CN101998611B - Power control information communication method and device for uplink carrier wave - Google Patents
Power control information communication method and device for uplink carrier waveDownload PDFInfo
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- CN101998611B CN101998611BCN 200910166504CN200910166504ACN101998611BCN 101998611 BCN101998611 BCN 101998611BCN 200910166504CN200910166504CN 200910166504CN 200910166504 ACN200910166504 ACN 200910166504ACN 101998611 BCN101998611 BCN 101998611B
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Abstract
Translated fromChinese
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of power control information communicating method and device of up-link carrier.
Background technology
At existing Long Term Evolution (Long Time Evolution, LTE) in the network, the base station is to subscriber equipment (User Equipment, UE) send through-put power control (Transmit Power Control, TPC) information, be used for adjusting physical uplink control channel (Physical Uplink Controlchannel, PUCCH) or physical uplink link sharing channel (Physical Uplink SharedChannel, PUSCH) transmitting power, power control information can be included in down link control information (Downlink Control Information, DCI) in, difference according to the Downlink Control Information content, the form of information is also different, and wherein DCI form 3/3A can be used for carrying above-mentioned power control information.
LTE is single-carrier system, and DCI form 3/3A only has a power contorl parameters for certain UE.Long Term Evolution strengthens (Long Time Evolution-Advanced, LTE-A) system is in order to support higher bandwidth, adopted carrier aggregation technology, it is the transmission that the LTE-A terminal can receive a plurality of descending carriers simultaneously, can send data at a plurality of up-link carriers simultaneously, a plurality of adjacent or non-conterminous narrow-bands can be integrated into a broadband.Carrier aggregation can be divided into again symmetrical carrier wave and asymmetric carrier wave according to the difference of up-downgoing carrier number, and symmetrical carrier wave refers to up identical with the descending carrier number, and asymmetric carrier wave refers to that the up-downgoing carrier number is different.
The power control of prior art is based on the UE granularity, also can be described as based on the carrier wave granularity, because each UE only has a up-link carrier, network distributes a power control index value for each UE (or each up-link carrier), parameter is adjusted in i.e. power control, because parameter is adjusted in the corresponding power control of a power control index value that distributes.
But in carrier aggregation scene, descending carrier is less than the asymmetric carrier aggregation of up-link carrier, when perhaps existing for the residential quarter in the system anchor point carrier wave of system information being provided, the PDCCH channel of a descending carrier need to carry the control information of a plurality of up-link carriers, so, only have the prior art of a power control parameters then can not finish for each up-link carrier at a PDCCH for each UE and carry out power control.
Summary of the invention
Embodiments of the invention provide a kind of power control information communicating method and device of up-link carrier, be used for solving multi-carrier aggregation scene, when the PDCCH of a descending carrier need to carry the control information of a plurality of up-link carriers, can't carry out respectively the problem that power control is adjusted to different up-link carriers.
A kind of power control method for sending information of up-link carrier is provided in order to solve the problems of the prior art embodiment of the invention, and the method comprises:
The power control information of all up-link carriers of at least one user equipment (UE) is placed same DCI information group, and the power control information that perhaps all UE of this residential quarter is had the up-link carrier of same carrier wave sign places at least one DCI information group;
Utilize the described DCI information of the Radio Network Temporary Identifier TPC-RNTI scrambling group of transmission power control, the power control index of TPC-RNTI and up-link carrier and the DCI information group after the scrambling are sent to UE.
Also provide a kind of base station in order to solve the problems of the prior art embodiment of the invention, this base station comprises:
Setting unit is used for the power control information of all up-link carriers of at least one UE is placed same DCI information group, and the power control information that perhaps all UE of this residential quarter is had the up-link carrier of same carrier wave sign places at least one DCI information group;
Scrambling unit utilizes the described DCI information of the Radio Network Temporary Identifier TPC-RNTI scrambling group of transmitting power control, and the power control index of TPC-RNTI and up-link carrier and the DCI information group after the scrambling are sent to UE by transmitting element.
A kind of power control message receiving method of up-link carrier also is provided in order to solve the problems of the prior art embodiment of the invention, and the method comprises:
Receive Radio Network Temporary Identifier TPC-RNTI and the power control index of up-link carrier and the DCI information group after the scrambling of transmission power control, utilize described TPC-RNTI that described DCI information group is carried out descrambling, in the wherein said DCI information group, the power control information of all up-link carriers of at least one UE places same DCI information group, and perhaps the power control information of the up-link carrier with same carrier wave sign of all UE places at least one DCI information group;
From described DCI information group, obtain the power control information of a plurality of up-link carriers according to the power control index of up-link carrier.
In order to solve the problems of the prior art, the embodiment of the invention also provides a kind of UE, and this UE comprises:
Receiving element is used for receiving Radio Network Temporary Identifier TPC-RNTI and the power control index of up-link carrier and the DCI information group after the scrambling of transmitting power control;
The descrambling unit, be used for utilizing described TPC-RNTI that described DCI information group is carried out descrambling, in the wherein said DCI information group, the power control information of all up-link carriers of at least one UE places same DCI information group, and perhaps the power control information of the up-link carrier with same carrier wave sign of all UE places at least one DCI information group;
Acquiring unit is for the power control information of obtaining a plurality of up-link carriers according to the power control index of up-link carrier from described DCI information group.
