WO2012139377A1 - 上行调度方法及系统、终端及基站 - Google Patents
上行调度方法及系统、终端及基站 Download PDFInfo
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- WO2012139377A1 WO2012139377A1 PCT/CN2011/082382 CN2011082382W WO2012139377A1 WO 2012139377 A1 WO2012139377 A1 WO 2012139377A1 CN 2011082382 W CN2011082382 W CN 2011082382W WO 2012139377 A1 WO2012139377 A1 WO 2012139377A1
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- 238000005516 engineering process Methods 0.000 description 4
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0833—Random access procedures, e.g. with 4-step access
Definitions
- the present invention relates to an uplink random access technology, and in particular, to an uplink scheduling method and system, a terminal, and a base station in a high-speed uplink packet access system. Background technique
- the high-speed uplink packet access technology improves the performance of uplink packet data by means of fast scheduling and physical layer fast retransmission combining.
- the high-speed uplink packet access technology introduces a new transport channel, an Enhanced Dedicated Transport Channel (E-DCH) for carrying user data, and the E-DCH is dedicated for carrying uplinks.
- E-DCH Enhanced Dedicated Transport Channel
- the upstream channel of the data is a Physical Random Access Channel (PRACH).
- PRACH Physical Random Access Channel
- the terminal has two basic operating modes, idle mode and connected mode.
- the connection mode can be further divided into the following different states: Universal Mobile Telecommunication System Radio Access Network Register Area PURA (URA-PCH) Status, Cell Paging Channel (CELL- PCH, CELL Paging Channel) status, CELL Forward Access Channel (CELL_FACH, CELL Forward Access Channel) status, and cell-specific channel (CELL_DCH, CELL Dedicated Channel) status, etc.
- UMA-PCH Universal Mobile Telecommunication System Radio Access Network Register Area PURA
- CELL- PCH Cell Paging Channel
- CELL_FACH CELL Forward Access Channel
- CELL_DCH CELL Dedicated Channel
- the terminal can use the high-speed uplink packet access technology to transmit uplink user data through the enhanced dedicated transport channel when transmitting uplink data.
- There are two transmission time intervals for the enhanced dedicated transport channel one is the transmission time interval of 2 milliseconds, that is, the scheduling of the enhanced dedicated transport channel is periodically transmitted at intervals of 2 milliseconds to transmit the enhanced type.
- Dedicated transport channel data this 2 millisecond transmission time interval is called short transmission time interval; the other is 10 millisecond transmission time interval, that is, the scheduling of the enhanced dedicated transmission channel is periodically performed at intervals of 10 milliseconds.
- the enhanced dedicated transport channel data is transmitted. This 10 millisecond transmission time interval is called a long transmission time interval.
- the terminal When the terminal performs services such as push (PUSH Email) and virtual connection, it is necessary to frequently send/receive packet data with the server. In response to this, the terminal can implement the foregoing service by using the resident CELL_FACH state to avoid frequent state transition to CELL_DCH.
- the smart phone terminal has been widely used in the Universal Mobile Telecommunications System (UMTS), and it is necessary to focus on the current network to improve the efficiency of the uplink. In particular, it is necessary to upgrade the enhanced dedicated transmission channel. Use efficiency.
- UMTS Universal Mobile Telecommunications System
- all public enhanced dedicated transport channel resources can only be configured as short transmission time intervals, or can only be configured as long transmission time intervals.
- the network typically directionalally selects a scheduling period configured for long transmission time intervals. In this way, terminals with large power headroom are forced to use lower rates to transmit data, so that the gains from fast scheduling of short transmission time intervals are not available. At the same time, those terminals with smaller power headrooms cannot benefit from the larger cell edge coverage brought by the scheduling period of long transmission time interval.
- the public enhanced dedicated transport channel resources in the cell can be used for both short transmission time interval scheduling and long transmission time interval scheduling.
- the terminal dynamically selects the short transmission time interval or the long transmission time interval to use the enhanced dedicated transmission channel resources to ensure coverage and meet the user's high-rate transmission requirements.
- the main purpose of the present invention is to provide an uplink scheduling method and system, and
- the terminal and the base station can select an appropriate uplink scheduling mode according to the network access condition, thereby achieving a high rate of uplink transmission and ensuring a large coverage.
- An uplink scheduling method where the preamble signature of the PRACH is at least divided into two types for indicating short transmission time interval mode scheduling and long transmission time interval mode scheduling; the method further includes: determining, by the terminal, the uplink random access The short transmission time interval mode or the long transmission time interval scheduling mode, and the preamble signature corresponding to the determined scheduling mode is used to construct the PRACH preamble to perform uplink random access.
- the method further includes:
- the network side divides the available preamble signatures of the PRACH into two types for indicating short transmission time interval mode scheduling and long transmission time interval mode scheduling, and notifies the terminal and the base station to which the terminal is located.
- the network side is a radio network controller
- the notifying the terminal and the base station to which the cell where the terminal is located is:
- the radio network controller notifies the terminal and the base station to which the terminal is located, or the radio network controller notifies the terminal by the base station to which the cell where the terminal belongs.
- the method further includes:
- the terminal After receiving the forward acknowledgment sent by the base station to which the cell in which the terminal belongs, the terminal uses the determined scheduling mode to schedule the resource that carries the uplink data to be sent, and performs uplink data transmission.
- the method further includes:
- the base station to which the cell in which the terminal is located listens to the PRACH, determines a current scheduling mode according to the preamble signature in the PRACH, and sends a forward acknowledgement to the terminal; and then receives the uplink data by using the determined scheduling manner.
- the receiving the uplink data by using the determined scheduling manner is:
- the base station performs scheduling of E-DCH resources to receive enhanced dedicated transmission channel data by using an interval period of a short transmission time interval;
- the base station performs scheduling of E-DCH resources to receive enhanced dedicated transport channel data using an interval period of a long transmission time interval.
- the short transmission time interval scheduling mode is: the terminal uses the interval of the short transmission time interval to perform scheduling of the E-DCH resource to transmit the enhanced dedicated transmission channel data; the long transmission time interval scheduling mode is The terminal performs scheduling of E-DCH resources to transmit enhanced dedicated transport channel data using an interval period of a long transmission time interval.
- a terminal includes a receiving unit, a determining unit, and a random access unit, where two types of notifications indicating short transmission time interval mode scheduling and long transmission time interval mode scheduling are performed;
- a determining unit configured to determine a short transmission time interval manner or a long transmission time interval scheduling manner used in uplink random access
- the random access unit is configured to select a preamble corresponding to the determined scheduling manner to construct a preamble of the PRACH, and perform uplink random access.
- the terminal further includes:
- a sending unit configured to: after the receiving unit receives the forward acknowledgment sent by the base station to which the cell where the terminal belongs, perform scheduling of the E-DCH resource to send the enhanced dedicated transport channel data by using the determined scheduling manner.
- a base station includes a receiving unit, a listening unit, and a sending unit, where two types of notifications indicating short transmission time interval mode scheduling and long transmission time interval mode scheduling are performed;
- a listening unit configured to listen to the PRACH of the terminal, according to the preamble signature in the PRACH Determine the current scheduling method
- a sending unit configured to send a positive confirmation to the terminal
- the receiving unit further performs scheduling of the E-DCH resource to receive the enhanced dedicated transport channel data by using the determined scheduling manner.
