CN101640922A - Identification method of downlink component carrier wave in random access process and base station - Google Patents

Identification method of downlink component carrier wave in random access process and base station Download PDF

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CN101640922A
CN101640922A CN 200910005706 CN200910005706A CN101640922A CN 101640922 A CN101640922 A CN 101640922A CN 200910005706 CN200910005706 CN 200910005706 CN 200910005706 A CN200910005706 A CN 200910005706A CN 101640922 A CN101640922 A CN 101640922A
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random access
component carrier
downlink component
downlink
terminal
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CN 200910005706
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Chinese (zh)
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斌 喻
鹏 朱
鹏 郝
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中兴通讯股份有限公司
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Abstract

The invention provides an identification method of downlink component carrier wave in a random access process, comprising the following steps: dividing N downlink component carrier wave correspondingto the same uplink component carrier wave into M groups; notifying different physical random access channel (RACH) to configure parameters on downlink component carrier wave in different groups; aftera base station receives random access preamble (AP) sent by a terminal, judging the group to which the downlink component carrier wave synchronized with the terminal belongs according to the random AP; and sending random access response corresponding to the random AP only on the downlink component carrier wave in the group. The invention also provides the base station, and downlink component carrier wave is identified in the random access process. By identifying the downlink component carrier wave, the identifying method of the invention prevents random access response and competition solution from being sent to a plurality of downlink component carrier waves repeatedly, thereby avoiding waste of system resources.

Description

一种随机接入过程中下行分量载波的标识方法及一种基站 Of a random access procedure in a downlink component carrier and marking method of a base station

技术领域 FIELD

本发明涉及移动通信领域,特别涉及一种在LTE-A系统随机接入过程中下行分量载波的标识方法及一种基站。 The present invention relates to the field of mobile communications, particularly to a method and a base station for identifying a downlink component carrier in the LTE-A system random access procedure.

背景技术 Background technique

随机接入(Random Access)是终端开始和网络通信前的一种接入过程。 Random access (Random Access) is a terminal and an access procedure before beginning the communication network. 如图1所示,LTE (Long Term Evolution,长期演进)系统的随机接入过程先由终端在物理随机接入信道(Physical Random Access Channel,简称PRACH) 上向基站发送随积i接入前导(random access preamble)。 As shown, the random access procedure LTE (Long Term Evolution, LTE) system, first by a terminal to a base station transmits a physical random access channel (Physical Random Access Channel, abbreviated PRACH) on the access preamble with the product of i 1 ( random access preamble). 基站接收到终端发出的随机接入前导后,利用其中包含的序列,计算定时提前量,并给该终端分配用于下一步传输的信道资源(称作上行调度授权,UL grant)和临时C-RNTI( Cell Radio Network Temporary Identifier,小区无线网络临时标识号)。 The base station after receiving the random access preamble sent from the terminal, which comprises the use of a sequence, calculate the timing advance and allocation of channel resources for the next transmission to the terminal (referred to as an uplink scheduling grant, UL grant) and a temporary C- RNTI (cell radio network temporary identifier, cell radio network temporary identification number). 随^L^入前导标识号(Random Access Preamble Identifier),定时提前量、信道资源分配信息以及临时C-RNTI等经物理下行共享信道发送给该终端,称为随机接入响应(random access response)。 With ^ L ^ into a preamble identification number (Random Access Preamble Identifier), timing advance, channel resource allocation information and temporary C-RNTI and the like via a physical downlink shared channel transmitted to the terminal, known as a random access response (random access response) . 终端在收到随机4矣入响应后,按照随机接入响应中的信道资源分配信息UL grant在对应的上行信道资源上发送首次调度上行传输(First scheduled UL transmission,简写为scheduled transmission,又称为Message 3,简写为Msg.3),并根据随机接入响应中的临时C-RNTI对Msg.3加扰。 The terminal after receiving the response to the random 4 men, according to the channel resource allocation information of the random access response corresponding to the UL grant in the uplink channel resources transmits first scheduling uplink transmissions (First scheduled UL transmission, abbreviated as scheduled transmission, also known as Message 3, abbreviated as Msg.3), and temporary C-RNTI according to the random access response to Msg.3 scrambled. Msg.3根据触发该随机接入过程的事件不同而包含有不同的信息,包括比如RRC连接请求(RRC Connection Request),终端的C-RNTI等等。 Msg.3 different events triggering the random access procedure includes different information, including, for example an RRC connection request (RRC Connection Request), C-RNTI of the terminal and the like. 基站收到Msg.3后按其内容反馈随机接入的竟争解决(Contention Resolution)给终端,称为Message 4 ,简写为Msg.4 。 After the base station receives feedback Msg.3 competitive random access their content solution (Contention Resolution) to the terminal, called Message 4, abbreviated as Msg.4.

LTE系统中的资源分配以物理资源块(Physical Resource Block, PRB, 或简称为Resource Block,资源块)为单位, 一个PRB在频域上占12个子载波(subcarrier,或称为Resource Element,简称为RE,每个子载波为15kHz), Resource allocation in the LTE system to a physical resource block (Physical Resource Block, PRB, or simply a Resource Block, resource blocks) as a unit, a PRB representing 12 subcarriers (subcarrier in the frequency domain, or called Resource Element, simply referred to as RE, each subcarrier is 15kHz),

4在时域上占一个时隙,即在时域上占据7个常规循环前缀(Normal cyclic prefix,简称为Normal CP)或6个扩展循环前缀(Extended cyclic prefix, Extended CP)的SC誦FDMA( Single Carrier Frequency Division Multiple Access, 单载波频分复用)符号。 4 occupies one slot in the time domain, i.e. occupies 7 normal cyclic prefix in time domain (Normal cyclic prefix, simply referred to as Normal CP) or 6 extended cyclic prefix (Extended cyclic prefix, Extended CP) in the SC chant FDMA ( single carrier frequency division Multiple Access, single-carrier frequency division multiplexing) symbols. 如果上行系统带宽在频域上对应的RB总数为, If the uplink system bandwidth in the frequency domain corresponding to the total number of RB,

则RB的索引为O、 1..... A^-l, RE的索引为O、 1..... A^.A^-1,其 The RB index is O, 1 ..... A ^ -l, RE index is O, 1 ..... A ^ .A ^ -1, which

中,W^为一个RB在频域上所对应的子载波数。 In, W ^ RB is a number of subcarriers in the frequency domain corresponds. 以常规循环前缀为例,PRB 的结构如图2所示。 In a normal cyclic prefix, for example, the structure of PRB is shown in Fig.

在LTE系统中,物理随机接入信道配置参数包括(但不限于)(1)物理随机接入信道的第一条可用根序列的逻辑索引;(2)频域初始位置;(3) 物理随机接入信道的配置索引;(4)循环移位量;(5)循环移位限制标识。 In the LTE system, a physical random access channel configuration parameters include (but are not limited to) the first available root sequences (1) physical random access channel logical index; (2) the frequency domain initial position; (3) Physical Random access channel configuration index; (4) the cyclic shift amount; (5) identifies the cyclic shift limitations. 下面分别介绍这些Wt的含义。 The following describes the meaning of these Wt.

在LTE系统中,物理随机接入信道使用Zadoff-Chu(简称ZC)序列的循环移位序列作为前导(preamble),这些ZC序列又称为根序列,这些循环移位序列又称为零相关区域(Zero Correlation Zone,简称ZCZ)序列。 In the LTE system, a physical random access channel using Zadoff-Chu (referred ZC) sequence cyclic shift sequence as a preamble (Preamble), which is called the root ZC sequence and the sequence, which is also called a cyclic shift of zero correlation zone sequences (Zero Correlation Zone, referred to as of ZCZ) sequence. 终端开机之后首先进行下行同步,之后开始检测广播信道。 First, after the terminal is powered on for downlink synchronization, after the start of detection of a broadcast channel. 基站通过广播信道通知终端本小区PRACH信道可以使用的第一条ZC序列的逻辑索引以及循环移位的步长(即循环移位量),终端根据某种映射规则从第一条才艮序列逻辑索引得到该序列的物理索引,然后根据循环移位量以及一定的"循环移位限制规则"生成可用的ZCZ序列。 The base station notifies the terminal of the present cell PRACH channels through the broadcast channel may use the logical index of the first ZC sequence and step size of cyclic shift (i.e. cyclic shift amount), the terminal only according to a certain mapping rule from the first logic sequence Gen index obtained physical index of the sequence, and "cyclic shift restriction rule" according to certain cyclic shift amount and the generated available ZCZ sequences. 这些循环移位限制规则是由循环移位限制标识使能的。 These cyclic shift restriction rule is identified by a cyclic shift limitations enabled. 如果ZCZ序列的数量少于门限值T (LTE系统中,T = 64),则终端自动递增序列逻辑索引,利用下一条ZC序列继续生成ZCZ序列,直到ZCZ 序列的总数大于等于上述门限值为止。 If the number of ZCZ sequences is less than the threshold value T (LTE system, T = 64), the terminal automatically increments the index sequence logic, continue generating ZCZ sequences using the ZC sequence next, until the total number of ZCZ sequences is greater than equal to said threshold value until. 最后,终端在所有生成的可用ZCZ序列中随机选择一条作为随机接入前导(以下简称前导)发送。 Finally, the terminal randomly selected in all available ZCZ sequences generated as a random access preamble (hereinafter referred to as a preamble) transmitted.

在LTE系统中,PRACH信道在频域所占的第一个物理资源块(PRB) 的索引"^。贞"(即频域初始位置)是通过信令由基站通知终端的,取值范围 In the LTE system, the PRACH channel in the frequency domain occupied by the first index of a physical resource block (PRB) of "^. Ching" (i.e. the frequency domain starting position) by signaling by the base station notifies the terminal, in the range

在LTE系统中,物理随机接入信道的配置索引共有64种。 In the LTE system, a physical random access channel configuration index a total of 64 species. FDD模式的配置与TDD模式的配置不同,如表1和表2所示。 Configuration FDD mode and TDD mode different configuration, as shown in Table 1 and Table 2.

