CN101772118B - Cell reselection method and cell reselection device - Google Patents
Cell reselection method and cell reselection device Download PDFInfo
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- CN101772118B CN101772118B CN200810247434.6A CN200810247434A CN101772118B CN 101772118 B CN101772118 B CN 101772118B CN 200810247434 A CN200810247434 A CN 200810247434A CN 101772118 B CN101772118 B CN 101772118B
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- residential quarter
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
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Abstract
The embodiment of the invention relates to a cell reselection method and a cell reselection device. The cell reselection method comprises the following steps: receiving a priority distributed to cells by a base station; and reselecting the cells according to the priority of the cells and a road damage measuring result. The cell reselection device comprises a first receiving unit and a reselection unit, wherein the first receiving unit is used for receiving the priority distributed to the cells by the base station; and the reselection unit is used for reselecting the cells according to the priority of the cells and the road damage measuring result. When reselecting heterogeneous network cells, the cell reselection method and the cell reselection device can avoid unnecessary uplink interference caused by selecting the cells mistakenly so as to improve the throughput of a system.
Description
Technical field
The embodiment of the invention relates to communication technical field, particularly a kind of residence reselecting and device.
Background technology
Development along with mobile communication technology, mobile communication system has developed into the third generation, in order to keep long-term competitive advantage, the standard formulation work of long evolving system (LTE) is carried out, simultaneously, user's demand is also more and more diversified, and system equipment variation also occurs in order to adapt to this demand, and networks such as the inside coverage base station of covering and enterprise-level and some other focus coverings arise at the historic moment in the family room that receives much concern.This network can be Home eNodeB (Home NodeB), access point (Access Point, AP), private network (Private Network), Microcell (micro cell) and picocell (pico cell) etc.The characteristics of these residential quarters are that coverage is little, and the transmitting power of its base station can be smaller than macrocell.(3rd Generation Partnership Project in some motions 3GPP), thinks that the base station transmitting power of the residential quarter that macrocell and this covering are little may differ 16dB in third generation partner program.
In the tenth version (R10) stage of LTE to LTE, along with the proposition that improves throughput of system and improve demands such as edge efficient, relaying (relay) node and coordination multiple spot send and receive (CoordinatedMultipoint Transmission/Reception, CoMP) AP in is introduced into, the coverage of these nodes is also less relatively, and transmitting power is also less.
Residential quarter selection and gravity treatment are based on the reception signal level of residential quarter in LTE and Wideband Code Division Multiple Access (WCDMA) access (WCDMA), for example reference signal sign indicating number power (RSCP), Reference Signal Received Power (RSRP), Reference Signal Received Quality (RSRQ) or reception signal strength indication (RSSI) etc.The selection of carrying out the residential quarter in LTE and gravity treatment meeting are adopted different processing methods according to scene different.Under the alien frequencies scene, the selection of residential quarter and gravity treatment are based on priority, are higher than the adjacent residential quarter of Serving cell for priority, as long as its signal level is higher than preset threshold, then terminal can be chosen on the adjacent residential quarter of high priority.Priority when adjacent residential quarter is lower than Serving cell, have only and when not having suitable same frequency and high priority residential quarter, just will consider adjacent residential quarter, and need satisfy following condition: the reception signal level of Serving cell is lower than preset threshold, and the reception signal level of the adjacent residential quarter of low priority just can be chosen on the adjacent residential quarter of low priority when being higher than preset threshold.Under with scene frequently, because the frequency of residential quarter all is identical, so the priority of residential quarter also is identical; Under the scene of alien frequencies, also can there be the identical situation of priority.Residential quarter gravity treatment under the priority same case is based on ordering (R) criterion, has namely considered the adjustment parameter of residential quarter, then the residential quarter of selective reception signal level maximum.
Do the criterion (R criterion) that the residential quarter gravity treatment is judged according to present to receive signal level, the order that the residential quarter is selected is to select high priority earlier, if do not satisfy the residential quarter of the high priority that receives the signal level threshold value, selection is frequently same or alien frequencies and same priority again, if with frequently or the residential quarter of alien frequencies and same priority do not satisfy and receive the signal level threshold value, select low priority again.
The inventor states on the implementation in the process of technical scheme and finds: the scene that is in macrocell and pico cell when terminal equipment (UE); when with as the pico cell of adjacent residential quarter and macrocell under with situation frequently; because the transmitting power of macrocell is than the big 16dB of transmitting power of pico cell; therefore the reception signal level of the macrocell that measures of UE usually can be greater than the reception signal level of pico cell, UE also just easier selection macrocell as Serving cell.Certainly, for this situation, if Serving cell also is co-frequency cell, so also can be because of the reception signal level of the macrocell reception signal level greater than pico cell, and cause UE to be difficult to gravity treatment to pico cell.When pico cell is the residential quarter of low priority, have only the reception signal level as that macrocell of Serving cell to be lower than corresponding threshold value, and when the reception signal level of picocell is higher than preset threshold, UE just may select pico cell as persistent district, and, if pico cell residential quarter and other macrocells are all the adjacent residential quarter of low priority, because the reception signal level of macrocell is usually greater than the reception signal level of pico cell, UE still easier selection macrocell as Serving cell.What the macrocell here represented is the radio node of big transmitting power, and pico cell representative is the little radio node of transmitting power.Two kinds of dissimilar nodes have been formed heterogeneous network.When above-mentioned pico cell is substituted by other transmitting powers residential quarter smaller than macrocell, select the method for persistent district identical with said method.
