WO2011000251A1 - 一种上行资源获取方法、调度方法、装置及系统 - Google Patents

一种上行资源获取方法、调度方法、装置及系统 Download PDF

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Publication number
WO2011000251A1
WO2011000251A1 PCT/CN2010/073618 CN2010073618W WO2011000251A1 WO 2011000251 A1 WO2011000251 A1 WO 2011000251A1 CN 2010073618 W CN2010073618 W CN 2010073618W WO 2011000251 A1 WO2011000251 A1 WO 2011000251A1
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Prior art keywords
component carrier
resource
scheduling
scheduling request
drx
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PCT/CN2010/073618
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English (en)
French (fr)
Inventor
高闻
曾清海
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP10793546.2A priority Critical patent/EP2437563B1/en
Priority to EP16183657.2A priority patent/EP3154299B1/en
Publication of WO2011000251A1 publication Critical patent/WO2011000251A1/zh

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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
    • H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
    • 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
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0235—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a power saving command
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • 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
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • 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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/28—Discontinuous transmission [DTX]; Discontinuous reception [DRX]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the invention relates to an uplink resource acquisition method, a scheduling method, a device and a system.
  • the application is submitted to the Chinese Patent Office on June 30, 2009, and the application number is 200910158458. The priority of the Chinese Patent Application, the entire disclosure of which is incorporated herein by reference.
  • the present invention relates to a long term evolution technology, and in particular, to an uplink resource acquisition method, a scheduling method, an apparatus, and a system. Background of the Invention In the Long Term Evolution (LTE) system, the maximum bandwidth is 20M.
  • LTE Long Term Evolution
  • the maximum bandwidth is 20M.
  • the LTE-A (Advanced LTE, Advanced Long Term Evolution) system is an extension and enhancement of the LTE system.
  • the LTE-A system is studying a carrier aggregation (CA) technology, which aggregates multiple carriers in different frequency bands to form a bandwidth of up to 100M, so that it can transmit or receive more than A 20M bandwidth
  • LTE-A UE can simultaneously receive or transmit data on multiple Component Carriers (CCs).
  • CA carrier aggregation
  • each component carrier in the LTE-A system cannot be greater than 20M, and has a separate PDCCH (Physical Downlink Control Channel) and a PUCCH (Physical Uplink Control Channel).
  • PDCCH Physical Downlink Control Channel
  • PUCCH Physical Uplink Control Channel
  • the UE If the UE is configured with the DRX mode on multiple component carriers, the UE that needs to send the uplink data sends the resource scheduling request SR to the evolved base station (Evolved Node B, eNB), according to the processing manner in the LTE system, the UE will be in all configurations.
  • the member carriers of the DRX are all in an Active state to monitor the PDCCH scheduling, which wastes a lot of energy consumption of the UE. Summary of the invention
  • the embodiment of the invention provides an uplink resource acquisition method, a scheduling method, a device and a system.
  • An uplink resource acquisition method provided by the embodiment of the present invention includes: sending a scheduling request to a base station by using a dedicated scheduling request resource; monitoring a physical downlink control channel on the set component carrier, and receiving an uplink scheduling resource;
  • the set component carrier includes any one or more of the following: a component carrier that sends the scheduling request SR, or a primary component carrier, or a component carrier that is not configured with a DRX, or a pre-configured component carrier.
  • An uplink resource scheduling method is further provided by the embodiment of the present invention, including: receiving a scheduling request from a user equipment on a dedicated scheduling request resource; scheduling uplink scheduling resources for the user equipment on the set component carrier;
  • the member carrier is any one or more of the following: a component carrier that receives the scheduling request SR, or a primary component carrier, or a component carrier that is not configured with a DRX, or a pre-configured component carrier.
  • the embodiment of the invention further provides a user equipment, including a sending unit and a receiving unit.
  • the sending unit is configured to send a scheduling request to the base station by using a dedicated scheduling request resource.
  • the receiving unit is configured to monitor the physical downlink control channel on the set component carrier and receive the uplink scheduling resource.
  • the set component carrier includes any one or more of the following: a component carrier that sends the scheduling request SR, or a primary component carrier, or a component carrier that is not configured with a DRX, or a pre-configured component carrier.