Compared with prior art, embodiments of the invention have the following advantages: UE passes down power control index in the message by receiving the base station, can in the DCI information group that receives, obtain the power control information of the different up-link carriers of this UE, to realize carrying out respectively power control for different up-link carriers.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Figure 1 shows that the power control method for sending information flow chart of embodiment of the invention up-link carrier;
Figure 2 shows that the first embodiment flow chart of the power control method for sending information of up-link carrier in the embodiment of the invention multi-carrier polymerizing;
Figure 3 shows that the second embodiment flow chart of the power control method for sending information of up-link carrier in the embodiment of the invention multi-carrier polymerizing;
Figure 4 shows that the 3rd embodiment flow chart of the power control method for sending information of up-link carrier in the embodiment of the invention multi-carrier polymerizing;
Figure 5 shows that the 4th embodiment flow chart of the power control method for sending information of up-link carrier in the embodiment of the invention multi-carrier polymerizing;
Figure 6 shows that the 5th embodiment flow chart of the power control method for sending information of up-link carrier in the embodiment of the invention multi-carrier polymerizing;
Figure 7 shows that the 6th embodiment flow chart of the power control method for sending information of up-link carrier in the embodiment of the invention multi-carrier polymerizing;
Figure 8 shows that the 7th embodiment flow chart of the power control method for sending information of up-link carrier in the embodiment of the invention multi-carrier polymerizing;
Figure 9 shows that the flow chart that the embodiment of the invention is carried out scrambling to DCI information group;
Figure 10 shows that embodiment of the invention architecture of base station figure;
Figure 11 shows that the power control message receiving method flow chart of embodiment of the invention up-link carrier;
Figure 12 shows that the power control message receiving method first embodiment flow chart of up-link carrier in the embodiment of the invention multi-carrier polymerizing;
Figure 13 shows that the power control message receiving method second embodiment flow chart of up-link carrier in the embodiment of the invention multi-carrier polymerizing;
Figure 14 shows that power control message receiving method the 3rd embodiment flow chart of up-link carrier in the embodiment of the invention multi-carrier polymerizing;
Figure 15 shows that power control message receiving method the 4th embodiment flow chart of up-link carrier in the embodiment of the invention multi-carrier polymerizing;
Figure 16 shows that power control message receiving method the 5th embodiment flow chart of up-link carrier in the embodiment of the invention multi-carrier polymerizing;
Figure 17 shows that power control message receiving method the 6th embodiment flow chart of up-link carrier in the embodiment of the invention multi-carrier polymerizing;
Figure 18 shows that power control message receiving method the 6th embodiment flow chart of up-link carrier in the embodiment of the invention multi-carrier polymerizing;
Figure 19 shows that the embodiment of the invention carries out the flow chart of descrambling to DCI information group;
Figure 20 shows that the structural representation of embodiment of the invention UE.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
Embodiments of the invention provide a kind of power control information communicating method and device of up-link carrier.
Be illustrated in figure 1 as the power control method for sending information flow chart of embodiment of the invention up-link carrier.
As one embodiment of the present of invention, place same DCI information group to comprise the power control information of all up-link carriers of at least one UE:
If remaining byte is not enough to place the power control information of all up-link carriers of UE in the DCI information group, then described remainder bytes is put sky, and the power control information of these all up-link carriers of UE is positioned in another DCI information group.
As one embodiment of the present of invention, when the power control information with all up-link carriers of at least one UE places same DCI information group,
The power control index of TPC-RNTI and up-link carrier and the DCI information group after the scrambling sent among the UE comprise: send a TPC-RNTI to UE, and be directed at least one corresponding relation of this UE up-link carrier and power control index.
By above-described embodiment, the carrier identification of up-link carrier is corresponding one by one with described power control information, and power control information and the corresponding relation of carrier identification are embodied in the corresponding of power control index and carrier identification.
As one embodiment of the present of invention, the up-link carrier power control information that the identical up-link carrier of having of all UE is identified places at least one DCI information group to comprise:
If described have the up-link carrier power control information of same carrier wave sign greater than the length of described DCI information group, then described up-link carrier power control information with same carrier wave sign is placed a plurality of DCI information groups, if described have the up-link carrier power control information of same carrier wave sign less than the length of described DCI information group, then put the remainder bytes of empty described DCI information group.
As one embodiment of the present of invention, when the up-link carrier power control information with same carrier wave sign with all UE places at least one DCI information group,
The power control index of TPC-RNTI and up-link carrier and the DCI information group after the scrambling sent among the UE comprise: send a plurality of TPC-RNTI to UE, and be directed to the power control index of the up-link carrier of this UE; This moment, carrier identification and the corresponding relation of power control information were embodied in the corresponding of carrier identification and a plurality of TPC-RNTI; Because for each DCI information group, the power control index is fixed, and knows the TPC-RNTI that carrier wave is corresponding, just can determine DCI information group, according to the power control index, just can obtain the corresponding power control information of up-link carrier.
Wherein, the power control information of the up-link carrier of a UE may be placed in a plurality of DCI information groups, the power control index of the up-link carrier in each DCI information group can indicate the power control information of some up-link carriers of a UE, so this UE needs a plurality of TPC-RNTI so that a plurality of DCI information of descrambling group, obtain the power control information of these all up-link carriers of UE.
As one embodiment of the present of invention, when the up-link carrier power control information with the identical up-link carrier sign of having of all UE places at least one DCI information group,
Send at least one TPC-RNTI to UE, and the power control index that is directed to this at least one up-link carrier of UE comprises:
Send a TPC-RNTI to UE, and be directed to the power control index of the up-link carrier of this UE;
With the DCI block transfer after the scrambling to comprising among the UE:
Utilize the DCI information group after specific subframe sends the described scrambling that belongs to different up-link carriers.
By above-described embodiment, utilize the numbering of specific sub-frame to distinguish up-link carrier, can pass down a plurality of TPC-RNTI, save transfer resource.
As one embodiment of the present of invention, when the up-link carrier power control information with the identical up-link carrier sign of having of all UE places at least one DCI information group,
Send at least one TPC-RNTI to UE, and the power control index that is directed to this at least one up-link carrier of UE comprises:
Send a TPC-RNTI to UE, and be directed to the power control index of the up-link carrier of this UE;
In utilizing the described DCI information of described TPC-RNTI scrambling group, also comprise:
Utilize the DCI information group at the power control information place that the TPC-RNTI corresponding with up-link carrier and carrier identification remove this carrier wave of scrambling.
By above-described embodiment, can pass down a plurality of TPC-RNTI, save transfer resource.
Two above-mentioned embodiment can combine, when the up-link carrier power control information with same carrier wave sign with all UE places at least one DCI information group,
In utilizing the described DCI information of described TPC-RNTI scrambling group, comprise: utilize described TPC-RNTI and the described DCI information of carrier identification scrambling group;
The power control index of TPC-RNTI and up-link carrier and the DCI information group after the scrambling sent among the UE comprise: send a TPC-RNTI to UE, and be directed to the power control index of the up-link carrier of this UE; Utilize the DCI information group after specific subframe sends the described scrambling that belongs to different up-link carriers.
Be illustrated in figure 2 as the first embodiment flow chart of the power control method for sending information of up-link carrier in the embodiment of the invention multi-carrier polymerizing.
The TPC-RNTI:16 bit strings,
Power control index (TPC-Index): m;
Wherein, TPC-RNTI is the character string of 16 bits, can also be other long character string, UE utilizes this TPC-RNTI descrambling DCI information group to obtain power control information, a described power control index is corresponding to one or minimum one maximum in many up-link carrier signs of this UE, usually the up-link carrier sign all is since 1 continuous natural number, and power control index m begins for from DCI information group who of the power control information of this UE of appointment, and m is natural number.In this example, the TPC-RNTI that sends to described 5 UE is respectively, and sends TPC-RNTI1 to UE1 to UE3, sends TPC-RNTI2 to UE4 and UE5.
