WO2009155844A1 - 数据传输方法、装置、用户设备及通信系统 - Google Patents

数据传输方法、装置、用户设备及通信系统 Download PDF

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Publication number
WO2009155844A1
WO2009155844A1 PCT/CN2009/072372 CN2009072372W WO2009155844A1 WO 2009155844 A1 WO2009155844 A1 WO 2009155844A1 CN 2009072372 W CN2009072372 W CN 2009072372W WO 2009155844 A1 WO2009155844 A1 WO 2009155844A1
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scch
channel format
channel
cell
detected
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PCT/CN2009/072372
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English (en)
French (fr)
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张劲林
郭房富
于江
叶环球
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华为技术有限公司
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Publication of WO2009155844A1 publication Critical patent/WO2009155844A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/16Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18Negotiating wireless communication parameters

Definitions

  • the present invention relates to the field of communication technologies, and more particularly to a data transmission method, apparatus, user equipment, and communication system. Background technique
  • HSPA+ is added to HSPA+ in R7 version of 3GPP (3rd Generation Partnership Project), HSPA+ is further evolution and enhancement of HSPA (High-speed Packet Access). It involves receiving HSDPA (High Speed Downlink Package Access) channels in the CELL-FACH, CELL_PCH, and URA-PCH states.
  • HSDPA High Speed Downlink Package Access
  • the CELL_FACH state and the CELL_PCH state need to be configured in the system message 5/5bit to receive the related information of the HS-DSCH (High Speed Downlink Shared Channel), and the related information includes Priority queue, channel code, HARQ (Hybrid Automatic Repeat Request) process parameters and H-RNTI (Terminal Identification).
  • the UE User Equipment
  • the CELL-FACH enhancement itself it establishes relevant signaling and service connection in the CELL-FACH enhanced state.
  • the CELL-FACH enhanced state information is configured by the RNC (Radio Network Controller) when the cell is established, and the RNC is not required for the service establishment or deletion in the cell. Participate in any signaling interaction.
  • RNC Radio Network Controller
  • the RNC needs to send a radio link setup message to the Node B, which is used to instruct the Node B to establish a dedicated channel and reconfigure the MAC ( Media access control) entity (MAC-hs or MAC-ehs), and also needs to send RB (Radio Bearer) reconfiguration to the UE.
  • MAC Media access control
  • MAC-ehs Media access control entity
  • RB Radio Bearer
  • the embodiments of the present invention provide a data transmission method, device, user equipment, and communication system, so as to ensure that the network side and the UE are consistently configured during the state transition process, thereby ensuring normal data transmission between the two parties.
  • the HS-SCCH channel is parsed according to the channel format of the detected HS-SCCH and the data is received.
  • a data transmission apparatus for performing data transmission during state transition, and the apparatus includes:
  • a receiving unit configured to receive a radio bearer RB reconfiguration message
  • a detecting unit configured to receive data of a high speed shared control channel HS-SCCH and detect a channel format of the HS-SCCH;
  • a first processing unit configured to parse the HS-SCCH according to the detected channel format of the HS-SCCH when the channel format of the HS-SCCH detected by the detecting unit is inconsistent with the channel format of the currently configured HS-SCCH Channel and receive data.
  • a user equipment provided by an embodiment of the present invention, where the user equipment includes the data transmission device.
  • a communication system provided by the embodiment of the present invention includes: a network side device and at least one user equipment, when the state transition occurs, the at least one user equipment is configured to receive the network side device to send High-speed sharing control channel HS-SCCH data and detecting the channel format of the HS-SCCH, when the channel format of the detected HS-SCCH is inconsistent with the channel format of the currently configured HS-SCCH, according to the detection
  • the channel format of the incoming HS-SCCH resolves the HS-SCCH channel and receives data.
  • the UE when the state transition occurs, the UE detects the data of the HS-SCCH and detects the channel format of the HS-SCCH.
  • the channel format of the obtained HS-SCCH is inconsistent with the channel format of the currently configured HS-SCCH, the HS-SCCH channel is parsed according to the detected channel format of the HS-SCCH and the data is received. Therefore, the problem that the communication failure between the Node B and the UE is not consistent before the UE completes the downlink synchronization, and the configuration of the two parties is consistent, thereby ensuring normal data transmission.
  • FIG. 1 is a flowchart of a data transmission method according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a data transmission method according to an embodiment of the present invention.
  • FIG. 3 is a flowchart of a data transmission method according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a data transmission apparatus according to an embodiment of the present invention
  • FIG. 5 is a schematic structural diagram of a data transmission apparatus according to an embodiment of the present invention
  • An embodiment of the present invention provides a data transmission method during state transition. As shown in FIG. 1, the method may include:
  • Step S101 Receive a radio bearer RB reconfiguration message.
  • an RB reconfiguration message is received from the network side, where the RB reconfiguration message is used to instruct the UE to perform RB reconfiguration, and initiate a downlink synchronization process.
  • Step S102 Receive data of the HS-SCCH channel and detect a channel format of the HS-SCCH.
  • This step can be referred to as blind detection for short, that is, the channel format sent by the network side is parsed by various HS-SCCH channel formats. If the analysis is successful, the HS-SCCH used by the network side can be known. Channel format.
  • the HS-SCCH three channel formats are defined in the 3GPP R7 protocol: HS-SCCH Typel, HS-SCCH Type2, HS-SCCH Type3.
  • Step S103 When the detected channel format of the HS-SCCH is different from the channel format of the currently configured HS-SCCH, the channel format of the detected HS-SCCH is used to parse and receive data.
