CN102026310A - Method, system and device for cell reselection by terminal - Google Patents
Method, system and device for cell reselection by terminal Download PDFInfo
- Publication number
- CN102026310A CN102026310A CN2009100938980A CN200910093898A CN102026310A CN 102026310 A CN102026310 A CN 102026310A CN 2009100938980 A CN2009100938980 A CN 2009100938980A CN 200910093898 A CN200910093898 A CN 200910093898A CN 102026310 A CN102026310 A CN 102026310A
- Authority
- CN
- China
- Prior art keywords
- sub
- district
- cell list
- adjacent cell
- gravity treatment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The present invention discloses a method for cell reselection by a terminal, comprising the following steps: network devices determine the neighbour cell of the cell where the terminal resides at present, then carry the information of the cell which supports the set network characteristic in the neighbour cell into the neighbour cell list; and network devices send the neighbour cell list to the terminal for indicating the terminal to preferentially select the cell supporting the set network characteristic in the neighbour cell list to do the cell reselection. The present invention also discloses a system and a device for cell reselection by the terminal. The present invention can effectively increase the probability that the neighbour cell supporting the set network characteristic is reselected when the cell reselection is performed, and make the terminal obtain a better communication performance after the terminal reselects the neighbour cell supporting the set network characteristic.
Description
Technical field
The present invention relates to wireless communication field, relate in particular to a kind of terminal and carry out method of cell reselection, system and equipment.
Background technology
At TD SDMA (TD-SCDMA) system, in initial version, do not support high speed downlink packet to insert (High speed Downlink Packet Access, HSDPA) and high speed uplink packet insert (High speed Uplink Packet Access, HSUPA), but in version after a while, the TD-SCDMA system has introduced HSDPA and HSUPA, has promoted user's peak rate and speech quality greatly.In the version after more leaning on, introduce enhancing cell forward access channel (CELL_FACH) characteristic again and continued to be connected (Continuous Packet Connection with grouping user, CPC) characteristic has reduced user's turn-on time, has improved the capacity of online number of users and network etc.Along with the constantly perfect and optimization of technology, bring the experience that the user becomes better and better in a word.
Along with the continuous evolution of technology, network is also in continuous upgrading.In the networking of reality, certainly exist and support the network coexisted scene of different qualities.For example early stage network is only supported HSDPA, and network is afterwards only supported HSDPA and HSUPA again, but latest network is supported CPC and enhancing CELL_FACH characteristic again, supports the network coexisted scene of different qualities so certainly exist in the networking of reality.The resident adjacent cells of cells of terminal may be supported different characteristics exactly like this.
As shown in Figure 1, suppose that terminal resides in sub-district A, have adjacent sub-district B, C, D around it so, wherein sub-district B only supports HSDPA, and sub-district C and sub-district D support CPC and strengthen the CELL_FACH characteristic.
Stipulate in the agreement at present, have four kinds of states under the terminal connection mode, cell private channel (CELL Dedicated Channel, CELL_DCH) state, CELL_FACH state, cell paging channel (CELLPaging Channel, CELL_PCH) state and UTRAN Acceditation Area paging channel (URA-PCH) state.
Under the CELL_DCH state, frequency or iso-frequency adjacent community tabulation together around terminal obtains by reception measurement control (MEASUREMENT CONTROL) message.MEASUREMENT CONTROL message is that network side sends to certain terminal separately.Under CELL_FACH state and CELL_PCH state, terminal can not receive measures the MEASUREMENT CONTRO message of type for frequently same or alien frequencies, different system, so (System Information Broadcast11/12 SIB11/12) obtains on every side with frequency or iso-frequency adjacent community tabulation can only to pass through receiving system information broadcast 11/12.System message broadcasting is radio network controller (RNC) broadcasting, is that all terminals in this sub-district can receive at all terminals in sub-district.Different cell system message broadcasted contents are different, but the system message in sub-district is broadcasted and generally can not changed.
From top introduction as can be seen, under the CELL_DCH state, RNC can be by the different adjacent cell list of each terminal in certain sub-district of MEASUREMENT CONTROL message arrangement, for example shown in Fig. 1, only allocating cell B is to terminal in frequency or iso-frequency adjacent community tabulation for RNC, and terminal just can only be measured sub-district B so.Under CELL_FACH state and CELL_PCH state, because system message broadcasting is that RNC is broadcast to a terminal that the sub-district is all, so the adjacent cell list in the system message broadcasting just can only be configured to all adjacent sub-districts of this sub-district, for example shown in Fig. 1, in frequency or iso-frequency adjacent community tabulation, need allocating cell B, sub-district C and sub-district D.
Introduce the concrete mode of RNC configuration adjacent cell list below respectively.
The measurement control messages is as shown in the table:
As can be seen from the above table, RNC can dispose different measurement types, for example with frequency, alien frequencies, isosystem measurement etc.For common frequency measurement, RNC has disposed co-frequency neighbor cell list, table specific as follows (for alien frequencies and isosystem measurement, adopting same collocation form, is example with same frequency only):
End side is safeguarded a variable CELL_INFO_LSIT who preserves adjacent cell list, after receiving adjacent cell list, according to the different contents that is provided with CELL_INFO_LSIT is upgraded.When " Remove all intra-frequency cells " cell occurring in the adjacent cell list, terminal is all deleted the co-frequency neighbor cell among the CELL_INFO_LSIT.When " New intra-frequency cells " cell occurring, terminal joins among the CELL_INFO_LSIT successively according to the order that sub-district in this cell occurs.Afterwards, terminal will be measured according to the sub-district of preserving among the CELL_INFO_LSIT.
