WO2016197722A1 - Procédé et appareil de division d'un paquet de données, nœud évolué et support d'informations lisible par ordinateur - Google Patents

Procédé et appareil de division d'un paquet de données, nœud évolué et support d'informations lisible par ordinateur Download PDF

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Publication number
WO2016197722A1
WO2016197722A1 PCT/CN2016/080161 CN2016080161W WO2016197722A1 WO 2016197722 A1 WO2016197722 A1 WO 2016197722A1 CN 2016080161 W CN2016080161 W CN 2016080161W WO 2016197722 A1 WO2016197722 A1 WO 2016197722A1
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Prior art keywords
carrier
ratio
carriers
cell
rate
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PCT/CN2016/080161
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English (en)
Chinese (zh)
Inventor
许倩倩
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中兴通讯股份有限公司
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Publication of WO2016197722A1 publication Critical patent/WO2016197722A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria

Definitions

  • the present invention relates to, but is not limited to, the field of Carrier Aggregation (CA) in the LTE-A (Long Term Evolution-Advanced) system, and in particular, to a method, an apparatus, an evolved node, and a computer readable storage for data packet splitting. medium.
  • CA Carrier Aggregation
  • LTE-A is a LTE (Long Term Evolution) subsequent evolution technology standard introduced by the 3GPP to meet the requirements of the International Telecommunication Union (ITU) proposed by the International Telecommunication Union (ITU).
  • the LTE-A is the largest. Supports 100MHz system bandwidth, downlink peak rate exceeds 1Gbps, and uplink peak rate reaches 500Mbps.
  • the LTE-A system design not only needs to meet the performance requirements, but also considers good backward compatibility with LTE to reduce the cost of carrier network upgrade.
  • LTE-A In order to meet the peak rate requirement, LTE-A currently supports a maximum bandwidth of 100 MHz. However, it is difficult to find such a large bandwidth in the relevant available spectrum resources, and the large bandwidth brings great difficulty to the hardware design of the base station and the terminal. In addition, for spectrum resources dispersed in multiple frequency bands, a technology is needed to make full use of them. Based on the above considerations, LTE-A introduces the key technology of carrier aggregation.
  • the basic method of carrier aggregation is to divide a continuous spectrum or multiple discrete spectrum into multiple component carriers (CC).
  • a user equipment User Equipment, UE for short
  • UE User Equipment
  • PRB Physical Resource Block
  • the number of aggregated component carriers is up to 5, and each component carrier is up to 20 MHz; these component carriers can be close to or spaced apart.
  • an Evolved Node B aggregates two or more carriers and delivers a radio resource control (RRC) reconfiguration message to the UE, so that the UE can
  • RRC radio resource control
  • the aggregated carrier is used for transmission of services.
  • the carrier that maintains the RRC connection with the UE is called a primary carrier component (PCC), and the corresponding cell is called a primary cell (Primary Cell, abbreviated as Pcell);
  • Pcell Primary Cell, abbreviated as Pcell
  • the carrier is called a secondary carrier component (SCC), and the corresponding cell is called a secondary cell (Scell).
  • the primary carrier and the primary cell are always activated, the secondary carrier and the secondary cell are deactivated by default, and need to be activated before being used, and the secondary carrier and the secondary cell can pass the activated carrier and the cell.
  • the activation is performed; likewise, the secondary carrier can also be deactivated by the activated carrier and the cell.
  • the PDCCH (Physical downlink control channel)/PDSCH (Physical downlink shared channel)/PUSCH (Physical uplink shared channel) of the PCC are all on the PCC, and the PDCCH of the SCC is used. /PDSCH/PUSCH may be on different CCs.
  • the information of the uplink and downlink data packet size is only notified to the primary carrier, and the activated secondary carrier cannot receive the information of the data packet size. Therefore, in the scenario of such carrier aggregation, the related technical solutions still have the following needs to be solved.
  • a method for packet splitting is applied to a carrier aggregation technology, and the method includes:
  • the data packets to be scheduled by the UE in the next time or time period are split according to the ratio of the current UEs on the different cells/carriers in the previous time or time period.
  • the method further includes: before determining a ratio of rates of current UEs on different cells/carriers in a previous time or a time period, the eNB splits the current UE to be scheduled data packets by a fixed ratio. .
  • the method further includes: disassembling, according to a ratio of an average rate of the current UE on a different cell/carrier in a previous time or a time period, the data packet to be scheduled by the UE at the next time or time period.
  • the eNB allocates the remaining resources to the UEs that are aggregated on the current cell/carrier.
  • the determining a ratio of rates of current UEs on different cells/carriers in a previous time or a time period includes:
  • the scheduling capability includes one or more of the following: a channel quality of the UE, a scheduled scheduling resource, and a scheduling number.
  • the method further comprises: after determining the ratio of the rates of the users on different cells/carriers according to the rate on each cell/carrier, correcting the ratio of the rates on the acquired different cells/carriers.
  • a device for splitting data packets is applied to a carrier aggregation technology, and the device includes:
