CN103945462B - A kind of auxiliary serving cell configuration method and equipment - Google Patents
A kind of auxiliary serving cell configuration method and equipment Download PDFInfo
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- CN103945462B CN103945462B CN201310017892.1A CN201310017892A CN103945462B CN 103945462 B CN103945462 B CN 103945462B CN 201310017892 A CN201310017892 A CN 201310017892A CN 103945462 B CN103945462 B CN 103945462B
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Abstract
The invention discloses a kind of auxiliary serving cell configuration method and equipment.This method comprises: base station obtains the data volume to be sent of target terminal；The base station judges whether the data volume to be sent of the target terminal reaches cache congestion amount data threshold, and in the case where being judged as YES, and the data volume for counting data to be sent so far continuously reaches the number of cache congestion amount data threshold；If counting obtained number reaches cache congestion number thresholding, the base station is that the target terminal configures auxiliary serving cell.Use the present invention that can configure auxiliary serving cell according to the transmission demand of terminal for terminal.
Description
Technical field
The present invention relates to wireless communication field more particularly to a kind of auxiliary serving cell configuration methods and equipment.
Background technique
LTE-A(Long Term Evolution Advanced, the long term evolution of enhancing) system introduces CA
(Carrier Aggregation, carrier wave polymerization) technology, using LTE member carrier bandwidth as basic unit, by by multiple small bands
The mode that wide member carrier condenses together obtains bigger transmission bandwidth.Wherein, each carrier wave for participating in polymerization is known as CC
(Component Carrier, member carrier).
In CA system, UE(User Equipment, user terminal) it can exist simultaneously multiple serving cells, UE can be with
Send and receive data simultaneously on this multiple serving cell.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 LTE
The property of serving cell in system, and SCell only undertakes number and passes function merely as additional resource.Correspondingly, PCell pairs
The member carrier answered is known as PCC(Primary Component Carrier, main member carrier), the corresponding member carrier of SCell
Referred to as SCC(Secondary Component Carrier, secondary member carrier).
PCell/PCC is for the angle of UE, and different UE can be using different CC as PCC.For one
For UE, PCell is certainly existed, and only one PCell of each UE, and SCell is can to pass through RRC(Radio
Resource Control, wireless heterogeneous networks) signaling is static or is semi-statically configured, configuration the adding including SCell of SCell
Add, the modification of the deletion of SCell and SCell.PCell includes DL CC(, that is, downlink CC) and UL CC(, that is, uplink CC), SCell can
There was only DL CC, but cannot there was only UL CC.
At present for having the UE of CA ability, multiple SCell typically statically are configured for it.
The actual transmissions demand of UE is not accounted for for the method for UE static configuration SCell at present.In lte-a system,
The type of business is varied, and for different business, not only traffic needs are different, but also it is special to show different bursts
Property.Therefore, for different UE, transmission demand is different.For the same UE, with the continuous variation of the UE business,
It also has different transmission demands in different time sections.Usual base station can configure on frequency point where each serving cell for UE
RRC measurement, multiple SCell is configured always if it is UE, when UE transmission demand is smaller, UE does not have data on SCell at this time
Transmission or data transmission efficiency are extremely low, but UE is bound in this way there is still a need for measuring to report on the corresponding frequency point of these SCell
Unnecessary measurement can be brought and report expense.
Summary of the invention
The embodiment of the invention provides a kind of auxiliary serving cell configuration method and equipment, to the transmission demand according to terminal
Auxiliary serving cell is configured for terminal.
In auxiliary serving cell configuration method provided in an embodiment of the present invention, executed according to the period of setting:
The data volume to be sent of base station acquisition target terminal；
The base station judges whether the data volume to be sent of the target terminal reaches cache congestion amount data threshold, and
In the case where being judged as YES, the data volume for counting data to be sent so far continuously reaches cache congestion amount data threshold
Number；
If counting obtained number reaches cache congestion number thresholding, the base station is that the target terminal configures auxiliary clothes
Business cell.
Base station equipment provided in an embodiment of the present invention, comprising: module, judging module, statistical module and configuration module are obtained,
Wherein:
The acquisition module, for obtaining the data volume to be sent of target terminal；
The judging module judges whether the data volume to be sent of the target terminal reaches for the period according to setting
Cache congestion amount data threshold, and in the case where being judged as YES, indicate that the statistical module counts are pending so far
The number for sending the data volume of data to be continuously greater than cache congestion amount data threshold, and reached in the number that the statistical module counts go out
In the case where cache congestion number thresholding, indicate that the configuration module is that the target terminal configures auxiliary serving cell；
Statistical module, the data volume for counting data to be sent so far continuously reach cache congestion data volume door
The number of limit；
Configuration module, for configuring auxiliary serving cell for the target terminal.