  • the embodiment of the present invention further provides a communication system, including the above user equipment.
  • An embodiment of the present invention further provides a base station, including a receiving unit and a scheduling unit.
  • the receiving unit is configured to receive a scheduling request from the user equipment on the dedicated scheduling request resource.
  • the scheduling unit is configured to schedule an uplink scheduling resource for the user equipment on the set component carrier.
  • the configured component carrier includes any one or more of the following: a component carrier that receives the scheduling request SR, or a primary component carrier, or a component carrier that is not configured with a DRX, or a component carrier that is configured in advance.
  • the embodiment of the present invention also provides a communication system including the above base station.
  • the embodiment of the present invention can solve the problem of wasting energy consumption when the UE monitors the PDCCH scheduling by scheduling the uplink resource on the configured component carrier, thereby avoiding waste of energy consumption.
  • Embodiment 1 is a flowchart of a method according to Embodiment 1 of the present invention.
  • Embodiment 3 is a flowchart of a method according to Embodiment 3 of the present invention.
  • FIG. 4 is a block diagram of a user equipment according to Embodiment 4 of the present invention
  • 5 is a block diagram of a base station according to Embodiment 5 of the present invention
  • FIG. 6 is a schematic diagram of a communication system according to another embodiment of the present invention.
  • the embodiments of the present invention will be described clearly and completely in conjunction with the drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of them. An embodiment. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
  • the embodiment of the present invention provides an uplink resource acquisition method. As shown in FIG. 1 , the method includes: Step 110: A UE sends a scheduling request SR to an eNB through a dedicated scheduling request resource.
  • a dedicated SR resource can be configured for each component carrier to the UE.
  • the UE of the LTE-A can only be in one.
  • a dedicated SR resource is configured on the component carrier.
  • the UE When the UE needs to send uplink data, it triggers a regular BSR (Buffer Status Report). If no uplink scheduling resource is available at this time, the UE may send a scheduling request SR to the eNB on the configured dedicated SR (Scheduling Request) resource.
  • Step 120 The UE monitors the physical downlink control channel on the set component carrier, and receives an uplink scheduling resource, such as IX G t.
  • the set component carrier includes, but is not limited to, one or more of the following component carriers: a component carrier that sends the scheduling request SR, an anchor component carrier, a component carrier that is not configured with a DRX, and a UE Or a component carrier or a plurality of component carriers pre-configured by the eNB through signaling, where the signaling includes RRC signaling, MAC signaling, and the like.
  • the embodiment of the present invention can solve the problem of wasteful energy consumption caused by receiving uplink scheduling resources on multiple component carriers in the prior art by receiving the uplink scheduling resource on the configured component carrier.
  • Step 130 After receiving the uplink scheduling resource on the configured component carrier, the UE starts a DRX Inactivity Timer for the component carrier configured with the DRX, or starts a DRX inactivity timer for some component carriers.
  • the partial component carrier may be all or part of the component carriers in the component carrier group.
  • This step is an optional step. Specifically, in the timeout period of the DRX inactivity timer, the UE receives the newly allocated uplink scheduling resource by starting the component carrier of the corresponding DRX inactivity timer.
  • the UE when receiving the PDCCH signaling, such as the uplink scheduling resource from the eNB, the UE needs to start an inactivity timer to enable the UE to be in an active state to receive subsequent uplink scheduling resources.
  • the UE when there are multiple component carriers, the UE receives the PDCCH signaling on the set component carrier, where the PDCCH signaling carries the uplink scheduling resource, and the uplink scheduling resource is mainly used for the UE.
  • the UE may start the corresponding DRX Inactivity Timer for all the component carriers configured with the DRX, and the UE is in the active state during the timing of the DRX Inactivity Timer, and can receive subsequent new scheduling by using all the component carriers configured with the DRX;
  • the UE may not start the DRX Inactivity Timer for all the component carriers configured with the DRX, but only start the corresponding DRX Inactivity Timer for some component carriers, where some of the component carriers may be one or more component carriers in the component carrier group.
  • the component carrier group may be divided according to the logical channel group, and each component carrier in one component carrier group corresponds to the same logical channel; or, the component carrier group may be divided according to the service carried by the component carrier, The service carried by each component carrier in the component carrier group is the same.
