200939669 九、發明說明： 【發明所屬之技術領域】 本發明係關於一種用於用信號發送參考符元之方法、一 種包括用於用信號發送參考符元之構件之無線電站台。更 具體言之，此發明在一實例中係關於一種如一 umts(通用 行動通信標準）或UMTS LTE(長期演進）系統之行動通信網 路。 【先前技術】 參考符元（又稱導頻符元）被提供於諸如umts lte之行 動通信系統中以用於數種不同用途。舉例而言，此等包含 提供一相位參考用於資料解碼、評估頻道品質，及評估待 應用於傳輸器之適當的預編碼。 不同的行動終端機可具有不同能力—例如，—些行動終 端機能夠處理來自更多個如M_系統中的傳輸器天線（其 可為"虛擬天線"-亦即複數個共同激發的實趙天線）之參考 符-，其中傳輸可在一天線陣列的幫助下於複數個流上完 成。若欲提供更多參考符元集合給能夠使用其之終端機， 則仍需將其存在通知其他不能利用其之終端機，因為其他 資料不可在料額外參考符元集合之該等符元上被接收。 在LTE之情形下，當前假定如下： 主廣播頻道(PBCH)之天線數目係藉由該行動終端 =多次盲目嘗試解碼該PBCH〜亦即在假定卜心根天 (來自各天線之相應參考符元)下嘗試將該解 " 驗CRC(循環冗餘竭校驗）以證實該假定而發 135723.doc 200939669 現0 使用與忒PBCH相同的一組天線（亦即，若N根天線被用 於該PBCH，則N根天線被用於控制發信號）來傳輸控制 發信號頻道。 將該等參考符元嵌入於特定時頻資源元素上之控制發信 號中》BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for signaling a reference symbol, a radio station including means for signaling a reference symbol. More specifically, this invention relates in one example to a mobile communication network such as a umts (Universal Mobile Communications Standard) or UMTS LTE (Long Term Evolution) system. [Prior Art] Reference symbols (also known as pilot symbols) are provided in a communication communication system such as umts lte for several different purposes. For example, these include providing a phase reference for data decoding, evaluating channel quality, and evaluating appropriate precoding to be applied to the transmitter. Different mobile terminals can have different capabilities - for example, some mobile terminals can handle transmitter antennas from more than one M_ system (which can be "virtual antennas" - that is, multiple co-excited The reference symbol of the real antenna - where the transmission can be done on a plurality of streams with the help of an antenna array. If you want to provide more reference symbols to the terminal that can use it, you still need to inform the other terminals that cannot use it, because other data cannot be used on the symbols of the extra reference symbol set. receive. In the case of LTE, the current assumptions are as follows: The number of antennas of the primary broadcast channel (PBCH) is determined by the mobile terminal = multiple blind attempts to decode the PBCH ~ ie, it is assumed that the heart is the same (the corresponding reference symbol from each antenna) ) Try to solve the CRC (Cyclic Redundancy Check) to verify the assumption and send 135723.doc 200939669 Now 0 uses the same set of antennas as the 忒PBCH (ie, if N antennas are used) The PBCH, then N antennas are used to control signaling) to transmit control signaling channels. Embedding the reference symbols in the control signaling on a particular time-frequency resource element