表IFDD模式物理随机接入信道的配置<table>table see original document page 6</column></row> <table><table>table see original document page 7</column></row> <table><table>table see original document page 8</column></row> <table> Table Configuration IFDD mode of the physical random access channel of the <table> table see original document page 6 </ column> </ row> <table> <table> table see original document page 7 </ column> </ row> <table> <table> table see original document page 8 </ column> </ row> <table>

随机接入过程中,竟争解决(Msg.4)用于解决基于竟争的随机接入冲突问题。 Random access procedure, to solve the competition (Msg.4) for solving the problem of competition based random access conflict. 一段时间内,当有多个终端在相同的物理随机接入信道上发送相同的随机4妄入前导时,这些终端可能会收到相同的随才几接入响应,进而在相同的上行信道资源上发送各自的Msg.3,此时冲突发生。 Period of time, when a plurality of terminals transmit the same preamble in the random 4 jump into the same physical random access channel, these terminals may receive the same access response with only a few, and thus the same uplink channel resources in sent on a respective Msg.3, this time conflict. 为解决此问题,基站在正确收到Msg.3后,会根据Msg.3的内容向该终端反馈竟争解决消息。 To solve this problem, the base station correctly receives Msg.3, based on the content of the feedback to the terminal Msg.3 competitive resolution message. 只有收到内容匹配的竟争解决的终端才能确认随机接入成功。 Terminal can only receive competitive matching content addressed confirmation random access success. 而没有收到竟争解决或是收到的竟争解决中内容不匹配的终端认为该次随机接入失败。 But did not receive competition competitive solve or resolve received does not match the content of the terminal considers the random access failure.

LTE-Advanced系统(简称LTE-A系统)是LTE系统的下一代演进系统。 LTE-Advanced system (LTE-A system) is the next generation of the LTE system evolved system. 如图3所示,LTE-A系统采用载波聚集(carrieraggregation)技术扩展传输带宽,每个聚集的载波称为一个"分量载波"(componentcarrier)。 As shown in FIG. 3, LTE-A system adopts carrier aggregation (carrieraggregation) transmission bandwidth extension technique, each aggregated carrier is called a "component carrier" (componentcarrier). 分量载波在频谱上可以是连续的,也可以是非连续的。 On component carrier spectrum may be continuous, it may be non-contiguous. 如图4所示,LTE-A系统的下行传输带宽由多个下行分量载波聚集而成;上4亍传输带宽可能只包含一个上行分量载波,也可能由多个上行分量载波聚集而成。 4, the downlink transmission bandwidth of the LTE-A system, a plurality of downlink component carriers gathered together; 4 on the right foot might contain only a transmission bandwidth of the uplink component carrier, it may also be gathered from a plurality of uplink component carriers. 即系统上下行带宽可能包含不同数目的分量载波。 I.e., uplink and downlink bandwidth may comprise a different number of component carriers. 即使系统上下行分量载波的数目相同,对某个终端而言,其下行接收带宽包含的分量载波数同上行发送带宽包含的分量载波 Even if the same number of uplink and downlink component carriers, for a certain terminal, the number of carrier components contained in its reception bandwidth of downlink component carrier transmission bandwidth above the row containing the

数也可能不同。 The number may be different. 上下行分量载波数目不等的情况称为非对称载波聚集。 Unequal number of downlink component carriers called asymmetric carrier aggregation.

为在单个分量载波上后向兼容LTE, LTE-A系统在尽可能多的下行分量载波上发送同步信号(Synchronization Signal )和广播信道(Broadcast Channel, BCH)。 Is compatible to a single component carrier after the LTE, LTE-A system transmits a synchronization signal (Synchronization Signal) as much as possible on the downlink carrier component and a broadcast channel (Broadcast Channel, BCH). 广播信道广播的信息有多种,其中可以包括(1) 一个上行分量载波的频点以及这个上行分量载波的带宽;(2)上述上行分量载波对应的物理随机接入信道的配置参数。 Broadcast channel information variety, which can include (1) the bandwidth of a frequency of the uplink component carrier and the uplink component carrier; configuration parameters (2) the uplink component carrier corresponding to a physical random access channel.

在LTE-A系统的随机接入过程中,终端首先利用下行分量载波上的同步信号完成下行同步。 In the random access procedure of the LTE-A system, the terminal first synchronization signal using the downlink carrier component on completion of downlink synchronization. 然后,在这个下行分量载波上接收广播信道,得到这个下行分量载波所对应的有物理随机接入信道的上行分量载波的频点、带宽以及相应的物理随机接入信道配置;f^L接着,终端在这个有物理随机接入信道的上行分量载波上发送物理随机接入前导,进行上行同步。 Then, the reception on the downlink component carrier broadcast channel to obtain frequency uplink component carrier of the physical random access channel of the downlink component carrier corresponding to the bandwidth and the corresponding physical random access channel configuration; f ^ L Next, the terminal transmits on a physical uplink component carrier that has a physical random access channel, the random access preamble, to perform uplink synchronization. 基站对接收到的随机接入前导进行检测,之后发送随机接入响应给终端。 The base station received the random access preamble is detected, after the transmission of the random access response to the terminal. 终端根据随机接 The terminal random access

入响应中的信息发送首次调度上行传输Msg.3。 Information transmitted in response to the first scheduled uplink transmission Msg.3. 基站收到Msg.3后反馈竟争解决Msg.4,整个随机接入过程结束。 After the base station receives feedback Msg.3 competitive solution Msg.4, the whole random access procedure ends.

在非对称载波聚集时,特别是在下行分量载波数多于上行分量载波数时, 一个有物理随机接入信道的上行分量载波可能对应多个下行分量载波。 When asymmetric carrier aggregation, particularly when the number of downlink component carriers than the number of uplink component carriers, an uplink component carrier physical random access channel may correspond to a plurality of downlink component carriers. 即多个下行分量载波的广播信道所通知的有物理随才/U妄入信道的上行分量载波相同,如图4所示。 I.e., with only a plurality of physical downlink component carriers notified by the broadcast channel / U jump uplink component carrier of the same channel, as shown in FIG. 在随机接入过程中,当基站检测到在这个上行分量载波上发送的随机接入前导时,由于无法确定发送该前导的终端同步在哪一个下行分量载波上,随机接入响应需要在所有对应的下行分量载波上重复发送,造成了系统资源的浪费。 In the random access procedure when the base station detects the random access transmission on this uplink component carrier preamble, the preamble transmission can not be determined because of a terminal sync on which downlink component carrier, a random access response corresponding to the needs of all repeatedly transmitted on the downlink component carrier, resulting in a waste of system resources. 同理,当基站收到终端发送的Msg.3后,由于无法确定发送Msg.3的终端同步在哪一个下行分量载波上,Msg.4需要在所有对应的下行分量栽波上重复发送,造成了系统资源的浪费。 Similarly, when the base station receives Msg.3 sent by the terminal since the terminal can not determine the synchronization transmitting Msg.3 on which a downlink component carrier, Msg.4 need to repeat the transmission waves planted in all of the corresponding downlink component, resulting in a waste of system resources.

因此,在LTE-A系统中,如何确定终端同步在哪个下行分量载波上,以避免在多个下行分量载波上重复发送随机接入响应和竟争解决成为一个亟待解决的问题。 Accordingly, the LTE-A system, how to determine the terminal on which the synchronous downlink component carriers to avoid sending a random access response and competitive solution becomes a serious problem on a plurality of downlink component carriers.

发明内容 SUMMARY

本发明要解决的技术问题是提供一种随机接入过程中下行分量载波的标识方法及一种基站,基站在随机接入过程中可以确定终端所同步的下行分量载波,避免在多个下行分量载波上重复发送随才几接入响应和竟争解决。 The present invention is to solve the technical problem is to identify a method of a base station and to provide a component carrier in the downlink random access procedure, the base station may determine the downlink component carrier synchronization in a terminal random access procedure, to avoid a plurality of downlink component with only a few repeating transmission and competitive access response on a carrier solution.

为了解决上述问题,本发明提供了一种随机接入过程中下行分量载波标识方法,包括:将对应于同一个上行分量载波的N个下行分量载波划分为M 组,在不同组的下行分量载波上通知不同的物理随机接入信道配置参数,基站接收到终端发送的随机接入前导后,根据所述随机接入前导判断该终端所同步的下行分量载波所在的组,只在该组中的下行分量载波上发送所述随机接入前导对应的随枳4妄入响应。 To solve the above problems, the present invention provides a method for identifying a downlink component carrier during the random access, comprising: corresponding to the N downlink component carriers divided into a same uplink component carrier groups is M, the downlink component carrier group in the different notification on different physical random access channel configuration parameters, the base station after receiving a random access preamble sent by the terminal, according to the random access preamble by the terminal determines the downlink synchronization component carrier group is located, only in the group transmitting the downlink component carrier on a random access preamble corresponding to responses with Hovenia 4 jump.

进一步地,上述方法还可具有以下特点,所述对应于同一个上行分量载波的N个下行分量载波是指,该N个下行分量载波上广播了同一个上行分量载波的频点位置信息和带宽。 Furthermore, the above method may have the following features corresponding to the same uplink component carrier of the N downlink component carrier means, the broadcast frequency bandwidth of the position information and the same uplink component carrier on the N downlink component carriers .

9进一步地,上述方法还可具有以下特点,在同一组中的下行分量载波上通知相同的物理随枳^姿入信道配置索引、频域初始位置和第一条可用根序列的逻辑索引。 9] Further, the above method may have the following feature notification on the same physical downlink component carrier group with the same pose ^ trifoliate configuration index into the channel, the frequency domain initial position of the logical index and the first available root sequences.