  • the eNB can schedule different services on different component carrier groups, and the UE starts a DRX inactivity timer of the component carrier group, and can monitor whether there is a subsequent scheduling related to the service carried by the component carrier group, thereby implementing Receive in time without waste of energy consumption.
  • the above description of the component carrier group is applicable to other embodiments of the present invention, and will not be described later.
  • the UE can start the corresponding DRX Inactivity Timer only for the pre-configured corresponding component carrier, and monitor whether there is a newly allocated uplink scheduling resource during the operation of the DRX Inactivity Timer, thereby further reducing the energy consumption of the UE.
  • Embodiment 2 of the present invention further provides an uplink resource scheduling method. As shown in FIG. 2, the method includes: Step 210: An eNB receives a scheduling request SR that is sent by a UE by using a dedicated scheduling request resource;
  • Step 220 The eNB schedules an uplink scheduling resource for the UE on the set component carrier.
  • the configured component carrier includes, but is not limited to, one or more of the following component carriers: a component carrier that receives the scheduling request SR, a primary component carrier, a component carrier that is not configured with a DRX, a UE or an eNB pre-configured Member carrier, etc.
  • the eNB may schedule an uplink scheduling resource for the UE on the component carrier that receives the scheduling request SR, the primary component carrier, the component carrier that is not configured with the DRX, or the pre-configured component carrier. In this way, the UE can receive the uplink scheduling resource on the set component carrier.
  • the eNB sends the uplink scheduling resource on the configured component carrier, so that the UE can only listen to the configured component carrier, thereby solving the waste caused by the UE receiving the uplink scheduling resource on multiple component carriers in the prior art.
  • the problem of energy consumption In the embodiment 3 of the present invention, the component carrier set by the primary component carrier is taken as an example, and the scheduling and acquiring process of the uplink scheduling resource is described.
  • the primary component carrier here can be regarded as a primary carrier among a plurality of component carriers. As shown in FIG. 3, the method includes:
  • Step 310 The UE sends a scheduling request SR to the eNB through a dedicated scheduling request resource.
  • Step 320 After receiving the scheduling request SR sent by the UE, the eNB schedules the UE on the primary component carrier.
  • the UL Grant is used by the UE to send a buffer status report BSR to the eNB.
  • Step 330 The UE monitors the PDCCH on the primary component carrier, and receives the UL Grant 0.
  • the UE is only active on the primary component carrier, and monitors the PDCCH to receive the UL Grant 0.
  • Step 340 After receiving the UL Grant on the primary component carrier, the UE starts the corresponding DRX Inactivity Timer for all the component carriers configured with the DRX to receive the subsequent possible UL Grant 0.
  • the primary component carrier may also be other configured component carriers.
  • the eNB and the UE may determine, on which component carrier component, the UL Grant is sent and received by using a protocol, or a default setting, or a signaling preset manner.
  • the configured component carrier is a member that sends the scheduling request SR.
  • the eNB sends a UL Grant on the component carrier that receives the SR.
  • the UE monitors the PDCCH on the component carrier and receives the UL Grant.
  • the default is to send and receive a UL Grant on a component carrier that is not configured with the DRX, and the UE receives the UL Grant on the component carrier.
  • the eNB and the UE may pre-configure that a certain component carrier or a certain component carrier may send and receive the UE Grant, and the eNB sends a UL Grant on the pre-configured component carrier, and the UE receives the component on the component carrier.
  • the uplink scheduling resource is sent and received on the set component carrier, which can be solved in the prior art.
  • the UE can start the corresponding DRX Inactivity Timer only for the pre-configured component carrier, and monitor whether there is a newly allocated uplink scheduling resource during the DRX Inactivity Timer operation, thereby further reducing the energy consumption of the UE.
  • the embodiment of the present invention provides a user equipment UE40, which can implement the uplink resource obtaining method provided by the foregoing embodiments. As shown in FIG. 4, the UE 40 includes:
  • the sending unit 401 is configured to send a scheduling request SR to the eNB by using a dedicated scheduling request resource.