- An uplink scheduling system including a network side, a terminal, and a base station to which the terminal is located;
- the network side is configured to divide the preamble signature of the PRACH into at least two types for indicating short transmission time interval mode scheduling and long transmission time interval mode scheduling, and notifying the terminal and the base station to which the terminal is located;
- the terminal is configured to determine a short transmission time interval mode or a long transmission time interval scheduling mode used in uplink random access, and select a preamble signature corresponding to the determined scheduling mode to construct a PRACH preamble to perform uplink random access.
- the network side is a radio network controller
- the radio network controller is further configured to notify the terminal and the base station to which the terminal is located, or notify the terminal by the base station to which the cell where the terminal belongs.
- the terminal is further configured to: after receiving the forward acknowledgment sent by the base station to which the cell where the terminal belongs, perform scheduling of the E-DCH resource to send the enhanced dedicated transport channel data by using the determined scheduling manner.
- the base station to which the cell in which the terminal belongs is further configured to: listen to the PRACH of the terminal, determine a current scheduling mode according to the preamble signature in the PRACH, and send a positive acknowledgement to the terminal;
- the scheduling mode performs scheduling of E-DCH resources to receive enhanced dedicated transport channel data.
- the terminal can use short transmission time when performing uplink data scheduling.
- Interval scheduling can also be used for long transmission The scheduling of the time interval mode.
- the present invention is directed to the network coverage and the terminal characteristics, and the terminal dynamically selects the short transmission time interval scheduling mode or the long transmission time interval scheduling mode to use the enhanced dedicated transmission channel resources, thereby ensuring the network coverage and the uplink high rate. Transmission requirements. DRAWINGS
- Embodiment 1 is a flowchart of Embodiment 1 of an uplink scheduling method according to the present invention
- Embodiment 2 is a flowchart of Embodiment 2 of an uplink scheduling method according to the present invention
- Embodiment 3 is a flowchart of Embodiment 3 of an uplink scheduling method according to the present invention.
- Embodiment 4 is a flowchart of Embodiment 4 of an uplink scheduling method according to the present invention.
- FIG. 5 is a schematic structural diagram of a terminal of the present invention.
- FIG. 6 is a schematic structural diagram of a base station of the present invention. detailed description
- the basic idea of the present invention is: by dividing the preamble signature of the PRACH into at least two types of scheduling for short transmission time interval scheduling and long transmission time interval scheduling, the terminal can be used when performing uplink data scheduling. Scheduling in short transmission time interval mode can also be used for scheduling in long transmission time interval mode.
- the network side (radio network controller, etc.) divides the available preamble signatures of the preamble portion of the physical random access channel carrying the enhanced dedicated transport channel into the available preamble signature subset A and the available preamble signature subset B.
- the enhanced dedicated transport channel data is transmitted or received using the available preamble signature subset A to indicate that the scheduling of the enhanced dedicated transport channel is performed using an interval period of a short transmission time interval.
- Using the available preamble signature subset B to indicate the scheduling of the enhanced dedicated transport channel using the interval period of the long transmission time interval to transmit or receive the enhanced specialization Use the transmission channel data.
- the transmission time interval used by the terminal to determine the uplink ie, the scheduling mode for determining the uplink data;
- the scheduling of the uplink data selected by the base station (Node B) by using the available preamble signature subset A or the available preamble signature subset B Mode using long time interval to schedule uplink data or short time interval to schedule uplink data.
- the terminal and the Node B perform transmission and reception of enhanced dedicated transport channel data at a uniform transmission time interval.
- the base station mainly refers to a Node B (Node B).
- Node B Node B
- it may also be a normal base station or an evolved base station.
- FIG. 1 is a flowchart of Embodiment 1 of an uplink scheduling method according to the present invention. As shown in FIG. 1 , the uplink scheduling method in this example specifically includes the following steps:
- Step 110 The terminal receives the radio resource control (RRC) signal sent by the radio network controller in the camping cell, and obtains the following information: a preamble part of the physical random access channel carrying the enhanced dedicated transport channel.
- RRC radio resource control
- the available preamble signature subset A and the available preamble signature subset B of the available preamble signature indicate that the scheduling of the enhanced dedicated transport channel is performed with an interval period of a short transmission time interval to transmit (terminal side) or receive (base station side) enhanced dedicated transport channel data.
- the use of the available preamble signature subset B indicates that the enhanced dedicated transport channel is scheduled to transmit or receive enhanced dedicated transport channel data using an interval period of long transmission time intervals.
- the terminal saves information of the available preamble signature subset A and the available preamble signature subset B obtained from the radio network controller.
- Step 120 The terminal determines to use the short transmission time interval to perform scheduling of the enhanced dedicated transport channel to transmit the enhanced dedicated transport channel data according to a certain strategy.
- choose short pass The policy of scheduling the uplink data in the time interval mode scheduling or selecting the long transmission time interval mode is configured in advance in the terminal. For example, when the network coverage is required, the long-term interval is used to schedule the uplink data, and the data transmission rate needs to be used to schedule the uplink data in a short interval.
- the configuration of the foregoing policy is easy to implement. Since it is not difficult or important to implement the technical solution of the present invention, the manner of determining the policy will not be repeated here.
- Step 130 The terminal initiates uplink random access.
- the terminal randomly selects a preamble signature to construct a PRACH preamble in the available preamble signature subset A, and performs uplink random access.
- Step 140 The terminal downlink receives the forward acknowledgment of the acquisition indication channel from the Node B, and the enhanced dedicated transmission channel resource allocated by the Node B for use by the terminal.
- Step 150 The terminal performs scheduling of the enhanced dedicated transport channel at a short transmission time interval to transmit enhanced dedicated transport channel data. After the data transmission is completed, the enhanced dedicated transport channel resources are released.
- Step 160 assuming that the terminal decides to use the long transmission time interval for scheduling the enhanced dedicated transport channel to transmit the enhanced dedicated transport channel data according to a certain policy.
- Step 170 The terminal attempts to initiate uplink random access.
- the terminal randomly selects a preamble signature in the available preamble signature subset B to construct a PRACH preamble for uplink random access.
- Step 180 The terminal downlink receives the forward acknowledgment from the acquisition indication channel, and the enhanced dedicated transmission channel resource allocated by the node B for use by the terminal.
- Step 190 The terminal performs scheduling of the enhanced dedicated transport channel at a long transmission time interval to transmit enhanced dedicated transport channel data. After the data transmission is completed, the enhanced dedicated transport channel resources are released.
- the radio network controller is only a representative of the network side, and in other communication networks, it may also be a mobility management entity (MME, Mobile Management Entity), etc., of course, other Network element.
- MME mobility management entity
- Mobile Management Entity Mobile Management Entity
- Embodiment 2 This example focuses on the processing on the base station side.
- 2 is a flowchart of Embodiment 2 of an uplink scheduling method according to the present invention.
- the example uplink scheduling method includes the following steps: Step 210: A Node B receives a Node B application part protocol sent by a radio network controller ( NBAP, NodeB Application Part) signaling, configuration of public enhanced dedicated transport channel operations in a designated cell.
- the ⁇ signaling includes the following information: The available preamble signature subset ⁇ and the available preamble signature subset ⁇ of the available preamble signature of the preamble portion of the physical random access channel carrying the enhanced dedicated transport channel.
