WO2010108348A1 - 载波聚合的实现方法以及基站 - Google Patents

载波聚合的实现方法以及基站 Download PDF

Info

Publication number
WO2010108348A1
WO2010108348A1 PCT/CN2009/073472 CN2009073472W WO2010108348A1 WO 2010108348 A1 WO2010108348 A1 WO 2010108348A1 CN 2009073472 W CN2009073472 W CN 2009073472W WO 2010108348 A1 WO2010108348 A1 WO 2010108348A1
Authority
WO
WIPO (PCT)
Prior art keywords
carrier
resource
base station
user terminal
aggregation
Prior art date
Application number
PCT/CN2009/073472
Other languages
English (en)
French (fr)
Inventor
魏巍
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to JP2012501114A priority Critical patent/JP2012521691A/ja
Priority to US13/257,602 priority patent/US8688135B2/en
Priority to EP09842082.1A priority patent/EP2413650B1/en
Publication of WO2010108348A1 publication Critical patent/WO2010108348A1/zh

Links

Classifications

    • 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/0062—Avoidance of ingress interference, e.g. ham radio channels
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/0073—Allocation arrangements that take into account other cell interferences
    • 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
    • H04L5/0091—Signaling for the administration of the divided path
    • 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
    • H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference

Definitions

  • the present invention relates to the field of communications, and in particular to a method for implementing carrier aggregation and a base station.
  • BACKGROUND OF THE INVENTION In a next generation broadband wireless communication network, how to support a larger bandwidth in a bandwidth of a current wireless communication system in a wireless communication network is to improve the throughput of a user terminal (User Terminal, UT) between cells. And a key factor in the average throughput of the UT.
  • LTE Long Term Evolution
  • carrier aggregation is proposed to effectively support larger bandwidth in current wireless communication systems to meet new requirements. Demand for throughput, peak rate, and other metrics in the first generation of wireless standards.
  • Carrier aggregation is a key technology for supporting larger bandwidth in future wireless communication systems. By aggregating different carriers, a carrier with a larger bandwidth is formed, and a UT having a stronger capability is supported on the aggregated bandwidth, for example, in an advanced long-term. Over 100 MHz bandwidth is supported in the Long-Term Evolution Advanced (LTE-Advanced). However, the carrier aggregation discussed in LTE-Advanced does not take into account the effect of inter-cell interference, which plays an important role in inter-cell UT throughput and UT average throughput.
  • LTE-Advanced Long-Term Evolution Advanced
  • the carrier aggregation discussed in LTE-Advanced does not take into account the effect of inter-cell interference, which plays an important role in inter-cell UT throughput and UT average throughput.
  • the aggregated carrier part suffers severe inter-cell interference, even A larger bandwidth is obtained, and the throughput and rate performance of the UT using the partially aggregated carrier is also degraded due to severe inter-cell interference, thereby offsetting the benefits of carrier aggregation.
  • the existing related art does not consider the problem that the inter-cell interference in the carrier aggregation affects the UT throughput and the average throughput, and the throughput and rate performance of the UT are degraded, and an effective solution has not been proposed yet.
  • the present invention has been made in view of the problem that the impact of inter-cell interference on UT throughput and average throughput in carrier aggregation does not cause a decrease in throughput and rate performance of the UT, and the main purpose of the present invention is to An implementation of carrier aggregation is provided to solve the above problem.
  • a method of implementing carrier aggregation is provided.
  • the implementation method of the carrier aggregation according to the present invention includes: the base station determines the predetermined information, where the predetermined information includes: a reserved resource for carrier aggregation, a capability of the user terminal; and the base station selects the reserved resource according to the capability of the user terminal.
  • the base station aggregates the first carrier resource and the second carrier resource.
  • the base station aggregates the first carrier resource and the second carrier resource, where the base station receives the measurement result from the user terminal, where the measurement result is that the user terminal measures the first carrier resource and the second carrier resource selected by the base station.
  • the base station determines, according to the measurement result, whether the interference condition of the user terminal meets the requirement of inter-cell interference coordination in the system; if the determination result is yes, the base station aggregates the first carrier resource and the second carrier resource.
  • the determining, by the base station, whether the interference condition meets the requirement according to the measurement result further includes: if the determination result is no, the base station uses the second carrier resource and the reserved resource as the new reserved resource, and reselects the new reserved resource.
  • One carrier resource Preferably, the predetermined information determined by the base station further includes a size of a carrier participating in carrier aggregation, and the base station determines the size according to the type of bandwidth supported by all user terminals.
  • the base station determines the reserved resource according to at least one of the following: a load status in the current system, a capability of the user terminal and/or a change of the capability, a bandwidth type supported by all user terminals, and an inter-cell relationship.
  • the neighboring cells all the reserved resources used for the carrier aggregation determined by the base station are orthogonal resources.
  • the capability of the user equipment determined by the base station includes: a bandwidth capability of the user terminal, a number of carriers that affect aggregation, and a size of a carrier that affects aggregation.
  • the method further includes: if the interference situation of the new carrier formed by the user terminal after the aggregation does not meet the requirement, the base station reselects the first carrier resource.
  • the first carrier resource is used for controlling signaling and physical processes of the user terminal.
  • a base station includes: a determining module, configured to determine predetermined information, where the predetermined information includes: a reserved resource for carrier aggregation, a capability of the user terminal; and a first selecting module, configured to pre-predict according to the capability of the user terminal Selecting a first carrier resource in the reserved resource; a second selecting module, configured to select a second carrier resource for carrying data for the user terminal in the resource other than the reserved resource; and an aggregation module, configured to select the first selection module