  • the receiving unit 402 is configured to: after the sending unit sends the scheduling request, monitor the PDCCH on the set component carrier, and receive the uplink scheduling resource. Specifically, the receiving unit 402 may perform, according to a preset, a component carrier that transmits the scheduling request SR, or a primary component carrier, or a component carrier that is not configured with a DRX, or a pre-configured component carrier. The PDCCH is monitored and the UL Grant is received.
  • the pre-configured component carrier may be a component carrier pre-configured by the UE or the eNB.
  • the UE may further include a timer starting unit 403, configured to: after the receiving unit 402 receives the uplink scheduling resource, start a DRX inactivity timer for the component carrier configured with the DRX, or initiate DRX inactivity for some component carriers.
  • the timer where some of the component carriers may be all or part of a component carrier in a component carrier group.
  • the component carrier group may be a group of component carriers divided according to a logical channel group and/or a bearer service. For example, each component carrier in a component carrier group corresponds to the same logical channel, and/or carries the same service.
  • the foregoing method can implement the method for obtaining the uplink resource provided by the foregoing embodiments, and solve the problem of wasteful energy consumption caused by the UE receiving the uplink scheduling resource on multiple component carriers in the prior art.
  • inventions of the present invention also provide a communication system that includes a user equipment UE, and a base station with which to communicate.
  • the UE may be the user equipment 40 provided by the foregoing embodiment.
  • the embodiment of the present invention provides a method for the uplink resource scheduling provided by the foregoing embodiment.
  • the eNB 50 includes:
  • the receiving unit 501 is configured to receive a scheduling request SR that is sent by the UE by using a dedicated scheduling request resource.
  • the scheduling unit 502 is configured to schedule an uplink scheduling resource for the UE on the set component carrier.
