WO2009092267A1 - 一种发射前导签名的方法、系统和装置 - Google Patents

一种发射前导签名的方法、系统和装置 Download PDF

Info

Publication number
WO2009092267A1
WO2009092267A1 PCT/CN2008/073816 CN2008073816W WO2009092267A1 WO 2009092267 A1 WO2009092267 A1 WO 2009092267A1 CN 2008073816 W CN2008073816 W CN 2008073816W WO 2009092267 A1 WO2009092267 A1 WO 2009092267A1
Authority
WO
WIPO (PCT)
Prior art keywords
preamble
indication
preamble signature
signature
retry
Prior art date
Application number
PCT/CN2008/073816
Other languages
English (en)
French (fr)
Inventor
Chuanfeng He
Original Assignee
Huawei Technologies Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Publication of WO2009092267A1 publication Critical patent/WO2009092267A1/zh

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access, e.g. scheduled or random access
    • H04W74/04Scheduled or contention-free access
    • H04W74/06Scheduled or contention-free access using polling
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access, e.g. scheduled or random access
    • H04W74/08Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method, system and apparatus for transmitting a preamble signature. Background technique
  • All available uplink E-DCH resources are broadcast by system messages, where each set of uplink E-DCH resources corresponds to a resource index value.
  • the physical layer needs to select a uplink access slot, signature, and preamble transmit power to transmit a preamble, if the NodeB (Node B, If the node B) detects the preamble signature and the E-DCH resource corresponding to the preamble signature is still idle, the NodeB returns an ACK (Acknowledge) acquisition indication to the UE through the AICH (Acquisition Indicator Channel).
  • the UE may use the uplink E-DCH resource corresponding to the preamble signature to perform subsequent data transmission.
  • the NodeB returns a NACK acquisition indication through the AICH channel. After receiving the NACK acquisition indication, the UE will exit the current enhanced RACH random access procedure. In order to send the pending data in the buffer, the MAC layer of the UE can only trigger the next new enhanced RACH random access procedure again.
  • the RACH random access procedure is repeatedly triggered due to the E-DCH resource problem, which results in a higher blocking probability.
  • Embodiments of the present invention provide a method, system, and apparatus for transmitting a preamble signature to improve efficiency of E-DCH resource allocation.
  • an embodiment of the present invention provides a method for transmitting a preamble signature, including: receiving, by a user equipment, a retry indication returned by a base station, where the retry indication is previously transmitted by the base station in the UE.
  • the enhanced dedicated transport channel corresponding to the preamble signature is generated when the E-DCH resource allocation is completed;
  • the UE transmits the preamble signature again according to the retry indication.
  • the embodiment of the present invention further provides a system for transmitting a preamble signature, where: the base station is configured to generate a retry indication when the E-DCH resource corresponding to the preamble signature transmitted by the user equipment UE is completed. The retry indication is returned to the UE.
  • the embodiment of the present invention further provides a base station, including:
  • an indication generating module configured to generate a retry indication when the E-DCH resource corresponding to the preamble signature transmitted by the user equipment UE is completed;
  • the embodiment of the present invention further provides a user equipment (UE), including: an indication receiving module, configured to receive a retry indication returned by the base station, where the retry indication is preceded by a previous transmission by the base station in the UE Generated when the E-DCH resource corresponding to the signature is allocated; And a preamble transmitting module, configured to retransmit the preamble signature according to the retry indication received by the indication receiving module.
  • UE user equipment
  • the embodiment of the present invention has the following advantages: According to the embodiment of the present invention, the UE transmits the preamble signature again according to the retry indication returned by the base station, thereby improving the efficiency of E-DCH resource allocation in the random access process. Reduced the probability of blocking. DRAWINGS