  • a rate ratio determining module configured to determine a ratio of rates of current user equipment UEs on different cells/carriers in a previous time or time period
  • the data packet splitting module is configured to split the data packet to be scheduled by the UE in the next time or time period according to the ratio of the current UE's rate on different cells/carriers in the previous time or time period.
  • the device further includes:
  • the data packet initial splitting module is configured to: before the rate ratio determining module determines the ratio of the current UE's rate on different cells/carriers in the previous time or the time period, perform the current UE to be scheduled data packets in a fixed ratio. Split.
  • the device further includes:
  • a redistribution module configured to: in the data packet splitting module, perform, according to a ratio of an average rate of the current UE on a different cell/carrier in a previous time or a time period, the data packet to be scheduled by the UE at the next time or time period After splitting, there are unscheduled remaining resources on the cell/carrier aggregated after splitting, and these remaining resources are allocated to UEs that are aggregated on the own cell or carrier.
  • the rate ratio determining module determines a ratio of rates of current UEs on different cells/carriers in a previous time or time period, including:
  • the scheduling capability includes one or more of the following: a channel quality of the UE, a scheduled scheduling resource, and a scheduling number.
  • the method further includes: after determining the ratio of rates of users on different cells/carriers according to rates on respective cells/carriers, correcting the acquired on different cells/carriers The ratio of the rate.
  • An evolved node the evolved node comprising the packet splitting device.
  • a computer readable storage medium storing computer executable instructions that, when executed by a processor, implement the data packet splitting method.
  • the embodiment of the invention discloses a method, a device, an evolved node and a computer readable storage medium for data packet splitting.
  • the solution of the embodiment of the invention can fill the data packet splitting under the carrier aggregation function, and fully utilizes different
  • the carrier or the resource of the cell reduces the waste of the carrier or the cell resource, and maximizes the scheduling rate and service experience of the user.
  • FIG. 1 is a schematic flowchart of a method for splitting a data packet according to an embodiment of the present invention
  • FIG. 2 is a schematic flowchart of another method for splitting a data packet according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of a device for splitting a data packet according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a device for splitting a second data packet according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a device for splitting a third data packet according to an embodiment of the present invention.
  • FIG. 6 is an evolved node with a packet splitting function according to an embodiment of the present invention.
  • the embodiment of the invention provides a method, a device, an evolved node and a computer readable storage medium for data packet splitting, which are used to fill in the blank of the data packet splitting technology under the carrier aggregation function, and fully utilize different carriers or cells. Resources can reduce the waste of carrier or cell resources and maximize the scheduling rate and service experience of users.
  • the eNB determines the rate of the current UE on different cells/carriers in the previous time or time period. The ratio is then split according to the ratio of the current UE's rate on different cells/carriers in the previous time or time period to the data packets to be scheduled by the UE in the next time or time period. Before determining the ratio of the current UE's rate on different cells/carriers in the last time or time period, the eNB may demodulate the current UE to be scheduled data packets in a fixed ratio. Minute.
  • the eNB may allocate the remaining resources to the UEs that are aggregated on the local cell or the carrier according to a fixed ratio.
  • the method and device for splitting data packets disclosed in the embodiments of the present invention, the evolved node and the computer readable storage medium can fill the blank in the field of data packet splitting under the carrier aggregation function, and fully utilize different carriers or cells.
  • the resource reduces the waste of carrier or cell resources, and maximizes the scheduling rate and service experience of the user.
  • a method for data packet splitting is applied to the field of carrier aggregation technology.
  • the method is as shown in FIG. 1 and includes steps S101 to S102:
  • the eNB determines a ratio of rates of current UEs on different cells/carriers in a previous time or time period.
  • S102 The eNB splits the data packet to be scheduled by the UE in the next time or time period according to the ratio of the current UE's rate on different cells/carriers in the previous time or time period.
  • the eNB For the remaining resources that are not scheduled on the cell/carrier aggregated after the split, the eNB allocates the remaining resources to the UEs that are aggregated on the local cell or carrier.
  • the ratio of the rate may be a ratio of the corrected rate.
  • the method further includes: before the eNB determines the ratio of the current UE's rate on different cells/carriers in the last time or time period, the eNB may perform the current UE to be scheduled data packets in a fixed ratio. Split.
  • a first embodiment of the present invention provides a method for splitting a data packet. As shown in FIG. 2, the method includes the following steps S201 to S203:
  • the eNB performs the current ratio at a fixed ratio before determining the ratio of the current UE's rate on different cells/carriers in the previous time or time period.
