CN101179364B - The method of transmitting a time division duplex system random access channel - Google Patents

The method of transmitting a time division duplex system random access channel Download PDF

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CN101179364B
CN101179364B CN 200710194776 CN200710194776A CN101179364B CN 101179364 B CN101179364 B CN 101179364B CN 200710194776 CN200710194776 CN 200710194776 CN 200710194776 A CN200710194776 A CN 200710194776A CN 101179364 B CN101179364 B CN 101179364B
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rach
boundary
frequency band
available
available frequency
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CN 200710194776
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CN101179364A (en
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夏树强
郝鹏
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中兴通讯股份有限公司
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Abstract

本发明提供了一种时分双工系统中随机接入信道的发送方法,包括以下步骤:确定时分双工系统的UpPTS内的RACH的数目;当RACH是1个时,将1个RACH分配在可用频带的上边界或下边界;当RACH是2个时,将2个RACH分别分配在可用频带的上边界及下边界;以及当RACH大于2个时,将其中的两个RACH分别分配在可用频带的上边界及下边界,将其它RACH基本均匀地分布在可用频带的两个RACH之间的频带上;或者将一部分的RACH分配在可用频带的上边界,将剩下的RACH分配在可用频带的下边界。 The present invention provides a method of transmitting a time division duplex system random access channel, comprising the steps of: determining the number of RACH in the UpPTS time division duplex system; and when is a RACH, the RACH is assigned to an available upper or lower boundary of the frequency bands; when the RACH is 2, the RACH are assigned to two available frequency band on the boundary and a lower boundary; and when the RACH is greater than 2, two of which are assigned to the available frequency band RACH the upper boundary and the lower boundary, the other RACH substantially uniformly distributed over the frequency band between two frequency bands available RACH; or a portion of the RACH assigned in the available frequency band on the boundary, the remaining available bandwidth allocated to the RACH lower boundary. 本发明可以使RACH最大限度地获得频域分集效果。 The present invention can maximize access RACH frequency domain diversity effect.

Description

时分双工系统中随机接入信道的发送方法 The method of transmitting a time division duplex system random access channel

技术领域 FIELD

[0001] 本发明涉及通信领域,具体而言,涉及一种时分双工系统中随机接入信道的发送方法。 [0001] The present invention relates to communication field, specifically, it relates to a method for transmitting a time division duplex system random access channel.

背景技术 Background technique

[0002] LTE (Long Term Evolution,长期演进)系统TDD (Time DivisionDuplex,时分双工)模式的帧结构,如图1所示。 [0002] LTE (Long Term Evolution, LTE) system, TDD (Time DivisionDuplex, Time Division Duplex) mode a frame structure as shown in FIG. 在这种帧结构中,一个IOms的无线帧被分成两个半帧,每个半帧分成10个长度为0. 5ms时隙(编号从0到9),两个时隙组成一个长度为Ims的子帧, 一个半帧中包含5个子帧(编号从0到4)。 In this frame structure, one radio frame IOms is divided into two half-frames, each half-frame is divided into 10 time slots with a length of 0. 5ms (numbered from 0 to 9), a length of two slots Ims subframe, a half-frame includes 5 subframes (number from 0 to 4). 对于长度为5. 21us及4.69US的短CP(Cyclic Prefix,循环前缀),一个时隙包含7个长度为66. 7us的符号,其中第一个符号CP长度为5. 21us,其余6个符号的CP长度为4. 69us ;对于长度为16. 67us的长CP,一个时隙包含6 个符号。 For a short length of the CP 5. 21us and 4.69US (Cyclic Prefix, cyclic prefix), a slot includes seven symbols of length 66. 7us, wherein the first symbol CP length 5. 21us, the remaining 6 symbols CP length is 4. 69us; for long CP length 16. 67us, one slot includes six symbols. 另外,在这种帧结构中,子帧的配制特点为: Further, in this frame structure, the subframe is formulated characteristics:

[0003] 子帧0固定用于下行; [0003] 0 for downlink subframe;

[0004] 子帧1 (以下称为特殊子帧)包含3个特殊时隙,分别是DwPTS (Downlink Pilot Time Slot,下行导频时隙)、GP (Guard Period,保护周期)及UpPTS (Uplink Pilot Time Slot,上行导频时隙)。 [0004] The sub-frame 1 (hereinafter referred to as a special sub-frame) includes 3 special time slots, namely, DwPTS (Downlink Pilot Time Slot, a downlink pilot time slot), GP (Guard Period, a guard period) and UpPTS (Uplink Pilot Time slot, uplink pilot time slot). 其中, among them,

