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WO2011069368A1 - 一种多载波上的不连续接收的优化方法和演进基站 - Google Patents

一种多载波上的不连续接收的优化方法和演进基站 Download PDF

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Publication number
WO2011069368A1
WO2011069368A1 PCT/CN2010/075303 CN2010075303W WO2011069368A1 WO 2011069368 A1 WO2011069368 A1 WO 2011069368A1 CN 2010075303 W CN2010075303 W CN 2010075303W WO 2011069368 A1 WO2011069368 A1 WO 2011069368A1
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Prior art keywords
drx
component carrier
user equipment
enb
service data
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PCT/CN2010/075303
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English (en)
French (fr)
Inventor
王坚
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ZTE Corp
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ZTE Corp
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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]
    • H04W28/18—Negotiating wireless communication parameters
    • 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 present invention relates to a discontinuous reception (DRX) technology in the field of communications, and in particular to an optimization method and an evolved base station for discontinuous reception on multiple carriers.
  • DRX discontinuous reception
  • LTE Long Term Evolution
  • OFDM Orthogonal Frequency Division Multiplexing
  • MIMO Multiple Input Multiple Output
  • LTE-A Advanced Long Term Evolution
  • carrier aggregation is the most important means to increase the transmission rate requirements.
  • the so-called carrier aggregation means that the user equipment (UE) can receive/transmit data on multiple component carriers at the same time. Different number of component carriers with different bandwidths can be configured in the downlink/uplink, and each component carrier corresponds to one hybrid automatic request.
  • the network can distribute traffic data across component carriers for transmission to increase the transmission rate.
  • FIG. 1 is a schematic structural diagram of carrier aggregation.
  • the MAC entity 13 is scheduled/prioritized. Assigned to the corresponding HARQ MAC entity 14, the HARQ MAC entity 14 processes and submits to the corresponding component carrier, wherein the PDCP entity 11 encrypts, compresses/intlinests the service data, and the RLC entity 12 processes the data processed by the PDCP entity 11 according to the data. Wireless resources are segmented.
  • PDCP packet data convergence protocol
  • RLC radio link control
  • the DRX technology is a technology used by the UE to save power.
  • the basic principle is: The UE does not continuously monitor the PDCCH channel and reduces the power loss of related components.
  • DRX has been standardized in LTE Release (R) 8, and its configuration mechanism is as follows:
  • the UE is in Radio Resource Control Idle (RRC IDLE)
  • RRC IDLE Radio Resource Control Idle
  • the DRX parameter configuration of the UE is given by the system information, that is, the DRX parameter of the UE in the idle (IDLE) state is a common configuration; in the RRC Connected state, the DRX parameter configuration of the UE is configured by dedicated control signaling.
  • the network configures UE-specific DRX parameters.
  • the DRX parameters include: DRX cycle (DRX cycle).
  • the DRX cycle includes a long DRX-Cycle, a short DRX-Cycle, a DRX Start Offset, and some timers:
  • On Duration Timer Specifies the number of consecutive PDCCH subframes to be monitored at the beginning of the DRX cycle.
  • DRX-Inactivity Timer The number of consecutive PDCCH subframes that the UE monitors after the PDCCH indicating the initial transmission of the downlink/uplink user data, that is, the UE is extended after receiving the initial transmission indicated by the PDCCH. Activity time (Active Time).
  • MAC-Contention Resolution Timer During random access, the UE monitors the number of consecutive PDCCH subframes after the message (MSG) 3 is transmitted.
  • DRX-Retransmission Timer The UE has started to expect the number of consecutive PDCCH subframes when it expects downlink retransmission.
  • the DRX parameter configuration finally divides the time of the UE into: monitoring the active time of the PDCCH (Active Time) and the inactive time (Inactive Time) of not monitoring the PDCCH.
  • the active time includes: a duration of the listening duration timer, a DRX inactivity timer and a DRX retransmission timer, a time of waiting for an uplink grant (UL grant) after the UE sends a scheduling request (SR), and a UE
  • the MAC-contention resolution timer running time after the MSG 3 is retransmitted/transmitted, the time when the UE waits for the PDCCH after receiving the MSG 2 (non-contention access), the time when the UE waits for the UL grant to be allocated, and the like.
  • the DRX mechanism of the LTE R8 is also closely related to other processes located in the MAC layer.
  • the UE For the uplink, after the UE completes the random access, the UE sends an SR request scheduling to the network, the UE is in an active time state, and the network sends a first-pass UL grant to the UE.
  • the UE After receiving the UE, the UE starts the DRX inactivity timer to listen to the subsequent possible PDCCH, performs uplink transmission after processing delay (UL transmission), and then receives acknowledgement/non-acknowledgement in a specified subframe after processing delay (ACK/ NACK), and listen to the UL grant.
  • UL transmission uplink transmission after processing delay
  • ACK/ NACK acknowledgement/non-acknowledgement in a specified subframe after processing delay
  • the non-adaptive retransmission will be performed at the next transmission time of the process.
  • the UE receives the downlink grant (DL assignment) and starts.
  • HARQ round-trip time timer RTT timer
  • the DRX retransmission timer will be started to monitor the PDCCH to complete the retransmission.
  • DRX MAC Command CE component carrier DRX MAC command control unit
  • the UE changes the current short/long period type while canceling the active state of the current DRX cycle.
  • the above mechanisms are equally applicable on component carriers from the perspective of a single component carrier, since the component carriers on the LTE-A independently configure the PDCCH channel for uplink grant or downlink grant, and the PDCCH may include one
  • the carrier identifier is used to allocate resources of the component carrier and other component carriers. Therefore, LTE-A needs to introduce some new DRX mechanisms to facilitate optimization from the overall perspective and improve UE performance.
  • the current scheme is to divide the component carrier into an anchor carrier and a non-anchor carrier, and the anchor carrier has a complete DRX configuration.
  • the non-anchor carrier does not actively monitor the PDCCH, when the anchor carrier is notified, The PDCCH is monitored again.
  • CQI channel quality indicator
  • PMI precoding matrix indication
  • RI rank indication
  • SRS sounding reference signal
  • the technical problem to be solved by the present invention is to propose an optimization method for discontinuous reception on multiple carriers and an evolved base station, which can realize discontinuous reception of multiple carriers.