In the above embodiment of the present invention, base station is judged according to the current data volume to be sent of terminal, works as terminal
SCell addition is executed to terminal when current serving cell is unable to satisfy the data transfer demands of the terminal.
Detailed description of the invention
The flow diagram that it is UE configuration SCell that Fig. 1, which is provided in an embodiment of the present invention,；
It is that UE selects to need the flow diagram of SCell to be added that Fig. 2, which is provided in an embodiment of the present invention,；
Fig. 3 is the flow diagram of the step 203 in Fig. 2；
Fig. 4 is the structural schematic diagram of base station equipment provided in an embodiment of the present invention.
Specific embodiment
The embodiment of the present invention proposes a kind of scheme for being UE addition SCell applied to CA system.In the embodiment of the present invention,
Base station is judged according to the current service situation of UE and actual transmissions demand, when the current serving cell of UE is unable to satisfy this
SCell addition is executed to UE when the data transfer demands of UE.For UE add SCell when mainly consider UE data to be transmitted amount,
The factors such as the load condition of channel quality and cell of the UE in each cell, and can be UE according to the specific transmission demand of UE
It once adds a SCell or once adds multiple SCell.Using the embodiment of the present invention, more flexible can effectively utilize
System resource provides the data service service of higher speed for UE, and user is made to obtain better services experience.
The embodiment of the present invention is described in detail with reference to the accompanying drawing.
Referring to Fig. 1, for the flow diagram provided in an embodiment of the present invention for being UE addition SCell.Process shown in FIG. 1 can
It is executed according to the setting period, i.e., executes following below scheme in each period:
Step 101: the data volume to be sent of base station acquisition UE；
Step 102: base station judges whether the data volume to be sent of the UE reaches cache congestion amount data threshold, if reaching,
It is then transferred to step 103, otherwise waits for next cycle；
Step 103: the data volume for counting data to be sent so far continuously reaches cache congestion amount data threshold
Number；
Step 104: judging whether the obtained number of statistics reaches cache congestion number thresholding and be transferred to step if reaching
105, otherwise, wait next cycle；
Step 105: base station is that the UE configures SCell.Base station can add one or more SCell for the UE.
The specific implementation process of above-mentioned process is described below in detail.
Triggering base station is that the condition of UE addition SCell is: when the upstream or downstream data transmission of UE number occurs not in time
When according to the case where accumulation, needing to trigger is that the UE adds SCell.Base station can judge respectively uplink and downlink, that is, work as UE
Downlink data transmission not in time when, can trigger for UE add SCell operation, when UE transmitting uplink data not in time
When, it also can trigger the operation that SCell is added for UE.
It is directed to downlink and uplink separately below, is described as the judging process of UE addition SCell operation.
For downlink, base station can accurately know each RB(Radio Bearer, radio bearer) buffer state
Information, therefore the judgement of SCell can be added according to the buffer area data volume of each RB.
When it is implemented, can be respectively set in advance for each RB due to the having a certain difference property of portfolio of each RB
Cache congestion amount data threshold, and preset cache congestion number thresholding.The base station period obtains the RLC of each downlink RB of UE
(Radio Link Control, wireless spread-spectrum technology) buffer area data volume, it is corresponding to judge whether the data volume reaches the RB
Cache congestion amount data threshold, and carried out the following processing according to judging result:
If there are the RB that RLC buffer area data volume reaches cache congestion amount data threshold in all downlink RB of UE, will
The downlink RB buffer area continuous congestion number+1 of the UE, and be compared with cache congestion number thresholding:
If the number of the downlink RB buffer area continuous congestion of the UE reaches cache congestion number thresholding, triggering is the UE
The operation of SCell is added, and the downlink RB buffer area continuous congestion number of the UE is reset；
If the number of the downlink RB buffer area continuous congestion of the UE is not up to cache congestion number thresholding, will not trigger
The operation of SCell is added for the UE.
If the RLC buffer area data volume of all downlink RB of UE is not up to cache congestion amount data threshold, by the UE
Downlink RB buffer area continuous congestion number reset.