Adjacent cell configuration form in adjacent cell configuration in the system message broadcasting and the measurement control messages is identical.After receiving this configuration, terminal is according to same principle new variables CELL_INFO_LSIT more.
Under CELL_FACH state and CELL_PCH state, terminal can not stopped carries out cell reselection process.The key step of this process is as follows:
At first, terminal receives the same frequency or the iso-frequency adjacent community tabulation of configuration in the system message broadcasting, adjacent sub-district around measuring according to configuration requirement; Then, according to measurement result, if less than zero or in the regular hour, and there is a better adjacent sub-district on every side in the standard path loss parameter of current persistent district, terminal is carried out the sub-district gravity treatment so.Exist the criterion of a better sub-district as follows around the current persistent district of terminal:
R
s＝Q
means，s+Qhyst
s
R
n＝Q
means，n-Qoffset
s，n
Wherein, Q
Means, sIt is the received signal power that records on the Primary Common Control Physical Channel (P-CCPCH) at current persistent district; Q
Means, nIt is the received signal power that records on the Primary Common Control Physical Channel (P-CCPCH) in adjacent sub-district; Qhyst
sBe the lag parameter of current persistent district, obtain by system message broadcasting; Qoffset
S, nSide-play amount when being the sub-district gravity treatment between two sub-districts is obtained by system message broadcasting.
If in a period of time, the quality R of adjacent sub-district
nThe quality R that is higher than current persistent district
s, so the current persistent district of terminal around have a better sub-district.When carrying out gravity treatment, terminal with all better adjacent sub-districts according to parameters R
nSort from high to low, and the adjacent sub-district after sorting is carried out resident trial one by one according to this order.If resident success, then sub-district gravity treatment success.
When the resident sub-district of terminal, at first just need read the system message broadcasting of this sub-district, so when terminal resides in a sub-district, the adjacent sub-district of preserving among the CELL_INFO_LSIT is the adjacent sub-district that disposes in the system message broadcasting.
In realizing process of the present invention, the inventor finds to exist in the prior art following technical problem:
From the top introduction that terminal is received the adjacent cell list mode as can be seen, terminal is according to the adjacent cell list that receives, and measures the adjacent sub-districts around all, and sorted in adjacent sub-district from high to low according to measured result.When gravity treatment, according to this order the adjacent sub-district after sorting is carried out resident trial one by one, the terminal gravity treatment is lower to the probability of the sub-district with certain specific character like this.
Summary of the invention
The embodiment of the invention provides a kind of terminal to carry out method of cell reselection, system and equipment, and gravity treatment is to the probability of the adjacent sub-district of supporting the setting network characteristic when being used to improve terminal and carrying out the sub-district gravity treatment.
A kind of terminal is carried out method of cell reselection, and this method comprises:
The network equipment is determined the adjacent sub-district of the current persistent district of terminal, will support the information of the sub-district of setting network characteristic to be carried in the adjacent cell list in this neighbour sub-district;
The network equipment sends to terminal with described adjacent cell list, is used for indicating described terminal preferentially to choose this adjacent cell list and supports the sub-district of setting network characteristic to carry out the sub-district gravity treatment.
A kind of terminal is carried out the system of sub-district gravity treatment, and this system comprises:
The network equipment is used for determining the adjacent sub-district of the current persistent district of terminal will supporting the information of the sub-district of setting network characteristic be carried in the adjacent cell list in this neighbour sub-district; Described adjacent cell list is sent to terminal;
Terminal, be used to receive described adjacent cell list after, preferentially choose in this adjacent cell list and to support the sub-district of setting network characteristic to carry out the sub-district gravity treatment.
A kind of network equipment, this network equipment comprises:
The adjacent cell list generation unit is used for determining the adjacent sub-district of the current persistent district of terminal will supporting the information of the sub-district of setting network characteristic be carried in the adjacent cell list in this neighbour sub-district;
The adjacent cell list transmitting element is used for described adjacent cell list is sent to terminal, supports the sub-district of setting network characteristic to carry out the sub-district gravity treatment in this adjacent cell list to indicate described terminal preferentially to choose.
A kind of terminal, this terminal comprises:
The adjacent cell list receiving element is used to receive the adjacent cell list that the network equipment is sent, and carries the information of the sub-district of supporting the setting network characteristic in this adjacent cell list;
Gravity treatment unit, sub-district is used for preferentially choosing described adjacent cell list and supports the sub-district of setting network characteristic to carry out the sub-district gravity treatment.
Among the present invention, the network equipment is determined the adjacent sub-district of the current persistent district of terminal, to support the information of the sub-district of setting network characteristic to be carried in the adjacent cell list in this neighbour sub-district, adjacent cell list is sent to terminal, terminal is preferentially chosen and is supported the sub-district of setting network characteristic to carry out the sub-district gravity treatment in this adjacent cell list, because preferentially choosing, terminal support the sub-district of setting network characteristic to carry out the sub-district gravity treatment, thereby gravity treatment is to the probability of the adjacent sub-district of supporting the setting network characteristic in the time of can improving terminal and carry out the sub-district gravity treatment, so that the terminal gravity treatment obtains better communication performance behind the adjacent sub-district of supporting the setting network characteristic.