进一步地,上述方法还可具有以下特点,所述通知不同的物理随机接入信道配置参数是指其通知的物理随才A^入信道的配置索引,和/或频域初始位置,和/或第一条可用根序列的逻辑索引不同。 Further, the above method may have the following features, the notification different physical random access channel configuration refers to the physical parameter which was notified with A ^ into the channel configuration index, and / or frequency domain initial position, and / or different from the first logical root sequence index is available.

进一步地,上述方法还可具有以下特点,所述基站根据所述随机接入前导的子帧位置和/或频域初始位置和/或使用的才艮序列判断该终端所同步的下行分量载波所在的组。 Further, the above method may have the following features, the base station determines whether the synchronization of the downlink component carrier where the terminal position of the subframe according to the random access preamble and / or frequency domain starting position and / or before the sequences used Gen group.

进一步地,上述方法还可具有以下特点,如果终端所同步的下行分量载波所在的组中包含多个下行分量载波,所述基站在该组中各下行分量载波上发送的随机接入响应中配置的用于终端发送首次调度上行传输Msg.3的参数不同;所述基站收到终端发送的首次调度上行传输Msg.3后,根据所述Msg.3 判断所述终端所同步的下行分量载波,在该下行分量载波上发送竟争解决Msg.4。 Further, the above method may have the following characteristics, if the terminal downlink component carrier where the group contains a plurality of synchronization of downlink component carriers, each of said base station downlink random access response transmitted on the component carrier disposed in the group the first terminal for transmitting scheduled uplink transmission parameters different Msg.3; after the base station receives first uplink transmission scheduling Msg.3 sent by the terminal, according to the judgment Msg.3 the synchronized downlink component carrier of the terminal, competitive solution Msg.4 transmission on the downlink component carrier.

进一步地,上述方法还可具有以下特点,所述参数不同是指信道资源分配信息UL grant和/或临时小区无线网络临时标识号Temporaiy C-RNTI不同, 所述基站根据所述Msg.3占用的信道资源和/或使用的临时小区无线网络临时标识号Temporary C-RNTI判断所述终端所同步的下行分量栽波。 Further, the above method may have the following characteristics, the parameters of the different channel resource allocation refers to a UL grant information and / or a temporary cell radio network temporary identity number Temporaiy C-RNTI different from the base station according to the occupancy of Msg.3 downlink component of the channel resources and / or temporary cell radio network temporary identification number determines the temporary C-RNTI terminal the synchronized wave planted.

本发明还提出一种基站,其特征在于,所述基站,用于将对应于同一个上行分量载波的N个下行分量载波划分为M组,在不同组的下行分量载波上通知不同的物理随机接入信道配置参数,在接收到终端发送的随机接入前导后,根据所述随机接入前导判断所述终端所同步的下行分量载波所在的组, 只在该组中的下行分量栽波上发送所述随机接入前导对应的随M入响应。 The present invention also provides a base station, wherein the base station is configured to correspond to the same uplink component carrier of the N downlink component carriers are divided into M sets, different physical random notification on different sets of downlink component carrier access channel configuration parameters, upon receiving the random access preamble sent by the terminal, according to the random access of synchronized downlink component carrier where the group of the terminal determination preamble, downlink component only in the group planted wave transmitting the random access preamble corresponding to M with the response.

进一步地,上述基站还可具有以下特点,所述对应于同一个上行分量载波的N个下行分量载波是指,该N个下行分量载波上广播了同一个上行分量载波的频点位置信息和带宽。 Further, the base station may have the following characteristics, corresponding to the same uplink component carrier of the N downlink component carrier means, the broadcast frequency bandwidth of the position information and the same uplink component carrier on the N downlink component carriers .

进一步地,上述基站还可具有以下特点,所述基站,还用于在同一组中的下行分量载波上通知相同的物理随机4妄入信道配置索引、频域初始位置和第一条可用根序列的逻辑索引。 Further, the base station may also have the following feature, the base station is further configured to notify the same in the same group of downlink component carriers jump into a physical random 4 channel configuration index, the frequency-domain initial position, and the first available root sequences the logical index.

进一步地,上述基站还可具有以下特点,所述基站通知不同的物理随机接入信道配置参数是指其通知的物理随机接入信道的配置索引,和/或频域初始位置,和/或第一条可用根序列的逻辑索引不同。 Further, the base station may have the following characteristics, different from the base station informs a physical random access channel configuration parameter is the index of the physical configuration of the random access channel notifies of, and / or frequency domain initial position, and / or the a different logical root sequence indices available.

进一步地,上述基站还可具有以下特点,所述基站根据所述随机接入前导的子帧位置和/或频域初始位置和/或使用的根序列判断所述终端所同步的下行分量载波所在的组。 Further, the base station may also have the following feature, the base station is located according to the synchronized downlink subframe position of the random access preamble and / or frequency domain starting position and / or the root sequence is determined using the terminal component carrier group.

进一步地,上述基站还可具有以下特点,所述基站,还用于在判断终端所同步的下行分量载波所在的组中包含多个下行分量载波时,在该组中各下 Further, the base station may also have the following feature, the base station further comprising a plurality of downlink component carriers when the component carrier group where the downlink synchronization determination in the terminal, at each of the group

行分量载波上发送的随机接入响应中配置不同的用于终端发送Msg.3的参数;及用于收到终端发送的Msg.3后,根据所述Msg.3判断终端所同步的下行分量载波,在该下行分量载波上发送竟争解决。 A random access response transmitted on the line component carriers configured for different transmission parameters Msg.3 the terminal; and the terminal for receipt Msg.3 transmitted according to the determined downlink component Msg.3 synchronous terminal carrier, transmitted on the downlink to resolve competition component carrier.

进一步地,上述基站还可具有以下特点,所述参数不同是指信道资源分配信息UL grant和/或临时小区无线网络临时标识号Temporaiy C-RNTI不同, 所述基站根据所述Msg.3占用的信道资源和/或使用的临时小区无线网络临时标识号Temporary C-RNTI判断所述终端所同步的下行分量载波。 Further, the base station may also have the following feature, the parameters of the different channel resource allocation refers to a UL grant information and / or a temporary cell radio network temporary identity number Temporaiy C-RNTI different from the base station according to the occupancy of Msg.3 channel resources and / or temporary cell radio network temporary identification number determines the temporary C-RNTI terminal the synchronized downlink component carrier.

本发明既避免了在多个下行分量载波上重复发送随机接入响应和竟争解决,同时又可避免当对应于同一个上行分量载波的下行分量载波数量较多时, 单纯通过物理随机接入信道配置;f^:,或单纯通过随机接入响应中的信道资源分配信息UL grant或临时C-RNTI,来标识不同的下行分量载波所产生的过大的限制,具备4艮强的灵活性。 The present invention avoids repeating random access response transmitted on a plurality of competitive and downlink carrier component solution, while avoiding the time when a large number corresponding to the same uplink component carrier of a downlink component carrier, simply by a physical random access channel configuration; f ^ :, or simplex channel resource allocation information through a UL grant or temporary C-RNTI in the random access response, to identify different downlink component carriers generated excessive restriction, provided strong Gen 4 flexibility.

附图说明 BRIEF DESCRIPTION

附图用来提供对本发明的进一步理解,并且构成说明书的一部分,与本发明的实施例一起用于解释本发明,并不构成对本发明的限制。 The drawings provide a further understanding of the invention and constitute a part of this specification, the embodiments of the invention, serve to explain the invention, not to limit the present invention. 在附图中: In the drawings:

图1是LTE系统随机接入过程示意图;图2是LTE系统的物理资源块结构示意图(以常^见循环前缀为例);图3是LTE-A系统载波聚集示意图; FIG 1 is a schematic diagram of a random access procedure of the LTE system; FIG. 2 is a schematic structural diagram of a physical resource block of the LTE system (see cyclic prefix in Example often ^); FIG. 3 is a LTE-A carrier aggregation system schematic;

图4是LTE-A系统多个下行分量载波对应一个上行分量载波示意图; FIG 4 is a LTE-A system corresponding to a plurality of downlink component carriers schematic uplink component carrier;

图5是本发明随机接入过程中下行分量载波标识方法流程图; FIG 5 is a flowchart of a component carrier identification method of the present invention, a random access procedure in the downlink;

图6是本发明实施例一(1)下行分量载波标识方法示意图; FIG 6 is a schematic view of a embodiment of the present invention (1) downlink component carrier identification methods;

图7是本发明实施例一(2)下行分量载波标识方法示意图; FIG 7 is a first embodiment (2) of the present invention, a schematic view of the downlink component carrier identification methods;

图8是本发明实施例二下ff分量载波标识方法示意图; FIG 8 is a schematic view of a component carrier identification methods ff the two embodiments of the invention;

图9是本发明实施例三(1)下行分量载波标识方法示意图; FIG 9 is a schematic diagram according to a third embodiment of the present invention (1) downlink component carrier identification methods;

图IO是本发明实施例三(2)下行分量载波标识方法示意图。 FIG IO is a third embodiment (2) of the present invention, a schematic view of the downlink component carrier identification methods.

具体实施方式 Detailed ways

本发明提出了一种在LTE-A系统随机接入过程中标识下行分量载波的方法,如图5所示,包括: The present invention provides a process for the LTE-A system, the random access procedure identified downlink component carrier, shown in Figure 5, comprising:

步骤510,将对应于同一个上行分量载波的N个下行分量载波划分为M组,在不同组的下行分量载波上通知不同的物理随机接入信道配置参数; Step 510, corresponding to the same uplink component carrier of the N downlink component carriers are divided into M groups, notice different physical random access channel configuration parameters in the different sets of downlink component carriers;

假设有N个下行分量载波对应l个上行分量栽波,即这N个下行分量栽波中,每个下行分量载波的广播信道都通知了同一个上行分量载波的频点位置信息及其带宽。 Suppose there are N downlink component carriers corresponding to the uplink component l planted wave, i.e., the N downlink component planting wave, the broadcast channel of each downlink component carrier are notified of the same uplink component carrier frequency and the bandwidth of the position information. N的取值可以为l、 2、 3、 4或5。 The value of N may be l, 2, 3, 4 or 5.