For uplink, data transmission buffer area is located at the side UE and needs to allow base station dispatcher to know UE buffer state
UE carries out BSR(Buffer Status Reports, reporting cached state), UE reports BSR in such a way that grouping reports, i.e.,
With LCG(Logical Channel Group, logic channel group) it is that unit progress BSR is reported, therefore base station can be according on UE
Each LCG buffer area data volume (data in the buffer area are upstream data to be sent) of report is added the judgement of SCell.
When it is implemented, can be set respectively for each LCG in advance due to the having a certain difference property of portfolio of each LCG
Cache congestion amount data threshold is set, and presets cache congestion number thresholding.Base station receives the uplink LCG buffer area that UE is reported
Data volume, and in each judgement period, it is corresponding to judge whether the buffer area data volume of each uplink LCG of UE reaches the LCG
Cache congestion amount data threshold, and carried out the following processing according to judging result:
If reaching the upper of the cache congestion amount data threshold of the LCG in all uplink LCG of UE there are buffer area data volume
Row LCG then by the uplink LCG buffer area continuous congestion number+1 of the UE, and is compared with cache congestion number thresholding:
If the number of the uplink LCG buffer area continuous congestion of the UE reaches cache congestion number thresholding, triggering is the UE
The operation of SCell is added, and the uplink LCG buffer area continuous congestion number of the UE is reset；
If the number of the uplink LCG buffer area continuous congestion of the UE is not up to cache congestion number thresholding, will not trigger
The operation of SCell is added for the UE.
If the buffer area data volume of all uplink LCG of UE is not up to cache congestion amount data threshold, by the UE's
Uplink LCG buffer area continuous congestion number is reset.
When base station is that UE adds SCell, one or more SCell can be added for UE.Base station is SCell added by UE
If with the configured serving cell to the UE (serving cell may only include PCell, it is also possible to including PCell and SCell)
Belong to same base station, and be also not configured to the cell of the UE, it is preferred that base station can therefrom select suitable cell to configure
To UE.
Below by taking process shown in Fig. 2 as an example, in detailed description of the present invention preferred embodiment, base station is that UE selection needs
The process of the SCell of addition.As shown, the process can include:
Step 201: according to the configuration of the carrier wave of system and UE, current serving cell is configured, and determines this addition SCell
The candidate SCell of operation gathers.
Preferred specific method is: removed in all available member carriers of system as the PCC of current UE or
The member carrier of SCC, remaining member carrier is the candidate CC of this addition SCell operation, these candidate CC are corresponding
Cell (these cells and UE current serving cell belong to the same base station) adds SCell operation as this for the UE
Candidate SCell set.
Step 202: for each of candidate SCell set candidate SCell, obtaining the channel quality of the candidate SCell
And information on load.
The channel quality of candidate SCell can be characterized by equivalent signal-to-noise ratio of the UE on the candidate SCell.Wherein, for
Channel information of the UE on candidate SCell, the channel information amount that can be directly obtained are divided into RSRP(Reference Signal
Receiving Power, Reference Signal Received Power) and RSRQ(Reference Signal Receiving Quality, ginseng
Examine signal receiving quality) two kinds, therefore the side for thering is following two to determine equivalent signal-to-noise ratio of the UE on candidate SCell accordingly
Formula:
Mode one: if the available RSRQ to UE on candidate SCell, which can be equivalent to the UE and existed
Equivalent signal-to-noise ratio on the candidate SCell；
Mode two: if the available RSRP to UE on candidate SCell, UE is further calculated according to RSRP and is being waited
Select the equivalent signal-to-noise ratio on SCell.The calculation formula of equivalent signal-to-noise ratio of the UE in cell i are as follows:
Wherein, SINRiFor the SINR(Signal to Interference plus Noise Ratio of cell i, signal
With interference plus noise ratio), RSRPiIndicate the RSRP, RSRP of cell ijIndicate the RSRP of cell j, j is indicated and cell i is the same as frequency point
The number of other cells.
For the information on load on candidate SCell, the resources occupation rate letter of candidate SCell can be obtained from scheduler module
Breath, which can be is carried out smoothly based on regular hour window, or is carried out by the way of forgetting factor filtering
Statistics.
Step 203: selecting one from candidate SCell set according to the channel quality and load level of each candidate SCell
A or multiple cells are allocated to SCell of the UE as the UE.
A kind of specific implementation process of step 203 in above-mentioned process can be as shown in Figure 3, comprising:
Step 2031: for each candidate SCell, being calculated according to the resources occupation rate information of the cell surplus in the cell
Remaining number of resources according to the surplus resources number in the cell and combines equivalent signal-to-noise ratio of the UE in the cell, estimates that this is small
The data carrying capabilities of these surplus resources in area.