Description of drawings
Fig. 1 is a cell structure schematic diagram of the prior art;
The method flow schematic diagram that Fig. 2 provides for the embodiment of the invention;
The system configuration schematic diagram that Fig. 3 provides for the embodiment of the invention;
The network equipment structural representation that Fig. 4 provides for the embodiment of the invention;
The terminal structure schematic diagram that Fig. 5 provides for the embodiment of the invention.
Embodiment
Gravity treatment is to the probability of the adjacent sub-district of supporting the setting network characteristic when carrying out the sub-district gravity treatment in order to improve terminal, the embodiment of the invention provides a kind of terminal to carry out method of cell reselection, in this method, the network equipment will support the information of the sub-district of setting network characteristic to be carried at and send to terminal in the adjacent cell list that terminal is preferentially chosen and supported the sub-district of setting network characteristic to carry out the sub-district gravity treatment in the adjacent cell list.
The network equipment among the present invention can be any network equipment that can communicate with terminal such as radio network controller, and follow-up is that example describes with the radio network controller.
Referring to Fig. 2, the terminal that the embodiment of the invention provides is carried out method of cell reselection, specifically may further comprise the steps:
Step 20: radio network controller is determined the adjacent sub-district of the current persistent district of terminal, will support the information of the sub-district of setting network characteristic to be carried in the adjacent cell list in this neighbour sub-district;
Step 21: radio network controller sends to terminal with adjacent cell list;
Step 22: after terminal receives adjacent cell list, preferentially choose and support the sub-district of setting network characteristic to carry out the sub-district gravity treatment in this adjacent cell list.
In the step 20, radio network controller can be only will support the information configuration of sub-district of setting network characteristic in adjacent cell list in the adjacent sub-district, and not with the information configuration of sub-district of not supporting the setting network characteristic in the adjacent sub-district in adjacent cell list, promptly do not carry the information of other sub-districts the sub-district of removing support setting network characteristic in the adjacent cell list after the configuration.When adopting this mode, terminal is preferentially chosen the sub-district of supporting the setting network characteristic in the adjacent cell list to carry out the mode of sub-district gravity treatment as follows in the step 22:
Steps A 1: terminal is carried out the channel relevant parameter to each sub-district in the adjacent cell list, for example the measurement of channel received signal power;
Steps A 2: determine order that the sub-district gravity treatment is carried out in one or more sub-districts in the adjacent cell list according to measurement result, and the sub-district gravity treatment is carried out in one or more sub-districts according to this order.
Here, at first, terminal is calculated the mass parameter R of each sub-district in the adjacent cell list according to following formula
n:
R
n＝Q
means，n-Qoffset
s，n；
Wherein, Q
Means, nBe the received signal power that on the P-CCPCH of respective cell, records, Qoffset
S, nSide-play amount when being the sub-district gravity treatment between two sub-districts;
Then, if in a period of time, the quality R of adjacent sub-district
nThe quality Rs that is higher than current persistent district should the neighbour sub-district be the current persistent district of terminal better sub-district on every side then.Sorted from high to low according to parameters R n in all better adjacent sub-districts, and the adjacent sub-district after sorting is carried out resident trial one by one according to this order.If resident success, then sub-district gravity treatment success.Wherein, R
s=Q
Means, s+ Qhyst
s, Qmean
S, sIt is the received signal power that on the P-CCPCH of current persistent district, records; Qhyst
sBe the lag parameter of the current persistent district of terminal, obtain by system message broadcasting.
In the step 20, radio network controller can also will support the corresponding relation of the identification information of the identification information of sub-district of setting network characteristic and setting network characteristic to be carried in the adjacent cell list; When adopting this kind mode, terminal is preferentially chosen in the adjacent cell list sub-district of supporting the setting network characteristic to carry out the mode of sub-district gravity treatment as follows in the step 22:
Terminal is searched the identification information corresponding district sign of setting network characteristic from adjacent cell list, and preferentially the cell ID corresponding district that finds is carried out the sub-district gravity treatment.Here, the implementation method of preferentially the cell ID corresponding district that finds being carried out the sub-district gravity treatment can comprise following three kinds:
First kind, specifically may further comprise the steps:
Step B1: terminal is carried out the measurement of channel received signal power to each sub-district in the adjacent cell list;
Step B2: terminal is calculated the mass parameter R of each sub-district in the adjacent cell list according to measurement result
n
Here, calculate the mass parameter R of the cell ID corresponding district that finds according to following formula
n:
R
n＝Q
means，n-K×Qoffset
s，n；
Calculate the mass parameter R of other sub-districts except that the cell ID corresponding district that finds in the adjacent cell list according to following formula
n:
R
n＝Q
means，n-Qoffset
s，n；
Wherein, Q
Means, nBe the received signal power that on the P-CCPCH of respective cell, records, Qoffset
S, nSide-play amount when being the sub-district gravity treatment between two sub-districts, K is greater than 0 and less than 1 decimal;
Step B3: according to each R that calculates
nValue is determined order that the sub-district gravity treatment is carried out in one or more sub-districts in the adjacent cell list, and according to this order the sub-district gravity treatment is carried out in described one or more sub-districts.