  • the first carrier resource is aggregated with the second carrier resource selected by the second selection module.
  • the aggregation module includes: a receiving submodule, configured to receive a measurement result reported by the user terminal, where the measurement result is a result that the user terminal measures the interference of the first carrier resource and the second carrier resource selected by the base station; And determining, according to the measurement result received by the receiving submodule, whether the interference condition of the user terminal meets the requirement of inter-cell interference coordination in the system; the aggregation submodule, configured to: when the judgment result of the determining submodule is yes, the first carrier The resource is aggregated with the second carrier resource.
  • the invention adopts carrier aggregation based on resource reservation, and performs reservation processing on important control channels carried in carrier aggregation and carrier parts that play an important role in important physical processes such as random access, and solves related technologies.
  • the problem of the throughput and rate performance of the UT is not considered due to the impact of inter-cell interference on the UT throughput and the average throughput in carrier aggregation, and the carrier used by the UT can be extended under the premise of reducing inter-cell interference.
  • the carrier used by the UT can be extended under the premise of reducing inter-cell interference.
  • FIG. 1 is a flowchart of a method for implementing carrier aggregation according to an embodiment of the present invention
  • FIG. 2 is a detailed flowchart of a method for implementing carrier aggregation according to an embodiment of the present invention
  • FIG. 3 is a flowchart of a base station according to an embodiment of the present invention
  • the present invention provides a method for considering the problem that the throughput and rate performance of the UT are degraded due to the impact of inter-cell interference on the UT throughput and the average throughput in the carrier aggregation.
  • the implementation of carrier aggregation uses carrier aggregation based on resource reservation, and performs reservation processing on important control channels carried in carrier aggregation and carrier parts that play an important role in important physical processes such as random access.
  • a method for implementing carrier aggregation is provided.
  • the method includes the following steps S102 to S106: Step S102, a base station (base station, called a BS) determines a reservation.
  • the information may include: a reserved resource for carrier aggregation, and a capability of the user terminal.
  • the predetermined information may further include: a size of a carrier participating in carrier aggregation.
  • Step S104 The BS selects a first carrier resource in the reserved resource according to the capability of the user terminal, and selects a second carrier resource for the user terminal in the resource other than the reserved resource; The first carrier resource is used for controlling signaling and physical processes of the user terminal.
  • Step S106 The BS aggregates the first carrier resource and the second carrier resource, and the processing includes the following operations:
  • the BS receives the measurement result from the user terminal, wherein the measurement result is a result of the first carrier resource and the second carrier resource selected by the user terminal BS.
  • the BS determines, according to the measurement result, whether the interference condition of the user terminal meets the requirement of inter-cell interference coordination in the system. If the judgment result is yes, the BS allocates the first carrier resource and the second carrier resource. The source performs aggregation; if the judgment result is no, the BS uses the second carrier resource and the reserved resource as the new reserved resource, and reselects the first carrier resource in the new reserved resource.
  • the number of carriers used by the UT is extended to meet the various requirements of the new wireless communication network, and the communication quality in the wireless communication network is ensured. It should be noted that if the interference situation of the new carrier formed by the user terminal after the aggregation does not meet the requirement, the BS reselects the first carrier resource.
  • the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be noted that the steps shown in the flowchart of the accompanying drawings may be performed in a computer system such as a set of computer executable instructions, and, although the logical order is shown in the flowchart, in some cases, The steps shown or described may be performed in an order different than that herein.
  • Step S201: BS 4 is supported by all user terminals.
  • the bandwidth type determines the size of the carrier component that can participate in carrier aggregation (ie, step S102 described above).
  • the new system since the new system must have a rigid requirement for backward compatibility with the original system, the new system may have the UT of the original system, and the new system The bandwidth requirements of the UT that can be carried in the middle and the UT that can be carried in the original system are different.
  • Step S202 The BS determines a reserved resource for carrier aggregation (ie, step S102 described above).
  • the BS may determine the reserved resources according to, but not limited to, at least one of the following: a load status in the current system, a capability of the user terminal, and/or a change in the capability, a bandwidth type supported by all user terminals, and a cell. The situation is particularly dry.
  • the BS determines the reserved resources used in the carrier aggregation, considering the load status in the current system, the capability of the UT, and all supported bandwidth types, etc., reserve carrier resources suitable for the system status, this implementation In the example, it is only explained as an example. When the resource is reserved, it may be considered. Other factors should be included in the scope of protection of the present application.
  • the reserved resources in the carrier aggregation can be based on the status of the system, for example, the load status, the change of the UT capacity, and the situation of the inter-cells, reallocating the reserved resources and increasing or decreasing the reserved portion. Resources, redistributing reserved resources, is conducive to improving resource utilization.
  • the reserved resources in the carrier aggregation take into account the inter-cell interference.
  • Step S203 The BS determines the capability of the UT, including the bandwidth capability of the user terminal, the number of carriers affecting the aggregation, and the size of the carrier that affects the aggregation (ie, step S102 described above).