Step 2032: for each candidate CC of this addition SCell operation, if the corresponding candidate of each candidate CC
SCell only has 1 (such as omni cell scene), then in this step without processing；If the corresponding candidate of each candidate CC
SCell number is all larger than 1 (such as three sector scenes), then for each candidate CC, in the corresponding multiple candidate SCell of the CC
The middle maximum candidate SCell of number data volume for selecting a surplus resources that can carry is as candidate SCell corresponding on the CC, i.e.,
Remaining corresponding candidate SCell of the candidate CC is deleted from candidate SCell set.By the step, make in candidate SCell set
The candidate SCell remained respectively corresponds different CC.
Step 2033: for each candidate SCell in candidate SCell set, the data volume that can be carried according to surplus resources
Descending sequence sequence, forms the ordered queue of candidate SCell.
Step 2034: taking out cell one by one from the ordered queue of candidate SCell, the residue in these cells of taking-up
The sum of the data volume that resource can carry, with UE current data to be transmitted amount (the RLC buffer area data volume of such as all downlink RB,
Or the buffer area data volume of all uplink LCG) ratio when being greater than preset thresholding, the one or more cell of taking-up is made
The UE is allocated to for the SCell of the UE.
A kind of process flow of above-mentioned steps 2034 can include:
Step a, a cell (number that can carry according to surplus resources is taken out from the ordered queue of candidate SCell
Cell is taken out according to descending sequence is measured)；
Step b, the sum of the data volume that the surplus resources in all cells taken out can carry is calculated, with the target UE
Data to be transmitted amount ratio；
Step c is transferred to step d, is otherwise transferred to step a if the ratio is greater than pre-determined threshold；
Step d, all candidate SCell of taking-up are configured to the SCell of UE.
Below by a concrete application scene, illustrate the specific implementation process that SCell is added for UE.
In the application scenarios, 5 descending carriers of CA system configuration are denoted as CC1, CC2, CC3, CC4 and CC5 respectively.
Network topology is omni cell scene, the corresponding cell of each CC.Some UE has 1 downlink RB, and the UE currently has 2 clothes
Business cell, it may be assumed that 1 PCell and 1 SCell.Wherein, PCell corresponds to CC1, is denoted as Cell1；SCell corresponds to CC2, is denoted as
Cell2.Pre-set threshold value includes: that the cache congestion thresholding of downlink RB is 3000 bits, cache congestion number thresholding
The ratio threshold that data volume and UE data to be transmitted amount can be carried for 8, SCell is 0.2.
When deciding whether that the period for adding SCell for UE reaches, following process flow is executed:
Step 1: base station makes decisions the trigger condition for adding SCell for the UE.
Specifically, the RLC buffer area data volume that base station gets the downlink RB of the UE is 8000 bits, due to the current UE
Downlink RB RLC buffer area data volume be more than the RB cache congestion thresholding (3000 bit), therefore by the downlink of the UE
RB buffer area continuous congestion number+1.Assuming that the downlink RB buffer area continuous congestion number of the UE is 7 before, then it is updated to be somebody's turn to do
The downlink RB buffer area continuous congestion number of UE is 8, has reached cache congestion number thresholding, therefore triggering is that the UE is executed
The addition of SCell is transferred to following steps and continues with.
Step 2: the serving cell that base station is configured according to the carrier wave of system and the UE is current configures, and determines this addition behaviour
The candidate SCell of work gathers.
Specifically, base station removes in 5 all available downlink member carriers of system as the PCC's of the UE
CC1 and the CC2 as the member carrier of the SCC of the UE, then CC3, CC4 and CC5 are this candidate CC, these are waited
Select the corresponding cell of CC (these cells and UE current serving cell belong to the same base station) as this candidate
SCell.Since network topology is omni cell scene, each candidate CC one candidate SCell of correspondence, by CC3, CC4 and
The corresponding candidate SCell of CC5 is denoted as Cell respectively3、Cell4And Cell5。
Step 3: for each candidate SCell, obtaining equivalent signal-to-noise ratio and each time of the UE on each candidate SCell
Select the information on load of SCell.
Assuming that RSRQ of the available UE on each candidate SCell at this time, then using the RSRQ as UE in corresponding time
Select the equivalent signal-to-noise ratio on SCell.Information on load on each candidate SCell is the resource of each cell obtained from scheduler module
Occupancy.
