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WO2012174727A1 - Procédé pour programmer un traitement de données dans un système de communication cellulaire - Google Patents

Procédé pour programmer un traitement de données dans un système de communication cellulaire Download PDF

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Publication number
WO2012174727A1
WO2012174727A1 PCT/CN2011/076223 CN2011076223W WO2012174727A1 WO 2012174727 A1 WO2012174727 A1 WO 2012174727A1 CN 2011076223 W CN2011076223 W CN 2011076223W WO 2012174727 A1 WO2012174727 A1 WO 2012174727A1
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Prior art keywords
cell
mobile users
mobile
processing
data
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Inventor
Mikael Isaksson
Jibin Wang
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN201180001402.8A priority Critical patent/CN103026766B/zh
Priority to PCT/CN2011/076223 priority patent/WO2012174727A1/fr
Publication of WO2012174727A1 publication Critical patent/WO2012174727A1/fr
Anticipated expiration legal-status Critical
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]

Definitions

  • the present invention relates to a method for scheduling processing of data in a cellular wireless communication system, and more specifically to a method according to the preamble of claim 1. Furthermore, the invention also relates to a computer program, a computer program product, a method in a base station, and a base station thereof.
  • CoMP Coordinated Multipoint Transmission
  • UEs User Equipments
  • ASICs Application Specific Integrated Circuits
  • the performance gain comes from the fact that a mobile user's uplink signal is received by several different cells and thereafter combined together by a so called serving cell to which the mobile users belongs.
  • Combining techniques may be joint detection of complex Inphase and Quadrature phase (IQ) data (frequency domain samples) or combining of soft bits (Log Likelihood Ration (LLR) data).
  • IQ Inphase and Quadrature phase
  • LLR Log Likelihood Ration
  • the CoMP technique have e.g. been proposed for Long Term Evolution (LTE) and Long Term Evolution Advanced (LTE-A) communication systems.
  • CoMP Main challenges when employing CoMP is that user data need to be transported between the processing units of cooperating cells and the processing unit of the serving cell at very high speed and with low latency.
  • the processing units may be on the same ASIC, in different ASICs but on the same baseband board, on different boards, or even on different sites. It is important that employment of CoMP must not increase the limit of maximum allowed system latency.
  • Baseband processing in an LTE ASIC can be seen as a complex interaction between processing units, data and antenna interfaces, and memories.
  • Processing units serve to execute baseband algorithms and can be Digital Signal Processors (DSPs), specific hardware accelerators or building blocks, micro controllers, etc.
  • DSPs Digital Signal Processors
  • the way the baseband components are mapped and connected together is usually referred to as baseband architecture.
  • the baseband architecture can take on many shapes depending on the requirements of the system.
  • the baseband architecture can be built for maximizing flexibility, i.e. high degree of software configurability, which often means that the DSPs are the most common processing unit.
  • the baseband architecture may also be optimized for performance and for minimizing power consumption or ASIC footprint (i.e. chip/silicon area needed) implying a more hardware accelerator oriented baseband architecture, which in most cases leads to a less flexible baseband architecture.
  • ASIC footprint i.e. chip/silicon area needed
  • processing units in baseband architecture is further dependent on the opportunity for parallel processing. If the inherent algorithms are feasible for parallel processing, a good solution may be to have many processing nodes that work in parallel at a lower clock speed, that a single node executing the algorithm in sequence at a high clock speed.
  • An object of the present invention is to provide a method and a device which solves and/or mitigates the drawbacks of prior art. More specifically, an object of the present invention is to provide a method and a device which solves the problem of latency and bandwidth requirements when employing uplink combining techniques using data from more than one cell in a cellular wireless communication system.
  • Another object of the invention is to provide an alternative method and a device for scheduling processing of data in a cellular wireless communication system.
  • the objects are achieved with a method for scheduling processing of received data in a cellular wireless communication system, said communication system being adapted for combining uplink data received in two or more cells for mobile users; said communication system comprising a first cell being a serving cell for one or more mobile users and at least one second cell being a cooperating cell associated with said first cell for combining uplink data;
  • the method comprises the steps of:
  • the objects are also achieved with a method in a base station for scheduling processing of received uplink data in a cellular wireless communication system; said communication system being adapted for combining uplink data received in two or more cells for mobile users, and comprising a first cell being a serving cell for one or more mobile users and at least one second cell being a cooperating cell associated with said first cell for combining uplink data.