  • Step S204 The BS selects a component carrier (ie, the first carrier resource described above) in the reserved resource to complete aggregation to meet the capability of the UT.
  • the BS performs aggregation processing on the selected carrier resources to form a new larger carrier to provide services for the UT (ie, step S104 described above).
  • Step S205 The BS selects another carrier resource (that is, the foregoing second carrier resource) for the UT to carry all the data parts except the main control signaling and the carrier resources related to the main physical process (ie, step S104 described above). .
  • the resources reserved for carrier aggregation in the system are limited. If the reservation is too large, the utilization of the carrier resources will be seriously affected. In order to make the reserved resources play a greater role, the UT service quality will not be affected. Under the premise, all the data parts except the main control signaling and the carrier resources related to the main physical process are allocated to other carrier resources, so that the main control signaling and the resources used in the main physical process are still located.
  • Step S206 The UT measures the interference of the re-allocated carrier resources of the BS, and reports the interference to the BS.
  • Step S207 After receiving the interference of the re-allocated carrier resource reported by the UT, the BS determines whether the interference condition of the UT using the carrier resource meets the requirement of inter-cell interference coordination in the system, that is, the strategy for determining whether the cell interference satisfies the inter-cell interference in the system. If not, the process returns to step S204, and if so, proceeds to step S208. Steps S206 and S207 can not satisfy the inter-cell interference in the current system if the UT performs data transmission/reception on the newly allocated carrier resource in consideration of inter-cell interference.
  • the BS will temporarily put the carrier resources occupied by the data part of the UT temporarily in the reserved resource part, and then the BS re-finds the new carrier resource that satisfies the inter-cell interference according to the inter-cell interference strategy, so that the guarantee is guaranteed.
  • the carrier resources reserved in the carrier aggregation are fully utilized.
  • the BS aggregates the carrier resources carrying the UT control signaling and the main physical process in the reserved resource with the carrier resources of the re-allocated bearer data to form a new aggregated carrier.
  • the BS aggregates the carrier resources finally determined by the UT to form a new carrier resource that satisfies the UT capability (ie, step S106 described above).
  • the UT is in a change condition, for example, the UT moves, the UT capability changes, etc., if the UT uses the new carrier formed after the aggregation If the policy does not satisfy the inter-cell interference in the current system, the resource reservation-based method provided by the embodiment of the present invention may be used to re-select the new resource.
  • FIG. 3 is a structural block diagram of a BS according to an embodiment of the present invention; as shown in FIG. 3, the BS includes: a determining module 32, a first selecting module 34, a second selecting module 36, and an aggregating module 38, The structure is described.
  • the determining module 32 is configured to determine predetermined information, where the predetermined information includes: a reserved resource for carrier aggregation, a capability of the UT; the determining module 32 may further determine a size of a carrier participating in carrier aggregation; the first selecting module 34 is connected to The determining module 32 is configured to select the first carrier resource in the reserved resource according to the capability of the UT.
  • the second selecting module 36 is connected to the determining module 32, configured to select, for the UT, the bearer in the resource other than the reserved resource. a second carrier resource of data; an aggregation module 38, coupled to the first selection module 34 and the second selection module 36, for using the first carrier resource selected by the first selection module 34 and the second carrier selected by the second selection module 36 Resources are aggregated.
  • the aggregation module 38 includes: a receiving submodule 82, a judging submodule 84, and an aggregating submodule 86.
  • the foregoing structure is described below.
  • the receiving sub-module 82 is configured to receive the measurement result reported by the UT, where the measurement result is a result of the interference of the first carrier resource and the second carrier resource selected by the UT measurement BS; the determining sub-module 84 is connected to the receiving sub-module 82.
  • the aggregation submodule 86 is connected to the determining submodule 84, and the judgment result of the determining submodule 84 is In the case of YES, the first carrier resource and the second carrier resource are aggregated.
  • the first carrier resource and the second carrier resource are aggregated, and the number of carriers used by the UT can be expanded to reduce the inter-cell interference to adapt to each of the new wireless communication networks. A need to ensure the quality of communication in a wireless communication network.
  • the above-mentioned embodiments of the present invention perform reservation processing on important control channels carried in carrier aggregation and carrier parts that play an important role in important physical processes such as random access, and at the same time, consider a cell.
  • Inter-interference coordination ensures that the carrier parts reserved in different neighboring BSs are orthogonalized.
  • the reserved part carriers can be located at different carrier frequencies, and can be aggregated according to carrier aggregation. It is necessary to adjust the location and size of the reserved resources.
  • the carrier aggregation process of the BS resource reservation process is used to reserve the carrier part that plays a major role in carrier aggregation, which can reduce the inter-cell interference.
  • the number of carriers used by the UT is extended to meet various requirements of the new wireless communication network, and the communication quality in the wireless communication network is ensured.
  • the resources used in the main control channel and related physical processes are all reserved, the number of blind detections of the UT in various physical processes, the time required for signaling interaction, and the effective saving of the UT are further reduced. energy consumption.
  • the invention is not limited to any specific combination of hardware and software.
  • the above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the scope of the present invention are intended to be included within the scope of the present invention.