[0005]丨DwPTS用于下行,最少一个符号用于传输主同步信道 [0005] Shu DwPTS is used for downlink, at least a symbol for transmitting a primary synchronization channel

[0006] P-SCH(Primary-Synchronization Channel,主同步信道), [0006] P-SCH (Primary-Synchronization Channel, the primary synchronization channel),

[0007] 当DwPTS包含多个符号的时候,P-SCH放在第一个符号上(如图1所示); [0007] when the DwPTS comprises a plurality of symbols, P-SCH is placed (shown in FIG. 1) on the first symbol;

[0008]丨GP为保护时间,不传输任何数据; [0008] Shu GP is guard time, without transmitting any data;

[0009] 丨UpPTS用于上行,可以用于传输RACH(Random AccessChannel,随机接入信道), 数据,sounding (探测)导频等信号。 [0009] Shu UpPTS is used for uplink, the transmission may be used for RACH (Random AccessChannel, Random Access Channel), data, Sounding (detection) of the pilot signal and the like.

[0010] 子帧1后面的前η个子帧用于上行传输(1 < η < 3),后3-Π个子帧用于下行传输。 [0010] 1 before the latter sub-frame [eta] subframes for uplink transmission (1 <η <3), after 3-Π subframes used for downlink transmission.

[0011] 对于上述帧结构,在UpPTS中发送RACH时,RACH在频域的位置是一个待解决的问题,如果设计不得当,将会减弱RACH间的分集效果,并且还会增加数据信道在资源分配时的复杂度。 [0011] For the above frame structure, when the RACH is transmitted in the UpPTS, the frequency domain position of the RACH is a problem to be solved, if designed improperly, it will weaken between RACH diversity effect, and also to increase the data channel resources when the complexity of the assignment.

发明内容 SUMMARY

[0012] 本发明旨在提供一种时分双工系统中随机接入信道的发送方法,能够解决在UpPTS中发送RACH时,RACH在频域位置不当导致减弱RACH间分集效果的问题。 [0012] The present invention aims to provide a method for transmitting a time division duplex system random access channel, RACH is transmitted can be solved in the UpPTS, the RACH frequency domain position between reduced problems caused by improper RACH diversity effect.

[0013] 根据本发明的一个方面,提供了一种时分双工系统中随机接入信道的发送方法, 包括以下步骤:确定时分双工系统的UpPTS内的RACH的数目;当RACH是1个时,将1个RACH分配在可用频带的上边界或下边界;当RACH是2个时,将2个RACH分别分配在可用频带的上边界及下边界;以及当RACH大于2个时,将其中的两个RACH分别分配在可用频带的上边界及下边界,将其它RACH基本均勻地分布在可用频带的两个RACH之间的频带上;或者将一部分的RACH分配在可用频带的上边界,将剩下的RACH分配在可用频带的下边界。 [0013] In accordance with one aspect of the invention there is provided a method of transmitting a time division duplex system random access channel, comprising the steps of: determining the number of RACH in the UpPTS time division duplex system; a time when the RACH is the one allocated to the RACH in the available frequency band upper boundary or lower boundary; when RACH is 2, the two RACH are allocated in the available frequency band upper boundary and a lower boundary; and when the RACH is greater than 2, in which the RACH respectively assigned two at the boundary and the lower boundary of the available frequency band, the RACH other substantially uniformly distributed over the frequency band between two frequency bands available RACH; allocated RACH or on the boundary portion of the available frequency band, the remaining RACH in allocating the available frequency band at the border.

[0014] 优选的,当RACH是1个时,还包括:将相邻的用于发送RACH的UpPTS内的RACH都放在可用频带的上边界。 [0014] Preferably, when the RACH is a time, further comprising: adjacent to the RACH RACH in the UpPTS are transmitted on the available frequency band boundary.

[0015] 优选的,当RACH是1个时,还包括:将相邻的用于发送RACH的UpPTS内的RACH都放在可用频带的下边界。 [0015] Preferably, when the RACH is a time, further comprising: adjacent to the RACH RACH in the UpPTS are transmitted on the available frequency band at the border.