将这N个下行分量载波分为M组,1<M<N, M的取值可以为l、 2、3、 4或5。 These N downlink component carriers are divided into M groups, 1 <M <N, M values ​​can be l, 2,3, 4 or 5. 每一组内可以有l、 2、 3、 4或5个下行分量载波。 Can be l, 2, 3, 4 or 5 in each downlink component carrier group.

在下行分量载波上通知的物理随机接入信道配置参数包括但不限于物理随机接入信道的配置索引,频域初始位置,物理随机接入信道的第一条可用根序列的逻辑索引,循环移位量以及循环移位限制标识。 A physical random access channel configuration parameter notification on a downlink component carrier including, but not limited to the configuration index physical random access channel, the frequency domain starting position, a physical random access channel, the first logical root sequence index is available, a circular shift and a cyclic shift amount restriction flag. 用于区分不同组的配置参数可以为(但不限于)物理随M入信道的配置索引,或频域初始位置,或物理随机接入信道的第一条可用根序列的逻辑索引或上述配置参数的组合。 For distinguishing between different sets of configuration parameters may be (but are not limited to) the M physical channel with a configuration index, or frequency domain starting position, or first available logical root sequence index of a physical random access channel configuration parameters or said The combination.

在每一组内的下行分量栽波上通知的物理随才;^接入信道配置参数中,上 Downlink component within each set of physical plant with only notify the wave; ^ access channel configuration parameters, the

12述用于区分不同组的配置参数相同;不同组的下行分量载波上通知的物理随才;W妄入信道配置参数中,上述用于区分不同组的配置参数不同。 12 the same configuration for distinguishing said different set of parameters; with only notify the physical downlink component carrier different groups; W is the channel jump configuration parameters, the above configuration for distinguishing different sets of different parameters.

步骤520,终端根据其同步的下行分量载波上的系统信息,发送随机接入前导。 Step 520, the terminal system according to the information on which downlink component carrier synchronization, sending a random access preamble.

步骤530,基站收到随机接入前导后,根据该随机接入前导的子帧位置和/或频域初始位置和/或使用的根序列即可判定该终端同步在哪一组的下行分量载波上,并只在该组中的下行分量载波上发送与该随机接入前导对应的随机接入响应。 Step 530, after the base station receives the random access preamble, in accordance with the position of the sub-frame random access preamble and / or frequency domain starting position and / or root sequences used to synchronize the terminal determines a downlink component carrier which group on, and only transmits the random access preamble corresponding to the random access response on the downlink component carriers in the group. 如果该组内有多个下行分量载波,基站为在各下行分量载波上发送的随机接入响应配置不同的用于终端发送首次调度上行传输的参数。 If there are a plurality of downlink component carriers, the base station transmits the first set of parameters for scheduling uplink transmissions of random access transmission in each downlink component carrier in response to the different configurations for the terminal. 所述参数可以为随机接入响应中的信道资源分配信息UL grant,或临时C-RNTI,或二者的组合。 The parameter may be a combination of channel resource allocation information in the UL grant of the random access response, or temporary C-RNTI, or both.

步骤540,终端根据其收到的随机接入响应,按照随机接入响应中的信道资源分配信息UL grant在对应的上行信道资源上发送首次调度上行传输(Msg.3),并根据随机接入响应中的临时C-RNTI对Msg.3加扰。 Step 540, a terminal which receives the random access response information according to the channel resource allocation of the random access response transmitted first UL grant scheduling uplink transmissions (Msg.3) on the corresponding uplink channel resources, and according to the random access temporary C-RNTI in response to the scrambling Msg.3.

步骤550,基站根据收到的Msg.3 ,具体地说是根据Msg.3占用的信道资源,或是使用的临时C-RNTI,或是二者的组合,即可最终判定该终端同步在该组的哪一个下行分量载波上,基站在该下行分量载波上发送竟争解决(Msg.4)。 Step 550, the base station according to the received Msg.3, particularly according Msg.3 channel resource occupied, or temporary C-RNTI used, or a combination of both, the final decision to synchronize the terminal on which a downlink component carrier groups, the base station transmits competitive solution (Msg.4) on the downlink component carrier.

下面将结合实施例和附图详细描述本发明。 The following Examples and figures The invention is described in detail. 实施例一 Example a

假定一个LTE-A系统,工作在FDD才莫式下,下行分量载波有5个,每个下行分量载波的带宽为20MHz,上行分量栽波有2个,每个上行分量栽波的带宽为20MHz,如图6所示。 Assume a LTE-A system, work only at the FDD Mohs', there are five downlink component carriers, the bandwidth of each downlink component carrier is 20MHz, uplink planted wave has two components, each uplink component planted wave 20MHz bandwidth ,As shown in Figure 6.

下行分量载波1、 2、 3的广播信道中广播了如下信息(不限于如下信息) Downlink component carrier 1, 2, 3 broadcast channel broadcasting the following information (information is not limited to the following)

1) 上行分量载波1的频点位置信息及带宽。 1) uplink component carrier frequency and bandwidth information of the position 1.

2) 上行分量栽波1上的物理随机接入信道配置参数。 2) physical uplink component wave planted on the random access channel 1 configuration parameters. 下行分量载波l、 2为一组,其广播的上行分量栽波1上的物理随机接入信道配置参数相同,即物理随机接入信道配置索引为9 (对应的物理随机接入信道的格式为0,在上行子帧1或4或7上发送),频域初始位置为第20 个RB,第一条可用根序列的逻辑索引为10。 Downlink component carrier l, 2 is a group which uplink component broadcasts planted wave of a physical random access channel on a same configuration parameters, i.e., a physical random access channel configuration index 9 (corresponding to a physical random access channel format 0, transmitted on the uplink subframe 1 or 4 or 7), the initial frequency domain location of the RB 20, the first available logical root sequence index was 10.

下行分量载波3单独为一组,其广播的上行分量载波1上的物理随机接入信道配置参数为物理随机接入信道配置索引为9 (对应的物理随机接入信道的格式为0,在上行子帧1或4或7上发送),频域初始位置为第20个RB, 第一条可用根序列的逻辑索引为100。 Downlink component carrier 3 alone as a group, uplink component carrier which broadcast a physical random on an access channel configuration parameters of the physical random access channel configuration index 9 (corresponding to a physical random access channel format is 0, the uplink transmitting subframe 1 or 4 or 7), the initial frequency domain location of the RB 20, the first available logical root sequence index of 100.

下行分量载波4、 5中的广播信道中广播了如下信息(不限于如下信息) Downlink component carriers 4, 5 in the broadcast channel information is broadcast as follows (the following information is not limited to)

1 )上行分量载波2的频点位置信息及带宽。 1) uplink component carrier frequency and bandwidth information of the position 2.

2)上行分量载波2上的物理随机接入信道配置参数。 2) physical uplink component carrier on a random access channel configuration parameter 2.

下行分量载波4单独为一组,其广播的上行分量载波2上的物理随机接入信道配置参数为物理随机接入信道配置索引为9 (对应的物理随机接入信道的格式为0,在上行子帧1或4或7上发送),频域初始位置为第20个RB, 第一条可用根序列的逻辑索引为10。 Downlink component carrier 4 separately for a set of uplink component carriers which broadcast a physical random on the second access channel configuration parameters of the physical random access channel configuration index 9 (corresponding to a physical random access channel format is 0, the uplink transmitting subframe 1 or 4 or 7), the initial frequency domain location of the RB 20, the first available logical root sequence index was 10.

下行分量载波5单独为一组,其广播的上行分量载波2上的物理随机接入信道配置参数为物理随机接入信道配置索引为9 (对应的物理随机接入信道的格式为0,在上行子帧1或4或7上发送),频域初始位置为第20个RB, 第一条可用根序列的逻辑索引为100。 Downlink component carrier 5 alone as a group, uplink component carrier which broadcasts a physical random access channel on the two configuration parameters to a physical random access channel configuration index format 9 (corresponding to a physical random access channel is 0, the uplink transmitting subframe 1 or 4 or 7), the initial frequency domain location of the RB 20, the first available logical root sequence index of 100.

如果一个终端下行同步于下行分量载波1,则这个终端在上行分量载波1 上发送随机接入前导,该随机4妄入前导可以在子帧1或4或7上发送,频域初始位置为第20个RB,第一条可用根序列的逻辑索引为10。 If a terminal in the downlink synchronization downlink component carrier 1, then the terminal transmits an uplink component carrier on a random access preamble, the preamble of the random jump 4 in subframes 1 or 4 or 7 on the transmission, the frequency domain starting position for the first 20 RB, the first logical root sequence index of 10 available. 基站在接收到这个终端发送的随机接入前导后,检测出终端的定时提前量,通过随机接入响应将该定时提前量发送给终端。 The base station after receiving the random access preamble sent by the terminal, the terminal detects the timing advance, the timing advance sent to the terminal through a random access response. 基站根据该随机接入前导的子帧位置、频域初始位置和使用的根序列,判定该终端下行同步在下行分量载波1或2上, 则随机接入响应在下行分量载波l和2上同时发送。 The base station according to the position of the sub-frame random access preamble, and the frequency domain starting position of the root sequence to use, the terminal determines the downlink synchronization on the downlink component carrier 1 or 2, the random access response on the downlink component carrier simultaneously l and 2 send.