  • the set member carrier may be one or more of a component carrier receiving the scheduling request SR, a primary component carrier, a component carrier not configured with DRX, or a pre-configured component carrier.
  • the scheduling unit allocates uplink resources on the configured component carriers, so that the UE can reduce energy consumption and avoid energy waste.
  • the method for scheduling the uplink resource in the foregoing embodiment can be implemented by using the foregoing modules.
  • FIG. 6 An illustration of the communication system is shown.
  • the UE receives the uplink resource only on the set component carrier after sending the scheduling request, which is compared to the UE in the prior art.
  • Receiving uplink scheduling resources on component carriers can effectively avoid waste of UE energy consumption.
  • the UE can further reduce the energy consumption of the UE by starting the corresponding DRX Inactivity Timer only for the pre-configured corresponding member carrier.
  • the program is executed by instructing the associated hardware, and the program can be stored in a computer readable storage medium such as a ROM/RAM, a magnetic disk, an optical disk, or the like.

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Description

一种上行资源获取方法、 调度方法、 装置及系统 本申请要求于 2009年 6月 30日提交中国专利局、 申请号为 200910158458. 9、发明 名称为 "一种上行资源获取方法、 调度方法、 装置及系统" 的中国专利申请的优先权， 其全部内容通过引用结合在本申请中。 技术领域 本发明涉及长期演进技术， 具体地， 涉及一种上行资源获取方法、 调度方法、 装置 及系统。 发明背景 在长期演进（Long Term Evolution, LTE)系统中最大的带宽是 20M， 如果连接态的 用户设备 (User Equipment, UE) 配置了 DRX (Discontinuous Reception, 非连续接收） 模式， UE需要在发送调度请求 （schedule request, SR) 后保持活跃 （Active) 状态， 以便能够监听 PDCCH直到得到有效的上行调度资源 UL Grant (上行授权）。
LTE-A (Advanced LTE, 高级的长期演进） 系统是 LTE系统的延伸和增强。 为把最 大带宽扩大到 100M， LTE-A系统正在研究一种载波聚合（CA， Carrier Aggregation)的 技术， 把不同频段的多个载波聚合起来组成最大 100M的带宽， 从而将有能力发送或接 收大于 20M带宽的 LTE-A的 UE可以在多个成员载波 （Component Carrier, CC) 上同时 接收或发送数据。
LTE-A 系统中的各成员载波的带宽不能大于 20M， 且具有各自独立的 PDCCH (Physical Downlink Control Channel ,物理下行控制信道）和 PUCCH (Physical Uplink Control Channel , 物理上行控制信道）。 如果 UE在多个成员载波上配置了 DRX模式， 需要发送上行数据的 UE在发送资源调度请求 SR给演进基站 （Evolved Node B， eNB) 后， 按照 LTE系统中的处理方式， UE将在所有配置了 DRX的成员载波上都处于 Active (活跃） 状态以监听 PDCCH调度， 这将浪费 UE大量的能耗。 发明内容
本发明实施例提供一种上行资源获取方法、 调度方法、 装置及系统。
本发明实施例提供的一种上行资源获取方法， 包括： 通过专用的调度请求资源向基 站发送调度请求； 在设定的成员载波上监听物理下行控制信道， 接收上行调度资源； 所 述设定的成员载波包括以下任一项或多项： 发送所述调度请求 SR的成员载波， 或者主 成员载波， 或者未配置 DRX的成员载波， 或者预先配置的成员载波。
