CN101374000B - Initialization method for multi-input multi-output mode - Google Patents

Initialization method for multi-input multi-output mode Download PDF

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CN101374000B
CN101374000B CN 200710140491 CN200710140491A CN101374000B CN 101374000 B CN101374000 B CN 101374000B CN 200710140491 CN200710140491 CN 200710140491 CN 200710140491 A CN200710140491 A CN 200710140491A CN 101374000 B CN101374000 B CN 101374000B
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user
base station
mode
random access
access request
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CN 200710140491
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CN101374000A (en
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彭爱华
朱常青
李峰
梁枫
段亚军
赵楠
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中兴通讯股份有限公司
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Abstract

An initialization method of a multiple-input multiple-output (MIMO) mode comprises the following steps: (a) a user sends a random access request to a base station; (b) the base station selects a MIMO mode for the user according to the received random access request, adds an identification of the MIMO mode to a random access request response, and sends to the user; and (c) the user receives and resolves the identification of the MIMO mode in the random access request response. The inventive method can increase capacity and user access quantity of the system in case of large system load, so as to take equity into account, reduce cost, and better satisfy the requirements for quality of service (QoS).

Description

ー种多输入多输出模式初始化的方法ー species multiple-input, multiple output mode initialized

技术领域 FIELD

[0001] 本发明涉及支持多种多输入多输出模式的通信系统,尤其涉及ー种多输入多输出模式初始化的方法。 [0001] The present invention relates to supports multiple MIMO mode communication system, and particularly to multiple-input multiple kinds ー output mode initialized.

背景技术 Background technique

[0002] 多输入多输出(MIMO)系统可以在不增加系统带宽的情况下改善系统性能,在一定程度上对抗多径衰落,提高数据速率。 [0002] Multiple Input Multiple Output (MIMO) system can be improved without increasing the system bandwidth performance against multipath fading to some extent, improve the data rate. MMO技术已经成为下一代无线通信系统的关键技术之一,并且目前MMO系统的研究已经深入到多种模式中,例如单用户多输入多输出模式(SU-MIM0模式)和多用户多输入多输出模式(MU-MM0模式)。 MMO has become one of the key technologies of the next generation wireless communication systems, and the present study MMO system deep into various modes such as a single user multiple input multiple output mode (SU-MIM0 mode) and a multi-user multiple input multiple output mode (MU-MM0 mode).

[0003]为了使不同模式下的MIMO系统均达到最优性能,调度所需要的用户反馈信息(例如信道质量指示、预编码矩阵索引)有所不同,所以需要在用户进行这些信息反馈之前通知该用户其将会被调度为哪种MMO模式,即MMO模式的初始化,然后该用户会參考所通知的MMO模式来进行信息反馈。 [0003] In order for a MIMO system in different modes of user feedback reached optimal performance, the required schedule (e.g., Channel Quality Indication, a Precoding Matrix Index) is different, it is necessary to be notified prior to the user feedback information user MMO mode which it will be scheduled, i.e. MMO initialization mode, then the user is notified with reference to MMO mode to perform feedback.

[0004] 现有技术中,对于初始接入的用户,基站在完成随机接入过程之后才向该用户发送MMO模式初始化的信令,这样增加了用户与基站间的信令交互过程,増大了系统时延和用户的等待时间。 [0004] In the prior art, the user's initial access, the base station transmits only after completion of the random access procedure to the user MMO mode initialization signaling, thus increasing the signaling exchange between the base station and the user, enlargement of the big system latency and user waiting time.

发明内容 SUMMARY

[0005] 本发明要解决的技术问题是提供一种多输入多输出模式初始化的方法,使得用户在完成随机接入过程的同吋,也完成了其MMO模式的初始化的过程。 [0005] The present invention is to solve the technical problem of providing a method for multi-input multi-output mode initialized, such that a user with the completion of random access procedure inch, also completed its initialization process MMO mode.

[0006] 本发明采用的技术方案是: [0006] aspect of the present invention is that:

[0007] —种多输入多输出模式初始化的方法,包括以下步骤: [0007] - species MIMO mode initialization method, comprising the steps of:

[0008] a、用户向基站发送随机接入请求; [0008] a, the user transmits a random access request to the base;

[0009] b、基站根据接收到的上述随机接入请求,为用户选择多输入多输出模式,并将该模式的标识添加到上述随机接入请求响应中后,发送给用户; [0009] b, the base station based on the received random access request selected for the user MIMO mode, the mode is identified and added to the above-described random access request response transmitted to the user;

[0010] C、用户接收并解析出随机接入请求响应中的多输入多输出模式的标识。 [0010] C, and parses the user receives a random access response identifier MIMO mode request.

