of wireless heterogeneous networks all equal.In NR network, whether cell is needed Support wireless heterogeneous networks dormant state there is no it is manifestly intended that, user equipment has very much when selection reselects cell can It can choose the cell for not supporting the dormant state of wireless heterogeneous networks.Therefore when user equipment is received from different small When the equal or unequal additional offset amount in area, user equipment can improve selection according to the additional offset amount and support radio resource The probability of the cell of the dormant state of control.

In this implement scene, the sequence of the priority of cell considers its additional offset amount QINACTIVE, as considers Whether cell supports the dormant state of wireless heterogeneous networks.Support wireless heterogeneous networks in the second best cell selected in this way The probability of dormant state will be very high.

S303: if finding second best cell, second best cell is reselected as described in small Area.

After finding the second best cell, it is also necessary to further judge to determine if to make cell progress To reselect cell.Specifically, referring to Fig. 7, Fig. 7 is provided by the invention to judge whether the second best cell can be used as Reselect the process examination schematic diagram of the first embodiment of the method for cell.It is of the invention to judge whether the second best cell be with Include: as the method for reselecting cell

S3031: judge whether the communication quality of second best cell meets the requirements.

S3032: if the communication quality of second best cell meets the requirements, judge that second best cell is No a part for belonging to " tracking zone list for forbidding roaming ", and/or belong to the public land for being not indicated as being equal to registration The public land mobile network of ground mobile network, if second best cell was both not belonging to " forbid the tracing area of roaming A part of list " is also not belonging to be not indicated as being equal to the public land mobile network of the public land mobile network of registration Network, then using second best cell as reselecting cell.

In a specific implement scene, if the second best cell belongs to " tracking zone list for forbidding roaming " A part belongs to PLMN (PublicLand Mobile Network, the public land shifting for being not indicated as being equal to registration Dynamic network) PLMN, then second best cell can not be as reselecting cell.

In other implement scenes, the partial content of step S3021 and step S3022 can exchange sequence, as can be with First judge whether the cell is to belong to a part of " tracking zone list for forbidding roaming ", and/or belong to and be not indicated as It is same as the public land mobile network of the public land mobile network of registration, then judges whether the communication quality of the cell conforms to It asks.

Terminated if finding suitable cell in step S3032 as cell, method is reselected, if cannot if It finds, thens follow the steps S3033.

S3033: if described be in described in one or more frequencies with highest absolute priority remains The communication quality of remaining cell is undesirable, or belongs to one of " tracking zone list for forbidding roaming " Point, and/or belong to the public land mobile network for being not indicated as being equal to the public land mobile network of registration, then described Candidate Frequency, which is concentrated, deletes one or more frequencies with highest absolute priority, by the Candidate Frequency after deletion Collection checks the new Candidate Frequency collection as new Candidate Frequency collection, and obtaining the new Candidate Frequency and concentrating has highest Then one or more frequencies of absolute priority execute the method for the second best cell of previously described selection

It, can be according to when the second best cell is not suitable as reselecting cell in a specific implement scene The sequence to sort in step S3024 successively executes step S3031- step S3032 to each cell.Until exhausted with highest To finding suitable cell in remaining cell in one or more frequencies of priority as until reselecting cell.Such as Fruit has the communication quality of remaining cell in one or more frequencies of highest absolute priority undesirable, i.e., To can not find suitable cell in one or more frequencies with highest absolute priority as the second best cell.User sets It is standby deletion to be concentrated to be currently in one or more frequencies with highest absolute priority in Candidate Frequency.By new candidate Absolute priority is only second to highest absolute priority as current highest absolute priority in frequency set.Step is executed again S3022- step S3023 then executes step S3031- step S3032/ step to find the second best cell again S3033, until finding and can be used as and reselect the second best cell of cell.

As can be seen from the above description, the present invention preferentially selects within the scope of the wireless access network notification area in user equipment Suitable cell is selected as cell is reselected, can be held to avoid the cell outside selection wireless access network notification area range Capable RLAU operation.It finds to be used as less than suitable cell within the scope of the wireless access network notification area of user equipment and select again When selecting cell, the cell of the dormant state of wireless heterogeneous networks is supported in selection in selectable cell, is avoided and is chosen not It supports the cell of the dormant state of wireless heterogeneous networks and state is needed to convert.Signaling overheads and power consumption can be reduced in this way, saved About resource.

Referring to Fig. 8, Fig. 8 is the flow diagram of the 3rd embodiment of communication means provided by the invention.The present invention mentions The communication means of confession the following steps are included:

S401: start.