  • the method in the base station comprises the steps of:
  • the method in the base station may be modified, mutatis mutandis, according to different embodiments of the method in the cellular wireless communication system.
  • the invention further relates to a computer program and a computer program product corresponding to the different methods above.
  • the objects are also achieved with a base station in a cellular wireless communication system, said base station being configured to receive and process uplink data associated with mobile users in said communication system; said communication system being adapted for combining uplink data received in two or more cells for mobile users, and comprising a first cell being a serving cell for one or more mobile users and at least one second cell being a cooperating cell associated with said first cell for combining uplink data; wherein being further configured to:
  • the invention provides a solution to relax inter-cell communication requirements, such as latency and bandwidth, in cellular wireless communication systems employing uplink combining techniques using data from more than one cell.
  • the invention is advantageous for LTE systems employing CoMP.
  • processing rules can be set that maximizes the inter-cell transmission times if cooperating cells apply the same rule and mobile user classification.
  • the invention therefore takes a holistic view on data processing that need to be performed within a time interval (such as Transmission Time Interval (TTI)) for mobile users and for involved cooperating cells, and sets processing order that maximizes the time slots for transporting data between the different cooperating cells.
  • TTI Transmission Time Interval
  • the impact of the present invention for baseband architectural design is that both the software and hardware architecture will provide means for scheduling the processing order of data in a flexible and arbitrary fashion, and also being able to fragment the processing for a single mobile user if deemed necessary.
  • the time for passing data between cooperating cells can be extended which relax the bandwidth requirements for inter-cell communication links.
  • Flexible processing order means flexibility of deciding on the order of processing mobile users belonging to the same TTI/subframe. It also implies that the processing of each mobile user can be fragmented, e.g. separating different processing steps such as first demodulation, regeneration and second demodulation.
  • FIG. 1 illustrates three processing steps (DM 1, Reg., DM 2) in LTE;
  • Figure 2 illustrates a mobile user by mobile user processing order, where all three processing steps are conducted in sequence for each mobile user
  • Figure 3 illustrates a processing order where each of the three processing steps are performed for all mobile users in sequence
  • Figure 4 illustrates an RB allocation scenario including one MC mobile user, where the upper cell is a serving cell and the lower cell is a cooperating cell;
  • FIG. 5 illustrates processing order of the RB allocation scenario in figure 4, where the processing order arranged for maximizing the time to pass data from the cooperating cell to the serving cell;
  • Figure 6 illustrates a RB allocation scenario where a local mobile user in a cooperating cell is overlapping a MC mobile user belonging to a serving cell;
  • FIG. 7 illustrates the processing steps and passing of data between the cooperating cell and the serving cell in the example in figure 6;
  • Figure 8 illustrates processing order in a serving cell and in a cooperating cell where RBs of a MC mobile user are overlapped by RBs of a local mobile user;
  • Figure 9 illustrates processing order where a regenerated signal from a MC mobile user in a serving cell is sent to a cooperating cell for cancelling its signal contribution to the decoding of the local mobile user;
  • Figure 10 illustrates processing order of the three processing steps in the serving and cooperating cells related to the example in figure 9;
  • Figure 11 illustrates radio resource sharing between cell A and cell B, and the compound boundaries between overlapping mobile users;
  • Figure 12 illustrates the RB groups where data need to be inter-exchanged between cell A and B;
  • Figure 14 illustrates principles of transport time and processing order for mobile users of different types. Detailed Description of Embodiments of the Invention
  • uplink combining data processing due to the latency and bandwidth requirements needed for high speed transportation of data between different processing units in cellular wireless communication systems.
  • the demodulation of uplink signals in e.g. LTE systems is a very complex process where massive signal processing needs to be performed for each subframe within only 2.35 ms. If CoMP is added to the demodulation process it is necessary that the processing is still captured within the time frame of 2.35 ms to meet the latency requirements.
  • a challenging part is to pass the data from one processing cell to another processing cell. To not violate the latency budget, the bandwidth requirements between processing cells need to be in the order of 10 Gbps or ever more.
  • a straight forward brute-force solution could be to provide each ASIC with very high speed interfaces that are powerful enough to not override a latency budget.