By above-mentioned analysis as can be seen, UE selects macrocell as Serving cell.And the transmitting power that this selection of UE can cause UE to initiate when professional to Serving cell is stronger, and stronger interference is caused in adjacent residential quarter.That is to say, when UE is in the different heterogeneous network of the transmitting power of cell base station, according to existing when receiving signal level as the basis for estimation of the Serving cell of selecting UE, the Serving cell of the UE that may occur selecting is improper, transmitting power when causing UE to initiate from business to Serving cell is stronger, stronger interference is caused in adjacent residential quarter, thereby cause defectives such as the increase of network system interference signal, throughput of system reduction.
Summary of the invention
The embodiment of the invention provides a kind of residence reselecting and device, when carrying out the gravity treatment of heterogeneous network residential quarter to be implemented in, avoids disturbing because of the unnecessary uplink that mistake selects the residential quarter to cause.
The embodiment of the invention provides a kind of residence reselecting, and this method comprises:
It is the priority of the cell allocation in the heterogeneous network that terminal equipment receives the base station, and described heterogeneous network comprises the node of at least two kinds of emitting power grades;
Terminal equipment carries out the residential quarter gravity treatment in the heterogeneous network according to priority and the path loss measurement result of described residential quarter.
The embodiment of the invention provides a kind of residential quarter gravity concentration apparatus, and this device comprises:
First receiving element, being used for receiving the base station is the priority of the cell allocation of heterogeneous network, described heterogeneous network comprises the node of at least two kinds of emitting power grades;
The gravity treatment unit is used for priority and path loss measurement result according to described residential quarter, carries out the residential quarter gravity treatment in the heterogeneous network.
Above-mentioned residence reselecting and device when gravity treatment is carried out in the heterogeneous network residential quarter, have been taken all factors into consideration precedence information and the path loss situation of residential quarter, thereby can avoid disturbing because of the unnecessary uplink that mistake selects the residential quarter to cause, and have improved the throughput of system.
Description of drawings
Fig. 1 is the flow chart of residence reselecting embodiment one of the present invention;
Fig. 2 is the flow chart of residence reselecting embodiment two of the present invention;
Fig. 3 is the flow chart of residence reselecting embodiment three of the present invention;
Fig. 4 is the flow chart of residence reselecting embodiment four of the present invention;
Fig. 5 is the flow chart of residence reselecting embodiment five of the present invention;
Fig. 6 is the flow chart of residence reselecting embodiment six of the present invention;
Fig. 7 is the flow chart of residence reselecting embodiment seven of the present invention;
Fig. 8 is the flow chart of residence reselecting embodiment eight of the present invention;
Fig. 9 is the structural representation of residential quarter gravity concentration apparatus embodiment of the present invention.
Embodiment
The inventor is by analyze finding, because only carry out the residential quarter gravity treatment according to received power, and do not consider the situation of path loss in the prior art, so it is resident to macrocell to cause UE in most of the cases can select.And when UE select resident to the macrocell after, if UE arrives the path loss of pico cell greater than UE to the path loss of macrocell, just UE sends data to macrocell and need use higher transmitting power than sending to the pico residential quarter, thereby, UE is if initiate professional to macrocell, can cause strong jamming to pico cell, thereby reduce the throughput of system.
For this reason, the invention provides following examples.Below by drawings and Examples, technical scheme of the present invention is described in further detail.
As shown in Figure 1, be the flow chart of residence reselecting embodiment one of the present invention, this method comprises:
Step a, reception base station are the priority of cell allocation;
Step b, according to priority and the path loss measurement result of above-mentioned residential quarter, carry out the residential quarter gravity treatment.
The present invention has considered precedence information and the path loss situation of residential quarter, carries out the residential quarter gravity treatment; Because path loss has reacted the situation of the large scale decay between UE and the node, thereby it is best to reflect faithfully that UE arrives the wireless channel of which node, thereby can avoid selecting wrong residential quarter, causes unnecessary uplink to disturb.With residence reselecting embodiment two to embodiment eight of the present invention, the process of residential quarter gravity treatment is described at different situations below.
An embodiment of the present invention residence reselecting comprises:
Receiving the base station is the priority of each cell allocation, and above-mentioned residential quarter comprises Serving cell and adjacent residential quarter;
According to priority and the path loss measurement result of above-mentioned each residential quarter, carry out the residential quarter gravity treatment.