  • FIG. 2 is a flowchart of a method for transmitting a preamble signature according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of an enhanced RACH physical random access procedure with reduced blocking probability according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram of an E-DCH resource pool that is not independent of each other according to an embodiment of the present invention
  • FIG. 5 is a structural diagram of a system for transmitting a preamble signature according to an embodiment of the present invention. detailed description
  • the relationship between the preamble signature and the E-DCH resource index can be either "one to one" or "one to many", and each preamble signature can be considered to correspond to one E-DCH.
  • Resource pools are independent of each other, as shown in Figure 1. If all the E-DCH resources in the resource pool corresponding to a certain preamble signature have been allocated to other UEs, even if there are still idle E-DCH resources in the resource pool corresponding to other preamble signatures, there is no way to enhance the RACH randomly. Assigned during the access process.
  • the embodiment of the present invention provides a method for transmitting a preamble signature.
  • the base station returns a retry indication to the UE, and the UE transmits a preamble signature according to the retry indication.
  • the retry indication may be generated by the base station when the enhanced dedicated transport channel E-DCH resource corresponding to the preamble signature transmitted by the UE is completed.
  • the UE in the embodiment of the present invention can retransmit the preamble signature according to the retry indication when the current pilot signature fails in a random access procedure, thereby improving the random access process.
  • the efficiency of E-DCH resource allocation significantly reduces the blocking probability.
  • the delay of the RACH random access procedure can be significantly reduced.
  • the base station mentioned in the embodiment of the present invention may be an entity such as a NodeB.
  • a flowchart of a method for transmitting a preamble signature includes the following steps:
  • Step S201 The UE receives a retry indication returned by the base station.
  • the base station if all E-DCH resources corresponding to the preamble signature transmitted by the UE have been allocated to other UEs, but the E-DCH resources corresponding to other preamble signatures are still idle, the base station generates Retry (RETRY) indication and return the retry indication to the UE.
  • the retry indication may be indicated by a base station through an AICH channel, such as a resource index value, which is used to indicate that the base station returns neither an ACK acquisition indication nor a NACK acquisition indication but a retry indication.
  • all E-DCH resources corresponding to the preamble signature transmitted by the UE have been allocated to other UEs, and all E-DCH resources corresponding to all preamble signatures or most preamble signatures are allocated to other UEs.
  • the base station returns a NACK acquisition indication.
  • Step S202 The UE transmits the preamble signature again according to the retry indication.
  • the UE After the UE receives the retry indication returned by the base station, it does not exit the current enhancement.
  • the RACH random access procedure but transmits the preamble signature again according to the retry indication.
  • the UE may specifically perform the following steps, as shown in FIG. 3,
  • the UE In the downlink access slot corresponding to the selected uplink access slot, if the UE detects a retry indication corresponding to the selected preamble signature, the UE
  • the UE decrementing the value of the preamble retransmission counter by one; e) If the value of the current pilot retransmission counter is greater than 0, that is, when the number of preamble retransmissions has not reached the maximum number of retransmissions, the UE transmits a selected preamble signature again based on the preamble transmission power of the last transmitted preamble signature. When the value of the current retransmission counter is less than 0, that is, when the number of preamble retransmissions has reached the maximum number of retransmissions, the UE needs to report the status information of the NACK received on the AICH to the MAC, and exit the current physical random access procedure.
  • the preamble signature is transmitted again that the E-DCH resource pools corresponding to each preamble signature are no longer independent of each other, but a connection is established, as shown in FIG. If all the E-DCH resources in the resource pool corresponding to one preamble signature have been allocated to other UEs, and there are still idle E-DCH resources in the resource pool corresponding to other preamble signatures, then the RACH random access procedure is enhanced. There may still be E-DCH resources allocated to the UE. Therefore, the UE can retransmit the preamble signature according to the retry indication when the preamble signature fails during a random access procedure, thereby improving the efficiency of E-DCH resource allocation in the random access process and reducing the blocking probability.