Landscapes

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

Description

载波聚合的实现方法以及基站
技术领域 本发明涉及通信领域， 具体而言， 涉及一种载波聚合的实现方法以及基 站。 背景技术 在下一代的宽带无线通信网络中，解决无线通信网络中如何在当前的无 线通信系统中的带宽下支持更大的带宽成为提高小区间用户终端 （User Terminal , 筒称为 UT )吞吐量及 UT平均吞吐量的一个关键因素。 目前 , 在第三代合作伙伴计划的长期技术演进 ( Long Term Evolution, 筒称为 LTE ) 系统中提出采用载波聚合的方式来有效地在当前的无线通信系 统中支持更大的带宽， 以满足新一代无线标准中对吞吐量、 峰值速率等指标 的需求。 载波聚合是未来无线通信系统中支持更大带宽的关键技术， 通过对 不同的载波进行聚合， 形成更大带宽的载波， 在聚合后的带宽上支持具有更 强能力的 UT , 例如， 在高级长期演进系统（ Long-Term Evolution Advanced , 筒称为 LTE-Advanced ) 中支持超过 100 MHz的带宽。 但是， 目前 LTE-Advanced 中讨论的载波聚合没有考虑到对小区间 UT 吞吐量及 UT平均吞吐量起重要作用的小区间干扰的影响， 如果聚合的载波 部分遭受到严重的小区间干扰， 则即使得到了更大的带宽， 也会因为严重的 小区间干扰使使用该部分聚合载波的 UT的吞吐量和速率性能下降， 从而抵 消了载波聚合带来的好处。 现有相关技术中没有考虑到载波聚合中小区间干扰对 UT吞吐量及平均 吞吐量的影响而导致 UT的吞吐量和速率性能下降的问题， 且目前尚未提出 有效的解决方案。 发明内容 针对相关技术中没有考虑到载波聚合中小区间干扰对 UT吞吐量及平均 吞吐量的影响而导致 UT的吞吐量和速率性能下降的问题而提出本发明， 为 此，本发明的主要目的在于提供一种载波聚合的实现方案， 以解决上述问题。 为了实现上述目的 , 根据本发明的一个方面， 提供了一种载波聚合的实 现方法。 根据本发明的载波聚合的实现方法包括： 基站确定预定信息， 其中， 预 定信息包括： 用于载波聚合的预留资源、 用户终端的能力； 基站才艮据用户终 端的能力在预留资源中选择第一载波资源， 并在预留资源之外的资源中为用 户终端选择用于承载数据的第二载波资源； 基站将第一载波资源与第二载波 资源进行聚合。 其中 , 基站将第一载波资源与第二载波资源进行聚合包括： 基站接收来 自用户终端上 4艮的测量结果， 其中， 测量结果为用户终端测量基站选择的第 一载波资源和第二载波资源的干扰的结果； 基站根据测量结果判断用户终端 的干扰状况是否符合系统中小区间干扰协调的需求； 如果判断结果为是， 则 基站将第一载波资源与第二载波资源进行聚合。 优选地，基站根据测量结果判断干扰状况是否符合需求进一步包括： 如 果判断结果为否， 基站将第二载波资源与预留资源作为新的预留资源， 并在 新的预留资源中重新选择第一载波资源。 优选地，基站确定的预定信息还包括参与载波聚合的载波的尺寸， 且基 站才艮据所有用户终端支持的带宽类型确定尺寸。 优选地 ,基站才艮据至少以下之一来确定预留资源： 当前系统中的负载状 况、用户终端的能力和 /或该能力的变化情况、所有用户终端支持的带宽类型、 以及小区间干 4尤的^ 1犬况。 优选地， 在相邻的小区中， 基站确定的所有用于载波聚合的预留资源为 正交资源。 优选地， 基站确定的用户终端的能力包括： 用户终端的带宽能力、 影响 聚合的载波的数目、 以及影响聚合的载波的尺寸。 优选地， 在基站将载波资源与其他载波资源进行聚合之后， 上述方法还 包括： 如果用户终端使用聚合后形成的新载波的干扰情况不符合需求， 则基 站重新选择第一载波资源。 优选地， 第一载波资源用于^载用户终端的控制信令和物理过程。 为了实现上述目的， 根据本发明的另一方面， 提供了一种基站。 根据本发明的基站包括： 确定模块， 用于确定预定信息， 其中， 预定信 息包括： 用于载波聚合的预留资源、 用户终端的能力； 第一选择模块， 用于 根据用户终端的能力在预留资源中选择第一载波资源； 第二选择模块 , 用于 在预留资源之外的资源中为用户终端选择用于承载数据的第二载波资源； 聚 合模块， 用于将第一选择模块选择的第一载波资源与第二选择模块选择的第 二载波资源进行聚合。 其中， 上述聚合模块包括： 接收子模块， 用于接收来自用户终端上报的 测量结果， 其中， 测量结果为用户终端测量基站选择的第一载波资源和第二 载波资源的干扰的结果； 判断子模块， 用于根据接收子模块接收的测量结果 判断用户终端的干扰状况是否符合系统中小区间干扰协调的需求； 聚合子模 块， 用于在判断子模块的判断结果为是的情况下， 将第一载波资源与第二载 波资源进行聚合。 通过本发明， 采用基于资源预留进行载波聚合， 对载波聚合中承载的重 要的控制信道， 以及对随机接入等重要的物理过程起重要作用的载波部分进 行预留处理 , 解决了相关技术中没有考虑到载波聚合中小区间干扰对 UT吞 吐量及平均吞吐量的影响而导致 UT的吞吐量和速率性能下降的问题， 进而 能够在减小小区间干 4尤的前提下 , 扩展 UT使用的载波数， 以适应新无线通 信网络的各种需求， 保证无线通信网络中的通信质量。 附图说明 此处所说明的附图用来提供对本发明的进一步理解 ,构成本申请的一部 分， 本发明的示意性实施例及其说明用于解释本发明， 并不构成对本发明的 不当限定。 