Step 4: for each candidate SCell, which being calculated according to the resources occupation rate information of candidate SCell
On surplus resources number, according to equivalent signal-to-noise ratio of the surplus resources number combination UE in the cell on the candidate SCell,
Estimate the data carrying capabilities of these surplus resources on the candidate SCell.Assuming that estimation result are as follows: Cell3On remaining money
The data volume that source can carry is 1000 bits, Cell4On the data volume that can carry of surplus resources be 500 bits；Cell5On
The data volume that surplus resources can carry is 800 bits.
Step 5: by candidate cell Cell3、Cell4And Cell5The data volume that can be carried according to its surplus resources is descending
Sequence sequence, form the ordered queue of candidate SCell, queue after sequence is Cell3>Cell5>Cell4；
Step 6:, first cell Cell is taken out from candidate SCell ordered queue3, calculate cell Cell3On residue
The ratio of the downlink RB data to be transmitted amount of data volume and the UE that resource can carry is 1000/8000=0.125.Due to 0.125
< 0.2, show cell Cell3On the data volume that can carry of surplus resources and the UE downlink RB data to be transmitted amount ratio
Not up to predefined thresholding continues to take out next cell Cell from candidate SCell ordered queue at this time5, calculate cell
Cell3And Cell5On the sum of the data volume that can carry of surplus resources and the ratio of the downlink RB data to be transmitted amount of the UE be
(1000+800)/8000=0.225.Due to 0.225 > 0.2, show cell Cell3And Cell5On the number that can carry of surplus resources
Reach predefined thresholding according to the sum of amount and the ratio of the downlink RB data to be transmitted amount of the UE, it is therefore, small by this 2 of taking-up
Area (that is: Cell3And Cell5) as the SCell of the UE it is allocated to the UE.
Based on the same technical idea, the embodiment of the invention also provides a kind of base station equipments.
It referring to fig. 4, is the structural schematic diagram of base station equipment provided in an embodiment of the present invention.The base station equipment can include: obtain
Modulus block 401, judging module 402, statistical module 403 and configuration module 404, in which:
Module 401 is obtained, for obtaining the data volume to be sent of target terminal；
Judging module 402, for according to the period of setting judge to obtain the target terminal that gets of module 401 to
Send whether data volume reaches cache congestion amount data threshold, and in the case where being judged as YES, instruction statistical module 403 is united
The data volume for counting data to be sent so far is continuously greater than the number of cache congestion amount data threshold, and in statistical module
In the case that 403 numbers counted reach cache congestion number thresholding, indicate configuration module 404 for target terminal configuration
Auxiliary serving cell；
Statistical module 403, the data volume for counting data to be sent so far continuously reach cache congestion data
Measure the number of thresholding；
Configuration module 404, for configuring auxiliary serving cell for the target terminal.
Specifically, obtaining the RLC buffer area data volume that module 401 can obtain each downlink RB of target terminal；Judging module
402 are specifically used for: if judging, the RLC buffer area data volume of at least one downlink RB of target terminal reaches the corresponding caching of the RB
Congestion data amount thresholding, then update the RLC buffer area data volume continuous congestion number of the target terminal downlink RB, and indicates to unite
Count the RLC buffer area data volume continuous congestion number that module 403 counts the target terminal downlink RB so far.
Specifically, the buffer area data volume for each uplink LCG that target terminal reports can be obtained by obtaining module 401；Adjudicate mould
Block 402 is specifically used for: if it is corresponding slow to judge that the buffer area data volume of at least one uplink LCG of target terminal reaches the LCG
Congestion data amount thresholding is deposited, then updates the target terminal uplink LCG buffer area data volume continuous congestion number, and described in instruction
Module counts the target terminal uplink LCG buffer area data volume continuous congestion number so far.
Specifically, configuration module 404 is specifically used for: small according to system carrier configuration and the current service of the target terminal
Area's configuration determines candidate auxiliary serving cell set for the target terminal；Obtain the channel quality letter of each candidate auxiliary serving cell
Breath and information on load；According to the channel quality information and information on load of each candidate auxiliary serving cell, from each candidate auxiliary serving cell
Middle at least one cell of selection, and configure the cell selected to the auxiliary serving cell of the target terminal.
Specifically, configuration module 404 is specifically used for: removing in all available member carriers of system has been the target
After the member carrier of terminal configuration, corresponding and current with the target terminal serving cell of remaining member carrier is returned
The cell for belonging to same base station, the member being determined as in the candidate auxiliary serving cell set of the target terminal.