[0011] 进ー步地,步骤b中,基站根据以下因素中的一个或其任意组合为用户选择多输入多输出模式的类别:接入用户的数量或接入用户的状态或系统负载。 [0011] Step ー into step b, the base station based on the following factors, or any combination of the user to select a category MIMO mode to: access a user or the number of access users or system load state.

[0012] 进ー步地,还包括步骤d:用户根据解析出的多输入多输出模式的标识,判断出其初次接入时的模式类别。 [0012] step at the intake ー, further comprising the step d: the user according to the identifier parsing the MIMO mode, it is determined at the time of its initial mode type access.

[0013] 进ー步地,步骤d之后还包括步骤e:用户如接受基站为其分配的多输入多输出模式类别,则向基站进行信息反馈;否则,用户拒绝向基站进行信息反馈。 [0013] step at the intake ー, further comprising the step after step d e: The user accepts MIMO mode type assigned to the base station, the feedback information to a base station; otherwise, reject the user feedback information to the base station.

[0014] 进ー步地,步骤e中,用户向基站反馈的信息包括以下任意ー个或其组合:信道质量指示、预编码矩阵索引。 [0014] ー feed step at step e, the user feedback information to the base station include any one or combination ー: channel quality indicator, a precoding matrix index.

[0015] 采用本发明,能够在系统负载较大时提高系统的容量和接入用户的数量,照顾公平性,降低开销,井能更好的满足QoS(服务质量)要求。 [0015] According to the present invention, a system capable of carrying large capacity and increase the number of users access the system, care fairness, reduce overhead, the well can better meet QoS (Quality of Service) requirements. 附图说明 BRIEF DESCRIPTION

[0016] 图I为本发明实施例中MMO模式初始化的方法示意图。 MMO mode initialization method of embodiment [0016] Figure I a schematic view of the present invention.

具体实施方式 Detailed ways

[0017] 下面将结合附图及实施例对本发明的技术方案进行更详细的说明。 [0017] The accompanying drawings and the following technical scheme of the present invention in more detail with reference to Examples.

[0018] 本发明提供的一种多输入多输出模式初始化的方法,包括以下步骤: [0018] A multiple input multiple output mode of the invention provides a method of initialization, comprising the steps of:

[0019] a、用户向基站发送随机接入请求; [0019] a, the user transmits a random access request to the base;

[0020] b、基站在接收到随机接入请求后,按照其状态值(包括以下因素中的任意ー个或其任意组合:接入用户的数量或接入用户的状态(如服务质量Q0S)或系统负载等)为用户选择多输入多输出模式(如当接入用户的数量过多时,可以将该用户设为MU-MMO模式,但并不限于此模式),然后将该多输入多输出模式的标识添加进随机接入请求响应后,发送给用户; [0020] b, the base station after receiving the random access request, in accordance with its state values ​​(including any of these factors, or any combination ー one: access a user's status or the number of access users (e.g., A QoS Quality of Service) or system load, etc.) the user selects the MIMO mode (e.g., when an excessive number of access users, the user can set the MU-MMO mode, but is not limited to this mode), then the MIMO after identification mode add random access request response transmitted to the user;

[0021] C、用户接收并解析出随机接入请求响应多输入多输出模式的标识; [0021] C, and parse the user receives the random access request response identifier MIMO mode;

[0022] d、用户根据解析出的多输入多输出模式的标识,判断出其初次接入时的模式类别; [0022] d, the user according to the identifier parsing the MIMO mode, it is determined at the time of its initial mode type access;

[0023] e、如用户接受其所解析出的模式类别,则其向基站进行信息反馈,该信息包括信道质量指示或预编码矩阵索引或其组合等;否则,用户拒绝向基站进行信息反馈。 [0023] e, such as the user accepts the parsed pattern classes it is subjected to feedback to the base station, the channel quality indication information comprising a pre-coding matrix index or the like, or combinations thereof; otherwise, reject the user feedback information to the base station.

[0024] 下面以ー个同时支持SU-MMO模式和MU-MMO模式的系统为例进ー步加以说明。 [0024] In the following ー a support SU-MMO mode and MU-MMO system mode into ー further example will be described. 如图I所示,包括以下步骤: As shown in FIG. I, comprising the steps of:

[0025] I、基站接收到来自用户A的随机接入请求RAP_A ; [0025] I, the base station received the random access request from the user A RAP_A;

[0026] 2、如果基站检测到此时系统负载超过其预先设定的门限值,则将用户A设置为MU-MMO模式;如果基站检测到此时系统负载未达到某一门限值,则将用户A设置为SU-MIMO 模式; [0026] 2, if the base station when the system detects that the load exceeds a preset threshold, then the user A is set as MU-MMO mode; if the base station detects the load when the system does not reach a certain threshold value, A user will be set to SU-MIMO mode;