在附图中： 图 1是本发明实施例的载波聚合的实现方法的流程图； 图 2是本发明实施例的载波聚合的实现方法的详细流程图； 图 3是本发明实施例的基站的结构框图； 图 4是本发明优选实施例的基站的结构框图。 具体实施方式 功能相克述 考虑到相关技术中没有考虑到载波聚合中小区间干扰对 UT吞吐量及平 均吞吐量的影响而导致 UT的吞吐量和速率性能下降的问题， 本发明实施例 提供了一种载波聚合的实现方案， 采用基于资源预留进行载波聚合， 对载波 聚合中承载的重要的控制信道， 以及对随机接入等重要的物理过程起重要作 用的载波部分进行预留处理， 能够在减小小区间干扰的前提下， 扩展 UT使 用的载波数， 以适应新无线通信网络的各种需求， 保证无线通信网络中的通 信质量。 需要说明的是， 在不冲突的情况下， 本申请中的实施例及实施例中的特 征可以相互组合。 下面将参考附图并结合实施例来详细说明本发明。 方法实施例 才艮据本发明的实施例 , 提供了一种载波聚合的实现方法。 图 1是才艮据本发明实施例的载波聚合的实现方法的流程图，如图 1所示， 包括如下的步骤 S102至步骤 S106: 步骤 S102, 基站（ Base Station, 筒称为 BS )确定预定信息， 其中， 该 预定信息可以包括： 用于载波聚合的预留资源、 用户终端的能力； 优选地， 该预定信息还可以进一步包括： 参与载波聚合的载波的尺寸。 步骤 S 104 , BS才艮据用户终端的能力在预留资源中选择第一载波资源 , 并在预留资源之外的资源中为用户终端选择用于^载数据的第二载波资源； 其中， 第一载波资源用于^ ^载用户终端的控制信令和物理过程。 步骤 S106, BS将第一载波资源与第二载波资源进行聚合， 其处理具体 包括以下操作：
( 1 ) BS接收来自用户终端上 4艮的测量结果， 其中， 测量结果为用户终 端测量 BS选择的第一载波资源和第二载波资源的干 ·ί尤的结果。
( 2 )BS根据测量结果判断用户终端的干扰状况是否符合系统中小区间 干扰协调的需求， 如果判断结果为是， 则 BS将第一载波资源与第二载波资 源进行聚合； 如果判断结果为否， BS将第二载波资源与预留资源作为新的预 留资源， 并在新的预留资源中重新选择第一载波资源。 通过该实施例 ,可以解决相关技术中没有考虑到载波聚合中小区间干扰 对 UT吞吐量及平均吞吐量的影响而导致 UT的吞吐量和速率性能下降的问 题， 进而能够在减小小区间干扰的前提下， 扩展 UT使用的载波数， 以适应 新无线通信网络的各种需求， 保证无线通信网络中的通信质量。 需要说明的是，如果用户终端使用聚合后形成的新载波的干扰情况不符 合需求， 则 BS重新选择第一载波资源。 下面结合附图及实施例，对本发明进行进一步详细说明。需要说明的是， 在附图的流程图示出的步骤可以在诸如一组计算机可执行指令的计算机系统 中执行， 并且， 虽然在流程图中示出了逻辑顺序， 但是在某些情况下， 可以 以不同于此处的顺序执行所示出或描述的步骤。 图 2是才艮据本发明实施例的载波聚合的实现方法的详细流程图， 如图 2 所示， 该方法包括如下的步骤 S201至步骤 S208: 步骤 S201 : BS 4艮据所有用户终端支持的带宽类型确定能够参与载波聚 合的载波组成部分的尺寸 （即， 上述的步骤 S102 )。 其中， 在 BS确定能够参与载波聚合的载波组成部分的尺寸中， 由于新 系统必须要对原系统有后向兼容的硬性需求 , 因此， 在新系统中可能会具有 原系统的 UT, 而新系统中能够^载的 UT和原系统中能够^载的 UT的带宽 需求有 4艮大的差异， 例如， 在 LTE系统中可能有 10 MHz、 20MHz等类型的 带宽， 而在 LTE-Advanced中会存在 100MHz类型的带宽， 因此， BS必须对 所有支持的带宽类型进行整理，使载波聚合能够支持所有的这些类型的带宽。 步骤 S202: BS确定用于载波聚合的预留资源（即， 上述的步骤 S102 )。 其中， BS可以才艮据但不限于至少以下之一来确定预留资源： 当前系统中的负 载状况、 用户终端的能力和 /或该能力的变化情况、 所有用户终端支持的带宽 类型、 以及小区间干 4尤的状况。 具体地， 在 BS确定用于载波聚合中的预留资源时， 要考虑到当前系统 中的负载状况、 UT 的能力及所有支持的带宽类型等， 预留适合于系统状况 的载波资源， 本实施例中只作为例子进行说明， 资源预留时可能还会考虑到 其他的因素 , 都应包括在本发明申请保护的范围之内。 载波聚合中预留资源可以才艮据系统的状况， 例如， 负载状况、 UT能力 的变化及小区间干 4尤的^ 1犬况， 对预留资源进行重新分配并能够增加或减少预 留部分的资源， 对预留资源进行重新分配， 有利于提高资源的利用率。 载波聚合中预留的资源考虑到小区间干扰， 在相邻的小区中， BS确定 的所有用于载波聚合的预留资源为正交资源。 步骤 S203: BS确定 UT的能力， 包括用户终端的带宽能力、 影响聚合 的载波的数目、 以及影响聚合的载波的尺寸 （即， 上述的步骤 S102 )。 步骤 S204: BS在预留资源中选择组成载波（即， 上述的第一载波资源） 完成聚合， 以满足 UT的能力。 其中， BS将选取的载波资源经过聚合处理， 形成一个新的更大的载波为 UT提供服务（即， 上述的步骤 S104 )。 步骤 S205: BS为 UT选择其他的载波资源（即， 上述的第二载波资源） 来承载除了主要控制信令及主要物理过程相关的载波资源之外的所有数据部 分（即， 上述的步骤 S104 )。 