本发明实施例还提供的一种上行资源调度方法， 包括： 接收专用调度请求资源上的 来自用户设备的调度请求； 在设定的成员载波上为所述用户设备调度上行调度资源； 所 述设定的成员载波以下任一项或多项： 接收所述调度请求 SR的成员载波， 或者主成员 载波， 或者未配置 DRX的成员载波， 或者预先配置的成员载波。
本发明实施例还提供一种用户设备， 包括发送单元和接收单元。 其中， 发送单元用 于通过专用的调度请求资源向基站发送调度请求。接收单元用于在设定的成员载波上监 听物理下行控制信道，接收上行调度资源。所述设定的成员载波包括以下任一项或多项： 发送所述调度请求 SR的成员载波， 或者主成员载波， 或者未配置 DRX的成员载波， 或 者预先配置的成员载波。
本发明实施理还提供一种通信系统， 包括上述用户设备。
本发明实施例还提供一种基站， 包括接收单元和调度单元。 其中， 接收单元用于接 收专用调度请求资源上的来自用户设备的调度请求。调度单元用于在设定的成员载波上 为所述用户设备调度上行调度资源。 所述设定的成员载波包括以下任一项或多项： 接收 所述调度请求 SR的成员载波， 或者主成员载波， 或者未配置 DRX的成员载波， 或者预 先配置的成员载波。
本发明实施理还提供一种通信系统， 包括上述基站。
本发明实施例通过在设定的成员载波上调度上行资源， 能够解决 UE监听 PDCCH调 度时浪费能耗的问题， 避免了能耗的浪费。 附图简要说明 为了更清楚地说明本发明实施例或现有技术中的技术方案， 下面将对实施例描述中 所需要使用的附图作简单地介绍， 显而易见地， 下面描述中的附图仅仅是本发明的一些 实施例， 对于本领域普通技术人员来讲， 在不付出创造性劳动性的前提下， 还可以根据 这些附图获得其他的附图。
图 1为本发明实施例 1提供的方法流程图；
图 2为本发明实施例 2提供的方法流程图；
图 3为本发明实施例 3提供的方法流程图；
图 4为本发明实施例 4提供的用户设备的框图； 图 5为本发明实施例 5提供的基站的框图；
图 6为本发明另一个实施例提供的通信系统示意图。 实施本发明的方式 下面将结合本发明实施例中的附图， 对本发明实施例中的技术方案进行清楚、 完整 地描述， 显然， 所描述的实施例仅仅是本发明一部分实施例， 而不是全部的实施例。 基 于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有 其他实施例， 都属于本发明保护的范围。
本发明实施例 1提供一种上行资源获取方法， 如图 1所示， 该方法包括： 步骤 110， UE通过专用的调度请求资源向 eNB发送调度请求 SR。
LTE-A系统中存在多个成员载波， 每个成员载波上都有独立的 PUCCH, 因此， 每个 成员载波上都可以配置专用 SR资源给 UE， 一般地， LTE-A的 UE可以只在一个成员载波 上配置专用 SR资源。 当 UE需要发送上行数据时， 会触发（trigger)常规 BSR (Buffer Status Report, 缓冲区状态报告）。 如果此时没有可用的上行调度资源， UE可以在配置 的专用 SR ( Scheduling Request, 调度请求） 资源上发送调度请求 SR给 eNB。
步骤 120， UE在设定的成员载波上监听物理下行控制信道， 并接收上行调度资源， 如 IX G t。
其中， 所述设定的成员载波包括但不限于如下成员载波中的一个或多个： 发送所述 调度请求 SR的成员载波、 主 （Anchor) 成员载波、 未配置 DRX的成员载波， 以及， UE 或 eNB通过信令预先配置的一个成员载波或多个成员载波， 这里的信令包括 RRC信令、 MAC信令等。
本发明实施例通过在设定的成员载波上接收上行调度资源，可以解决现有技术中在 多个成员载波上接收上行调度资源造成的浪费能耗的问题。
步骤 130， UE在所述设定的成员载波上接收到上行调度资源后， 对配置了 DRX的成 员载波启动 DRX不活动定时器 （DRX Inactivity Timer), 或对部分成员载波启动 DRX 不活动定时器。 其中， 部分成员载波可以是成员载波组中的全部或部分成员载波。
本步骤为可选步骤。具体的， 在 DRX不活动定时器的计时时间内， UE通过启动相应 DRX不活动定时器的成员载波接收后续新分配的上行调度资源。
根据现有 LTE系统中的 DRX操作模式， UE在接收到 PDCCH信令，如来自 eNB的上行 调度资源时， UE需要启动不活动定时器让 UE处于活跃态， 以接收后续上行调度资源。 在本发明实施例中，在有多个成员载波的情况下， UE在设定的成员载波上收到 PDCCH 信令， 该 PDCCH信令中携带上行调度资源， 所述上行调度资源主要用于 UE发送 BSR给 eNB, UE可以对所有配置了 DRX的成员载波启动相应的 DRX Inactivity Timer, UE在 DRX Inactivity Timer计时时间内处于活跃态， 可以通过所有配置了 DRX的成员载波接 收后续新的调度； 或者， UE可以不对所有配置了 DRX的成员载波启动 DRX Inactivity Timer, 而是只对部分成员载波启动相应的 DRX Inactivity Timer, 这里的部分成员载 波可以是成员载波组中的一个或多个成员载波。