  • interfaces providing such high bitrates also consume high power and allocates a significant amount of silicon area, which means that such a solution is complex and expensive to implement.
  • An alternative way that may be considered is to co-locate baseband processing of all Resource Blocks (RBs) where CoMP is employed onto the same ASIC, and the RBs where CoMP is not employed is processed by its original cells. This line of action may give some advantages in terms of reducing interchip communication (i.e.
  • the demo dulation/deco ding processing in LTE can be divided into a number of steps. Firstly, there is the Antenna Processing (AP) including OFDM demodulation and channel estimation. This is done for each antenna separately and independently. After the antenna processing, frequency domain IQ data is received from each antenna and equalization and decoding is performed on these data. If the antenna processing is omitted, the demodulation/decoding processing can be divided into three steps as illustrated in figure 1 :
  • AP Antenna Processing
  • DM 1 First demodulation step (DM 1): For each mobile user, the frequency domain data is equalized, IDFT transformed and de-mapped into LLR values forming a transport block. The transport block is thereafter de-interleaved, de-rate matched and turbo decoded (DC). A CRC check is performed on the transport block, and if the transport block is correct it is passed to higher layers in the system.
  • the first demodulation step outputs hard bits and soft bits.
  • Regeneration step If the CRC is not correct, the receiver can decide to make a second iteration pass, a so called advanced receiver processing. Then the LLR from the turbo decoder is processed to regenerate frequency domain IQ data together with rate matching and transport block interleaving.
  • Second demodulation step (DM 2) In this third step the regenerated IQ data from the regeneration step is demodulated a second time.
  • the second demodulation step it is possible to cancel interference from other mobile users using the same radio resources, such as RBs, if their regenerated IQ data is available.
  • This can be MIMO user, or it can be local mobile users or other CoMP mobile users from neighbouring cells, in the case of CoMP.
  • the similar procedure of equalization, IDFT, de-mapping, de-interleaving, de-rate matching and turbo decoding is performed. It should be noted that the regeneration and second demodulation steps are not always conducted, since the CRC may be correct after the first demodulation step. Sometimes, only the regeneration step is performed if there is another mobile user sharing the same RBs that may use the regenerated data for interference cancellation. In this case only the regeneration step is conducted.
  • L2, L3, L4 processing units may process mobile user by mobile user, including all three steps, for each mobile user as shown in figure 2.
  • a second way to process the mobile users could be as shown in figure 3. In this case the processing starts with the first modulation for all users, and then continues with regeneration of all mobile users, and lastly the second demodulation.
  • the inventors have realised that the processing order should be adapted to latency and bandwidth requirements of uplink combining techniques, such as CoMP. Hence, the processing order should be based on classification of mobile users in cellular wireless communication system to achieve the objectives.
  • the present invention relates to a method for scheduling processing of received data in a cellular wireless communication system.
  • the communication system is adapted for combining uplink data received in two or more cells for mobile users such as in a LTE CoMP system.
  • the system comprise a first cell which is a serving cell for mobile users and one or more cooperating cells associated with the first cell. Uplink data received in the serving cell and in cooperating cells may be combined as described above.
  • the method comprises the steps of: - classifying mobile users into different types based on how radio resources are shared by different mobile users in the system.
  • the radio resources are e.g. spectrum allocated for the first and the second cells, respectively; and
  • FIG 4 an example of RB allocation of mobile users are depicted for a serving cell and an associated cooperating cell.
  • the serving cell can be seen as the cell to which a mobile user belongs and where the data of the mobile user is decoded and sent to higher layers in the communication system.
  • the cooperating cell on the other hand helps the serving cell with processing but will not decode the data of the mobile user.
  • the serving cell has in this case four users, i.e. three local users (LI, L2, L3) and one multi- cell coordinated (MC) mobile user which can be seen as a CoMP mobile user.
  • the RB allocation for the mobile users is varying from a few RBs up to 100 RBs depending on the bandwidth demand and channel conditions.
  • the cooperating cell has four local mobile users (LI, L2, L3, L4), but also serves the MC mobile user belonging to the serving cell with allocated RBs.
  • the MC mobile user's RB allocation is placed on the first block of RBs.
  • each mobile user can be processed independently of all the other mobile users in the system. This means that the order of processing can be set in an arbitrary way by the processing scheduler, a property that is used in the present method.