Step 202, power control information appearance variation when the UE up-link carrier, then upgrade DCI information group, in this example, changing appears in the power control information of UE1 to UE5 up-link carrier, the base station is with 3 UE, UE1, the power control information of all up-link carriers of UE2 and UE3 places a DCI information group, with 2 UE, the power control information of all up-link carriers of UE4 and UE5 places the 2nd DCI information group, wherein, UE1 has 5 up-link carriers to be respectively CC1 to CC5, and UE2 has 4 up-link carriers to be respectively CC1 to CC4, and UE3 has 5 up-link carriers to be respectively CC1 to CC5, the one DCI information group has 14 can only place UE1, the power control information of all up-link carriers of UE2 and UE3 (namely indicating the power control parameters of UE control up-link carrier), as shown in table 1; The power control information that the 2nd DCI information group has only been placed all up-link carriers of UE4 and UE5, wherein UE4 has 5 up-link carriers to be respectively CC1 to CC5, and UE5 has 4 up-link carriers to be respectively CC1 to CC4, all puts sky for 5 of the back, with the pad sign, as shown in table 2 respectively:
Table 1: a DCI information group, use the TPC-RNTI1 scrambling
| UE1 CC1 | UE1 CC2 | UE1 CC3 | UE1 CC4 | UE1 CC5 | UE2 CC1 | UE2 CC2 | UE2 CC3 | UE2 CC4 | UE3 CC1 | UE3 CC2 | UE3 CC3 | UE3 CC4 | UE3 CC5 |
TPC-index 1 2 3 4 5 6 7 8 9 10 11 12 13 14
Table 2: the 2nd DCI information group: use the TPC-RNTI2 scrambling
| UE4 CC1 | UE4 CC2 | UE4 CC3 | UE4 CC4 | UE4 CC5 | UE5 CC1 | UE5 CC2 | UE5 CC3 | UE5 CC4 | pad | pad | pad | pad | pad |
TPC-index 1 2 3 4 5 6 7 8 9 10 11 12 13 14
In the DCI of described table 1 information group, UE1, the CC1 position has the power control information of the up-link carrier 1 of UE1, the content that represents in the DCI information group of back is also similar, and is same, in the DCI information group in the table 2, UE4, the CC1 position has the power control information of the up-link carrier 1 of UE4.
Wherein, the carrier identification of described up-link carrier is corresponding according to pre-defined rule with described power control information, corresponding according to pre-defined rule of carrier identification and power control information herein, be embodied in the corresponding one by one of carrier identification and power control index, this correspondence can be order correspondence or backward correspondence, when pre-defined rule is that order is at once, corresponding in many up-link carriers signs of this UE maximum one, acquiescence is carried out one by one corresponding with remaining carrier identification of successively decreasing the adjacent power control index that increases progressively with the power control index of described transmission; When pre-defined rule be backward at once, corresponding in many up-link carriers signs of this UE minimum one, acquiescence is carried out one by one corresponding with the remaining carrier identification that increases progressively the adjacent power control index that increases progressively with the power control index of described transmission; Power control information for each up-link carrier is positioned over the corresponding corresponding position of power control index according to described pre-defined rule in DCI information group.
Be illustrated in figure 3 as the second embodiment flow chart of the power control method for sending information of up-link carrier in the embodiment of the invention multi-carrier polymerizing.
Present embodiment and the first embodiment are similar, and something in common repeats no more, and only describe difference herein.
The TPC-RNTI:16 bit strings,
Power control index (TPC-Index): M1, M2 ... Mn;
Wherein TPC-RNTI is the character string of 16 bits, UE utilizes this TPC-RNTI descrambling DCI information group to obtain power control information, and described each power control index Mn is corresponding to the different up-link carrier of this UE, and this corresponding relation is preseted by base station and UE, wherein, M1 ... Mn is natural number.
Be illustrated in figure 4 as the 3rd embodiment flow chart of the power control method for sending information of up-link carrier in the embodiment of the invention multi-carrier polymerizing.
Present embodiment and the first embodiment are similar, and something in common repeats no more, and only describe difference herein.
The TPC-RNTI:16 bit strings,
Power control index (TPC-Index): M1: up-link carrier sign 1, M2: up-link carrier sign 2 ... Mn: up-link carrier sign n;
Wherein TPC-RNTI is the character string of 16 bits, and UE utilizes this TPC-RNTI descrambling DCI information group to obtain power control information, and described each power control index is corresponding to the different up-link carrier of this UE, and this corresponding relation is notified UE by the base station.
Be illustrated in figure 5 as the 4th embodiment flow chart of the power control method for sending information of up-link carrier in the embodiment of the invention multi-carrier polymerizing.
Present embodiment and the first embodiment are similar, and something in common repeats no more, and only describe difference herein.
The corresponding relation of NTI, power control index and UE up-link carrier sign, the corresponding relation of the TPC-RNTI of described transmission, power control index and up-link carrier sign is as follows:
The TPC-RNTI:16 bit strings,
Power control index (TPC-Index): M: up-link carrier sign;
Wherein TPC-RNTI is the character string of 16 bits, UE utilizes this TPC-RNTI descrambling DCI information group to obtain power control information, described power control index is corresponding to the up-link carrier of this UE, this corresponding relation is notified UE by the base station, power control index M begins for from DCI information group who of the power control information of specifying this UE, and the power control information of this correspondence is aimed at the corresponding up-link carrier of UE.
Maximum or the minimum carrier wave of TPC-Index of explicit description and this UE carrier identification is corresponding, UE is according to remaining up-link carrier number, select the adjacent TPC-Index of the same number of and above-mentioned TPC-Index according to descending or ascending order, carry out corresponding with remaining up-link carrier.
Be illustrated in figure 6 as the 5th embodiment flow chart of the power control method for sending information of up-link carrier in the embodiment of the invention multi-carrier polymerizing.
TPC-RNTI：TPC-RNTI1，…TPC-RNTIn；
Power control index (TPC-Index): m;
Wherein the number of TPC-RNTI is identical with the number of the shared DCI information of all up-link carriers of this UE group, TPC-RNTI1, TPC-RNTIn is 16 bit strings, UE utilizes a plurality of TPC-RNTI descrambling DCI information groups to obtain power control information, and described power control index m is for specifying the position of power control information in DCI information group of this UE.