在下行分量载波1上发送的随机接入响应中包含的用于终端下一步发送Msg.3的信道资源分配信息为UL grant—1,在下行分量载波2上发送的随机接入响应中包含的用于终端下一步发送Msg.3的信道资源分配信息为UL grant—2,如图7所示。 Included in the random access response transmitted on a downlink component carrier for transmitting the next terminal Msg.3 channel resource allocation information for the UL grant-1, a random access response transmitted on the downlink component carrier 2 included a terminal for transmitting the next Msg.3 channel resource allocation information for the UL grant-2, as shown in FIG.

终端收到随机接入响应后,按照随机接入响应中的信道资源分配信息UL grant—1在对应的上行信道资源上发送Msg.3。 After the terminal receives a random access response, the channel resource allocation according to the random access response information transmitted Msg.3 UL grant-1 on the corresponding uplink channel resources. 基站收到Msg.3后,根据其占用的信道资源位置判定终端同步在下行分量载波1上,并在下行分量载波1 上发送竟争解决。 After the base station receives Msg.3, determined according to channel resources occupied by the terminal position of the synchronization on the downlink component carrier 1, and transmits the competitive solution in a downlink component carrier.

如果一个终端下行同步于下行分量载波3,则这个终端在上行分量载波1 上发送随机接入前导,该随机接入前导可以在子帧1或4或7上发送,频域初始位置为第20个RB,第一条可用根序列的逻辑索引为100。 If a terminal in the downlink synchronization downlink carrier component 3, then the terminal transmits an uplink component carrier on a random access preamble, the random access preamble may be transmitted on subframe 1 or 4 or 7, the frequency domain starting position for the first 20 an RB, the first available logical root sequence index of 100. 基站在接收到这个终端发送的随机接入前导后,检测出终端的定时提前量,通过随机接入响应将该定时提前量发送给终端。 The base station after receiving the random access preamble sent by the terminal, the terminal detects the timing advance, the timing advance sent to the terminal through a random access response. 基站根据该随机接入前导的子帧位置、 频域初始位置和使用的根序列,判定该终端下行同步在下行分量栽波3上, 则随机接入响应在下行分量栽波3上发送。 The base station according to the position of the sub-frame random access preamble, and the frequency domain starting position of the root sequence to use, the terminal determines the downlink synchronization in downlink planted wave component 3, the random access response transmitted on the downlink component 3 planted wave.

如果一个终端下行同步于下行分量载波5,则这个终端在上行分量载波2 上发送随M入前导,该随才;U娄入前导可以在子帧1或4或7上发送,频域初始位置为第20个RB,第一条可用根序列的逻辑索引为100。 If a terminal downlink synchronization in downlink component carrier 5, then the terminal transmits in the uplink component carrier 2 with M into the preamble, which with it; the U-Lou the preamble may be transmitted on subframe 1 or 4 or 7, the frequency domain starting position for the first 20 RB, the first available logical root sequence index of 100. 基站在接收到这个终端发送的随机接入前导后,检测出终端的定时提前量,通过随机接入响应将这个定时提前量发送给终端。 The base station after receiving the random access preamble sent by the terminal, the terminal detects the timing advance, the timing advance is sent to the terminal through a random access response. 基站根据该随机接入前导的子帧位置、 频域初始位置和使用的根序列,判定该终端下行同步在下行分量载波5上, 则随机接入响应在下行分量载波5上发送。 The base station according to the position of the sub-frame random access preamble, and the frequency domain starting position of the root sequence to use, the terminal determines the downlink synchronization on the downlink carrier component 5, the random access response transmitted on the downlink carrier component 5.

实施例二 Second Embodiment

假定一个LTE-A系统,工作在FDD模式下,下行分量载波有2个,每个下行分量载波的带宽为20MHz,上行分量载波有1个,带宽为20MHz,如图8所示。 Assume a LTE-A system, operating in FDD mode, there are two downlink component carriers, the bandwidth of each downlink component carrier is 20MHz, the uplink component carrier has a bandwidth of 20MHz, as shown in FIG.

下行分量载波l、 2的广播信道中广播了如下信息(不限于如下信息)1 )上行分量载波1的频点位置信息及带宽。 Downlink component carrier l, 2 broadcast channel broadcasting the following information (not limited to the following information) 1) uplink component carrier frequency and bandwidth information of the position 1.

2)上行分量载波1上的物理随机接入信道配置参数。 2) physical uplink component carrier on a random access channel configuration parameters 1.

下行分量载波1单独为一组,其广播的上行分量载波1上的物理随枳4妻入信道配置参为物理随机接入信道配置索引为9 (对应的物理随才;W妄入信道 Downlink component carrier 1 separately is a group of physical on an uplink component carrier that it broadcasts with orange 4 wife into the channel configuration parameters configuration index 9 (corresponding physical with only a physical random access channel; W is jump into the channel

的格式为O,在上行子帧l或4或7上发送),频域初始位置为第20个RB, 第一条可用才艮序列的逻辑索引为10。 The format is O, transmitted on the uplink subframe l or 4 or 7), the initial frequency domain location of the RB 20, the first logical index sequence is available only Gen 10.

下行分量载波2单独为一组,其广播的上行分量载波2上的物理随机4妻入信道配置参为物理随机接入信道配置索引为9 (对应的物理随机接入信道的格式为0,在上行子帧l或4或7上发送),频域初始位置为第26个RB, 第一条可用+艮序列的逻辑索引为10。 Downlink component carrier 2 alone as a group, uplink component carrier which broadcast a physical random on 24 wife into the channel configuration parameters configuration index to a physical random access channel format 9 (corresponding to a physical random access channel is 0, the transmitting the uplink subframe l or 4 or 7), the initial frequency domain location of the RB 26, the first available logical index + 10 Burgundy sequence.

如果一个终端下行同步于下行分量栽波1,则这个终端在上行分量载波1 上发送随机接入前导,该随机接入前导可以在子帧1或4或7上发送,频域初始位置为第20个RB,第一条可用根序列的逻辑索引为10。 If the downlink synchronization in downlink a terminal planted wave component 1, then the terminal transmits a random access preamble on the uplink component carrier 1, the random access preamble may be transmitted on subframe 1 or 4 or 7, the frequency domain starting position for the first 20 RB, the first logical root sequence index of 10 available. 基站在接收到这个终端发送的物理随机接入前导后,检测出终端上行的定时提前量,通过随机接入响应将这个定时提前量发送给终端。 The base station after receiving the physical random access preamble sent by the terminal, the terminal detects the timing advance of the uplink, the timing advance is sent to the terminal through a random access response. 基站根据该随机接入前导的子帧位置、频域初始位置和使用的根序列,判定该终端下行同步在下行分量载波1上。 The base station according to the position of the sub-frame random access preamble, and the frequency domain starting position of the root sequence to use, the terminal determines the downlink synchronization on the downlink component carrier 1. 则随机4妻入响应在下行分量载波1上发送。 Randomly into 4 wife sends the response on the downlink component carrier 1.

如果一个终端下行同步于下行分量载波2,则这个终端在上行分量载波2 上发送随机接入前导,该随机接入前导可以在子帧1或4或7上发送,频域初始位置为第26个RB,第一条可用根序列的逻辑索引为10。 If a terminal in the downlink synchronization downlink component carrier 2, then the terminal transmits a random access preamble on the uplink component carrier 2, the random access preamble may be transmitted on subframe 1 or 4 or 7, the frequency domain starting position for the first 26 an RB, the first logical root sequence index of 10 available. 基站在接收到这个终端发送的物理随机接入前导后,检测出终端上行的定时提前量,通过随机接入响应将这个定时提前量发送给终端。 The base station after receiving the physical random access preamble sent by the terminal, the terminal detects the timing advance of the uplink, the timing advance is sent to the terminal through a random access response. 基站根据该随机接入前导的子帧位置、频域初始位置和使用的根序列,判定该终端下行同步在下行分量载波2上,随机接入响应在下行分量载波2上发送。 The base station according to the position of the sub-frame random access preamble, and the frequency domain starting position of the root sequence to use, the terminal determines the downlink synchronization on the downlink component carrier 2, a random access response transmitted on the downlink component carrier 2.

假定一个LTE-A系统,工作在FDD模式下,下行分量栽波有5个,每个下行分量栽波的带宽为20MHz,上行分量载波有2个,每个上行分量载波 Assume a LTE-A system, operating in FDD mode, downlink component waves have planted 5, each downlink component planted wave bandwidth 20MHz, there are two uplink component carriers, each of the uplink component carrier

16的带宽为20MHz,如图9所示。 16 is the bandwidth of 20MHz, as shown in FIG.

下行分量载波l、 2、 3的广播信道中广播了如下信息(不限于如下信息) L downlink component carrier, a broadcast channel 2, 3 the following information broadcast (the information is not limited to the following)

1) 上行分量载波1的频点位置信息及其带宽。 1) uplink component carrier frequency and the bandwidth of the position information of 1.

2) 上行分量栽波1上的物理随机接入信道的配置参数。 2) uplink component planted wave configuration parameters of the physical random access channel 1 on.

下行分量栽波1单独为一组,其广播的上行分量载波1上的物理随机4妻入信道配置参数为随机接入信道配置索引为9 (对应的物理随机接入信道的格式为0,在上行子帧1或4或7上发送),频域初始位置为第20个RB, 第一条可用根序列的逻辑索引为10。 Downlink component planted wave 1 alone as a group, uplink component carrier which broadcast a physical random on 14 wife into the channel configuration parameters for the random access channel configuration index 9 (corresponding to a physical random access channel format is 0, the transmitting the uplink subframe 1 or 4 or 7), the initial frequency domain location of the RB 20, the first available logical root sequence index was 10.

