CN103945462A - Assistance service cell configuration method and device - Google Patents
Assistance service cell configuration method and device Download PDFInfo
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Abstract
The invention discloses an assistance service cell configuration method and device. The method comprises the steps that a base station acquires the quantity of to-be-sent data of a target terminal; if the base station judges whether the quantity of the to-be-sent data of the target terminal reaches a cache congestion data quantity threshold; if the quantity of the to-be-sent data of the target terminal reaches the cache congestion data quantity threshold, the number of times of the quantity of the to-be-sent data continuously reaching the cache congestion data quantity threshold is counted so far; and if the counted number reaches the threshold of the number of times of cache congestion, the base station configures an assistance service cell for the target terminal. According to the invention, the assistance service cell is configured for the terminal according to the transmission requirement of the terminal.
Description
Technical field
The present invention relates to wireless communication field, relate in particular to a kind of auxiliary serving cell collocation method and equipment.
Background technology
LTE-A(Long Term Evolution Advanced, the Long Term Evolution strengthening) system introduced CA(Carrier Aggregation, carrier aggregation) technology, taking LTE member carrier bandwidth as base unit, obtain larger transmission bandwidth by the mode that the member carrier of multiple little bandwidth is condensed together.Wherein, the carrier wave of each participation polymerization is called CC(Component Carrier, member carrier).
In CA system, UE(User Equipment, user terminal) can there are multiple Serving cells simultaneously, UE can transmit and receive data on these multiple Serving cells simultaneously.In CA system, the Serving cell of UE is divided into two classes: PCell(Primary Cell, main Serving cell) and SCell(Secondary Cell, auxiliary serving cell).Wherein, PCell inherits the character of Serving cell in LTE system, and SCell is only used as additional resource, only bears and counts the energy of passing on Gong.Accordingly, the member carrier that PCell is corresponding is called PCC(Primary Component Carrier, main member carrier), the member carrier that SCell is corresponding is called SCC(Secondary Component Carrier, auxiliary member carrier).
PCell/PCC is from the angle of UE, and different UE can be using different CC as PCC.For a UE, PCell is certain existence, and each UE only has a PCell, and SCell can pass through RRC(Radio Resource Control, Radio Resource control) signaling is static or semi-static configuration, and the configuration of SCell comprises the deletion of the interpolation of SCell, SCell and the amendment of SCell.It is descending CC that PCell comprises DL CC() and UL CC(be up CC), SCell can only have DL CC, but can not only have UL CC.
At present for the UE that possesses CA ability, conventionally statically for it configures multiple SCell.
Do not consider at present the actual transmissions demand of UE for the method for UE static configuration SCell.In LTE-A system, the kind of business is varied, for different business, and not only traffic needs difference, and present different burst characteristic.Therefore,, for different UE, its transmission demand is different.For same UE, along with the continuous variation of this UE business, it also has different transmission demands in different time sections.Conventionally base station can be measured for UE configures RRC on each place, Serving cell frequency; UE configures multiple SCell always if; when UE transmission demand hour; now UE does not have transfer of data or data transmission efficiency extremely low on SCell; but UE still need to measure and report on frequency corresponding to these SCell, will certainly bring so unnecessary measurement and report expense.
Summary of the invention
The embodiment of the present invention provides a kind of auxiliary serving cell collocation method and equipment, in order to being terminal configuration auxiliary serving cell according to the transmission demand of terminal.
In the auxiliary serving cell collocation method that the embodiment of the present invention provides, the cycle execution according to setting:
Base station obtains the data volume to be sent of target terminal;
Described base station judges whether the data volume to be sent of described target terminal reaches the congested data volume thresholding of buffer memory, and in the situation that being judged as YES, count on current till the data volume of data to be sent reach continuously the number of times of the congested data volume thresholding of buffer memory;
If the number of times that statistics obtains reaches buffer memory times of congestion thresholding, described base station is described target terminal configuration auxiliary serving cell.
The base station equipment that the embodiment of the present invention provides, comprising: acquisition module, judging module, statistical module and configuration module, wherein:
Described acquisition module, for obtaining the data volume to be sent of target terminal;
Described judging module, for judging according to the cycle of setting whether the data volume to be sent of described target terminal reaches the congested data volume thresholding of buffer memory, and in the situation that being judged as YES, indicate described statistical module counts till the data volume of current data to be sent is greater than the number of times of the congested data volume thresholding of buffer memory continuously, and the number of times going out in described statistical module counts reaches buffer memory times of congestion thresholding, indicating described configuration module is described target terminal configuration auxiliary serving cell;
Statistical module, for count on current till the data volume of data to be sent reach continuously the number of times of the congested data volume thresholding of buffer memory;
Configuration module, is used to described target terminal configuration auxiliary serving cell.