需要说明的是， 由于系统中为载波聚合预留的资源是有限的， 如果预留 过多会严重影响载波资源的利用率， 为了使预留资源发挥更大的作用， 在不 影响 UT服务质量的前提下， 将除了主要控制信令及主要物理过程相关的载 波资源之外的所有数据部分分配到其他的载波资源上， 这样， 由于主要的控 制信令及主要物理过程中使用的资源仍然位于预留部分的载波资源上，同时， 由于相邻小区间载波聚合预留的载波资源是正交的， 在有效降低小区间干扰 的情况下 , 进一步降低 UT在各种物理过程中的盲检测次数、 信令交互所需 要的时间及有效地节约 UT的能量消耗。 步骤 S206: UT测量 BS重新分配的载波资源的干扰， 并上报给该 BS。 步骤 S207: BS接收到 UT上报的重新分配的载波资源的干扰后 , 判断 该 UT使用载波资源的干扰状况是否符合系统中小区间干扰协调的需求，即， 判断小区干扰是否满足系统中小区间干扰的策略， 如果不符合， 则返回到步 骤 S204, 如果符合， 进行到步骤 S208。 步骤 S206和步骤 S207在考虑到小区间干扰的情况下 ,如果 UT在新分 配的载波资源上进行数据发送 /接收时， 不能满足当前系统中的小区间干扰的 策略， 则 BS将把 UT的数据部分所占用的载波资源仍然暂时放在预留资源 部分， 然后， BS为 UT按照小区间干扰的策略重新寻找满足小区间干扰的新 载波资源， 这样， 在保证 UT具有较小的小区间干扰的情况下， 充分利用载 波聚合中预留的载波资源。 步骤 S208: BS将预留资源中承载 UT控制信令及主要物理过程的载波 资源与重新分配的承载数据的载波资源进行聚合， 形成新的聚合后的载波。 即， BS将最终为 UT确定的载波资源进行聚合， 形成满足 UT能力的新载波 资源 （即， 上述的步骤 S 106 )。 需要说明的是， 在本发明实施例基于资源预留的载波聚合中 , 随着 UT 所处的条件的变化， 例如， UT的移动、 UT能力的变更等， 如果 UT使用聚 合后形成的新载波重新产生了不满足当前系统中小区间干扰的策略， 则仍然 可以重新使用本发明实施例提供的基于资源预留的方法重新选择新的资源。 上述的基于资源预留的载波聚合的方法是考虑了小区间干扰的一种普遍适用 的、 筒便、 易用的方法。 装置实施例 根据本发明的实施例 , 提供了一种 BS , 该 BS可以用于实现上述的载 波聚合的实现方法。 图 3是才艮据本发明实施例的 BS的结构框图； 如图 3所示， 该 BS包括： 确定模块 32、 第一选择模块 34、 第二选择模块 36、 聚合模块 38, 下面对上 述结构进行描述。 确定模块 32, 用于确定预定信息， 其中， 预定信息包括： 用于载波聚 合的预留资源、 UT的能力； 确定模块 32还可以确定参与载波聚合的载波的 尺寸； 第一选择模块 34连接至确定模块 32 , 用于根据 UT的能力在预留资 源中选择第一载波资源； 第二选择模块 36, 连接至确定模块 32 , 用于在预 留资源之外的资源中为 UT选择用于承载数据的第二载波资源；聚合模块 38 , 连接至第一选择模块 34和第二选择模块 36,用于将第一选择模块 34选择的 第一载波资源与第二选择模块 36选择的第二载波资源进行聚合。 图 4是根据本发明优选实施例的 BS的结构框图， 如图 4所示， 聚合模 块 38包括： 接收子模块 82、 判断子模块 84、 聚合子模块 86, 下面对上述结 构进行描述。 接收子模块 82, 用于接收来自 UT上报的测量结果， 其中， 测量结果为 UT测量 BS选择的第一载波资源和第二载波资源的干扰的结果；判断子模块 84, 连接至接收子模块 82, 用于根据接收子模块接收 82的测量结果判断 UT 的干扰状况是否符合系统中小区间干扰协调的需求； 聚合子模块 86, 连接至 判断子模块 84 , 用于在判断子模块 84的判断结果为是的情况下， 将第一载 波资源与第二载波资源进行聚合。 通过该实施例， BS通过判断后， 对第一载波资源和第二载波资源进行 聚合处理， 能够在减小小区间干扰的前提下， 扩展 UT使用的载波数， 以适 应新无线通信网络的各种需求， 保证无线通信网络中的通信质量。 综上所述， 通过本发明的上述实施例， 对载波聚合中承载的重要的控制 信道， 以及对随机接入等重要的物理过程起重要作用的载波部分进行预留处 理， 同时， 考虑到小区间干扰协调， 确保相邻的不同 BS 中预留的载波部分 正交化， 为了使资源预留使用更加灵活， 预留部分的载波可以位于不同的载 频， 并且，可以才艮据载波聚合的需要对预留资源的位置及尺寸 ^故相应的调整， 通过 BS 资源预留的载波聚合处理， 对载波聚合中起主要作用的载波部分进 行预留处理， 能够在减小小区间干扰的前提下， 扩展 UT使用的载波数， 以 适应新无线通信网络的各种需求， 保证无线通信网络中的通信质量。 同时， 由于主要的控制信道及相关的物理过程中使用的资源都在预留部分， 会进一 步降低 UT在各种物理过程中的盲检测次数、 信令交互所需要的时间及有效 地节约 UT的能量消耗。 显然， 本领域的技术人员应该明白， 上述的本发明的各模块或各步骤可 以用通用的计算装置来实现， 它们可以集中在单个的计算装置上， 或者分布 在多个计算装置所组成的网络上， 可选地， 它们可以用计算装置可执行的程 序代码来实现， 从而， 可以将它们存储在存储装置中由计算装置来执行， 或 者将它们分别制作成各个集成电路模块， 或者将它们中的多个模块或步骤制 作成单个集成电路模块来实现。 这样， 本发明不限制于任何特定的硬件和软 件结合。 以上所述仅为本发明的优选实施例而已， 并不用于限制本发明， 对于本 领域的技术人员来说， 本发明可以有各种更改和变化。 凡在本发明的^^申和 原则之内， 所作的任何修改、 等同替换、 改进等， 均应包含在本发明的保护 范围之内。