下行分量栽波2单独为一组,其广播的上行分量载波1上的物理随机接入信道配置参数为随机接入信道配置索引为9 (对应的物理随机接入信道的格式为0,在上行子帧1或4或7上发送),频域初始位置为第26个RB, 第一条可用根序列的逻辑索引为10。 Downlink component planted wave 2 alone as a group, uplink component carrier which broadcasts a physical random access channel on a configuration parameter to the random access channel configuration index 9 (corresponding to the format of a physical random access channel is 0, the uplink transmitting subframe 1 or 4 or 7), the initial frequency domain location of the RB 26, the first available logical root sequence index was 10.

下行分量载波3单独为一组,其广播的上行分量载波1上的物理随机接入信道配置参数为物理随机接入信道配置索引为10 (对应的物理随机接入信道的格式为0,在上行子帧2或5或8上发送),频域初始位置为第20个RB, 第一条可用根序列的逻辑索引为10。 Downlink component carrier 3 alone as a group, uplink component carrier which broadcast a physical random on an access channel configuration parameters of the physical random access channel configuration index is 10 (corresponding to a physical random access channel format is 0, the uplink transmitting subframe 2 or 5 or 8), the initial frequency domain location of the RB 20, the first available logical root sequence index was 10.

下行分量栽波4、 5中的广播信道中广播了如下信息(不限于如下信息) 4 downlink component planted wave, the broadcast channel 5 following the broadcast information (the following information is not limited to)

1) 上行分量载波2的频点位置信息及带宽。 1) uplink component carrier frequency and bandwidth information of the position 2.

2) 上行分量载波2上的物理随机接入信道的配置参数。 2) configuration parameters on the physical random access channel 2 uplink component carrier.

下行分量载波4、 5为一组,其广播的上行分量载波2上的物理随机接入信道配置参数相同,即物理随机接入信道配置索引为9(对应的物理随机接入信道的格式为0,在上行子帧1或4或7上发送),频域初始位置为第20 个RB,第一条可用才艮序列的逻辑索引为10。 Downlink carrier component 4, 5 as a group, the same uplink component carrier which broadcasts a physical random access channel on the two configuration parameters, i.e., a physical random access channel configuration index 9 (corresponding to a physical random access channel format 0 in the uplink subframe 1 or 4 or 7 transmitted), the initial frequency domain location of the RB 20, the first logical index sequence is available only Gen 10.

如果一个终端下行同步于下行分量载波2,则这个终端在上行分量栽波1 上发送随机接入前导,该随«入前导可以在子帧1或4或7上发送,频域初始位置为第26个RB,第一条可用根序列的逻辑索引为10。 If a terminal in the downlink synchronization downlink component carrier 2, then the terminal in the uplink component planted on a wave transmitted random access preamble, with which «may be transmitted on the preamble subframe 1 or 4 or 7, the frequency domain starting position for the first 26 RB, the first logical root sequence index of 10 available. 基站在接收到这个终端发送的随机接入前导后,检测出终端的定时提前量,通过随机接入响应将这个定时提前量发送给终端。 The base station after receiving the random access preamble sent by the terminal, the terminal detects the timing advance, the timing advance is sent to the terminal through a random access response. 基站根据该随才几接入前导的子帧位置、 Access to only a few base station sub-frame location according to the preamble with,

频域初始位置和使用的根序列,判定该终端下行同步在下行分量载波2上, 则随机接入响应在下行分量载波2上发送。 The frequency domain starting position and the root sequences used, the terminal determines the downlink synchronization on the downlink component carrier 2, the random access response transmitted on the downlink component carrier 2.

如果一个终端下行同步于下行分量载波4,则这个终端在上行分量载波2 上发送随机接入前导,该随机接入前导可以在子帧1或4或7上发送,频域初始位置为第20个RB,第一条可用根序列的逻辑索引为10。 If a terminal in the downlink synchronization downlink carrier component 4, then the terminal transmits a random access preamble on the uplink component carrier 2, the random access preamble may be transmitted on subframe 1 or 4 or 7, the frequency domain starting position for the first 20 an RB, the first logical root sequence index of 10 available. 基站在接收到这个终端发送的物理随机接入前导后,检测出终端的定时提前量,通过随机接入响应将这个定时提前量发送给终端。 The base station after receiving the physical random access preamble sent by the terminal, the terminal detects the timing advance, the timing advance is sent to the terminal through a random access response. 基站根据该随机接入前导的子帧位置、频域初始位置和使用的根序列,判定该终端下行同步在下行分量栽波4 或5上。 The base station according to the position of the sub-frame random access preamble, and the frequency domain starting position of the root sequence to use, the terminal determines the downlink synchronization in downlink component planted wave 4 or 5. 则随机接入响应在下行分量载波4和5上同时发送。 Then simultaneously transmit random access response on the downlink component carrier 4 and 5.

但在下行分量载波4上发送的随机接入响应中包含的用于终端下一步发送Msg.3的临时C-RNTI为Temporary C-RNTI一1 ,在下行分量载波5上发送的随机接入响应中包含的用于终端下一步发送Msg.3的临时C-RNTI为Temporaiy C-RNTI2,如图10所示。 However, a random access response transmitted on the downlink component carriers 4 included in the terminal for transmitting the next Msg.3 the Temporary C-RNTI to the Temporary C-RNTI random access a 1, transmitted on a downlink component carrier in response to 5 included in the terminal for transmitting the next Msg.3 the temporary C-RNTI as Temporaiy C-RNTI2, as shown in FIG.

终端收到随机接入响应后,按照随机接入响应中的信道资源分配信息UL grant在对应的上行信道资源上发送上行Msg.3。 After the terminal receives a random access response, the channel resource allocation information according to the random access response on the corresponding UL grant of uplink resource for transmitting an uplink channel Msg.3. 基站收到Msg.3后,根据其使用的临时C-RNTI判定终端同步在下行分量载波4上,并在下行分量载波4 上发送竟争解决。 After the base station receives Msg.3, temporary C-RNTI is determined according to the use of the terminal in synchronization downlink carrier component 4, and transmits the competitive solution downlink carrier component 4.

本发明中所述方法,当有N个下行分量载波对应1个上行分量载波时, 通过在不同组的下行分量载波上通知不同的物理随机接入信道配置参数,以及在同一组内的不同下4亍分量载波上发送不同的随机4妾入响应,系统标识了不同的下行分量载波。 The method of the present invention, when there are N downlink component carriers corresponding to an uplink component carrier, configuration parameters, and under different within the same group by notifying different physical random access channel in a different downlink carrier component groups 4 on the right foot transmit different component carriers randomly into 4 concubine response, the system identifies the different downlink component carrier. 在整个随机接入过程中,基站根据收到的信息(包括随机接入前导和首次调度上行传输),逐步缩小范围,最终可以确定该终端同步在哪一个下行分量载波上。 Throughout the random access procedure, the base station according to the received information (including a random access preamble and the first scheduled uplink transmission), to gradually narrow down the final synchronization can be determined that the terminal on which a downlink component carrier.

以上所述仅为本发明的实施例而已,并不用于限制本发明,对于本领域的技术人员来说,本发明可以有各种更改和变化。 The above embodiments of the invention only, but not intended to limit the invention to those skilled in the art, the present invention may have various changes and variations. 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权利要求范围之内。 Any modification within the spirit and principle of the present invention, made, equivalent substitutions, improvements, etc., should be included within the scope of the invention as claimed in claims.

18图4中: 18 Figure 4:

□同步信号 □ synchronization signal

図下行分量载波#1, 2, 3的广播信道,其中的系统信息指向上行分量载波#1 Chart downlink component carrier # 1, 2, 3 in a broadcast channel, wherein the system information pointing to the uplink component carrier # 1

■下行分量栽波#4, 5的广播信道,其中的系统信息指向上行分量载 ■ downlink planted wave component # 4, 5 of a broadcast channel, wherein the system information pointing to the uplink component carrier

波#2 Wave # 2

图6中: □同步信号 FIG 6: □ synchronization signal

^下行分量载波#1, 2的广播信道,其中的系统信息指向上行分量载波#1,分配的随机接入信道的第一条可用根序列逻辑索引为10 ^ Downlink component carrier # 1, a broadcast channel 2, wherein the system information pointing to the uplink component carrier # 1, the first available logical root sequence index random access channel is allocated 10

囫下行分量载波#3的广播信道,其中的系统信息指向上行分量载波#1 , 分配的随机接入信道的第一条可用根序列逻辑索引为100 Hu downlink component carrier # 3 of the broadcast channel, wherein the system information pointing to the uplink component carrier # 1, the first available logical root sequence index of the random access channel is allocated 100

國下行分量载波#4的广播信道,其中的系统信息指向上行分量载波弁2, 分配的随机接入信道的第一条可用根序列逻辑索引为10 State downlink component carrier # 4 is the broadcast channel wherein the system information of the uplink component carrier Bian point 2, the first available logical root sequence index random access channel is allocated 10

S下行分量载波#5的广播信道,其中的系统信息指向上行分量载波#2, 分配的随机接入信道的第一条可用根序列逻辑索引为100 S downlink component carrier # 5 of the broadcast channel, wherein the system information pointing to an uplink component carrier # 2, the first available logical root sequence index of the random access channel is allocated 100

曰第一条可用根序列逻辑索引为IO的一组随机接入前导 Said first logical root sequence index is available as a set of IO random access preamble

回第一条可用根序列逻辑索引为IOO的一组随机接入前导 Back to the first available logical root sequence index IOO a set of random access preamble

圍在上行分量载波#1上,且第一条可用根序列逻辑索引为10的那一组随机接入前导所对应的随机接入响应(在下行分量载波#1, 2上发送) Around the uplink component carrier # 1, and the first available logical root sequence index is that random access preamble set 10 corresponding random access response (# 1, the transmission 2 in the downlink component carrier)