  • the present invention provides an optimization method for discontinuous reception on a multi-carrier, which is applied to the network side, and includes:
  • the evolved base station eNB sets the discontinuous reception DRX configuration parameter for the component carrier allocated to the user equipment, selects an equivalent DRX period, and sets the actual DRX period of each component carrier of the user equipment to be the user equipment component carrier. Multiplying the number by the equivalent DRX period, the DRX start offset of each component carrier is sequentially different by an equivalent DRX period, and the DRX configuration parameter is informed to the user equipment;
  • the eNB sends the physical downlink control channel PDCCH signaling by selecting a component carrier that is in active time according to the actual DRX cycle and the DRX start offset, and scheduling the component carrier that is in active time or inactive time.
  • the above method can also have the following characteristics:
  • the step of the eNB selecting an equivalent DRX cycle includes:
  • the eNB searches for the service that the user equipment has the smallest DRX cycle, and uses the minimum DRX cycle as the equivalent DRX cycle.
  • the eNB informs the user equipment of the component carrier that transmits the service data by using the PDCCH signaling, and then sends or receives the service data on the component carrier of the transport service data.
  • the present invention provides an optimization method for discontinuous reception on a multi-carrier, which is applied to the user side, and includes:
  • the discontinuous reception DRX configuration parameter sent by the evolved base station eNB Receiving, by the user equipment, the discontinuous reception DRX configuration parameter sent by the evolved base station eNB, and monitoring the physical downlink control channel PDCCH signaling sent on the component carrier of the active time according to the actual DRX period and the DRX start offset in the DRX configuration parameter; as well as
  • the user equipment After receiving the PDCCH signaling, the user equipment learns a component carrier that transmits service data according to the PDCCH signaling, and further receives or transmits service data on a component carrier of the transmission service data.
  • the present invention provides an optimization method for discontinuous reception on multiple carriers, including:
  • the DRX cycle, and setting the actual DRX period of each component carrier of the user equipment is the number of the user equipment component carriers multiplied by the equivalent DRX period, and the DRX starting offset of each component carrier is sequentially different by an equivalent
  • the DRX configuration parameter is used to notify the user equipment of the DRX configuration parameter; and, according to the actual DRX period and the DRX start offset, the eNB sends PDCCH signaling by selecting a component carrier that is in active time, and scheduling the Component carrier of active time or inactive time;
  • the user equipment monitors PDCCH signaling sent on a component carrier that is active at the active DRX period and the DRX start offset according to the received DRX configuration parameter.
  • the above method can also have the following characteristics:
  • the step of the eNB selecting an equivalent DRX cycle includes:
  • the eNB searches for the service that the user equipment has the smallest DRX cycle, and uses the minimum DRX cycle as the equivalent DRX cycle.
  • the eNB sends the PDCCH signaling on the component carrier that is in the active time, and informs the user equipment to transmit the component carrier of the service data, and then sends or receives the service data on the component carrier of the transmission service data;
  • the user equipment After receiving the PDCCH signaling, the user equipment learns a component carrier that transmits service data according to the PDCCH signaling, and further receives or transmits service data on a component carrier of the transmission service data.
  • the present invention provides an optimization system for discontinuous reception on multiple carriers, including an eNB and a user equipment.
  • the eNB is configured to: when setting a DRX configuration parameter for a component carrier allocated to the user equipment, select an equivalent DRX period, and set an actual DRX period of each component carrier of the user equipment to be the user equipment component carrier. Multiplying the number by the equivalent DRX period, the DRX start offset of each component carrier is sequentially different by an equivalent DRX period, and the DRX configuration parameter is notified to the user equipment; and, according to the actual DRX period and DRX Starting offset, scheduling PDCCH signaling by selecting a component carrier that is active, scheduling the component carrier that is in active time or inactive time;
  • the user equipment is configured to send PDCCH signaling on a component carrier that is active at the active DRX period and the DRX start offset in the received DRX configuration parameter.
  • the eNB is configured to: find that the user equipment has a minimum DRX period, and use the minimum DRX period as an equivalent DRX period.
  • the eNB is configured to notify the user equipment to transmit a component carrier of service data by transmitting PDCCH signaling on a component carrier that is in active time, and further, in the transmission service data. Transmitting or receiving service data on a component carrier;
  • the user equipment is further configured to: after receiving the PDCCH signaling, obtain a component carrier for transmitting service data according to the PDCCH signaling, and further receive or send service data on a component carrier of the transmission service data.
  • the present invention further provides an evolved base station eNB, where the eNB is configured to select an equivalent DRX cycle when setting a discontinuous reception DRX configuration parameter for a component carrier allocated to the user equipment, and set the The actual DRX period of each component carrier of the user equipment is the number of the user equipment component carriers multiplied by the equivalent DRX period, and the DRX starting offset of each component carrier is sequentially different by an equivalent DRX period, and The DRX configuration parameter is sent to the user equipment; and, according to the actual DRX period and the DRX start offset, the physical downlink control channel PDCCH signaling is sent by selecting a component carrier that is in active time, and the active time or non-schedule is scheduled.
  • the component carrier of the active time is configured to select an equivalent DRX cycle when setting a discontinuous reception DRX configuration parameter for a component carrier allocated to the user equipment, and set the The actual DRX period of each component carrier of the user equipment is the number of the user equipment component carriers multiplied by
  • the evolved base station can have the following features:
  • the eNB is configured to: find that the user equipment has a minimum DRX period, and use the minimum DRX period as an equivalent DRX period.
  • the evolved base station can also have the following features:
  • the eNB is configured to notify the user equipment to transmit a component carrier of the service data by transmitting the PDCCH signal on the component carrier that is in active time, and then send or receive the service data on the component carrier of the transmission service data.
  • the present invention further provides a user equipment, where the user equipment is configured to receive a discontinuous reception DRX configuration parameter sent by an evolved base station eNB, according to an actual DRX cycle and a DRX in the DRX configuration parameter.
  • each component carrier has a continuous monitoring time (onDuration) time
  • the user equipment can periodically measure the PDCCH and report CQI/PMI/RI and SRS information, thereby improving the tuning of the base station.
  • 1 is a schematic structural diagram of carrier aggregation
  • FIG. 2 is a flowchart of an optimization method for discontinuous reception on the network side according to an embodiment of the present invention
  • FIG. 3 is a flowchart of an optimization method for discontinuous reception on a user side according to an embodiment of the present invention
  • FIG. 4a is an actual DRX of an application example of the present invention
  • Figure 4b is a schematic diagram of an equivalent DRX cycle of an application example of the present invention.