Wherein, the channel quality information of candidate auxiliary serving cell are as follows: the target terminal is in candidate auxiliary serving cell
Reference Signal Received Quality RSRQ；Alternatively, the channel quality information of candidate auxiliary serving cell is calculated according to the following formula:
Wherein, SINRiFor the Signal to Interference plus Noise Ratio of cell i, RSRPiIndicate the Reference Signal Received Power of cell i
RSRP, RSRPjIndicate the RSRP of cell j, j expression and cell i with the number of other cells of frequency point.
Specifically, configuration module 404 is in the channel quality information and information on load according to each candidate auxiliary serving cell, from each
During selecting at least one cell in candidate auxiliary serving cell, it is specifically used for executing following below scheme:
Step a, for each cell in candidate auxiliary serving cell set, it is small that this is calculated according to the information on load of the cell
Surplus resources number in area, according to the channel quality information of surplus resources number and the cell in the cell, determining should
The data carrying capabilities of surplus resources in cell；
Step c, the descending sequence of the data volume that can be carried according to surplus resources, from candidate auxiliary serving cell set
One cell of middle taking-up；
Step d, the sum of the data volume that the surplus resources in all cells taken out can carry is calculated, it is whole with the target
The ratio of the data to be transmitted amount at end is transferred to step e, is otherwise transferred to step c if the ratio is greater than pre-determined threshold；
Step e, all candidate auxiliary serving cells of taking-up are configured to the auxiliary serving cell of the target terminal.
Further, between the step a and step c further include: if step b, there is at least two candidate's auxiliary serving cell pair
Same member carrier is answered, then selects the data volume that surplus resources can carry at least two candidate auxiliary serving cell maximum
Cell, and the cell selected is retained in the candidate auxiliary serving cell set, the candidate auxiliary service of described at least two is small
Remaining cell in area is deleted from the candidate auxiliary serving cell set.
In conclusion the embodiment of the present invention for UE add SCell during, it is contemplated that the current service situation of UE and
Actual transmissions demand, when the serving cell of UE is unable to satisfy the data transfer demands of the UE, according to resource in each cell
Transmittability selects one or more suitable cells to be allocated to the UE as SCell, effectively utilizes so as to more flexible
System resource provides the data service service of higher speed according to the actual transmissions demand of UE for UE, and user is made to obtain better industry
Business experience.
Through the above description of the embodiments, those skilled in the art can be understood that the present invention can be by
Software adds the mode of required general hardware platform to realize, naturally it is also possible to which by hardware, but in many cases, the former is more
Good embodiment.Based on this understanding, technical solution of the present invention substantially in other words contributes to the prior art
Part can be embodied in the form of software products, which is stored in a storage medium, if including
Dry instruction is used so that a terminal device (can be mobile phone, personal computer, server or the network equipment etc.) executes sheet
Invent method described in each embodiment.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
Depending on protection scope of the present invention.
Claims (12)
1. a kind of auxiliary serving cell configuration method, which is characterized in that executed according to the period of setting:
The data volume to be sent of base station acquisition target terminal；
The base station judges whether the data volume to be sent of the target terminal reaches cache congestion amount data threshold, and is sentencing
In the case where breaking to be, the data volume for counting data to be sent so far continuously reaches time of cache congestion amount data threshold
Number；
If counting obtained number reaches cache congestion number thresholding, the base station is that the auxiliary service of target terminal configuration is small
Area；
The base station is that the target terminal configures auxiliary serving cell, is specifically included:
According to the current serving cell configuration of system carrier configuration and the target terminal, determined for the target terminal candidate auxiliary
Service cell set；
Obtain the channel quality information and information on load of each candidate auxiliary serving cell；
According to the channel quality information and information on load of each candidate auxiliary serving cell, selected at least from each candidate auxiliary serving cell
One cell, and configure the cell selected to the auxiliary serving cell of the target terminal；
The channel quality information and information on load according to each candidate auxiliary serving cell, selects from each candidate auxiliary serving cell
At least one cell, specifically includes:
Step a, it for each cell in candidate auxiliary serving cell set, is calculated in the cell according to the information on load of the cell
Surplus resources number the cell is determined according to the channel quality information of surplus resources number and the cell in the cell
On surplus resources data carrying capabilities；
Step c, the descending sequence of the data volume that can be carried according to surplus resources, takes from candidate auxiliary serving cell set
A cell out；
Step d, the sum of the data volume that the surplus resources in all cells taken out can carry is calculated, with the target terminal
The ratio of data to be transmitted amount is transferred to step e, is otherwise transferred to step c if the ratio is greater than pre-determined threshold；
Step e, all candidate auxiliary serving cells of taking-up are configured to the auxiliary serving cell of the target terminal.