■在上行分量载波#1上,且第一条可用根序列逻辑索引为100的那一组随机接入前导所对应的随机接入响应(在下行分量载波#3上发送) ■ in the uplink component carrier # 1, and the first available logical root sequence index that group 100 random access random access response (downlink component carrier # 3 transmits) the corresponding preamble

翳在上行分量载波#2上,且第一条可用根序列逻辑索引为10的那一组随机接入前导所对应的随机接入响应(在下行分量载波弁4上发送)驪在上行分量载波#2上,且第一条可用根序列逻辑索引为100的那一组随机接入前导所对应的随机接入响应(在下行分量载波#5上发送) Shade on an uplink component carrier # 2, and the first available logical root sequence index is that group of 10 random access preamble corresponding to the random access response (transmission on the downlink component carrier Benten 4) uplink component carrier in Li # 2, and the first available logical root sequence index that group 100 random access preamble corresponding to the random access response (transmission on the downlink component carrier # 5)

图7中: Figure 7:

□同步信号 □ synchronization signal

^下行分量载波#1, 2的广播信道,其中的系统信息指向上行分量载波#1,分配的随机接入信道的第一条可用根序列逻辑索引为10 ^ Downlink component carrier # 1, a broadcast channel 2, wherein the system information pointing to the uplink component carrier # 1, the first available logical root sequence index random access channel is allocated 10

圆下行分量载波#3的广播信道,其中的系统信息指向上行分量载波弁1, 分配的随机接入信道的第一条可用根序列逻辑索引为100 Round downlink component carrier # 3 broadcast channels, wherein the system information of the uplink component carrier Bian point 1, the first available logical root sequence index of the random access channel is allocated 100

懲下行分量载波#4的广播信道,其中的系统信息指向上行分量载波#2, 分配的随机接入信道的第一条可用根序列逻辑索引为10 Correctional downlink component carrier # 4 is the broadcast channel wherein the system information of the uplink component carrier # 2 points to, the first available logical root sequence index random access channel is allocated 10

B下行分量载波#5的广播信道,其中的系统信息指向上行分量载波#2, 分配的随机接入信道的第一条可用根序列逻辑索引为100 B downlink component carrier # 5 broadcast channel, wherein the system information pointing to an uplink component carrier # 2, the first available logical root sequence index of the random access channel is allocated 100

目在下行分量载波#1上的随机接入响应,其中的信道资源分配信息为UL grant—1 Entries in the random access on the downlink component carrier # 1 response, wherein the channel resource allocation information for the UL grant-1

回在下行分量载波#2上的随机接入响应,其中的信道资源分配信息为UL grant—2 Back on the downlink component carrier # 2 is the random access response, wherein the channel resource allocation information for the UL grant-2

■在下行分量栽波#3上的随机接入响应 ■ In the downlink component wave planted on the random access response # 3

國在下行分量载波#4上的随机接入响应 States in the random access on the downlink component carrier # 4 in response to

驪在下行分量栽波#5上的随机接入响应 Li component in the downlink random access response on the plant waves # 5

■按照UL grant—1在对应的上行信道资源上发送的Msg.3 ■ in accordance with the UL grant-1 Msg.3 sent on the corresponding uplink channel resources

驪按照UL grant—2在对应的上行信道资源上发送的Msg.3 Li accordance Msg.3 UL grant-2 transmitted on the respective uplink channel resources

图8中: Figure 8:

□同步信号 □ synchronization signal

^下行分量载波#1的广播信道,其中的系统信息指向上行分量载波弁l, 分配的随机接入信道的频域初始位置为第20个RBH下行分量载波#2的广播信道,其中的系统信息指向上行分量栽波#1, ^ Downlink component carrier # 1 of the broadcast channel, wherein the system information pointing to an uplink component carrier Bian L, the frequency domain starting position allocated random access channel for the first 20 RBH downlink component carrier # broadcast channel 2, wherein the system information pointing to the uplink component wave planted # 1,

分配的随机接入信道的频域初始位置为第26个RB The frequency domain starting position of the random access channel allocation for the first 26 RB

暨随机接入信道的频域初始位置在第20个RB的一组随机接入前导^随机接入信道的频域初始位置在第26个RB的一组随机接入前导目在下行分量载波#1上的随机接入响应回在下行分量载波#2上的随机接入响应 Cum random access channel frequency domain starting position in the frequency domain starting position of the random access preamble set 20 ^ RB is a random access channel in a set of random access preamble of the mesh 26 in RB # downlink component carrier a random access response on the downlink component carrier back on random access response # 2

图9中: Figure 9:

□同步信号 □ synchronization signal

B下行分量栽波#1的广播信道,其中的系统信息指向上行分量载波#1, 分配的随机接入信道配制索引为9,在上行子帧1或4或7上发送,频域初始位置为第20个RB B downlink component planted wave # broadcast channels 1, wherein the system information pointing to the uplink component carrier # 1, the random access channel assignment formulated index 9, transmitted on the uplink subframe 1 or 4 or 7, the frequency domain initial position The first 20 RB

囫下行分量载波#2的广播信道,其中的系统信息指向上行分量载波#1, 分配的随机接入信道配制索引为9,在上行子帧1或4或7上发送,频域初始位置为第26个RB Hu downlink component carrier # broadcast channel 2, wherein the system information pointing to the uplink component carrier # 1, the allocated random access channel formulated index 9, transmitted on the uplink subframe 1 or 4 or 7, the frequency domain starting position for the first 26 RB

國下行分量载波#3的广播信道,其中的系统信息指向上行分量载波#1, 分配的随机接入信道配制索引为10,在上行子帧2或5或8上发送,频域初始位置为第20个RB State downlink component carrier # broadcast channel 3, wherein the system information pointing to the uplink component carrier # 1, the allocated random access channel formulated index 10, transmitted on the uplink subframe 2 or 5 or 8, the frequency domain starting position for the first 20 RB

B下行分量载波#4, 5的广播信道,其中的系统信息指向上行分量载波#2,分配的随机接入信道配制索引为9,在上行子帧1或4或7上发送, 频域初始位置为第20个RB B downlink component carrier # 4, a broadcast channel 5, wherein the system information pointing to the uplink component carrier # 2, the allocated random access channel formulated index 9, transmitted on the uplink subframe 1 or 4 or 7, the frequency domain starting position for the first 20 RB

曰在上行子帧1或4或7上发送,频域初始位置为第20个RB的一组随机接入前导 Said transmission 1 or 4 or 7 on the uplink subframe, the frequency domain starting position of a set of random access preamble of the RB 20

回在上行子帧1或4或7上发送,频域初始位置为第26个RB的一组随机接入前导 Back in the uplink subframe 1 or 4 or 7 the transmission, the frequency domain starting position of a set of random access preamble of the RB 26

目在上行子帧2或5或8上发送,频域初始位置为第20个RB的一组随机接入前导國在上行分量载波#1上,且时域位置为上行子帧1或4或7,频域初始位置为第20个RB的那一组随机接入前导所对应的随机接入响应(在下行分量载波#1上发送) Head transmitted on the uplink subframe 2 or 5 or 8, the initial frequency domain location of an RB 20 a set of random access preamble on the uplink component carrier State # 1, and the temporal position of the uplink subframe 1 or 4, or 7, the initial frequency domain location of an RB 20 that set of random access preamble corresponding to the random access response (transmission on the downlink component carrier # 1)

騸在上行分量栽波#1上,且时域位置为上行子帧1或4或7,频域初始位置为第26个RB的那一组随机接入前导所对应的随机接入响应(在下行分量载波#2上发送) Gelding wave planted in the uplink component # 1, and the temporal location of an uplink subframe 1 or 4 or 7, the initial frequency domain location of an RB 26 that set of random access preamble of the random access response corresponding to (in downlink component carrier # 2 on the transmission)

■在上行分量载波#1上,且时域位置为上行子帧2或5或8,频域初始位置为第20个RB的那一组随机接入前导所对应的随机接入响应(在下行分量载波#3上发送) ■ in the uplink component carrier # 1, and the temporal position of an uplink subframe 2 or 5 or 8, the initial frequency domain location of an RB 20 that set of random access preamble of the random access response corresponding to (downlink transmitted on the component carrier # 3)

■在上行分量载波#2上的那一组随机接入前导所对应的随机接入响应(在下行分量载波#4, 5上发送) ■ in the uplink component carrier # 2 that group on the random access preamble corresponding to the random access response (transmission on the downlink component carrier # 4, 5)

图10中: Figure 10:

図同步信号 Chart synchronization signal

圆下行分量载波#1的广播信道,其中的系统信息指向上行分量栽波弁l, 分配的随机接入信道配制索引为9,在上行子帧1或4或7上发送,频域初始位置为第20个RB Round downlink component carrier # broadcast channels 1, wherein the system information pointing to an uplink component planted wave Bian L, the allocated random access channel formulated index 9, transmitted on the uplink subframe 1 or 4 or 7, the frequency domain initial position The first 20 RB

図下行分量载波#2的广播信道,其中的系统信息指向上行分量栽波#1 , 分配的随机接入信道配制索引为9,在上行子帧1或4或7上发送,频域初始位置为第26个RB Chart downlink component carrier # 2 a broadcast channel, wherein the system information pointing to the uplink component planted wave # 1, the random access channel assignment formulated index 9, transmitted on the uplink subframe 1 or 4 or 7, the frequency domain initial position The first 26 RB

國下行分量载波#3的广播信道,其中的系统信息指向上行分量栽波#1, 分配的随机接入信道配制索引为10,在上行子帧2或5或8上发送,频域初始位置为第20个RB State downlink component carrier # 3 broadcast channel, wherein the system information pointing to the uplink component planted wave # 1, the random access channel assignment formulated index 10, transmitted on the uplink subframe 2 or 5 or 8, the frequency domain initial position The first 20 RB

