CN102238550A - Method and device for configuring member carriers for terminal in carrier aggregation system - Google Patents
Method and device for configuring member carriers for terminal in carrier aggregation system Download PDFInfo
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Abstract
The invention provides a method and device for configuring member carriers for a terminal in a carrier aggregation system. In the method for configuring the member carriers for the terminal in the carrier aggregation system, when secondary member carriers are configured for the terminal, a second channel quality parameter is selected from sector channel quality parameters pre-obtained by a terminal through measurement, wherein the second channel quality parameter is the maximum in the channel quality parameters which conform to the preset secondary member carrier adding rule, in the first type of channel quality parameters, the first type of channel quality parameters correspond to a first channel quality parameter and are the channel quality parameters of all the sectors of a first base station on the carriers of the terminal except for the main member carriers of the terminal, and the first channel quality parameter is the maximum in all the channel quality parameters obtained by the terminal through measurement; and a second carrier corresponding to the second channel quality parameter is configured as the secondary member carrier of the terminal. By means of the method and device for configuring the member carriers for the terminal, a user can use carriers appropriately, thus the system throughput is improved, and the dispatching complexity is reduced.
Description
Technical field
The present invention relates to the carrier aggregation technology field, be specifically related to the method and the base station of the member carrier (CC, Component Carrier) of configurating terminal in a kind of carrier aggregation system.
Background technology
Third generation partner program (3rd Generation Partnership Project, 3GPP) as the vital tissue of moving communicating field, greatly promoted 3G (Third Generation) Moblie technology (The ThirdGeneration, standardization progress 3G), formulate a series of Wideband Code Division Multiple Access (WCDMA) that comprise and inserted (WideCode Division Multiple Access, WCDMA), high speed downlink packet inserts (High SpeedDownlink Packet Access, HSDPA), (High Speed UplinkPacket Access HSUPA) waits in interior communication system standard in the high speed uplink packet access.In order to tackle the challenge of broadband access technology, and satisfy the demand of growing novel business, 3GPP will have started 3G Long Term Evolution (Long Term Evolution in the end of the year 2004, LTE) standardization effort of technology, wish further to improve spectrum efficiency, improve the performance of Cell Edge User, reduce system delay, the access service of higher rate etc. is provided for the high-speed mobile user.In June, 2008,3GPP has finished the technical need report of LTE-A, has proposed the minimum essential requirement of LTE-A: descending peak rate 1Gbps, and up peak rate 500Mbps, up-downgoing peaks spectrum utilance reaches 15Mbps/Hz and 30Mbps/Hz respectively.These parameters far above the minimum technology demand parameter of ITU, have remarkable advantages.
LTE-A supports in continuous carrier polymerization and the frequency band and the discontinuous carrier polymerization between frequency band, and maximum energy aggregate bandwidth can reach 100MHz.LTE-A gets up to form the operable big system bandwidth resource of LTE-A with several member's carrier frequency resource (the Component frequency resource) polymerizations that are distributed on the different frequency range.
Consider the requirement of LTE-A to new frequency spectrum, operator is when considering backwards compatibility, and inevitable also will consider introduced new frequency range and radio frequency link.And owing to be separate between these new radio frequency links and the existing radio frequency link, so operator has greater flexibility when arranging net.As shown in Figure 1, white ovals shape is represented existing sector among Fig. 1, supposes that its member carrier belongs to CC1 layer (layer), and the ellipse that is filled with oblique line is represented new sector of introducing, and supposes that its member carrier belongs to the CC2 layer.When introducing new sector frequency and existing sector not simultaneously, operator can be rotated according to the environment needs antenna that it is corresponding, is used for the border, sector of legacy network is compensated, thereby obtains the better throughput and the network coverage.In the carrier aggregation system, between a plurality of member carriers, terminal is adopted the mode of combined dispatching, can obtain the ideal system performance usually.
Summary of the invention
Embodiment of the invention technical problem to be solved provides the method and the device of the member carrier of configurating terminal in a kind of carrier aggregation system, in order to the member carrier of configurating terminal, improves the throughput of carrier aggregation system.