  • the channel format of the HS-SCCH detected in S102 is inconsistent with the channel format of the currently configured HS-SCCH, it means that the UE cannot correctly receive the HS-PDSCH channel on the HS-SCCH channel that is transmitted by the network side. Data, therefore, it is necessary to parse and receive data using the channel format of the HS-SCCH having the same channel format as the detected HS-SCCH.
  • the channel format of the HS-SCCH detected in S102 is consistent with the channel format of the currently configured HS-SCCH
  • the channel format of the currently configured HS-SCCH is used to parse and receive data, and the HS-SCCH can continue to be performed. Blind detection.
  • the UE detects the channel format of the HS-SCCH by receiving the data of the HS-SCCH, and when the channel format of the detected HS-SCCH is inconsistent with the channel format of the currently configured HS-SCCH, The channel format of the detected HS-SCCH parses and receives data. Therefore, the problem that the configuration of the Node B and the UE is inconsistent and the communication failure occurs before the UE completes the downlink synchronization, and the configuration of both parties is ensured, thereby ensuring normal data transmission.
  • Stateful migration of user equipment can include: Migrating from CELL-FACH enhanced state to
  • the CELL-DCH state migrates from the CELL-DCH state to the CELL-FACH enhanced state.
  • the CELL-FACH enhanced state transition to the CELL-DCH state is taken as an example.
  • the embodiment of the present invention further provides a state transition method. As shown in FIG. 2, before the state transition is completed, the method may include: Step S201: Receive an RB reconfiguration message sent by the RNC.
  • the UE migrates from the CELL-FACH enhanced state to the CELL-DCH state, the UE initiates downlink synchronization after receiving the RB reconfiguration message from the RNC.
  • Step S202 Receive data of the HS-SCCH and detect a channel format of the HS-SCCH.
  • the Node B sends the indication information by using the HS-SCCH Type1.
  • the Node B needs to refer to the current mode of the UE (for the MIMO mode or the HS-SCCH less operation mode). ), to decide which channel format to use (HS-SCCH Typel, HS-SCCH Type2 or HS-SCCH Type3) to transmit indication information.
  • the Node B sends the HS-PDSCH data in a new configuration.
  • the HS-SCCH Type 3 is used to transmit the indication information.
  • the RNC sends a radio link setup message to the Node B during the transition from the CELL-FACH enhanced state to the CELL_DCH state, and sends an RB reconfiguration message to the UE, and the Node B receives the radio link.
  • the HS-PDSCH is sent by the new configuration.
  • the UE After receiving the RB reconfiguration message, the UE starts the downlink synchronization. After the downlink synchronization is completed, the new configuration is used to receive the downlink data.
  • the Node B may have adopted the new configuration, and may not have adopted the new configuration. That is to say, the HS-SCCH format adopted by the Node B may be HS-SCCH Type3 or HS-SCCH Typel. Therefore, the received HS-SCCH channel format needs to be detected.
  • Step S203 Determine whether the channel format of the currently configured HS-SCCH is consistent with the detected HS-SCCH channel format used by the network side, and if yes, go to S204; otherwise, go to S205.
  • Step S204 Parsing and receiving data in the channel format of the currently configured HS-SCCH, and returning to S203.
  • Step S205 Parsing and receiving data by using the channel format of the detected HS-SCCH.
  • the channel format of the HS-SCCH to which the indication information is sent by the network side may be HS-SCCH Type 3 or HS-SCCH Type 1, if the channel format of the currently configured HS-SCCH is determined and detected in step S203.
  • the channel format of the HS-SCCH is the same, that is, the HS-SCCH Type1, indicating that the network side has not updated the configuration of the delivery indication information, and the HS-SCCH Typel can be used to parse and receive the information on the HS-SCCH channel, and continue.
  • the channel format of the HS-SCCH adopted by the network side is detected.
  • the step S203 determines the currently configured HS-SCCH
  • the channel format is inconsistent with the detected channel format of the HS-SCCH.
  • the channel format of the currently configured HS-SCCH is HS-SCCH Typel
  • the channel format of the detected HS-SCCH is The HS-SCCH Type3 indicates that the network side has updated the configuration of the delivery indication information, and the HS-SCCH Type 3 can be used to parse and receive the information on the HS-SCCH channel.
  • the network side sends the indication information.
  • the channel format of the HS-SCCH may be HS-SCCH Type 2 or HS-SCCH Type 1. If the channel format of the currently configured HS-SCCH is consistent with the channel format of the detected HS-SCCH, it is HS. -SCCH Typel, indicating that the network side has not updated the configuration of the delivery indication information, the HS-SCCH Typel can be used to parse and receive the information on the HS-SCCH channel, and continue to detect the channel format of the HS-SCCH adopted by the network side.
  • step S203 If it is determined in step S203 that the channel format of the currently configured HS-SCCH is different from the channel format of the detected HS-SCCH, one possible case is: the channel format of the currently configured HS-SCCH is HS-SCCH Typel, and The channel format of the detected HS-SCCH is HS-SCCH Type2, indicating that the network side has updated the configuration of the delivery indication information, and then the HS-SCCH Type 2 can be used to parse and receive the information on the HS-SCCH channel.
  • the high speed downlink shared physical channel HS-PDSCH channel data is received based on the information of the analyzed HS-SCCH channel.
