WO2016070357A1 - Procédé d'agrégation de porteuses en liaison montante et station de base - Google Patents

Procédé d'agrégation de porteuses en liaison montante et station de base Download PDF

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Publication number
WO2016070357A1
WO2016070357A1 PCT/CN2014/090335 CN2014090335W WO2016070357A1 WO 2016070357 A1 WO2016070357 A1 WO 2016070357A1 CN 2014090335 W CN2014090335 W CN 2014090335W WO 2016070357 A1 WO2016070357 A1 WO 2016070357A1
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Prior art keywords
transmit power
carrier group
adjusted
aggregated
scc
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PCT/CN2014/090335
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English (en)
Chinese (zh)
Inventor
薛怀杰
方旻曦
彭炳光
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华为技术有限公司
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Priority to CN201480036729.2A priority Critical patent/CN105766033B/zh
Priority to PCT/CN2014/090335 priority patent/WO2016070357A1/fr
Publication of WO2016070357A1 publication Critical patent/WO2016070357A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/34—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method and a base station for uplinking a carrier.
  • Carrier Aggregation is a technology that aggregates at least two Component Carriers (CCs) to achieve a larger transmission bandwidth.
  • CCs Component Carriers
  • the user equipment User Equipment, UE
  • the actual total transmit power of the uplink aggregated carrier is calculated according to the parameter sent by the base station (the actual calculation method of the actual total transmit power refers to the 3GPP TS 36.213 protocol 5.1). Section .1)
  • the UE allocates the actual transmit power to each CC aggregated on the uplink aggregated carrier according to the calculated actual total transmit power. It can be understood that the farther the UE is from the base station, the more power the uplink carrier loses during transmission, and the greater the total actual transmission power required to transmit the uplink carrier.
  • the maximum transmit power of the UE is rated, for example, 23 dBm.
  • the uplink aggregated carrier technology is used to implement data transmission from the UE to the base station, the aggregation of multiple CCs into one uplink aggregated carrier consumes a part of the transmit power, which is far away from the base station.
  • the total transmit total power required by the UE to transmit the uplink aggregated carrier is greater than the maximum transmit power of the UE.
  • the UE reduces the actual transmit power allocated to each CC on the uplink aggregated carrier, which reduces the uplink aggregated carrier transmitted by the UE.
  • the data transmission efficiency of each CC is further reduced, and the throughput of the uplink data transmission of the UE is further reduced.
  • the embodiment of the present invention provides a method for aggregating a carrier in the uplink and a base station, so that when the total transmit power required by the UE to transmit the uplink aggregated carrier is greater than the maximum transmit power of the UE, the CC on the uplink aggregate carrier is reduced.
  • a first aspect of the embodiments of the present invention provides a method for uplink aggregation carrier, which is applied to a base station, and
  • the user equipment UE is configured with a plurality of secondary carriers SCC, the primary carrier of the UE and the multiple SCCs are used as the component carrier CC of the UE, and the method includes:
  • Selecting at least one SCC from the plurality of SCCs of the UE, the primary carrier of the UE and the at least one SCC comprise an aggregated carrier group, the primary carrier and the at least one SCC serving as a CC of the aggregated carrier group;
  • the preset adjustment rule is selected to adjust the CC in the aggregated carrier group, where the preset adjustment rule includes reducing the number of SCCs in the aggregated carrier group and/or Reducing the PUSCH bandwidth of at least one SCC;
  • the calculating, according to the ePHR information, the total transmit power required by the UE when all CCs in the aggregated carrier group are aggregated includes:
  • the selecting at least one SCC from the multiple SCCs of the UE, the primary carrier of the UE and the at least one SCC comprise an aggregated carrier group include:
  • the preset adjustment rule is to reduce the number of SCCs in the aggregated carrier group, and the selecting a preset adjustment rule to adjust the aggregate carrier group
  • the CCs in the include:
  • selecting a first adjusted carrier group corresponding to a first total adjusted transmit power that is not greater than a maximum transmit power of the UE is used as the adjusted Aggregated carrier group.
  • the preset adjustment rule is to reduce a PUSCH bandwidth of at least one SCC in the aggregated carrier group, where the preset preset adjustment rule adjusts the aggregation
  • the CCs in the carrier group include:
  • the second total adjusted transmit power is greater than the maximum transmit power of the UE, deleting the PUSCH bandwidth of the first preset ratio of the SCC with the largest PUSCH bandwidth in the second adjusted carrier group to obtain a new first Adjusting the carrier group, and returning to calculate the total transmit power required by the UE when all CCs in the second adjusted carrier group are calculated as the second total adjusted transmit power;
  • the second adjusted carrier group is selected as the adjusted aggregate carrier group.
  • the preset adjustment rule is to reduce the number of SCCs in the aggregated carrier group and reduce the PUSCH bandwidth of the at least one SCC, where the preset is preset. Adjusting the rules to adjust the CCs in the aggregated carrier group includes:
  • the third total adjusted transmit power is greater than the maximum transmit power of the UE, deleting the SCC with the smallest maximum transmit power in the aggregated carrier group, and deleting the PUSCH with the largest bandwidth in the third modulated carrier group.
  • the third adjusted carrier group is selected as the adjusted aggregated carrier group.
  • the method further includes:
  • the idle SCC is Determining, by the base station, an SCC configured by the UE and not belonging to the aggregated carrier group;
  • a second aspect of the embodiments of the present invention provides a method for uplink aggregation of a carrier, where the base station is configured to configure a plurality of secondary carrier SCCs for the user equipment, and the primary carrier and the multiple SCCs of the UE are used as component carriers CC of the UE.
  • the method includes:
  • the idle SCC is Determining, by the base station, an SCC configured by the UE and not belonging to the aggregated carrier group;
  • the selecting the SCC from the multiple idle SCCs and combining all the CCs in the aggregated carrier group to obtain the newly added aggregate carrier group includes:
  • a new aggregated carrier group corresponding to the newly added total adjusted transmit power that is not greater than the maximum transmit power of the UE is selected.