In the above embodiment of the present invention, base station judges according to the current data volume to be sent of terminal, in the time that the current Serving cell of terminal cannot meet the transfer of data demand of this terminal, terminal is carried out to SCell and adds.
Brief description of the drawings
The schematic flow sheet for UE configuration SCell that Fig. 1 provides for the embodiment of the present invention;
Fig. 2 selects to need the schematic flow sheet of SCell adding for what the embodiment of the present invention provided for UE;
Fig. 3 is the schematic flow sheet of the step 203 in Fig. 2;
The structural representation of the base station equipment that Fig. 4 provides for the embodiment of the present invention.
Embodiment
The embodiment of the present invention proposes a kind of scheme for UE interpolation SCell that is applied to CA system.In the embodiment of the present invention, base station judges according to the current service situation of UE and actual transmissions demand, in the time that the current Serving cell of UE cannot meet the transfer of data demand of this UE, UE is carried out to SCell and adds.While adding SCell for UE, mainly consider data to be transmitted amount, the factor such as channel quality and the load condition of community of UE on each community of UE, and can once add a SCell or once add multiple SCell for UE according to the concrete transmission demand of UE.Adopt the embodiment of the present invention, can effectively utilize more flexibly system resource, for UE provides data service service more at a high speed, make user obtain better business experience.
Below in conjunction with accompanying drawing, the embodiment of the present invention is described in detail.
Referring to Fig. 1, add the schematic flow sheet of SCell for what the embodiment of the present invention provided for UE.Flow process shown in Fig. 1 can be carried out according to setting cycle, carries out following flow process in each cycle:
Step 101: base station obtains the data volume to be sent of UE;
Step 102: base station judges whether the data volume to be sent of this UE reaches the congested data volume thresholding of buffer memory, if reach, proceeds to step 103, otherwise wait for next cycle;
Step 103: count on current till the data volume of data to be sent reach continuously the number of times of the congested data volume thresholding of buffer memory;
Step 104: judge whether the number of times that statistics obtains reaches buffer memory times of congestion thresholding, if reach, proceeds to step 105, otherwise, wait for next cycle;
Step 105: base station is this UE configuration SCell.Base station can be this UE and adds one or more SCell.
Describe the specific implementation process of above-mentioned flow process below in detail.
Triggering base station is that the condition of UE interpolation SCell is: in the time that the situation of data stacking appears in the upstream or downstream transfer of data of UE not in time, need to trigger as this UE interpolation SCell.Base station can judge respectively uplink and downlink,, when the downlink data transmission of UE is not in time time, can trigger the operation of adding SCell into UE that is, when the transmitting uplink data of UE is not in time time, also can trigger the operation of adding SCell into UE.
Respectively for descending and up, be described as UE and add the judging process that SCell operates below.
For descending, base station can be known each RB(Radio Bearer, radio bearer accurately) buffer state information, therefore can add according to the buffer area data volume of each RB the judgement of SCell.
When concrete enforcement, because the traffic carrying capacity of each RB exists certain otherness, therefore can for each RB, the congested data volume thresholding of buffer memory be set respectively in advance, and set in advance buffer memory times of congestion thresholding.The base station cycle is obtained the RLC(Radio Link Control of each descending RB of UE, wireless link control) buffer area data volume, judge whether this data volume reaches the congested data volume thresholding of buffer memory that this RB is corresponding, and carry out following processing according to judged result:
If exist RLC buffer area data volume to reach the RB of the congested data volume thresholding of buffer memory in all descending RB of UE, compare by descending RB buffer area continuous congestion number of times+1 of this UE, and with buffer memory times of congestion thresholding:
The number of times of the descending RB buffer area continuous congestion of this UE of-Ruo reaches buffer memory times of congestion thresholding, triggers the operation of adding SCell for this UE, and by the descending RB buffer area continuous congestion number of times zero clearing of this UE;
The number of times of the descending RB buffer area continuous congestion of this UE of-Ruo does not reach buffer memory times of congestion thresholding, can not trigger the operation of adding SCell into this UE.