  • each component carrier has an independent DRX cycle, and the DRX operations on the component carriers are independent of each other; the actual DRX cycle of each component carrier is optimally configured to extend the DRX cycle of each component carrier, thereby saving power of the user equipment. .
  • an Evolved Node B sets a DRX configuration parameter for a component carrier allocated to a user equipment
  • an equivalent DRX cycle is selected, and an actual DRX cycle of each component carrier of the user equipment is set as Multiplying the number of user equipment component carriers by an equivalent DRX cycle, and the DRX start offset of each component carrier is sequentially different by an equivalent DRX cycle, and the DRX configuration parameter is notified to the user equipment;
  • the eNB And according to the actual DRX cycle and the DRX start offset, sending PDCCH signaling by selecting a component carrier that is in active time, scheduling the component carrier that is active time, or scheduling other component carriers;
  • the user equipment sends PDCCH signaling on the component carrier that is active at the active DRX period and the DRX start offset in the received DRX configuration parameter.
  • the eNB searches for the service with the minimum DRX period of the user equipment, and uses the minimum DRX period as the equivalent DRX period.
  • the component carrier that transmits the service data is learned according to the PDCCH signaling, and then the service data is received or transmitted on the component carrier of the transmission service data.
  • the DRX configuration between the component carriers is independent, and the component carrier receiving the PDCCH signaling may be any component carrier in the group that is active at the active time, and the component carrier in the inactive time may be in other components.
  • the component carrier of the active time sends PDCCH signaling to the user equipment to perform downlink or uplink service data transmission.
  • the process flow on the network side includes the following steps:
  • Step 100 The eNB obtains a DRX cycle of each service running on the user equipment.
  • the eNB may learn the service type according to the service request initiated by the user equipment, and further obtain the DRX cycle of the service;
  • Step 110 The eNB allocates a component carrier to the user equipment.
  • the eNB may allocate a component carrier according to factors such as a network load, a capability of the user equipment, and a service requirement, and the allocation process is a prior art, and is not detailed herein;
  • Step 120 The eNB sets DRX configuration parameters for each component carrier of the user equipment.
  • the DRX configuration parameters include the actual DRX period and the DRX start offset, and may include other parameters. Since other parameters are not involved in the present invention, the relevant standards of LTE R8 may be used, so the details are not described herein.
  • the DRX cycle includes Long period and short period, the actual DRX period in the present invention refers to a long period in the DRX cycle;
  • a set of component carriers bears transmission of several services, and the eNB searches for a service with a minimum DRX cycle, and takes the minimum DRX cycle as an equivalent DRX cycle, and all component carriers calculate each component carrier according to the number of component carriers and the equivalent DRX cycle.
  • the period for example, the equivalent DRX period is X, the number of component carriers is N, then the DRX period of each component carrier is x*N, and the DRX starting offset of each component carrier is 0, X, 2x, 3x, (Nl )x;
  • Step 130 The eNB sends the DRX configuration parameter to the user equipment by using RRC control signaling.
  • Step 140 The eNB sends PDCCH signaling to the user equipment according to the DRX configuration parameter of the user equipment, that is, the eNB selects a component carrier that is in active time to send PDCCH signaling.
  • the eNB sends the PDCCH signaling on the component carrier that is in the active time, and informs the user equipment to transmit the component carrier of the service data, and then sends or receives the service data on the component carrier of the transmission service data;
  • the component carrier that transmits the service data is indicated by the carrier identifier in the PDCCH signaling.
  • the component carrier of the transmission service data may be the component carrier at the active time or the component carrier at the inactive time.
  • the processing flow on the user side includes the following steps:
  • Step 200 The user equipment obtains the DRX configuration parameter allocated by the network side by using RRC control signaling.
  • Step 210 The user equipment performs related configuration according to the received DRX configuration parameter.
  • the DRX configuration parameter may include a DRX inactivity timer and a MAC-contention in addition to the actual DRX cycle and the DRX start offset mentioned in the present invention.
  • the user equipment needs to set various timers. Because the present invention only involves the actual DRX cycle and the DRX start offset, other parameters can follow the relevant standards of LTE R8, so it will not be detailed here.
  • the user equipment may also select a DRX configuration mode (using an anchor carrier and a non-anchor carrier) according to the needs of the user equipment.
  • the user equipment uses the DRX configuration parameters configured by the eNB to configure. ;
  • Step 220 The user equipment monitors PDCCH signaling sent on the component carrier that is active at the active time according to the actual DRX period and the DRX start offset in the DRX configuration parameter.
  • Step 230 After receiving the PDCCH signaling, the user equipment learns a component carrier that transmits service data according to the PDCCH signal, and then receives or transmits service data on a component carrier of the transmission service data.
  • the user equipment learns, according to the indication of the carrier identifier in the PDCCH signaling, which component carrier is a component carrier for transmitting service data, and the component carrier of the transmission service data may be the component carrier of the active time, or may be a component carrier that is inactive time, such that the user equipment can receive or transmit component carriers from inactive time, or can receive from the component carrier or send data.
  • each component carrier has an equivalent DRX cycle, and an actual DRX cycle
  • the user equipment can listen to other PDCCHs on the component carrier of the active time on each of the equivalent DRX cycles, and receive other inactive time.
  • the component carrier needs to send PDCCH signaling, and then perform corresponding operations of receiving or transmitting service data on the component carrier indicated by the PDCCH signaling.
  • the UE receives the PDCCH signaling for scheduling the component carrier directly from the component carrier at the active time, or receives the PDCCH signaling for scheduling the component carrier indirectly through other component carriers, the UE is in accordance with the DRX specification of the current R8. (ie, the scheduled component carrier) operates: for example, if it is a new transmission, the DRX-Inactivity Timer of the component carrier is activated to cause the component carrier to enter/extend the active time.
  • the component carrier when the UE indirectly receives a PDCCH signal for scheduling an inactive time component carrier, the component carrier is also operated according to the current DRX specification of R8.
  • Figure 4a is the actual DRX cycle configured.
  • the service data (Data) in the component carrier CC1 is activated by the PDCCH at the first continuous listening time (Onduration) in the component carrier CC2.
  • the service data of the component carrier CC2 is activated by the PDCCH of the component carrier CC1 located at the first continuous listening time (Onduration), and the service data of the component carrier CC3 is determined by the PDCCH of the component carrier CC2 located at the second continuous listening time (Onduration). activation.
  • Figure 4b shows the equivalent DRX period, and the component carriers CC1 CC3 have the same equivalent period.