  • the data packets to be scheduled by the UE are split.
  • the eNB determines a ratio of rates of current UEs on different cells/carriers in a previous time or time period.
  • S203 Split a data packet to be scheduled by the UE in a next time or time period according to a ratio of rates of current UEs on different cells/carriers in a previous time or a time period.
  • the ratio of the rate may be a ratio of the corrected rate.
  • the eNB For the remaining resources that are not scheduled on the cell or carrier that are aggregated after the split, the eNB allocates the remaining resources to the UEs that are aggregated on the local cell or carrier.
  • the eNB determines the ratio of the average rate of the current UE on different cells/carriers in the previous time or time period, including steps S301-S303:
  • the eNB first determines a scheduling capability of the UE on each cell/carrier, where the scheduling capability includes a channel quality of the UE, a scheduled scheduling resource, and a scheduling number.
  • the eNB determines, according to the channel quality of the UE, the occupied scheduling resource, and the number of scheduling times, the rate of the UE on the cell/carrier.
  • S303 Determine a ratio of rates of UEs on different cells/carriers according to rates on respective cells/carriers.
  • the number of bits that the UE has recently scheduled is X according to the protocol, and the UE is combined with the UE in the cell/carrier.
  • the rate of the UE on other cells/carriers can be determined.
  • s, n represents the cell/carrier number.
  • the average channel quality of the UE in a period of time on a certain cell/carrier is M, and the average occupied resource is N, according to the protocol, the average number of bits per scheduling in the time period of the UE is X.
  • the rate of the UE on the cell/carrier can be determined by combining the number of times Y scheduled by the UE in the previous time period on the cell/carrier.
  • the number of scheduling times Y in the time period needs to be converted into 1s.
  • the number of times the UE is scheduled Y', and then determines that the average rate of the UE on the cell/carrier is Z X*Y'bit/s.
  • the average rate of the UE on other cells/carriers Zn bit/s can be calculated, and n represents the cell/carrier number. Finally, the ratio of the average rates is determined according to the average rate of the UE on different cells/carriers.
  • Step 11 The eNB performs equalization splitting between the two carriers of the data packet to be scheduled by the UE.
  • Step 12 The eNB determines a ratio of an average rate of current UEs on different cells/carriers at a previous moment;
  • the channel quality of the Ue on the carrier 1 is 22, and the occupied resource is 32.
  • the channel quality of the Ue on the carrier 2 is 16 and the occupied resource is 40.
  • the number of bits that the UE has recently scheduled is 12216 bits
  • Step 13 When the next data packet to be scheduled arrives, the eNB splits the data packet to be scheduled between carrier 1 and carrier 2 according to a ratio of 1:1.25.
  • Step 21 The eNB splits the data packet to be scheduled by the UE between two carriers.
  • Step 22 The eNB determines a ratio of an average rate of the current UE on different cells/carriers in the previous time period;
  • the average channel quality of the carrier 1 in the previous time period is 24, and the average occupied resource is 40.
  • Step 23 When the next scheduling period comes, the eNB splits the data packet to be scheduled between carrier 1 and carrier 2 according to a ratio of 1:1.25.
  • Step 31 The eNB enters the data packet to be scheduled by the UE between the two carriers by a ratio of 1:2. Line splitting;
  • Step 32 The eNB determines a ratio of an average rate of the current UE on different cells/carriers in the previous time period;
  • the average channel quality of the Ue in the most recent rate splitting period on the carrier 1 is 10, and the average occupied resource is 40.
  • the average number of bits per scheduling in the latest rate splitting period of the UE is 6200 bits.
  • the average channel quality of the Ue in the most recent rate splitting period on carrier 2 is 10, and the average occupied resource is 20, and there is an average of 10 RB resources remaining on the carrier in the statistical period.
  • Step 33 The eNB corrects the ratio of the rates on the carrier 1 and the carrier 2, because in the initial state, the eNB splits the data packet to be scheduled by the UE between the two carriers by a ratio of 1:2, so after the correction
  • step 34 when the next scheduling period arrives, the eNB splits the data packet to be scheduled between carrier 1 and carrier 2 according to the ratio 2: 4.26 of the corrected average rate.
  • a first embodiment of the present invention provides a method for data packet splitting, where the method includes the following steps:
  • the eNB When the UE accesses the PCC or Pcell and the SCC or Scell is also activated, the eNB The data packet to be scheduled by the UE is split by a fixed ratio. For the remaining resources that are not scheduled on the cell or carrier that are aggregated after the splitting, the eNB allocates the remaining resources to the UEs that are aggregated on the local cell or carrier according to a certain ratio.
  • the embodiment of the present invention discloses a device 01 for packet splitting, which is applied to a carrier aggregation technology. As shown in FIG. 3, the device includes:
  • the rate ratio determining module 02 is configured to determine a ratio of rates of current UEs on different cells/carriers in a previous time or time period.
  • the data packet splitting module 03 is configured to split the data packet to be scheduled by the UE in the next time or time period according to the ratio of the current UE's rate on different cells/carriers in the previous time or time period.