  • a third aspect of the embodiments of the present invention provides a base station, including:
  • Transceiver unit and processing unit are Transceiver unit and processing unit;
  • the transceiver unit is configured to receive extended power margin ePHR information reported by the UE;
  • the processing unit is configured to configure, by the user equipment UE, a plurality of secondary carriers SCC, where the primary carrier and multiple SCCs of the UE are used as component carriers CC of the UE;
  • Selecting at least one SCC from the plurality of SCCs of the UE, the primary carrier of the UE and the at least one SCC comprise an aggregated carrier group, the primary carrier and the at least one SCC serving as a CC of the aggregated carrier group;
  • the preset adjustment rule is selected to adjust the CC in the aggregated carrier group, where the preset adjustment rule includes reducing the number of SCCs in the aggregated carrier group and/or Reducing the PUSCH bandwidth of at least one SCC;
  • the processing unit is configured to calculate, according to the ePHR information, total transmit power required by the UE when all CCs in the aggregated carrier group are aggregated, including:
  • the transceiver unit is further configured to receive a buffer status report BSR reported by the UE, and acquire an uplink data quantity carried by the BSR;
  • the processing unit is configured to select at least one SCC from a plurality of SCCs of the UE, where the primary carrier of the UE and the at least one SCC form an aggregate carrier include:
  • a primary carrier of the UE and the At least one SCC constitutes an aggregated carrier group.
  • the preset adjustment rule is to reduce the number of SCCs in the aggregated carrier group, and the processing unit is configured to adjust the preset preset adjustment rule.
  • the CC in the aggregated carrier group includes:
  • selecting a first adjusted carrier group corresponding to a first total adjusted transmit power that is not greater than a maximum transmit power of the UE is used as the adjusted Aggregated carrier group.
  • the preset adjustment rule is to reduce a PUSCH bandwidth of at least one SCC in the aggregated carrier group
  • the processing unit is configured to select a preset adjustment rule to adjust
  • the CC in the aggregated carrier group includes:
  • the second total adjusted transmit power is greater than the maximum transmit power of the UE, deleting the PUSCH bandwidth of the first preset ratio of the SCC with the largest PUSCH bandwidth in the second adjusted carrier group to obtain a new first Adjusting the carrier group, and returning to calculate the total transmit power required by the UE when all CCs in the second adjusted carrier group are calculated as the second total adjusted transmit power;
  • the second adjusted carrier group is selected as the adjusted aggregate carrier group.
  • the preset adjustment rule is to reduce the number of SCCs in the aggregated carrier group and reduce the PUSCH bandwidth of the at least one SCC, where the processing unit is used to Selecting a preset adjustment rule to adjust the CC in the aggregate carrier group includes:
  • the third adjusted carrier group is selected as the adjusted aggregated carrier group.
  • the sixth possible implementation manner is characterized in that:
  • the processing unit is further configured to: when the total transmit power is not greater than the maximum transmit power of the UE, select one SCC from multiple idle SCCs and combine all CCs in the aggregated carrier group to obtain a new aggregated carrier group.
  • the idle SCC is an SCC configured by the base station to the UE and does not belong to the aggregated carrier group;
  • a fourth aspect of the embodiments of the present invention provides a base station, where the base station includes:
  • the transceiver unit is configured to receive extended power margin ePHR information reported by the UE;
  • the processing unit is configured to configure, by the user equipment UE, a plurality of secondary carriers SCC, where the primary carrier and multiple SCCs of the UE are used as component carriers CC of the UE;
  • the idle SCC is Determining, by the base station, an SCC configured by the UE and not belonging to the aggregated carrier group;
  • the processing unit is configured to: select one SCC from multiple idle SCCs and combine all CCs in the aggregated carrier group to obtain a newly added aggregate carrier group, including :
  • a new aggregated carrier group corresponding to the newly added total adjusted transmit power that is not greater than the maximum transmit power of the UE is selected.
  • the present invention has the following beneficial effects:
  • An embodiment of the present invention provides a method for an uplink aggregation carrier, and a base station, where the base station configures a plurality of secondary carrier SCCs for the user equipment UE, selects at least one SCC from multiple SCCs of the UE, and the primary carrier of the UE and the at least An SCC is configured to form an aggregated carrier group, and receives an extended power headroom ePHR information reported by the UE, and calculates, according to the ePHR information, total transmit power required by the UE in all the aggregated groups in the aggregated carrier group, and determines the total Whether the transmit power is greater than the maximum transmit power of the UE, and when the total transmit power is greater than the maximum transmit power of the UE, the preset adjustment rule is selected to adjust the CC in the aggregated carrier group, so that the adjusted aggregate carrier group The total transmit power required for all CCs to be aggregated is smaller than the maximum transmit power of the UE, and each CC in the adjusted aggregated carrier group transmits uplink data with the
  • the total transmit power required for the aggregation of all the CCs in the adjusted aggregated carrier group is not greater than the maximum transmit power of the UE, and the uplink transmit data is not used to generate the UE transmit power backoff.
  • the problem is that there is no need to reduce the actual transmit power of each CC in the aggregated carrier group.
  • Each CC in the aggregated carrier group can perform uplink data transmission according to the transmit power allocated by the UE to the CC. The data transmission efficiency of each CC in the aggregated carrier group.
  • FIG. 1 is a flowchart of a method for uplinking an aggregate carrier according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a method for a second uplink aggregation carrier according to an embodiment of the present disclosure
  • FIG. 3 is a flowchart of a method for a third uplink aggregation carrier according to an embodiment of the present invention
  • FIG. 4 is a schematic structural diagram of a first base station according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a second base station according to an embodiment of the present invention.
  • the embodiment of the present invention provides a method and an apparatus for uplink aggregation of carriers, which are required to ensure that the total transmit power required for all CCs in the aggregated carrier group is not greater than the maximum transmit power of the UE, and the base station schedules the slave UE from scheduling
  • the aggregated carrier group performs uplink data transmission, the problem that the UE transmits power backoff does not occur, and the actual transmission power of each CC in the aggregated carrier group does not need to be reduced, and the data transmission of each CC in the aggregated carrier group is improved. effectiveness.
  • the method provided by the embodiment of the present invention can be used in a wireless network of different standards, for example, a Long Term Evolution (LTE) system or a subsequent evolution system of LTE.
  • LTE Long Term Evolution
  • eNodeB evolved NodeB
  • the LTE system is taken as an example for description.
  • FIG. 1 is a flowchart of a method for an uplink uplink aggregation carrier according to an embodiment of the present invention, where the method is applied to a base station, including:
  • Step 101 Configure a plurality of secondary carrier SCCs for the user equipment UE, where the primary carrier and multiple SCCs of the UE are used as component carriers CC of the UE.
  • the uplink data transmission is performed to the eNodeB by using the primary carrier belonging to the eNodeB.