This embodiment is under the alien frequencies situation, and path loss and priority are carried out the residential quarter gravity treatment as the reference condition, and specific embodiment sees residence reselecting embodiment two of the present invention for details.
As shown in Figure 2, be the flow chart of residence reselecting embodiment two of the present invention, this method comprises:
Terminal equipment is before the reception base station is the priority of each cell allocation, and the base station is priority of each cell allocation according to the frequency layer at place, residential quarter by common signaling mode or dedicated signaling mode.
When the priority of the priority ratio Serving cell of adjacent residential quarter is high, if the path loss of adjacent residential quarter satisfies the condition of setting, then select this neighbour residential quarter as persistent district.
When the priority of the priority of adjacent residential quarter and Serving cell is identical, similar with the received power mode, also select persistent district according to ranking criteria, just wherein use the setting of amount of hysteresis and amount of bias different with the received power mode, be based on that the path loss mode arranges, concrete formula is as follows:
R
S＝Q
meas，s+Qhyst
s
R
n＝Q
meas，n-Q
offset
Wherein, Rs is the path loss overall result of Serving cell, and Qmeas, s are the circuit loss value that Serving cell measures, and Qhyst s is the amount of hysteresis that adds for Serving cell.Rn is the path loss overall result of adjacent residential quarter, and Qmeas, n are the circuit loss value that measures of adjacent residential quarter, and Qoffset is the amount of bias that arranges for adjacent residential quarter.
When the priority of the priority ratio Serving cell of adjacent residential quarter is low and the received power mode similar, have only the path loss of Serving cell greater than preset threshold, and the path loss of low priority residential quarter is when setting thresholding, just selecting the low priority residential quarter is persistent district.
Above-mentioned residence reselecting in the situation that is the basis consideration path loss of Serving cell and adjacent cell allocation priority, carries out gravity treatment to the heterogeneous network residential quarter, has avoided disturbing because of the unnecessary uplink that mistake selects the residential quarter to cause, and has improved the throughput of system.
The another kind of embodiment residence reselecting of the present invention comprises:
Receiving the base station is separately path loss threshold value or the received power threshold with adjacent residential quarter setting of different priorities;
When the satisfied path loss threshold value of setting in adjacent residential quarter and/or received power threshold, carry out the residential quarter gravity treatment according to the measurement result of path loss or received power.
This embodiment is under the alien frequencies situation, and path loss and received power level as the reference condition, have also been considered that the factor of priority carries out the residential quarter gravity treatment simultaneously, and specific embodiment sees residence reselecting embodiment three to embodiment six of the present invention for details.
As shown in Figure 3, be the flow chart of residence reselecting embodiment three of the present invention, this method comprises:
Above-mentioned adjacent residential quarter with different priorities comprise have high priority, the adjacent residential quarter of low priority and equal priority, above-mentioned path loss threshold value can be identical, also can be different.
When the path loss condition is satisfied separately in the residential quarter with different priorities, can carry out the selection of persistent district according to the residential quarter reselection criterion of its received power level.
Certainly, these satisfy the residential quarter of path loss condition separately, can be all adjacent residential quarters, also can be a part of adjacent residential quarters, if only some adjacent residential quarter meets the demands, then can only select according to priority in the residential quarter in this section.
Above-mentioned residence reselecting carries out gravity treatment based on the received power level to the heterogeneous network residential quarter under the situation of considering path loss, avoided disturbing because of the unnecessary uplink that mistake selects the residential quarter to cause, and has improved the throughput of system.
As shown in Figure 4, be the flow chart of residence reselecting embodiment four of the present invention, this method comprises:
Above-mentioned adjacent residential quarter with different priorities comprise have high priority, the adjacent residential quarter of low priority and equal priority; Above-mentioned received power threshold can be identical, also can be different.
When the received power condition is satisfied separately in the residential quarter with different priorities, can carry out the selection of persistent district according to it based on the residential quarter reselection criterion of path loss; Residential quarter reselection criterion based on path loss is identical with the step 102-step 105 among the residence reselecting embodiment two of the present invention, does not give unnecessary details at this.
Certainly, these satisfy the residential quarter of received power condition separately, can be all adjacent residential quarters, also can be a part of adjacent residential quarters, if only some adjacent residential quarter meets the demands, then can only select according to circuit loss value and priority in the residential quarter in this section.
Above-mentioned residence reselecting on the basis of considering the received power level, carries out gravity treatment based on the path loss situation to the heterogeneous network residential quarter, has avoided disturbing because of the unnecessary uplink that mistake selects the residential quarter to cause, and has improved the throughput of system.