  • An optimization system for discontinuous reception on multiple carriers in an embodiment of the present invention including an eNB and a user equipment,
  • the eNB is configured to: when setting a DRX configuration parameter for a component carrier allocated to the user equipment, select an equivalent DRX period, and set an actual DRX period of each component carrier of the user equipment to be the user equipment component carrier. Multiplying the number by the equivalent DRX period, the DRX start offset of each component carrier is sequentially different by an equivalent DRX period, and the DRX configuration parameter is notified to the user equipment; and, according to the actual DRX period and DRX Starting offset, transmitting PDCCH signaling by selecting a component carrier that is active, scheduling the component carrier at active time, or scheduling other component carriers;
  • the user equipment is configured to: according to an actual DRX cycle in the received DRX configuration parameter And the DRX start offset monitors PDCCH signaling transmitted on the component carrier that is active.
  • the eNB is configured to: find that the user equipment has a minimum DRX period, and use the minimum DRX period as an equivalent DRX period.
  • the eNB is configured to notify the user equipment to transmit a component carrier of the service data by transmitting PDCCH signaling on the component carrier that is in active time, and then send or receive on the component carrier of the transmission service data.
  • the user equipment is further configured to: after receiving the PDCCH signaling, obtain a component carrier that transmits the service data according to the PDCCH signaling, and further receive or send the service data on the component carrier of the transmission service data. .
  • the present invention also discloses an evolved base station eNB, where the eNB is configured to select an equivalent DRX cycle for setting a discontinuous reception DRX configuration parameter for a component carrier allocated to the user equipment, and set each component carrier of the user equipment.
  • the actual DRX cycle is the number of the above-mentioned user equipment component carriers multiplied by the equivalent DRX cycle, and the DRX start offset of each component carrier is sequentially different by an equivalent DRX cycle, and the above DRX configuration parameters are notified to the user equipment; And transmitting, according to the actual DRX cycle and the DRX start offset, the physical downlink control channel PDCCH signaling by selecting the component carrier that is in active time, and scheduling the component carrier that is in active time or inactive time.
  • the eNB is configured to find that the user equipment has a minimum DRX cycle, and use the minimum DRX cycle as an equivalent DRX cycle.
  • the foregoing eNB is configured to notify the user equipment to transmit a component carrier of the service data by transmitting PDCCH signaling on the component carrier that is in active time, and then send or receive the service data on the component carrier of the transmission service data.
  • the eNB in this embodiment has the same function as the eNB in the foregoing system embodiment, and details are not described herein.