  • Embodiment 3 is a diagrammatic representation of Embodiment 3
  • Embodiment 3 of the present invention provides a device for splitting data packets 01:
  • the apparatus includes: a rate ratio determining module 02 configured to determine a ratio of rates of current UEs on different cells/carriers in a previous time or time period; and a data packet splitting module 03 configured to be based on current The proportion of the rate of the UE on different cells/carriers in the last time or time period splits the data packets to be scheduled by the UE in the next time or time period.
  • a rate ratio determining module 02 configured to determine a ratio of rates of current UEs on different cells/carriers in a previous time or time period
  • a data packet splitting module 03 configured to be based on current The proportion of the rate of the UE on different cells/carriers in the last time or time period splits the data packets to be scheduled by the UE in the next time or time period.
  • the apparatus further includes a packet initial splitting module 04, which is set at the rate ratio
  • the example determining module 02 determines, before the ratio of the current UEs on the different cells/carriers in the previous time or the time period, splits the data packets to be scheduled by the current UE in a fixed ratio.
  • the apparatus further includes a redistribution module 05, which is arranged to be proportional to the average rate of the current UE in different cells/carriers according to the current UE time or time period in the data packet splitting module 03.
  • the eNB allocates the remaining resources to the current cell or the unreserved remaining resources on the aggregated cell/carrier after the splitting.
  • UE on the carrier.
  • the fourth embodiment of the present invention further provides an evolved node 11 for packet splitting.
  • the evolved node includes the device 01 for splitting the data packet.
  • Embodiment 5 is a diagrammatic representation of Embodiment 5:
  • the fifth embodiment of the present invention further provides a computer readable storage medium, which stores computer executable instructions, and when the computer executable instructions are executed by the processor, implements the data packet splitting method according to the embodiment of the present invention.
  • a method, an apparatus, an evolved node, and a computer readable storage medium for packet splitting are when a UE accesses a PCC or a Pcell and has an SCC or an Scell.
  • the eNB splits the data packet to be scheduled by the UE at a fixed ratio.
  • the eNB determines the ratio of the current UE's rate on the different cell/carrier in the previous time or time period, and then according to the current UE at the previous time or time period. The ratio of the rates on the intrinsic different cells/carriers splits the data packets to be scheduled by the UE at the next time or time period.
  • the embodiment of the invention can fill the data packet splitting under the carrier aggregation function, fully utilizes resources of different carriers or cells, reduces waste of carrier or cell resources, and maximizes the scheduling rate and service experience of the user.
  • embodiments of the present invention can be provided as a method, or a computer program product.
  • embodiments of the invention may take the form of a hardware embodiment, a software embodiment, or a combination of software and hardware.
  • embodiments of the invention may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) in which computer usable program code is embodied.
  • Embodiments of the invention are described with reference to flowchart illustrations and/or block diagrams of methods and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG.
  • These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.
  • all or part of the steps of the above embodiments may also be implemented using an integrated circuit.
  • the steps may be separately fabricated into individual integrated circuit modules, or a plurality of modules or steps may be fabricated into a single integrated circuit module.
  • the devices/function modules/functional units in the above embodiments may be implemented by a general-purpose computing device, which may be centralized on a single computing device or distributed over a network of multiple computing devices.
  • the device/function module/functional unit in the above embodiment When the device/function module/functional unit in the above embodiment is implemented in the form of a software function module and sold or used as a stand-alone product, it can be stored in a computer readable storage medium.
  • the above mentioned computer readable storage medium may be a read only memory, a magnetic disk or an optical disk or the like.
  • the embodiment of the invention can fill the data packet splitting under the carrier aggregation function, fully utilizes resources of different carriers or cells, reduces waste of carrier or cell resources, and maximizes the scheduling rate and service experience of the user.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé et un appareil permettant de diviser un paquet de données, un nœud évolué, et un support d'informations lisible par ordinateur. Le procédé comprend : la détermination, lorsqu'un équipement d'utilisateur (UE) accède à une PCC ou une Pcell, et qu'une SCC ou une Scell sont également activées, d'un rapport de débits de l'UE en cours dans différentes cellules ou sur différentes porteuses à un moment précédent ou au cours d'une période de temps précédente ; et la division, en fonction du rapport de débits de l'UE en cours dans différentes cellules/porteuses au moment précédent ou au cours de la période de temps précédente, d'un paquet de données devant être programmé à un moment suivant ou au cours d'une période de temps suivante.
PCT/CN2016/080161 2016-01-07 2016-04-25 Procédé et appareil de division d'un paquet de données, nœud évolué et support d'informations lisible par ordinateur WO2016197722A1 (fr)