As shown in Figure 5, be the flow chart of residence reselecting embodiment five of the present invention, the priority of adjacent residential quarter is higher than the priority of Serving cell in this embodiment, and this method comprises:
Step 401, reception base station are path loss threshold value and the received power threshold that the adjacent residential quarter of high priority arranges.
The base station of network side is that the adjacent residential quarter of high priority is provided with path loss and two threshold values of received power; Terminal equipment receives above-mentioned two threshold values.Wherein, owing to be provided with the path loss threshold value, so that terminal is selected the residential quarter by path loss, therefore the received power threshold that arranges just can be not as the key factor of residential quarter selection, the purpose that this received power threshold is set is that the minimum requirements that normal service is provided for terminal can be satisfied in the residential quarter that assurance is chosen.
Step 402, select circuit loss value less than path loss threshold value and received power greater than the adjacent residential quarter of received power threshold as persistent district.
Terminal equipment selects to satisfy simultaneously the residential quarter of two setting thresholds as persistent district.
Step 403, when the adjacent residential quarter that is selected as persistent district when being a plurality of, according to circuit loss value from small to large order or by the adjacent residential quarter of received power selective sequential from big to small as persistent district.
Selecting adjacent residential quarter as persistent district when north has when a plurality of, terminal equipment according to circuit loss value from small to large order or by the adjacent residential quarter of received power selective sequential from big to small as persistent district.
Above-mentioned residence reselecting, when the priority in adjacent residential quarter is higher than the priority of Serving cell, take all factors into consideration under the situation of received power level and path loss, gravity treatment is carried out in the heterogeneous network residential quarter, thereby avoided comprising simultaneously under the situation of macrocell and pico cell residential quarter in adjacent residential quarter, the preferential problem of selecting the bigger macrocell of path loss in the prior art has also namely been avoided disturbing because of the unnecessary uplink that mistake selects the residential quarter to cause, and has improved the throughput of system.
As shown in Figure 6, be the flow chart of residence reselecting embodiment six of the present invention, the priority of adjacent residential quarter is lower than the priority of Serving cell in this embodiment, and this method comprises:
Step 501, receive separately path loss threshold value and received power threshold that Serving cell that the base station is respectively the adjacent residential quarter of low priority and high priority arranges.
The base station of network side arranges path loss and two threshold values of received power for the adjacent residential quarter of low priority and the Serving cell of high priority separately; Terminal equipment receives above-mentioned two threshold values.
Step 502, when the circuit loss value of Serving cell greater than the received power of the path loss threshold value of Serving cell and/or the Serving cell received power threshold less than Serving cell, and the path loss of adjacent residential quarter during greater than the received power threshold of adjacent residential quarter, selects adjacent residential quarter as persistent district less than the received power of the path loss threshold value of adjacent residential quarter and adjacent residential quarter.
When two threshold values that Serving cell satisfy to be set simultaneously, when perhaps only satisfying one of them setting threshold, and adjacent residential quarter is when satisfying two threshold values setting simultaneously, and terminal equipment can select adjacent residential quarter as persistent district.
Step 503, when the adjacent residential quarter that is selected as persistent district when being a plurality of, according to circuit loss value from small to large order or by the adjacent residential quarter of received power selective sequential from big to small as persistent district.
When the adjacent residential quarter that can be used as persistent district has when a plurality of, terminal equipment can select best residential quarter as persistent district according to path loss or received power level.
Above-mentioned residence reselecting, when the priority in adjacent residential quarter is lower than the priority of Serving cell, take all factors into consideration under the situation of received power level and path loss, gravity treatment is carried out in the heterogeneous network residential quarter, avoided disturbing because of the unnecessary uplink that mistake selects the residential quarter to cause, improved the throughput of system.
Embodiment of the invention residence reselecting comprises:
According to the transmitting power of the same priority residential quarter that comprises in the information from the base station, calculate the path loss of each same priority residential quarter correspondence;
Be received as the high priority message of the little same priority residential quarter setting of path loss or the amount of bias information of increase; This amount of bias information can be provided by the base station, and the little adjacent residential quarter of path loss is the adjacent residential quarter that the path loss difference of the path loss of Serving cell and adjacent residential quarter reaches preset threshold;
According to above-mentioned high priority message according to priority from high to low order or select the same priority residential quarter according to above-mentioned amount of bias information according to the ranking criteria that increases after the above-mentioned amount of bias.
This embodiment is under the situation with frequency or same priority, and path loss and received power level are carried out the gravity treatment of residential quarter as the reference condition, and specific embodiment sees residence reselecting embodiment seven to embodiment eight of the present invention for details.
As shown in Figure 7, be the flow chart of residence reselecting embodiment seven of the present invention, this method comprises:
The base station is by the transmitting power of mode broadcast service residential quarter such as broadcasting and adjacent residential quarter, and UE can calculate the path loss situation of Serving cell and adjacent residential quarter according to the transmitting power of reception.