- the enhanced dedicated transport channel data is transmitted or received using the available preamble signature subset ⁇ indicating that the scheduling of the enhanced dedicated transport channel is performed using an interval period of a short transmission time interval.
- the use of the available preamble signature subset B indicates that the scheduling of the enhanced dedicated transport channel is used to transmit or receive enhanced dedicated transport channel data using an interval period of long transmission time intervals. Node B saves this information.
- Step 220 The Node B listens to the physical random access channel initiated by the terminal in the designated cell.
- Step 240 Node B sends a forward acknowledgment by capturing the indication channel, and an enhanced dedicated transport channel resource allocated by the Node B for use by the terminal.
- Step 250 Node B performs scheduling of the enhanced dedicated transport channel at short transmission time intervals to receive enhanced dedicated transport channel data. After the data reception is completed, the enhanced dedicated transport channel resources are released.
- Step 260 The Node B listens to the physical random access channel initiated by the terminal in the designated cell.
- Step 270 The Node B parses the preamble signature in the preamble of the PRACH, and determines that the preamble signature belongs to the available preamble signature subset B, and the Node B records the terminal using the long transmission time interval.
- Step 280 The Node B sends a forward acknowledgment by capturing the indication channel, and an enhanced dedicated transport channel resource allocated by the Node B for use by the terminal.
- Step 290 The Node B performs scheduling of the enhanced dedicated transport channel at a long transmission time interval to receive the enhanced dedicated transport channel data. After the data reception is completed, the enhanced dedicated transport channel resources are placed.
- FIG. 3 is a flowchart of Embodiment 2 of the uplink scheduling method of the present invention. As shown in FIG. 3, the uplink scheduling method in this example specifically includes the following steps:
- Step 310 The radio network controller determines a configuration for performing a public enhanced dedicated transport channel operation in the designated cell.
- the specific configuration includes: an available preamble signature subset A and an available preamble signature subset B of the available preamble signature of the preamble portion of the physical random access channel carrying the enhanced dedicated transport channel.
- the available preamble signature subset A is used to indicate that the scheduling of the enhanced dedicated transport channel is used to transmit or receive the enhanced dedicated transport channel data using the interval period of the short transmission time interval.
- the use of the available preamble signature subset B indicates that the scheduling of the enhanced dedicated transport channel is used to transmit or receive enhanced dedicated transport channel data using an interval period of long transmission time intervals.
- Step 320 The radio network controller sends the NBAP signaling to the Node B, and notifies the Node B to perform the configuration of the public enhanced dedicated transport channel operation in the designated cell.
- the NBAP signaling includes the following information: an available preamble signature subset A and an available preamble signature subset B of the preamble portion of the physical random access channel carrying the enhanced dedicated transport channel.
- the use of the available preamble name subset A indicates that the scheduling of the enhanced dedicated transport channel is used to transmit or receive enhanced dedicated transport channel data using an interval period of short transmission time intervals.
- the use of the available preamble signature subset B indicates that the scheduling of the enhanced dedicated transport channel is used to transmit or receive enhanced dedicated transport channel data using an interval period of long transmission time intervals.
- Step 330 The radio network controller sends RRC signaling to the terminal in the designated cell, where the RRC signaling includes the following information: an available preamble signature of the available preamble signature of the preamble portion of the physical random access channel carrying the enhanced dedicated transport channel.
- Set A and the available preamble signature subset B Its The use of the available preamble signature subset A indicates that the scheduling of the enhanced dedicated transport channel is used to transmit or receive enhanced dedicated transport channel data using an interval period of short transmission time intervals.
- the use of the available preamble signature subset B indicates that the scheduling of the enhanced dedicated transport channel is used to transmit or receive enhanced dedicated transport channel data using an interval period of long transmission time intervals.
- the radio network controller may separately send NBAP signaling and RRC signaling to the base station and the terminal to notify the PRACH preamble signature to be divided, or first notify the base station by using the NBAP signaling, and then notify the terminal by the base station. Since the implementation of the above notification is easy to implement, the specific implementation of the present invention will not be repeated.
- FIG. 4 is a flowchart of Embodiment 2 of an uplink scheduling method according to the present invention. As shown in FIG. 4, the uplink scheduling method in this example specifically includes the following steps:
- the radio network controller determines the configuration of the public enhanced dedicated transport channel operation in the designated cell.
- the specific configuration includes: an available preamble signature subset A and an available preamble signature subset B of the available preamble signature of the preamble portion of the physical random access channel carrying the enhanced dedicated transport channel.
- the available preamble signature subset A is used to indicate that the scheduling of the enhanced dedicated transport channel is used to transmit or receive the enhanced dedicated transport channel data using the interval period of the short transmission time interval.
- the use of the available preamble signature subset B indicates that the scheduling of the enhanced dedicated transport channel is used to transmit or receive enhanced dedicated transport channel data using an interval period of long transmission time intervals.
- Step 420 The radio network controller sends the NBAP signaling to the Node B, and notifies the Node B to perform the configuration of the public enhanced dedicated transport channel operation in the designated cell.
- the NBAP signaling includes the following information: an available preamble signature subset A and an available preamble signature subset B of the preamble portion of the physical random access channel carrying the enhanced dedicated transport channel.
- Node B saves the above information.
- Step 430 The terminal camps in the designated cell and is in a cell forward access channel state.
- the terminal receives the RRC signaling sent by the radio network controller in the designated cell, and obtains the following from Information: The available preamble signature subset A and the available preamble signature subset B of the available preamble signature of the preamble portion of the physical random access channel carrying the enhanced dedicated transport channel.
- the terminal saves the above information.
- Step 440 The terminal decides to use the short transmission time interval to perform the scheduling of the enhanced dedicated transport channel to transmit the enhanced dedicated transport channel data.
- Step 450 The terminal attempts to initiate uplink random access in the designated cell.
- the terminal randomly selects a preamble signature in the available preamble signature subset A to construct a PRACH preamble for uplink random access.
- Step 460 The Node B receives the physical random access channel preamble initiated by the terminal in the designated cell.
- Step 470 the Node B parses the preamble signature in the PRACH preamble, determines that the preamble signature belongs to the available preamble signature subset A, and the Node B records the terminal using the short transmission time interval.
- Step 480 Node B sends a forward acknowledgment by capturing the indication channel, and an enhanced dedicated transport channel resource allocated by the Node B for use by the terminal.
- the terminal downlink receives a positive acknowledgment from the acquisition indicator channel and an enhanced dedicated transmission channel resource allocated by the Node B for use by the terminal.
- Step 490 The terminal performs scheduling of the enhanced dedicated transport channel at a short transmission time interval to transmit enhanced dedicated transport channel data.
- Node B performs scheduling of the enhanced dedicated transport channel at short transmission time intervals to receive enhanced dedicated transport channel data. After the data reception is completed, the enhanced dedicated transport channel resources are released.
- step 500 the terminal decides to use the long transmission time interval for the scheduling of the enhanced dedicated transport channel to transmit the enhanced dedicated transport channel data.
- Step 510 The terminal initiates uplink random access in the designated cell.
- the terminal randomly selects a preamble signature to construct a PRACH preamble in the preamble signature subset B, and performs uplink random access.
- Step 520 The Node B receives the physical random access message initiated by the terminal in the designated cell. Leading the way.
- Step 530 The Node B parses the preamble signature in the PRACH preamble, and determines that the preamble signature belongs to the available preamble signature subset B, and the Node B records the terminal using the long transmission time interval.