Concrete, if in a period of time, the quality Rn of adjacent sub-district is higher than the quality Rs of current persistent district, this neighbour sub-district is the better sub-district around the current persistent district of terminal.Sorted from high to low according to parameters R n in all better adjacent sub-districts, and the adjacent sub-district after sorting is carried out resident trial one by one according to this order.If resident success, then sub-district gravity treatment success.Wherein, R
s=Q
Means, s+ Qhyst
s, Qmean
S, sIt is the received signal power that on the P-CCPCH of current persistent district, records; Qhyst
sBe the lag parameter of the current persistent district of terminal, obtain by system message broadcasting.
Second kind, specifically may further comprise the steps:
Step C1: terminal is only carried out the measurement of channel received signal power to the cell ID corresponding district that finds;
Step C2: determine order that the cell ID corresponding district that finds is carried out the sub-district gravity treatment according to measurement result, and the cell ID corresponding district that finds is carried out the sub-district gravity treatment according to this order.
Here, at first, terminal is calculated the mass parameter R of each sub-district of the cell ID correspondence that finds according to following formula
n:
R
n＝Q
means，n-Qoffset
s，n；
Wherein, Q
Means, nBe the received signal power that on the P-CCPCH of respective cell, records, Qoffset
S, nSide-play amount when being the sub-district gravity treatment between two sub-districts;
Then, if in a period of time, the quality R of adjacent sub-district
nThe quality Rs that is higher than current persistent district, this neighbour sub-district is the better sub-district around the current persistent district of terminal.Sorted from high to low according to parameters R n in all better adjacent sub-districts, and the adjacent sub-district after sorting is carried out resident trial one by one according to this order.If resident success, then sub-district gravity treatment success.Wherein, R
s=Q
Means, s+ Qhyst
s, Qmean
S, sIt is the received signal power that on the P-CCPCH of current persistent district, records; Qhyst
sBe the lag parameter of the current persistent district of terminal, obtain by system message broadcasting.
The third, specifically may further comprise the steps:
Step D1: terminal is carried out the measurement of channel received signal power to each sub-district in the adjacent cell list;
Step D2: terminal is calculated the mass parameter R of each sub-district in the adjacent cell list according to following formula
n:
R
n＝Q
means，n-Qoffset
s，n；
Wherein, Q
Means, nBe the received signal power that on the P-CCPCH of respective cell, records, Qoffset
S, nSide-play amount when being the sub-district gravity treatment between two sub-districts;
Step D3: in the adjacent cell list each divided into two groups for a short time, comprise the cell ID corresponding district that finds in first group, promptly support the adjacent sub-district of setting network characteristic; Comprise the adjacent sub-district of not supporting the setting network characteristic in the adjacent cell list in second group; For each grouping, sorted from high to low according to parameters R n in each the adjacent sub-district in this grouping;
Step D4: at first for the adjacent sub-district in first group according to Rn order from high to low, carry out resident trial one by one, if resident success, then sub-district gravity treatment success.Adjacent sub-district traversal in to first group is finished back sub-district gravity treatment yet during success, again to the adjacent sub-district in second group according to Rn order from high to low, carry out resident trial one by one, if resident success, then the sub-district gravity treatment successfully.
In the step 22, radio network controller can send to terminal with adjacent cell list by measuring the broadcasting of control messages or system message.For example, if terminal is in the DCH state, then radio network controller can send to terminal with adjacent cell list by measuring control messages; If terminal is in CELL_FACH state or CELL_PCH state or idle condition, then radio network controller can send to terminal with adjacent cell list by system message broadcasting.
With specific embodiment the inventive method is described below:
Embodiment one:
Step S01:RNC only disposes the adjacent sub-district with certain specific character in measuring control messages.Concrete configuration mode be in the cell " New intra-frequency cells " at adjacent cell list only configuration have the adjacent sub-district of certain specific character, and cell " Remove all intra-frequency cells " is set;
Step S02: terminal receives to be measured after the control messages, and at first the variable CELL_INFO_LSIT with self maintained empties, and the adjacent sub-district that will have certain specific character then is kept among the variable CELL_INFO_LSIT;
Step S03: terminal is measured according to the adjacent cell list of preserving among the variable CELL_INFO_LSIT, and carries out the sub-district gravity treatment according to existing criterion.Adopt the present embodiment terminal can only gravity treatment to adjacent sub-district with certain specific character.
Embodiment two:
Whether step S11:RNC increases by one when disposing adjacent cell list in system message broadcasting should the neighbour sub-district be the sign with certain specific character sub-district.Concrete increase mode such as designator one hurdle in the following table:
RNC is the gravity treatment factor K of cell configuration with certain specific character simultaneously, and the K value is less than 1.
Step S12: when terminal receives adjacent cell list in the system message broadcasting, be sub-district, then calculate the R of this sub-district with certain specific character if find certain adjacent sub-district
nThe time use the gravity treatment factor K, as follows:
R
s＝Q
means，s+Qhyst
s
R
n＝Q
means，n-K×Qoffset
s，n
The R of this sub-district like this
nWill be in front than the easier ordering in the adjacent area that does not have certain specific character, thus terminal when gravity treatment also just easier gravity treatment to this sub-district.