[0016] 优选的,当RACH是1个时,还包括:将相邻的用于发送RACH的UpPTS内的RACH交替放在可用频带的上边界及下边界。 [0016] Preferably, when the RACH is a time, further comprising: adjacent to the RACH RACH in the UpPTS transmitted alternately on the available frequency band upper boundary and lower boundary.

[0017] 优选的,当RACH是2个时,还包括:用户设备在重传的时候交替使用位于上边界及下边界上的RACH。 [0017] Preferably, when RACH is 2 when, further comprising: a user equipment when the alternating retransmission on the RACH located on the boundary and the lower boundary.

[0018] 优选的,当RACH是2个时,还包括:用户设备在重传的时候使用位于所述可用频带内的与上一次传输具有相同频域位置上的所述RACH。 [0018] Preferably, when RACH is 2 when, further comprising: a user equipment at the time of retransmission using the available and located in the last transmission on the RACH band has the same frequency domain location.

[0019] 优选的,当RACH大于2个,将其中的两个RACH分别分配在可用频带的上边界及下边界,将其它RACH基本均勻地分布在可用频带的两个RACH之间的频带上时,还包括:用户设备在重传的时候交替使用位于可用频带的不同频域位置上的RACH。 [0019] Preferably, when more than two frequency band RACH, the RACH of which two are assigned at the boundary and the lower boundary of the available frequency band, the RACH other substantially uniformly distributed between the two frequency bands available RACH when further comprising: a user equipment at the time of retransmission on the RACH positioned alternately in different positions in the frequency domain the available frequency band.

[0020] 优选的,当RACH大于2个,将其中的两个RACH分别分配在可用频带的上边界及下边界,将其它RACH基本均勻地分布在可用频带的两个RACH之间的频带上时,还包括:用户设备在重传的时候使用位于可用频带内的与上一次传输具有相同频域位置上的RACH。 [0020] Preferably, when more than two frequency band RACH, the RACH of which two are assigned at the boundary and the lower boundary of the available frequency band, the RACH other substantially uniformly distributed between the two frequency bands available RACH when further comprising: a user equipment at the time of retransmission using the available frequency band is located with the last transmission on the RACH having the same frequency domain location.

[0021] 优选的,当RACH大于2个,将一部分的RACH分配在可用频带的上边界,将剩下的RACH分配在可用频带的下边界时,还包括:用户设备在重传的时候交替使用位于上边界及下边界的RACH。 [0021] Preferably, when the RACH is greater than 2, the RACH is assigned at the boundary portion of the available frequency band, the RACH allocated remaining available frequency band at the boundary, further comprising: a user equipment when the alternating retransmission RACH located on the boundary and the lower boundary.

[0022] 优选的,当RACH大于2个,将一部分的RACH分配在可用频带的上边界,将剩下的RACH分配在可用频带的下边界时,还包括:用户设备在重传的时候使用位于可用频带内的与上一次传输具有相同频域位置上的RACH。 [0022] Preferably, when the RACH is greater than 2, the RACH is assigned at the boundary portion of the available frequency band, the RACH allocated remaining available frequency band at the boundary, further comprising: when the user equipment is located in the retransmission using available and the last RACH transmission in a frequency band having the same frequency domain location.

[0023] 通过上述技术方案,本发明可以使RACH最大限度地获得频域分集效果,并且当UpPTS内只有一个RACH的时候,可以降低数据信道资源分配时的复杂度。 [0023] Through the above technical solution, the present invention can maximize the RACH frequency diversity effect is obtained, and when the UpPTS is only one of RACH, complexity can be reduced when the data channel resource allocation.

附图说明 BRIEF DESCRIPTION

[0024] 此处所说明的附图用来提供对本发明的进一步理解,构成本申请的一部分,本发明的示意性实施例及其说明用于解释本发明,并不构成对本发明的不当限定。 [0024] The drawings described herein are provided for further understanding of the present invention, constitute a part of this application, exemplary embodiments of the present invention are used to explain the present invention without unduly limiting the present invention. 在附图中: In the drawings:

[0025] 图1示出了LTE系统TDD模式的帧结构; [0025] FIG 1 illustrates a frame structure in the TDD mode in the LTE system;

[0026] 图加示出了一个频域RACH的发送方法-相邻RACH都在可用频带上边界; [0026] FIG added illustrates a method of transmitting a RACH frequency domain - RACH adjacent frequency bands are available on the boundary;