If the RLC buffer area data volume of all descending RB of UE does not all reach the congested data volume thresholding of buffer memory, by the descending RB buffer area continuous congestion number of times zero clearing of this UE.
For up, data send buffer area and are positioned at UE side, in order to allow base station dispatcher know UE buffer state, need UE to carry out BSR(Buffer Status Reports, reporting cached state), the mode that UE reports BSR to adopt grouping to report, with LCG(Logical Channel Group, logic channel group) for carrying out BSR, unit reports, and each LCG buffer area data volume (data in this buffer area are upstream data to be sent) that therefore base station can report according to UE is added the judgement of SCell.
When concrete enforcement, because the traffic carrying capacity of each LCG exists certain otherness, therefore can for each LCG, the congested data volume thresholding of buffer memory be set respectively in advance, and set in advance buffer memory times of congestion thresholding.Base station receives the up LCG buffer area data volume that UE reports, and in each judgement cycle, judges whether the buffer area data volume of each up LCG of UE reaches the congested data volume thresholding of buffer memory that this LCG is corresponding, and carry out following processing according to judged result:
If exist buffer area data volume to reach the up LCG of the congested data volume thresholding of buffer memory of this LCG in all up LCG of UE, compare by up LCG buffer area continuous congestion number of times+1 of this UE, and with buffer memory times of congestion thresholding:
The number of times of the up LCG buffer area continuous congestion of this UE of-Ruo reaches buffer memory times of congestion thresholding, triggers the operation of adding SCell for this UE, and by the up LCG buffer area continuous congestion number of times zero clearing of this UE;
The number of times of the up LCG buffer area continuous congestion of this UE of-Ruo does not reach buffer memory times of congestion thresholding, can not trigger the operation of adding SCell into this UE.
If the buffer area data volume of all up LCG of UE does not all reach the congested data volume thresholding of buffer memory, by the up LCG buffer area continuous congestion number of times zero clearing of this UE.
When base station is UE interpolation SCell, can be UE and add one or more SCell.The SCell that add for UE base station is as long as (Serving cell may only comprise PCell with configuring Serving cell to this UE, also may comprise PCell and SCell) belong to same base station, and also do not configure the community to GaiUE, preferably, base station can therefrom select suitable cell configuration to UE.
Taking the flow process shown in Fig. 2 as example, describe in detail in the preferred embodiments of the present invention below, base station is the process that UE selects to need the SCell adding.As shown in the figure, this flow process can comprise:
Step 201: according to the carrier wave configuration of system and the current Serving cell configuration of UE, determine that this adds the candidate SCell set of SCell operation.
Preferred concrete grammar is: in all available member carriers of system, remove as the PCC of current UE or the member carrier of SCC, remaining member carrier is this and adds the candidate CC that SCell operates, (the current Serving cell of these communities and UE belongs to same base station) candidate SCell set for this UE interpolation SCell operation as this using community corresponding these candidate CC.
Step 202: for the each candidate SCell in candidate SCell set, obtain channel quality and the information on load of this candidate SCell.
The channel quality of candidate SCell can be characterized by the equivalent signal-to-noise ratio on this candidate SCell by UE.Wherein, channel information for UE on candidate SCell, the channel information amount that can directly get is divided into RSRP(Reference Signal Receiving Power, Reference Signal Received Power) and RSRQ(Reference Signal Receiving Quality, Reference Signal Received Quality) two kinds, therefore there is accordingly the mode of the equivalent signal-to-noise ratio of following two kinds of definite UE on candidate SCell:
Mode one: if can get the RSRQ of UE on candidate SCell, this RSRQ can be equivalent to the equivalent signal-to-noise ratio of this UE on this candidate SCell;
Mode two: if can get the RSRP of UE on candidate SCell, further calculate the equivalent signal-to-noise ratio of UE on candidate SCell according to RSRP.The computing formula of the equivalent signal-to-noise ratio of UE in cell i is:
Wherein, SINR
ifor the SINR(Signal to Interference plus Noise Ratio of cell i, Signal to Interference plus Noise Ratio), RSRP
irepresent the RSRP of cell i, RSRP
jthe RSRP that represents community j, j represents and the numbering of cell i with other community of frequency.
For the information on load on candidate SCell, can obtain from scheduler module the resources occupation rate information of candidate SCell, this resources occupation rate can be to carry out smoothly based on regular hour window, or adopts the mode of forgetting factor filtering to add up.