[0027] 3、如果基站将用户A设置为SU-MMO模式,则将用户A的MMO模式的标识设置为“0”,并在随机接入请求响应中进行发送; [0027] 3, if the user A to the base station SU-MMO mode, then the user identification MMO mode A is set to "0", and transmits the random access request response;

[0028] 如果基站将用户A设置为MU-MMO模式,则将用户A的MMO模式的标识设置为“1”,并在随机接入请求响应中进行发送; [0028] If the user A to the base station MU-MMO mode, then the user identification MMO mode A is set to "1", and transmits a random access request response;

[0029] 4、用户A接收到来自基站的随机接入请求响应后,若解析出其MIMO模式标识为“0”,则可以參考SU-MMO要求,对基站进行信息反馈,包括:信道质量指示CQI_SU和预编码矩阵索引PMI_SU ;若解析出其MIMO模式标识为“ I ”,则可以參考MU-MMO要求对基站进行信息反馈,包括:信道质量指示CQI_MU和预编码矩阵索引PMI_MU ;或者拒绝进行反馈(即不接受基站为其分配的MMO模式)。 [0029] 4, the user A receives the random access from the base station in response to a request, if parsing of its MIMO mode identified as "0", the reference may be SU-MMO requirements, the base station information feedback, comprising: a channel quality indication CQI_SU and a precoding matrix index PMI_SU; if parses its MIMO mode identified as "I", may refer to MU-MMO required for the base station to feedback information, comprising: a channel quality indication CQI_MU and the pre-coding matrix index PMI_MU; or reject feedback (i.e., not accepted MMO mode assigned to the base station).

[0030]当然,本发明还可有其他多种实施例,在不背离本发明精神及其实质的情况下,熟悉本领域的技术人员当可根据本发明作出各种相应的改变和变形,但这些相应的改变和变形都应属于本发明所附的权利要求的保护范围。 [0030] Of course, the present invention may have various other embodiments without departing from the spirit and the essence of the present invention, those skilled in the art can make various corresponding modifications and variations according to the present invention, but these corresponding changes and variations should fall within the scope of the appended claims.

Claims (3)

1. 一种多输入多输出模式初始化的方法,其特征在于,包括以下步骤: a、用户向基站发送随机接入请求; b、所述基站根据接收到的所述随机接入请求为所述用户选择多输入多输出模式,并将该模式的标识添加到所述随机接入请求响应中后,发送给所述用户; C、所述用户接收并解析出所述随机接入请求响应中的多输入多输出模式的标识; d、所述用户根据解析出的所述多输入多输出模式的标识,判断出其初次接入时的模式类别; 其中,步骤b中,所述基站根据以下因素中的一个或其任意组合为所述用户选择多输入多输出模式的类别:接入用户的数量或接入用户的状态或系统负载。 1. A method for multi-input multi-output mode initialization, characterized by comprising the steps of: a, the user transmits a random access request to the base station; B, the base station received the random access request according to the the user selects the MIMO mode, and adds the identification pattern to the random access request response after sending to the user; C, the user receives and parses the random access request response identifying multiple input multiple output mode; D, parsing said user input identifying the multi-multi-output mode according to the mode type determined during its initial access; wherein, in step b, the base station based on the following factors or any combination of a category selected MIMO mode for the user: the user's access or the access number of users or system load status.
2.如权利要求I所述的方法,其特征在于,步骤d之后还包括步骤e :所述用户如接受所述基站为其分配的所述多输入多输出模式类别,则向所述基站进行信息反馈;否则,所述用户拒绝向所述基站进行信息反馈。 2. The method according to claim I, characterized in that, after step d further comprises the step of e: the base station receiving the user as allocated by the MIMO mode type, is performed to the base station feedback; otherwise, reject the user feedback information to the base station.
3.如权利要求2所述的方法,其特征在于,步骤e中,所述用户向所述基站反馈的信息包括以下任意ー个或其组合:信道质量指示或预编码矩阵索引。 The method according to claim 2, wherein, in step e, the user feedback information to the base station comprises any one or a combination ー: channel quality indicator or a precoding matrix index.
CN 200710140491 2007-08-24 2007-08-24 Initialization method for multi-input multi-output mode CN101374000B (en)

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CN101692739B (en) * 2009-10-09 2015-05-20 中兴通讯股份有限公司 Method and device for indicating transmission mode
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CN1812386A (en) 2005-01-27 2006-08-02 松下电器产业株式会社 Quadrature frequency division multiplexing communication system with low-complexity and multi-user switching-in method

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