[0027] 图2b示出了一个频域RACH的发送方法-相邻RACH都在可用频带下边界; [0027] Figure 2b illustrates a method of transmitting a RACH frequency domain - in adjacent RACH available band lower boundary;

[0028] 图2c示出了一个频域RACH的发送方法-相邻RACH —个在上边界,一个在下边界; [0028] FIG 2c shows a method of transmitting a RACH frequency domain - neighboring RACH - on a boundary, a lower boundary;

[0029] 图3a示出了两个频域RACH的发送方法_重传时使用不同的频域信道; [0029] Figure 3a illustrates a method of transmitting the RACH _ two frequency domain using different frequency domain channel retransmission;

[0030] 图北示出了两个频域RACH的发送方法-重传时使用相同的频域信道; [0030] FIG North illustrates a method of transmitting RACH frequency domain of two - using the same frequency domain channel retransmission;

[0031] 图如示出了三个频域RACH的发送方法-重传时使用不同的频域信道; [0031] As shown in FIG three RACH transmission frequency domain - Use of different frequency domain channel retransmission;

[0032] 图4b示出了三个频域RACH的发送方法-重传时使用相同的频域信道; [0032] Figure 4b shows a three RACH transmission frequency domain - the use of the same frequency domain channel retransmission;

[0033] 图fe示出了四个频域RACH的发送方法-重传时使用不同的频域信道;[0034] 图恥示出了四个频域RACH的发送方法-重传时使用相同的频域信道; [0033] FIG fe illustrates a method of transmitting the RACH four frequency bands - using different frequency domain channel retransmission; [0034] FIG shame illustrates a method of transmitting the RACH four frequency domain - the retransmission of the same frequency-domain channel;

[0035] 图6a示出了四个频域RACH的发送方法(两个位于上边界,另外两个位于下边界)_重传时交替使用位于上边界及下边界的频域信道(相对位置不同); [0035] Figure 6a illustrates a method of transmitting a RACH four frequency domain (two located on the boundary, the lower boundary of the other two located) using the retransmission _ alternately positioned on the frequency domain channel boundary and a lower boundary (different relative positions );

[0036] 图6b示出了四个频域RACH的发送方法(两个位于上边界,另外两个位于下边界)_重传时交替使用位于上边界及下边界的频域信道(相对位置相同); [0036] Figure 6b illustrates a method of transmitting a RACH four frequency domain (two located on the boundary, the lower boundary of the other two located) _ alternately positioned on the frequency domain channel boundary and a lower boundary (the same relative position of the retransmission );

[0037] 图6c示出了四个频域RACH的发送方法(两个位于上边界,另外两个位于下边界)_重传时使用相同的频域信道; [0037] Figure 6c illustrates a method of transmitting a RACH four frequency domain (two located on the boundary, the lower boundary of the other two located) _ using the same frequency domain channel retransmission;

[0038] 注:以上均为示意图。 [0038] Note: The above are schematic.

具体实施方式 Detailed ways

[0039] 下面将参考附图并结合实施例,来详细说明本发明。 [0039] below with reference to accompanying drawings and embodiments, the present invention will be described in detail.

[0040] 本发明提供了一种时分双工系统中随机接入信道的发送方法,包括以下步骤: [0040] The present invention provides a method of transmitting a time division duplex system random access channel, comprising the steps of:

[0041] 确定时分双工系统的UpPTS内的RACH的数目; [0041] determines the number of RACH in the UpPTS time division duplex system;

[0042] 当RACH是1个时,将1个RACH分配在可用频带的上边界或下边界; [0042] When a RACH is, the RACH is assigned to an upper or lower boundary in the available frequency band;

[0043] 当RACH是2个时,将2个RACH分别分配在可用频带的上边界及下边界;以及 [0043] When the RACH is 2, the RACH 2 respectively assigned to the upper boundary and the lower boundary of the available frequency band;

[0044] 当RACH大于2个时,将其中的两个RACH分别分配在可用频带的上边界及下边界, 将其它RACH基本均勻地分布在可用频带的两个RACH之间的频带上;或者将一部分的RACH 分配在可用频带的上边界,将剩下的RACH分配在可用频带的下边界。 [0044] When the RACH is greater than 2, in which the RACH respectively assigned two at the boundary and the lower boundary of the available frequency band, the RACH other substantially uniformly distributed over the frequency band between two frequency bands available RACH; or RACH is assigned at the boundary portion of the available frequency band, the RACH allocated remaining available frequency band at the border.