- Step 540 Node B sends a forward acknowledgment by capturing the indication channel, and an enhanced dedicated transport channel resource allocated by the Node B for use by the terminal.
- the terminal downlink receives a positive acknowledgment from the acquisition indicator channel and an enhanced dedicated transmission channel resource allocated by the Node B for use by the terminal.
- Step 550 The terminal performs scheduling of the enhanced dedicated transport channel at a long transmission time interval to transmit enhanced dedicated transport channel data.
- Node B performs scheduling of the enhanced dedicated transport channel at long transmission time intervals to receive enhanced dedicated transport channel data. After the data reception is completed, the enhanced dedicated transport channel resources are released.
- the terminal of the present invention includes a receiving unit 50, a determining unit 51, and a random access unit 52, where
- the receiving unit 50 is configured to receive, by the network side, the preamble signature of the PRACH into at least two types of notifications for indicating short transmission time interval mode scheduling and long transmission time interval mode scheduling;
- a determining unit 51 configured to determine a short transmission time interval manner or a long transmission time interval scheduling manner used in uplink random access
- the random access unit 52 is configured to select a preamble corresponding to the determined scheduling manner to construct a preamble of the PRACH, and perform uplink random access.
- the terminal of the present invention further includes:
- a sending unit (not shown), configured to: after the receiving unit receives the forward acknowledgment sent by the base station to which the cell where the terminal belongs, use the determined scheduling manner to perform E-DCH resource scheduling to send the enhanced dedicated Transport channel data.
- the terminal shown in FIG. 5 is mainly used in the foregoing embodiment 1.
- the functions of the processing units in the terminal shown in FIG. 5 can be understood by referring to the related descriptions of the first embodiment to the fourth embodiment.
- the functions of the processing units can be implemented by running a program on the processor. It can also be realized by a specific logic circuit.
- the base station of the present invention includes a receiving unit 60, a listening unit 61, and a transmitting unit 62, where
- the receiving unit 60 is configured to receive, by the network side, the preamble signature of the PRACH into at least two types of notifications for indicating short transmission time interval mode scheduling and long transmission time interval mode scheduling;
- a listening unit 61 configured to detect a PRACH of the terminal, and determine a current scheduling mode according to the preamble signature in the PRACH;
- a sending unit 62 configured to send a forward acknowledgement to the terminal
- the receiving unit 60 further performs scheduling of the E-DCH resource to receive the enhanced dedicated transport channel data by using the determined scheduling manner.
- the base station shown in FIG. 6 is mainly used in the foregoing Embodiments 1 to 4.
- the functions of the processing units in the base station shown in FIG. 6 may refer to the related descriptions of the foregoing Embodiment 1 to Embodiment 4. It is understood that the functions of the various processing units can be implemented by a program running on the processor, or by a specific logic circuit.
- the present invention also describes an uplink scheduling system, including a network side, a terminal, and a base station to which the cell in which the terminal belongs;