Claims

权 利 要 求 书
1. 一种载波聚合的实现方法， 其特征在于， 包括：
基站确定预定信息， 其中， 所述预定信息包括： 用于载波聚合的预 留资源、 用户终端的能力；
所述基站 ^据所述用户终端的能力在所述预留资源中选择第一载 波资源 , 并在所述预留资源之外的资源中为所述用户终端选择用于 载 数据的第二载波资源；
所述基站将所述第一载波资源与所述第二载波资源进行聚合。
2. 才艮据权利要求 1所述的方法， 其特征在于， 所述基站将所述第一载波资 源与所述第二载波资源进行聚合包括：
所述基站接收来自所述用户终端上 4艮的测量结果， 其中， 所述测量 结果为所述用户终端测量所述基站选择的所述第一载波资源和所述第二 载波资源的干扰的结果；
所述基站才艮据所述测量结果判断所述用户终端的干扰状况是否符 合系统中小区间干扰协调的需求；
如果判断结果为是，则所述基站将所述第一载波资源与所述第二载 波资源进行聚合。
3. 根据权利要求 2所述的方法， 其特征在于， 所述基站根据所述测量结果 判断所述干扰状况是否符合所述需求进一步包括：
如果判断结果为否，所述基站将所述第二载波资源与所述预留资源 作为新的预留资源， 并在所述新的预留资源中重新选择第一载波资源。
4. 根据权利要求 1所述的方法， 其特征在于， 所述基站确定的所述预定信 息还包括参与载波聚合的载波的尺寸 , 且所述基站才艮据所有所述用户终 端支持的带宽类型确定所述尺寸。
5. 根据权利要求 1所述的方法， 其特征在于， 所述基站根据至少以下之一 来确定所述预留资源：
当前系统中的负载状况、 用户终端的能力和 /或该能力的变化情况、 所有用户终端支持的带宽类型、 以及小区间干扰的状况。
6. 根据权利要求 1所述的方法， 其特征在于， 在相邻的小区中， 所述基站 确定的所有用于载波聚合的所述预留资源为正交资源。
7. 根据权利要求 1所述的方法， 其特征在于， 所述基站确定的所述用户终 端的能力包括：
所述用户终端的带宽能力、 影响聚合的载波的数目、 以及影响聚合 的载波的尺寸。
8. 根据权利要求 1至 7中任一项所述的方法， 其特征在于， 在所述基站将 所述载波资源与所述其他载波资源进行聚合之后 , 所述方法还包括： 如果所述用户终端使用聚合后形成的新载波的干扰情况不符合所 述需求， 则所述基站重新选择第一载波资源。
9. 根据权利要求 1至 7中任一项所述的方法， 其特征在于， 所述第一载波 资源用于^载所述用户终端的控制信令和物理过程。
10. 一种基站， 其特征在于， 包括：
确定模块， 用于确定预定信息， 其中， 所述预定信息包括： 用于载 波聚合的预留资源、 用户终端的能力；
第一选择模块，用于根据所述用户终端的能力在所述预留资源中选 择第一载波资源； 第二选择模块，用于在所述预留资源之外的资源中为所述用户终端 选择用于承载数据的第二载波资源；
聚合模块 ,用于将所述第一选择模块选择的所述第一载波资源与所 述第二选择模块选择的所述第二载波资源进行聚合。
1. 根据权利要求 10所述的基站， 其特征在于， 所述聚合模块包括： 接收子模块， 用于接收来自所述用户终端上报的测量结果， 其中， 所述测量结果为所述用户终端测量所述基站选择的所述第一载波资源和 所述第二载波资源的干扰的结果； 判断子模块，用于才艮据所述接收子模块接收的所述测量结果判断所 述用户终端的干扰状况是否符合系统中小区间干扰协调的需求；
聚合子模块， 用于在所述判断子模块的判断结果为是的情况下， 将 所述第一载波资源与所述第二载波资源进行聚合。
PCT/CN2009/073472 2009-03-27 2009-08-24 载波聚合的实现方法以及基站 WO2010108348A1 (zh)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2012501114A JP2012521691A (ja) 2009-03-27 2009-08-24 キャリアアグリゲーションの実施方法及び基地局
US13/257,602 US8688135B2 (en) 2009-03-27 2009-08-24 Method and base station for implementing carrier aggregation
EP09842082.1A EP2413650B1 (en) 2009-03-27 2009-08-24 Method and base station for implementing carrier aggregation

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200910132616.3 2009-03-27
CN200910132616.3A CN101848501B (zh) 2009-03-27 2009-03-27 载波聚合的实现方法以及基站

Publications (1)

Publication Number Publication Date
WO2010108348A1 true WO2010108348A1 (zh) 2010-09-30

Family

ID=42772923

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2009/073472 WO2010108348A1 (zh) 2009-03-27 2009-08-24 载波聚合的实现方法以及基站

Country Status (5)

Country Link
US (1) US8688135B2 (zh)
EP (1) EP2413650B1 (zh)
JP (1) JP2012521691A (zh)
CN (1) CN101848501B (zh)
WO (1) WO2010108348A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104426643A (zh) * 2013-09-05 2015-03-18 中兴通讯股份有限公司 一种业务抢占方法、装置和基站

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102457352B (zh) * 2010-11-04 2014-05-07 华为技术有限公司 一种聚合载波中rf能力上报的方法、设备和系统
CN102469611B (zh) * 2010-11-17 2016-03-30 中兴通讯股份有限公司 一种上报终端载波聚合能力的方法、系统和终端
CN102594420B (zh) * 2011-01-10 2015-08-05 上海贝尔股份有限公司 多点协同传输系统中的干扰抑制方法及装置
CN102917461B (zh) * 2011-08-04 2016-08-24 华为技术有限公司 选择载波的方法、装置及基站
CN103580836B (zh) * 2012-08-03 2019-01-04 中兴通讯股份有限公司 Ue类型上报、资源分配方法及装置、ue、基站
US9432158B2 (en) * 2012-10-26 2016-08-30 Sharp Laboratories Of America, Inc. Systems and methods for handling a type-2 carrier
CN103906070B (zh) * 2012-12-25 2017-05-24 普天信息技术研究院有限公司 一种小区间干扰抑制方法
KR101915114B1 (ko) * 2014-10-13 2018-11-05 에스케이텔레콤 주식회사 기지국장치 및 기지국장치의 동작 방법
KR101981511B1 (ko) * 2014-10-24 2019-05-23 에스케이텔레콤 주식회사 단말장치 및 단말장치의 동작 방법
US10257847B2 (en) * 2016-01-29 2019-04-09 Qualcomm Incorporated Small cell and communication network reconfiguration based on wireless device capabilities
WO2017210909A1 (zh) 2016-06-08 2017-12-14 华为技术有限公司 一种干扰协调方法及装置
WO2018038527A1 (ko) * 2016-08-23 2018-03-01 엘지전자 주식회사 복수의 요소 반송파들을 집성하도록 설정된 단말이 간섭 완화를 수행하는 방법
CN108882373B (zh) * 2017-05-16 2020-11-03 维沃移动通信有限公司 一种资源配置方法、相关设备和系统
EP3716665B1 (en) 2017-11-23 2022-09-28 Beijing Xiaomi Mobile Software Co., Ltd. Transmission configuration method and apparatus