  • a structural diagram of a system for transmitting a preamble signature includes: a base station (NodeB) 1 configured to return a retry indication, where the retry indication is preceded by a base station 1 transmitting in the UE2
  • the E-DCH resource corresponding to the signature is allocated, but the E-DCH resource corresponding to the other preamble signature is still idle, and may be specifically indicated by the base station 1 by the capture indication returned by the AICH;
  • the user equipment UE2 is configured to receive a retry indication returned by the base station 1, and transmit a preamble signature according to the retry indication.
  • the foregoing base station 1 may return a retransmission indication when the E-DCH resource corresponding to the preamble signature transmitted by the UE2 is completed.
  • the base station 1 includes: an indication generating module 11 configured to generate a retry indication when the E-DCH resource corresponding to the preamble signature transmitted by the UE2 is completed.
  • the indication returning module 12 is configured to return the retry indication generated by the indication generating module 11 to the UE2.
  • the instruction generating module 11 also needs to correspond to the preamble signature previously transmitted by the UE2.
  • the E-DCH resource allocation is completed, but when the E-DCH resource corresponding to other preamble signatures is still idle, a retransmission indication is generated.
  • the UE2 includes: an indication receiving module 21, configured to receive a retry indication returned by the base station 1, and a preamble transmitting module 22, configured to retransmit the preamble signature according to the retry indication received by the indication receiving module 21.
  • the UE2 further includes: a slot selection module 23, configured to: after receiving the retry indication, the receiving module 21, select an access slot in the RACH subchannel set of the enhanced RACH;
  • the preamble selection module 24 is configured to: after the slot selection module 23 selects an access slot, randomly select a preamble signature for retransmission in the enhanced RACH signature set, and provide the preamble signature to the preamble transmitting module 22;
  • the counter setting module 25 is configured to: after the preamble selection module 24 selects the preamble signature, decrement the value of the preamble retransmission counter by one, and notify the preamble transmitting module 22 to transmit the selection of the preamble selection module 24 when the value of the current retransmission counter is greater than zero. Preamble signature. .
  • the UE2 further includes: a status reporting module 26, configured to report the NACK status information received on the AICH to the MAC when the number of times of the current retransmission has reached the maximum number of retransmissions, and exit the current physical random access procedure.
  • a status reporting module 26 configured to report the NACK status information received on the AICH to the MAC when the number of times of the current retransmission has reached the maximum number of retransmissions, and exit the current physical random access procedure.
  • the base station 1 returns a retry indication to the UE2, and the UE2 transmits the preamble signature again according to the retry indication.
  • the efficiency of E-DCH resource allocation is improved, and the blocking probability is significantly reduced.
  • the delay of the RACH random access procedure can be significantly reduced.
  • the present invention can be implemented by hardware, or can be implemented by means of software plus necessary general hardware platform, and the technical solution of the present invention. It can be embodied in the form of a software product that can be stored in a non-volatile storage medium (which can be a CD-ROM, a USB flash drive, a mobile hard disk, etc.), including a number of instructions for making a computer device (may Is a personal computer, server, or network device, etc.) The method described in various embodiments of the present invention.
  • a non-volatile storage medium which can be a CD-ROM, a USB flash drive, a mobile hard disk, etc.
  • a computer device may Is a personal computer, server, or network device, etc.