- the network side is configured to divide the preamble signature of the PRACH into at least two types for indicating short transmission time interval mode scheduling and long transmission time interval mode scheduling, and notifying the terminal and the base station to which the terminal is located;
- the terminal is configured to determine a short transmission time interval mode or a long transmission time interval scheduling mode used in the uplink random access, and select a preamble signature corresponding to the determined scheduling mode to construct a PRACH preamble to perform uplink random access.
- the above network side is a radio network controller;
- the radio network controller is further configured to notify the terminal and the base station to which the terminal is located, or notify the terminal by the base station to which the cell where the terminal belongs.
- the terminal is further configured to: after receiving the forward acknowledgment sent by the base station to which the cell in which the terminal belongs, perform scheduling of the E-DCH resource by using the determined scheduling manner, and send the enhanced dedicated transport channel data.
- the base station to which the cell in which the terminal is located is further configured to: listen to the PRACH of the terminal, determine a current scheduling mode according to the preamble signature in the PRACH, and send a forward acknowledgement to the terminal; and then use the determined scheduling manner.
- the enhanced dedicated transport channel data is received by scheduling of E-DCH resources.
- the uplink scheduling system of the present invention is implemented to implement the foregoing uplink scheduling method.
- the present invention is not modified, and only the functions implemented by the foregoing network elements are related to the existing network. The functions implemented by the relevant network elements are different.
- the uplink scheduling system of the present invention can be understood by referring to the related descriptions of the first embodiment to the fourth embodiment.
- the preamble signature of the PRACH is at least divided into two types for indicating the short transmission time interval mode scheduling and the long transmission time interval mode scheduling, so that the terminal can use the short transmission time interval when performing uplink data scheduling.
- Mode scheduling can also be used for scheduling in long transmission time interval mode.
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Abstract
本发明公开了一种上行调度方法,将PRACH的前导签名至少分为用于指示短传输时间间隔方式调度和长传输时间间隔方式调度的两种类型;所述方法还包括:终端确定上行随机接入时所使用的短传输时间间隔方式或长传输时间间隔调度方式,并选用与所确定的调度方式对应的前导签名构建PRACH的前导,进行上行随机接入。本发明同时公开了一种上行调度系统,终端以及基站。本发明针对网络覆盖情况以及终端特性,由终端动态选择短传输时间间隔调度方式或长传输时间间隔调度方式来使用增强型专用传输信道资源,从而既确保了网络覆盖范围,又能够满足上行高速率传输需求。
Description
上行调度方法及系统、 终端及基站 技术领域
本发明涉及一种上行随机接入技术, 尤其涉及一种高速上行链路分组 接入系统中的上行调度方法及系统、 终端及基站。 背景技术
高速上行链路分组接入技术通过快速调度以及物理层快速重传合并等 手段来改善上行链路分组数据的性能。 为此, 高速上行链路分组接入技术 引入了一种新的传输信道一增强型专用传输信道 (E-DCH , Enhanced Dedicated Transport Channel )用于承载用户数据, E-DCH为专门用于承载 上行数据的上行信道。 另外, 承载增强型专用传输信道的物理信道是物理 随机接入信道( PRACH, Physical Random Access Channel )。
终端有两个基本操作模式, 分别是空闲模式和连接模式。 连接模式可 以进一步分为以下不同的状态: 通用移动通讯系统无线接入网注册区域寻 呼信道 ( URA—PCH, Universal mobile telecommunication system Radio access network Register area Paging Channel )状态、 小区寻呼信道 ( CELL—PCH, CELL Paging Channel ) 状态、 小区前向接入信道( CELL_FACH, CELL Forward Access Channel ) 状态以及小区专用信道 ( CELL_DCH , CELL Dedicated Channel )状态等, 这些状态定义了终端可以使用的物理信道及传 输信道的种类。
在 CELL_FACH状态下, 终端在发送上行数据时可使用高速上行链路 分组接入技术, 通过增强型专用传输信道来发送上行用户数据。 增强型专 用传输信道的传输时间间隔有两种, 一种是 2毫秒的传输时间间隔, 也就 是以 2毫秒的间隔周期性地进行增强型专用传输信道的调度来发送增强型
专用传输信道数据, 这种 2毫秒的传输时间间隔称为短传输时间间隔; 另 外一种是 10毫秒的传输时间间隔, 也就是以 10毫秒的间隔周期性地进行 增强型专用传输信道的调度来发送增强型专用传输信道数据, 这种 10毫秒 的传输时间间隔称为长传输时间间隔。
终端开展如电子邮件的推送(PUSH Email )、 虚拟连接等业务时, 需要 与服务器之间频繁地发送 /接收小包数据。 针对于此, 终端可以采用常驻 CELL_FACH状态来实现上述业务, 以避免频繁地到 CELL_DCH的状态迁 移。 此外, 智能手机终端在通用移动通信系统 (UMTS, Universal Mobile Telecommunications System ) 中得到了大规模使用, 需要针对现网现况来着 力提升上行链路的使用效率, 特别是需要提升增强型专用传输信道的使用 效率。