  • the UE when the UE is in non-MIMO mode or non-HS-SCCH less operation mode, it is HS-SCCH Typel because it is the same as the HS-SCCH channel format in the CELL-FACH state, so it may not need to follow
  • the above method performs blind detection.
  • the channel format adopted by the Node B is HS-SCCH Type 1 in the CELL_FACH enhanced state, and in the CELL_DCH state, If the current mode of the UE is non-MIMO or non-HS-CHCH less operation, the channel format adopted by the Node B is also HS-SCCH Type 1, which means that when the UE moves from the CELL_DCH state to the CELL-FACH enhanced state.
  • the UE may receive the data in the configuration corresponding to the HS-SCCH Type 1 during the state transition. Therefore, if it is known in advance that the current mode of the UE is non-MIMO or non-HS-SCCH less operation, the process of detecting the channel format of the HS-SCCH may be omitted during the state transition.
  • the data transmission method in the state transition provided by the foregoing embodiment blindly detects the channel format of the HS-SCCH while starting the downlink synchronization process, the channel format of the currently configured HS-SCCH, and the channel format of the HS-SCCH adopted by the network side.
  • the channel format of the HS-SCCH on the network side is used to parse and receive data. It is avoided that before the downlink synchronization is completed, the time when the Node B and the UE adopt the new configuration to send and receive data are inconsistent and the communication cannot be performed, and the UE cannot correctly receive the data, thereby ensuring the normal operation of the data transmission.
  • the embodiment of the present invention further provides a data transmission apparatus for migrating from a CELL-FACH enhanced state to a CELL_DCH state, or from a CELL-DCH state to a CELL-FACH enhanced state. During the process, ensure that the current configuration is consistent with the configuration of Node B.
  • FIG. 3 is a schematic structural diagram of a data transmission apparatus according to an embodiment of the present invention.
  • the data transmission device may include a receiving unit 31, a detecting unit 32, and a first processing unit 33. among them:
  • the receiving unit 31 is configured to receive a radio bearer RB reconfiguration message when the UE performs state transition, and the RB reconfiguration message may be sent by the RNC.
  • the detecting unit 32 is configured to receive data of the HS-SCCH and detect a channel format of the HS-SCCH.
  • the first processing unit 33 is configured to parse the HS-SCCH channel according to the detected channel format of the HS-SCCH when the channel format of the HS-SCCH detected by the detecting unit 32 is inconsistent with the channel format of the currently configured HS-SCCH. Receive data.
  • FIG. 4 is a schematic structural diagram of a data transmission apparatus according to an embodiment of the present invention.
  • the data transmission device may include: a receiving unit 41, a detecting unit 42, a first processing unit 43, and a second processing unit 44.
  • the functions of the unit 31, the detecting unit 32 and the first processing unit 33 are substantially the same, and details are not described herein again.
  • the second processing unit 44 is configured to acquire the detection result of the detecting unit 42.
  • the channel format of the HS-SCCH detected by the detecting unit 42 is consistent with the channel format of the currently configured HS-SCCH, according to the channel of the currently configured HS-SCCH.
  • the format parses the HS-SCCH channel and receives the data, and notifies the detecting unit 42 to continue detecting the channel format of the received HS-SCCH.
  • the state transition described in all of the above embodiments may include migrating from the CELL-FACH enhanced state to the CELL-DCH state, or from the CELL-DCH state to the CELL-FACH enhanced state.
  • the UE may configure the MIMO mode, and may also configure the HS-SCCH less operation mode. If the UE is configured with the MIMO mode, when the UE completes the downlink synchronization, the Node B may adopt the update configuration or adopt the configuration in the original state, that is, Said, the HS-SCCH format adopted by Node B may be HS-SCCH Typel or HS-SCCH Type3.
  • the current mode of the UE may also be a non-MIMO mode or a non-HS-SCCH less operation mode, in which case, from the CELL-DCH state to the CELL-FACH enhanced state migration process or from the CELL-FACH enhanced state to During the migration of CELL-DCH state, the channel format adopted by Node B is HS-SCCH Typel, that is, its configuration does not change, and the configuration of the UE remains unchanged.
  • the data transmission apparatus provided by another embodiment of the present invention as shown in FIG. 5 may include: a receiving unit 51, a detecting unit 52, a first processing unit 53, a second processing unit 54, and a mode acquiring unit 55.
  • the receiving unit 51, the detecting unit 52, the first processing unit 53, and the second processing unit 54 are substantially the same as the receiving unit 41, the detecting unit 42, the first processing unit 43, and the second processing unit 44 in Fig. 4 .
  • the mode obtaining unit 55 acquires the current mode of the UE, when the current mode of the UE is non-MIMO or non-HS-SCCH less
  • the indication detecting unit 52 and the first processing unit 53 stop operating, and instruct the second processing unit 54 to parse the HS-SCCH channel and receive data in accordance with the channel format of the currently configured HS-SCCH.
  • the embodiment of the present invention further discloses a user equipment, and the user equipment may include the above data transmission apparatus.
  • the specific composition and working process of the state transition device have been described in detail in the foregoing related embodiments, and will not be further described herein.
  • the embodiment of the present invention further provides a communication system. Please refer to FIG. 6, which is a schematic structural diagram of the communication system.
  • the communication system includes a network side device and at least one UE 61, and the network side device may include an ode
  • the RNC 63 transmits a radio link setup message to the Node B 62 and transmits an RB reconfiguration message to the UE 61.
  • the Node B62 After receiving the radio link setup message (or radio link revocation message), the Node B62 transmits the data using the new configuration.