In a specific implement scene, each frequency is assigned to an absolute priority.Different frequency Absolute priority can in advance by 1) by the system information of Cell Broadcast CB, 2) sent by current base station RRCConnectionRelease message, 3) when the selection of RAT (Radio AccessTechnology, be wirelessly included in technology) cell Or user equipment is sent to from one or more methods from a upper RAT in the methods of succession when (reselecting).At other In implement scene, the priority of each frequency can be sent to user equipment by other methods, such as by user equipment In pre-define the priority etc. of each frequency.

User equipment is in absolute priority, the nothing for receiving and storing such as frequency before communication means starts or when just starting Parameter needed for line access notification area list of frequency and additional offset amount etc. carry out the communication means and list.

S402: checking the wireless access network notification area list of frequency, by the line access notification area column of frequencies All frequencies in table sort and store from high to low according to the grade of absolute priority described in its, to form candidate wireless access Field frequency collection is known by Netcom.

S403: the candidate wireless access network notification area frequency set is checked, obtaining has the one of highest absolute priority A or multiple frequencies.

S404: judge that the frequency where whether the highest absolute priority is higher than current area has is described absolutely excellent First grade.

In a specific implement scene, absolute priority possessed by frequency where user equipment checks current area Grade, by the grade and first priority possessed by all frequencies in the user equipment wireless access network notification area The grade of highest absolute priority in grade compares.It should be noted that user equipment may have multiple current areas (including main plot, secondary cell etc.), user equipment need to obtain first priority possessed by the frequency where all current areas Grade.User equipment can be by the grade of the one or more absolute priority and in the user equipment wireless access network notification area The grade of highest absolute priority in absolute priority possessed by interior all frequencies compares.

In other implement scenes, when user equipment has multiple current areas, user equipment can be current small by these The grade of highest absolute priority in absolute priority possessed by frequency where area be in the user equipment wireless access The grade of highest absolute priority in absolute priority possessed by all frequencies in net notification area compares.If Highest in absolute priority possessed by all frequencies in the user equipment wireless access network notification area is absolutely excellent The grade of highest absolute priority in absolute priority possessed by frequency where first grade is higher than current area, then will survey Measure the communication quality of the frequency.

In other implement scenes, when user equipment has multiple current areas, user equipment can be current small by these The grade of all absolute priorities possessed by frequency where area in the user equipment wireless access network notification area The grade of highest absolute priority in absolute priority possessed by all frequencies compares.If being in the user equipment Highest absolute priority in absolute priority possessed by all frequencies in wireless access network notification area is higher than current small The grade of highest absolute priority in absolute priority possessed by frequency where area, then the communication of the frequency will be measured Quality.

It is held if the absolute priority that the frequency where whether highest absolute priority is higher than current area has Row step S405, conversely, thening follow the steps S406.

S405: all cells for being in the frequency with the highest absolute priority are detected.

If the highest absolute priority, will higher than absolute priority possessed by the frequency where current area Measure all cells for being in the frequency with highest absolute priority.

In other implement scenes, because all frequencies in the user equipment wireless access network notification area are had The possible corresponding frequency more than one of highest absolute priority in some absolute priorities, then just needing to detect when detecting The communication quality of all cells of the source in all frequencies with highest absolute priority.

S406: judge whether the communication quality of current area meets the requirements.

In a specific implement scene, if all frequencies in the user equipment wireless access network notification area The grade of highest absolute priority in absolute priority possessed by rate is had less than or equal to frequency where current area Absolute priority grade, then the communication quality of user equipment measurement current area is that measurement is current in this implement scene The RSRP (Reference Signal Received Power, Reference Signal Received Power) and RSRQ (Reference of cell At least one of Signal Received Quality, Reference Signal Received Quality) in, it, can be in other implement scenes Measure current area RSSI (Received Signal Strength Indicator, received signal strength indicator) or At least one of in RS-SINR (Signal to Interference Noise Ratio, Signal to Interference plus Noise Ratio).

If the communication quality of current area meets the requirements, S407 is thened follow the steps, conversely, thening follow the steps S408.

S407: stopping measures, and continues to use using current area as cell is reselected.