Wherein, the up-link carrier number that has according to UE, UE is carried out prioritization, have the more UE of up-link carrier number, priority is higher, priority allocation power control index namely has the maximum UE of up-link carrier number, and its its power control index (TPC-index) that is assigned with of each up-link carrier place DCI information group is 1.Power control index in the group of same UE different carrier like this place is identical, and the base station only need send by RRC message the power control index of this UE to the UE in the residential quarter.
Table 3: a DCI information group, use the TPC-RNTI1 scrambling
| UE1 CC1 | UE2 CC1 | UE3 CC1 | UE4 CC1 | UE5 CC1 | UE6 CC1 | UE7 CC1 | UE8 CC1 | UE9 CC1 | UE10 CC1 | UE11 CC1 | UE12 CC1 | UE13 CC1 | UE14 CC1 |
TPC-index 1 2 3 4 5 6 7 8 9 10 11 12 13 14
Table 4: the 2nd DCI information group: use the TPC-RNTI2 scrambling
| UE15 CC1 | UE16 CC1 | UE17 CC1 | UE18 CC1 | UE19 CC1 | UE20 CC1 | UE21 CC1 | UE22 CC1 | UE23 CC1 | UE24 CC1 | pad | pad | pad | pad |
TPC-index 1 2 3 4 5 6 7 8 9 10 11 12 13 14
In this example, UE1 to UE13 has up-link carrier 2 (CC2), can be in the 3rd DCI information group write power control information to each UE up-link carrier 2 according to the number order of UE, because the 3rd DCI information group has 14, the power control information of the up-link carrier 2 of 13 UE, can in the 3rd DCI information group, write, the power control information of the up-link carrier 2 of UE1 to UE13 is write the 3rd DCI information group, remaining part is put sky in the 3rd DCI information group, with pad sign (as shown in table 5).
Table 5: the 3rd DCI information group: use the TPC-RNTI3 scrambling
| UE1 CC2 | UE2 CC2 | UE3 CC2 | UE4 CC2 | UE5 CC2 | UE6 CC2 | UE7 CC2 | UE8 CC2 | UE9 CC2 | UE10 CC2 | UE11 CC2 | UE12 CC2 | UE13 CC2 | pad |
TPC-index 1 2 3 4 5 6 7 8 9 10 11 12 13 14
In this example, UE1 to UE10 has up-link carrier 3 (CC3), can be in the 4th DCI information group write power control information to each UE up-link carrier 3 according to the number order of UE, because the 4th DCI information group has 14, the power control information of the up-link carrier 3 of 10 UE can write in the 4th DCI information group, the power control information of the up-link carrier 3 of UE1 to UE10 is write the 4th DCI information group, and remaining part is put sky in the 4th DCI information group, with pad sign (as shown in table 6).Wherein, this moment, carrier identification was corresponding according to pre-defined rule with power control information, was embodied in the corresponding of carrier identification and a plurality of TPC-RNTI; Because for each DCI information group, the power control index is fixed, and knows the TPC-RNTI that carrier identification is corresponding, just can determine DCI information group, according to the power control index, just can obtain the corresponding power control information of up-link carrier.
Table 6: the 4th DCI information group: use the TPC-RNTI4 scrambling
| UE1 CC3 | UE2 CC3 | UE3 CC3 | UE4 CC3 | UE5 CC3 | UE6 CC3 | UE7 CC3 | UE8 CC3 | UE9 CC3 | UE10 CC3 | pad | pad | pad | pad |
TPC-index 1 2 3 4 5 6 7 8 9 10 11 12 13 14
Be illustrated in figure 7 as the 6th embodiment flow chart of the power control method for sending information of up-link carrier in the embodiment of the invention multi-carrier polymerizing.
Present embodiment and the 5th embodiment are similar, and something in common repeats no more, and only describe difference herein.
The TPC-RNTI:16 bit strings,
Power control index (TPC-Index): m;
Wherein TPC-RNTI is the character string of 16 bits, and UE utilizes this TPC-RNTI descrambling DCI information group to obtain power control information, and described power control index m is for specifying the position of power control information in DCI information group of this UE.
Be illustrated in figure 8 as the 7th embodiment flow chart of the power control method for sending information of up-link carrier in the embodiment of the invention multi-carrier polymerizing.
Present embodiment and the 5th embodiment are similar, and something in common repeats no more, and only describe difference herein.
The TPC-RNTI:16 bit strings,
Power control index (TPC-Index): m;
Wherein TPC-RNTI is the character string of 16 bits, and described power control index m is for specifying the position of power control information in DCI information group of this UE.
Step 803, the base station utilizes TPC-RNTI that DCI information group is carried out in the scrambling step, the base station utilizes same TPC-RNTI and from the corresponding up-link carrier of DCI information group sign different DCI information groups is carried out scrambling, the method that for example can adopt the embodiment of the invention as shown in Figure 9 that DCI information group is carried out scrambling, when the one DCI information group is carried out scrambling, the one DCI information group is carried out CRC (CRC), obtain original CRC check bit, use the check bit of TPC-RNTI and 1 pair of DCI information group of up-link carrier to carry out scrambling, utilize first TPC-RNTI that the CRC check bit is carried out scrambling, generate the first scrambling result, and then utilize the sign (being up-link carrier 1) of up-link carrier that above-mentioned the first scrambling result is carried out scrambling, generate at last the CRC check bit after the scrambling, with the CRC check bit after the described scrambling and a DCI block transfer to UE; Similarly, when second group of DCI information group carried out scrambling, use TPC-RNTI and up-link carrier 1 to carry out scrambling; When the 3rd group of DCI information group carried out scrambling, use TPC-RNTI and up-link carrier 2 to carry out scrambling; When the 4th group of DCI information group carried out scrambling, use TPC-RNTI and up-link carrier 3 to carry out scrambling.After the DCI information group after UE receives above-mentioned scrambling, certain up-link carrier that utilizes TPC-RNTI and this UE to have identifies to unite and carries out descrambling, thereby obtain to belong to the DCI information group of this UE, thereby can obtain the power control information that descrambling goes out and belong to which up-link carrier, so just do not need the corresponding relation of extra indication carrier wave and power control information, thereby can save descending transmission resource.The process of the CRC check bit after the above-mentioned acquisition scrambling is a kind of in the embodiment of the invention, scrambling mode, order can have various deformation, for example utilize first the sign of up-link carrier that the CRC check bit is carried out scrambling, generate the first scrambling result, and then utilize TPC-RNTI that the first scrambling result is carried out scrambling, thereby obtain the CRC check bit after the scrambling.