[0045] 其中,一部分优选的为一半(或近似一半),即,将一半(或近似一半)RACH放在可用频带的上边界,另一半(或近似一半)放在可用频带下边界。 [0045] wherein a portion of the preferred half (or approximately half), i.e., half (or approximately half) of the boundary on the RACH available frequency band, the other half (or approximately half) of the available frequency band on the lower boundary. 这样,用户终端在发生重传的时候,交替使用位于上边界及下边界的RACH信道(相对位置可以相同,也可以不同),或使用相同频域位置的RACH信道。 Thus, the user terminal in the event of retransmission, the RACH channel alternately located on the boundary and a lower boundary (relative position may be the same or different), or using the same frequency domain location of the RACH channel.

[0046] 具体来说,当UpPTS内的RACH小于或等于2个的时候,RACH放在可用频带的两端, [0046] Specifically, when the RACH in the UpPTS is less than or equal to 2, the RACH is available on both ends of the band,

[0047] •当UpPTS内只有一个频域RACH的时候,RACH应放在可用频带上边界或下边界; 另外相邻UpPTS内的RACH在频域的位置可以是 [0047] • When the UpPTS time only one of the frequency domain RACH, RACH should be placed on the available frequency band or lower boundary; additional RACH in the frequency domain at a position adjacent to the UpPTS may be

[0048] 都在可用频带上边界(如图加所示);或 [0048] frequency bands are available on the boundary (as shown in FIG plus); or

[0049] 都在可用频带下边界(如图2b所示);或 [0049] In all the available band boundaries (Figure 2b); or

[0050] 交替位于可用频带上边界及下边界(如图2c所示) [0050] The available frequency bands are alternately positioned on the boundary and the lower boundary (shown in Figure 2c)

[0051] •当UpPTS内有两个频域RACH的时候,RACH的配制可以是 [0051] • when there are two in the frequency domain RACH UpPTS time, the RACH may be formulated

[0052] 在频域上RACH应放在可用频带上边界及下边界,且UE在重传的时候应交替使用位于上边界及下边界上的RACH(如图3a所示);或 [0052] In the frequency domain the available RACH should be placed on the boundary and the lower boundary of the frequency band, and the UE when retransmission should be positioned alternately on the RACH on the boundary and a lower boundary (FIG. 3a); or

[0053] 在频域上RACH应放在可用频带上边界及下边界,且UE在重传的时候使用相同频域位置上的RACH(如图3b所示); [0053] In the frequency domain the available frequency RACH should be placed on the boundary and a lower boundary, and the UE using the RACH (shown in FIG. 3b) on the same frequency domain location at the time of retransmission;

[0054] 当UpPTS内的频域RACH大于2个的时候,可用频带的上边界及下边界分配两个RACH,其它频域上的RACH均勻(或近似均勻)地分布在位于上边界及下边界的RACH之间的可用的频带内。 [0054] When the frequency domain RACH in the UpPTS is greater than 2, the available frequency band upper boundary and the lower boundary of two assigned RACH, RACH frequency domain on the other uniform (or substantially uniformly) distributed in the boundary and the lower boundary is located within the frequency band available between the RACH. 另外,在重传的时候,UE可以 Further, at the time of retransmission, the UE can

[0055] 交替使用位于不同频域位置上的RACH ;或 [0055] RACH alternately positioned on different positions in the frequency domain; or

[0056] 使用与上一次传输具有相同频域位置的RACH。 [0056] and the last transmitted RACH using the same frequency domain location.

[0057] 显然,在时域,UpPTS内的RACH可以放在UpPTS的前面,也可以放在UpPTS的后面(如图加及图2b所示)。 [0057] Clearly, in the time domain, the RACH in the UpPTS may be placed in front of the UpPTS can be placed behind the UpPTS (FIG plus and FIG. 2b).

[0058] 本发明可以使RACH最大限度地获得频域分集效果,并且当UpPTS内只有一个RACH 的时候,可以降低数据信道资源分配时的复杂度。 [0058] The present invention can maximize the RACH frequency diversity effect is obtained, and when the UpPTS is only one of RACH, complexity can be reduced when the data channel resource allocation.

[0059] •实施例一(如图加所示) [0059] • first embodiment (shown in FIG plus)

[0060] UpPTS内有一个频域RACH,位于可用频带上边界。 [0060] UpPTS within a frequency domain RACH, the available frequency band is located on the boundary.