For solving the problems of the technologies described above, the embodiment of the invention provides scheme as follows:
The method of the member carrier of configurating terminal in a kind of carrier aggregation system comprises:
Obtain the channel quality parameter of each sector of all base stations on each carrier wave that described terminal measures;
From the channel quality parameter that described terminal measures, select the second channel mass parameter, wherein, described second channel mass parameter is the maximum in the channel quality parameter that predetermined inferior member carrier adds rule of meeting in the first kind channel quality parameter, described first kind channel quality parameter is the channel quality parameter of all sectors on first base station other carrier wave outside the main member carrier of described terminal of the first channel quality parameter correspondence, and described first channel quality parameter is the maximum in all channel quality parameter of measuring of described terminal;
Second carrier wave of described second channel mass parameter correspondence is configured to the inferior member carrier of described terminal.
Preferably, in the said method,
Describedly from the channel quality parameter that described terminal measures, select the second channel mass parameter, comprising:
The channel quality parameter of all sectors from other carrier wave outside the main member carrier of described terminal of described first base station, select the channel quality parameter candidate collection that meets predetermined inferior member carrier interpolation rule;
The second channel mass parameter of selective channel mass parameter maximum from described channel quality parameter candidate collection.
Preferably, in the said method,
Describedly from the channel quality parameter that described terminal measures, select the second channel mass parameter, comprising:
The channel quality parameter of all sectors from other carrier wave outside described main member carrier of all base stations, select the channel quality parameter candidate collection that meets predetermined inferior member carrier interpolation rule;
Judge in the described channel quality parameter candidate collection that maximum channel quality parameter is whether corresponding to described first base station: if, then with channel quality parameter maximum in the described channel quality parameter candidate collection as described second channel mass parameter; Otherwise, process ends.
Preferably, in the said method,
After selecting described second channel mass parameter, further judge that whether described second channel mass parameter is the maximum in the channel quality parameter of all sectors on other carrier wave outside described main member carrier of all base stations: if then enter the step that described second carrier wave with described second channel mass parameter correspondence is configured to the inferior member carrier of described terminal; Otherwise, process ends.
Preferably, in the said method, also comprise:
From all channel quality parameter that described terminal measures, select the first maximum channel quality parameter;
With the first carrier of the described first channel quality parameter correspondence, be configured to the main member carrier of described terminal.
Preferably, in the said method, also comprise:
Second sector of record second channel mass parameter correspondence and the corresponding relation between time member carrier;
When meeting predetermined inferior member carrier deletion rule in described second sector, delete described member carrier of the described second sector correspondence.
Preferably, in the said method,
Described member carrier adds rule and comprises:
The Signal to Interference plus Noise Ratio of the sector of this channel quality parameter correspondence is greater than predetermined first thresholding;
Perhaps, the difference of this channel quality parameter and described first channel quality parameter is less than predetermined second thresholding;
Perhaps, the Signal to Interference plus Noise Ratio of the sector of this channel quality parameter correspondence greater than the difference of predetermined first thresholding and this channel quality parameter and described first channel quality parameter less than predetermined second thresholding;
Described time the member carrier deletion rule comprises:
The Signal to Interference plus Noise Ratio of described second sector is less than predetermined the 3rd thresholding;
Perhaps, the difference of the channel quality parameter of described second sector and described first channel quality parameter is greater than predetermined the 4th thresholding;
Perhaps, the Signal to Interference plus Noise Ratio of described second sector less than the difference of the channel quality parameter of predetermined the 3rd thresholding and described second sector and described first channel quality parameter greater than predetermined the 4th thresholding.
The embodiment of the invention also provides the device of the member carrier of configurating terminal in a kind of carrier aggregation system, it is characterized in that, comprising:
Parameter obtains the unit, is used to obtain the channel quality parameter of each sector of all base stations on each carrier wave that described terminal measures;
Selected cell, be used for selecting the second channel mass parameter from the channel quality parameter that described terminal measures, wherein, described second channel mass parameter is the maximum in the channel quality parameter that predetermined inferior member carrier adds rule of meeting in the first kind channel quality parameter, described first kind channel quality parameter is the channel quality parameter of all sectors on first base station other carrier wave outside the main member carrier of described terminal of the first channel quality parameter correspondence, and described first channel quality parameter is the maximum in all channel quality parameter of measuring of described terminal;
Inferior member carrier adding device is used for second carrier wave of described second channel mass parameter correspondence is configured to the inferior member carrier of described terminal.
Preferably, in the said apparatus,
Described selected cell is further used for the channel quality parameter of all sectors from other carrier wave outside the main member carrier of described terminal of described first base station, selects to meet the channel quality parameter candidate collection that predetermined inferior member carrier adds rule; And, the second channel mass parameter of selective channel mass parameter maximum from described channel quality parameter candidate collection.