Description

一种发射前导签名的方法、 系统和装置 本申请要求于 2008 年 1 月 4 日提交中国专利局, 申请号为 200810001325.6, 发明名称为 "一种再次发射前导签名的方法、 系统 和装置" 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, 特别涉及一种发射前导签名的方法、 系统和装置。 背景技术
在 3GPP ( 3rd Generation Partnership Project, 第三代移动通信伙 伴计划) WCDMA ( Wideband Code Division Multiple Access, 宽带码 分多址接入 ) R8版本中, 对于非专有态下的 UE ( User Equipment, 用户终端), 为了降低上行传输时延、 提高上行传输速率, 引入了增 强 RACH ( Random Access Channel, 随机接入信道)这一新特性。 增 强 RACH随机接入过程使用 E-DCH ( Enhanced Dedicated Channel, 增 强专用传输信道 )代替 RACH实现上行传输。
所有可用的上行 E-DCH资源通过系统消息进行广播,其中每一套 上行 E-DCH资源对应一个资源索引值。 当 MAC ( Medium Access Control, 媒体接入控制)层触发了增强 RACH物理随机接入过程后, 物理层需要选定上行接入时隙、 签名和前导发射功率发射一个前导, 如果 NodeB ( Node B, 节点 B )检测到前导签名且该前导签名所对应 的 E-DCH资源仍有空闲, 则 NodeB通过 AICH ( Acquisition Indicator Channel, 捕获指示信道)返回一个 ACK ( Acknowledge, 允许)捕获 指示给 UE。 接下来, UE可以使用该前导签名所对应的上行 E-DCH资 源来进行后续的数据发送。 但如果和最后发射的前导签名相对应的所有 E-DCH资源都已经 分配给其他 UE, 则 NodeB通过 AICH信道返回 NACK捕获指示。 UE收 到 NACK捕获指示后, 将会退出当前的增强 RACH随机接入过程。 为 了发送緩存中的待发数据, UE的 MAC层只能再次触发下一次新的增 强 RACH随机接入过程。
而 UE在发起增强 RACH随机接入过程中,因为 E-DCH资源问题而 重复触发 RACH随机接入过程, 会导致较高的阻塞概率。 发明内容
本发明实施例提供一种发射前导签名的方法、 系统和装置, 以实 现提高 E-DCH资源分配的效率。
为达到上述目的,本发明实施例一方面提供一种发射前导签名的 方法, 包括: 用户设备 UE接收基站返回的重试指示, 所述重试指示 由所述基站在所述 UE前一次发射的前导签名对应的增强专用传输信 道 E-DCH资源分配完毕时生成;
所述 UE根据所述重试指示再次发射前导签名。
另一方面,本发明实施例还提供一种发射前导签名的系统,包括: 基站,用于在用户设备 UE前一次发射的前导签名对应的 E-DCH 资源分配完毕时, 生成重试指示, 将所述重试指示返回给 UE。
再一方面, 本发明实施例还提供一种基站, 包括:
指示生成模块, 用于在用户设备 UE前一次发射的前导签名对应 的 E-DCH资源分配完毕时, 生成重试指示;
指示返回模块,用于将所述指示生成模块生成的重试指示返回给
UE。
再一方面, 本发明实施例还提供一种用户设备 UE, 包括: 指示接收模块, 用于接收基站返回的重试指示, 所述重试指示由 所述基站在所述 UE前一次发射的前导签名对应的 E-DCH资源分配 完毕时生成; 前导发射模块,用于根据所述指示接收模块接收的重试指示再次 发射前导签名。