When the path loss difference of Serving cell and adjacent residential quarter reaches setting threshold, then determine the priority height of the residential quarter that path loss is little.The threshold value of this moment can be absolute threshold, also can be relative threshold.
Terminal equipment is according to the above-mentioned same priority of priority selective sequential from high to low residential quarter.
Above-mentioned residence reselecting, under the same priority situation, consider that path loss is that the residential quarter arranges different priority, and then based on above-mentioned precedence information to carrying out the residential quarter gravity treatment, avoided disturbing because of the unnecessary uplink that mistake selects the residential quarter to cause, improved the throughput of system.
As shown in Figure 8, be the flow chart of residence reselecting embodiment eight of the present invention, this method comprises:
According to the received power level of transmitting power or power level and UE, UE can calculate path loss situation or the path loss rank of Serving cell and adjacent residential quarter.
According to path loss situation or path loss rank, the base station can increase an amount of bias Q for the little side of path loss
PasslothLike this no matter be according to the received power mode, or path loss mode, the perhaps mode of both combinations, the residential quarter that path loss is little all can obtain the configuration of an amount of bias, make that the reception signal level of the residential quarter that path loss is little is higher, thereby make its last ranking results better, UE is also with regard to the easier little residential quarter of path loss of choosing.But this inclined to one side value amount Q
PathlossBe not a man-to-man inclined to one side value amount, but to a general amount of bias of the little residential quarter of path loss, can with the R criterion in man-to-man inclined to one side value amount make a distinction, concrete formula is as follows:
R
S＝Q
meas，s+Qhyst
s
R
n＝Q
meas，n-Q
offset-Q
pathloss
UE can select above-mentioned same priority residential quarter according to the ranking criteria after the above-mentioned amount of bias of increase.
Above-mentioned residence reselecting, under the situation of same priority, consider the path loss situation, adopt the ranking criteria based on the path loss setting that gravity treatment is carried out in the heterogeneous network residential quarter of same priority, avoided disturbing because of the unnecessary uplink that mistake selects the residential quarter to cause, improved the throughput of system.
As shown in Figure 9, be the structural representation of residential quarter gravity concentration apparatus embodiment of the present invention, this device comprises: first receiving element 11, and being used for receiving the base station is the priority of cell allocation; Gravity treatment unit 12 is used for priority and path loss measurement result according to above-mentioned residential quarter, carries out the residential quarter gravity treatment.
Wherein, above-mentioned residential quarter can comprise Serving cell and adjacent residential quarter, and above-mentioned gravity treatment unit can comprise the first gravity treatment module, second gravity treatment module or the triple modeling pieces; The first gravity treatment module is used for priority when the priority ratio Serving cell of adjacent residential quarter when high, less than preset threshold, then selects above-mentioned adjacent residential quarter as persistent district as if the path loss of adjacent residential quarter; The second gravity treatment module is used for priority when the priority of adjacent residential quarter and Serving cell when identical, selects persistent district according to ranking criteria, and wherein, the amount of hysteresis of using in the above-mentioned ranking criteria and amount of bias are based on that the path loss mode arranges; Triple modeling pieces are used for priority when the priority ratio Serving cell of adjacent residential quarter when low, and greater than preset threshold, and the path loss of adjacent residential quarter then selects above-mentioned adjacent residential quarter as persistent district during less than preset threshold as if the path loss of Serving cell.
For on the basis of precedence information, path loss situation, factors such as consideration received power level are carried out the residential quarter gravity treatment, said apparatus can also comprise: second receiving element 13, and being used for receiving the base station after above-mentioned first receiving element 11 receives the priority that the base station is cell allocation is separately path loss threshold value and/or the received power threshold with adjacent residential quarter setting of different priorities; Above-mentioned gravity treatment unit 12 is used for carrying out the residential quarter gravity treatment according to the measurement result of path loss or received power when the satisfied path loss threshold value of setting in adjacent residential quarter and/or received power threshold.Above-mentioned unit again can comprise further: quadruple modeling piece, the circuit loss value that is used for when all adjacent residential quarters at least one adjacent residential quarter with different priorities is during less than separately path loss threshold value, according to the priority of adjacent residential quarter received power and adjacent residential quarter, from above-mentioned adjacent residential quarter less than the path loss threshold value, select persistent district; Or, the 5th gravity treatment module, the received power that is used for when all adjacent residential quarters at least one adjacent residential quarter with different priorities according to the priority of adjacent residential quarter circuit loss value and adjacent residential quarter, is selected persistent district during greater than separately received power threshold from above-mentioned adjacent residential quarter greater than received power threshold; Or sixfold modeling piece is used for when the priority of adjacent residential quarter is higher than Serving cell, the selection circuit loss value less than path loss threshold value and received power greater than the adjacent residential quarter of received power threshold as persistent district.