Step 203: according to the channel quality of each candidate SCell and load level, from candidate SCell set, select one or more cell configuration to UE the SCell as this UE.
A kind of specific implementation process of the step 203 in above-mentioned flow process can as shown in Figure 3, comprise:
Step 2031: for each candidate SCell, calculate the surplus resources number on this community according to the resources occupation rate information of this community, according to the surplus resources number on this community and in conjunction with the equivalent signal-to-noise ratio on UEGai community, estimate the Deta bearer ability of these surplus resources on this community.
Step 2032: add each candidate CC of SCell operation for this, if candidate SCell corresponding to each candidate CC only has 1 (such as omni cell scene), in this step without processing; If the candidate SCell number that each candidate CC is corresponding is all greater than 1 (such as three sector scenes), for each candidate CC, the candidate SCell that selects the logarithmic data amount maximum that a surplus resources can carry in multiple candidate SCell corresponding to this CC as this CC on corresponding candidate SCell, from candidate SCell set, delete all the other candidate SCell that this candidate CC is corresponding.By this step, make the candidate SCell different CC of correspondence respectively remaining in candidate SCell set.
Step 2033: for the each candidate SCell in candidate SCell set, the descending order sequence of data volume that can carry according to surplus resources, the ordered queue of formation candidate SCell.
Step 2034: take out one by one community from the ordered queue of candidate SCell, when the data volume sum that can carry of surplus resources on these communities of taking out, the data to be transmitted amount current with UE is (as the RLC buffer area data volume of all descending RB, or the buffer area data volume of all up LCG) ratio while being greater than default thresholding, the one or more community of taking out is configured to this UE as the SCell of this UE.
A kind of handling process of above-mentioned steps 2034 can comprise:
Step a, from the ordered queue of candidate SCell, take out Yi Ge community (data volume that can carry according to surplus resources descending take out in turn community);
Step b, calculate the data volume sum that the surplus resources on all communities of taking out can carry, with the ratio of the data to be transmitted amount of described object UE;
Step c, if this ratio is greater than default thresholding, proceeds to steps d, otherwise proceeds to step a;
Steps d, all candidate SCell that take out are configured to the SCell of UE.
Below by a concrete application scenarios, be illustrated as the specific implementation process of UE interpolation SCell.
In this application scenarios, CA system configuration 5 descending carriers, be designated as respectively CC1, CC2, CC3, CC4 and CC5.Network topology is omni cell scene, the corresponding Yi Ge of each CC community.Certain UE has 1 descending RB, and this UE is current 2 Serving cells, that is: 1 PCell and 1 SCell.Wherein, the corresponding CC1 of PCell, is designated as Cell
1; The corresponding CC2 of SCell, is designated as Cell
2.The threshold value setting in advance comprises: the buffer memory congestion threshold of this descending RB is 3000 bits, and buffer memory times of congestion thresholding is that the ratio threshold that 8, SCell can carry data volume and UE data to be transmitted amount is 0.2.
Be whether while arriving in cycle that UE adds SCell in judgement, carry out following handling process:
Step 1: adjudicate the trigger condition of adding SCell for this UE base station.
Concrete, the RLC buffer area data volume that base station gets the descending RB of this UE is 8000 bits, because the RLC buffer area data volume of the descending RB of current this UE has exceeded the buffer memory congestion threshold (3000 bit) of this RB, therefore by descending RB buffer area continuous congestion number of times+1 of this UE.Before supposing, the descending RB buffer area continuous congestion number of times of this UE is 7, the descending RB buffer area continuous congestion number of times of this UE after upgrading is 8, reach buffer memory times of congestion thresholding, therefore triggered the interpolation of carrying out SCell for this UE, proceeded to following steps and continue to process.
Step 2: the candidate SCell set that this adds operation, according to the carrier wave configuration of system and the current Serving cell configuration of this UE, is determined in base station.
Concrete, remove as the CC1 of the PCC of this UE with as the CC2 of the member carrier of the SCC of this UE in 5 all available downlink member carriers of system base station, CC3, CC4 and CC5 are this candidate CC, and using community corresponding these candidate CC, (the current Serving cell of these communities and UE belongs to same base station) is as this candidate SCell.Because network topology is omni cell scene, therefore the corresponding candidate SCell of each candidate CC, is designated as respectively Cell by CC3, CC4 and candidate SCell corresponding to CC5
3, Cell
4and Cell
5.