需要说明的是， 本实施例中可以根据逻辑信道组划分成员载波组， 一个成员载波组 中的各成员载波对应相同的逻辑信道； 或者， 可以根据成员载波所承载的业务划分成员 载波组， 一个成员载波组中的各成员载波所承载的业务相同。 这样， eNB可以在不同的 成员载波组上调度不同的业务， UE启动一个成员载波组相应的 DRX不活动定时器，就可 以监听后续是否有与该成员载波组承载的业务相关的调度， 从而实现及时接收且不会造 成能耗的浪费。上述关于成员载波组的说明适用于本发明其他实施例，后文将不再赘述。
本实施例中， UE可以通过只对预配置的对应成员载波启动对应的 DRX Inactivity Timer, 并在该 DRX Inactivity Timer运行期间监听后续是否有新分配的上行调度资源， 从而进一步降低 UE的能耗。 本发明实施例 2还提供一种上行资源调度方法。 如图 2所示， 该方法包括： 步骤 210， eNB接收 UE通过专用调度请求资源发送的调度请求 SR;
步骤 220， eNB在设定的成员载波上为 UE调度上行调度资源。
其中， 所述设定的成员载波包括但不限于如下成员载波中的一个或多个： 接收所述 调度请求 SR的成员载波、 主成员载波、 未配置 DRX的成员载波、 UE或 eNB预先配置的 成员载波等。
具体地， eNB可以在接收所述调度请求 SR的成员载波、 主成员载波、 未配置 DRX 的成员载波、 或者预先配置的成员载波上为 UE调度上行调度资源。 这样， UE就可以在 设定的成员载波上接收上行调度资源了。
本发明实施例通过 eNB在设定的成员载波上发送上行调度资源， 使得 UE可以仅监 听该设定的成员载波， 从而解决现有技术中 UE在多个成员载波上接收上行调度资源造 成的浪费能耗的问题。 本发明实施例 3以主成员载波为设定的成员载波为例，对上行调度资源的调度和获 取过程进行说明。这里的主成员载波可以看作是多个成员载波中的主载波。如图 3所示， 该方法包括：
步骤 310， UE通过专用的调度请求资源向 eNB发送调度请求 SR。
步骤 320， eNB接收到 UE发来的调度请求 SR之后， 在主成员载波上给 UE调度 UL
Grant, 该 UL Grant用于 UE向 eNB发送缓冲区状态报告 BSR。
步骤 330， UE在主成员载波上监听 PDCCH, 接收 UL Grant 0
此时， UE只在主成员载波上处于活跃态， 监听 PDCCH以接收 UL Grant 0
步骤 340， UE在主成员载波上接收到 UL Grant后， 对所有配置了 DRX的成员载波 启动相应的 DRX Inactivity Timer, 以接收后续可能的 UL Grant 0
具体的描述可以参考上述实施例 1， 这里不再赘述。
在本发明其他实施例中， 所述主成员载波还可以是其他设定的成员载波。 eNB和 UE 可以采用协议， 或者默认设置， 或者信令预先设定的方式， 确定在哪个或哪些成员载波 上发送和接收 UL Grant . 例如， 设定的成员载波为发送所述调度请求 SR的成员载波， 则 eNB在接收 SR的成员载波上发送 UL Grant, 相应的， UE在该成员载波上监听 PDCCH, 并接收该 UL Grant。又如，默认设置为在未配置 DRX的成员载波上发送和接收 UL Grant, 则 UE在该成员载波上接收该 UL Grant。 再如， eNB和 UE可以预先配置具体的某个或某 些成员载波可以发送和接收 UE Grant, 则 eNB在预先配置的成员载波上发送 UL Grant, UE在该成员载波上接收。
本实施例通过在设定的成员载波上发送和接收上行调度资源，可以解决现有技术中
UE在多个成员载波上接收上行调度资源造成的浪费能耗的问题。 并且， UE可以通过只 对预配置的成员载波启动对应的 DRX Inactivity Timer, 并在该 DRX Inactivity Timer 运行期间监听后续是否有新分配的上行调度资源， 从而进一步降低 UE的能耗。 本发明实施例 4提供一种用户设备 UE40 ,可以实现上述各实施例提供的上行资源获 取方法。 如图 4所示， 该 UE40包括：
发送单元 401， 用于通过专用的调度请求资源向 eNB发送调度请求 SR。
接收单元 402，用于在发送单元发送调度请求之后，在设定的成员载波上监听 PDCCH, 接收上行调度资源。具体地， 该接收单元 402可按照预先设定， 在发送所述调度请求 SR 的成员载波、 或者主成员载波、 或者未配置 DRX的成员载波、 或者预先配置的成员载波 上监听 PDCCH, 接收 UL Grant . 其中， 所述预先配置的成员载波可以是 UE或 eNB预先 配置的成员载波。
所述 UE还可以包括定时器启动单元 403，用于在接收单元 402接收到上行调度资源 后， 对配置了 DRX的成员载波启动 DRX不活动定时器， 或者， 或者对部分成员载波启动 DRX不活动定时器， 这里的部分成员载波可以是一个成员载波组中的全部或部分成员载 波。 其中， 成员载波组可以是根据逻辑信道组和 /或承载的业务划分的一组成员载波。 例如， 一个成员载波组中的各成员载波对应相同的逻辑信道， 和 /或承载相同的业务。
通过上述各模块可以实现前述各实施例提供的上行资源获取的方法，解决现有技术 中 UE在多个成员载波上接收上行调度资源造成的浪费能耗的问题。