  • the base station separately configures multiple secondary carriers (SCCs) for the UEs in the coverage of the eNodeB, and implements a larger carrier aggregation technology. Data transmission bandwidth.
  • the primary carrier of the UE and each SCC configured by the base station to the UE are all one CC of the UE.
  • Step 102 Select at least one SCC from multiple SCCs of the UE, where the primary carrier and the at least one SCC of the UE form an aggregated carrier group, and the primary carrier and the at least one SCC serve as the aggregated carrier group. CC.
  • the carrier aggregation technology when used to implement a larger data transmission bandwidth, at least one SCC needs to be selected from the eNodeB to the multiple SCCs configured by the UE, and the selected at least one SCC and the UE are selected.
  • the primary carrier constitutes a carrier aggregation group, and the carrier aggregation group is used to implement uplink data transmission by the UE to the eNodeB.
  • the first possible implementation manner of the step 102 is: randomly selecting one or more SCCs and a primary carrier of the UE to form a carrier aggregation group according to actual needs.
  • step 102 includes:
  • the base station receives a Buffer Status Report (BSR) reported by the UE, where the BSR Carrying the size of the amount of uplink data that the UE wants to upload to the eNodeB.
  • BSR Buffer Status Report
  • the BSR Carrying the size of the amount of uplink data that the UE wants to upload to the eNodeB.
  • the bearer capability is estimated based on the attribute parameters of this SCC.
  • the attribute parameters include: a PUSCH bandwidth of the CC, a load of the CC, and an uplink transmission efficiency of the UE at the CC.
  • the load of the CC may be evaluated by using a number of users accessed on the CC or a physical resource block (PRB) utilization rate.
  • the UE may use Signal to Interference plus Noise Ratio (SINR), Interference plus Noise (IN), Modulation and Coding Scheme (MCS) or spectrum in the uplink transmission efficiency of the CC. Efficiency measurement.
  • the base station selects at least one SCC and the primary carrier of the UE to form an aggregated carrier group according to the uplink data volume of the UE and the data carrying capability of each CC of the UE, so that the CC in the aggregated carrier group is used for uplink data.
  • the uplink data amount may be completely transmitted within a preset data transmission time.
  • Each CC of the UE includes a primary carrier of the UE and each SCC configured by the base station to the UE.
  • the preset data transmission time is 10 ms
  • selecting at least one SCC from the plurality of SCCs of the UE and the primary carrier of the UE to form an aggregated carrier group determining whether the selected aggregated carrier group is within 10 ms
  • the uplink data volume to be transmitted by the UE to the eNodeB is completed. If yes, the selected aggregated carrier group meets the requirement; if not, the selected aggregated carrier group does not meet the requirement.
  • there are multiple aggregation carrier groups that meet the requirements and the aggregation carrier group with a small number of CCs is preferentially selected, so that the total transmission power required for the UE to use the aggregate carrier group for data transmission can be reduced.
  • Step 103 Receive extended power headroom ePHR information reported by the UE.
  • Step 104 Calculate, according to the ePHR information, a total transmit power required by the UE when all CCs in the aggregated carrier group are aggregated.
  • the eNodeB receives the extended power headroom report (ePHR) information reported by the UE, where the ePHR information carries the maximum transmit power of each CC in the aggregated carrier group. And power headroom
  • ePHR extended power headroom report
  • Each CC in the aggregated carrier group includes a primary carrier of the UE and at least one SCC selected in step 102.
  • calculating, according to the ePHR information, total transmit power required by the UE when all CCs in the aggregated carrier group are aggregated includes:
  • the eNodeB Obtaining, by the eNodeB, a maximum transmit power of each CC in the aggregated carrier group carried in the ePHR information reported by the UE And the power headroom of each CC And calculating, according to the time when the ePHR information is received, the time when the UE reports the ePHR information.
  • the time before the eNodeB receives the ePHR information is the time before the ePHR information is reported by the UE, and the eNodeB queries the time before the time when the ePHR information is received. Time-scheduled bandwidth for each CC in the aggregated carrier group
  • First calculating the power spectral density of each CC in the aggregated carrier group Use the maximum transmit power of a CC Power headroom And the bandwidth of the UE's ePHR information reporting time schedule Calculate the power spectral density of this CC And then according to the power spectral density of each CC in the aggregated carrier group And calculating, by the PUSCH bandwidth of each CC, a total transmit power required by the UE when all CCs in the aggregated carrier group are aggregated.
  • the total transmit power can be roughly regarded as calculating a power spectral density of each CC in the aggregated carrier group.
  • the total transmit power required by the UE can be obtained by re-summing the product with the PUSCH bandwidth.
  • Step 105 Determine whether the total transmit power is greater than a maximum transmit power of the UE.
  • Step 106 When the total transmit power is greater than the maximum transmit power of the UE, select a preset adjustment rule to adjust the CC in the aggregated carrier group, where the preset adjustment rule includes reducing the number of SCCs in the aggregated carrier group. And/or reducing the PUSCH bandwidth of at least one SCC.
  • Step 107 Perform uplink data transmission with the UE by using each CC in the adjusted aggregated carrier group.
  • the core difference between the prior art and the present invention is that, when the uplink data transmission is implemented by using the carrier aggregation technology in the prior art, the eNodeB schedules a primary carrier and at least one SCC from the UE, and the primary carrier that the UE schedules the eNodeB and The at least one SCC forms an aggregated carrier group to implement uplink data transmission, and the UE side calculates a total transmit power required by the UE to use the CC in the aggregated carrier group for uplink data transmission, where the total transmit power is greater than the maximum transmit power of the UE.
  • the UE cannot change the CC in the aggregated carrier group scheduled by the eNodeB, and can only perform uplink data transmission by reducing the actual transmit power of each CC in the aggregated carrier group.
  • the eNodeB calculates a total transmit power required by the UE to perform uplink data transmission by using the selected aggregated carrier group, and when the total transmit power is greater than the maximum transmit power of the UE, the eNodeB The CC in the selected aggregation carrier group may be adjusted, so that the total transmit power required by the UE to perform uplink data transmission by using the adjusted aggregate carrier group is smaller than the maximum transmit power of the UE, the eNodeB The adjusted aggregate carrier group is scheduled from the UE.
  • the UE uses the adjusted aggregated carrier group to perform uplink data transmission, there is no problem of power backoff, and it is not necessary to reduce the actual transmit power of each CC in the adjusted aggregated carrier group, which can improve The efficiency of the uplink data transmission by the UE.