现有技术中, 所有的公共增强型专用传输信道资源只能够配置为短传 输时间间隔, 或者只能够配置为长传输时间间隔。 考虑到需要确保较大的 随机接入信道覆盖范围的这个主要约束, 网络通常趋向性地选择配置为长 传输时间间隔的调度周期。 这样, 就使得那些具备较大功率余量的终端被 迫使用较低速率来传输数据, 使得短传输时间间隔的快速调度所带来的增 益不可用。 同时, 那些具备较小功率余量的终端, 也无法从长传输时间间 隔的调度周期带来的更大小区边缘覆盖范围中受益。
考虑到上述限制, 期望进行如下改进, 小区中的公共的增强型专用传 输信道资源既可以用于短传输时间间隔的调度, 也可以用于长传输时间间 隔的调度。 针对网络覆盖情况以及终端特性, 由终端动态选择短传输时间 间隔或长传输时间间隔来使用增强型专用传输信道资源, 以既确保覆盖范 围又能够满足用户高速率传输需求。 发明内容
有鉴于此, 本发明的主要目的在于提供一种上行调度方法及系统、 终
端及基站, 能根据网络接入状况选用适当的上行调度方式, 实现了上行传 输的高速率及确保了较大的覆盖范围。
为达到上述目的, 本发明的技术方案是这样实现的:
一种上行调度方法,将 PRACH的前导签名至少分为用于指示短传输时 间间隔方式调度和长传输时间间隔方式调度的两种类型; 所述方法还包括: 终端确定上行随机接入时所使用的短传输时间间隔方式或长传输时间 间隔调度方式,并选用与所确定的调度方式对应的前导签名构建 PRACH的 前导, 进行上行随机接入。
优选地, 所述方法还包括:
网络侧将 PRACH 的可用前导签名分为用于指示短传输时间间隔方式 调度和长传输时间间隔方式调度的两种类型, 并通知所述终端及所述终端 所在小区所属的基站。
优选地, 所述网络侧为无线网络控制器;
所述通知所述终端及所述终端所在小区所属的基站, 为:
所述无线网络控制器分别通知所述终端及所述终端所在小区所属的基 站, 或者, 所述无线网络控制器通过所述终端所在小区所属的基站通知所 述终端。
优选地, 所述方法还包括:
所述终端接收到所述终端所在小区所属的基站发送的正向确认后, 使 用所确定的调度方式调度承载待发送上行数据的资源, 进行上行数据发送。
优选地, 所述方法还包括:
所述终端所在小区所属的基站侦听所述 PRACH, 根据所述 PRACH中 的前导签名确定当前的调度方式, 向所述终端发送正向确认; 随后利用所 确定的调度方式接收上行数据。
优选地, 所述利用所确定的调度方式接收上行数据, 为:
所述基站使用短传输时间间隔的间隔周期进行 E-DCH资源的调度来接 收增强型专用传输信道数据;
或者, 所述基站使用长传输时间间隔的间隔周期进行 E-DCH资源的调 度来接收增强型专用传输信道数据。
优选地, 所述短传输时间间隔调度方式为, 所述终端使用短传输时间 间隔的间隔周期进行 E-DCH资源的调度来发送增强型专用传输信道数据; 所述长传输时间间隔调度方式为, 所述终端使用长传输时间间隔的间 隔周期进行 E-DCH资源的调度来发送增强型专用传输信道数据。
一种终端, 包括接收单元、 确定单元和随机接入单元, 其中, 指示短传输时间间隔方式调度和长传输时间间隔方式调度的两种类型的通 知;
确定单元, 用于确定上行随机接入时所使用的短传输时间间隔方式或 长传输时间间隔调度方式;
随机接入单元, 用于选用与所确定的调度方式对应的前导签名构建 PRACH的前导, 进行上行随机接入。
优选地, 所述终端还包括:
发送单元, 用于在所述接收单元接收到所述终端所在小区所属的基站 发送的正向确认后, 使用所确定的调度方式进行 E-DCH资源的调度来发送 增强型专用传输信道数据。
一种基站, 包括接收单元、 侦听单元和发送单元, 其中, 指示短传输时间间隔方式调度和长传输时间间隔方式调度的两种类型的通 知;
侦听单元, 用于侦听终端的 PRACH , 根据所述 PRACH中的前导签名
确定当前的调度方式;
发送单元, 用于向终端发送正向确认;
所述接收单元进一步利用所确定的调度方式进行 E-DCH资源的调度来 接收增强型专用传输信道数据。
一种上行调度系统, 包括网络侧、 终端和所述终端所在小区所属的基 站; 其中,
网络侧,用于将 PRACH的前导签名至少分为用于指示短传输时间间隔 方式调度和长传输时间间隔方式调度的两种类型, 并通知所述终端及所述 终端所在小区所属的基站;
终端, 用于确定上行随机接入时所使用的短传输时间间隔方式或长传 输时间间隔调度方式, 并选用与所确定的调度方式对应的前导签名构建 PRACH的前导, 进行上行随机接入。
优选地, 所述网络侧为无线网络控制器;
所述无线网络控制器进一步用于, 分别通知所述终端及所述终端所在 小区所属的基站, 或者, 通过所述终端所在小区所属的基站通知所述终端。
优选地, 所述终端进一步用于, 在接收到所述终端所在小区所属的基 站发送的正向确认后, 使用所确定的调度方式进行 E-DCH资源的调度来发 送增强型专用传输信道数据。
优选地, 所述终端所在小区所属的基站进一步用于, 侦听所述终端的 PRACH, 根据所述 PRACH中的前导签名确定当前的调度方式, 向所述终 端发送正向确认; 随后利用所确定的调度方式进行 E-DCH资源的调度来接 收增强型专用传输信道数据。
本发明中,通过将 PRACH的前导签名至少分为用于指示短传输时间间 隔方式调度和长传输时间间隔方式调度的两种类型, 实现了终端在进行上 行数据调度时, 既可以使用短传输时间间隔方式的调度, 也可以用于长传
输时间间隔方式的调度。 本发明针对网络覆盖情况以及终端特性, 由终端 动态选择短传输时间间隔调度方式或长传输时间间隔调度方式来使用增强 型专用传输信道资源, 从而既确保了网络覆盖范围, 又能够满足上行高速 率传输需求。 附图说明
图 1为本发明上行调度方法实施例一的流程图;
图 2为本发明上行调度方法实施例二的流程图;
图 3为本发明上行调度方法实施例三的流程图;
图 4为本发明上行调度方法实施例四的流程图;
图 5为本发明终端的组成结构示意图;
图 6为本发明基站的组成结构示意图。 具体实施方式
本发明的基本思想为:通过将 PRACH的前导签名至少分为用于指示短 传输时间间隔方式调度和长传输时间间隔方式调度的两种类型, 实现了终 端在进行上行数据调度时, 既可以使用短传输时间间隔方式的调度, 也可 以用于长传输时间间隔方式的调度。
为使本发明的目的、 技术方案和优点更加清楚明白, 以下举实施例并 参照附图, 对本发明进一步详细说明。
本发明中, 网络侧 (无线网络控制器等)将承载增强型专用传输信道 的物理随机接入信道的前导部分的可用前导签名分为可用前导签名子集 A 和可用前导签名子集 B。 其中, 使用可用前导签名子集 A指示采用短传输 时间间隔的间隔周期进行增强型专用传输信道的调度, 来发送或者接收增 强型专用传输信道数据。 使用可用前导签名子集 B指示采用长传输时间间 隔的间隔周期进行增强型专用传输信道的调度, 来发送或者接收增强型专
用传输信道数据。 由终端决策上行所使用的传输时间间隔 (即确定上行数 据的调度方式;),通过使用可用前导签名子集 A或可用前导签名子集 B来通 知基站(节点 B )所选用的上行数据的调度方式(使用长时间间隔方式调 度上行数据或使用短时间间隔方式调度上行数据)。终端和节点 B以一致的 传输时间间隔来进行增强型专用传输信道数据的发送和接收。
本发明中基站主要是指节点 B ( Node B ), 当然, 针对多应用的通信系 统, 也可能是普通基站或演进基站等。
以下通过具体的示例, 进一步阐明本发明技术方案的实质。
实施例一
本示例侧重描述了终端侧的上行随机接入及上行数据发送过程, 终端 驻留在某个小区, 并处于小区前向接入信道状态。 图 1 为本发明上行调度 方法实施例一的流程图, 如图 1 所示, 本示例上行调度方法具体包括以下 步驟:
步驟 110,终端接收到驻留小区中由无线网络控制器发送的无线资源控 制 (RRC, Radio Resource Control )信令, 从中获得如下信息: 承载增强型 专用传输信道的物理随机接入信道的前导部分的可用前导签名的可用前导 签名子集 A和可用前导签名子集 B。 使用可用前导签名子集 A则指示采用 短传输时间间隔的间隔周期进行增强型专用传输信道的调度来发送(终端 侧)或者接收(基站侧)增强型专用传输信道数据。 使用可用前导签名子 集 B则指示采用长传输时间间隔的间隔周期进行增强型专用传输信道的调 度来发送或者接收增强型专用传输信道数据。
终端保存从无线网络控制器获得的可用前导签名子集 A和可用前导签 名子集 B的信息。
步驟 120, 4叚设终端依据某种策略, 决定使用短传输时间间隔进行增强 型专用传输信道的调度来发送增强型专用传输信道数据。 这里, 选用短传
输时间间隔方式调度或选用长传输时间间隔方式调度上行数据的策略事先 配置于终端中。 例如, 需要保证网络覆盖范围时, 选用长时间间隔方式调 度上行数据, 而需要提升数据传输速率时使用短时间间隔方式调度上行数 据。 上述策略的配置是容易实现的, 由于不是实现本发明技术方案的难点, 也非重点, 这里不再赘述策略的确定方式。