The scrambling descrambling process here is a kind of mode, can also TPC-RNTI with the carrier identification scrambling of joining together, need not carry out in two steps, in a word scrambling process is compared with existing scrambling process, increase carrier identification information, thereby can just know from the descrambling process corresponding relation of carrier wave and power control information.
Be embodiment of the invention architecture of base station figure as shown in figure 10.
Comprise settingunit 1001, scramblingunit 1002, transmittingelement 1003.
Describedsetting unit 1001 is used for the power control information of all up-link carriers of at least one UE is placed same DCI information group, and the power control information that perhaps all UE of this residential quarter is had the up-link carrier of same carrier wave index places at least one DCI information group.Wherein said TPC-RNTI is used for the corresponding DCI information of UE descrambling group.
Described scramblingunit 1002 utilizes the described DCI information of the Radio Network Temporary Identifier TPC-RNTI scrambling group of transmitting power control, and the power control index of TPC-RNTI and up-link carrier and the DCI information group after the scrambling are sent to UE by transmittingelement 1003.
As one embodiment of the present of invention, described scramblingunit 1002 can also utilize the TPC-RNTI corresponding with up-link carrier and carrier identification to go the DCI information group at the power control information place of this carrier wave of scrambling.
Pass through above-described embodiment, the base station is by sending up-link carrier power control index information and DCI information group corresponding to different up-link carriers to UE, can be implemented in base station in the LTE-A system carrier aggregation and send the power control information of all up-link carriers to UE, so that up-link carrier in the carrier aggregation is carried out power control.
As the first embodiment that is embodiment of the invention base station.
Transmitting element sends this UE corresponding a TPC-RNTI and a power control index by RRC message to the UE in the residential quarter, and the TPC-RNTI of described transmission and a power control index are as follows:
The TPC-RNTI:16 bit strings,
Power control index (TPC-Index): m;
Wherein TPC-RNTI is the character string of 16 bits, UE utilizes this TPC-RNTI descrambling DCI information group to obtain power control information, a described power control index is corresponding to one or minimum one maximum in many up-link carrier signs of this UE, usually the up-link carrier sign all is since 1 continuous natural number, power control index m begins for from DCI information group who of the power control information of specifying this UE, and m is natural number.In this example, the TPC-RNTI that sends to described 5 UE is respectively, and sends TPC-RNTI1 to UE1 to UE3, sends TPC-RNTI2 to UE4 and UE5.
When the power control information appearance variation of UE up-link carrier, updating block upgrades DCI information group.In this example, changing appears in the power control information of UE1 to UE5 up-link carrier, updating block is with 3 UE, UE1, the power control information of all up-link carriers of UE2 and UE3 places a DCI information group, with 2 UE, the power control information of all up-link carriers of UE4 and UE5 places the 2nd DCI information group, wherein, UE1 has 5 up-link carriers to be respectively CC1 to CC5, UE2 has 4 up-link carriers to be respectively CC1 to CC4, UE3 has 5 up-link carriers to be respectively CC1 to CC5, the one DCI information group has 14 can only place UE1, the power control information of all up-link carriers of UE2 and UE3 (namely indicating the power control parameters of UE control up-link carrier), last position is empty, and is with the pad sign, as shown in table 1; The power control information that the 2nd DCI information group has only been placed all up-link carriers of UE4 and UE5, wherein UE4 has 5 up-link carriers to be respectively CC1 to CC5, UE5 has 4 up-link carriers to be respectively CC1 to CC4, all put sky for 6 of the back, identify with pad respectively, as shown in table 2, the carrier identification of described up-link carrier is corresponding according to pre-defined rule with described power control information.
Wherein, the carrier identification of described up-link carrier is corresponding according to pre-defined rule with described power control information, corresponding according to pre-defined rule of carrier identification and power control information herein, be embodied in the corresponding one by one of carrier identification and power control index, this correspondence can be ascending order order correspondence or backward correspondence, when pre-defined rule is that order is at once, corresponding in many up-link carriers signs of this UE maximum one, acquiescence is carried out one by one corresponding with remaining carrier identification of successively decreasing the adjacent power control index that increases progressively with the power control index of described transmission; When pre-defined rule be backward at once, corresponding in many up-link carriers signs of this UE minimum one, acquiescence is carried out one by one corresponding with the remaining carrier identification that increases progressively the adjacent power control index that increases progressively with the power control index of described transmission; Power control information for each carrier wave is positioned over the corresponding corresponding position of power control index according to the described pre-defined rule rule of correspondence in DCI information group.
Scrambling unit utilizes TPC-RNTI that the one DCI information group is carried out scrambling, utilize TPC-RNTI2 that the 2nd DCI information group is carried out scrambling, then the DCI information group after the scrambling and the 2nd DCI information group are sent to UE all in the residential quarter by transmitting element, send an above-mentioned DCI information group and the 2nd DCI information group to 5 UE in this example.
The second embodiment as embodiment of the invention base station:
Transmitting element sends a plurality of TPC-RNTI corresponding to this UE and a power control index by RRC message to the UE in the residential quarter, and the TPC-RNTI of described transmission and power control index are as follows:
TPC-RNTI：TPC-RNTI1，…TPC-RNTIn；
Power control index (TPC-Index): m;
Wherein the number of TPC-RNTI is identical with the number of the shared DCI information of all up-link carriers of this UE group, TPC-RNTI1, TPC-RNTIn is 16 bit strings, UE utilizes a plurality of TPC-RNTI descrambling DCI information groups to obtain power control information, and described power control index m is for specifying the position of power control information in DCI information group of this UE.
Power control information appearance variation when the UE up-link carrier, updating block upgrades DCI information group, in this example, changing appears in the power control information of UE1 to UE24 up-link carrier, 24 UE have up-link carrier 1 (CC1), updating block can be in a DCI information group writes power control information to each UE up-link carrier 1 according to the number order of UE, because a DCI information group only has 14, the power control information of the up-link carrier 1 of 24 UE can't write in a DCI information group fully, then the power control information with the up-link carrier 1 of UE1 to UE14 writes a DCI information group (as shown in table 3), power control information with the up-link carrier 1 of remaining UE15 to UE24 writes the 2nd DCI information group again, remaining part is put sky in the 2nd DCI information group, with pad sign (as shown in table 4).