与现有技术相比, 本发明实施例具有以下优点: 通过本发明实施 例, UE根据基站返回的重试指示, 再次发射前导签名, 提高了随机 接入过程中 E-DCH资源分配的效率, 降低了阻塞概率。 附图说明
图 1为现有技术各自独立的 E-DCH资源池的示意图;
图 2为本发明实施例发射前导签名的的方法的流程图; 图 3为本发明实施例降低了阻塞概率的增强 RACH物理随机接 入过程的示意图;
图 4为本发明实施例不再各自独立的 E-DCH资源池的示意图; 图 5为本发明实施例发射前导签名的的系统的结构图。 具体实施方式
在实现本发明的过程中, 发明人发现, 前导签名和 E-DCH资源 索引的关系既可以是 "一对一" 也可以是 "一对多", 可以认为每一 个前导签名对应一个 E-DCH资源池, 但这些资源池是相互独立的, 如图 1所示。 如果某一个前导签名对应的资源池中的所有 E-DCH资 源都已经分配给了其他 UE, 即使其他前导签名对应的资源池中仍然 有空闲 E-DCH资源, 也没有办法在本次增强 RACH随机接入过程中 分配。
为此, 本发明实施例提供一种发射前导签名的的方法, 通过本发 明实施例, 基站向 UE返回重试指示, UE根据该重试指示发射前导 签名。 其中, 该重试指示具体可以由所述基站在所述 UE前一次发射 的前导签名对应的增强专用传输信道 E-DCH资源分配完毕时生成。
本发明实施例的 UE能够在一次随机接入过程中, 当前导签名发 射失败时, 根据重试指示再次发射前导签名, 提高了随机接入过程中 E-DCH资源分配的效率, 显著降低了阻塞概率, 同时, 增强 RACH 随机接入过程的时延也可以被显著的降低。本发明实施例中提到的基 站可以为 NodeB等实体。
如图 2所示, 为本发明实施例发射前导签名的的方法的流程图, 包括以下步骤:
步骤 S201 , UE接收基站返回的重试指示。
在本发明实施例中, 如果 UE前一次发射的前导签名相对应的所 有 E-DCH资源都已经分配给了其他 UE,但是与其他前导签名相对应 的 E-DCH资源仍有空闲, 则基站生成重试(RETRY )指示, 并将该 重试指示返回给 UE。 该重试指示可以由基站通过 AICH信道返回的 捕获指示, 例如资源索引值表示, 该捕获指示用来表示基站返回的既 不是 ACK捕获指示也不是 NACK捕获指示而是重试指示。
优选地, 当该 UE前一次发射的前导签名相对应的所有 E-DCH 资源都已经分配给了其他 UE, 并且所有前导签名或大多数前导签名 对应的所有 E-DCH资源都分配给了其他 UE时, 基站返回 NACK捕 获指示。
步骤 S202, UE根据重试指示再次发射前导签名。
在 UE 收到基站返回的重试指示后, 并不会退出当前的增强
RACH随机接入过程, 而是根据该重试指示再次发射前导签名。
例如, UE具体可以进行如下步骤, 如图 3所示,
在和选定的上行接入时隙相对应的下行接入时隙中, 如果 UE检 测到与选定的前导签名相对应的重试指示, 则 UE
a )在增强 RACH的可用 RACH子信道集合中, 选择下一个可用 的接入时隙;
b )在增强 RACH的可用签名集合中随机选择一个用于再次发射 的前导签名, 当然, 本领域普通技术人员可以想到, 也可以采用其他 方法进行前导签名选择;
c )指令前导发射功率不再继续攀升;
d )将前导重传计数器的值减 1; e ) 当前导重传计数器的值大于 0, 即前导重传次数尚未达到最 大重传次数时, 则 UE基于上次发射前导签名的前导发射功率, 再次 发射一个选择的前导签名。 当前导重传计数器的值小于 0, 即前导重 传次数已达到最大重传次数时, UE需要向 MAC上报 AICH上收到 NACK的状态信息, 并退出当前的物理随机接入过程。