2. the method as described in claim 1, which is characterized in that the base station obtains the data volume to be sent of target terminal, tool
Body includes: the wireless spread-spectrum technology RLC buffer area data volume that base station obtains each downlink radio bearer RB of target terminal；
The base station judges whether the data volume to be sent of the target terminal reaches cache congestion amount data threshold, and is sentencing
In the case where breaking to be, the data volume for counting data to be sent so far continuously reaches time of cache congestion amount data threshold
Number, specifically includes:
If the base station judges that the RLC buffer area data volume of at least one downlink RB of target terminal reaches the corresponding caching of the RB
Congestion data amount thresholding, then update the RLC buffer area data volume continuous congestion number of the target terminal downlink RB, and counts on
The RLC buffer area data volume continuous congestion number of the target terminal downlink RB until current.
3. the method as described in claim 1, which is characterized in that the base station obtains the data volume to be sent of target terminal, tool
Body includes: the buffer area data volume that base station obtains each uplink logic channel group LCG that target terminal reports；
The base station judges whether the data volume to be sent of the target terminal reaches cache congestion amount data threshold, and is sentencing
In the case where breaking to be, the data volume for counting data to be sent so far continuously reaches time of cache congestion amount data threshold
Number, specifically includes:
If the base station judges that the buffer area data volume of at least one uplink LCG of target terminal reaches the corresponding caching of the LCG
Congestion data amount thresholding then updates the target terminal uplink LCG buffer area data volume continuous congestion number, and counts on current
Until the target terminal uplink LCG buffer area data volume continuous congestion number.
4. the method as described in claim 1, which is characterized in that according to system carrier configuration and the current clothes of the target terminal
Cell of being engaged in configuration determines candidate secondary cell set for the target terminal, specifically includes:
Removed in all available member carriers of system be target terminal configuration member carrier after, by it is remaining at
Corresponding and current with the target terminal serving cell of member's carrier wave belongs to the cell of same base station, is determined as the mesh
Mark the member in the candidate auxiliary serving cell set of terminal.
5. the method as described in claim 1, which is characterized in that the channel quality information of candidate auxiliary serving cell are as follows: the mesh
Mark Reference Signal Received Quality RSRQ of the terminal in candidate auxiliary serving cell；Or
The channel quality information of candidate auxiliary serving cell is calculated according to the following formula:
Wherein, SINRiFor the Signal to Interference plus Noise Ratio of cell i, RSRPiIndicate the Reference Signal Received Power of cell i
RSRP, RSRPjIndicate the RSRP of cell j, j expression and cell i with the number of other cells of frequency point.
6. the method as described in claim 1, which is characterized in that between the step a and step c further include:
If step b, there is at least two candidate's auxiliary serving cell to correspond to same member carrier, the candidate auxiliary clothes of described at least two are selected
The maximum cell of data volume that surplus resources can carry in business cell, and the cell selected is retained in the auxiliary service of candidate
In set of cells, by remaining cell at least two candidate auxiliary serving cell from the candidate auxiliary serving cell set
It deletes.
7. a kind of base station equipment characterized by comprising obtain module, judging module, statistical module and configuration module, in which:
The acquisition module, for obtaining the data volume to be sent of target terminal；
The judging module judges whether the data volume to be sent of the target terminal reaches caching for the period according to setting
Congestion data amount thresholding, and in the case where being judged as YES, indicate statistical module counts number to be sent so far
According to data volume be continuously greater than the number of cache congestion amount data threshold, and reach slow in the number that the statistical module counts go out
In the case where depositing times of congestion thresholding, indicate that the configuration module is that the target terminal configures auxiliary serving cell；
Statistical module, the data volume for counting data to be sent so far continuously reach cache congestion amount data threshold
Number；
Configuration module, for configuring auxiliary serving cell for the target terminal；
The configuration module is specifically used for:
According to the current serving cell configuration of system carrier configuration and the target terminal, determined for the target terminal candidate auxiliary
Service cell set；
Obtain the channel quality information and information on load of each candidate auxiliary serving cell；
According to the channel quality information and information on load of each candidate auxiliary serving cell, selected at least from each candidate auxiliary serving cell
One cell, and configure the cell selected to the auxiliary serving cell of the target terminal；
The configuration module is in the channel quality information and information on load according to each candidate auxiliary serving cell, from each auxiliary service of candidate
During selecting at least one cell in cell, it is specifically used for executing following below scheme:
Step a, it for each cell in candidate auxiliary serving cell set, is calculated in the cell according to the information on load of the cell
Surplus resources number the cell is determined according to the channel quality information of surplus resources number and the cell in the cell
On surplus resources data carrying capabilities；
Step c, the descending sequence of the data volume that can be carried according to surplus resources, takes from candidate auxiliary serving cell set
A cell out；
Step d, the sum of the data volume that the surplus resources in all cells taken out can carry is calculated, with the target terminal
The ratio of data to be transmitted amount is transferred to step e, is otherwise transferred to step c if the ratio is greater than pre-determined threshold；
Step e, all candidate auxiliary serving cells of taking-up are configured to the auxiliary serving cell of the target terminal.