  • the preset adjustment rule is selected to adjust the CC in the aggregated carrier group, so that the total transmit power required for all CCs in the adjusted aggregated carrier group is not greater than The maximum transmit power of the UE.
  • the preset adjustment rule includes reducing the number of SCCs in the aggregated carrier group and/or reducing the PUSCH bandwidth of the at least one SCC.
  • the selecting the preset adjustment rule to adjust the CC in the aggregated carrier group has the following various possible implementation manners.
  • the preset adjustment rule is to reduce the number of SCCs in the aggregate carrier group:
  • selecting a first adjusted carrier group corresponding to a first total adjusted transmit power that is not greater than a maximum transmit power of the UE is used as the adjusted Aggregated carrier group.
  • the selected preset adjustment rule is to reduce the number of SCCs in the aggregated carrier group. That is, the PUSCH bandwidth of each CC in the aggregated carrier group is kept unchanged, and one SCC in the aggregated carrier group is deleted to obtain a plurality of first adjusted carrier groups.
  • the aggregated carrier group includes at least one SCC. When the CC in the aggregated carrier group is adjusted, only the SCC can be deleted, and the primary carrier cannot be deleted.
  • the SCC is deleted, and only one primary carrier remains in the aggregated carrier group, and the UE uses a single carrier for uplink data transmission.
  • the aggregate carrier group includes a primary carrier A1 and three SCCs.
  • the four SCCs are A2, A3, and A4.
  • the specific algorithm is as follows: acquiring the first adjusted carrier group carried in the ePHR information.
  • the maximum transmit power of each CC and the power headroom of each CC are obtained, and the bandwidth scheduled for each CC in the first adjusted carrier group is obtained by the ePHR information reporting time; according to each of the first adjusted carrier groups Calculating a power spectral density of each CC according to the maximum transmit power of the CC, the power headroom, and the scheduled bandwidth; according to the power spectral density of each CC in the aggregated carrier group and each CC
  • the PUSCH bandwidth calculates a first total adjusted transmit power required by the UE when all CCs in the first adjusted carrier group are aggregated.
  • Calculating a first total adjusted transmit power of the plurality of first adjusted carrier groups respectively. Comparing each of the first total adjusted transmit powers with the maximum transmit power of the UE, and deleting, when all the first total adjusted transmit powers are greater than the maximum transmit power of the UE, respectively deleting each of the first adjusted carrier groups.
  • One SCC obtains a plurality of new first adjusted carrier groups, and different SCCs in the same first adjusted carrier group may be deleted to obtain different first adjusted carrier groups.
  • the primary carrier A1 and the two SCCs A3 and A4 form a first adjusted carrier group, and A3 is deleted.
  • the primary carrier A1 and an SCC A4 form a new first adjusted carrier group; the A4, the primary carrier A1 and an SCC are deleted.
  • A3 forms a new first adjusted carrier group.
  • the primary carrier A1 and the three SCCs A2 and A4 form a first adjusted carrier group, and A4 is deleted.
  • the primary carrier A1 and one SCC A2 form a new first adjusted carrier group.
  • a duplicate new first is generated.
  • the carrier group is adjusted, and one of the plurality of identical new first adjusted carrier groups is reserved, and the first total adjusted transmit power of the generated three new first adjusted carrier groups is calculated. Determining whether all of the first total adjusted transmit powers are greater than the maximum transmit power of the UE, and if yes, performing a separate deletion of one SCC in each of the first adjusted carrier groups to obtain a plurality of new first adjusted carrier groups.
  • the adjusted Aggregate carrier group When there is at least one first total adjusted transmit power that is not greater than the maximum transmit power of the UE, selecting a first adjusted carrier group corresponding to the first total adjusted transmit power that is smaller than the maximum transmit power of the UE is used as the adjusted Aggregate carrier group.
  • the first total adjusted transmit power is smaller than the maximum transmit power of the UE, and when the UE is used according to the call of the eNodeB, each CC in the first adjusted carrier group corresponding to the first total adjusted transmit power is used.
  • the total transmit power required is not greater than the maximum transmit power of the UE, and no power backoff problem occurs.
  • the preset adjustment rule is to reduce the number of SCCs in the aggregated carrier group
  • the PUSCH bandwidth of each CC in the aggregated carrier group is kept unchanged, and only the aggregation is changed.
  • the number of SCCs in the carrier group generates the first adjusted carrier group, which is not limited to the foregoing implementation manner, and may be implemented as follows:
  • the fourth adjusted carrier group is used as the adjusted aggregate carrier group.
  • the SCC with the largest maximum transmit power in the aggregated carrier group may be deleted, or the SCC with the largest PUSCH bandwidth in the aggregated carrier group may be deleted.
  • the condition for selecting the SCC to be deleted is set according to actual needs, and is not specifically limited herein.
  • the preset adjustment rule is to reduce a PUSCH bandwidth of the at least one SCC
  • the selecting a preset adjustment rule to adjust the CC in the aggregated carrier group includes:
  • the second total adjusted transmit power is greater than the maximum transmit power of the UE, deleting the PUSCH bandwidth of the first preset ratio of the SCC with the largest PUSCH bandwidth in the second adjusted carrier group to obtain a new first Adjusting the carrier group, and returning to calculate the total transmit power required by the UE when all CCs in the second adjusted carrier group are calculated as the second total adjusted transmit power;
  • the second adjusted carrier group is selected as the adjusted aggregate carrier group.
  • the second possible implementation manner is: when the CC in the selected aggregation carrier is adjusted, the preset preset adjustment rule is to delete the first preset ratio of the SCC with the largest PUSCH bandwidth in the aggregated carrier group.
  • the PUSCH bandwidth That is, the number of CCs in the aggregated carrier group is kept unchanged, and the PUSCH bandwidth of the first preset ratio of the SCC with the largest PUSCH bandwidth in the aggregated carrier group is deleted to obtain the second adjusted carrier group.
  • the PUSCH bandwidth of the first preset ratio of the unique SCC in the aggregated carrier group is deleted.
  • the first preset ratio may be specifically set according to actual needs.
  • the first preset ratio may be one-half, one-third, and the like.