Step 3: for each candidate SCell, obtain the equivalent signal-to-noise ratio of UE on each candidate SCell and the information on load of each candidate SCell.
Suppose now can obtain the RSRQ of UE on each candidate SCell, the equivalent signal-to-noise ratio on corresponding candidate SCell using this RSRQ as UE.Information on load on each candidate SCell is the resources occupation rate of obtaining Ge community from scheduler module.
Step 4: for each candidate SCell, calculate the surplus resources number on this candidate SCell according to the resources occupation rate information of candidate SCell, in conjunction with the equivalent signal-to-noise ratio on UEGai community, estimate the Deta bearer ability of these surplus resources on this candidate SCell according to the surplus resources number on this candidate SCell.Suppose that estimation result is: Cell
3on the data volume that can carry of surplus resources be 1000 bits, Cell
4on the data volume that can carry of surplus resources be 500 bits; Cell
5on the data volume that can carry of surplus resources be 800 bits.
Step 5: by candidate cell Cell
3, Cell
4and Cell
5the descending order sequence of data volume that can carry according to its surplus resources, the ordered queue of formation candidate SCell, the queue after sequence is Cell
3>Cell
5>Cell
4;
Step 6:, from candidate SCell ordered queue, take out first community Cell
3, calculation plot Cell
3on the data volume that can carry of surplus resources and the ratio of the descending RB data to be transmitted amount of this UE be 1000/8000=0.125.Due to 0.125<0.2, show community Cell
3on the data volume that can carry of surplus resources and the ratio of the descending RB data to be transmitted amount of this UE do not reach predefine thresholding, now continue to take out next community Cell from candidate SCell ordered queue
5, calculation plot Cell
3and Cell
5on the data volume sum that can carry of surplus resources and the ratio of the descending RB data to be transmitted amount of this UE be (1000+800)/8000=0.225.Due to 0.225>0.2, show community Cell
3and Cell
5on the data volume sum that can carry of surplus resources and the ratio of the descending RB data to be transmitted amount of this UE reached predefine thresholding, therefore, by these 2 community (that is: Cell that take out
3and Cell
5) configure to this UE as the SCell of this UE.
Based on identical technical conceive, the embodiment of the present invention also provides a kind of base station equipment.
Referring to Fig. 4, the structural representation of the base station equipment providing for the embodiment of the present invention.This base station equipment can comprise: acquisition module 401, judging module 402, statistical module 403 and configuration module 404, wherein:
Acquisition module 401, for obtaining the data volume to be sent of target terminal;
Judging module 402, for judging according to the cycle of setting whether the data volume to be sent of the described target terminal that acquisition module 401 gets reaches the congested data volume thresholding of buffer memory, and in the situation that being judged as YES, instruction statistical module 403 count on current till the data volume of data to be sent be greater than continuously the number of times of the congested data volume thresholding of buffer memory, and the number of times counting at statistical module 403 reaches buffer memory times of congestion thresholding, instruction configuration module 404 be that described target terminal configures auxiliary serving cell;
Statistical module 403, for count on current till the data volume of data to be sent reach continuously the number of times of the congested data volume thresholding of buffer memory;
Configuration module 404, is used to described target terminal configuration auxiliary serving cell.
Concrete, acquisition module 401 can obtain the RLC buffer area data volume of each descending RB of target terminal; Judging module 402 specifically for: if judge, the RLC buffer area data volume of at least one descending RB of target terminal reaches the congested data volume thresholding of buffer memory that this RB is corresponding, upgrade the RLC buffer area data volume continuous congestion number of times of the descending RB of described target terminal, and indicate statistical module 403 count on current till the RLC buffer area data volume continuous congestion number of times of the descending RB of described target terminal.
Concrete, acquisition module 401 can obtain the buffer area data volume of each up LCG that target terminal reports; Judging module 402 specifically for: if judge, the buffer area data volume of at least one up LCG of target terminal reaches the congested data volume thresholding of buffer memory that this LCG is corresponding, upgrade the up LCG buffer area of described target terminal data volume continuous congestion number of times, and indicate described module module count on current till the up LCG buffer area of described target terminal data volume continuous congestion number of times.