  • the invention also discloses a user equipment, the user equipment is configured to receive the discontinuous reception DRX configuration parameter sent by the evolved base station eNB, and monitor the active time according to the actual DRX period and the DRX start offset in the DRX configuration parameter.
  • the physical downlink control channel PDCCH signaling sent on the component carrier; after receiving the PDCCH signaling, the user equipment learns the component carrier of the transmission service data according to the PDCCH signaling, and further receives or transmits on the component carrier of the transmission service data.
  • Send business data The user equipment in this embodiment is used in the above system embodiment. The functions of the user equipment are the same and will not be described here.
  • the present invention provides an optimization method for discontinuous reception on a multi-carrier and an evolved base station. Since each component carrier has a continuous listening time, the user equipment can periodically measure the PDCCH and report CQI/PMI/RI and SRS information. The scheduling capability of the base station is improved; at the same time, the DRX cycle of the carrier is increased, and the power saving capability is improved.

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Description

一种多载波上的不连续接收的优化方法和演进基站
技术领域
本发明涉及通信领域中的不连续接收 ( DRX , Discontinuous Reception ) 技术， 尤其涉及一种多载波上的不连续接收的优化方法和演进基站。
背景技术
第三代移动通信伙伴组织 （3GPP ) 的长期演进（LTE )技术在空中接口 上釆用了提高传输速率的关键技术， 比如正交频分复用 （OFDM ) 、 多输入 多输出 （MIMO ) 、 高阶调制等， 目标是达到上行 50Mbit/s, 下行 100Mbit/s 的速率要求。 为了进一步提高传输速率以及其它性能， 3GPP确定高级长期演 进（LTE-A )作为 LTE的后续增强版本， 釆用了多载波聚合、 中继节点、 协 同多点接收 /发射等技术， 目标是达到上行 500Mbit/s, 下行 lGbit/s的速率要 求。 其中， 载波聚合是提高传输速率要求的最主要手段。 所谓载波聚合， 是 指用户设备（UE ) 可以同时在多个分量载波上接收 /发送数据， 可以在下行 / 上行配置不同个数具有不同带宽的分量载波， 每个分量载波对应一个混合自 动请求重传（HARQ )媒体接入控制层（MAC ) 实体， 所有的 HARQ MAC 实体由调度 /优先处理 MAC ( Scheduling/priority MAC ) 实体控制。 分量载波 上有一个单独的物理下行控制信道（PDCCH )指示本分量载波或者其它分量 载波上的资源分配。 网络可以将业务数据分布在各分量载波上进行传输以提 高传输速率。 图 1为载波聚合的结构示意图， 业务数据经过分组数据汇聚协 议（ PDCP, Packet data convergence protocol )实体 11和无线链路控制（ RLC, Radio link control ) 实体 12后 , 由调度 /优先处理 MAC实体 13分配给相应的 HARQ MAC实体 14, HARQ MAC实体 14处理后提交给对应的分量载波， 其中 PDCP实体 11对业务数据进行加密、 压缩 /完整性保护， RLC实体 12对 经 PDCP实体 11处理的数据按照无线资源进行分割处理。
DRX技术是 UE用来节省电能的技术， 基本原理为： UE 不连续监听 PDCCH信道， 减少相关部件的电能损耗。 DRX在 LTE版本（R ) 8中已经 进行了规范， 其配置机制如下： 在 UE处于无线资源控制空闲 （RRC IDLE ) 状态下， UE 的 DRX参数配置由系统信息给出， 即， 空闲 （IDLE )状态下 UE的 DRX参数为公共配置； 在 RRC连接 ( RRC Connected )状态下， UE 的 DRX参数配置由专用控制信令给出， 即， 当 UE成功接入到网络后， 网络 配置 UE特定的 DRX参数。 DRX参数包括： DRX周期（ DRX cycle ) , DRX 周期包括长 DRX周期（ Long DRX-Cycle )、短 DRX周期（ Short DRX-Cycle )、 DRX起始偏移 （ DRX Start Offset )和以下一些定时器：
监听持续时间定时器（On Duration Timer ) ： 规定了 DRX周期开始时监 听连续的 PDCCH子帧数。
DRX非活动定时器（ DRX-Inactivity Timer ) ： UE成功解码指示为下行 / 上行用户数据初始传输的 PDCCH后监听连续的 PDCCH子帧数， 也就是指 UE在收到了 PDCCH指示的初始传输后， 延长的活动时间 （Active Time ) 。
MAC-争用解决定时器（ MAC-Contention Resolution Timer ) ： 随机接入 过程中， 消息 （MSG ) 3发送后 UE监听连续的 PDCCH子帧数。
DRX重传定时器（ DRX-Retransmission Timer ) ： UE已开始期待下行重 传时监听连续的 PDCCH子帧数。