Preferably, in the said apparatus,
Described selected cell is further used for the channel quality parameter of all sectors from other carrier wave outside described main member carrier of all base stations, selects to meet the channel quality parameter candidate collection that predetermined inferior member carrier adds rule; And, judge in the described channel quality parameter candidate collection that maximum channel quality parameter is whether corresponding to described first base station: if, then with channel quality parameter maximum in the described channel quality parameter candidate collection as described second channel mass parameter.
Preferably, in the said apparatus, also comprise judging unit;
Described selected cell is further used for triggering described judging unit after selecting described second channel mass parameter;
Described judging unit, be used for judging whether described second channel mass parameter is the maximum of the channel quality parameter of all sectors on other carrier wave outside described main member carrier of all base stations: if then trigger the inferior member carrier that described member carrier adding device is configured to second carrier wave of described second channel mass parameter correspondence described terminal; Otherwise, do not trigger the member carrier adding device described time.
Preferably, in the said apparatus, also comprise;
Main member carrier dispensing unit is used for all channel quality parameter of measuring from described terminal, selects the first maximum channel quality parameter; With the first carrier of the described first channel quality parameter correspondence, be configured to the main member carrier of described terminal.
Preferably, in the said apparatus, also comprise;
Record cell is used to write down second sector of second channel mass parameter correspondence and the corresponding relation between time member carrier;
Inferior member carrier delete cells when meeting predetermined inferior member carrier deletion rule in described second sector, is deleted described member carrier of the described second sector correspondence.
Preferably, in the said apparatus,
Described member carrier adds rule and comprises:
The Signal to Interference plus Noise Ratio of the sector of this channel quality parameter correspondence is greater than predetermined first thresholding;
Perhaps, the difference of this channel quality parameter and described first channel quality parameter is less than predetermined second thresholding;
Perhaps, the Signal to Interference plus Noise Ratio of the sector of this channel quality parameter correspondence greater than the difference of predetermined first thresholding and this channel quality parameter and described first channel quality parameter less than predetermined second thresholding;
Described time the member carrier deletion rule comprises:
The Signal to Interference plus Noise Ratio of described second sector is less than predetermined the 3rd thresholding;
Perhaps, the difference of the channel quality parameter of described second sector and described first channel quality parameter is greater than predetermined the 4th thresholding;
Perhaps, the Signal to Interference plus Noise Ratio of described second sector less than the difference of the channel quality parameter of predetermined the 3rd thresholding and described second sector and described first channel quality parameter greater than predetermined the 4th thresholding.
From the above as can be seen, the method of the member carrier of configurating terminal and device in the carrier aggregation system provided by the invention, when being terminal configuration time member carrier, select to belong to the carrier wave of a base station, as the inferior member carrier of this terminal with main member carrier; And, the embodiment of the invention can be according to the channel quality parameter of the sector of terminal to report, and deletion does not in time meet the inferior member carrier of pre-defined rule, thereby makes the user use suitable carrier wave, can reach the raising throughput of system, reduce the beneficial effect of scheduling complexity.
Description of drawings
Fig. 1 is the application scenarios schematic diagram of a kind of carrier aggregation system in the prior art;
Fig. 2 is the simulation result of resource utilization of the CC1 of system shown in Figure 1;
Fig. 3 is the schematic flow sheet of method of the member carrier of the described configurating terminal of the embodiment of the invention;
Fig. 4 is the exploded view of the carrier aggregation system of Fig. 1;
Fig. 5 is a kind of flow chart of execution mode of the member carrier of embodiment of the invention configurating terminal;
Fig. 6 is the flow chart of another kind of execution mode of the member carrier of embodiment of the invention configurating terminal;
Fig. 7 is the structural representation of device of the member carrier of the described configurating terminal of the embodiment of the invention;
Fig. 8 is the simulation result of the carrier aggregation system throughput before and after the method for the member carrier of the described configurating terminal of the employing embodiment of the invention.
Embodiment
By the Radio Resource utilization rate under the combined dispatching situation of CC1 in the carrier aggregation system shown in Figure 1 and CC2 is carried out emulation, we obtain the simulation result of cumulative distribution function (CDF) curve chart of the Radio Resource utilization rate of CC1 as shown in Figure 2.As can be seen from Figure 2, about 35% terminal (UE) only uses CC1 to communicate, and about 35% terminal only uses CC2 to communicate, and about 30% terminal can use CC1 and CC2 to communicate.As can be seen, about 70% terminal only can use a member carrier to communicate, and in this case, only need adopt independent scheduling for these terminals on a member carrier, these terminals only need be connected on the carrier wave, and there is no need to be connected on two carrier waves.If in carrier aggregation system, both adopted the independent scheduling of single carrier wave, also adopt the combined dispatching between the carrier wave, just need carry out suitable configuration by the member carrier to terminal at the place, base station, it can be scheduled for, so that carrier aggregation system can obtain the ideal system performance on appropriate carrier wave.