In addition, said apparatus can also comprise: the 3rd receiving element 14, and being used for receiving base stations at second receiving element 13 is that to receive the base station after having path loss threshold value separately that the adjacent residential quarter of different priorities arranges or received power threshold be separately path loss threshold value or the received power threshold with Serving cell setting of different priorities; Above-mentioned gravity treatment unit 12 comprises: septuple modeling piece, be used for when the priority of adjacent residential quarter is lower than Serving cell, when the circuit loss value of Serving cell greater than the received power of the path loss threshold value of Serving cell and/or the Serving cell received power threshold less than Serving cell, and the path loss of adjacent residential quarter during greater than the received power threshold of adjacent residential quarter, selects adjacent residential quarter as persistent district less than the received power of the path loss threshold value of adjacent residential quarter and adjacent residential quarter.
Further, when selected adjacent residential quarter as persistent district by sixfold modeling piece or septuple new module be a plurality of, can by select module according to circuit loss value from small to large order or by the adjacent residential quarter of received power selective sequential from big to small as persistent district.
In order to carry out the residential quarter gravity treatment in the residential quarter to same priority, said apparatus can also comprise: computing unit 15, be used for after above-mentioned first receiving element 11 reception base stations are the priority of cell allocation, according to the transmitting power of the same priority residential quarter that comprises in the information from the base station, calculate the path loss of each same priority residential quarter correspondence; Above-mentioned gravity treatment unit 12 comprises: processing unit, be used for receiving from the high priority message of base station or the amount of bias information of increase, when the path loss difference of amount of bias information from base station in Serving cell and adjacent residential quarter of above-mentioned high priority message or increase reaches setting threshold, for the little same priority residential quarter of path loss arranges; The gravity treatment module, be used for according to above-mentioned high priority message according to priority from high to low order or select above-mentioned same priority residential quarter according to above-mentioned amount of bias information according to the ranking criteria that increases after the above-mentioned amount of bias.Wherein, above-mentioned threshold value can be relative threshold, also can be absolute threshold.
Above-mentioned residential quarter gravity concentration apparatus, receiving the base station by first receiving element is the priority of each cell allocation, by second receiving element, the 3rd receiving element for the different priorities residential quarter arranges different path loss threshold values or received power threshold, calculate path loss by computing unit for the same priority residential quarter, be implemented under the situation of considering path loss and received power level by the gravity treatment unit, gravity treatment is carried out in the heterogeneous network residential quarter, avoided disturbing because of the unnecessary uplink that mistake selects the residential quarter to cause, improved the throughput of system.
It should be noted last that, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although with reference to preferred embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not break away from the spirit and scope of technical solution of the present invention.
Claims (12)
1. a residence reselecting is characterized in that, comprising:
It is the priority of the cell allocation in the heterogeneous network that terminal equipment receives the base station, and described heterogeneous network comprises the node of at least two kinds of emitting power grades;
Terminal equipment carries out the residential quarter gravity treatment in the heterogeneous network according to priority and the path loss measurement result of described residential quarter;
Wherein, described priority and path loss measurement result according to described residential quarter are carried out the residential quarter gravity treatment in the heterogeneous network, comprise one of the following or combination in any:
When the priority of the priority ratio Serving cell of adjacent residential quarter is high, if the path loss of adjacent residential quarter then selects described adjacent residential quarter as persistent district less than preset threshold;
When the priority of the priority of adjacent residential quarter and Serving cell is identical, select persistent district according to ranking criteria, wherein, the amount of hysteresis of using in the described ranking criteria and amount of bias are based on that the path loss mode arranges;
When the priority of the priority ratio Serving cell of adjacent residential quarter was low, if the path loss of Serving cell is greater than preset threshold, and the path loss of adjacent residential quarter then selected described adjacent residential quarter as persistent district during less than preset threshold.
2. residence reselecting according to claim 1 is characterized in that, described priority and path loss measurement result according to described residential quarter carry out also comprising before the residential quarter gravity treatment in the heterogeneous network:
Receiving the base station is separately path loss threshold value and/or the received power threshold with adjacent residential quarter setting of different priorities;
Described priority and path loss measurement result according to described residential quarter, the residential quarter gravity treatment of carrying out in the heterogeneous network comprises:
When the satisfied path loss threshold value of setting in adjacent residential quarter and/or received power threshold, carry out the residential quarter gravity treatment according to the measurement result of path loss or received power.
3. residence reselecting according to claim 2 is characterized in that, and is described when the satisfied path loss threshold value of setting in adjacent residential quarter and/or received power threshold, carries out the residential quarter gravity treatment according to the measurement result of path loss or received power and comprises:
When at least one has the circuit loss value of the adjacent residential quarter of different priorities less than separately path loss threshold value in all adjacent residential quarters, according to the priority of adjacent residential quarter received power and adjacent residential quarter, from described adjacent residential quarter less than the path loss threshold value, select persistent district; Or,
When at least one has the received power of the adjacent residential quarter of different priorities greater than separately received power threshold in all adjacent residential quarters, according to the priority of adjacent residential quarter circuit loss value and adjacent residential quarter, from described adjacent residential quarter greater than received power threshold, select persistent district; Or,
When the priority of adjacent residential quarter is higher than Serving cell, select circuit loss value less than path loss threshold value and received power greater than the adjacent residential quarter of received power threshold as persistent district.