In this example, UE1 to UE13 has up-link carrier 2 (CC2), updating block can be in the 3rd DCI information group writes power control information to each UE up-link carrier 2 according to the number order of UE, because the 3rd DCI information group has 14, the power control information of the up-link carrier 2 of 13 UE can write in the 3rd DCI information group, the power control information of the up-link carrier 2 of UE1 to UE13 is write the 3rd DCI information group, remaining part is put sky in the 3rd DCI information group, with pad sign (as shown in table 5).
In this example, UE1 to UE10 has up-link carrier 3 (CC3), updating block can be in the 4th DCI information group writes power control information to each UE up-link carrier 3 according to the number order of UE, because the 4th DCI information group has 14, the power control information of the up-link carrier 3 of 10 UE can write in the 4th DCI information group, the power control information of the up-link carrier 3 of UE1 to UE10 is write the 4th DCI information group, remaining part is put sky in the 4th DCI information group, with pad sign (as shown in table 6), the carrier identification of described up-link carrier is corresponding according to pre-defined rule with described power control information.
Wherein, this moment, carrier identification was corresponding according to pre-defined rule with power control information, was embodied in the corresponding of carrier identification and a plurality of TPC-RNTI; Because for each DCI information group, the power control index is fixed, and knows the TPC-RNTI that carrier identification is corresponding, just can determine DCI information group, according to the power control index, just can obtain the corresponding power control information of up-link carrier.
Scrambling unit utilizes TPC-RNTI1 that the one DCI information group is carried out scrambling, utilize TPC-RNTI2 that the 2nd DCI information group is carried out scrambling, utilize TPC-RNTI3 that the 3rd DCI information group is carried out scrambling, utilize TPC-RNTI4 that the 4th DCI information group is carried out scrambling, then the DCI information group after the scrambling, the 2nd DCI information group, the 3rd DCI information group and the 4th DCI information group are sent to UE all in the residential quarter, send an above-mentioned DCI information group, the 2nd DCI information group, the 3rd DCI information group and the 4th DCI information group to 24 UE in this example.
As one embodiment of the present of invention, described scrambling unit can also utilize same TPC-RNTI and from the corresponding up-link carrier of DCI information group sign different DCI information groups be carried out scrambling, in the time of for example can carrying out scrambling to a DCI information group, use CRC (CRC) bit of TPC-RNTI and 1 pair of DCI information group of up-link carrier to carry out scrambling, utilize first TPC-RNTI that the CRC check bit is carried out scrambling, generate the first scrambling result, and then utilize the sign (being up-link carrier 1) of up-link carrier that above-mentioned the first scrambling result is carried out scrambling, generate at last the CRC check bit after the scrambling, with the CRC check bit after the described scrambling and a DCI block transfer to UE; Similarly, when second group of DCI information group carried out scrambling, use TPC-RNTI and up-link carrier 1 to carry out scrambling; When the 3rd group of DCI information group carried out scrambling, use TPC-RNTI and up-link carrier 2 to carry out scrambling; When the 4th group of DCI information group carried out scrambling, use TPC-RNTI and up-link carrier 3 to carry out scrambling.After the DCI information group after UE receives above-mentioned scrambling, certain up-link carrier that utilizes TPC-RNTI and this UE to have identifies to unite and carries out descrambling, thereby obtain to belong to the DCI information group of this UE, thereby can obtain the power control information that descrambling goes out and belong to which up-link carrier, so just do not need the corresponding relation of extra indication carrier wave and power control information, thereby can save descending transmission resource.The process of the CRC check bit after the above-mentioned acquisition scrambling is a kind of in the embodiment of the invention, scrambling mode, order can have various deformation, for example utilize first the sign of up-link carrier that the CRC check bit is carried out scrambling, generate the first scrambling result, and then utilize TPC-RNTI that the first scrambling result is carried out scrambling, thereby obtain the CRC check bit after the scrambling.
The scrambling descrambling process here is a kind of mode, can also TPC-RNTI with the carrier identification scrambling of joining together, need not carry out in two steps, in a word scrambling process is compared with existing scrambling process, increase carrier identification information, thereby can just know from the descrambling process corresponding relation of carrier wave and power control information.
Be the power control message receiving method flow chart of embodiment of the invention up-link carrier as shown in figure 11.
As one embodiment of the present of invention, in the power control index of described reception TPC-RNTI and up-link carrier, when the power control information of all up-link carriers of at least one UE places same DCI information group, and received the power control index of a TPC-RNTI and a up-link carrier;
Described power control index according to up-link carrier obtains a plurality of up-link carriers from described DCI information group power control information comprises:
According to a described power control index, the position of the described power control index indication in described DCI information group obtains power control information;
According to the above-mentioned power control information of obtaining, obtain the power control information of all up-link carriers according to predetermined order.
As one embodiment of the present of invention, in the power control index of described reception TPC-RNTI and up-link carrier, when the power control information of all up-link carriers of at least one UE places same DCI information group, and received the power control index of a TPC-RNTI and a plurality of up-link carriers;
Described power control index according to up-link carrier obtains a plurality of up-link carriers from described DCI information group power control information comprises:
According to a plurality of described power control index, the position of the described power control index indication in described DCI information group obtains the power control information of a plurality of up-link carriers.
As one embodiment of the present of invention, in the power control index of described reception TPC-RNTI and up-link carrier, when the power control information of all up-link carriers of at least one UE places same DCI information group, and received the corresponding relation of each up-link carrier of TPC-RNTI, UE and corresponding power control index;
Described power control index according to up-link carrier obtains a plurality of up-link carriers from described DCI information group power control information comprises:
According to a plurality of described corresponding relations, the position of the described power control index indication in described DCI information group obtains the power control information of the up-link carrier corresponding with described power control index.
As one embodiment of the present of invention, in the power control index of described reception TPC-RNTI and up-link carrier, when the power control information of all up-link carriers of at least one UE places same DCI information group, and the corresponding relation of the up-link carrier that has received TPC-RNTI, a UE and corresponding power control index;
Described power control index according to up-link carrier obtains a plurality of up-link carriers from described DCI information group power control information comprises:
According to a described corresponding relation, the position of the described power control index indication in described DCI information group obtains the power control information of the up-link carrier corresponding with described power control index;
According to the above-mentioned power control information of obtaining, obtain the power control information of all up-link carriers according to predetermined order.
As one embodiment of the present of invention, in the power control index of described reception TPC-RNTI and up-link carrier, when the power control information of the up-link carrier with same carrier wave sign of all UE places at least one DCI information group, and a plurality of TPC-RNTI and a power control index have been received;
Utilizing described TPC-RNTI that described DCI information group is carried out comprising in the descrambling: to utilize a plurality of TPC-RNTI that receive that a plurality of corresponding described DCI information groups are carried out descrambling;
Described power control index according to up-link carrier obtains a plurality of up-link carriers from described DCI information group power control information comprises:
According to a described power control index, the position of the described power control index indication in a plurality of described DCI information groups obtains power control information.