  • the SCC with the largest PUSCH bandwidth in the aggregated carrier group is selected, and the PUSCH bandwidth of the first preset ratio of the SCC is deleted to obtain the second adjusted carrier group. It can be understood by those skilled in the art that deleting the PUSCH bandwidth of one SCC can reduce the transmission power required by the SCC, thereby reducing the total transmit power required for the entire aggregated carrier group.
  • the total transmit power required by the carrier group is similar.
  • the specific algorithm is as follows: acquiring the maximum transmit power of each CC in the second adjusted carrier group carried in the ePHR information and the power headroom of each CC, and acquiring the ePHR
  • the bandwidth of each CC in the first adjusted carrier group is reported by the information reporting time; the power headroom and the scheduled bandwidth are calculated according to the maximum transmit power of each CC in the second adjusted carrier group.
  • Calculating a power spectral density of each CC calculating, according to the power spectral density of each CC in the aggregated carrier group and the PUSCH bandwidth of each CC, the UEs in all CC aggregations in the second adjusted carrier group The second total adjustment required for transmit power.
  • the new second adjusted carrier group returns a new second total adjusted transmit power of the new second adjusted carrier group, and if the new second total adjusted transmit power is greater than the maximum transmit power of the UE, the deletion is returned.
  • the PUSCH bandwidth of the first preset ratio of the SCC with the largest PUSCH bandwidth in the second adjustment carrier group obtains a new second adjusted carrier group.
  • the second adjusted carrier group is used as the adjusted aggregate carrier group.
  • the total transmit power required is not greater than the maximum transmit power of the UE, and no power backoff occurs.
  • the preset adjustment rule is to reduce the PUSCH bandwidth of the at least one SCC, keep the number of CCs in the aggregated carrier group unchanged, and change only the PUSCH of at least one SCC in the aggregated carrier group.
  • the bandwidth generation second adjustment carrier group can also be implemented as follows:
  • the fifth adjusted carrier group is selected as the adjusted aggregate carrier group.
  • the PUSCH bandwidth of the first preset ratio of the SCC with the smallest PUSCH bandwidth in the aggregated carrier group may be deleted, or the aggregated carrier group may be deleted.
  • the PUSCH bandwidth of the first preset ratio of the SCC with the largest maximum transmit power may also reduce the PUSCH bandwidth of two or more SCCs, etc., and may select to delete the PUSCH bandwidth according to actual needs.
  • the conditions of the SCC are not specifically limited herein.
  • the preset adjustment rule is to reduce the number of SCCs in the aggregated carrier group and reduce the PUSCH bandwidth of the at least one SCC, where the selection preset adjustment rule adjusts the CC includes:
  • the third total adjusted transmit power is greater than the maximum transmit power of the UE, deleting the SCC with the smallest maximum transmit power in the aggregated carrier group, and deleting the PUSCH with the largest bandwidth in the third modulated carrier group.
  • the third adjusted carrier group is selected as the adjusted aggregated carrier group.
  • the total transmit power is similar.
  • the specific implementation is as follows: acquiring the maximum transmit power of each CC in the third adjusted carrier group and the power headroom of each CC in the ePHR information, and acquiring the ePHR information reporting time Bandwidth scheduled for each CC in the first adjusted carrier group; calculating each CC according to the maximum transmit power of each CC in the third adjusted carrier group, the power headroom, and the scheduled bandwidth a power spectral density; calculating, according to the power spectral density of each CC in the aggregated carrier group and the PUSCH bandwidth of each CC, the number of UEs required for all CCs in the third adjusted carrier group Three total adjustment of the transmission power.
  • the PUSCH bandwidth of the second preset ratio of the SCC with the largest PUSCH bandwidth in the third adjusted carrier group obtains a new third adjusted carrier group.
  • the third adjusted carrier group is used as the adjusted aggregate carrier group.
  • the total transmit power required is smaller than the maximum transmit power of the UE, and no power backoff occurs.
  • the preset adjustment rule is to reduce the number of SCCs in the aggregated carrier group and reduce the PUSCH bandwidth of the at least one SCC, and change the number of CCs in the aggregated carrier group, and change
  • the third adjusted carrier group is generated by the PUSCH bandwidth of the at least one SCC in the aggregated carrier group, which is not limited to the foregoing implementation manner, and may be implemented as follows:
  • Randomly deleting one SCC in the aggregated carrier group, and deleting any one of the aggregated carrier groups The PUSCH bandwidth of the first preset ratio of the SCC obtains a sixth adjusted carrier group;
  • the PUSCH bandwidth obtains a sixth adjusted carrier group
  • the sixth adjusted carrier group is selected as the adjusted aggregate carrier group.
  • the SCC with the largest maximum transmit power in the aggregated carrier group can be deleted, and the PUSCH bandwidth of the first preset ratio of all SCCs can be reduced, or deleted.
  • the SCC with the largest PUSCH bandwidth reduces the bandwidth of the first preset ratio of any one of the SCCs, and may also delete one SCC first. If the CCs in the obtained aggregated carrier group perform uplink data transmission, the total transmit power required is still Greater than the maximum transmit power of the UE, further reducing the PUSCH bandwidth of one SCC, and the like.
  • the conditions for selecting the SCC to be deleted and the SCC for which the PUSCH bandwidth is to be reduced may be set according to actual needs, and are not specifically limited herein.
  • step 106 is not limited to the foregoing implementation manners.
  • the general principle of performing step 106 is that the total transmit power required by the adjusted aggregated carrier group obtained in step 106 is not greater than the UE.
  • the maximum transmit power is sufficient, and all methods for obtaining the adjusted aggregated carrier group are all technical solutions protected by the present invention.
  • FIG. 2 is a flowchart of a method for a second uplink aggregation carrier according to an embodiment of the present invention.
  • the embodiment provided in FIG. 2 further includes, when compared to the embodiment provided in FIG. 1, when the total transmit power is not greater than the foregoing.
  • selecting one SCC from the plurality of idle SCCs and combining all the CCs in the aggregated carrier group to obtain the newly added aggregated carrier group includes:
  • Step 201 Configure a plurality of secondary carrier SCCs for the user equipment UE, where the primary carrier and multiple SCCs of the UE are used as component carriers CC of the UE.
  • Step 202 Select at least one SCC from multiple SCCs of the UE, where the primary carrier and the at least one SCC of the UE form an aggregated carrier group, and the primary carrier and the at least one SCC are configured.
  • the CC of the aggregated carrier group is configured.
  • Step 203 Receive extended power headroom ePHR information reported by the UE.