4. residence reselecting according to claim 2 is characterized in that, when the described path loss threshold value of satisfy setting when adjacent residential quarter and/or received power threshold, carries out also comprising before the gravity treatment of residential quarter according to the measurement result of path loss or received power:
Receiving the base station is separately path loss threshold value and/or the received power threshold with Serving cell setting of different priorities;
Described when the satisfied path loss threshold value of setting in adjacent residential quarter and/or received power threshold, carry out the residential quarter gravity treatment according to the measurement result of path loss or received power and comprise:
When the priority of adjacent residential quarter is lower than Serving cell, when the circuit loss value of Serving cell greater than the received power of the path loss threshold value of Serving cell and/or the Serving cell received power threshold less than Serving cell, and the path loss of adjacent residential quarter during greater than the received power threshold of adjacent residential quarter, selects adjacent residential quarter as persistent district less than the received power of the path loss threshold value of adjacent residential quarter and adjacent residential quarter.
5. according to claim 3 or 4 described residence reselectings, it is characterized in that, also comprise:
When the adjacent residential quarter that is selected as persistent district when being a plurality of, according to circuit loss value from small to large order or by the adjacent residential quarter of received power selective sequential from big to small as persistent district.
6. residence reselecting according to claim 1 is characterized in that, described priority and path loss measurement result according to described residential quarter carry out also comprising before the residential quarter gravity treatment in the heterogeneous network:
According to the transmitting power of the same priority residential quarter that comprises in the information from the base station, calculate the path loss of each same priority residential quarter correspondence;
Described priority and path loss measurement result according to described residential quarter, carry out the residential quarter gravity treatment and comprise:
Described priority and path loss measurement result according to described residential quarter, the residential quarter gravity treatment of carrying out in the heterogeneous network comprises:
Be received as the high priority message of the little same priority residential quarter setting of path loss or the amount of bias information of increase; The adjacent residential quarter that path loss is little is the adjacent residential quarter that the path loss difference of the path loss of Serving cell and adjacent residential quarter reaches preset threshold;
According to described high priority message according to priority order from high to low, or according to described amount of bias information according to the ranking criteria that increases after the described amount of bias, select described same priority residential quarter.
7. a residential quarter gravity concentration apparatus is characterized in that, comprising:
First receiving element, being used for receiving the base station is the priority of the cell allocation of heterogeneous network, described heterogeneous network comprises the node of at least two kinds of emitting power grades;
The gravity treatment unit is used for priority and path loss measurement result according to described residential quarter, carries out the residential quarter gravity treatment in the heterogeneous network;
Wherein, described gravity treatment unit comprises:
The first gravity treatment module is used for priority when the priority ratio Serving cell of adjacent residential quarter when high, less than preset threshold, then selects described adjacent residential quarter as persistent district as if the path loss of adjacent residential quarter; And/or,
The second gravity treatment module is used for priority when the priority of adjacent residential quarter and Serving cell when identical, selects persistent district according to ranking criteria, and wherein, the amount of hysteresis of using in the described ranking criteria and amount of bias are based on that the path loss mode arranges; And/or,
Triple modeling pieces are used for priority when the priority ratio Serving cell of adjacent residential quarter when low, and greater than preset threshold, and the path loss of adjacent residential quarter then selects described adjacent residential quarter as persistent district during less than preset threshold as if the path loss of Serving cell.
8. residential quarter according to claim 7 gravity concentration apparatus is characterized in that, also comprises:
Second receiving element, being used for receiving after described first receiving element receives the priority that the base station is cell allocation the base station is separately path loss threshold value and/or the received power threshold with adjacent residential quarter setting of different priorities;
Described gravity treatment unit is used for carrying out the residential quarter gravity treatment according to the measurement result of path loss or received power when the satisfied path loss threshold value of setting in adjacent residential quarter and/or received power threshold.
9. residential quarter according to claim 8 gravity concentration apparatus is characterized in that described gravity treatment unit comprises:
Quadruple modeling piece, the circuit loss value that is used for when all adjacent residential quarters at least one adjacent residential quarter with different priorities is during less than separately path loss threshold value, according to the priority of adjacent residential quarter received power and adjacent residential quarter, from described adjacent residential quarter less than the path loss threshold value, select persistent district; Or,
The 5th gravity treatment module, the received power that is used for when all adjacent residential quarters at least one adjacent residential quarter with different priorities is during greater than separately received power threshold, according to the priority of adjacent residential quarter circuit loss value and adjacent residential quarter, from described adjacent residential quarter greater than received power threshold, select persistent district; Or,
Sixfold modeling piece is used for when the priority of adjacent residential quarter is higher than Serving cell, the selection circuit loss value less than path loss threshold value and received power greater than the adjacent residential quarter of received power threshold as persistent district.