In a specific implement scene, using current area as cell is reselected, since having found suitably Cell continues communication, then being just not necessarily to measure other cells, therefore can stop measurement process.In this implementation field Jing Zhong, be measure current area RSRP (Reference Signal Received Power, Reference Signal Received Power) and RSRQ (Reference Signal Received Quality, Reference Signal Received Quality), if the RSRP of current area and RSRQ is above preset threshold, then the communication quality of current area meets the requirements.In other implement scenes, it can also be current One of them is higher than preset threshold to the RSRP and RSRQ of cell, then the communication quality of current area meets the requirements.In another tool In the implement scene of body, (Received Signal Strength Indicator receives letter to the also RSSI of measurement current area The instruction of number intensity) or RS-SINR (Signal to Interference Noise Ratio, Signal to Interference plus Noise Ratio) at least one , when RSSI or RS-SINR is higher than preset threshold, then the communication quality of current area meets the requirements.

S408: measured place is in the communication matter with the absolute priority lower than all cells of the frequency of current area Amount.

In a specific implementation scene, if the communication quality of current area is undesirable, measure candidate wireless Access Netcom knows that absolute priority is lower than the frequency of the absolute priority of frequency where current area in field frequency list.It can be with As described in step 405, communication quality of the measured place in the frequency with the highest absolute priority.Because all frequencies is exhausted The absolute priority of frequency where being below current area to priority, therefore can also arbitrarily measure any absolute priority The communication quality of frequency.

S409: selection is in all cells of the frequency with the highest absolute priority in wireless access Netcom Know the cell in region, and measures the communication quality of the cell in wireless access network notification area.

In a specific implement scene, the communication quality for measuring a cell is the RSRP for measuring the cell (Reference Signal Received Power, Reference Signal Received Power) and RSRQ (Reference Signal At least one of Received Quality, Reference Signal Received Quality) in, in other implement scenes, this can also be measured The RSSI (Received Signal StrengthIndicator, received signal strength indicator) or RS-SINR of cell At least one of in (Signal to Interference NoiseRatio, Signal to Interference plus Noise Ratio).

S410: deleting can not be as the candidate for reselecting cell in the cell in wireless access network notification area Remaining cell in the cell in wireless access network notification area is ranked up by the cell of cell according to R standard, choosing The cell of arrangement first in the sequence is selected as first best cell.

In a specific implement scene, if a cell be can not as the candidate cell for reselecting cell, Then the cell can not be as reselecting cell, before by each cell according to the priority orders sequence of regulation, can be with Leave out these cells, to reduce the workload of subsequent sequence.Can not include as the cell for the candidate cell for reselecting cell Be indicated as " reserving " cell for other purposes, be indicated as cell that except operation person uses, be indicated as it is " not pre- Stay " one of the cell that is used to operator or a variety of cells.

In a specific implement scene, user equipment arranges remaining cell according to R standard [TS38.304] Sequence, specifically basis:

Rs=Qmeas, s+Qhyst

Rn=Qmeas, n+Qoffset

Two equatioies are ranked up, and can be first ranked up according to Rs, in the case where Rs is equal further according to Rn come into Row sequence, or elder generation that can be opposite are ranked up according to Rn, are ranked up in the case where Rn is equal further according to Rs.Row Being located at primary cell after sequence is the first best cell.In other implement scenes, can also be according to Rs or Rn its In one sort.Wherein, Qmeas, s be cell select again then used in RSRP measured value.Qoffset is for frequency Interior: if Qoffsets, n are effectively, to be then equal to Qoffsets, n, otherwise it is equal to zero.For frequency interval: if Qoffsets, n are effectively, to be equal to Qoffsets, and n adds Qoffsetfrequency, and otherwise it is equal to Qoffsetfrequency.Qoffsets, n specify the offset between two cells, and Qoffsetfrequency is identical The frequency particular offset of priority E-UTRAN frequency.Qhyst is that ranking criteria specifies lagged value.

S411: judging whether the communication quality of the first best cell is higher than threshold value, and judges first best cell Whether belong to a part of " tracking zone list for forbidding roaming ", and/or belongs to and be not indicated as being equal to the public of registration The public land mobile network of land mobile network.

If the communication quality of cell meets the requirements and is not belonging to one that belongs to " tracking zone list for forbidding roaming " Divide and is not belonging to be not indicated as being equal to PLMN (Public LandMobile Network, the public land movement of registration Network) PLMN, then follow the steps S412, using the first best cell as cell is reselected, which terminates.If cell Communication quality is undesirable or the cell belongs to a part of " tracking zone list for forbidding roaming " or belongs to not It is indicated as being equal to the PLMN of the PLMN (Public Land Mobile Network, public land mobile network) of registration, Then follow the steps S413.

S413: frequency where deleting first best cell in the candidate wireless access network notification area frequency set Rate.