Referring to Fig. 3, the system that the embodiment of the invention also provides a kind of terminal to carry out the sub-district gravity treatment, this system comprises:
The network equipment 30 is used for determining the adjacent sub-district of the current persistent district of terminal will supporting the information of the sub-district of setting network characteristic be carried in the adjacent cell list in this neighbour sub-district; Described adjacent cell list is sent to terminal;
The described network equipment 30 is used for: only the information with the sub-district of described support setting network characteristic is carried at adjacent cell list;
Accordingly, described terminal 31 is used for: each sub-district of described adjacent cell list is carried out the measurement of channel relevant parameter; Determine order that the sub-district gravity treatment is carried out in one or more sub-districts in the described adjacent cell list according to measurement result, and the sub-district gravity treatment is carried out in described one or more sub-districts according to this order.
The described network equipment 30 is used for: the corresponding relation of the identification information of the identification information of the sub-district of described support setting network characteristic and described setting network characteristic is carried at adjacent cell list;
Accordingly, described terminal 31 is used for: the identification information corresponding district of searching described setting network characteristic from described adjacent cell list identifies, and preferentially the cell ID corresponding district that finds is carried out the sub-district gravity treatment.
Described terminal 31 is used for:
At first, each sub-district in the described adjacent cell list is carried out the measurement of channel received signal power;
Then, calculate the mass parameter R of each sub-district in the described adjacent cell list according to measurement result
n, and, according to the mass parameter R of the described cell ID corresponding district that finds of following formula calculating
n:
R
n=Q
Means, n-K * Qoffset
S, n, described Q
Means, nBe the received signal power that on the Primary Common Control Physical Channel P-CCPCH of described sub-district, records, described Qoffset
S, nSide-play amount when being the sub-district gravity treatment between two sub-districts, described K is greater than 0 and less than 1 decimal;
At last, according to each R that calculates
nValue is determined order that the sub-district gravity treatment is carried out in one or more sub-districts in the described adjacent cell list, and according to this order the sub-district gravity treatment is carried out in described one or more sub-districts.
Described terminal 31 is used for:
Only the described cell ID corresponding district that finds is carried out the measurement of channel received signal power; Determine order that the described cell ID corresponding district that finds is carried out the sub-district gravity treatment according to measurement result, and the described cell ID corresponding district that finds is carried out the sub-district gravity treatment according to this order.
Referring to Fig. 4, the embodiment of the invention also provides a kind of network equipment, can be applied to terminal and carry out in the system of sub-district gravity treatment, and this network equipment comprises:
Adjacent sub-district determining unit 40 is used for determining the adjacent sub-district of the current persistent district of terminal;
Characteristic cell list adding device 41 is used for supporting the information of the sub-district of setting network characteristic to be carried in the adjacent cell list described adjacent sub-district;
Adjacent cell list transmitting element 42 is used for described adjacent cell list is sent to terminal, supports the sub-district of setting network characteristic to carry out the sub-district gravity treatment in this adjacent cell list to indicate described terminal preferentially to choose.
Described characteristic cell list adding device 41 comprises first generation unit and/or second generation unit, wherein:
Described first generation unit only is used for the information of the sub-district of described support setting network characteristic is carried at adjacent cell list;
Described second generation unit is used for the corresponding relation of the identification information of the identification information of the sub-district of described support setting network characteristic and described setting network characteristic is carried at adjacent cell list.
Described second generation unit also is used for:
The gravity treatment factor K of the sub-district of described support setting network characteristic is carried in the described adjacent cell list, utilizes this gravity treatment factor K to calculate the mass parameter of the sub-district of described support setting network characteristic to indicate described terminal.
Described adjacent cell list transmitting element 42 is used for:
By measuring the broadcasting of control messages or system message adjacent cell list is sent to terminal.For example, if described terminal is in the DCH state, then described adjacent cell list is sent to terminal by measuring control messages; If described terminal is in CELL_FACH state or CELL_PCH state or idle condition, then described adjacent cell list is sent to terminal by system message broadcasting.
Referring to Fig. 5, the embodiment of the invention also provides a kind of terminal, can be applied to terminal and carry out in the system of sub-district gravity treatment, and this terminal comprises:
Adjacent cell list receiving element 50 is used to receive the adjacent cell list that the network equipment is sent, and carries the information of the sub-district of supporting the setting network characteristic in this adjacent cell list;
Gravity treatment unit, sub-district 51 is used for preferentially choosing described adjacent cell list and supports the sub-district of setting network characteristic to carry out the sub-district gravity treatment.
Gravity treatment unit, described sub-district 51 comprises the first gravity treatment unit and/or the second gravity treatment unit, wherein:
The first gravity treatment unit is used for each sub-district in the described adjacent cell list being carried out the measurement of channel relevant parameter when described adjacent cell list does not carry the information of other sub-districts except that the sub-district of described support setting network characteristic; Determine order that the sub-district gravity treatment is carried out in one or more sub-districts in the described adjacent cell list according to measurement result, and the sub-district gravity treatment is carried out in described one or more sub-districts according to this order;
The second gravity treatment unit, be used for when described adjacent cell list carries the corresponding relation of identification information of the identification information of sub-district of described support setting network characteristic and described setting network characteristic, from described adjacent cell list, search the identification information corresponding district sign of described setting network characteristic, preferentially the cell ID corresponding district that finds is carried out the sub-district gravity treatment.