10. residential quarter according to claim 9 gravity concentration apparatus is characterized in that, also comprises:
The 3rd receiving element, being used for receiving the base station is separately path loss threshold value and/or the received power threshold with Serving cell setting of different priorities;
Described gravity treatment unit comprises:
Septuple modeling piece, be used for when the priority of adjacent residential quarter is lower than Serving cell, when the circuit loss value of Serving cell greater than the received power of the path loss threshold value of Serving cell and/or the Serving cell received power threshold less than Serving cell, and the path loss of adjacent residential quarter during greater than the received power threshold of adjacent residential quarter, selects adjacent residential quarter as persistent district less than the received power of the path loss threshold value of adjacent residential quarter and adjacent residential quarter.
11. according to claim 9 or 10 described residential quarter gravity concentration apparatus, it is characterized in that, also comprise:
Select module, be used for when selected adjacent residential quarter as persistent district by sixfold modeling piece or septuple modeling piece be a plurality of, according to circuit loss value from small to large order or by received power selective sequential neighbour residential quarter from big to small as persistent district.
12. residential quarter according to claim 7 gravity concentration apparatus is characterized in that, also comprises:
Computing unit is used for according to the transmitting power of the same priority residential quarter that comprises in the information from the base station, calculating the path loss of each same priority residential quarter correspondence after described first receiving element reception base station is the priority of cell allocation;
Described gravity treatment unit comprises:
Processing unit is used for being received as the high priority message of the little same priority residential quarter setting of path loss or the amount of bias information of increase; The adjacent residential quarter that path loss is little is the adjacent residential quarter that the path loss difference of the path loss of Serving cell and adjacent residential quarter reaches preset threshold;
The gravity treatment module is used for according to described high priority message according to priority order from high to low, or according to described amount of bias information according to the ranking criteria that increases after the described amount of bias, select described same priority residential quarter.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810247434.6A CN101772118B (en) | 2008-12-31 | 2008-12-31 | Cell reselection method and cell reselection device |
| PCT/CN2009/076319 WO2010075799A1 (en) | 2008-12-31 | 2009-12-31 | Cell reselection method and device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200810247434.6A CN101772118B (en) | 2008-12-31 | 2008-12-31 | Cell reselection method and cell reselection device |
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| CN101772118A CN101772118A (en) | 2010-07-07 |
| CN101772118B true CN101772118B (en) | 2013-08-07 |
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| WO (1) | WO2010075799A1 (en) |
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| US9445337B2 (en) * | 2010-11-30 | 2016-09-13 | Blackberry Limited | Cell re-selection using a ranking algorithm |
| KR101496386B1 (en) * | 2010-11-30 | 2015-02-26 | 블랙베리 리미티드 | Cell re-selection in a cellular telecommunications network |
| CN102196415B (en) * | 2011-05-10 | 2014-01-08 | 新邮通信设备有限公司 | Method and equipment for triggering interference coordination of terminal in idle mode |
| CN102223666A (en) * | 2011-06-03 | 2011-10-19 | 电信科学技术研究院 | Measurement reporting method and equipment based on priority |
| CN102263328B (en) | 2011-06-07 | 2014-09-03 | 华为技术有限公司 | Multifrequency antenna remote control device and multifrequency antenna system |
| CN102368861A (en) * | 2011-09-15 | 2012-03-07 | 新邮通信设备有限公司 | Idle mode UE (user equipment) cell reselection method in long term evolution (LTE) system |
| CN103052122B (en) * | 2011-10-13 | 2016-03-30 | 华为技术有限公司 | The method of cell reselection, equipment and system |
| US20130244655A1 (en) * | 2012-02-29 | 2013-09-19 | Qualcomm Incorporated | Methods and devices for facilitating fast cell reselection at call release |
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| CN103391590B (en) * | 2012-05-11 | 2016-06-22 | 普天信息技术研究院有限公司 | The adjustment method of cell reselection parameter of heterogeneous network |
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| CN105517107B (en) * | 2014-09-26 | 2020-03-31 | 中兴通讯股份有限公司 | Heterogeneous network service cell selection method and device based on inter-cell cooperation |
| US9655022B2 (en) | 2014-10-30 | 2017-05-16 | Acer Incorporated | Method of cell reselection |
| TWI566612B (en) * | 2014-10-30 | 2017-01-11 | 宏碁股份有限公司 | Method of cell reselection |
| CN105554910B (en) * | 2015-09-30 | 2019-06-11 | 宇龙计算机通信科技(深圳)有限公司 | A kind of the mobile communications network control method and mobile terminal of mobile terminal |
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| CN101772118A (en) | 2010-07-07 |
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