[0061] •实施例二(如图沘所示) [0061] • according to the second embodiment (shown in FIG Bi)

[0062] UpPTS内有一个频域RACH,位于可用频带下边界。 [0062] UpPTS within a frequency domain RACH, the available frequency band is located at the boundary.

[0063] ·实施例三(如图2c所示) [0063] - according to a third embodiment (shown in FIG. 2c)

[0064] UpPTS内有一个频域RACH,相邻UpPTS内的频域信道交替位于可用频带上边界及下边界。 [0064] UpPTS within a frequency domain RACH, the frequency domain channel within the available frequency band is located adjacent alternating UpPTS upper boundary and the lower boundary.

[0065] ·实施例四(如图3a所示) [0065] EXAMPLE IV (FIG. 3a)

[0066] UpPTS内有两个频域RACH,分别位于可用频带上边界及下边界,且UE在重传的时候应交替使用位于上边界及下边界上的RACH。 [0066] There are two frequency domain within the UpPTS RACH, available frequency bands are located on the boundary and a lower boundary, and the UE when retransmission should be positioned alternately on the RACH on the boundary and a lower boundary.

[0067] •实施例五(如图北所示) [0067] • fifth embodiment (shown in FIG. North)

[0068] UpPTS内有两个频域RACH,分别位于可用频带上边界及下边界,且UE在重传的时候使用相同频域位置上的RACH。 [0068] There are two frequency domain within the UpPTS RACH, available frequency bands are located on the boundary and a lower boundary, and the UE RACH is used on the same frequency domain location at the time of retransmission.

[0069] ·实施例六(如图如所示) [0069] EXAMPLE VI (as shown in FIG.)

[0070] UpPTS内有三个频域RACH,分别位于可用频带上边界、下边界及频带的中间,且UE 在重传的时候应交替使用位于上边界、中间及下边界的三个RACH。 [0070] There are three inner UpPTS frequency domain RACH, available frequency bands are located on the boundary, and the boundary of lower intermediate band, and the UE when retransmission should be alternately located on the boundary, and the three intermediate lower boundary RACH.

[0071] •实施例七(如图4b所示) [0071] • seventh embodiment (FIG. 4b)

[0072] UpPTS内有三个频域RACH,分别位于可用频带上边界、下边界及频带的中间,且UE 在重传的时候使用相同频域位置上的RACH。 [0072] There are three RACH frequency domain within the UpPTS, available frequency bands are located on the boundary, and the boundary of lower intermediate band, and the UE RACH is used on the same frequency domain location at the time of retransmission.

[0073] •实施例八(如图fe所示) [0073] • the eighth embodiment (as shown in FIG fe)

[0074] UpPTS内有四个频域RACH,分别位于可用频带上边界、下边界及1/4、2/4频带处(上边界或下边界位于0/4频带处,以此类推),且UE在重传的时候应交替使用位于可用频带上边界、下边界及1/4、2/4频带处的RACH。 [0074] There are four frequency bands within the RACH UpPTS, the usable frequency bands are located in the boundary, a lower boundary and 1 / 4,2 / 4 at the frequency band (upper or lower boundary of the band located at 0/4, and so on), and UE when retransmission should be positioned alternately on the available frequency band boundary, RACH lower boundary and 1 / 4,2 / 4 at the frequency band.

[0075] •实施例九(如图恥所示) [0075] • according to a ninth embodiment (shown in FIG shame)

[0076] UpPTS内有四个频域RACH,分别位于可用频带上边界、下边界及1/4、2/4频带处(上边界或下边界位于0/4频带处,以此类推),且UE在重传的时候使用相同频域位置上的RACH。 [0076] There are four frequency bands within the RACH UpPTS, the usable frequency bands are located in the boundary, a lower boundary and 1 / 4,2 / 4 at the frequency band (upper or lower boundary of the band located at 0/4, and so on), and UE RACH is used on the same frequency domain location at the time of retransmission. 从以上的描述中。 From the above description.

[0077] •实施例十(如图6a所示) [0077] • tenth embodiment (FIG. 6a)

[0078] UpPTS内有四个频域RACH,两个位于上边界,另外两个位于下边界,且UE在重传的时候交替使用位于上边界及下边界的频域RACH信道。 [0078] There are four internal UpPTS RACH frequency domain, located on the boundary of two, when located in the two other boundary, and the UE retransmission alternately positioned on the frequency domain RACH channel boundary and the lower boundary. (相对位置不同)。 (Different relative positions).