由上述再次发射前导签名的方法可以看出,每一个前导签名对应 的 E-DCH资源池之间不再是相互独立的, 而是建立了联系, 如图 4 所示。 如果一个前导签名对应的资源池中的所有 E-DCH资源都已经 分配给了其他 UE, 而其他前导签名对应的资源池中仍然有空闲 E-DCH 资源, 那么在本次增强 RACH 随机接入过程中仍然可以有 E-DCH资源分配给 UE。 因此, UE能够在一次随机接入过程中, 当 前导签名发射失败时, 根据重试指示再次发射前导签名, 提高了随机 接入过程中 E-DCH资源分配的效率, 降低阻塞概率。 同时, 也可显 著降低增强 RACH随机接入过程的时延。 如图 5所示, 为本发明实施例发射前导签名的的系统的结构图, 包括: 基站 (NodeB ) 1 , 用于返回重试指示, 该重试指示由基站 1 在 UE2前一次发射的前导签名对应的 E-DCH资源分配完毕,但是与 其他前导签名相对应的 E-DCH资源仍有空闲时生成, 具体可以由基 站 1通过 AICH返回的捕获指示表示;
用户设备 UE2, 用于接收基站 1返回的重试指示, 并根据重试指 示发射前导签名。
上述基站 1 具体还可以在 UE2 前一次发射的前导签名对应的 E-DCH资源分配完毕时, 即返回重传指示。
其中, 基站 1包括: 指示生成模块 11 , 用于在 UE2前一次发射 的前导签名对应的 E-DCH资源分配完毕时生成重试指示;
指示返回模块 12, 用于将指示生成模块 11生成的重试指示返回 给 UE2。
当然, 如果基站 1返回的重试指示是由基站 1在 UE2前一次发 射的前导签名对应的 E-DCH资源分配完毕, 但是与其他前导签名相 对应的 E-DCH资源仍有空闲时生成, 则上述指示生成模块 11 , 也就 要在 UE2前一次发射的前导签名对应的 E-DCH资源分配完毕,但是 与其他前导签名相对应的 E-DCH资源仍有空闲时,生成重传指示了。
其中, UE2包括: 指示接收模块 21 , 用于接收基站 1返回的重 试指示; 前导发射模块 22, 用于根据指示接收模块 21接收的重试指 示再次发射前导签名。
其中, UE2还包括: 时隙选择模块 23, 用于在指示接收模块 21 接收到重试指示之后, 在增强 RACH的 RACH子信道集合中选择接 入时隙;
前导选择模块 24, 用于在时隙选择模块 23选择接入时隙之后, 在增强 RACH的签名集合中随机选择一个用于再次发射的前导签名, 并将该前导签名提供给前导发射模块 22;
计数器设置模块 25 ,用于在前导选择模块 24选择前导签名之后, 将前导重传计数器的值减 1 , 当前导重传计数器的值大于 0时, 通知 前导发射模块 22发射前导选择模块 24选择的前导签名。。
其中, UE2还包括: 状态上报模块 26, 用于当前导重传次数已 达到最大重传次数时, 向 MAC上报 AICH上收到 NACK状态信息, 并退出当前的物理随机接入过程。
上述发射前导签名的的系统,基站 1向 UE2返回重试指示, UE2 根据该重试指示再次发射前导签名。 当 UE2发起增强 RACH随机接 入过程时, 提高了 E-DCH资源分配的效率, 显著降低了阻塞概率, 同时, 增强 RACH随机接入过程的时延也可以被显著的降低。
通过以上的实施方式的描述,本领域的技术人员可以清楚地了解 到本发明可以通过硬件实现,也可以可借助软件加必要的通用硬件平 台的方式来实现基于这样的理解,本发明的技术方案可以以软件产品 的形式体现出来, 该软件产品可以存储在一个非易失性存储介质(可 以是 CD-ROM, U盘, 移动硬盘等) 中, 包括若干指令用以使得一 台计算机设备(可以是个人计算机, 服务器, 或者网络设备等)执行 本发明各个实施例所述的方法。
总之, 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。 凡在本发明的精神和原则之内, 所作的任何修改、 等同替换、 改进等, 均应包含在本发明的保护范围之内。