Concrete, configuration module 404 specifically for: configure according to system carrier configuration and the current Serving cell of described target terminal, for described target terminal is determined the set of candidate's auxiliary serving cell; Obtain channel quality information and the information on load of each candidate's auxiliary serving cell; According to the channel quality information of each candidate's auxiliary serving cell and information on load, from each candidate's auxiliary serving cell, select at least one community, and the auxiliary serving cell that is described target terminal by the cell configuration of selecting.
Concrete, configuration module 404 specifically for: in all available member carriers of system, remove after the member carrier for described target terminal configuration, by corresponding remaining member carrier and belong to the community of same base station with the current Serving cell of described target terminal, be defined as the member in candidate's auxiliary serving cell set of described target terminal.
Wherein, the channel quality information of candidate's auxiliary serving cell is: the Reference Signal Received Quality RSRQ of described target terminal in candidate's auxiliary serving cell; Or the channel quality information of candidate's auxiliary serving cell calculates according to following formula:
Wherein, SINR
ifor the Signal to Interference plus Noise Ratio of cell i, RSRP
irepresent the Reference Signal Received Power RSRP of cell i, RSRP
jthe RSRP that represents community j, j represents and the numbering of cell i with other community of frequency.
Concrete, configuration module 404, according to the channel quality information of each candidate's auxiliary serving cell and information on load, is selected in the process of at least one community from each candidate's auxiliary serving cell, specifically for carrying out following flow process:
Step a, for the each community in the set of candidate's auxiliary serving cell, calculate the surplus resources number on this community according to the information on load of this community, according to the surplus resources number on this community and the channel quality information of this community, determine the Deta bearer ability of the surplus resources on this community;
Step c, the descending order of data volume that can carry according to surplus resources are taken out Yi Ge community from the set of candidate's auxiliary serving cell;
Steps d, calculate the data volume sum that the surplus resources on all communities of taking out can carry, the ratio with the data to be transmitted amount of described target terminal, if this ratio is greater than default thresholding, proceeds to step e, otherwise proceeds to step c;
Step e, all candidate's auxiliary serving cells of taking out are configured to the auxiliary serving cell of described target terminal.
Further, between described step a and step c, also comprise: if step b has the corresponding same member carrier of at least 2 candidate's auxiliary serving cells, the community of the data volume maximum that described in selecting, at least 2 candidate's auxiliary serving cells, surplus resources can carry, and the community of selecting is retained in the set of described candidate's auxiliary serving cell, all the other communities in described at least 2 candidate's auxiliary serving cells are deleted from the set of described candidate's auxiliary serving cell.
In sum, the embodiment of the present invention is in the process for UE interpolation SCell, current service situation and the actual transmissions demand of UE are considered, in the time that the Serving cell of UE cannot meet the transfer of data demand of this UE, give this UE as SCell according to the one or more suitable cell configuration of transmittability selection of resource on each community, thereby can effectively utilize more flexibly system resource, for UE provides data service service more at a high speed, make user obtain better business experience according to the actual transmissions demand of UE.
Through the above description of the embodiments, those skilled in the art can be well understood to the mode that the present invention can add essential general hardware platform by software and realize, and can certainly pass through hardware, but in a lot of situation, the former is better execution mode.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in a storage medium, comprise that some instructions (can be mobile phones in order to make a station terminal equipment, personal computer, server, or the network equipment etc.) carry out the method described in each embodiment of the present invention.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be looked protection scope of the present invention.
Claims (16)
1. an auxiliary serving cell collocation method, is characterized in that, the cycle execution according to setting:
Base station obtains the data volume to be sent of target terminal;
Described base station judges whether the data volume to be sent of described target terminal reaches the congested data volume thresholding of buffer memory, and in the situation that being judged as YES, count on current till the data volume of data to be sent reach continuously the number of times of the congested data volume thresholding of buffer memory;
If the number of times that statistics obtains reaches buffer memory times of congestion thresholding, described base station is described target terminal configuration auxiliary serving cell.
2. the method for claim 1, is characterized in that, described base station obtains the data volume to be sent of target terminal, specifically comprises: base station obtains the wireless link control RLC buffer area data volume of the each descending radio bearer RB of target terminal;
Described base station judges whether the data volume to be sent of described target terminal reaches the congested data volume thresholding of buffer memory, and in the situation that being judged as YES, count on current till the data volume of data to be sent reach continuously the number of times of the congested data volume thresholding of buffer memory, specifically comprise:
If described base station judges the RLC buffer area data volume of at least one descending RB of target terminal and reaches the congested data volume thresholding of buffer memory that this RB is corresponding, upgrade the RLC buffer area data volume continuous congestion number of times of the descending RB of described target terminal, and count on current till the RLC buffer area data volume continuous congestion number of times of the descending RB of described target terminal.