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CN201610011164.3A CN106954265B (zh) 2016-01-07 2016-01-07 一种数据包拆分的方法、装置和演进型节点
CN201610011164.3 2016-01-07

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US20090196273A1 (en) * 2008-02-01 2009-08-06 Samsung Electronics Co., Ltd. Apparatus and method for transmitting data in wireless communication system
CN102186250A (zh) * 2011-04-26 2011-09-14 北京邮电大学 一种分配成员载波的方法及装置
CN102300330A (zh) * 2011-08-05 2011-12-28 郑侃 一种下行资源调度方法
CN103369684A (zh) * 2013-07-18 2013-10-23 北京北方烽火科技有限公司 一种基于载波聚合的资源调度方法及装置

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CN102014496B (zh) * 2009-10-16 2013-07-31 电信科学技术研究院 一种上行控制信道资源配置方法、设备和系统
CN102761904B (zh) * 2011-04-28 2017-10-10 中兴通讯股份有限公司 数据传输方法、设备及系统
CN104602349B (zh) * 2013-10-31 2020-01-03 索尼公司 载波分配装置和方法、以及终端
WO2015147578A1 (fr) * 2014-03-26 2015-10-01 삼성전자 주식회사 Procédé et appareil permettant une communication d'agrégation de porteuses dans un système de communication sans fil

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US20090196273A1 (en) * 2008-02-01 2009-08-06 Samsung Electronics Co., Ltd. Apparatus and method for transmitting data in wireless communication system
CN102186250A (zh) * 2011-04-26 2011-09-14 北京邮电大学 一种分配成员载波的方法及装置
CN102300330A (zh) * 2011-08-05 2011-12-28 郑侃 一种下行资源调度方法
CN103369684A (zh) * 2013-07-18 2013-10-23 北京北方烽火科技有限公司 一种基于载波聚合的资源调度方法及装置

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