The described second gravity treatment unit is used for:
At first, each sub-district in the described adjacent cell list is carried out the measurement of channel received signal power;
Then, calculate the mass parameter R of each sub-district in the described adjacent cell list according to measurement result
n, and, according to the mass parameter R of the described cell ID corresponding district that finds of following formula calculating
n:
R
n=Q
Means, n-K * Qoffset
S, n, described Q
Means, nBe the received signal power that on the Primary Common Control Physical Channel P-CCPCH of described sub-district, records, described Qoffset
S, nSide-play amount when being the sub-district gravity treatment between two sub-districts, described K is greater than 0 and less than 1 decimal;
At last, according to each R that calculates
nValue is determined order that the sub-district gravity treatment is carried out in one or more sub-districts in the described adjacent cell list, and according to this order the sub-district gravity treatment is carried out in described one or more sub-districts.
The described second gravity treatment unit is used for:
Only the described cell ID corresponding district that finds is carried out the measurement of channel received signal power; Determine order that the described cell ID corresponding district that finds is carried out the sub-district gravity treatment according to measurement result, and the described cell ID corresponding district that finds is carried out the sub-district gravity treatment according to this order.
Described adjacent cell list receiving element 50 is used for:
From measuring control messages or system message broadcast reception adjacent cell list.For example, if described terminal is in the DCH state, then receive described adjacent cell list from measuring control messages; If described terminal is in CELL_FACH state or CELL_PCH state or idle condition, then from the described adjacent cell list of system message broadcast reception.
Among the present invention, the setting network characteristic comprises: strengthen CELL_FACH characteristic, HSDPA characteristic, HSUPA characteristic, CPC characteristic, two layers of one or combination in any that strengthens in the L2+ characteristic.
To sum up, beneficial effect of the present invention comprises:
In the scheme that the embodiment of the invention provides, the network equipment is determined the adjacent sub-district of the current persistent district of terminal, to support the information of the sub-district of setting network characteristic to be carried in the adjacent cell list in this neighbour sub-district, adjacent cell list is sent to terminal, terminal is preferentially chosen and is supported the sub-district of setting network characteristic to carry out the sub-district gravity treatment in this adjacent cell list, because preferentially choosing, terminal support the sub-district of setting network characteristic to carry out the sub-district gravity treatment, thereby gravity treatment is to the probability of the adjacent sub-district of supporting the setting network characteristic in the time of can improving terminal and carry out the sub-district gravity treatment, so that the terminal gravity treatment obtains better communication performance behind the adjacent sub-district of supporting the setting network characteristic.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (17)
1. a terminal is carried out method of cell reselection, it is characterized in that, this method comprises:
The network equipment is determined the adjacent sub-district of the current persistent district of terminal, will support the information of the sub-district of setting network characteristic to be carried in the adjacent cell list in this neighbour sub-district;
The network equipment sends to terminal with described adjacent cell list, is used for indicating described terminal preferentially to choose this adjacent cell list and supports the sub-district of setting network characteristic to carry out the sub-district gravity treatment.
2. the method for claim 1 is characterized in that, does not carry the information of other sub-districts except that the sub-district of described support setting network characteristic in the described adjacent cell list; Described terminal is preferentially chosen in this adjacent cell list the sub-district of supporting the setting network characteristic and is carried out the sub-district gravity treatment and comprise:
Described terminal is carried out the measurement of channel relevant parameter to each sub-district in the described adjacent cell list; Determine order that the sub-district gravity treatment is carried out in one or more sub-districts in the described adjacent cell list according to measurement result, and the sub-district gravity treatment is carried out in described one or more sub-districts according to this order.
3. the method for claim 1 is characterized in that, the described information of supporting the sub-district of setting network characteristic in should the neighbour sub-district is carried in the adjacent cell list and comprises:
The described network equipment is carried at the corresponding relation of the identification information of the identification information of the sub-district of described support setting network characteristic and described setting network characteristic in the adjacent cell list;
Described terminal is preferentially chosen in this adjacent cell list the sub-district of supporting the setting network characteristic and is carried out the sub-district gravity treatment and comprise:
Described terminal is searched the identification information corresponding district sign of described setting network characteristic from described adjacent cell list, preferentially the cell ID corresponding district that finds is carried out the sub-district gravity treatment.
4. method as claimed in claim 3 is characterized in that, describedly preferentially the cell ID corresponding district that finds is carried out the sub-district gravity treatment and comprises:
Described terminal is carried out the measurement of channel received signal power to each sub-district in the described adjacent cell list;
Described terminal is calculated the mass parameter R of each sub-district in the described adjacent cell list according to measurement result
n, and, according to the mass parameter R of the described cell ID corresponding district that finds of following formula calculating
n:
R
n=Q
Means, n-K * Qoffset
S, n, described Q
Means, nBe the received signal power that on the Primary Common Control Physical Channel P-CCPCH of described sub-district, records, described Qoffset
S, nSide-play amount when being the sub-district gravity treatment between two sub-districts, described K is greater than 0 and less than 1 decimal;
Described terminal is according to each R that calculates
nValue is determined order that the sub-district gravity treatment is carried out in one or more sub-districts in the described adjacent cell list, and according to this order the sub-district gravity treatment is carried out in described one or more sub-districts.