DRX参数配置最终将 UE的时间分为：监听 PDCCH的活动时间（ Active Time )和不监听 PDCCH的非活动时间 （ Inactive Time ) 。 其中， 活动时间包 括： 监听持续时间定时器、 DRX非活动定时器和 DRX重传定时器在运行时 的时间、 UE发送调度请求（ SR )后等待上行链路授权（ UL grant ) 的时间、 UE重发 /发送 MSG 3后 MAC-争用解决定时器运行时间、 UE收到了 MSG 2 后 （非竟争接入）后等待 PDCCH的时间、 UE等待分配 UL授权的时间等。 LTE R8 的 DRX机制也与位于 MAC层中的其他过程紧密联系： 对于上行而 言， UE完成随机接入后， 向网络发送 SR请求调度， UE处于活动时间状态， 网络向 UE发送首传 UL授权， UE收到后启动 DRX非活动定时器以监听后 续可能的 PDCCH, 经处理时延后进行上行传输（UL transmission ) , 再经处 理时延后在某规定子帧接收确认 /非确认（ACK/NACK ) , 并监听 UL授权， 如果收到 NACK, 但是没有 UL授权， 那么将在下一个该进程的发送时刻进 行非自适应重传； 对于下行而言， UE收到下行授权（ DL assignment )， 启动 HARQ往返时间定时器（RTT timer ) , 如果 HARQ往返时间定时器到期时， 没有完成解码，那么将启动 DRX重传定时器以监听 PDCCH完成重传。另外， 当收到分量载波 DRX MAC命令控制单元（ DRX MAC Command CE )时， 将 UE改变当前的短 /长周期类型， 同时取消当前 DRX周期的活动状态。
综上， 虽然从单个分量载波的角度出发， 以上这些机制在分量载波上同 样适用， 但是由于 LTE-A上的分量载波独立配置了 PDCCH信道， 用于上行 授权或者下行授权， 并且 PDCCH可以包括一个载波标识， 以分配本分量载 波和其他分量载波的资源， 因此 LTE-A需要引入一些新的 DRX机制以利于 从整体的角度出发来进行优化， 提高 UE的性能。 目前的方案是将分量载波 分为锚定载波和非锚定载波， 锚定载波具有完整的 DRX 配置， 作为监听 PDCCH的主要方法， 非锚定载波不主动监听 PDCCH, 当锚定载波通知时， 再监听 PDCCH。 然而由于非锚定载波没有固定的 DRX周期， 因此在大部分 时间内不能发送周期性的信道质量指示符（CQI ) /预编码矩阵指示 （PMI ) / 秩指示 （RI )和探测参考信号 （SRS )等信息， 给基于信道质量的资源调度 带来困难。
发明内容
本发明要解决的技术问题就是提出一种多载波上的不连续接收的优化方 法和演进基站， 能够实现多载波的不连续接收。
为了解决上述技术问题， 本发明提供一种多载波上的不连续接收的优化 方法， 应用于网络侧， 包括：
演进基站 eNB为分配给用户设备的分量载波设置不连续接收 DRX配置 参数时，选择一等效 DRX周期， 并设置所述用户设备的每个分量载波的实际 DRX周期为所述用户设备分量载波的个数乘以等效 DRX周期， 每个分量载 波的 DRX起始偏移依次相差一个等效 DRX周期， 并将所述 DRX配置参数 告知所述用户设备； 以及
所述 eNB根据所述实际 DRX周期和 DRX起始偏移，通过选择处于活动 时间的分量载波发送物理下行控制信道 PDCCH信令， 调度所述处于活动时 间或非活动时间的分量载波。 上述方法还可具有以下特点：
所述 eNB选择一等效 DRX周期的步骤包括：
所述 eNB查找所述用户设备具有最小 DRX周期的业务，将所述最小 DRX 周期作为等效 DRX周期。
上述方法还可具有以下特点：
在所述 eNB通过选择处于活动时间的分量载波发送 PDCCH信令的步骤 中，
所述 eNB通过所述 PDCCH信令告知所述用户设备传输业务数据的分量 载波， 进而在所述传输业务数据的分量载波上发送或接收业务数据。
为了解决上述技术问题， 本发明提供一种多载波上的不连续接收的优化 方法， 应用于用户侧， 包括：
用户设备接收演进基站 eNB发送的不连续接收 DRX配置参数， 根据所 述 DRX配置参数中的实际 DRX周期和 DRX起始偏移监听处于活动时间的 分量载波上发送的物理下行控制信道 PDCCH信令； 以及
当所述用户设备接收到所述 PDCCH信令后，根据所述 PDCCH信令获知 传输业务数据的分量载波， 进而在所述传输业务数据的分量载波上接收或发 送业务数据。
为了解决上述技术问题， 本发明提供一种多载波上的不连续接收的优化 方法， 包括：
eNB为分配给用户设备的分量载波设置 DRX配置参数时， 选择一等效
DRX周期， 并设置所述用户设备的每个分量载波的实际 DRX周期为所述用 户设备分量载波的个数乘以等效 DRX周期， 每个分量载波的 DRX起始偏移 依次相差一个等效 DRX周期， 将所述 DRX配置参数告知所述用户设备； 以 及， 所述 eNB根据所述实际 DRX周期和 DRX起始偏移， 通过选择处于活动 时间的分量载波发送 PDCCH信令， 调度所述处于活动时间或非活动时间的 分量载波； 以及
所述用户设备根据接收到的 DRX配置参数中的实际 DRX周期和 DRX 起始偏移监听处于活动时间的分量载波上发送的 PDCCH信令。 上述方法还可具有以下特点：
所述 eNB选择一等效 DRX周期的步骤包括：
所述 eNB查找所述用户设备具有最小 DRX周期的业务，将所述最小 DRX 周期作为等效 DRX周期。
上述方法还可具有以下特点：
所述 eNB通过在处于活动时间的分量载波上发送 PDCCH信令， 告知所 述用户设备传输业务数据的分量载波， 进而在所述传输业务数据的分量载波 上发送或接收业务数据；
所述用户设备接收到所述 PDCCH信令后，根据所述 PDCCH信令获知传 输业务数据的分量载波， 进而在所述传输业务数据的分量载波上接收或发送 业务数据。
为了解决上述技术问题， 本发明提供一种多载波上的不连续接收的优化 系统， 包括 eNB和用户设备，
所述 eNB设置为，为分配给用户设备的分量载波设置 DRX配置参数时， 选择一等效 DRX周期， 并设置所述用户设备的每个分量载波的实际 DRX周 期为所述用户设备分量载波的个数乘以等效 DRX周期，每个分量载波的 DRX 起始偏移依次相差一个等效 DRX周期， 将所述 DRX配置参数告知所述用户 设备； 以及， 根据所述实际 DRX周期和 DRX起始偏移， 通过选择处于活动 时间的分量载波发送 PDCCH信令， 调度所述处于活动时间或非活动时间的 分量载波；
所述用户设备设置为， 根据接收到的 DRX配置参数中的实际 DRX周期 和 DRX起始偏移监听处于活动时间的分量载波上发送 PDCCH信令。
上述系统还可具有以下特点：
所述 eNB是设置为， 查找所述用户设备具有最小 DRX周期的业务， 将 所述最小 DRX周期作为等效 DRX周期。
上述系统还可具有以下特点：
所述 eNB是设置为， 通过在处于活动时间的分量载波上发送 PDCCH信 令， 告知所述用户设备传输业务数据的分量载波， 进而在所述传输业务数据 的分量载波上发送或接收业务数据；
所述用户设备还设置为， 接收到所述 PDCCH信令后， 根据所述 PDCCH 信令获知传输业务数据的分量载波， 进而在所述传输业务数据的分量载波上 接收或发送业务数据。
为了解决上述技术问题， 本发明还提供了一种演进基站 eNB, 所述 eNB 设置为， 为分配给用户设备的分量载波设置不连续接收 DRX配置参数时，选 择一等效 DRX周期， 并设置所述用户设备的每个分量载波的实际 DRX周期 为所述用户设备分量载波的个数乘以等效 DRX周期， 每个分量载波的 DRX 起始偏移依次相差一个等效 DRX周期， 并将所述 DRX配置参数告知所述用 户设备； 以及， 根据所述实际 DRX周期和 DRX起始偏移， 通过选择处于活 动时间的分量载波发送物理下行控制信道 PDCCH信令， 调度所述处于活动 时间或非活动时间的分量载波。
该演进基站可具有如下特点：
所述 eNB是设置为， 查找所述用户设备具有最小 DRX周期的业务， 将 所述最小 DRX周期作为等效 DRX周期。
该演进基站还可具有如下特点：