曰下行分量栽波#4, 5的广播信道,其中的系统信息指向上行分量栽波#2,分配的随机接入信道配制索引为9,在上行子帧1或4或7上发送, 频域初始位置为第20个RB Said downlink component planted wave # 4, a broadcast channel 5, wherein the system information pointing to the uplink component planted waves # 2, the allocated random access channel formulated index 9, transmitted on the uplink subframe 1 or 4 or 7, the frequency domain The initial position of the 20 RB

回在下行分量载波#1上发送的随机接入响应 Back to the random access transmission on a downlink component carrier in response #

回在下行分量载波#2上发送的随机接入响应圍在下行分量栽波#3上发送的随#几接入响应 Back to the random access transmission on the downlink component carrier # 2 in response to the downlink component around the plant with wave # # access response transmitted on several 3

國在下行分量载波#4上发送的随机接入响应,分配的临时C-RNTI为Temporary C-RNTI—1 States in the random access transmission on the downlink component carrier # 4 in response, temporary C-RNTI allocated as Temporary C-RNTI-1

□在下行分量载波#5上发送的随机接入响应,分配的临时C-RNTI为Temporary C-RNTI—2 □ random access transmission on a downlink component carrier in response to # 5, the temporary C-RNTI assigned as Temporary C-RNTI-2

國临时C-RNTI为Temporary C-RNTI—1的Msg.3 State Temporary C-RNTI is Msg.3 Temporary C-RNTI-1's

圏临时C-RNTI为Temporary C-RNTI—2的Msg.3 。 Temporary C-RNTI for the rings of Msg.3 Temporary C-RNTI-2's.

23 twenty three

Claims (14)

1、一种随机接入过程中下行分量载波标识方法,其特征在于,包括:将对应于同一个上行分量载波的N个下行分量载波划分为M组,在不同组的下行分量载波上通知不同的物理随机接入信道配置参数,基站接收到终端发送的随机接入前导后,根据所述随机接入前导判断该终端所同步的下行分量载波所在的组,只在该组中的下行分量载波上发送所述随机接入前导对应的随机接入响应。 A random access procedure downlink component carrier identification method, comprising: corresponding to the N downlink component carriers divided into a same uplink component carrier groups is M, a notification on a different downlink carrier component group different after a physical random access channel configuration parameters, the base station receives a random access preamble sent by the terminal, according to the random access preamble by the terminal determines the downlink synchronization component carrier set where only the downlink component carrier group transmitting the random access preamble corresponding to the random access response.
2、 如权利要求l所述的方法,其特征在于,所述对应于同一个上行分量载波的N个下行分量载波是指,该N个下行分量载波上广播了同一个上行分量载波的频点位置信息和带宽。 2. The method of claim l, wherein said N downlink component carriers corresponds to the same uplink component carrier means, a broadcast frequency on an uplink component carrier with the N downlink component carriers location information and bandwidth.
3、 如权利要求l所述的方法,其特征在于,在同一组中的下行分量载波上通知相同的物理随机接入信道配置索引、频域初始位置和第一条可用根序列的逻辑索引。 3. The method of claim l, wherein the notification downlink component carrier in the same group of the same physical random access channel configuration index, the frequency domain initial position of the logical index and the first available root sequences.
4、 如权利要求1或2或3所述的方法,其特征在于,所述通知不同的物理随机接入信道配置M是指其通知的物理随机接入信道的配置索引,和/或频域初始位置,和/或第一条可用根序列的逻辑索引不同。 4. The method of claim 1 or claim 2 or claim 3, wherein said different notification physical random access channel configuration index M refers to the configuration of notifying the physical random access channel, and / or frequency domain initial position, and / or the first available logical root sequence index different.
5、 如权利要求4所述的方法,其特征在于,所述基站根据所述随机接入前导的子帧位置和/或频域初始位置和/或使用的^f艮序列判断该终端所同步的下行分量栽波所在的组。 5. The method as claimed in claim 4, wherein the base station determines that the terminal position of the synchronized subframes according to the random access preamble and / or frequency domain starting position and / or sequences used Gen ^ f downlink component waves where the plant group.
6、 如权利要求1或2或3所述的方法,其特征在于,如果终端所同步的下行分量载波所在的组中包含多个下行分量载波,所述基站在该組中各下行分量载波上发送的随机接入响应中配置的用于终端发送首次调度上行传输Msg.3的^lt不同;所述基站收到终端发送的首次调度上行传输Msg.3后, 根据所述Msg.3判断所述终端所同步的下行分量栽波,在该下行分量载波上发送竟争解决Msg.4。 6. The method of claim 1 or claim 2 or claim 3, wherein, if the terminal downlink component carrier where the group contains a plurality of synchronization of downlink component carriers, each of the base stations in the downlink component carrier group a random access response transmitted configured for transmitting the first terminal of scheduling uplink transmissions Msg.3 ^ different lt; base station after receiving the first scheduling uplink transmissions Msg.3 sent by a terminal, the determination is based Msg.3 said terminal synchronous downlink component planted wave transmission Msg.4 competitive solution on the downlink component carrier.
7、 如权利要求6所述的方法,其特征在于,所述参数不同是指信道资源分配信息UL grant和/或临时小区无线网络临时标识号Temporary C-RNTI不同,所述基站根据所述Msg.3占用的信道资源和/或使用的临时小区无线网络临时标识号Temporaiy C-RNTI判断所述终端所同步的下行分量载波。 7. The method as claimed in claim 6, wherein said different parameters refer to different channel resource allocation information UL grant and / or a temporary cell radio network temporary identity number Temporary C-RNTI, the base station according to the Msg .3 channel resource occupied by and / or use of a temporary cell radio network temporary identification number determines the Temporaiy C-RNTI terminal the synchronized downlink component carrier.
8、 一种基站,其特征在于,所述基站,用于将对应于同一个上行分量栽波的N个下行分量载波划分为M组,在不同组的下行分量载波上通知不同的物理随机接入信道配置参数,在接收到终端发送的随机接入前导后,根据所述随机接入前导判断所述终端所同步的下行分量载波所在的组,只在该组中的下行分量载波上发送所述随机接入前导对应的随机接入响应。 A base station, wherein the base station is configured to correspond to the same uplink component waves planted N downlink component carriers are divided into M sets, different physical notified in different downlink carrier component group of random access the channel configuration parameters, upon receiving the random access preamble sent by the terminal, according to the random access preamble set determined by the terminal in the downlink component carrier where the synchronization, transmits the downlink carrier component only in the group said random access response corresponding to the random access preamble.
9、 如权利要求8所述的基站,其特征在于,所述对应于同一个上行分量载波的N个下行分量栽波是指,该N个下行分量栽波上广播了同一个上行分量载波的频点位置信息和带宽。 9. The base station as claimed in claim 8, wherein said uplink component carrier corresponding to a downlink component with the N wave plant means that the plant components on the N downlink broadcast waves same uplink component carrier point position information and the frequency bandwidth.
10、 如权利要求8所述的基站,其特征在于,所述基站,还用于在同一组中的下行分量载波上通知相同的物理随机接入信道配置索引、频域初始位置和第一条可用根序列的逻辑索引。 10. The base station as claimed in claim 8, characterized in that the base station is further configured to notify the same in the same group of downlink component carriers physical random access channel configuration index, the frequency domain starting position of first and available logical root sequence index.
11、 如权利要求8或9或IO所述的基站,其特征在于,所述基站通知不同的物理随机接入信道配置参数是指其通知的物理随机接入信道的配置索引,和/或频域初始位置,和/或第一条可用根序列的逻辑索引不同。 11. The base station of claim 8 or 9 or IO claim, wherein the different base station notifies a physical random access channel configuration parameter is the index of the physical configuration of notifying the random access channel, and / or frequency domain initial position, and / or the first available logical root sequence index different.
12、 如权利要求ll所述的基站,其特征在于,所述基站根据所述随机接入前导的子帧位置和/或频域初始位置和/或使用的根序列判断所述终端所同步的下行分量载波所在的组。 12 The base station according to claim ll, characterized in that the base station in accordance with the position of the sub-frame random access preamble and / or frequency domain starting position and / or the root sequence is determined using the terminal the synchronized group downlink component carrier is located.
13、 如权利要求8或9或10所述的基站,其特征在于,所述基站,还用于在判断终端所同步的下行分量载波所在的组中包含多个下行分量栽波时, 在该组中各下行分量载波上发送的随机接入响应中配置不同的用于终端发送Msg.3的参数;及用于收到终端发送的Msg.3后,根据所述Msg.3判断终端所同步的下行分量栽波,在该下行分量栽波上发送竟争解决。 13, The base station as claimed in claim 8 or 9 or in claim 10, characterized in that the base station is further configured to group planted wave synchronous terminal determines a downlink component carrier where the plurality of downlink component contained in the group each downlink random access response transmitted on the different component carriers configured for the terminal's transmission parameters Msg.3; Msg.3 and after receipt of a transmission of a terminal, according to the synchronous terminal determines Msg.3 downlink component planted waves, transmitted on the downlink to resolve competition planted wave component.
14、 如权利要求13所述的基站,其特征在于,所述参数不同是指信道资源分配信息UL grant和/或临时小区无线网络临时标识号Temporaiy C-RNTI 不同,所述基站根据所述Msg.3占用的信道资源和/或使用的临时小区无线网络临时标识号Temporary C-RNTI判断所述终端所同步的下行分量载波。 14. The base station as claimed in claim 13, wherein said parameter is a different channel resource allocation information different UL grant and / or a temporary cell radio network temporary identity number Temporaiy C-RNTI, the base station according to the Msg .3 channel resource occupied by and / or use of a temporary cell radio network temporary identification number determines the temporary C-RNTI terminal the synchronized downlink component carrier.
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