5. method as claimed in claim 3 is characterized in that, describedly preferentially the cell ID corresponding district that finds is carried out the sub-district gravity treatment and comprises:
Described terminal is only carried out the measurement of channel received signal power to the described cell ID corresponding district that finds; Determine order that the described cell ID corresponding district that finds is carried out the sub-district gravity treatment according to measurement result, and the described cell ID corresponding district that finds is carried out the sub-district gravity treatment according to this order.
6. as arbitrary described method among the claim 1-5, it is characterized in that described setting network characteristic comprises:
Strengthen cell forward access channel CELL FACH characteristic, high-speed downlink packet access HSDPA characteristic, high speed uplink packet access HSUPA characteristic, the lasting CPC of connection of grouping user characteristic, two layers of one or combination in any that strengthens in the L2+ characteristic.
7. as arbitrary described method among the claim 1-5, it is characterized in that the described network equipment sends to terminal by measuring the broadcasting of control messages or system message with described adjacent cell list.
8. the system that terminal is carried out the sub-district gravity treatment is characterized in that, this system comprises:
The network equipment is used for determining the adjacent sub-district of the current persistent district of terminal will supporting the information of the sub-district of setting network characteristic be carried in the adjacent cell list in this neighbour sub-district; Described adjacent cell list is sent to terminal;
Terminal, be used to receive described adjacent cell list after, preferentially choose in this adjacent cell list and to support the sub-district of setting network characteristic to carry out the sub-district gravity treatment.
9. system as claimed in claim 8 is characterized in that, the described network equipment is used for:
Only the information with the sub-district of described support setting network characteristic is carried in the adjacent cell list;
Described terminal is used for:
Each sub-district in the described adjacent cell list is carried out the measurement of channel relevant parameter; Determine order that the sub-district gravity treatment is carried out in one or more sub-districts in the described adjacent cell list according to measurement result, and the sub-district gravity treatment is carried out in described one or more sub-districts according to this order.
10. system as claimed in claim 8 is characterized in that, the described network equipment is used for:
The corresponding relation of the identification information of the identification information of the sub-district of described support setting network characteristic and described setting network characteristic is carried in the adjacent cell list;
Described terminal is used for:
From described adjacent cell list, search the identification information corresponding district sign of described setting network characteristic, preferentially the cell ID corresponding district that finds is carried out the sub-district gravity treatment.
11. system as claimed in claim 10 is characterized in that, described terminal is used for:
Each sub-district in the described adjacent cell list is carried out the measurement of channel received signal power;
Calculate the mass parameter R of each sub-district in the described adjacent cell list according to measurement result
n, and, according to the mass parameter R of the described cell ID corresponding district that finds of following formula calculating
n:
R
n=Q
Means, n-K * Qoffset
S, n, described Q
Means, nBe the received signal power that on the Primary Common Control Physical Channel P-CCPCH of described sub-district, records, described Qoffset
S, nSide-play amount when being the sub-district gravity treatment between two sub-districts, described K is greater than 0 and less than 1 decimal;
According to each R that calculates
nValue is determined order that the sub-district gravity treatment is carried out in one or more sub-districts in the described adjacent cell list, and according to this order the sub-district gravity treatment is carried out in described one or more sub-districts.
12. a network equipment is characterized in that, this network equipment comprises:
Adjacent sub-district determining unit is used for determining the adjacent sub-district of the current persistent district of terminal;
Characteristic cell list adding device is used for supporting the information of the sub-district of setting network characteristic to be carried in the adjacent cell list described adjacent sub-district;
The adjacent cell list transmitting element is used for described adjacent cell list is sent to terminal, supports the sub-district of setting network characteristic to carry out the sub-district gravity treatment in this adjacent cell list to indicate described terminal preferentially to choose.
13. the network equipment as claimed in claim 12 is characterized in that, described characteristic cell list adding device comprises first generation unit and/or second generation unit, wherein:
Described first generation unit only is used for the information of the sub-district of described support setting network characteristic is carried at adjacent cell list;
Described second generation unit is used for the corresponding relation of the identification information of the identification information of the sub-district of described support setting network characteristic and described setting network characteristic is carried at adjacent cell list.
14. the network equipment as claimed in claim 13 is characterized in that, described second generation unit also is used for:
The gravity treatment factor K of the sub-district of described support setting network characteristic is carried in the described adjacent cell list, utilizes this gravity treatment factor K to calculate the mass parameter of the sub-district of described support setting network characteristic to indicate described terminal.
15. a terminal is characterized in that, this terminal comprises:
The adjacent cell list receiving element is used to receive the adjacent cell list that the network equipment is sent, and carries the information of the sub-district of supporting the setting network characteristic in this adjacent cell list;
Gravity treatment unit, sub-district is used for preferentially choosing described adjacent cell list and supports the sub-district of setting network characteristic to carry out the sub-district gravity treatment.
16. terminal as claimed in claim 15 is characterized in that, gravity treatment unit, described sub-district comprises the first gravity treatment unit and/or the second gravity treatment unit, wherein:
The first gravity treatment unit is used for each sub-district in the described adjacent cell list being carried out the measurement of channel relevant parameter when described adjacent cell list does not carry the information of other sub-districts except that the sub-district of described support setting network characteristic; Determine order that the sub-district gravity treatment is carried out in one or more sub-districts in the described adjacent cell list according to measurement result, and the sub-district gravity treatment is carried out in described one or more sub-districts according to this order;
The second gravity treatment unit, be used for when described adjacent cell list carries the corresponding relation of identification information of the identification information of sub-district of described support setting network characteristic and described setting network characteristic, from described adjacent cell list, search the identification information corresponding district sign of described setting network characteristic, preferentially the cell ID corresponding district that finds is carried out the sub-district gravity treatment.