The present invention proposes the method for the member carrier of configurating terminal in a kind of carrier aggregation system, is the terminal configuration member carrier, makes terminal to be scheduled on appropriate carrier wave, to improve the throughput of carrier aggregation system.According to the relevant criterion of 3GPP, the member carrier of terminal specifically comprises main member carrier (PCC, Primary Component Carrier) and time member carrier (SCC, Secondary ComponentCarrier).The present invention is configured by the member carrier of following specific embodiment to terminal.
Please refer to Fig. 3, the method for the member carrier of the described configurating terminal of the embodiment of the invention is applied in the network side of carrier aggregation system, specifically may further comprise the steps:
In the carrier aggregation system, the channel quality parameter of certain sector that terminal measures, corresponding one by one with certain sector on certain carrier wave, certain base station, promptly a channel quality parameter is unique corresponding to a base station, a carrier wave and a sector.With Fig. 1 is example, and carrier aggregation system shown in Figure 1 is decomposed on carrier wave and base station, obtains exploded view as shown in Figure 4.Fig. 4 represents that base station 1～3 carries out carrier aggregation respectively on carrier wave CC1 and CC2, and there are 3 sectors each base station on each carrier wave, and described channel quality parameter is meant wherein certain sector channel mass parameter that terminal measures.
Here, inferior member carrier interpolation rule can set up on their own as required.For example, can be set to:
(1) Signal to Interference plus Noise Ratio of the sector of this channel quality parameter correspondence (SINR) is greater than predetermined first thresholding.At this moment, if the SINR of the sector of certain channel quality parameter correspondence greater than predetermined first thresholding, then this channel quality parameter meets described member carrier and adds rule.
(2) difference of this channel quality parameter and described first channel quality parameter is less than predetermined second thresholding.At this moment, if the difference of certain channel quality parameter and described first channel quality parameter less than predetermined second thresholding, then this channel quality parameter meets described member carrier and adds rule.
(3) Signal to Interference plus Noise Ratio of the sector of this channel quality parameter correspondence greater than the difference of predetermined first thresholding and this channel quality parameter and described first channel quality parameter less than predetermined second thresholding.Be the union of above-mentioned (1) (2) in this case, if certain channel quality parameter satisfies simultaneously above-mentioned (1) and (2), then this channel quality parameter meets described member carrier and adds rule.
Certainly, the user can also be provided with other inferior member carrier interpolation rule voluntarily.
In the said method, before step 32, also comprise: from all channel quality parameter that described terminal measures, select the first maximum channel quality parameter; With the first carrier of the described first channel quality parameter correspondence, be configured to the main member carrier of described terminal.
In the said method, after step 33, also comprise: second sector of record second channel mass parameter correspondence and the corresponding relation between time member carrier; When meeting predetermined inferior member carrier deletion rule in described second sector, delete described member carrier of the described second sector correspondence.Concrete, described time the member carrier deletion rule comprises: the Signal to Interference plus Noise Ratio of described second sector is less than predetermined the 3rd thresholding; Perhaps, the difference of the channel quality parameter of described second sector and described first channel quality parameter is greater than predetermined the 4th thresholding; Perhaps, the Signal to Interference plus Noise Ratio of described second sector less than the difference of the channel quality parameter of predetermined the 3rd thresholding and described second sector and described first channel quality parameter greater than predetermined the 4th thresholding, or the like.
After determining or having upgraded the primary and secondary member carrier of terminal, network side (as the base station) is notified this terminal with the information of the primary and secondary member carrier of this terminal, and terminal inserts corresponding member carrier according to this information.Network side is dispatched according to the primary and secondary member carrier of terminal when dispatching.
By above step, the embodiment of the invention selects to belong to main member carrier the carrier wave of a base station, as the inferior member carrier of this terminal when being terminal configuration time member carrier; And the embodiment of the invention can be according to the channel quality parameter of the sector of terminal to report, and deletion does not in time meet the inferior member carrier of pre-defined rule, thereby makes scheduling to carry out based on suitable member carrier, can improve the throughput of carrier aggregation system.