Wherein, the power control information of the up-link carrier of a UE may be placed in a plurality of DCI information groups, the power control index of the up-link carrier in each DCI information group can indicate the power control information of some up-link carriers of a UE, so this UE needs a plurality of TPC-RNTI so that a plurality of DCI information of descrambling group, obtain the power control information of these all up-link carriers of UE.
As one embodiment of the present of invention, in the power control index of described reception TPC-RNTI and up-link carrier, when the power control information of the up-link carrier with same carrier wave sign of all UE places at least one DCI information group, and a TPC-RNTI and a power control index have been received;
In receiving DCI information group, from specific sub-frame, obtain described DCI information group;
Utilizing described TPC-RNTI that described DCI information group is carried out comprising in the descrambling: to utilize a TPC-RNTI who receives that a plurality of corresponding described DCI information groups are carried out descrambling;
Described power control index according to up-link carrier obtains a plurality of up-link carriers from described DCI information group power control information comprises:
According to a described power control index, the position of the described power control index indication in a plurality of described DCI information groups obtains power control information, determines the corresponding up-link carrier index of described power control information according to the numbering of described specific sub-frame.
By above-described embodiment, utilize the difference of subframe to distinguish up-link carrier, UE can receive a TPC-RNTI and power control index, saves to receive resource.
As one embodiment of the present of invention, in the power control index of described reception TPC-RNTI and up-link carrier, when the power control information of the up-link carrier with same carrier wave sign of all UE places at least one DCI information group, and a TPC-RNTI and a power control index have been received;
Utilizing described TPC-RNTI that described DCI information group is carried out comprising in the descrambling: to utilize the TPC-RNTI and the carrier identification that receive that a plurality of corresponding described DCI information groups are carried out descrambling;
Described power control index according to up-link carrier obtains a plurality of up-link carriers from described DCI information group power control information comprises:
According to a described power control index, the position of the described power control index indication in a plurality of described DCI information groups obtains power control information.
Be the power control message receiving method first embodiment flow chart of up-link carrier in the embodiment of the invention multi-carrier polymerizing as shown in figure 12.
The TPC-RNTI of described transmission and a power control index are as follows:
The TPC-RNTI:16 bit strings,
Power control index (TPC-Index): m.
Described DCI information parts not as shown in Table 1 and Table 2, the method for reseptance of this example explanation UE1.
Be the power control message receiving method second embodiment flow chart of up-link carrier in the embodiment of the invention multi-carrier polymerizing as shown in figure 13.
Present embodiment and the first embodiment are similar, and something in common repeats no more, and only describe difference herein.
The TPC-RNTI of described transmission and power control index are as follows:
The TPC-RNTI:16 bit strings,
Power control index (TPC-Index): M1, M2 ... Mn.
Be power control message receiving method the 3rd embodiment flow chart of up-link carrier in the embodiment of the invention multi-carrier polymerizing as shown in figure 14.
Present embodiment and the first embodiment are similar, and something in common repeats no more, and only describe difference herein.
The corresponding relation of the TPC-RNTI of described transmission, a plurality of power control index and up-link carrier sign is as follows:
The TPC-RNTI:16 bit strings,
Power control index (TPC-Index): M1: up-link carrier sign 1, M2: up-link carrier sign 2 ... Mn: up-link carrier sign n.
Be power control message receiving method the 4th embodiment flow chart of up-link carrier in the embodiment of the invention multi-carrier polymerizing as shown in figure 15.
Present embodiment and the first embodiment are similar, and something in common repeats no more, and only describe difference herein.
Step 1501 receives the corresponding relation of up-link carrier of TPC-RNTI, a UE and corresponding power control index.
The corresponding relation of the TPC-RNTI of described transmission, power control index and up-link carrier sign is as follows:
The TPC-RNTI:16 bit strings,
Power control index (TPC-Index): M: up-link carrier sign.
What in this example, M was that the power control index is that 1 position places in 1, the DCI information group is the power control information of CC1.
Step 1503 according to a described corresponding relation, is obtained power control information with the corresponding up-link carrier of described power control index according to the position of the described power control index indication of pre-defined rule in described DCI information group.In this example, this corresponding relation is base station notice UE, directly notifies the corresponding relation of some power control information and up-link carrier in the DCI information group behind the UE descrambling.
Step 1504 according to the above-mentioned power control information of obtaining, according to predetermined order, for example is the power control information that order or backward are obtained the whole up-link carriers of UE1.In this example, described predesigned order because power control index 1 is starting point and corresponding CC1, is then got power control index 2 corresponding CC2, by that analogy for obtain 5 the up-link carrier power control information of the UE1 the DCI information group from CC1 to CC5 order successively; As optionally, if power control index 1 is starting point and corresponding CC5, then backward is got power control index 2 corresponding CC4 successively, by that analogy, obtains 5 the up-link carrier power control information of the UE1 in the DCI information group.
Be power control message receiving method the 5th embodiment flow chart of up-link carrier in the embodiment of the invention multi-carrier polymerizing as shown in figure 16.
The TPC-RNTI of described transmission and power control index are as follows:
TPC-RNTI：TPC-RNTI1，…TPC-RNTIn；
Power control index (TPC-Index): m.
Method of reseptance in this example refers to UE1, described DCI information parts not such as table 3 to shown in the table 6, UE
1 utilizes 3 TPC-RNTI respectively descrambling the one DCI information group, the 3rd DCI information group and the 4th DCI information group.
By said method, UE can obtain the power control information of all up-link carriers of this UE1 in different DCI information groups.
Be power control message receiving method the 6th embodiment flow chart of up-link carrier in the embodiment of the invention multi-carrier polymerizing as shown in figure 17.
Present embodiment and the 5th embodiment are similar, and something in common repeats no more, and only describe difference herein.
The TPC-RNTI of described transmission and power control index are as follows:
The TPC-RNTI:16 bit strings,
Power control index (TPC-Index): m.
Be power control message receiving method the 6th embodiment flow chart of up-link carrier in the embodiment of the invention multi-carrier polymerizing as shown in figure 18.
Present embodiment and the 5th embodiment are similar, and something in common repeats no more, and only describe difference herein.
Step 1801 receives a TPC-RNTI and a power control index.