  • Step 204 Calculate, according to the ePHR information, a total transmit power required by the UE when all CCs in the aggregated carrier group are aggregated.
  • Step 205 Determine whether the total transmit power is greater than the maximum transmit power of the UE. If yes, go to step 206; if no, go to step 208.
  • Step 206 Select a preset adjustment rule to adjust a CC in the aggregated carrier group, where the preset adjustment rule includes reducing a number of SCCs in the aggregated carrier group and/or reducing a PUSCH bandwidth of at least one SCC.
  • Step 207 Perform uplink data transmission with the UE by using each CC in the adjusted aggregated carrier group.
  • Steps 201 and 207 are similar to the embodiment described in FIG. 1. Referring to the description in the embodiment described in FIG. 1, details are not described herein again.
  • Step 208 Select one SCC from multiple idle SCCs to combine with all CCs in the aggregated carrier group to obtain a newly added aggregated carrier group, where the idle SCC is configured by the base station to the UE and does not belong to the aggregation. SCC of the carrier group;
  • Step 209 Perform uplink data transmission with the UE by using each of the newly added adjustment carriers.
  • the eNodeB may directly call each CC in the aggregated carrier group for uplink data transmission, or may add another SCC to obtain a newly aggregated carrier. group.
  • the added SCC is an SCC that is configured by the eNodeB to the UE in advance and is not in the aggregated carrier group.
  • the eNodeB may be configured in advance by the UE, and each SCC in the aggregated carrier group is combined with the CC in the aggregated carrier group to generate multiple newly added adjustment carrier groups. .
  • the eNodeB is configured in advance to the UE, and the SCCs that are not in the aggregated carrier group have A5 and A6, and the aggregated carrier group has a primary carrier A1 and three SCCs A2 and A3.
  • A4 Combining SCC A5 with the CC in the aggregated carrier group to generate a new one
  • the carrier group is adjusted, and the newly added carrier group includes a primary carrier A1 and four SCCs A2, A3, A4, and A5.
  • the newly added adjustment carrier group includes a primary carrier A1, and four SCCs A2, A3, A4, and A6.
  • the method for calculating the total transmit power of the aggregated carrier group is similar to that of the first calculation module, and the specific implementation manner is: acquiring the maximum transmit power of each CC in the newly added adjustment carrier group carried in the ePHR information, and each CC a power headroom for obtaining a bandwidth scheduled for each CC in the newly added adjustment carrier group when the ePHR information reporting time is obtained; and the maximum transmission power of each CC in the newly adjusted carrier group, the power Calculating a power spectral density of each CC and a bandwidth of the scheduled; calculating the newly added carrier group according to the power spectral density of each CC in the aggregated carrier group and the PUSCH bandwidth of each CC The newly added total adjusted transmit power required by the UE when all CCs are aggregated.
  • the eNodeB invokes each CC in the aggregated carrier group from the UE to implement uplink data transmission.
  • the newly added carrier group transmits uplink data.
  • an SCC component is added to the original aggregation carrier group to form a new adjustment carrier group, the UE needs to perform uplink data transmission after all CCs in the newly added adjustment carrier group are aggregated.
  • the total transmit power is not greater than the maximum transmit power of the UE, and there is no problem of power backoff.
  • the present invention has the following beneficial effects:
  • the total transmit power required for the aggregation of all the CCs in the adjusted aggregated carrier group is not greater than the maximum transmit power of the UE.
  • the UE transmit power backoff does not occur. Therefore, it is not necessary to reduce the actual transmit power of each CC in the aggregated carrier group, and each CC in the aggregated carrier group can perform uplink data transmission according to the transmit power allocated by the UE to the CC, and improve the aggregation.
  • the data transmission efficiency of each CC in the carrier group is not greater than the maximum transmit power of the UE.
  • FIG. 3 is a flowchart of a method for a third uplink aggregation carrier according to an embodiment of the present invention, including:
  • Step 301 Configure a plurality of secondary carrier SCCs for the user equipment UE, where the primary carrier and multiple SCCs of the UE are used as component carriers CC of the UE.
  • Step 302 Select at least one SCC from multiple SCCs of the UE, where the primary carrier and the at least one SCC of the UE form an aggregated carrier group, and the primary carrier and the at least one SCC serve as the aggregated carrier group CC.
  • Step 303 Receive extended power headroom ePHR information reported by the UE.
  • Step 304 Calculate, according to the ePHR information, a total transmit power required by the UE when all CCs in the aggregated carrier group are aggregated.
  • Step 305 Determine whether the total transmit power is greater than a maximum transmit power of the UE.
  • Step 306 When the total transmit power is not greater than the maximum transmit power of the UE, select one SCC from multiple idle SCCs and combine all CCs in the aggregated carrier group to obtain a newly added aggregated carrier group, where the idle
  • the SCC is an SCC that is configured by the base station to the UE and does not belong to the aggregated carrier group.
  • Step 307 Perform uplink data transmission with the UE by using each of the newly added adjustment carriers.
  • the eNodeB may directly call each CC in the aggregated carrier group for uplink data transmission, or may add another SCC to obtain a newly aggregated carrier. group.
  • the added SCC is an SCC that is configured by the eNodeB to the UE in advance and is not in the aggregated carrier group.
  • step 306 selecting one SCC from multiple idle SCCs and combining all CCs in the aggregated carrier group to obtain a new aggregated carrier group has many implementation manners:
  • the randomly selected SCC is deleted from the newly added aggregated carrier group, and another SCC and the aggregated carrier set are randomly selected from multiple idle SCCs. All the CCs are aggregated to obtain a new aggregated carrier group, and the total transmit power required by the UE in the newly added adjustment carrier group is calculated as the newly added total transmit power of the newly added carrier group. ;
  • a new aggregated carrier group corresponding to the newly added total adjusted transmit power that is not greater than the maximum transmit power of the UE is selected.
  • the number of idle SCCs is the same as the number of newly generated aggregated carrier groups.
  • the eNodeB is configured in advance to the UE, and the SCCs that are not in the aggregated carrier group have A5 and A6, and the aggregated carrier group has a primary carrier A1 and three SCCs A2 and A3.
  • A4 Combining SCC A5 with the CC in the aggregated carrier group to generate a newly added adjustment carrier group, the newly added adjustment carrier group includes a primary carrier A1, and four SCCs A2, A3, A4, and A5.
  • Combining SCC A6 with the CC in the aggregated carrier group to generate a newly added adjustment carrier group the newly added adjustment carrier group includes a primary carrier A1, and four SCCs A2, A3, A4, and A6.