Above-mentioned channel quality parameter specifically can be Reference Signal Received Power (RSRP, Reference SignalReceived Power), can also be Reference Signal Received Quality (RSRQ, Reference SignalReceived Quality) parameter.
Below be example with RSRP, by two embodiments said method is further described.For RSRQ, its execution mode is also identical.
＜execution mode 1 〉
Please refer to shown in Figure 5ly, the method for the member carrier of the configurating terminal described in the present embodiment is applied in the network side of carrier aggregation system, specifically comprises:
Here, in above-mentioned steps 51, after network side received the RSRP of member carrier of terminal to report, described terminal is current to have disposed main member carrier if judge, and then can directly enter above-mentioned steps 53.
Here, if the described RSRP candidate collection that above-mentioned steps 54 obtains then enters step 57 with process ends for empty.
Application scenarios with Fig. 4 is the above-mentioned flow process of example explanation present embodiment.Only comprise two member carrier CC1 and CC2 among Fig. 4, and 3 base stations.Each oval sector, the RSRP of the sector that the numeric representation terminal in the ellipse measures represented.According to above-mentioned flow process, network side obtains the RSRP of each sector of terminal to report, and wherein in the RSRP of all sectors, the RSRP that measures on the sector 1 of base station 1 is 11, it is worth maximum, so present embodiment is configured to the carrier wave (being CC1) of this RSRP correspondence the main member carrier of terminal; Then, the RSRP of all sectors on other member carrier outside main member carrier (CC1), select and satisfy the RSRP candidate collection that predetermined inferior member carrier adds rule, promptly select the RSRP candidate collection that satisfies above-mentioned rule the RSRP of the sector of all from CC2, the RSRP member carrier of supposing the sector 5 of the sector 5 of base station 2 and base station 3 all satisfies above-mentioned rule, promptly all is the RSRP candidate collection; From the RSRP candidate collection, select the RSRP of RSRP maximum again, i.e. the RSRP of the sector 5 of base station 2; Because the base station of the RSRP correspondence of the sector 5 of base station 2 is base station 2, and the base station of a RSRP correspondence is base station 1, both are inequality, therefore do not carry out the action of any interpolation time member carrier, directly process ends.So far, network side has been described terminal configuration main member carrier, but do not dispose member carrier any time.
＜execution mode 2 〉
Please refer to shown in Figure 6ly, the method for the member carrier of the configurating terminal described in the present embodiment is applied in the network side of carrier aggregation system, specifically comprises:
Here, in above-mentioned steps 61, after network side received all RSRP of terminal to report, described terminal is current to have disposed main member carrier if judge, and then can directly enter above-mentioned steps 63.
Here, in the above-mentioned steps 64, if the described RSRP candidate collection that obtains is sky, then direct process ends.
Still the application scenarios with Fig. 4 is the above-mentioned flow process of example explanation present embodiment.Similarly, according to above-mentioned flow process, network side will be selected the sector 1 pairing carrier wave of base station 1, and as the main member carrier of terminal, promptly main member carrier is CC1, and first base station is base station 1; Then, the RSRP of all sectors from other carrier wave outside CC1 of base station 1, select and satisfy the RSRP candidate collection that predetermined inferior member carrier adds rule, promptly from base station 1 among the RSRP of all sectors of CC2, select the RSRP candidate collection that satisfies above-mentioned rule, suppose that the sector 5 of base station 1 and the RSRP of sector 6 correspondences satisfy above-mentioned rule, promptly all belong to the RSRP candidate collection; Select the RSRP of RSRP maximum again from the RSRP candidate collection, promptly the RSRP of the sector 5 of base station 1 then with the carrier wave CC2 of the 2nd RSRP correspondence, is configured to the inferior member carrier of described terminal as described the 2nd RSRP.So far, network side has been described terminal configuration main member carrier has also disposed inferior member carrier.
More than two execution modes illustrated that the present invention adds the process of time member carrier.At same application scenarios, the final result of above-mentioned two execution modes may be different.
In execution mode 2, after in step 65, selecting the 2nd RSRP, can also judge further that whether described the 2nd RSRP is the maximum among the RSRP of all sectors on all base stations other carrier wave outside described main member carrier of measuring of described terminal: if, then enter described step 66, be configured to the step of the inferior member carrier of described terminal with second carrier wave described the 2nd RSRP correspondence; Otherwise, do not carry out the action of any configuration time member carrier, directly process ends.Like this, the result of above-mentioned execution mode 2 is just identical with above-mentioned execution mode 1.