The TPC-RNTI of described transmission and power control index are as follows:
The TPC-RNTI:16 bit strings,
Power control index (TPC-Index): m.
Step 1802 utilizes the TPC-RNTI and the up-link carrier sign that receive that a plurality of corresponding described DCI information groups are carried out descrambling.
For example, can carry out as shown in figure 19 the flow chart of descrambling to DCI information group for the embodiment of the invention, reference table 3 is to the DCI information group of table 6, when the one DCI information group is carried out descrambling, use the CRC check bit of TPC-RNTI and 1 pair of DCI information group of up-link carrier to carry out descrambling, utilize first the sign (being up-link carrier 1) of up-link carrier that the CRC check bit is carried out descrambling, generate the first descrambling result, and then utilize TPC-RNTI that above-mentioned the first descrambling result is carried out descrambling, generate at last the CRC check bit behind the descrambling, above-mentioned descrambling the time, the one DCI information group is carried out CRC to be calculated, generate the CRC check bit, whether the CRC check bit behind the more described descrambling is identical with the CRC check bit of generation, if the same this UE has the up-link carrier in the DCI information group, if not identical then this UE does not have the up-link carrier in the DCI information group; Similarly, when second group of DCI information group carried out descrambling, use TPC-RNTI and up-link carrier 1 to carry out descrambling; When the 3rd group of DCI information group carried out descrambling, use TPC-RNTI and up-link carrier 2 to carry out descrambling; When the 4th group of DCI information group carried out descrambling, use TPC-RNTI and up-link carrier 3 to carry out descrambling.Thus, UE can obtain the power control information that descrambling goes out and belong to which up-link carrier, can save so descending transmission resource.The process of above-mentioned descrambling CRC check bit is a kind of in the embodiment of the invention, descrambling mode, order can have various deformation, for example utilize first the sign of up-link carrier that the CRC check bit is carried out descrambling, generate the first descrambling result, and then utilize TPC-RNTI that the first descrambling result is carried out descrambling, thereby obtain the CRC check bit behind the descrambling.
The descrambling process here is a kind of mode, can also TPC-RNTI with the carrier identification descrambling of joining together, need not carry out in two steps descrambling, adopt the descrambling process of above-described embodiment to compare with descrambling process of the prior art, increase carrier identification information, can know from the descrambling process corresponding relation of carrier identification and power control information.
Be the structural representation of embodiment of the invention UE as shown in figure 20.
Comprise receivingelement 2001, descramblingunit 2002, acquiringunit 2003.
Described receivingelement 2001 is used for receiving the power control index of at least one TPC-RNTI and at least one up-link carrier, and receives DCI information group.
Acquiringunit 2003 is used for the pre-defined rule according to described power control information and carrier identification, obtains the power control information of up-link carrier from described DCI information group.
By above-described embodiment, in multi-carrier aggregation system, UE can obtain the power control information of up-link carrier from descending carrier, thereby finishes the power control to a plurality of up-link carriers.
The first embodiment as embodiment of the invention UE.
Receiving element receives the power control index of a TPC-RNTI and a up-link carrier.
The TPC-RNTI of described transmission and a power control index are as follows:
The TPC-RNTI:16 bit strings,
Power control index (TPC-Index): m.
This receiving element also receives DCI information group, and the described TPC-RNTI of descrambling unit by using carries out descrambling to described DCI information group.
Described DCI information parts not as shown in Table 1 and Table 2, the UE in this example refers to UE1.
Acquiring unit, be used for the pre-defined rule according to described power control information and carrier identification, from described DCI information group, obtain the power control information of up-link carrier: comprise specifically that according to a described power control index position of the described power control index indication in described DCI information group obtains power control information.In this example, the power control index is 1, has namely obtained the power control information of CC1 in the table 1.
Acquiring unit obtains the power control information of the whole up-link carriers of UE1 also according to the above-mentioned power control information of obtaining according to predetermined order.In this example, described predesigned order is starting point and corresponding CC1 for obtain 5 the up-link carrier power control information of the UE1 the DCI information group from CC1 to CC5 order from power control index 1, gets successively power control index 2 corresponding CC2, by that analogy; As optionally, described predesigned order can also be for being starting point and corresponding CC5 from power control index 1, and backward is got power control index 2 corresponding CC4 successively, by that analogy, obtains 5 the up-link carrier power control information of the UE1 in the DCI information group.
The second embodiment as embodiment of the invention UE.
Receiving element receives a plurality of TPC-RNTI and a power control index.
The TPC-RNTI of described transmission and power control index are as follows:
TPC-RNTI：TPC-RNTI1，…TPC-RNTIn；
Power control index (TPC-Index): m.
Described receiving element also receives DCI information group, and a plurality of described TPC-RNTI of descrambling unit by using carry out descrambling to corresponding described DCI information group.
UE in this example refers to UE1, described DCI information parts not such as table 3 to shown in the table 6, UE1 utilizes 3 TPC-RNTI respectively descrambling the one DCI information group, the 3rd DCI information group and the 4th DCI information groups.
Acquiring unit, according to a described power control index, a position of indicating according to the described power control index of pre-defined rule in a plurality of described DCI information groups obtains power control information.In this example, described pre-defined rule can be the power control information that 1 position obtains the up-link carrier 1 of UE1 for the power control index in a DCI information group of order, the power control index of the 3rd DCI information group is the power control information of obtaining the up-link carrier 2 of UE1 on 1 the position, and the power control index of the 4th DCI information group is the power control information of obtaining the up-link carrier 3 of UE1 on 1 the position.
The beneficial effect of the embodiment of the invention is, in multi-carrier aggregation system, by in descending carrier, sending all up-link carrier power control information of power control index and UE, realized the purpose of base station control UE up-link carrier power, and the resource that can save descending carrier by several send modes and receive mode.
One of ordinary skill in the art will appreciate that all or part of flow process that realizes in above-described embodiment method, can come the relevant hardware of instruction to finish by computer program, described program can be stored in the computer read/write memory medium, this program can comprise the flow process such as the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-Only Memory, ROM) or store-memory body (Random Access Memory, RAM) etc. at random.
Above-described embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above only is the specific embodiment of the present invention; the protection range that is not intended to limit the present invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (14)
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| CN 200910166504CN101998611B (en) | 2009-08-11 | 2009-08-11 | Power control information communication method and device for uplink carrier wave |
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| CN 200910166504CN101998611B (en) | 2009-08-11 | 2009-08-11 | Power control information communication method and device for uplink carrier wave |
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