In a specific implement scene, user equipment will be deleted in candidate wireless access network notification area frequency set Except the frequency where the first best cell.In another implement scene, user equipment, which can be deleted, to be currently in the user and sets One or more frequencies with highest absolute priority in standby wireless access network notification area.

S414: whether candidate wireless access network notification area frequency set is empty.

After the frequency where deleting the first best cell, judge candidate wireless access network notification area frequency set whether also There is remaining frequency, if so, thening follow the steps S403, selects suitable cell as weight from the corresponding cell of remaining frequency New selection cell, if not thening follow the steps S415.

S415: baseline cell gravity treatment is executed based on absolute priority and advanced R standard.

Step S415 is similar with the step S302- step S303 of communication means provided by the invention, and details are not described herein again.

Referring to Fig. 9, Fig. 9 is the structural schematic diagram of an embodiment of test device in the present invention.As shown in figure 9, user Equipment 10 includes processor 11, telecommunication circuit 12 and storage circuit 13.Processor 11 couples telecommunication circuit 12 and storage circuit 13.

In an implement scene, storage circuit 13 is used to store absolute priority, the wireless access Netcom of such as frequency Know parameter and list needed for field frequency list and additional offset amount etc. carry out the communication means.

Processor 11 controls the realization of telecommunication circuit 12 and selects within the scope of the wireless access network notification area of user equipment 10 Suitable cell, which is used as, reselects cell.If all cells within the scope of wireless access network notification area are unsuitable for making To reselect cell, and the communication quality of current area is undesirable, then processor 11 controls telecommunication circuit 12 all Preferentially select the cell for supporting the dormant state of wireless heterogeneous networks as reselecting cell in the cell used.

Wherein, processor 11 realizes that the detailed process of above-mentioned function sees above method embodiment.

As can be seen from the above description, in the present embodiment, telecommunication circuit is coupled by processor and storage circuit is realized preferentially Select suitable cell as reselecting cell within the scope of wireless access network notification area, it is possible to reduce signaling overheads and function Consumption.Furthermore when selecting the cell outside wireless access network notification area range as cell is reselected, nothing is supported in preferential selection For the cell of the dormant state of line resources control as cell is reselected, the state that can be further reduced converts brought signaling Expense and power consumption, to economize on resources.

Referring to Fig. 10, Figure 10 is the structural schematic diagram of the device in the present invention with store function.With store function Device 20 in be stored at least one program data 21, program data 21 is for executing as shown in any one width of Fig. 1 to Fig. 8 Automatically the method tested.In one embodiment, the device with store function can be storage chip in terminal, hard disk or Person is the tool of other read-write storages such as mobile hard disk or flash disk, CD, can also be server etc..

As can be seen from the above description, the program data stored in the Installation practice with store function in the present embodiment It can be used for selecting suitable cell as cell is reselected, resource can be saved.

It is different from the prior art, passes through in the present invention preferentially within the scope of the wireless access network notification area of user equipment Select suitable cell as cell is reselected in cell, it can be to avoid small outside selection wireless access network notification area range Area and carry out RLAU operation caused by signaling overheads and power consumption, to save resource.In wireless access network notification area model The communication quality that cell in enclosing is not suitable as reselecting cell and current area is undesirable and cannot continue to make Used time preferentially selects the cell for the dormant state for supporting wireless heterogeneous networks as cell is reselected, can be to avoid selection not When supporting the cell of the dormant state of wireless heterogeneous networks, user equipment needs to be converted into the idle state institute of wireless heterogeneous networks Bring signaling overheads and power consumption, to further save resource.

Mode the above is only the implementation of the present invention is not intended to limit the scope of the invention, all to utilize this Equivalent structure or equivalent flow shift made by description of the invention and accompanying drawing content, it is relevant to be applied directly or indirectly in other Technical field is included within the scope of the present invention.

Claims

1. a kind of communication means characterized by comprising

At least one first best cell, the communication of first best cell are found within the scope of wireless access network notification area Satisfactory quality, and in all satisfactory cells of communication quality in the wireless access network notification area absolutely To highest priority；

If finding first best cell, using first best cell as cell is reselected, if described The first best cell is not found within the scope of wireless access network notification area, then it is best small to find second in all available cells The communication quality in area, second best cell meets the requirements, and all described logical in all available cells Believe absolute priority highest described in the cell of satisfactory quality；

If finding second best cell, second best cell is reselected into cell as described in.