  • the serving cell first process the local mobile users LI, L2 and L3 before starting to process the MC mobile user, while the cooperating cell starts by sending the MC mobile user's antenna data to the serving cell, and thereafter process its local mobile users LI, L2, L3, L4.
  • the time for transporting the data from the cooperating cell to the serving cell is maximized.
  • this resource sharing it is necessary to support MC mobile user IC since the same radio resources (such as radio spectrum) is used by two or more mobile users. Hence, in order to decode one particular mobile user, the signals from other mobile users have to be cancelled/subtracted accordingly.
  • a first data transfer from a cooperating cell is passed to a serving cell, denoted A in figure 7. If the data is decoded with error, a second decoding process is performed and the data is regenerated in both cells. If the data for the local mobile user LI in the cooperating cell is decoded correctly, its regenerated IQ data sent to the serving cell for cancellation before the second demodulation/decoding is performed.
  • the second data transport to the serving cell is denoted C in figure 7. Note that both the serving and the cooperating cell may benefit from interference cancellation since the cooperating cell has scheduled a local mobile user on the same RBs as for the MC mobile user, denoted B in figure 7.
  • the cooperating cell process both first and second demodulation for local user LI after having sent data for the MC mobile user, and the serving cell process the MC mobile user last the time for data transport has been maximized as illustrated in figure 8. If the CRC is correct, the cooperating cell sends the regenerated IQ data for the local user LI to the serving cell for interference cancellation. If the CRC is correct for the serving cell, the second data transportation is irrelevant. It may however be better to send the regenerated data irrespective of if it will be used or not, rather than not being able to use the regenerated data because of transport time constraints.
  • the cooperating cell would benefit from cancelling the MC mobile user regenerated data from the local mobile user's data in a second demodulation step, illustrated by the dashed arrow in figure 7.
  • the processing order need to take into account that regenerated data may be passed both ways shown as B and C in figure 9.
  • a way to handle this is to split the processing of the local mobile user LI in the cooperating cell into two parts and handle other local mobile users L2 and L3 in between.
  • the processing of the MC mobile user in the serving cell is split into two parts, wherein local mobile users are processed in between.
  • Figure 10 illustrates how the scheduling could be arranged in the serving cell and in the cooperative cell related to the example.
  • CoMP is processed on RB level which means that the CoMP scenario is the same within a RB, but may be different for neighbouring RBs.
  • the resource allocation between mobile users will vary, and there is no correlation between mobile users in neighbouring cells.
  • a mobile user using a large amount of the radio resources in one cell may overlap several mobile users in a neighbouring cell.
  • One mobile user in one cell may overlap another mobile user in the other cell with only one or a few RBs. It is therefore realised that the number if different combinations is high.
  • the mobile users in a cellular communication system are classified into different types depending on how radio resources are shared by mobile users. Based on this classification, the processing order is determined for the mobile users in the communication system.
  • radio resource sharing in two cells A and B is illustrated. In each cell there are several mobile users occupying certain amounts of RBs each.
  • the indices A to I serve to mark the compound boundaries between mobile users in the two cells A and B. As can be seen in figure 11 there is not two mobile users that share the same exact set of RBs. There is also overlap in all cases.
  • the inter-cell exchange data is often a fraction of the other cell users RBs, and may also originate from two or more mobile users.
  • the mobile users can be classified into different Types (T) according the principle where two parameters are used in the classification.
  • the first parameter indicates whether a mobile user is a local mobile user (i.e. a mobile user belonging to one cell and which is not joint detected by multiple cells) or a multi-cell coordinated (MC) mobile user (i.e. a mobile user which is joint detected by multiple cells such as a CoMP mobile user) in a serving cell
  • the second parameter indicates if the mobile user shares radio resources with a local mobile user or a multi-cell coordinated mobile user in a cooperating cell:
  • Type 0 (Local/-) is a local mobile user in the case without cell A or B uplink combining and no inter-cell exchange of data.
  • the user UEO in cell A (between RB index A and B) in figure 11 is a type TO mobile user. This case is illustrated in figure 13 A.
  • Type 1 (MC/Local) is a MC mobile user where all or parts of its RBs are shared with one or more local mobile users in the cooperating cell. Both users UE3A and UE3B in the example in figure 11 falls under this category. This case is illustrated in figure 13C.