17. terminal as claimed in claim 16 is characterized in that, the described second gravity treatment unit is used for:
Each sub-district in the described adjacent cell list is carried out the measurement of channel received signal power;
Calculate the mass parameter R of each sub-district in the described adjacent cell list according to measurement result
n, and, according to the mass parameter R of the described cell ID corresponding district that finds of following formula calculating
n:
R
n=Q
Means, n-K * Qoffset
S, n, described Q
Means, nBe the received signal power that on the Primary Common Control Physical Channel P-CCPCH of described sub-district, records, described Qoffset
S, nSide-play amount when being the sub-district gravity treatment between two sub-districts, described K is greater than 0 and less than 1 decimal;
According to each R that calculates
nValue is determined order that the sub-district gravity treatment is carried out in one or more sub-districts in the described adjacent cell list, and according to this order the sub-district gravity treatment is carried out in described one or more sub-districts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100938980A CN102026310A (en) | 2009-09-23 | 2009-09-23 | Method, system and device for cell reselection by terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100938980A CN102026310A (en) | 2009-09-23 | 2009-09-23 | Method, system and device for cell reselection by terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102026310A true CN102026310A (en) | 2011-04-20 |
Family
ID=43867009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100938980A Pending CN102026310A (en) | 2009-09-23 | 2009-09-23 | Method, system and device for cell reselection by terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102026310A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103024918A (en) * | 2011-09-27 | 2013-04-03 | 中兴通讯股份有限公司 | Cell user processing method and device |
| CN104584631A (en) * | 2012-08-24 | 2015-04-29 | 高通股份有限公司 | Intelligent inter radio access technology measurement reporting |
| WO2019137337A1 (en) * | 2018-01-09 | 2019-07-18 | 维沃移动通信有限公司 | Cell selection method, terminal, and network device |
| WO2019154061A1 (en) * | 2018-02-08 | 2019-08-15 | 株式会社Ntt都科摩 | Wireless communication method and corresponding base station and user terminal |
-
2009
- 2009-09-23 CN CN2009100938980A patent/CN102026310A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103024918A (en) * | 2011-09-27 | 2013-04-03 | 中兴通讯股份有限公司 | Cell user processing method and device |
| WO2013044661A1 (en) * | 2011-09-27 | 2013-04-04 | 中兴通讯股份有限公司 | Method and device for processing cell users |
| CN104584631A (en) * | 2012-08-24 | 2015-04-29 | 高通股份有限公司 | Intelligent inter radio access technology measurement reporting |
| CN104584631B (en) * | 2012-08-24 | 2016-11-09 | 高通股份有限公司 | Measurement report between cognitive radio access technology |
| WO2019137337A1 (en) * | 2018-01-09 | 2019-07-18 | 维沃移动通信有限公司 | Cell selection method, terminal, and network device |
| WO2019154061A1 (en) * | 2018-02-08 | 2019-08-15 | 株式会社Ntt都科摩 | Wireless communication method and corresponding base station and user terminal |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103327546B (en) | Residence reselecting and device | |
| CN101686531B (en) | Method for selecting network by multi-mode terminal and multi-mode terminal thereof | |
| CN101730164B (en) | Method and terminal for reselecting cell | |
| CN101959263A (en) | Method and device for transmitting radio link failure information | |
| CN101873637B (en) | Mobile communication devices, methods and systems of priority load balance | |
| CN102438294B (en) | Method for accessing M2M (machine-to-machine) terminal to network and M2M communication system | |
| CN101132614B (en) | Cell re-selection method, device and system | |
| CN102740414A (en) | Method for selecting communication network, terminal, and network-side equipment | |
| EP3101933A1 (en) | Physical cell identifier allocation method and apparatus | |
| US20160255547A1 (en) | Method and apparatus for establishing cell reselection list | |
| CN101742580B (en) | Cell reselecting method and device | |
| CN102026310A (en) | Method, system and device for cell reselection by terminal | |
| CN108271225B (en) | Network acquisition method and device | |
| CN105338591B (en) | Method and device for searching high-speed network in high-speed network edge cell | |
| CN102231901A (en) | Method for ensuring mobile terminal to reside in network and mobile terminal | |
| CN109996238B (en) | C-RAN network planning method and device | |
| MX2022012486A (en) | Method and user equipment for cell (re) selection. | |
| EP3217744A1 (en) | Method and apparatus for adjusting air interface capacity density | |
| CN102833789A (en) | Load balancing method for LET (Long Term Evolution) network | |
| CN104170421A (en) | Wireless local area network access method, base station controller and user equipment | |
| CN101835217B (en) | Cell selection method and device in reselected cells determined by multiple reselection modes | |
| CN106686668A (en) | Selection method of voice fallback cell and apparatus thereof | |
| CN103188750A (en) | Switching method, node and system | |
| CN103260171B (en) | A kind of method of cell measurement gravity treatment and terminal | |
| CN106922010A (en) | The method and wireless terminal of wireless terminal selection network |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110420 |