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070070878A1 (en) * 2005-09-26 2007-03-29 The Directv Group, Inc. Reconfigurable notched spectrum for wireless data transmission
WO2007092517A2 (en) * 2006-02-08 2007-08-16 Lucent Technologies Inc. Multiple carrier resource management
CN101098294A (zh) * 2006-06-26 2008-01-02 大唐移动通信设备有限公司 高速下行链路分组接入技术中载波分配的方法和装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040160922A1 (en) * 2003-02-18 2004-08-19 Sanjiv Nanda Method and apparatus for controlling data rate of a reverse link in a communication system
US7565152B2 (en) * 2003-07-31 2009-07-21 Alcatel-Lucent Usa Inc. Method of controlling overload over the reverse link
US8091088B2 (en) * 2005-02-22 2012-01-03 Microsoft Corporation Method and system for hierarchical resource management involving hard and soft resource limits
EP1878270B1 (en) * 2005-05-03 2013-04-10 NetSocket, Inc. Method and arrangements for reservation of resources in a data network
US8973008B2 (en) * 2005-05-10 2015-03-03 Oracle America, Inc. Combining different resource types
EP1927217B1 (en) * 2005-08-23 2009-12-09 TELEFONAKTIEBOLAGET LM ERICSSON (publ) Aggregated resource reservation for data flows
CN101064865A (zh) * 2006-04-29 2007-10-31 上海原动力通信科技有限公司 蜂窝移动通信系统的资源调度方法和装置
US10014931B2 (en) * 2007-01-13 2018-07-03 Samsung Electronics Co., Ltd. Method and system for transmitting and receiving signal using multiple frequency bands in a wireless communication system
KR101089838B1 (ko) * 2008-08-13 2011-12-05 한국전자통신연구원 캐리어 집성을 사용하는 통신 시스템 및 상기 통신 시스템에 속하는 기지국 및 단말
JP5452705B2 (ja) * 2009-03-17 2014-03-26 ノキア シーメンス ネットワークス オサケユキチュア 物理アップリンク共有チャネル（ｐｕｓｃｈ）における定期的フィードバック情報の送信の構成

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070070878A1 (en) * 2005-09-26 2007-03-29 The Directv Group, Inc. Reconfigurable notched spectrum for wireless data transmission
WO2007092517A2 (en) * 2006-02-08 2007-08-16 Lucent Technologies Inc. Multiple carrier resource management
CN101098294A (zh) * 2006-06-26 2008-01-02 大唐移动通信设备有限公司 高速下行链路分组接入技术中载波分配的方法和装置

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"3GPP TSGRAN, Further Advancements for E-UTRA Physical Layer Aspects (Release 9)", 3GPP TR 36.814 V0.4.1, February 2009 (2009-02-01), XP050380817 *
See also references of EP2413650A4 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104426643A (zh) * 2013-09-05 2015-03-18 中兴通讯股份有限公司 一种业务抢占方法、装置和基站
CN104426643B (zh) * 2013-09-05 2019-03-29 中兴通讯股份有限公司 一种业务抢占方法、装置和基站

Also Published As

Publication number Publication date
EP2413650B1 (en) 2014-09-10
US20120009935A1 (en) 2012-01-12
EP2413650A4 (en) 2013-10-30
JP2012521691A (ja) 2012-09-13
EP2413650A1 (en) 2012-02-01
CN101848501B (zh) 2014-01-01
CN101848501A (zh) 2010-09-29
US8688135B2 (en) 2014-04-01

Similar Documents

Publication Publication Date Title
WO2010108348A1 (zh) 载波聚合的实现方法以及基站
JP5304884B2 (ja) 移動体通信システムの無線基地局及び干渉平準化方法
US8934361B2 (en) Downlink inter-cell interference coordination method and eNB
CN107306453B (zh) 一种生成传输块的方法和装置
CN104685939B (zh) 用于噪声受限无线蜂窝网络的自适应多级下行功率控制
WO2014026517A1 (zh) 功率控制方法及基站
US11510156B2 (en) Apparatus and method for dynamic power management in wireless communication system
WO2012174916A1 (zh) 异系统间频谱共享情况下的干扰抑制方法和设备
WO2017059572A1 (zh) 一种干扰指示方法及装置
JP2011071994A (ja) セル間干渉協調方法及び基地局
CN112512068A (zh) 小区节能方法和基站
WO2021073329A1 (zh) 一种抑制小区同频干扰的方法、基站及系统
KR20120055851A (ko) 무선 통신 시스템에서 기지국의 송신 파워 제어 방법 및 장치
WO2010121448A1 (zh) 载波聚合的实现方法和装置
US9326293B2 (en) Selection of a secondary component carrier based on interference information
CN102170701B (zh) 一种载波资源分配的方法及基站
CN102572844B (zh) 小区资源分配方法及装置
US10631318B2 (en) Resource division method and apparatus
Zhang et al. Congestion-aware user-centric cooperative base station selection in ultra-dense networks
US20140016588A1 (en) Apparatus and Corresponding Method for Allocating a Component Carrier to a Cell in a Communication System
JPWO2010084705A1 (ja) 無線通信システムにおける通信装置およびその送信電力制御方法
CN101998645A (zh) 载波选择方法及装置
KR100821176B1 (ko) 주파수 대역간 핸드오버 방법 및 장치
WO2014056518A1 (en) Frequency resource allocation for semi-persistent scheduling
CN109327412B (zh) 一种数据传输方法和基站

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 09842082

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 13257602

Country of ref document: US

WWE Wipo information: entry into national phase

Ref document number: 2009842082

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 2012501114

Country of ref document: JP

NENP Non-entry into the national phase

Ref country code: DE