Based on the method for the member carrier of above-mentioned configurating terminal, the embodiment of the invention also provides a kind of device of member carrier of configurating terminal, and this device is arranged on the network side of carrier aggregation system, and as shown in Figure 7, this device specifically comprises:
Parameter obtains the unit, is used to obtain the channel quality parameter of each sector of all base stations on each carrier wave that described terminal measures;
Selected cell, be used for selecting the second channel mass parameter from the channel quality parameter that described terminal measures, wherein, described second channel mass parameter is the maximum in the channel quality parameter that predetermined inferior member carrier adds rule of meeting in the first kind channel quality parameter, described first kind channel quality parameter is the channel quality parameter of all sectors on first base station other carrier wave outside the main member carrier of described terminal of the first channel quality parameter correspondence, and described first channel quality parameter is the maximum in all channel quality parameter of measuring of described terminal;
Inferior member carrier adding device is used for the inferior member carrier that root is configured to second carrier wave of described second channel mass parameter correspondence described terminal.
Preferably, said apparatus also comprises:
Main member carrier dispensing unit is used for all channel quality parameter of measuring from described terminal, selects the first maximum channel quality parameter; With the first carrier of the described first channel quality parameter correspondence, be configured to the main member carrier of described terminal;
Record cell is used to write down second sector of second channel mass parameter correspondence and the corresponding relation between time member carrier;
Inferior member carrier delete cells when meeting predetermined inferior member carrier deletion rule in described second sector, is deleted described member carrier of the described second sector correspondence.
Corresponding to above-mentioned execution mode 1, described selected cell, be further used for the channel quality parameter of all sectors from all base stations other carrier wave outside described main member carrier that described terminal measures, select the channel quality parameter candidate collection that meets predetermined inferior member carrier interpolation rule; And, judge in the described channel quality parameter candidate collection that maximum channel quality parameter is whether corresponding to described first base station: if, then with channel quality parameter maximum in the described channel quality parameter candidate collection as described second channel mass parameter.
Corresponding to above-mentioned execution mode 2, described selected cell, be further used for the channel quality parameter of all sectors from described first base station other carrier wave outside the main member carrier of described terminal that described terminal measures, select the channel quality parameter candidate collection that meets predetermined inferior member carrier interpolation rule; And, the second channel mass parameter of selective channel mass parameter maximum from described channel quality parameter candidate collection.
As an embodiment, said apparatus also comprises judging unit;
Described selected cell is further used for triggering described judging unit after selecting described second channel mass parameter;
Described judging unit, be used for judging that whether described second channel mass parameter is the maximum of the channel quality parameter of all sectors on all base stations other carrier wave outside described main member carrier of measuring of described terminal: if then trigger the inferior member carrier that described member carrier adding device is configured to second carrier wave of described second channel mass parameter correspondence described terminal; Otherwise, do not trigger the member carrier adding device described time.
As a preferred embodiment, in the said apparatus, described member carrier adds rule and comprises:
The Signal to Interference plus Noise Ratio of the sector of this channel quality parameter correspondence is greater than predetermined first thresholding;
Perhaps, the difference of this channel quality parameter and described first channel quality parameter is less than predetermined second thresholding;
Perhaps, the Signal to Interference plus Noise Ratio of the sector of this channel quality parameter correspondence greater than the difference of predetermined first thresholding and this channel quality parameter and described first channel quality parameter less than predetermined second thresholding;
Described time the member carrier deletion rule comprises:
The Signal to Interference plus Noise Ratio of described second sector is less than predetermined the 3rd thresholding;
Perhaps, the difference of the channel quality parameter of described second sector and described first channel quality parameter is greater than predetermined the 4th thresholding;
Perhaps, the Signal to Interference plus Noise Ratio of described second sector less than the difference of the channel quality parameter of predetermined the 3rd thresholding and described second sector and described first channel quality parameter greater than predetermined the 4th thresholding.
At last, by the throughput of the carrier aggregation system before and after the employing present embodiment said method is carried out emulation, the beneficial effect of the embodiment of the invention is described.