所述 eNB是设置为， 通过在处于活动时间的分量载波上发送 PDCCH信 令， 告知所述用户设备传输业务数据的分量载波， 进而在所述传输业务数据 的分量载波上发送或接收业务数据。 为了解决上述技术问题， 本发明还提供 了一种用户设备， 所述用户设备设置为， 接收演进基站 eNB发送的不连续接 收 DRX配置参数，根据所述 DRX配置参数中的实际 DRX周期和 DRX起始 偏移监听处于活动时间的分量载波上发送的物理下行控制信道 PDCCH信令； 当所述用户设备接收到所述 PDCCH信令后，根据所述 PDCCH信令获知传输 业务数据的分量载波， 进而在所述传输业务数据的分量载波上接收或发送业 务数据。
本发明的有益效果如下：
1、 由于各分量载波都有持续监听时间 （onDuration ) 时间， 因此用户设 备可以周期性测量 PDCCH并上报 CQI/PMI/RI和 SRS信息，提高了基站的调 度能力；
2、 增长了载波的 DRX周期， 提高了电能节省能力。 附图概述
图 1为载波聚合的结构示意图；
图 2为本发明实施例的网络侧不连续接收的优化方法的流程图； 图 3为本发明实施例的用户侧不连续接收的优化方法的流程图； 图 4a为本发明应用示例的实际 DRX周期示意图；
图 4 b为本发明应用示例的等效 DRX周期示意图。
本发明的较佳实施方式
在本发明中， 各分量载波具有独立的 DRX周期， 分量载波上的 DRX操 作相互独立； 对各分量载波的实际 DRX周期进行优化配置， 以延长每个分量 载波的 DRX周期， 节省用户设备的电能。
具体地， 演进基站（Evolved Node B, eNB )为分配给用户设备的分量载 波设置 DRX配置参数时， 选择一等效 DRX周期， 并设置所述用户设备的每 个分量载波的实际 DRX周期为所述用户设备分量载波的个数乘以等效 DRX 周期， 每个分量载波的 DRX起始偏移依次相差一个等效 DRX周期， 将所述 DRX配置参数告知所述用户设备； 以及， 所述 eNB根据所述实际 DRX周期 和 DRX起始偏移， 通过选择处于活动时间的分量载波发送 PDCCH信令， 调 度所述处于活动时间的分量载波， 或者调度其它分量载波；
所述用户设备根据接收到的 DRX配置参数中的实际 DRX周期和 DRX 起始偏移监听处于活动时间的分量载波上发送 PDCCH信令。
其中， 所述 eNB查找所述用户设备具有最小 DRX周期的业务， 将所述 最小 DRX周期作为等效 DRX周期。
所述 eNB通过在处于活动时间的分量载波上发送 PDCCH信令， 告知所 述用户设备传输业务数据的分量载波， 进而在所述传输业务数据的分量载波 上发送或接收业务数据；
所述用户设备接收的所述 PDCCH信令后，根据所述 PDCCH信令获知传 输业务数据的分量载波， 进而在所述传输业务数据的分量载波上接收或发送 业务数据。
下面结合附图及具体实施例对本发明进行详细说明。
本实施例中， 分量载波之间的 DRX配置是独立的， 接收 PDCCH信令的 分量载波可能是组内任何一个处于活动时间的分量载波， 对处于非活动时间 的分量载波， 可以通过其它的处于活动时间的分量载波向用户设备发送 PDCCH信令， 以进行下行或者上行业务数据的传输。
如图 2所示， 为网络侧的处理流程， 包括如下步骤：
步骤 100: eNB获得用户设备上运行的各业务的 DRX周期；
具体地， eNB可以根据用户设备发起的业务请求， 获知业务类型， 进而 获知业务的 DRX周期；
步骤 110: eNB为用户设备分配分量载波；
具体地， eNB可以根据网络负载、 用户设备的能力、 业务的需求等因素 分配分量载波， 该分配过程为现有技术， 此处不再详述；
步骤 120: eNB为用户设备的各分量载波设置 DRX配置参数；
DRX配置参数包括实际 DRX周期和 DRX起始偏移，还可以包括其它参 数， 因其它参数本发明没有涉及到， 可以沿用 LTE R8的相关标准， 所以此 处不再详述； 另外， DRX周期包括长周期和短周期， 本发明中的实际 DRX 周期指的是 DRX周期中的长周期；
一组分量载波承担若干业务的传输， eNB查找具有最小 DRX周期的业 务， 将该最小 DRX周期作为等效 DRX周期， 所有的分量载波都根据分量载 波数和等效 DRX周期来计算各分量载波的周期， 比如： 等效 DRX周期为 X, 分量载波数为 N, 那么各分量载波的 DRX周期为 x*N, 各分量载波的 DRX 起始偏移分别为 0, X, 2x, 3x, (N-l)x;
步骤 130: eNB将所述 DRX配置参数通过 RRC控制信令发送给用户设 备。 步骤 140: eNB 根据用户设备的 DRX 配置参数来为该用户设备发送 PDCCH信令， 即 eNB选择处于活动时间的分量载波发送 PDCCH信令。
所述 eNB通过在处于活动时间的分量载波上发送 PDCCH信令， 告知所 述用户设备传输业务数据的分量载波， 进而在所述传输业务数据的分量载波 上发送或接收业务数据；
具体的， 通过所述 PDCCH信令内载波标识符指示传输业务数据的分量 载波。 该传输业务数据的分量载波可以是该处于活动时间的分量载波， 也可 以是处于非活动时间的分量载波。
如图 3所示， 为用户侧的处理流程， 包括如下步骤：
步骤 200: 用户设备通过 RRC控制信令获得网络侧分配的 DRX配置参 数；
步骤 210: 用户设备根据接收到的 DRX配置参数进行相关配置； 其中， DRX配置参数除了本发明提到的实际 DRX周期和 DRX起始偏移， 还可包括 DRX非活动定时器和 MAC-争用解决定时器等配置参数， 用户设 备需要根据设置各种定时器， 因为本发明只涉及到实际 DRX周期和 DRX起 始偏移， 其它参数可沿用 LTE R8的相关标准， 所以此处不再详述， 另外， 用户设备还可以根据自身的需要，选择釆用现有技术的 DRX配置方式（使用 锚定载波和非锚定载波） ， 本实施例中， 用户设备使用 eNB配置的 DRX配 置参数进行配置；
步骤 220: 用户设备根据所述 DRX配置参数中的实际 DRX周期和 DRX 起始偏移监听处于活动时间的分量载波上发送的 PDCCH信令；
步骤 230: 当所述用户设备接收到 PDCCH信令后， 根据所述 PDCCH信 令获知传输业务数据的分量载波， 进而在所述传输业务数据的分量载波上接 收或发送业务数据。
具体地， 用户设备根据所述 PDCCH信令内载波标识符的指示， 获知哪 个分量载波为传输业务数据的分量载波， 该传输业务数据的分量载波可以是 该处于活动时间的分量载波， 也可以是处于非活动时间的分量载波， 这样， 用户设备虽然没有监听非活动时间的分量载波， 也可以从该分量载波接收或 发送数据。
即： 每个分量载波都有一个等效 DRX周期， 一个实际 DRX周期， 用户 设备在每个等效 DRX 周期上， 都可以通过监听活动时间的分量载波上的 PDCCH, 接收其它处于非活动时间的分量载波需要发送 PDCCH信令， 进而 在该 PDCCH信令指示的分量载波上进行相应的接收或发送业务数据的操作。
UE 无论是直接从处于活动时间的分量载波接收到调度本分量载波的 PDCCH 信令， 还是间接地通过其它分量载波接收到调度本分量载波的 PDCCH信令， 都按照目前 R8的 DRX规范对本分量载波（即该被调度的分 量载波）进行操作：比如如果是新传，那么将启动本分量载波的 DRX-Inactivity Timer以使本分量载波进入 /延长活动时间。
也即：当 UE间接接收到调度某个处于非活动时间分量载波的 PDCCH信 令时， 也按照目前 R8的 DRX规范对该分量载波进行操作。