2. the method according to claim 1, wherein it is described found within the scope of wireless access network notification area to Few first best cell, comprising:

The wireless access network notification area list of frequency that reception is sent by current base station, and all frequencies of acquisition are corresponding absolutely Priority.

3. according to the method described in claim 2, it is characterized in that, described obtain the corresponding absolute priority of all frequencies, packet It includes:

Receive the system information of Cell Broadcast CB, the corresponding absolute priority of all frequencies that the system information includes, and/ Or；

The wireless heterogeneous networks connection release message that the current base station is sent is received, the wireless heterogeneous networks Connection Release disappears The corresponding absolute priority of all frequencies that breath includes, and/or；

The corresponding absolute priority of all frequencies for inheriting that a wireless access technology includes.

4. according to the method described in claim 3, it is characterized in that, it is described found within the scope of wireless access network notification area to Few first best cell, comprising:

Check the wireless access network notification area list of frequency, it will be all in the line access notification area list of frequency Frequency sorts and stores from high to low according to the grade of absolute priority described in its, to form candidate wireless access network notification area Frequency set；

It checks the candidate wireless access network notification area frequency set, obtains the candidate wireless access network notification area frequency set In one or more frequencies with highest absolute priority, from being in the one or more with highest absolute priority Select at least one suitable cell as first best cell in cell in frequency.

5. according to the method described in claim 4, it is characterized in that, described from being in one with highest absolute priority Select at least one suitable cell as first best cell in cell in a or multiple frequencies, comprising:

The absolute priority that frequency where current area has is compared with the highest absolute priority；

If the absolute priority that the frequency where the current area has is lower than the highest absolute priority, detection Source is in from all with the highest absolute priority in all cells of the frequency with the highest absolute priority Frequency cell in select at least one suitable cell as first best cell.

6. according to the method described in claim 5, it is characterized in that, described from being in one with highest absolute priority Select at least one suitable cell as first best cell in cell in a or multiple frequencies, comprising:

Selection is in all cells of the frequency with the highest absolute priority in wireless access network notification area Cell, and measure the communication quality of the cell in wireless access network notification area；

Deleting can not be as the small of the candidate cell for reselecting cell in the cell in wireless access network notification area Area, and according to the communication quality by remaining cell in the cell in wireless access network notification area according to R standard It is ranked up, selects the cell of arrangement first in the sequence as first best cell；

Wherein, described to include: as the cell for the candidate cell for reselecting cell

It is indicated as the cell of " remaining for other purposes in advance "；And/or

It is indicated as the cell of " being forbidden to use "；And/or

It is indicated as the cell of " keeping for operator's use ".

7. according to the method described in claim 4, it is characterized in that, described from being in one with highest absolute priority Select at least one suitable cell as first best cell in cell in a or multiple frequencies, further includes:

If the absolute priority that the frequency where the current area has is greater than or equal to the highest first priority Grade, measures the communication quality of the current area, will be described current if the communication quality of the current area meets the requirements Cell is used as and reselects cell.

8. the method according to the description of claim 7 is characterized in that described from being in one with highest absolute priority Select at least one suitable cell as first best cell in cell in a or multiple frequencies, further includes:

If the communication quality of the current area is undesirable, method described in perform claim requirement 6 is described to find First best cell.

9. the method according to claim 1, wherein if finding first best cell, by described One best cell is used as and reselects cell, comprising:

Judge whether the communication quality of first best cell meets the requirements；

If the communication quality of first best cell meets the requirements, judges whether first best cell belongs to and " prohibit A part of the tracking zone list only roamed ", and/or belong to the public land mobile network for being not indicated as being equal to registration Public land mobile network；

If first best cell was both not belonging to a part of " tracking zone list of static roaming ", be also not belonging to not by Be designated as being equal to the public land mobile network of the public land mobile network of registration, then using first best cell as Reselect cell.

10. the method stated according to claim 9, which is characterized in that if finding first best cell, by described first Best cell is used as and reselects cell, further includes:

If described be in remaining cell described in one or more frequencies with highest absolute priority The communication quality is undesirable, then deletes in the candidate wireless access network notification area frequency set described with most One or more frequencies of high absolute priority；

Using the candidate wireless access network notification area frequency set after deletion as new candidate wireless access network notification area Frequency set checks the new candidate wireless access network notification area frequency set, obtains the new candidate wireless access Netcom Know that field frequency concentrates one or more frequencies with highest absolute priority, then perform claim requires 5- claim 9 The method.