步驟 130, 终端发起上行随机接入。 终端在可用前导签名子集 A中随 机选择一个前导签名构建 PRACH的前导, 进行上行随机接入。
步驟 140, 终端下行接收到来自节点 B的捕获指示信道的正向确认, 以及由节点 B分配的给该终端使用的增强型专用传输信道资源。
步驟 150,终端以短传输时间间隔进行增强型专用传输信道的调度来发 送增强型专用传输信道数据。 数据发送结束后, 增强型专用传输信道资源 被释放。
步驟 160,假设终端依据某种策略, 终端决定使用长传输时间间隔进行 增强型专用传输信道的调度来发送增强型专用传输信道数据。
步驟 170, 终端试图发起上行随机接入。 终端在可用前导签名子集 B 中随机选择一个前导签名构建 PRACH前导, 进行上行随机接入。
步驟 180, 终端下行接收到来自捕获指示信道的正向确认, 以及由节点 B分配的给该终端使用的增强型专用传输信道资源。
步驟 190,终端以长传输时间间隔进行增强型专用传输信道的调度来发 送增强型专用传输信道数据。 数据发送结束后, 增强型专用传输信道资源 被释放。
需要说明的是, 本发明中, 无线网络控制器仅是网络侧的一种代表, 在其他通信网络中, 也可以是移动性管理实体(MME, Mobile Management Entity )等, 当然, 也可以是其他的网元。
实施例二
本示例侧重描述了基站侧的处理过程。 图 2为本发明上行调度方法实 施例二的流程图, 如图 2所示, 本示例上行调度方法具体包括以下步驟: 步驟 210, 节点 B接收由无线网络控制器发送的节点 B应用部分协议 ( NBAP , NodeB Application Part )信令, 在指定小区中进行公共增强型专 用传输信道操作的配置。 ΝΒΑΡ信令包括如下信息: 承载增强型专用传输 信道的物理随机接入信道的前导部分的可用前导签名的可用前导签名子集 Α和可用前导签名子集 Β。 其中, 使用可用前导签名子集 Α指示采用短传 输时间间隔的间隔周期进行增强型专用传输信道的调度来发送或者接收增 强型专用传输信道数据。 使用可用前导签名子集 B指示采用长传输时间间 隔的间隔周期进行增强型专用传输信道的调度来发送或者接收增强型专用 传输信道数据。 节点 B保存这些信息。
步驟 220, 节点 B在此指定小区中侦听终端发起的物理随机接入信道。 步驟 230, 节点 B解析 PRACH的前导中的前导签名, 判断该前导签名 属于可用前导签名子集 A, 节点 B记录此终端使用短传输时间间隔。
步驟 240, 节点 B通过捕获指示信道发送正向确认, 以及由节点 B分 配的给该终端使用的增强型专用传输信道资源。
步驟 250, 节点 B 以短传输时间间隔进行增强型专用传输信道的调度 来接收增强型专用传输信道数据。 数据接收结束后, 增强型专用传输信道 资源被释放。
步驟 260, 节点 B在该指定小区中侦听到终端发起的物理随机接入信 道。
步驟 270, 节点 B解析 PRACH的前导中的前导签名, 判断该前导签名 属于可用前导签名子集 B, 节点 B记录该终端使用长传输时间间隔。
步驟 280, 节点 B通过捕获指示信道发送正向确认, 以及由节点 B分 配的给该终端使用的增强型专用传输信道资源。
步驟 290, 节点 B 以长传输时间间隔进行增强型专用传输信道的调度 来接收增强型专用传输信道数据。 数据接收结束后, 增强型专用传输信道 资源被 放。
实施例三
本示例侧重描述了网络侧(无线网络控制器等网元)的处理过程。 图 3 为本发明上行调度方法实施例二的流程图, 如图 3 所示, 本示例上行调度 方法具体包括以下步驟:
步驟 310 ,无线网络控制器决定在指定小区中进行公共增强型专用传输 信道操作的配置。 具体配置包括: 承载增强型专用传输信道的物理随机接 入信道的前导部分的可用前导签名的可用前导签名子集 A和可用前导签名 子集 B。 其中, 使用可用前导签名子集 A指示采用短传输时间间隔的间隔 周期进行增强型专用传输信道的调度来发送或者接收增强型专用传输信道 数据。 使用可用前导签名子集 B指示采用长传输时间间隔的间隔周期进行 增强型专用传输信道的调度来发送或者接收增强型专用传输信道数据。
步驟 320, 无线网络控制器发送 NBAP信令给节点 B, 通知节点 B在 指定小区中进行公共增强型专用传输信道操作的配置。 NBAP信令包括如 下信息: 承载增强型专用传输信道的物理随机接入信道的前导部分的可用 前导签名的可用前导签名子集 A和可用前导签名子集 B。 使用可用前导签 名子集 A则指示采用短传输时间间隔的间隔周期进行增强型专用传输信道 的调度来发送或者接收增强型专用传输信道数据。使用可用前导签名子集 B 则指示采用长传输时间间隔的间隔周期进行增强型专用传输信道的调度来 发送或者接收增强型专用传输信道数据。
步驟 330, 无线网络控制器在指定小区中发送 RRC信令给终端, RRC 信令中包含如下信息: 承载增强型专用传输信道的物理随机接入信道的前 导部分的可用前导签名的可用前导签名子集 A和可用前导签名子集 B。 其
中, 使用可用前导签名子集 A指示采用短传输时间间隔的间隔周期进行增 强型专用传输信道的调度来发送或者接收增强型专用传输信道数据。 使用 可用前导签名子集 B指示采用长传输时间间隔的间隔周期进行增强型专用 传输信道的调度来发送或者接收增强型专用传输信道数据。
本发明中, 无线网络控制器可以分别向基站和终端发送 NBAP信令及 RRC信令来通知 PRACH前导签名的划分方式, 也可以首先通过 NBAP信 令通知基站, 再由基站通知给终端。 由于实现上述通知是容易实现的, 本 发明不再赘述其具体实现方式。
实施例四
图 4为本发明上行调度方法实施例二的流程图, 如图 4所示, 本示例 上行调度方法具体包括以下步驟:
步驟 410,无线网络控制器决策在指定小区中进行公共增强型专用传输 信道操作的配置。 具体配置包括: 承载增强型专用传输信道的物理随机接 入信道的前导部分的可用前导签名的可用前导签名子集 A和可用前导签名 子集 B。 其中, 使用可用前导签名子集 A指示采用短传输时间间隔的间隔 周期进行增强型专用传输信道的调度来发送或者接收增强型专用传输信道 数据。 使用可用前导签名子集 B指示采用长传输时间间隔的间隔周期进行 增强型专用传输信道的调度来发送或者接收增强型专用传输信道数据。
步驟 420, 无线网络控制器发送 NBAP信令给节点 B, 通知节点 B在 指定小区中进行公共增强型专用传输信道操作的配置。 NBAP信令包括如 下信息: 承载增强型专用传输信道的物理随机接入信道的前导部分的可用 前导签名的可用前导签名子集 A和可用前导签名子集 B。
节点 B保存上述信息。
步驟 430, 终端驻留在此指定小区中, 且处于小区前向接入信道状态。 终端接收此指定小区中由无线网络控制器发送的 RRC信令, 从中获得如下
信息: 承载增强型专用传输信道的物理随机接入信道的前导部分的可用前 导签名的可用前导签名子集 A和可用前导签名子集 B。
终端保存上述信息。
步驟 440,终端决定使用短传输时间间隔进行增强型专用传输信道的调 度来发送增强型专用传输信道数据。
步驟 450, 终端试图在此指定小区中发起上行随机接入。终端在可用前 导签名子集 A中随机选择一个前导签名构建 PRACH前导, 进行上行随机 接入。
步驟 460, 节点 B在此指定小区中接收到终端发起的物理随机接入信 道前导。
步驟 470, 节点 B解析 PRACH前导中的前导签名, 判断该前导签名属 于可用前导签名子集 A, 节点 B记录此终端使用短传输时间间隔。
步驟 480, 节点 B通过捕获指示信道发送正向确认, 以及由节点 B分 配的给该终端使用的增强型专用传输信道资源。 终端下行接收到来自捕获 指示信道的正向确认, 以及由节点 B分配的给该终端使用的增强型专用传 输信道资源。
步驟 490,终端以短传输时间间隔进行增强型专用传输信道的调度来发 送增强型专用传输信道数据。 节点 B 以短传输时间间隔进行增强型专用传 输信道的调度来接收增强型专用传输信道数据。 数据接收结束后, 增强型 专用传输信道资源被释放。
步驟 500,终端决定使用长传输时间间隔进行增强型专用传输信道的调 度来发送增强型专用传输信道数据。
步驟 510, 终端在此指定小区中发起上行随机接入。 终端在可用前导签 名子集 B中随机选择一个前导签名构建 PRACH前导, 进行上行随机接入。
步驟 520, 节点 B在此指定小区中接收到终端发起的物理随机接入信
道前导。
步驟 530, 节点 B解析 PRACH前导中的前导签名, 判断该前导签名属 于可用前导签名子集 B, 节点 B记录此终端使用长传输时间间隔。
步驟 540, 节点 B通过捕获指示信道发送正向确认, 以及由节点 B分 配的给该终端使用的增强型专用传输信道资源。 终端下行接收到来自捕获 指示信道的正向确认, 以及由节点 B分配的给该终端使用的增强型专用传 输信道资源。