  • Type 2 (Local/MC): type 2 (T2) is a local mobile user sharing fully or partly its RBs with a MC user in the other cell.
  • UEOB UE2A
  • UE2B UE4A
  • Type 3 (MC/MC): type 3 (T3) is a MC mobile user sharing radio resources with one or more MC mobile users in the cooperating cell and possibly also with one or more mobile local users in the cooperating cell.
  • type T3 mobile users belong to both cooperating and serving cells.
  • User UE1A and UE1B in the example in figure 11 fall under type T3 category. The decoding for a type T3 mobile user need to be divided into two parts since the topology model will change. Taking UE1A as an example, for RBs between index B and C, the topology model can be shown in figure 13C. For RBs between C and D figure 13B applies.
  • Type 4 (-/MC) type 4 (T4) is a MC mobile user which does not share its RBs with any other mobile users in the system. This means that there is no local mobile user in the cooperating cell that transmits data on the same RBs as for the MC mobile user.
  • Mobile user UE5A in figure 11 is an example of a type T4 mobile user. This case is illustrated in figure 13D.
  • a mobile user in cell A is of type Tl
  • the mobile user in cell B that it interacts with is then of type T2 and vice versa.
  • a mobile user is of type T3
  • the mobile user it interacts with in the other cell also is a type T3 mobile user which is due to the definition of the different types according to the invention. For example, a type Tl mobile user is mirrored on a type T2 mobile user while a type T3 mobile user is mirrored on an another type T3 mobile user, etc.
  • mobile users have been classified into different user types TO to T4. From this classification it can see that a type Tl mobile user in cell A can be paired with a type T2 mobile user in cell B. Furthermore, a type T3 mobile user in cell A is paired with a type T3 mobile user in cell B as explained above. From these relationships, the processing of data of a user pair is separated as much as possible to allow for maximum time to transport IQ data between the first and second demodulation.
  • the timing diagram in figure 14 shows principles of transport time and processing order for mobile users of different types in a cellular wireless communication system according to an embodiment of the invention in which the processing order is also based on transporting times of data between the serving cell and the cooperating cell.
  • the transport time between user pairs is shown, and in the lower part of figure 14, the processing order of mobile users of different types is shown:
  • Time T 0 in figure 14 is the time needed for transporting antenna data (IQ-data) from one cell to the other cell. No CoMP processing can be performed before T 0 . Before T 0 it is only possible to process mobile users of type TO and T2, respectively, which therefore should be performed. To allow for maximum transport time, processing of type T2 mobile user should proceed processing of type TO mobile users;
  • Time Zj is the time from the finalization of the first demodulation of type T2 mobile users and until the second demodulation step of type Tl mobile users starts;
  • Time T 2 starts when the first demodulation step is finalized for type T3 mobile users, and it ends when the second demodulation of type T3 mobile user starts;
  • Time T 3 starts when the first demodulation is finalized for type Tl mobile users, and it ends when the second demodulation of type T2 mobile users starts.
  • the scheduling rule would be as the following according to an embodiment:
  • Type T3 mobile users - first demodulation
  • Type Tl mobile users - first demodulation
  • Type TO mobile users - first and second demodulation
  • Type T2 mobile users - second demodulation.
  • processing is performed that can be conducted from time zero until IQ data is received from another cell which ends at time TO.
  • the priority is to process first type T2 mobile users (first demodulation DM 1) since they are paired with type Tl mobile users, and regenerated data need to be transmitted early. If there is time left for processing before TO, then type TO mobile users are processed in step 2.
  • step 3 the first demodulation of type T3 mobile users is conducted and in step 4 the first demodulation of type Tl mobile users is performed.
  • step 5 and 6 type TO (non MC) mobile users and type T4 (exclusive MC) mobile users are processed. Thereafter in steps 7-9, the second demodulation of type Tl, type T3 and type T2 mobile users are processed.
  • the RBs used for MC mobile users probably will be only a fraction of the total amount of RBs, and most likely less than 20% on the average of the total number of RBs, meaning that the remaining 80% of the RBs are radio resources used by local LTE mobile users that are processed without inter-cell exchange of data.