Claims

权利要求
1、 一种发射前导签名的方法, 其特征在于, 包括:
用户设备 UE接收基站返回的重试指示, 所述重试指示由所述基 站在所述 UE 前一次发射的前导签名对应的增强专用传输信道 E-DCH资源分配完毕时生成;
所述 UE根据所述重试指示再次发射前导签名。
2、 如权利要求 1所述的方法, 其特征在于, 所述重试指示进一 步由所述基站在所述 UE 前一次发射的前导签名对应的资源分配完 毕、 并且其他前导签名对应的资源仍有空闲时生成。
3、 如权利要求 1所述的方法, 其特征在于, 所述重试指示由所 述基站通过捕获指示信道 AICH返回的捕获指示表示。
4、 如权利要求 1所述的方法, 其特征在于, 所述 UE根据所述 重试指示再次发射前导签名具体包括: 当前导重传次数尚未达到最大 重传次数时, 所述 UE根据所述重试指示再次发射前导签名。
5、 如权利要求 1所述的方法, 其特征在于, 在所述 UE接收基 站返回的重试指示之后,还包括:所述 UE在增强随机接入信道 RACH 的 RACH子信道集合中选择接入时隙, 在增强 RACH的签名集合中 选择一个用于再次发射的前导签名, 且将前导重传计数器的值减 1。
6、 如权利要求 4或 5所述的方法, 其特征在于,
所述前导重传次数尚未达到最大重传次数包括:所述前导重传计 数器的值大于 0,
和 /或,所述 UE根据所述重试指示再次发射前导签名包括: 所述 UE根据上次发射前导签名时的前导发射功率再次发射所述选择的前 导签名。
7、 一种基站, 其特征在于, 包括:
指示生成模块, 用于在用户设备 UE前一次发射的前导签名对应 的 E-DCH资源分配完毕时, 生成重试指示;
指示返回模块,用于将所述指示生成模块生成的重试指示返回给 UE。
8、 如权利要求 7所述的基站, 其特征在于,
所述指示生成模块, 用于在用户设备 UE前一次发射的前导签名 对应的 E-DCH资源分配完毕、 并且其他前导签名对应的资源仍有空 闲对应的 E-DCH资源分配完毕时, 生成重试指示。
9、 一种用户设备 UE, 其特征在于, 包括:
指示接收模块, 用于接收基站返回的重试指示, 所述重试指示由 所述基站在所述 UE前一次发射的前导签名对应的 E-DCH资源分配 完毕时生成;
前导发射模块,用于根据所述指示接收模块接收的重试指示再次 发射前导签名。
10、 如权利要求 9所述的 UE, 其特征在于, 所述指示接收模块, 用于接收基站返回的重试指示, 所述重试指示由所述基站在所述 UE 前一次发射的前导签名对应的 E-DCH资源分配完毕, 且与其他前导 签名相对应的 E-DCH资源仍有空闲时生成。
11、 如权利要求 9所述 UE, 其特征在于, 还包括:
时隙选择模块, 用于在所述指示接收模块接收到重试指示之后, 在增强 RACH的 RACH子信道集合中选择接入时隙;
前导选择模块, 用于在所述时隙选择模块选择接入时隙之后, 在 增强 RACH 的签名集合中选择一个用于再次发射的前导签名, 并将 所述前导签名提供给所述前导发射模块;
计数器设置模块, 用于在所述前导选择模块选择前导签名之后, 将前导重传计数器的值减 1 , 当所述前导重传计数器的值大于 0时, 通知所述前导发射模块发射所述前导选择模块选择的前导签名。
12、 一种发射前导签名的系统, 其特征在于, 包括:
基站,用于在用户设备 UE前一次发射的前导签名对应的 E-DCH 资源分配完毕时, 生成重试指示, 将所述重试指示返回给 UE。
PCT/CN2008/073816 2008-01-04 2008-12-29 一种发射前导签名的方法、系统和装置 WO2009092267A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2008100013256A CN101478827B (zh) 2008-01-04 2008-01-04 一种再次发射前导签名的方法、系统和装置
CN200810001325.6 2008-01-04

Publications (1)

Publication Number Publication Date
WO2009092267A1 true WO2009092267A1 (zh) 2009-07-30

Family

ID=40839444

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2008/073816 WO2009092267A1 (zh) 2008-01-04 2008-12-29 一种发射前导签名的方法、系统和装置

Country Status (2)