步驟 550,终端以长传输时间间隔进行增强型专用传输信道的调度来发 送增强型专用传输信道数据。 节点 B 以长传输时间间隔进行增强型专用传 输信道的调度来接收增强型专用传输信道数据。 数据接收结束后, 增强型 专用传输信道资源被释放。
图 5为本发明终端的组成结构示意图, 如图 5所示, 本发明终端包括 接收单元 50、 确定单元 51和随机接入单元 52, 其中,
接收单元 50, 用于接收网络侧发送的将 PRACH的前导签名至少分为 用于指示短传输时间间隔方式调度和长传输时间间隔方式调度的两种类型 的通知;
确定单元 51 , 用于确定上行随机接入时所使用的短传输时间间隔方式 或长传输时间间隔调度方式;
随机接入单元 52, 用于选用与所确定的调度方式对应的前导签名构建 PRACH的前导, 进行上行随机接入。
在图 5所示的结构的基础上, 本发明的终端还包括:
发送单元(未图示), 用于在所述接收单元接收到所述终端所在小区所 属的基站发送的正向确认后, 使用所确定的调度方式进行 E-DCH资源的调 度来发送增强型专用传输信道数据。
本领域技术人员应当理解, 图 5 所示的终端主要是用于前述实施例一
至实施例四中, 图 5 所示的终端中各处理单元的功能可参照前述实施例一 至实施例四的相关描述而理解, 各处理单元的功能可通过运行于处理器上 的程序而实现, 也可通过具体的逻辑电路而实现。
图 6为本发明基站的组成结构示意图, 如图 6所示, 本发明的基站包 括接收单元 60、 侦听单元 61和发送单元 62, 其中,
接收单元 60, 用于接收网络侧发送的将 PRACH的前导签名至少分为 用于指示短传输时间间隔方式调度和长传输时间间隔方式调度的两种类型 的通知;
侦听单元 61 , 用于侦听终端的 PRACH, 根据所述 PRACH中的前导签 名确定当前的调度方式;
发送单元 62, 用于向终端发送正向确认;
上述接收单元 60进一步利用所确定的调度方式进行 E-DCH资源的调 度来接收增强型专用传输信道数据。
本领域技术人员应当理解, 图 6所示的基站主要是用于前述实施例一 至实施例四中, 图 6所示的基站中各处理单元的功能可参照前述实施例一 至实施例四的相关描述而理解, 各处理单元的功能可通过运行于处理器上 的程序而实现, 也可通过具体的逻辑电路而实现。
本发明还记载了一种上行调度系统, 包括网络侧、 终端和所述终端所 在小区所属的基站; 其中,
网络侧,用于将 PRACH的前导签名至少分为用于指示短传输时间间隔 方式调度和长传输时间间隔方式调度的两种类型, 并通知所述终端及所述 终端所在小区所属的基站;
终端, 用于确定上行随机接入时所使用的短传输时间间隔方式或长传 输时间间隔调度方式, 并选用与所确定的调度方式对应的前导签名构建 PRACH的前导, 进行上行随机接入。
上述网络侧为无线网络控制器;
上述无线网络控制器进一步用于, 分别通知所述终端及所述终端所在 小区所属的基站, 或者, 通过所述终端所在小区所属的基站通知所述终端。
上述终端进一步用于, 在接收到所述终端所在小区所属的基站发送的 正向确认后, 使用所确定的调度方式进行 E-DCH资源的调度而发送增强型 专用传输信道数据。
上述终端所在小区所属的基站进一步用于, 侦听所述终端的 PRACH, 根据所述 PRACH中的前导签名确定当前的调度方式,向所述终端发送正向 确认; 随后利用所确定的调度方式进行 E-DCH资源的调度而接收增强型专 用传输信道数据。
本领域技术人员应当理解, 本发明的上行调度系统是为实现前述上行 调度方法而实现的, 在网络结构上, 本发明并无改动, 仅是上述的各网元 所实现的功能与现有网络中的相关网元所实现的功能有所不同而已。 具体 的, 可参照上述实施例一至实施例四的相关描述理解本发明的上行调度系 统。
以上所述, 仅为本发明的较佳实施例而已, 并非用于限定本发明的保 护范围。
工业实用性
通过本发明,将 PRACH的前导签名至少分为用于指示短传输时间间隔 方式调度和长传输时间间隔方式调度的两种类型, 实现了终端在进行上行 数据调度时, 既可以使用短传输时间间隔方式的调度, 也可以用于长传输 时间间隔方式的调度。
Claims
1、 一种上行调度方法, 其特征在于, 将物理随机接入信道 PRACH的 前导签名至少分为用于指示短传输时间间隔方式调度和长传输时间间隔方 式调度的两种类型; 所述方法还包括:
终端确定上行随机接入时所使用的短传输时间间隔方式或长传输时间 间隔调度方式,并选用与所确定的调度方式对应的前导签名构建 PRACH的 前导, 进行上行随机接入。
2、 根据权利要求 1所述的方法, 其特征在于, 所述方法还包括: 网络侧将 PRACH 的可用前导签名分为用于指示短传输时间间隔方式 调度和长传输时间间隔方式调度的两种类型, 并通知所述终端及所述终端 所在小区所属的基站。
3、 根据权利要求 2所述的方法, 其特征在于, 所述网络侧为无线网络 控制器;
所述通知所述终端及所述终端所在小区所属的基站, 为:
所述无线网络控制器分别通知所述终端及所述终端所在小区所属的基 站, 或者, 所述无线网络控制器通过所述终端所在小区所属的基站通知所 述终端。
4、 根据权利要求 2所述的方法, 其特征在于, 所述方法还包括: 所述终端接收到所述终端所在小区所属的基站发送的正向确认后, 使 用所确定的调度方式调度承载待发送上行数据的资源, 进行上行数据发送。
5、 根据权利要求 4所述的方法, 其特征在于, 所述方法还包括: 所述终端所在小区所属的基站侦听所述 PRACH, 根据所述 PRACH中 的前导签名确定当前的调度方式, 向所述终端发送正向确认; 随后利用所 确定的调度方式接收上行数据。
6、 根据权利要求 5所述的方法, 其特征在于, 所述利用所确定的调度 方式接收上行数据, 为:
所述基站使用短传输时间间隔的间隔周期进行增强型专用传输信道
E-DCH资源的调度来接收增强型专用传输信道数据;
或者, 所述基站使用长传输时间间隔的间隔周期进行 E-DCH资源的调 度来接收增强型专用传输信道数据。
7、 根据权利要求 1至 5任一项所述的方法, 其特征在于, 所述短传输 时间间隔调度方式为, 所述终端使用短传输时间间隔的间隔周期进行 E-DCH资源的调度来发送增强型专用传输信道数据;
所述长传输时间间隔调度方式为, 所述终端使用长传输时间间隔的间 隔周期进行 E-DCH资源的调度来发送增强型专用传输信道数据。
8、 一种终端, 其特征在于, 包括接收单元、确定单元和随机接入单元, 其中, 指示短传输时间间隔方式调度和长传输时间间隔方式调度的两种类型的通 知;
确定单元, 用于确定上行随机接入时所使用的短传输时间间隔方式或 长传输时间间隔调度方式;
随机接入单元, 用于选用与所确定的调度方式对应的前导签名构建 PRACH的前导, 进行上行随机接入。
9、 根据权利要求 8所述的终端, 其特征在于, 所述终端还包括: 发送单元, 用于在所述接收单元接收到所述终端所在小区所属的基站 发送的正向确认后, 使用所确定的调度方式进行 E-DCH资源的调度来发送 增强型专用传输信道数据。
10、 一种基站, 其特征在于, 包括接收单元、 侦听单元和发送单元, 其中, 指示短传输时间间隔方式调度和长传输时间间隔方式调度的两种类型的通 知;
侦听单元, 用于侦听终端的 PRACH , 根据所述 PRACH中的前导签名 确定当前的调度方式;
发送单元, 用于向终端发送正向确认;
所述接收单元进一步利用所确定的调度方式进行 E-DCH资源的调度来 接收增强型专用传输信道数据。
11、 一种上行调度系统, 包括网络侧、 终端和所述终端所在小区所属 的基站; 其特征在于,
网络侧,用于将 PRACH的前导签名至少分为用于指示短传输时间间隔 方式调度和长传输时间间隔方式调度的两种类型, 并通知所述终端及所述 终端所在小区所属的基站;
终端, 用于确定上行随机接入时所使用的短传输时间间隔方式或长传 输时间间隔调度方式, 并选用与所确定的调度方式对应的前导签名构建 PRACH的前导, 进行上行随机接入。
12、 根据权利要求 11所述的系统, 其特征在于, 所述网络侧为无线网 络控制器;
所述无线网络控制器进一步用于, 分别通知所述终端及所述终端所在 小区所属的基站, 或者, 通过所述终端所在小区所属的基站通知所述终端。
13、根据权利要求 11所述的系统, 其特征在于, 所述终端进一步用于, 在接收到所述终端所在小区所属的基站发送的正向确认后, 使用所确定的 调度方式进行 E-DCH资源的调度来发送增强型专用传输信道数据。
14、 根据权利要求 13所述的系统, 其特征在于, 所述终端所在小区所 属的基站进一步用于, 侦听所述终端的 PRACH, 根据所述 PRACH中的前 导签名确定当前的调度方式, 向所述终端发送正向确认; 随后利用所确定 的调度方式进行 E-DCH资源的调度来接收增强型专用传输信道数据。
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