  • the method for calculating the total transmit power of the aggregated carrier group by the first calculation module is similar to The method for obtaining the maximum transmit power of each CC in the newly added adjustment carrier group and the power headroom of each CC in the ePHR information, and acquiring the new adjustment of the ePHR information reporting time a bandwidth scheduled by each CC in the carrier group; calculating, according to the maximum transmit power of each CC in the newly adjusted carrier group, the power headroom and the scheduled bandwidth, a power spectral density of each CC; Calculating, according to the power spectral density of each CC in the aggregated carrier group and the PUSCH bandwidth of each CC, the newly added total adjusted transmit power required by the UE when all CCs in the newly added adjustment carrier group are aggregated.
  • the eNodeB invokes each CC in the aggregated carrier group from the UE to implement uplink data transmission.
  • the newly added carrier group transmits uplink data.
  • an SCC component is added to the original aggregation carrier group to form a new adjustment carrier group, the UE needs to perform uplink data transmission after all CCs in the newly added adjustment carrier group are aggregated.
  • the total transmit power is less than the maximum transmit power of the UE, and there is no problem of power backoff.
  • the method provided in FIG. 3 of the present invention may further increase in the aggregate carrier group when the total transmit power required for all CC aggregation of the aggregated carrier group is smaller than the maximum transmit power of the UE.
  • An idle SCC obtains a new aggregated carrier group, so that the newly added total transmit power required for all CCs in the newly added aggregated carrier group is not greater than the maximum transmit power of the UE, so as to further improve uplink data of the UE. The efficiency of the transmission.
  • FIG. 4 is a schematic structural diagram of a first base station according to an embodiment of the present invention, including:
  • Transceiver unit 401 and processing unit 402.
  • the transceiver unit 401 is configured to receive extended power margin ePHR information reported by the UE;
  • the processing unit 402 is configured to configure, by the user equipment UE, a plurality of secondary carriers SCC, where the primary carrier and multiple SCCs of the UE are used as component carriers CC of the UE;
  • the preset adjustment rule is selected to adjust the CC in the aggregated carrier group, where the preset adjustment rule includes reducing the number of SCCs in the aggregated carrier group and/or Reducing the PUSCH bandwidth of at least one SCC;
  • the processing unit 402 is configured to calculate, according to the ePHR information, a total transmit power required by the UE when all CCs in the aggregated carrier group are aggregated, including:
  • the transceiver unit 401 is further configured to receive a buffer status report BSR reported by the UE, and obtain an uplink data quantity carried by the BSR.
  • the processing unit 402 is configured to select at least one SCC from a plurality of SCCs of the UE, where the primary carrier of the UE and the at least one SCC form an aggregate carrier include:
  • the primary carrier of the UE and the at least one SCC form an aggregated carrier group.
  • the preset adjustment rule is to reduce the number of SCCs in the aggregated carrier group
  • the processing unit 402 is configured to: adjust the CC in the aggregated carrier group by using the preset adjustment rule to include:
  • selecting a first adjusted carrier group corresponding to a first total adjusted transmit power that is not greater than a maximum transmit power of the UE is used as the adjusted Aggregated carrier group.
  • the preset adjustment rule is to reduce a PUSCH bandwidth of the at least one SCC in the aggregated carrier group, where the processing unit 402 is configured to select a preset adjustment rule to adjust a CC in the aggregated carrier group, including:
  • the second total adjusted transmit power is greater than the maximum transmit power of the UE, deleting the PUSCH bandwidth of the first preset ratio of the SCC with the largest PUSCH bandwidth in the second adjusted carrier group to obtain a new first Second, adjust the carrier group, and return to perform calculation to calculate all CC aggregations in the second adjusted carrier group.
  • the total transmit power required by the UE as the second total adjusted transmit power;
  • the second adjusted carrier group is selected as the adjusted aggregate carrier group.
  • the preset adjustment rule is to reduce the number of SCCs in the aggregated carrier group and reduce the PUSCH bandwidth of the at least one SCC, where the processing unit 402 is configured to select a preset adjustment rule to adjust the aggregated carrier group.
  • the CC includes:
  • the third total adjusted transmit power is greater than the maximum transmit power of the UE, deleting the SCC with the smallest maximum transmit power in the aggregated carrier group, and deleting the PUSCH with the largest bandwidth in the third modulated carrier group.
  • the third adjusted carrier group is selected as the adjusted aggregated carrier group.
  • the processing unit 402 is further configured to: when the total transmit power is not greater than a maximum transmit power of the UE, select one SCC from multiple idle SCCs and obtain a combination of all CCs in the aggregated carrier group. Adding an aggregated carrier group, where the idle SCC is an SCC configured by the base station to the UE and does not belong to the aggregated carrier group;
  • the base station shown in FIG. 4 may be configured to adjust the aggregation by selecting a preset adjustment rule when the total transmit power required for all CC aggregations in the aggregated carrier group is greater than the maximum transmit power of the UE.
  • the CC in the carrier group, the base station in this embodiment is a base station corresponding to the method for uplink aggregation carrier shown in FIG. 1 to FIG. 2, and the description of the method in FIG. 1 to FIG. I won't go into details here.
  • the transceiver unit 401 processes the unit 402,
  • the transceiver unit 401 is configured to receive extended power margin ePHR information reported by the UE;
  • the processing unit 402 is configured to configure, by the user equipment UE, a plurality of secondary carriers SCC, where the primary carrier and multiple SCCs of the UE are used as component carriers CC of the UE;
  • the idle SCC is Determining, by the base station, an SCC configured by the UE and not belonging to the aggregated carrier group;
  • the processing unit 402 is configured to select, by using one of the multiple idle SCCs, the combination of all the CCs in the aggregated carrier group to obtain the newly added aggregated carrier group, including:
  • a new aggregated carrier group corresponding to the newly added total adjusted transmit power that is not greater than the maximum transmit power of the UE is selected.
  • the aggregated carrier group may also be in the aggregated carrier group. Adding an SCC to generate a new aggregated carrier group for uplink data transmission.
  • the base station in this embodiment is a base station corresponding to the method for uplink aggregation carrier shown in FIG. 3. Referring to the description of the method shown in FIG. 3, here No longer.