  • the UE 61 When the UE 61 receives the RB reconfiguration message, the UE 61 blindly detects the channel format of the HS-SCCH, and determines whether the channel format of the detected HS-SCCH is consistent with the channel format of the currently configured HS-SCCH. Then, the channel format of the detected HS-SCCH is used to parse and receive data. If they are consistent, the channel format of the currently configured HS-SCCH is used to parse and receive data, and the channel format of the HS-SCCH is continuously detected blindly.
  • the method, the device, and the system provided by the embodiments of the present invention, by blindly detecting the channel format of the HS-SCCH, when the channel format of the currently configured HS-SCCH is different from the channel format of the HS-SCCH used by the network side.
  • the data is parsed and received using the channel format of the HS-SCCH on the network side. It avoids the inconsistency between the time when the Node B and the UE use the new configuration to send and receive data before the downlink synchronization is completed, and the UE cannot receive the data correctly, and the data is guaranteed.
  • the transmission proceeds normally.
  • information, messages, and signals can be represented using any of a number of different processes and techniques.
  • the messages and information mentioned in the above description may be expressed as voltage, current, electromagnetic wave, magnetic field or magnetic particle, light field or any combination of the above.
  • RAM random access memory
  • ROM read only memory
  • electrically programmable ROM electrically erasable programmable ROM
  • registers hard disk, removable disk, CD-ROM, or any other form of storage known in the art. In the medium.

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Description

数据传输方法、 装置、 用户设备及通信系统
本申请要求于 2008 年 6 月 23 日提交中国专利局、 申请号为 200810129113.6、 发明名称为"数据传输方法、 装置、 用户设备及通信系统 "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
本发明涉及通信技术领域, 更具体地说, 涉及数据传输方法、 装置、 用户 设备及通信系统。 背景技术
CELL_FACH增强技术是在 3GPP ( 3rd Generation partnership project, 第三 代合作项目 ) R7版本中 HSPA+新增力口的, HSPA+为 HSPA ( High-speed Packet Access , 高速分组接入) 的进一步演进和增强, 主要涉及在 CELL— FACH、 CELL_PCH和 URA— PCH状态下支持 HSDPA ( High Speed Downlink Package Access, 高速下行链路分组接入)信道的接收。
在小区建立的时候,如果系统支持 CELL_FACH增强,则在系统消息 5/5bit 中就需要配置 CELL_FACH状态和 CELL_PCH状态, 以接收 HS-DSCH (高速 下行链路共享信道)的相关信息,该相关信息包括优先级队列、信道码、 HARQ ( Hybrid Automatic Repeat Request, 混合自动重复请求 )进程参数和 H-RNTI (终端标识)。 对于 UE (用户设备)来说, 其在读取上述相关信息之后, 如果 本身支持 CELL— FACH增强, 就在 CELL— FACH增强状态下建立相关的信令 和业务连接。 对于 Node B (基站) 来说, 其需要在小区建立的时候, 由 RNC ( Radio Network Controller , 无线网络控制器) 配置 CELL— FACH增强状态的 相关信息, 而小区中业务建立或者删除, 则无须 RNC参与进行任何信令的交 互。