[0079] •实施例i^一(如图乩所示) [0079] • i ^ one embodiment (shown in FIG mediums)

[0080] UpPTS内有四个频域RACH,两个位于上边界,另外两个位于下边界,且UE在重传的时候交替使用位于上边界及下边界的频域RACH信道。 [0080] There are four internal UpPTS RACH frequency domain, located on the boundary of two, when located in the two other boundary, and the UE retransmission alternately positioned on the frequency domain RACH channel boundary and the lower boundary. (相对位置相同)。 (The same relative position).

[0081] •实施例十二(如图6c所示) [0081] • twelfth embodiment (FIG. 6c)

[0082] UpPTS内有四个频域RACH,两个位于上边界,另外两个位于下边界,且UE在重传的时候使用相同频域位置上的RACH。 [0082] There are four internal UpPTS RACH frequency domain, located on the boundary of two, when located in the two other boundary, and the UE RACH retransmission using the same frequency domain location. [0083] 通过上述技术方案,本发明可以使RACH最大限度地获得频域分集效果,并且当UpPTS内只有一个RACH的时候,可以降低数据信道资源分配时的复杂度。 [0083] Through the above technical solution, the present invention can maximize the RACH frequency diversity effect is obtained, and when the UpPTS is only one of RACH, complexity can be reduced when the data channel resource allocation.

[0084] 显然,本领域的技术人员应该明白,上述的本发明的各模块或各步骤可以用通用的计算装置来实现,它们可以集中在单个的计算装置上,或者分布在多个计算装置所组成的网络上,可选地,它们可以用计算装置可执行的程序代码来实现,从而,可以将它们存储在存储装置中由计算装置来执行,或者将它们分别制作成各个集成电路模块,或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。 [0084] Obviously, those skilled in the art should understand that the modules or steps of the present invention described above can be used general-purpose computing device, they can be integrated in a single computing device or distributed across multiple computing devices available on the Internet, optionally, they can be implemented with program codes executable by a computing device, so that, to be performed by a computing device stored in a storage device, or they are made into integrated circuit modules, or they plurality of modules or steps are manufactured into a single integrated circuit module. 这样,本发明不限制于任何特定的硬件和软件结合。 Thus, the present invention is not limited to any particular hardware and software combination.

[0085] 以上所述仅为本发明的优选实施例而已,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。 [0085] The above description is only preferred embodiments of the present invention, it is 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保护范围之内。 Any modification within the spirit and principle of the present invention, made, equivalent substitutions, improvements, etc., should be included within the scope of the present invention.

Claims (10)