3. the method for claim 1, is characterized in that, described base station obtains the data volume to be sent of target terminal, specifically comprises: base station obtains the buffer area data volume of the each up logic channel group LCG that target terminal reports;
Described base station judges whether the data volume to be sent of described target terminal reaches the congested data volume thresholding of buffer memory, and in the situation that being judged as YES, count on current till the data volume of data to be sent reach continuously the number of times of the congested data volume thresholding of buffer memory, specifically comprise:
If described base station judges the buffer area data volume of at least one up LCG of target terminal and reaches the congested data volume thresholding of buffer memory that this LCG is corresponding, upgrade the up LCG buffer area of described target terminal data volume continuous congestion number of times, and count on current till the up LCG buffer area of described target terminal data volume continuous congestion number of times.
4. the method for claim 1, is characterized in that, described base station is that described target terminal adds auxiliary community, specifically comprises:
According to system carrier configuration and the current Serving cell configuration of described target terminal, for described target terminal is determined the set of candidate's auxiliary serving cell;
Obtain channel quality information and the information on load of each candidate's auxiliary serving cell;
According to the channel quality information of each candidate's auxiliary serving cell and information on load, from each candidate's auxiliary serving cell, select at least one community, and the auxiliary serving cell that is described target terminal by the cell configuration of selecting.
5. method as claimed in claim 4, is characterized in that, according to system carrier configuration and the current Serving cell configuration of described target terminal, determines the auxiliary set of cells of candidate for described target terminal, specifically comprises:
In all available member carriers of system, remove after the member carrier for described target terminal configuration, by corresponding remaining member carrier and belong to the community of same base station with the current Serving cell of described target terminal, be defined as the member in candidate's auxiliary serving cell set of described target terminal.
6. method as claimed in claim 4, is characterized in that, the channel quality information of candidate's auxiliary serving cell is: the Reference Signal Received Quality RSRQ of described target terminal in candidate's auxiliary serving cell; Or
The channel quality information of candidate's auxiliary serving cell calculates according to following formula:
Wherein, SINR
ifor the Signal to Interference plus Noise Ratio of cell i, RSRP
irepresent the Reference Signal Received Power RSRP of cell i, RSRP
jthe RSRP that represents community j, j represents and the numbering of cell i with other community of frequency.
7. method as claimed in claim 4, is characterized in that, according to the channel quality information of each candidate's auxiliary serving cell and information on load, from each candidate's auxiliary serving cell, selects at least one community, specifically comprises:
Step a, for the each community in the set of candidate's auxiliary serving cell, calculate the surplus resources number on this community according to the information on load of this community, according to the surplus resources number on this community and the channel quality information of this community, determine the Deta bearer ability of the surplus resources on this community;
Step c, the descending order of data volume that can carry according to surplus resources are taken out Yi Ge community from the set of candidate's auxiliary serving cell;
Steps d, calculate the data volume sum that the surplus resources on all communities of taking out can carry, the ratio with the data to be transmitted amount of described target terminal, if this ratio is greater than default thresholding, proceeds to step e, otherwise proceeds to step c;
Step e, all candidate's auxiliary serving cells of taking out are configured to the auxiliary serving cell of described target terminal.
8. method as claimed in claim 7, is characterized in that, between described step a and step c, also comprises:
If step b has the corresponding same member carrier of at least 2 candidate's auxiliary serving cells, the community of the data volume maximum that described in selecting, at least 2 candidate's auxiliary serving cells, surplus resources can carry, and the community of selecting is retained in the set of described candidate's auxiliary serving cell, all the other communities in described at least 2 candidate's auxiliary serving cells are deleted from the set of described candidate's auxiliary serving cell.