本发明其他实施例还提供了一种通信系统，所述系统包括用户设备 UE， 以及与其通 信的基站。 其中， 该 UE可以是上述实施例提供的用户设备 40。 本发明实施例 5提供一种基站 eNB50， 可以实现前述实施例提供的上行资源调度的 方法。 如图 5所示， 该 eNB50包括：
接收单元 501， 用于接收 UE通过专用调度请求资源发送的调度请求 SR。
调度单元 502， 用于在设定的成员载波上为 UE调度上行调度资源。例如， 设定的成 员载波可以为接收所述调度请求 SR的成员载波、 主成员载波、 未配置 DRX的成员载波、 或者预先配置的成员载波中的一项或多项。
本发明实施例通过调度单元在设定的成员载波上调度上行资源， 可以使 UE降低能 耗， 避免能耗浪费。
通过上述各模块可以实现前述实施例的上行资源调度的方法，可以参考其他实施例 中的相应描述， 这里不再赘述。
本发明其他实施例还提供了一种通信系统，所述系统包括基站 eNB601， 以及与其通 信的至少一个 UE602。 其中， 该 eNB601可以是上述实施例提供的基站 50。 如图 6所示， 为该通信系统的一个实例图示。
综上所述， 本发明实施例中， 在多个成员载波配置 DRX情况下， UE在发送调度请求 后仅在设定的成员载波上接收上行资源， 相比于现有技术的 UE在多个成员载波上接收 上行调度资源， 可以有效避免 UE能耗的浪费。 并且， UE通过只对预配置的对应成员载 波启动对应的 DRX Inactivity Timer, 可以进一步降低 UE的能耗。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分步骤可以通过 程序来指令相关的硬件来完成， 该程序可以存储于一计算机可读取存储介质中， 比如 ROM/RAM, 磁碟、 光盘等。
以上所述的具体实施例， 对本发明的目的、 技术方案和有益效果进行了进一步详细 说明， 所应理解的是， 以上所述仅为本发明的具体实施例而已， 并不用于限定本发明的 保护范围， 凡在本发明的精神和原则之内， 所做的任何修改、 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
1、 一种上行资源获取方法， 其特征在于， 包括：
通过专用的调度请求资源向基站发送调度请求；
在设定的成员载波上监听物理下行控制信道， 接收上行调度资源；
所述设定的成员载波包括以下任一项或多项： 发送所述调度请求 SR的成员载波， 或 者主成员载波， 或者未配置 DRX的成员载波， 或者预先配置的成员载波。
2、 根据权利要求 1所述的方法， 其特征在于， 所述接收上行调度资源之后， 所述方 法还包括：
对配置了非连续接收 DRX的成员载波，或者，成员载波组中的全部或部分成员载波启 动 DRX不活动定时器。
3、 根据权利要求 2所述的方法， 其特征在于， 所述成员载波组中的各成员载波对应 相同的逻辑信道， 和 /或承载相同的业务。
4、 根据权利要求 1所述的方法， 其特征在于， 所述预先配置的成员载波包括： 用户设备预先配置的成员载波或者基站预先配置的成员载波。
5、 一种上行资源调度方法， 其特征在于， 包括：
接收用户设备通过专用调度请求资源发送的调度请求；
在设定的成员载波上为所述用户设备调度上行调度资源；
所述设定的成员载波以下任一项或多项： 接收所述调度请求 SR的成员载波， 或者主 成员载波， 或者未配置 DRX的成员载波， 或者预先配置的成员载波。
6、 一种用户设备， 其特征在于， 包括：
发送单元， 用于通过专用的调度请求资源向基站发送调度请求；
接收单元， 用于在设定的成员载波上监听物理下行控制信道， 接收上行调度资源； 所述设定的成员载波包括以下任一项或多项： 发送所述调度请求 SR的成员载波， 或者主 成员载波， 或者未配置 DRX的成员载波， 或者预先配置的成员载波。
7、 根据权利要求 6所述的用户设备， 其特征在于， 所述用户设备还包括： 定时器启动单元， 用于在所述接收单元接收上行调度资源之后， 对配置了非连续接 收 DRX的全部成员载波， 或者成员载波组中的全部或部分成员载波启动 DRX不活动定时 器。
8、 一种通信系统， 其特征在于， 包括如权利要求 6或 7所述的用户设备。
9、 一种基站， 其特征在于， 包括：
接收单元， 用于接收专用调度请求资源上的来自用户设备的调度请求；
调度单元， 用于在设定的成员载波上为所述用户设备调度上行调度资源； 所述设定 的成员载波包括以下任一项或多项：接收所述调度请求 SR的成员载波，或者主成员载波， 或者未配置 DRX的成员载波， 或者预先配置的成员载波。
10、 一种通信系统， 其特征在于， 包括如权利要求 9所述的基站。
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EP3154299A1 (en) 2017-04-12
CN105530710B (zh) 2019-03-05
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EP2437563B1 (en) 2016-10-26
ES2774392T3 (es) 2020-07-20

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