当 UE处于 CELL— FACH、 CELL— PCH和 URA_PCH状态下, 触发状态迁 移到 CELL— DCH状态时, RNC需要给 Node B发送无线链路建立消息, 用于 指示 Node B建立专用信道和重配置 MAC (媒体接入控制)实体( MAC-hs或者 MAC-ehs ), 同时, 还需要给 UE发送 RB ( Radio Bearer, 无线承载) 重配置 消息。 Node B建立专用信道后, 当 UE和 Node B完成上下行同步, UE迁移 到 CELL— DCH状态。
然而, 由于 Node B和 UE之间采用新配置的时间很有可能会不一致 , 一 般情况下, 两者会存在一段延迟, 该延迟从几十毫秒到几百毫秒不等。 在这段 延迟时间内,可能会发生 Node B和 UE之间由于配置不适配而导致通信中断、 数据丟失的情况。 发明内容
本发明实施例提供一种数据传输方法、 装置、 用户设备及通信系统, 以保 证网络侧和 UE在状态迁移过程中配置一致, 进而保证双方数据传输的正常进 行。
本发明实施例提供的一种数据传输方法, 包括:
当发生状态迁移时, 接收高速共享控制信道 HS-SCCH的数据并检测所述 HS-SCCH的信道格式;
当所述检测到的 HS-SCCH的信道格式与当前配置的 HS-SCCH的信道格 式不一致时, 按照所述检测到的 HS-SCCH的信道格式解析 HS-SCCH信道并 接收数据。
本发明实施例提供的一种数据传输装置, 用于在状态迁移时进行数据传 输, 所述装置包括:
接收单元, 用于接收无线承载 RB重配置消息;
检测单元, 用于接收高速共享控制信道 HS-SCCH 的数据并检测所述 HS-SCCH的信道格式;
第一处理单元, 用于在所述检测单元检测到的 HS-SCCH的信道格式与当 前配置的 HS-SCCH的信道格式不一致时, 按照所述检测到的 HS-SCCH的信 道格式解析 HS-SCCH信道并接收数据。
本发明实施例提供的一种用户设备, 所述用户设备包括所述数据传输装 置。
本发明实施例提供的一种通信系统, 包括: 网络侧设备和至少一个用户设 备, 当发生状态迁移时, 所述至少一个用户设备用于接收所述网络侧设备发送 的高速共享控制信道 HS-SCCH的数据并检测所述 HS-SCCH的信道格式, 当 所述检测到的 HS-SCCH的信道格式与当前配置的 HS-SCCH的信道格式不一 致时, 按照所述检测到的 HS-SCCH的信道格式解析 HS-SCCH信道并接收数 据。
从上述的技术方案可以看出, 与现有技术相比, 本发明实施例中, 当发生 状态迁移时, UE通过接收 HS-SCCH的数据及对该 HS-SCCH的信道格式进行 检测, 当检测到的 HS-SCCH的信道格式与当前配置的 HS-SCCH的信道格式 不一致时, 按照所述检测到的 HS-SCCH的信道格式解析 HS-SCCH信道并接 收数据。 从而, 可以避免了在 UE完成下行同步前, Node B和 UE双方配置不 一致而导致通信失败的问题的发生,保证双方的配置一致, 进而保证了数据传 输的正常进行。 附图说明
图 1为本发明一实施例提供的一种数据传输方法的流程图;
图 2为本发明一实施例提供的一种数据传输方法的流程图;
图 3为本发明一实施例提供的一种数据传输方法的流程图;
图 4为本发明一实施例提供的一种数据传输装置的结构示意图; 图 5为本发明一实施例提供的一种数据传输装置的结构示意图; 图 6为本发明一实施例提供的一种通信系统的结构示意图。 具体实施方式
本发明一实施例提供了一种状态迁移时的数据传输方法, 如图 1所示, 该 方法可以包括:
步骤 S101、 接收无线承载 RB重配置消息;
当 UE状态发生迁移时, 会从网络侧接收到 RB重配置消息, 该 RB重配 置消息用于指示 UE进行 RB重配置, 并启动下行同步过程。
步骤 S102、 接收 HS-SCCH信道的数据并检测 HS-SCCH的信道格式。 该步骤可以简称为盲检测, 也就是说, 釆用各种 HS-SCCH的信道格式来 解析网络侧发送过来的信息,如果解析成功,则可获知网络侧釆用的 HS-SCCH 的信道格式。 在 3GPP R7 协议定义了 HS-SCCH 三种信道格式: HS-SCCH Typel、 HS-SCCH Type2、 HS-SCCH Type3。
步骤 S103、 当检测到的 HS-SCCH的信道格式与当前配置的 HS-SCCH的 信道格式不一致时, 采用检测到的 HS-SCCH的信道格式解析和接收数据。
当 S102中检测到的 HS-SCCH的信道格式与当前配置的 HS-SCCH的信道 格式不一致时, 也就说明此时 UE不能正确接收网络侧发送的伴随 HS-SCCH 信道的 HS-PDSCH信道上的数据, 因此, 需要采用与检测到的 HS-SCCH的信 道格式相同的 HS-SCCH的信道格式解析并接收数据。
此时, 当采用检测到的 HS-SCCH的信道格式接收数据后, 在状态迁移完 成前, 可以不需要再对 HS-SCCH的信道格式进行检测。
此外, 当 S102中检测到的 HS-SCCH的信道格式与当前配置的 HS-SCCH 的信道格式一致时, 采用当前配置的 HS-SCCH的信道格式解析并接收数据, 并可以继续对 HS-SCCH进行盲检测。
当发生状态迁移时, UE通过接收 HS-SCCH的数据及对该 HS-SCCH的信 道格式进行检测, 当检测到的 HS-SCCH的信道格式与当前配置的 HS-SCCH 的信道格式不一致时, 按照所述检测到的 HS-SCCH的信道格式解析并接收数 据。从而可以避免了在 UE完成下行同步前, Node B和 UE双方配置不一致而 导致通信失败的问题的发生, 而保证了双方的配置一致, 进而保证了数据传输 的正常进行。
用户设备的状态迁移可以包括: 从 CELL-FACH 增强状态迁移到
CELL-DCH状态, 或者, 从 CELL-DCH状态迁移到 CELL-FACH增强状态。