Country Link
CN (1) CN101478827B (zh)
WO (1) WO2009092267A1 (zh)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101990310A (zh) 2009-07-30 2011-03-23 华为技术有限公司 一种随机接入方法及其装置
US9014121B2 (en) * 2010-07-21 2015-04-21 Nokia Corporation Apparatus and method for acquisition of a common enhanced dedicated channel resource
KR20140054045A (ko) * 2011-07-14 2014-05-08 인터디지탈 패튼 홀딩스, 인크 M2m 통신에 대한 레인징 전력 제어 방법 및 장치
CN103582153A (zh) * 2012-08-03 2014-02-12 华为技术有限公司 随机接入的方法和用户设备
CN104838717B (zh) * 2013-06-06 2018-09-28 华为技术有限公司 一种随机接入的方法和装置
EP2869657A1 (en) * 2013-10-30 2015-05-06 Alcatel Lucent Allocation of Communication Resources for Device to Device Wireless Communication
CN108513309B (zh) * 2018-06-21 2021-10-01 重庆邮电大学 一种NB-IoT系统的接入拥塞控制方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1549475A (zh) * 2003-05-12 2004-11-24 北京三星通信技术研究有限公司 用于wcdma系统上行专用信道增强的快速随机接入方法
CN1649440A (zh) * 2004-01-26 2005-08-03 埃沃柳姆公司 检测接入蜂窝通信网络的请求的动态适应
CN101098186A (zh) * 2006-06-27 2008-01-02 中兴通讯股份有限公司 一种随机接入前导检测动态门限的方法
CN101098297A (zh) * 2006-06-30 2008-01-02 大唐移动通信设备有限公司 一种随机接入方法及导频码的扩展方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1549475A (zh) * 2003-05-12 2004-11-24 北京三星通信技术研究有限公司 用于wcdma系统上行专用信道增强的快速随机接入方法
CN1649440A (zh) * 2004-01-26 2005-08-03 埃沃柳姆公司 检测接入蜂窝通信网络的请求的动态适应
CN101098186A (zh) * 2006-06-27 2008-01-02 中兴通讯股份有限公司 一种随机接入前导检测动态门限的方法
CN101098297A (zh) * 2006-06-30 2008-01-02 大唐移动通信设备有限公司 一种随机接入方法及导频码的扩展方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"3rd Generation Partnership Project; Technical Specification Group Radio Access Network; hysical layer procedures(FDD) (Release 8)", 3GPP TS 25.214 V8.4.0, 18 December 2008 (2008-12-18) *

Also Published As

Publication number Publication date
CN101478827B (zh) 2011-09-14
CN101478827A (zh) 2009-07-08

Similar Documents

Publication Publication Date Title
CN201515499U (zh) 执行在cell_fach状态中的增强型随机接入过程的wtru
EP4044478A1 (en) Harq process management method and apparatus, terminal, and storage medium
US8411626B2 (en) Method and apparatus for handling UL-SCH transmission
TWI415414B (zh) 傳輸時間間隔集束機制轉換時之混合式自動重傳請求程序的方法及裝置
US11723020B2 (en) Method, terminal, and network device for communication using grant-free mode and grant mode
WO2009092267A1 (zh) 一种发射前导签名的方法、系统和装置
JP2016036165A (ja) データ伝送パラメータを動的に調整しh−arq処理を制御する方法および装置
CN102119501A (zh) Mac重置和重新配置
TW200917874A (en) Method and apparatus to allocate radio resources for transmitting a message part in an enhanced RACH
TW200814642A (en) Uplink access method of mobile communication system
JP2010045790A (ja) Ttiバンドルの再送を処理する方法及び通信装置
TW200947939A (en) Method and apparatus for performing a bundled transmission
TW200939685A (en) Method and apparatus for efficiently utilizing HARQ processes for semi-persistent and dynamic transmissions
CN104579602A (zh) 一种lte中的广播组播重传方法
WO2009100660A1 (zh) 一种随机接入的控制方法、系统及设备
WO2019033993A1 (en) IMPROVEMENTS IN OR RELATING TO UL EMISSION CONFIGURATION WITHOUT ALLOCATION AND RESOURCE GROUPING
US10334621B2 (en) Buffer status report
WO2010115299A1 (zh) 随机接入方法及其装置
WO2012058974A1 (zh) 一种随机接入方法及装置
WO2015062276A1 (zh) Tti集束的传输处理方法及装置、网络侧设备、ue
WO2017217397A1 (ja) 端末装置、基地局装置、通信方法、および、集積回路
WO2022161608A1 (en) Dynamic selection of transmission scheme
WO2022156554A1 (zh) 接入传输方法、网络侧设备、终端和存储介质
WO2017217400A1 (ja) 端末装置、基地局装置、通信方法、および、集積回路
WO2013071861A1 (zh) 一种发送数据块的方法及设备

Legal Events

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

Ref document number: 08871527

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 08871527

Country of ref document: EP

Kind code of ref document: A1