8. base station equipment as claimed in claim 7, which is characterized in that the acquisition module is specifically used for, and obtains target terminal
Each downlink radio bearer RB wireless spread-spectrum technology RLC buffer area data volume；
The judging module is specifically used for, if judging, the RLC buffer area data volume of at least one downlink RB of target terminal reaches
The corresponding cache congestion amount data threshold of the RB, then the RLC buffer area data volume for updating the target terminal downlink RB are continuously gathered around
Fill in number, and indicate the statistical module counts so far the target terminal downlink RB RLC buffer area data volume connect
Continuous times of congestion.
9. base station equipment as claimed in claim 7, which is characterized in that the acquisition module is specifically used for, and obtains target terminal
The buffer area data volume of each uplink LCG reported；
The judging module is specifically used for, if judging the buffer area number of at least one uplink logic channel group LCG of target terminal
Reach the corresponding cache congestion amount data threshold of the LCG according to amount, then updates the target terminal uplink LCG buffer area data volume and connect
Continuous times of congestion, and indicate that the target terminal uplink LCG buffer area data volume connects the statistical module counts so far
Continuous times of congestion.
10. base station equipment as claimed in claim 7, which is characterized in that the configuration module is specifically used for, system is all can
With removed in member carrier be target terminal configuration member carrier after, by remaining member carrier it is corresponding and
Current serving cell belongs to the cell of same base station with the target terminal, is determined as the auxiliary clothes of candidate of the target terminal
The member being engaged in set of cells.
11. base station equipment as claimed in claim 7, which is characterized in that the channel quality information of candidate auxiliary serving cell are as follows: institute
State Reference Signal Received Quality RSRQ of the target terminal in candidate auxiliary serving cell；Or
The channel quality information of candidate auxiliary serving cell is calculated according to the following formula:
Wherein, SINRiFor the Signal to Interference plus Noise Ratio of cell i, RSRPiIndicate the Reference Signal Received Power of cell i
RSRP, RSRPjIndicate the RSRP of cell j, j expression and cell i with the number of other cells of frequency point.
12. base station equipment as claimed in claim 7, which is characterized in that between the step a and step c further include:
If step b, there is at least two candidate's auxiliary serving cell to correspond to same member carrier, the candidate auxiliary clothes of described at least two are selected
The maximum cell of data volume that surplus resources can carry in business cell, and the cell selected is retained in the auxiliary service of candidate
In set of cells, by remaining cell at least two candidate auxiliary serving cell from the candidate auxiliary serving cell set
It deletes.
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| WO2023211964A1 (en) * | 2022-04-26 | 2023-11-02 | John Mezzalingua Associates, LLC | Method and system for exchanging secondary cell information for carrier aggregation |
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| KR102301836B1 (en) * | 2015-02-27 | 2021-09-14 | 삼성전자 주식회사 | Method and apparatus for controlling SCell in a mobile communication system |
| CN108243505B (en) * | 2016-12-26 | 2021-09-28 | 中国移动通信集团广东有限公司 | Resource scheduling method and device |
| CN109151877A (en) * | 2017-06-27 | 2019-01-04 | 大唐移动通信设备有限公司 | The configuration method and device of secondary carrier in a kind of polymerization of carrier wave |
| CN111918310B (en) * | 2020-08-10 | 2024-04-16 | 河北电信设计咨询有限公司 | Cell networking method with user as center |
| CN115134818B (en) * | 2022-07-13 | 2024-03-19 | 中国电信股份有限公司 | Method, device, equipment and computer medium for configuring secondary cell of terminal user |
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