在 Cell-DCH状态下, 对于 UE不同的工作模式, HS-SCCH的信道格式也 有所不同。 例如, 当 UE处于非 MIMO(Multiple-Input Multiple-Out-put)模式或 非 HS-SCCH less operation模式时,网络侧采用的信道格式为 HS-SCCH Typel ; 当 UE处于 HS-SCCH less operation模式时, 网络侧采用的信道格式为 HS- SCCH Type2; 当 UE处于 MIMO模式时, 网络侧采用的信道格式为 HS-SCCH Type3。
以 CELL— FACH增强状态迁移到 CELL— DCH状态为例, 本发明实施例还 提供了一种状态迁移方法, 如图 2所示, 在状态迁移完成前, 可以包括: 步骤 S201、 接收 RNC发送的 RB重配置消息。
当 UE从 CELL— FACH增强状态迁移到 CELL— DCH状态时, UE接收到 RNC下发 RB重配置消息后, 启动下行同步。
步骤 S202, 接收 HS-SCCH的数据并检测所述 HS-SCCH的信道格式。 当 UE在 CELL_FACH增强状态时, Node B采用 HS-SCCH Typel发送指 示信息, 当该 UE迁移到 CELL_DCH状态时, 则 Node B需要才艮据 UE的当前 模式(为 MIMO模式或 HS-SCCH less operation模式 ), 来决定采用哪种信道 格式来( HS-SCCH Typel、 HS-SCCH Type2或者 HS-SCCH Type3 )传送指示 信息。 Node B在上行同步后, 采用新的配置下发 HS-PDSCH数据, 例如, 如 果 UE配置了 MIMO模式(也即 UE的当前模式为 MIMO模式 ), 则采用 HS- SCCH Type3来传送指示信息,指示伴随的 HS-PDSCH信道的格式和调制方式。
假设 UE 模式为 MIMO , 则 UE 在从 CELL— FACH 增强状态迁移到 CELL_DCH状态过程中, RNC向 Node B发送无线链路建立消息, 并向 UE 发送 RB重配置消息, Node B接收到该无线链路建立消息后, 釆用新配置下 发 HS-PDSCH, UE接收到 RB重配置消息后, 启动下行同步, 完成下行同步 后采用新的配置接收下行数据。 Node B可能已经采用新配置, 也有可能还没 有采用新配置,也就是说 Node B采用的 HS-SCCH格式可能是 HS-SCCH Type3 或者 HS-SCCH Typel。 因此需要对接收的 HS-SCCH信道格式进行检测。
步骤 S203、判断当前配置的 HS-SCCH的信道格式与检测到的网络侧釆用 的 HS-SCCH信道格式是否一致, 若是, 进入 S204; 否则, 进入 S205。
步骤 S204、 采用当前配置的 HS-SCCH的信道格式解析并接收数据,返回 S203。
步骤 S205、 采用检测到的 HS-SCCH的信道格式解析并接收数据。
假设 UE模式为 MIMO, 则网络侧下发指示信息的 HS-SCCH的信道格式 可能是 HS-SCCH Type3或者 HS-SCCH Typel , 如果步骤 S203判断出当前配 置的 HS-SCCH的信道格式与所检测到的 HS-SCCH的信道格式一致, 也即均 为 HS-SCCH Typel , 说明网络侧尚未更新下发指示信息的配置, 则可采用 HS-SCCH Typel解析并接收 HS-SCCH信道上的信息,并继续对网络侧采用的 HS-SCCH的信道格式进行检测。 如果步骤 S203判断出当前配置的 HS-SCCH 的信道格式与所检测到的 HS-SCCH的信道格式不一致, 一种可能的情况是: 当前配置的 HS-SCCH的信道格式为 HS-SCCH Typel ,而所检测到的 HS-SCCH 的信道格式为 HS-SCCH Type3, 说明网络侧已经更新下发指示信息的配置, 则可采用 HS-SCCH Type3解析并接收 HS-SCCH信道上的信息。
假设 UE 的模式为 HS-SCCH less operation, 则网络侧下发指示信息的
HS-SCCH的信道格式可能是 HS-SCCH Type2或者 HS-SCCH Typel ,如果步驟 S203判断出当前配置的 HS-SCCH的信道格式与所检测到的 HS-SCCH的信道 格式一致, 也即均为 HS-SCCH Typel, 说明网络侧尚未更新下发指示信息的 配置, 则可采用 HS-SCCH Typel解析并接收 HS-SCCH信道上的信息, 并继 续对网络侧采用的 HS-SCCH的信道格式进行检测。 如果步骤 S203判断出当 前配置的 HS-SCCH的信道格式与所检测到的 HS-SCCH的信道格式不一致, 一种可能的情况是: 当前配置的 HS-SCCH的信道格式为 HS-SCCH Typel , 而 所检测到的 HS-SCCH的信道格式为 HS-SCCH Type2,说明网络侧已经更新下 发指示信息的配置, 则可釆用 HS-SCCH Type2解析并接收 HS-SCCH信道上 的信息。
需要说明的是, 当按照 S205采用检测到的 HS-SCCH的信道格式解析并 接收数据后, 可以不需要再对 HS-SCCH的信道格式进行检测。 此处, 根据解 析到的 HS-SCCH信道的信息接收高速下行共享物理信道 HS-PDSCH信道数 据。
在 CELL-DCH状态下, 当 UE处于非 MIMO模式或非 HS-SCCH less operation模式时, 由于和 CELL-FACH状态下的 HS-SCCH信道格式一样, 都 是 HS-SCCH Typel , 因此可以不需要按照上述方法进行盲检测。
从 CELL— DCH状态迁移到 CELL_FACH增强状态的过程同样可以遵循类 似于上述实施例的流程, 本实施例中就不再详细描述。