9. a base station equipment, is characterized in that, comprising: acquisition module, judging module, statistical module and configuration module, wherein:
Described acquisition module, for obtaining the data volume to be sent of target terminal;
Described judging module, for judging according to the cycle of setting whether the data volume to be sent of described target terminal reaches the congested data volume thresholding of buffer memory, and in the situation that being judged as YES, indicate described statistical module counts till the data volume of current data to be sent is greater than the number of times of the congested data volume thresholding of buffer memory continuously, and the number of times going out in described statistical module counts reaches buffer memory times of congestion thresholding, indicating described configuration module is described target terminal configuration auxiliary serving cell;
Statistical module, for count on current till the data volume of data to be sent reach continuously the number of times of the congested data volume thresholding of buffer memory;
Configuration module, is used to described target terminal configuration auxiliary serving cell.
10. base station equipment as claimed in claim 9, is characterized in that, described acquisition module specifically for, obtain the wireless link control RLC buffer area data volume of the each descending radio bearer RB of target terminal;
Described judging module specifically for, if judge, the RLC buffer area data volume of at least one descending RB of target terminal reaches the congested data volume thresholding of buffer memory that this RB is corresponding, upgrade the RLC buffer area data volume continuous congestion number of times of the descending RB of described target terminal, and indicate described statistical module counts till the RLC buffer area data volume continuous congestion number of times of the descending RB of current described target terminal.
11. base station equipments as claimed in claim 9, is characterized in that, described acquisition module specifically for, obtain the buffer area data volume of each up LCG that target terminal reports;
Described judging module specifically for, if judge, the buffer area data volume of at least one up logic channel group LCG of target terminal reaches the congested data volume thresholding of buffer memory that this LCG is corresponding, upgrade the up LCG buffer area of described target terminal data volume continuous congestion number of times, and indicate described module module count on current till the up LCG buffer area of described target terminal data volume continuous congestion number of times.
12. base station equipments as claimed in claim 9, is characterized in that, described configuration module specifically for:
According to system carrier configuration and the current Serving cell configuration of described target terminal, for described target terminal is determined the set of candidate's auxiliary serving cell;
Obtain channel quality information and the information on load of each candidate's auxiliary serving cell;
According to the channel quality information of each candidate's auxiliary serving cell and information on load, from each candidate's auxiliary serving cell, select at least one community, and the auxiliary serving cell that is described target terminal by the cell configuration of selecting.
13. base station equipments as claimed in claim 12, it is characterized in that, described configuration module specifically for, in all available member carriers of system, remove after the member carrier for described target terminal configuration, by corresponding remaining member carrier and belong to the community of same base station with the current Serving cell of described target terminal, be defined as the member in candidate's auxiliary serving cell set of described target terminal.
14. base station equipments as claimed in claim 12, is characterized in that, the channel quality information of candidate's auxiliary serving cell is: the Reference Signal Received Quality RSRQ of described target terminal in candidate's auxiliary serving cell; Or
The channel quality information of candidate's auxiliary serving cell calculates according to following formula:
Wherein, SINR
ifor the Signal to Interference plus Noise Ratio of cell i, RSRP
irepresent the Reference Signal Received Power RSRP of cell i, RSRP
jthe RSRP that represents community j, j represents and the numbering of cell i with other community of frequency.
15. base station equipments as claimed in claim 12, it is characterized in that, described configuration module, according to the channel quality information of each candidate's auxiliary serving cell and information on load, is selected in the process of at least one community from each candidate's auxiliary serving cell, specifically for carrying out following flow process:
Step a, for the each community in the set of candidate's auxiliary serving cell, calculate the surplus resources number on this community according to the information on load of this community, according to the surplus resources number on this community and the channel quality information of this community, determine the Deta bearer ability of the surplus resources on this community;
Step c, the descending order of data volume that can carry according to surplus resources are taken out Yi Ge community from the set of candidate's auxiliary serving cell;
Steps d, calculate the data volume sum that the surplus resources on all communities of taking out can carry, the ratio with the data to be transmitted amount of described target terminal, if this ratio is greater than default thresholding, proceeds to step e, otherwise proceeds to step c;
Step e, all candidate's auxiliary serving cells of taking out are configured to the auxiliary serving cell of described target terminal.
Establish 16. base stations as claimed in claim 15, it is characterized in that, between described step a and step c, also comprises:
If step b has the corresponding same member carrier of at least 2 candidate's auxiliary serving cells, the community of the data volume maximum that described in selecting, at least 2 candidate's auxiliary serving cells, surplus resources can carry, and the community of selecting is retained in the set of described candidate's auxiliary serving cell, all the other communities in described at least 2 candidate's auxiliary serving cells are deleted from the set of described candidate's auxiliary serving cell.
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