1. 一种时分双工系统中随机接入信道RACH的发送方法,其特征在于,包括以下步骤: 确定所述时分双工系统的UpPTS内的RACH的数目;当所述RACH是1个时,将所述1个RACH分配在可用频带的上边界或下边界; 当所述RACH是2个时,将所述2个RACH分别分配在所述可用频带的上边界及下边界;以及当所述RACH大于2个时,将其中的两个所述RACH分别分配在所述可用频带的上边界及下边界,将其它所述RACH基本均勻地分布在所述可用频带的所述两个RACH之间的频带上;或者将一部分的所述RACH分配在所述可用频带的上边界,将剩下的所述RACH分配在所述可用频带的下边界。 A time division duplex system random access channel RACH transmission method, characterized by comprising the steps of: determining the number of RACH in the UpPTS in the TDD system; when the RACH is a time, the RACH is assigned to an upper or lower boundary of the available frequency bands; when the RACH is 2 when the two RACH are allocated from the available frequency band upper boundary and a lower boundary; and when the when the RACH is greater than 2, wherein two of the respectively assigned on the RACH boundary and a lower boundary of the available frequency band, the RACH to the other substantially uniformly distributed between the two bands of the available RACH the band; or a portion of the RACH in allocating the available frequency band on the boundary, the remaining RACH is assigned at the boundary of the available frequency band.
2.根据权利要求1所述的发送方法,其特征在于,当所述RACH是1个时,还包括:将相邻的用于发送RACH的UpPTS内的RACH都放在所述可用频带的上边界。 The transmission method according to claim 1, wherein, when the RACH is a time, further comprising: adjacent to the RACH RACH in the UpPTS are transmitted on the available frequency band boundary.
3.根据权利要求1所述的发送方法,其特征在于,当所述RACH是1个时,还包括:将相邻的用于发送RACH的UpPTS内的RACH都放在所述可用频带的下边界。 The transmission method according to claim 1, wherein, when the RACH is a time, further comprising: adjacent to the RACH RACH in the UpPTS transmitted are placed in the available frequency band boundary.
4.根据权利要求1所述的发送方法,其特征在于,当所述RACH是1个时,还包括:将相邻的用于发送RACH的UpPTS内的RACH交替放在所述可用频带的上边界及下边界。 The transmission method according to claim 1, wherein, when the RACH is a time, further comprising: adjacent to the RACH RACH in the UpPTS transmitted alternately on the available frequency band boundary and lower boundary.
5.根据权利要求1所述的发送方法,其特征在于,当所述RACH是2个时,还包括: 用户设备在重传的时候交替使用位于上边界及下边界上的所述RACH。 The transmission method according to claim 1, wherein, when the RACH is a time 2, further comprising: a user equipment at the time of retransmission on the RACH alternately positioned on the boundary and the lower boundary.
6.根据权利要求1所述的发送方法,其特征在于,当所述RACH是2个时,还包括: 用户设备在重传的时候使用位于所述可用频带内的与上一次传输具有相同频域位置上的所述RACH。 6. The transmission method according to claim 1, wherein, when the RACH is a time 2, further comprising: user equipment using the first transmission on the available frequency bands lie within the same frequency at the time of retransmission the position on the domain RACH.
7.根据权利要求1所述的发送方法,其特征在于,当所述RACH大于2个,将其中的两个所述RACH分别分配在所述可用频带的上边界及下边界,将其它所述RACH基本均勻地分布在所述可用频带的所述两个RACH之间的频带上时,还包括:用户设备在重传的时候交替使用位于所述可用频带的不同频域位置上的所述RACH。 The transmission method according to claim 1, wherein, when the RACH is greater than 2, wherein two of the respectively assigned on the RACH boundary and a lower boundary of the available frequency band, and the other when the RACH substantially uniformly distributed over the frequency band of the available frequency band between the two RACH, further comprising: a user equipment at the time of retransmission of the RACH used alternately positioned on the frequency domain position of the different available frequency band .
8.根据权利要求1所述的发送方法,其特征在于,当所述RACH大于2个,将其中的两个所述RACH分别分配在所述可用频带的上边界及下边界,将其它所述RACH基本均勻地分布在所述可用频带的所述两个RACH之间的频带上时,还包括:用户设备在重传的时候使用位于所述可用频带内的与上一次传输具有相同频域位置上的所述RACH。 8. The transmission method according to claim 1, wherein, when the RACH is greater than 2, wherein two of the respectively assigned on the RACH boundary and a lower boundary of the available frequency band, and the other when the frequency band between the RACH substantially uniformly distributed in the RACH two available frequency band, further comprising: a user equipment at the time of retransmission using the available positioned with the last transmission in the frequency band having the same frequency domain location on the RACH.
9.根据权利要求1所述的发送方法,其特征在于,当所述RACH大于2个,将一部分的所述RACH分配在所述可用频带的上边界,将剩下的所述RACH分配在所述可用频带的下边界时,还包括:用户设备在重传的时候交替使用位于上边界及下边界的所述RACH。 9. The transmission method according to claim 1, wherein, when the RACH is greater than 2, the RACH is assigned on a boundary portion of the available frequency band, the remaining allocation of the RACH when said lower boundary of the available frequency band, further comprising: a user equipment when the alternate retransmitted RACH located on the boundary and the lower boundary.
10.根据权利要求1所述的发送方法,其特征在于,当所述RACH大于2个,将一部分的所述RACH分配在所述可用频带的上边界,将剩下的所述RACH分配在所述可用频带的下边界时,还包括:用户设备在重传的时候使用位于所述可用频带内的与上一次传输具有相同频域位置上的所述RACH。 10. The transmission method according to claim 1, wherein, when the RACH is greater than 2, the RACH is assigned on a boundary portion of the available frequency band, the remaining allocation of the RACH when the lower boundary of said available frequency band, further comprising: a user equipment at the time of retransmission using the available and located in the last transmission on the RACH band has the same frequency domain location.
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