需要说明的是, 当 UE从 CELL_DCH状态迁移到 CELL— FACH增强状态 的过程中, 因为在 CELL_FACH 增强状态下, Node B 采用的信道格式为 HS-SCCH Type 1 ,而在 CELL_DCH状态下,所以如杲 UE当前模式为非 MIMO 或者非 HS-SCCH less operation,则 Node B采用的信道格式也同样为 HS-SCCH Type 1 , 这意味着, 当 UE从 CELL_DCH状态迁移到 CELL— FACH增强状态 时, 如杲 UE在 CELL_DCH时的当前模式为非 MIMO或者非 HS-SCCH less operation, 则 UE可以在此状态迁移过程中, 一直采用与 HS-SCCH Type 1相 应的配置接收数据。 所以, 如果事先获知所述 UE当前模式为非 MIMO或者 非 HS-SCCH less operation, 则在状态迁移过程中, 可以省略对 HS-SCCH的信 道格式的检测过程。
上述实施例提供的状态迁移时的数据传输方法在启动下行同步过程的同 时, 盲检测 HS-SCCH的信道格式, 在当前配置的 HS-SCCH的信道格式与网 络侧采用的 HS-SCCH的信道格式不一致时, 釆用与网络侧的 HS-SCCH的信 道格式解析并接收数据。 避免了在下行同步完成之前, Node B和 UE采用新 配置发送和接收数据的时间不一致而导致无法通信, UE无法正确接收数据的 情况的出现, 保证了数据传输的正常进行。
针对上述部分或者全部方法实施例,本发明实施例同时提供了一种数据传 输装置, 用于在 UE从 CELL— FACH增强状态迁移到 CELL_DCH状态, 或者 从 CELL— DCH状态迁移到 CELL— FACH增强状态的过程中, 保证当前配置与 Node B的配置一致。
请参考图 3, 为本发明一实施例提供的一种数据传输装置的结构示意图。 该数据传输装置可以包括:接收单元 31、检测单元 32和第一处理单元 33。 其中:
接收单元 31用于在 UE发生状态迁移时接收无线承载 RB重配置消息, 该 RB重配置消息可以是由 RNC发送的。
检测单元 32用于接收 HS-SCCH的数据并检测 HS-SCCH的信道格式。 第一处理单元 33 , 用于在检测单元 32检测到的 HS-SCCH的信道格式与 当前配置的 HS-SCCH的信道格式不一致时, 按照检测到的 HS-SCCH的信道 格式解析 HS-SCCH信道并接收数据。
图 4为本发明一实施例提供的一种数据传输装置的结构示意图。
数据传输装置可以包括: 接收单元 41、 检测单元 42、 第一处理单元 43 和第二处理单元 44。
其中:
接收单元 41、检测单元 42、 第一处理单元 43与图 3所示实施例中的接收 单元 31、 检测单元 32和第一处理单元 33的功能基本相同, 在此不再赘述。 第二处理单元 44用于获取检测单元 42的检测结果, 当检测单元 42检测 到的 HS-SCCH的信道格式与当前配置的 HS-SCCH的信道格式一致时, 按照 当前配置的 HS-SCCH的信道格式解析 HS-SCCH信道并接收数据, 并通知检 测单元 42继续检测接收到的 HS-SCCH的信道格式。
上述所有实施例中所述的状态迁移可以包括:从 CELL-FACH增强状态迁 移到 CELL-DCH状态, 或者, 从 CELL-DCH状态迁移到 CELL-FACH增强状 态。
UE可能配置 MIMO模式, 也可能配置 HS-SCCH less operation模式, 如 果 UE配置了 MIMO模式, 则当 UE在完成下行同步的过程中, Node B可能 采用更新配置或者采用原状态下的配置, 也就是说, Node B采用的 HS-SCCH 格式可能是 HS-SCCH Typel或者 HS-SCCH Type3。
当然, UE的当前模式也可以为非 MIMO模式或非 HS-SCCH less operation 模式, 在这种情况下, 从 CELL— DCH状态到 CELL— FACH增强状态的迁移过 程中或者从 CELL— FACH增强状态到 CELL— DCH状态的迁移过程中, Node B 采用的信道格式都为 HS-SCCH Typel , 也就是说, 其配置不发生改变, UE的 配置也保持不变。 所以在另外的实施例中, 如杲事先获知所述 UE的当前模式 为非 MIMO或者非 HS-SCCH less operation,并且其状态迁移为从 CELL_DCH 状态迁移到 CELL_FACH 增强状态, 则在状态迁移过程中, 可以省略对 HS-SCCH的信道格式的检测过程, 也即省略所述检测单元 32, 或者不需所述 检测单元 32进行检测。 于是, 如图 5所示的本发明另一个实施例提供的数据 传输装置可以包括: 接收单元 51、 检测单元 52、 第一处理单元 53、 第二处理 单元 54和模式获取单元 55。
其中:
接收单元 51、 检测单元 52、 第一处理单元 53和第二处理单元 54与图 4 中的接收单元 41、 检测单元 42、 第一处理单元 43和第二处理单元 44功能基 本相同。
在 UE从 CELL_DCH状态迁移到 CELL_FACH增强状态时, 模式获取单 元 55获取 UE当前模式, 当该 UE当前模式为非 MIMO或者非 HS-SCCH less operation时, 指示检测单元 52和第一处理单元 53停止工作, 并指示第二处理 单元 54按照当前配置的 HS-SCCH的信道格式解析 HS-SCCH信道并接收数 据。
上述数据传输装置具体的工作过程可参照方法实施例部分的内容,此处不 再赘述。 针对上述方法和装置部分的实施例, 本发明实施例还公开了一种用户设 备, 该用户设备可以包括上述数据传输装置。 该状态迁移装置的具体组成和工 作过程在前述相关实施例已经详细描述过, 在此不再赞述。 另外, 本发明实施例还提供一种通信系统, 请参考图 6, 为该通信系统的 结构示意图。
该通信系统包括网络侧设备和至少一个 UE61 ,网络侧设备可以包括 ode
B62。
在 UE61从 CELL_FACH增强状态迁移到 CELL_DCH状态过程中, 或者 从 CELL— DCH状态迁移到 CELL_FACH增强状态过程中, RNC63向 Node B62 发送无线链路建立消息, 并向 UE61发送 RB重配置消息。