Please refer to Fig. 8, curve 3 is experience cumulative distribution function (empirical CDF) curve chart that does not adopt the carrier aggregation system throughput of present embodiment said method, curve 1, curve 2 are respectively the experience cumulative distribution function curve diagrams that adopts the carrier aggregation system throughput of above-mentioned execution mode 1 of present embodiment and execution mode 2, and wherein curve 1 and curve 2 approach to overlap.Following table 1 is the contrast of the average throughput of the carrier aggregation system before and after the employing present embodiment said method.
| Do not adopt the method for present | Execution mode | 1 | Execution mode 2 | |
| Average throughput (Mbps) | 43.05 | 52.27(21.4％) | 52.24(21.3％) |
Table 1
As can be seen, adopt the present embodiment said method after, it is about 21% that the average throughput of carrier aggregation system has improved, therefore, the embodiment of the invention can improve the throughput of carrier aggregation system, obtains good systematic function.
The above only is embodiments of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (16)
1. the method for the member carrier of configurating terminal in the carrier aggregation system is characterized in that, comprising:
Obtain the channel quality parameter of each sector of all base stations on each carrier wave that described terminal measures;
From the channel quality parameter that described terminal measures, select the second channel mass parameter, wherein, described second channel mass parameter is the maximum in the channel quality parameter that predetermined inferior member carrier adds rule of meeting in the first kind channel quality parameter, described first kind channel quality parameter is the channel quality parameter of all sectors on first base station other carrier wave outside the main member carrier of described terminal of the first channel quality parameter correspondence, and described first channel quality parameter is the maximum in all channel quality parameter of measuring of described terminal;
Second carrier wave of described second channel mass parameter correspondence is configured to the inferior member carrier of described terminal.
2. the method for claim 1 is characterized in that,
Describedly from the channel quality parameter that described terminal measures, select the second channel mass parameter, comprising:
The channel quality parameter of all sectors from other carrier wave outside the main member carrier of described terminal of described first base station, select the channel quality parameter candidate collection that meets predetermined inferior member carrier interpolation rule;
The second channel mass parameter of selective channel mass parameter maximum from described channel quality parameter candidate collection.
3. the method for claim 1 is characterized in that,
Describedly from the channel quality parameter that described terminal measures, select the second channel mass parameter, comprising:
The channel quality parameter of all sectors from other carrier wave outside described main member carrier of all base stations, select the channel quality parameter candidate collection that meets predetermined inferior member carrier interpolation rule;
Judge in the described channel quality parameter candidate collection that maximum channel quality parameter is whether corresponding to described first base station: if, then with channel quality parameter maximum in the described channel quality parameter candidate collection as described second channel mass parameter; Otherwise, process ends.
4. the method for claim 1 is characterized in that,
After selecting described second channel mass parameter, further judge that whether described second channel mass parameter is the maximum in the channel quality parameter of all sectors on other carrier wave outside described main member carrier of all base stations: if then enter the step that described second carrier wave with described second channel mass parameter correspondence is configured to the inferior member carrier of described terminal; Otherwise, process ends.
5. the method for claim 1 is characterized in that, also comprises:
From all channel quality parameter that described terminal measures, select the first maximum channel quality parameter;
With the first carrier of the described first channel quality parameter correspondence, be configured to the main member carrier of described terminal.
6. as each described method of claim 1 to 5, it is characterized in that, also comprise:
Second sector of record second channel mass parameter correspondence and the corresponding relation between time member carrier;
When meeting predetermined inferior member carrier deletion rule in described second sector, delete described member carrier of the described second sector correspondence.
7. method as claimed in claim 6 is characterized in that,
Described member carrier adds rule and comprises:
The Signal to Interference plus Noise Ratio of the sector of this channel quality parameter correspondence is greater than predetermined first thresholding;
Perhaps, the difference of this channel quality parameter and described first channel quality parameter is less than predetermined second thresholding;
Perhaps, the Signal to Interference plus Noise Ratio of the sector of this channel quality parameter correspondence greater than the difference of predetermined first thresholding and this channel quality parameter and described first channel quality parameter less than predetermined second thresholding;
Described time the member carrier deletion rule comprises:
The Signal to Interference plus Noise Ratio of described second sector is less than predetermined the 3rd thresholding;
Perhaps, the difference of the channel quality parameter of described second sector and described first channel quality parameter is greater than predetermined the 4th thresholding;
Perhaps, the Signal to Interference plus Noise Ratio of described second sector less than the difference of the channel quality parameter of predetermined the 3rd thresholding and described second sector and described first channel quality parameter greater than predetermined the 4th thresholding.
8. the method for claim 1 is characterized in that, described channel quality parameter is Reference Signal Received Power or Reference Signal Received Quality parameter.