  • FIG. 6 is a schematic structural diagram of a second base station according to an embodiment of the present invention, including:
  • the transceiver 601 is configured to receive extended power margin ePHR information reported by the UE;
  • the processor 602 is configured to configure, by the user equipment UE, a plurality of secondary carriers SCC, where the primary carrier of the UE and multiple SCCs are used as component carriers CC of the UE;
  • Selecting at least one SCC from the plurality of SCCs of the UE, the primary carrier of the UE and the at least one SCC comprise an aggregated carrier group, the primary carrier and the at least one SCC serving as a CC of the aggregated carrier group;
  • the preset adjustment rule is selected to adjust the CC in the aggregated carrier group, where the preset adjustment rule includes reducing the number of SCCs in the aggregated carrier group and/or Reducing the PUSCH bandwidth of at least one SCC;
  • the processor 602 is configured to calculate, according to the ePHR information, total transmit power required by the UE when all CCs in the aggregated carrier group are aggregated, including:
  • the transceiver 601 is further configured to receive a buffer status report BSR reported by the UE, and obtain an uplink data quantity carried by the BSR.
  • the processor 602 is configured to select at least one SCC from a plurality of SCCs of the UE, where the primary carrier of the UE and the at least one SCC form an aggregate carrier include:
  • the at least one SCC constitutes an aggregated carrier group.
  • the preset adjustment rule is to reduce the number of SCCs in the aggregated carrier group
  • the processing unit 602 is configured to: adjust the CC in the aggregated carrier group by using the preset preset adjustment rule to include:
  • selecting a first adjusted carrier group corresponding to a first total adjusted transmit power that is not greater than a maximum transmit power of the UE is used as the adjusted Aggregated carrier group.
  • the preset adjustment rule is to reduce a PUSCH bandwidth of the at least one SCC in the aggregated carrier group, where the processing unit 602 is configured to select a preset adjustment rule to adjust a CC in the aggregated carrier group, including:
  • the second total adjusted transmit power is greater than the maximum transmit power of the UE, deleting the PUSCH bandwidth of the first preset ratio of the SCC with the largest PUSCH bandwidth in the second adjusted carrier group to obtain a new first Adjusting the carrier group, and returning to calculate the total transmit power required by the UE when all CCs in the second adjusted carrier group are calculated as the second total adjusted transmit power;
  • the second adjusted carrier group is selected as the adjusted aggregate carrier group.
  • the preset adjustment rule is to reduce the number of SCCs in the aggregated carrier group and reduce the PUSCH bandwidth of the at least one SCC, where the processor 602 is configured to select a preset adjustment rule to adjust the aggregated carrier group.
  • the CC includes:
  • the third total adjusted transmit power is greater than the maximum transmit power of the UE, deleting the SCC with the smallest maximum transmit power in the aggregated carrier group, and deleting the PUSCH with the largest bandwidth in the third modulated carrier group.
  • the third adjusted carrier group is selected as the adjusted aggregated carrier group.
  • the processor 602 is further configured to: when the total transmit power is not greater than a maximum transmit power of the UE, select one SCC from multiple idle SCCs and obtain a combination of all CCs in the aggregated carrier group. Adding an aggregated carrier group, where the idle SCC is an SCC configured by the base station to the UE and does not belong to the aggregated carrier group;
  • the base station shown in FIG. 6 can reduce the SCC in the aggregated carrier group when the total transmit power required for all CC aggregations in the aggregated carrier group is greater than the maximum transmit power of the UE.
  • the number and/or the PUSCH bandwidth of the at least one SCC is reduced.
  • the base station described in this embodiment is a base station corresponding to the method for uplink aggregation carrier shown in FIG. 1 to FIG. 2, and the description of the method of FIG. 1 to FIG. 2 is referred to. , no longer repeat them here.
  • Transceiver 701 and processor 702 are Transceiver 701 and processor 702,
  • the transceiver 701 is configured to receive extended power margin ePHR information reported by the UE;
  • the processor 702 is configured to configure, by the user equipment UE, a plurality of secondary carriers SCC, where the primary carrier of the UE and multiple SCCs are used as component carriers CC of the UE;
  • the idle SCC is Determining, by the base station, an SCC configured by the UE and not belonging to the aggregated carrier group;
  • the processor 702 is configured to select one SCC from multiple idle SCCs and combine all CCs in the aggregated carrier group to obtain a new aggregated carrier group, including:
  • a new aggregated carrier group corresponding to the newly added total adjusted transmit power that is not greater than the maximum transmit power of the UE is selected.
  • the aggregated carrier group may also be in the aggregated carrier group. Adding an SCC to generate a new aggregated carrier group for uplink data transmission.
  • the base station in this embodiment is a base station corresponding to the method for uplink aggregation carrier shown in FIG. 3. Referring to the description of the method shown in FIG. 3, here No longer.

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Abstract

L'invention porte sur un procédé d'agrégation de porteuses en liaison montante et sur une station de base. Lorsque toutes les porteuses composantes (CC pour Component Carrier) d'un groupe de porteuses agrégées sont agrégées et lorsqu'une puissance de transmission totale requise par un équipement utilisateur (UE) est supérieure à une puissance de transmission maximale de l'UE, une règle d'ajustement prédéterminée est sélectionnée pour ajuster les porteuses CC dans le groupe de porteuses agrégées de telle sorte que la puissance de transmission totale nécessaire lorsque toutes les porteuses CC ajustées dans le groupe de porteuses agrégées sont agrégées, n'est pas supérieure à la puissance de transmission maximale de l'UE, et des données de liaison montante sont transmises en utilisant chaque porteuse CC ajustée dans le groupe de porteuses agrégées et l'UE. Ainsi, on garantit que la puissance de transmission totale nécessaire lorsque toutes les porteuses CC ajustées dans le groupe de porteuses agrégées sont agrégées, n'est pas supérieure à la puissance de transmission maximale de l'UE, lorsqu'une station de base transmet les données de liaison montante en utilisant chaque porteuse CC ajustée dans le groupe de porteuses agrégées et l'UE, le problème du recul de puissance de l'UE ne sera pas généré, chaque porteuse CC dans le groupe de porteuses agrégées peut transmettre les données de liaison montante selon la puissance de transmission attribuée à cette porteuse CC par l'UE, et l'efficacité de transmission de données de chaque porteuse CC dans le groupe de porteuses agrégées est améliorée.
PCT/CN2014/090335 2014-11-05 2014-11-05 Procédé d'agrégation de porteuses en liaison montante et station de base WO2016070357A1 (fr)

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