Node B62在接收到该无线链路建立消息 (或无线链路撤销消息)后, 采 用新配置发送数据。
在 UE61发生状态迁移时,UE61接收 RB重配置消息后,盲检测 HS-SCCH 的信道格式, 判断检测到的 HS-SCCH的信道格式与当前配置的 HS-SCCH的 信道格式是否一致, 若不一致, 则采用检测到的 HS-SCCH的信道格式解析并 接收数据,若一致,则采用当前配置的 HS-SCCH的信道格式解析并接收数据, 并继续盲检测 HS-SCCH的信道格式。
综上所述,本发明实施例提供的方法、装置和系统,通过盲检测 HS-SCCH 的信道格式, 在当前配置的 HS-SCCH的信道格式与网络侧采用的 HS-SCCH 的信道格式不一致时,采用与网络侧的 HS-SCCH的信道格式解析并接收数据。 避免了在下行同步完成之前, Node B和 UE采用新配置发送和接收数据的时 间不一致而导致无法通信, UE无法正确接收数据的情况的出现, 保证了数据 传输的正常进行。
本领域技术人员可以理解,可以使用许多不同的工艺和技术中的任意一种 来表示信息、 消息和信号。 例如, 上述说明中提到过的消息、 信息都可以表示 为电压、 电流、 电磁波、 磁场或磁性粒子、 光场或以上任意组合。
专业人员还可以进一步应能意识到,结合本文中所公开的实施例描述的各 示例的单元及算法步骤,能够以电子硬件、计算机软件或者二者的结合来实现, 为了清楚地说明硬件和软件的可互换性,在上述说明中已经按照功能一般性地 描述了各示例的组成及步骤。 这些功能究竟以硬件还是软件方式来执行,取决 于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用 来使用不同方法来实现所描述的功能 ,但是这种实现不应认为超出本发明的范 围。
结合本文中所公开的实施例描述的方法或算法的步骤可以用硬件、处理器 执行的软件模块, 或者二者的结合来实施。 软件模块可以置于随机存储器
( RAM )、 内存、只读存储器(ROM )、电可编程 ROM、电可擦除可编程 ROM、 寄存器、 硬盘、 可移动磁盘、 CD-ROM、 或技术领域内所公知的任意其它形式 的存储介质中。
对所公开的实施例的上述说明,使本领域专业技术人员能够实现或使用本 发明。 对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见 的, 本文中所定义的一般原理可以在不脱离本发明的精神或范围的情况下, 在 其它实施例中实现。 因此, 本发明将不会被限制于本文所示的这些实施例, 而 是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。

Claims

权 利 要 求
1. 一种数据传输方法, 其特征在于, 包括:
当发生状态迁移时, 接收高速共享控制信道 HS-SCCH的数据并检测所述 HS-SCCH的信道格式;
当所述检测到的 HS-SCCH的信道格式与当前配置的 HS-SCCH的信道格 式不一致时, 按照所述检测到的 HS-SCCH的信道格式解析 HS-SCCH信道并 接收数据。
2. 如权利要求 1 所述的方法, 其特征在于, 当所述检测到的 HS-SCCH 的信道格式与当前配置的 HS-SCCH 的信道格式一致时, 按照当前配置的 HS-SCCH的信道格式解析 HS-SCCH信道并接收数据, 并继续检测接收到的 HS-SCCH的信道格式。
3. 如权利要求 1 所述的方法, 其特征在于, 所述状态迁移包括: 从 CELL-FACH增强状态迁移到 CELL-DCH状态, 或者, 从 CELL-DCH状态迁 移到 CELL-FACH增强状态。
4. 如权利要求 1所述的方法, 其特征在于, 所述 HS-SCCH的信道格式 包括: HS-SCCH Typel、 HS-SCCH Type2或 HS-SCCH Type3。
5、 一种数据传输装置, 其特征在于, 用于在状态迁移时进行数据传输, 所述装置包括:
接收单元, 用于接收无线承载 RB重配置消息;
检测单元, 用于接收高速共享控制信道 HS-SCCH 的数据并检测所述
HS-SCCH的信道格式;
第一处理单元, 用于在所述检测单元检测到的 HS-SCCH的信道格式与当 前配置的 HS-SCCH的信道格式不一致时, 按照所述检测到的 HS-SCCH的信 道格式解析 HS-SCCH信道并接收数据。
6、 如权利要求 5所述的装置, 其特征在于, 还包括:
第二处理单元, 用于当所述检测单元检测到的 HS-SCCH的信道格式与当 前配置的 HS-SCCH的信道格式一致时, 按照当前配置的 HS-SCCH的信道格 式解析 HS-SCCH信道并接收数据, 并通知所述检测单元继续检测接收到的 HS-SCCH的信道格式。
7、 如权利要求 5所述的装置, 其特征在于, 所述 HS-SCCH的信道格式 包括: HS-SCCH Typel、 HS-SCCH Type2或 HS-SCCH Type3。
8、 如权利要求 5 所述的装置, 其特征在于, 所述状态迁移为: 从 CELL-FACH增强状态迁移到 CELL-DCH状态, 或者, 从 CELL-DCH状态迁 移到 CELL-FACH增强状态。
9. 一种用户设备, 其特征在于, 所述用户设备包括如权利要求 5-8任一 项所述的数据传输装置。
10.一种通信系统, 其特征在于, 包括: 网络侧设备和至少一个用户设备, 当发生状态迁移时,所述至少一个用户设备用于接收所述网络侧设备发送的高 速共享控制信道 HS-SCCH的数据并检测所述 HS-SCCH的信道格式, 当所述 检测到的 HS-SCCH的信道格式与当前配置的 HS-SCCH的信道格式不一致时, 按照所述检测到的 HS-SCCH的信道格式解析 HS-SCCH信道并接收数据。
PCT/CN2009/072372 2008-06-23 2009-06-22 数据传输方法、装置、用户设备及通信系统 WO2009155844A1 (zh)

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