9. the device of the member carrier of configurating terminal in the carrier aggregation system is characterized in that, comprising:
Parameter obtains the unit, is used to obtain the channel quality parameter of each sector of all base stations on each carrier wave that described terminal measures;
Selected cell, be used for selecting the second channel mass parameter from the channel quality parameter that described terminal measures, wherein, described second channel mass parameter is the maximum in the channel quality parameter that predetermined inferior member carrier adds rule of meeting in the first kind channel quality parameter, described first kind channel quality parameter is the channel quality parameter of all sectors on first base station other carrier wave outside the main member carrier of described terminal of the first channel quality parameter correspondence, and described first channel quality parameter is the maximum in all channel quality parameter of measuring of described terminal;
Inferior member carrier adding device is used for second carrier wave of described second channel mass parameter correspondence is configured to the inferior member carrier of described terminal.
10. device as claimed in claim 9 is characterized in that,
Described selected cell is further used for the channel quality parameter of all sectors from other carrier wave outside the main member carrier of described terminal of described first base station, selects to meet the channel quality parameter candidate collection that predetermined inferior member carrier adds rule; And, the second channel mass parameter of selective channel mass parameter maximum from described channel quality parameter candidate collection.
11. device as claimed in claim 9 is characterized in that,
Described selected cell is further used for the channel quality parameter of all sectors from other carrier wave outside described main member carrier of all base stations, selects to meet the channel quality parameter candidate collection that predetermined inferior member carrier adds rule; And, judge in the described channel quality parameter candidate collection that maximum channel quality parameter is whether corresponding to described first base station: if, then with channel quality parameter maximum in the described channel quality parameter candidate collection as described second channel mass parameter.
12. device as claimed in claim 9 is characterized in that, also comprises judging unit;
Described selected cell is further used for triggering described judging unit after selecting described second channel mass parameter;
Described judging unit, be used for judging whether described second channel mass parameter is the maximum of the channel quality parameter of all sectors on other carrier wave outside described main member carrier of all base stations: if then trigger the inferior member carrier that described member carrier adding device is configured to second carrier wave of described second channel mass parameter correspondence described terminal; Otherwise, do not trigger the member carrier adding device described time.
13. device as claimed in claim 9 is characterized in that, also comprises;
Main member carrier dispensing unit is used for all channel quality parameter of measuring from described terminal, selects the first maximum channel quality parameter; With the first carrier of the described first channel quality parameter correspondence, be configured to the main member carrier of described terminal.
14. as the described device of claim 9 to 13, it is characterized in that, also comprise;
Record cell is used to write down second sector of second channel mass parameter correspondence and the corresponding relation between time member carrier;
Inferior member carrier delete cells when meeting predetermined inferior member carrier deletion rule in described second sector, is deleted described member carrier of the described second sector correspondence.
15. device as claimed in claim 14 is characterized in that,
Described member carrier adds rule and comprises:
The Signal to Interference plus Noise Ratio of the sector of this channel quality parameter correspondence is greater than predetermined first thresholding;
Perhaps, the difference of this channel quality parameter and described first channel quality parameter is less than predetermined second thresholding;
Perhaps, the Signal to Interference plus Noise Ratio of the sector of this channel quality parameter correspondence greater than the difference of predetermined first thresholding and this channel quality parameter and described first channel quality parameter less than predetermined second thresholding;
Described time the member carrier deletion rule comprises:
The Signal to Interference plus Noise Ratio of described second sector is less than predetermined the 3rd thresholding;
Perhaps, the difference of the channel quality parameter of described second sector and described first channel quality parameter is greater than predetermined the 4th thresholding;
Perhaps, the Signal to Interference plus Noise Ratio of described second sector less than the difference of the channel quality parameter of predetermined the 3rd thresholding and described second sector and described first channel quality parameter greater than predetermined the 4th thresholding.
16. device as claimed in claim 9 is characterized in that, described channel quality parameter is Reference Signal Received Power or Reference Signal Received Quality parameter.
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| CN201510171083.5A CN104967505A (en) | 2010-05-04 | 2010-05-04 | Wireless communication method, apparatus and terminal |
| CN2010101740683A CN102238550A (en) | 2010-05-04 | 2010-05-04 | Method and device for configuring member carriers for terminal in carrier aggregation system |
| JP2011101702A JP5723206B2 (en) | 2010-05-04 | 2011-04-28 | Wireless communication method, apparatus and terminal |
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Also Published As
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| JP5723206B2 (en) | 2015-05-27 |
| JP2011239391A (en) | 2011-11-24 |
| CN104967505A (en) | 2015-10-07 |
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Application publication date: 20111109 |