11. the method according to claim 1, wherein if described do not find the first best cell, in candidate The second best cell is found in set of cells, comprising:

It checks all usable frequencies, all usable frequencies is sorted from high to low according to the grade of absolute priority described in its And store, to form Candidate Frequency collection；

It checks the Candidate Frequency collection, obtains the frequency with highest absolute priority；

Select at least one cell being in all cells of the frequency with the highest absolute priority as it is described extremely Few second best cell.

12. according to the method for claim 11, which is characterized in that the selection is in the highest absolute priority Frequency all cells at least one cell as at least one described second best cell, comprising:

It deletes not being used as described in belonging in all cells in the frequency with the highest absolute priority and select again Select the cell of the candidate cell of cell；And/or

It deletes in all cells in the frequency with the highest absolute priority and is notified in the wireless access network The cell in regional scope；

It is indicated as the cell of " being forbidden to use "；And/or

It is indicated as the cell of " keeping for operator's use ".

13. according to the method for claim 12, which is characterized in that the selection is in the highest absolute priority Frequency all cells at least one cell as at least one described second best cell, further includes:

The cell in the frequency with the highest absolute priority after deletion is arranged according to advanced R standard Sequence selects the cell of arrangement first in the sequence as second best cell.

14. according to the method for claim 13, which is characterized in that described to have the highest absolute being in after deletion The cell of the frequency of priority is ranked up according to advanced R standard, comprising:

Obtain the additional offset amount of the cell of each dormant state for supporting wireless heterogeneous networks.

15. according to the method for claim 14, which is characterized in that the additional offset amount is provided by the cell, described Obtain the additional offset amount of the cell of each dormant state for supporting wireless heterogeneous networks, comprising:

The system information of the Cell Broadcast CB is received, the system information includes the additional offset amount.

16. according to the method for claim 14, which is characterized in that the additional offset amount provides by the current base station, The additional offset amount of the cell for obtaining each dormant state for supporting wireless heterogeneous networks, comprising:

Receive the wireless heterogeneous networks connection release message that current base station is sent, the wireless heterogeneous networks connection release message packet Include the additional offset amount.

17. according to the method for claim 16, which is characterized in that the additional offset amount provides by the current base station, The additional offset amount of the cell for obtaining each dormant state for supporting wireless heterogeneous networks, further includes:

When the institute that the additional offset amount and the wireless heterogeneous networks connection release message that the system information includes include When stating additional offset amount difference, ignore the additional offset amount that the system information includes.

18. the method according to claim 1, wherein if finding second best cell, by described Two best cells are used as and reselect cell, comprising:

Judge whether the communication quality of second best cell meets the requirements,

If the communication quality of second best cell meets the requirements, judges whether second best cell belongs to and " prohibit A part of the tracking zone list only roamed ", and/or belong to the public land mobile network for being not indicated as being equal to registration Public land mobile network, if second best cell was both not belonging to one of the tracking zone list of roaming " forbid " Point, it is also not belonging to be not indicated as being equal to the public land mobile network of the public land mobile network of registration, then it will be described First best cell is used as and reselects cell.

19. 8 method stated according to claim 1, which is characterized in that if finding second best cell, by described Two best cells are used as and reselect cell, comprising:

If described be in remaining cell described in one or more frequencies with highest absolute priority The communication quality is undesirable, or belongs to a part of " tracking zone list for forbidding roaming ", and/or belong to It is not indicated as being equal to the public land mobile network of the public land mobile network of registration, is then concentrated in the Candidate Frequency One or more frequencies with highest absolute priority are deleted, using the Candidate Frequency collection after deletion as new time Selected frequency collection checks the new Candidate Frequency collection, and obtaining the new Candidate Frequency and concentrating has highest absolute priority One or more frequencies, then perform claim requires 12- method of claim 18.

20. -19 described in any item methods according to claim 1, which is characterized in that

The communication quality includes: at least one in the Reference Signal Received Power and Reference Signal Received Quality of the cell It is a；

The communication quality meets the requirements, comprising:

At least one of Reference Signal Received Power and Reference Signal Received Quality of the cell are higher than preset threshold；

The communication quality is undesirable, comprising:

At least one of Reference Signal Received Power and Reference Signal Received Quality of the cell are less than or equal to default threshold Value.

21. a kind of user equipment, which is characterized in that including processor, telecommunication circuit and the memory being mutually coupled, the processing Device couples the telecommunication circuit and the memory for realizing such as described in any item methods of claim 1-19.

22. a kind of device with store function, which is characterized in that be stored with program data, described program data can be held Row is to realize such as the step in any one of claim 1-19 the method.