举例如图 4a所示， 为配置的实际 DRX周期。 分量载波 CC1中业务数据 ( Data ) 由分量载波 CC2 中的位于第一个的持续监听时间 （Onduration ) 的 PDCCH激活。 分量载波 CC2的业务数据由分量载波 CC1的位于第一个持续 监听时间（ Onduration )的 PDCCH激活， 分量载波 CC3上的业务数据由分量 载波 CC2的位于第二个持续监听时间 （Onduration )上的 PDCCH激活。 图 4b为等效 DRX周期， 分量载波 CC1 CC3均具有相同的等效周期。
本发明实施例的多载波上的不连续接收的优化系统， 包括 eNB和用户设 备，
所述 eNB设置为，为分配给用户设备的分量载波设置 DRX配置参数时， 选择一等效 DRX周期， 并设置所述用户设备的每个分量载波的实际 DRX周 期为所述用户设备分量载波的个数乘以等效 DRX周期，每个分量载波的 DRX 起始偏移依次相差一个等效 DRX周期， 将所述 DRX配置参数告知所述用户 设备； 以及， 根据所述实际 DRX周期和 DRX起始偏移， 通过选择处于活动 时间的分量载波发送 PDCCH信令， 调度所述处于活动时间的分量载波， 或 者调度其它分量载波；
所述用户设备设置为， 根据接收到的 DRX配置参数中的实际 DRX周期 和 DRX起始偏移监听处于活动时间的分量载波上发送的 PDCCH信令。
优选地， 所述 eNB是设置为， 查找所述用户设备具有最小 DRX周期的 业务， 将所述最小 DRX周期作为等效 DRX周期。
优选地， 所述 eNB 是设置为， 通过在处于活动时间的分量载波上发送 PDCCH信令，告知所述用户设备传输业务数据的分量载波， 进而在所述传输 业务数据的分量载波上发送或接收业务数据； 所述用户设备还设置为， 接收 到所述 PDCCH信令后，根据所述 PDCCH信令获知传输业务数据的分量载波， 进而在所述传输业务数据的分量载波上接收或发送业务数据。
本发明还公开了一种演进基站 eNB, 上述 eNB设置为， 为分配给用户设 备的分量载波设置不连续接收 DRX配置参数时， 选择一等效 DRX周期， 并 设置上述用户设备的每个分量载波的实际 DRX周期为上述用户设备分量载 波的个数乘以等效 DRX周期， 每个分量载波的 DRX起始偏移依次相差一个 等效 DRX周期， 并将上述 DRX配置参数告知上述用户设备； 以及， 根据上 述实际 DRX周期和 DRX起始偏移， 通过选择处于活动时间的分量载波发送 物理下行控制信道 PDCCH信令， 调度上述处于活动时间或非活动时间的分 量载波。
优选地， 上述 eNB是设置为， 查找上述用户设备具有最小 DRX周期的 业务， 将上述最小 DRX周期作为等效 DRX周期。
优选地， 上述 eNB 是设置为， 通过在处于活动时间的分量载波上发送 PDCCH信令，告知上述用户设备传输业务数据的分量载波， 进而在上述传输 业务数据的分量载波上发送或接收业务数据。
该实施例中的 eNB与上述系统实施例中的 eNB功能相同， 在此不赘述。 本发明还公开了一种用户设备，上述用户设备设置为，接收演进基站 eNB 发送的不连续接收 DRX配置参数， 根据上述 DRX配置参数中的实际 DRX 周期和 DRX起始偏移监听处于活动时间的分量载波上发送的物理下行控制 信道 PDCCH信令； 当上述用户设备接收到上述 PDCCH信令后， 根据上述 PDCCH信令获知传输业务数据的分量载波，进而在上述传输业务数据的分量 载波上接收或发送业务数据。 该实施例中的用户设备与上述系统实施例中用 户设备的功能相同， 在此不赘述。
本领域普通技术人员可以理解上述方法中的全部或部分步骤可通过程序 来指令相关硬件完成， 上述程序可以存储于计算机可读存储介质中， 如只读 存储器、 磁盘或光盘等。 可选地， 上述实施例的全部或部分步骤也可以使用 一个或多个集成电路来实现。 相应地， 上述实施例中的各模块 /单元可以釆用 硬件的形式实现， 也可以釆用软件功能模块的形式实现。 本发明不限制于任 何特定形式的硬件和软件的结合。
当然， 本发明还可有其它多种实施例， 在不背离本发明精神及其实质的 但这些相应的改变和变形都应属于本发明所附的权利要求的保护范围。
工业实用性 本发明提供的多载波上的不连续接收的优化方法和演进基站， 由于各分 量载波都有持续监听时间， 因此用户设备可以周期性测量 PDCCH并上报 CQI/PMI/RI和 SRS信息，提高了基站的调度能力； 同时，增长了载波的 DRX 周期， 提高了电能节省能力。

Claims

权 利 要 求 书
1、 一种多载波上的不连续接收的优化方法， 应用于网络侧， 包括： 演进基站 eNB为分配给用户设备的分量载波设置不连续接收 DRX配置 参数时，选择一等效 DRX周期， 并设置所述用户设备的每个分量载波的实际 DRX周期为所述用户设备分量载波的个数乘以等效 DRX周期， 每个分量载 波的 DRX起始偏移依次相差一个等效 DRX周期， 并将所述 DRX配置参数 告知所述用户设备； 以及
所述 eNB根据所述实际 DRX周期和 DRX起始偏移，通过选择处于活动 时间的分量载波发送物理下行控制信道 PDCCH信令， 调度所述处于活动时 间或非活动时间的分量载波。
2、 如权利要求 1所述的方法， 其中，
所述 eNB选择一等效 DRX周期的步骤包括：
所述 eNB查找所述用户设备具有最小 DRX周期的业务，将所述最小 DRX 周期作为等效 DRX周期。
3、 如权利要求 1所述的方法， 其中，
在所述 eNB通过选择处于活动时间的分量载波发送 PDCCH信令的步骤 中，
所述 eNB通过所述 PDCCH信令告知所述用户设备传输业务数据的分量 载波， 进而在所述传输业务数据的分量载波上发送或接收业务数据。
4、 一种多载波上的不连续接收的优化方法， 应用于用户侧， 包括： 用户设备接收演进基站 eNB发送的不连续接收 DRX配置参数， 根据所 述 DRX配置参数中的实际 DRX周期和 DRX起始偏移监听处于活动时间的 分量载波上发送的物理下行控制信道 PDCCH信令； 以及
当所述用户设备接收到所述 PDCCH信令后，根据所述 PDCCH信令获知 传输业务数据的分量载波， 进而在所述传输业务数据的分量载波上接收或发 送业务数据。
5、 一种演进基站 eNB, 所述 eNB设置为， 为分配给用户设备的分量载 波设置不连续接收 DRX配置参数时， 选择一等效 DRX周期， 并设置所述用 户设备的每个分量载波的实际 DRX周期为所述用户设备分量载波的个数乘 以等效 DRX周期， 每个分量载波的 DRX起始偏移依次相差一个等效 DRX 周期，并将所述 DRX配置参数告知所述用户设备； 以及，根据所述实际 DRX 周期和 DRX起始偏移，通过选择处于活动时间的分量载波发送物理下行控制 信道 PDCCH信令， 调度所述处于活动时间或非活动时间的分量载波。
6、 如权利要求 5所述的演进基站， 所述 eNB是设置为， 查找所述用户 设备具有最小 DRX周期的业务， 将所述最小 DRX周期作为等效 DRX周期。
7、 如权利要求 5所述的演进基站， 所述 eNB是设置为， 通过在处于活 动时间的分量载波上发送 PDCCH信令， 告知所述用户设备传输业务数据的 分量载波， 进而在所述传输业务数据的分量载波上发送或接收业务数据。
8、 一种用户设备， 所述用户设备设置为， 接收演进基站 eNB发送的不 连续接收 DRX配置参数，根据所述 DRX配置参数中的实际 DRX周期和 DRX 起始偏移监听处于活动时间的分量载波上发送的物理下行控制信道 PDCCH 信令； 当所述用户设备接收到所述 PDCCH信令后，根据所述 PDCCH信令获 知传输业务数据的分量载波， 进而在所述传输业务数据的分量载波上接收或 发送业务数据。
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