  • the initial time T 0 sets a limit on when any CoMP processing can start. Therefore a strategy is to start with processing type T2 mobile users since a paired type Tl MC mobile user in the other cell is depending on the type T2 data for the second demodulation. It should also be noted that the processing of the type T3 users and the type Tl mobile users could in principle be swapped. Further, a good choice to place the processing of type TO mobile users after the first demodulation of type Tl mobile users and before the second demodulation of type Tl mobile users begins in order to stretch the transport times 7j to T 3 .
  • first and second demodulation can be conducted in a sequence and not in fragmented processing.
  • Transport time T , T 2 and T 3 overlap each other and it may be congestion during several time slots, this fact need probably also be a parameter when deciding on processing order.
  • the pairing of types T1/T2 and types T3/T3 do not mean a complete mirroring.
  • a type Tl mobile user may only partly overlap a type T2 mobile user and vice versa. The same holds for a pair of type T3 mobile users.
  • a MC mobile user can overlap two or more MC mobile users in the other cell, these falls under type T3.
  • Type T4 mobile users should be processed after type TO mobile users since they cannot start the processing before time T 0 .
  • Type T4 mobile users can do both first and second demodulation in sequence, i.e. inter-cell transport of data is made only once.
  • a method according to the present invention may also be implemented in a computer program, having code means, which when run in a computer causes the computer to execute the steps of the method.
  • the computer program is included in a computer readable medium of a computer program product.
  • the computer readable medium may consist of essentially any memory, such as a ROM (Read- Only Memory), a PROM (Programmable Read-Only Memory), an EPROM (Erasable PROM), a Flash memory, an EEPROM (Electrically Erasable PROM), or a hard disk drive.
  • ROM Read- Only Memory
  • PROM PROM
  • EPROM Erasable PROM
  • Flash memory an EEPROM (Electrically Erasable PROM), or a hard disk drive.
  • the invention relates further to a base station device corresponding to the methods described above. It should also be noted that base station may be modified, mutatis mutandis, according to the different embodiments of the method described above.

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Abstract

La présente invention se rapporte à un procédé mis en œuvre dans une station de base et adapté pour programmer un traitement de données reçues sur la liaison montante dans un système de communication cellulaire sans fil. Ledit système de communication est adapté pour combiner des données sur la liaison montante, qui ont été reçues dans au moins deux cellules utilisées par des usagers mobiles. Lesdites cellules comprennent : une première cellule, qui est une cellule de desserte utilisée par un ou plusieurs usagers mobiles ; et au moins une deuxième cellule, qui est une cellule collaborative associée à ladite première cellule pour combiner des données sur la liaison montante. Le procédé mis en œuvre dans la station de base comprend les étapes consistant : à recevoir des données sur la liaison montante associées à des usagers mobiles dans ledit système de communication ; à classifier les usagers mobiles en différents types en fonction de la manière dont des ressources radio sont partagées par lesdits usagers mobiles, lesdites ressources radio étant allouées à ladite première cellule et à ladite ou auxdites deuxièmes cellules, respectivement ; et à traiter des données sur la liaison montante associées à des usagers mobiles suivant un ordre basé sur ladite classification d'usagers mobiles. La présente invention se rapporte d'autre part à un procédé mis en œuvre dans une station de base, ainsi qu'à un programme informatique, à un produit programme informatique et à une station de base correspondants.
PCT/CN2011/076223 2011-06-23 2011-06-23 Procédé pour programmer un traitement de données dans un système de communication cellulaire Ceased WO2012174727A1 (fr)

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CN101777940A (zh) * 2009-01-12 2010-07-14 华为技术有限公司 上行信息的传输方法、装置及系统
WO2011009486A1 (fr) * 2009-07-22 2011-01-27 Nokia Siemens Networks Oy Procédé de coordination des ressources de transmission dans un réseau de communication d'émission/réception multipoints coordonné

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* Cited by examiner, † Cited by third party
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CN103916337A (zh) * 2013-01-06 2014-07-09 中兴通讯股份有限公司 一种长期演进中上行基带数据处理装置和方法
WO2014106426A1 (fr) * 2013-01-06 2014-07-10 中兴通讯股份有限公司 Procédé et dispositif permettant de traiter des données de bande de base de liaison montante dans un lte, et support de stockage informatique
CN103916337B (zh) * 2013-01-06 2019-04-23 中兴通讯股份有限公司 一种长期演进中上行基带数据处理装置和方法

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