此等假定之推論係若網路希望使用4根天線用於任一行 動終端機以傳㈣料或頻道品質評#，則所有4根天線必 須使參考符it嵌人該控制頻道發信號中，且該控制發信號 亦將必須係傳輸自所有4根天線。 然而，存在钱入一傳輸中之特定數目組參考符元集合 (其中各參考符元集合相應於該傳㈣之―天線）之此假: 暗不所有集合必須用作為—相位參考以解碼該傳輸（因此 其必須係傳輸自與參考符元集合之數目相同的天線)，避 免不同終端機使用不同參考符元集合用於不同料之可能 性0 【發明内容】 更巧妙方式用信號 本發明之-目的係提議一種用於以一 發送參考信號之方法。 本發明之另一 不同用途之方法 本發明之再一 之無線電站台。 目的係提議一種用於實現該等參考符元之 〇 目的係提供一種能夠傳輸多用途參考符元 根據本發明 之 第—態樣，提議一種用於在 第一站台 135723.doc 200939669 與第-站口之間通信之方法，該方法包括在該第—站么 傳輸資料及複數組參考符元集合，且財法進—步包括: 該第-站台傳輸-用途指示符，㈣途指示符指示出 -站台使用該等參考符元集合之至少—集合之用途。 根據本發明之_第二態樣，提議一種無線電站台，副站 台包括用於接收一包含資料及複數組參考符元集合之信號 之構件’及決定構件’其係用於從一包含於該信號中之用 途指不#決定是否I決於該副#台之一能力而使用經指示 一用途之該等參考符元集合。 根據本發明之一第三態樣，提議一種主站台，該主站台 包括用於對一副站台傳輸資料、複數組參考符元集合及— 指示該副站台使用該等參考符元集合之至少一集合之用途 之用途指示符之構件。 因此，在根據本發明之系統中，提供發信號以指示複數 組參考符元集合之至少一些集合的存在及用途，以使具有 不同能力之不同行動終端機能夠使用所提供的參考符元集 合用於不同用途。這藉由在本發明之一些實施例中使用高 效率發信號而允許獲得使用該等參考符元的更大靈活性而 不導致太高的費用。而且，其允許避免誤用導頻信號，例 如將該等導頻信號用於使相位同步來代替用於評估頻道品 質。 本發明之此等及其他態樣在下文中將變得顯而易見，且 將參考下文所述之實施例說明本發明之此等及其他態樣。 【實施方式】 135723.doc 200939669 參考附圖，現將藉由實例更為詳細地描述本發明。 本發明係關於一如圈1所緣示之通信系統300，通信系統 300包括一主站台1〇〇(如一基地台）及至少一副站台200(如 行動台）。 無線電系統300可包括複數個主站台1〇〇及/或複數個副 站台200。該主站台1〇〇包括一傳輸器構件110及一接收構 件120。該傳輸器構件110之一輸出及該接收構件12〇之一 輸入係藉由一耦合構件140而予以耦合至一天線130或一包 括複數根天線之天線陣列’該耦合構件140可為例如一循 環器或一切換開關。控制構件1 50被耦合至該傳輸器構件 11 〇及接收構件120，該控制構件15〇可為例如一處理器》 該副站台200包括一傳輸器構件21〇及一接收構件220。該 傳輸器構件210之一輸出及該接收構件220之一輸入係藉由 一耦合構件240而予以耦合至一天線23〇或一包括複數根天 線之天線陣列’該耦合構件240可為例如一循環器或一切 換開關。控制構件250被耦合至該傳輸器構件21〇及接收構 件220，該控制構件250可為例如一處理器。自該主無線電 站台100至該副站台200之傳輸發生在一下行鏈路頻道“ο 上’且從該副無線電站台2〇〇至該第一無線電站台1〇〇之傳 輸發生在一上行鍵路頻道260上。 根據本發明之一實施例，該主站台傳輸複數組參考符元 集合或導頻信號集合。根據本發明，提議該傳輸站台（例 如該主站台）用信號發送參考符元之用途及其存在之一指 不符至該接收站台（例如該副站台）。此處，該主站台可為 135723.doc •9· 200939669 -基地台或-節點B。類似地’㈣站台可為一行動台或 一使用者設備。 口 這將使網路能夠對該行動終端機指示（例如）額外的參考 符元集合係存在的，但其將不用作為其被嵌入之信號之— 相位參考。此等額外的參考符元集合之其他用料被指示 、給具有以所要方式處理其之適當能力之若干特定組行動終 . 端機。 ' 特定實施例中，可在-廣播頻道上傳輸—單位元指 示符，該指示符指示出比被用作該控制發信號頻道之一相 位參考之參考符號集合之數目多更多組參考符元集合 被嵌入-控制發信號頻道中，其中M可被預定或藉由具有 -較慢的更新速率之不同發信號所指示。舉例而言，此不 同發信號可為較高層發信號。 作為對使用-廣播頻道用於此指示之—替代，相同資訊 可被包含在一該控制發信號頻道格式之經傳輸的指示中。 ❹ 在，先進的實施例中’可提供額外的發信號以指示何組 參考符兀集合係待用於不同用途，例如包含： -控制發信號之相位參考 * -資料之相位參考 . -頻道品質評估 •預編碼評估 言使二可處理更多組參考符元集合之行動終端機能 約將其等用作為一相位參考以將資料傳輸至該等終端機， 同時其他不具有此能力之行動終端機將能夠忽視該等額外 135723.doc 200939669 的參考符元集合，即使其等係嵌入在期望用於兩種類型的 終％機之該控制發信號中。因此，一行動台不盲目嘗試解 碼不同流上之參考信號。 本發明及其實施例可使用參考符元，尤其使用諸如 OFDM A之正父傳輸方案而在通信系統中予以實施，其中 參考符元係嵌入資料傳輸中，如UMTS LTE。 . 在本說明書及申請專利範圍中，在一元件前之詞"一 ❿ （a an)不排除存在複數個此種元件。此外，詞η包括 (compnsing)”不排除存在除該等所列之外的其他元件或步 驟。 申請專利範圍中於括弧中之參考符號之包含係旨在幫助 理解，且不旨在限制。 藉由閱讀本發明，其他修改對熟習此項技術者而言將係 顯而易見》此等修改可包括其他特徵，該等特徵早已在無 線電通信技術及傳輸器功率控制技術中為人所知，且可代 ❹ 替文中已述之特徵而使用或除文中已述之特徵之外而使 【圖式簡單說明】 圖1係一於其内實施本發明之系統之一方塊圖。 【主要元件符號說明】 100 主站台 110 傳輸器構件 120 接收構件 130 天線 135723.doc 200939669 140 耦合構件 150 控制構件 160 下行鏈路頻道 210 傳輸器構件 220 接收構件 230 天線 240 耦合構件 250 控制構件 260 上行鏈路頻道 300 通信系統/無線電系統The inference of these assumptions is that if the network wants to use 4 antennas for any mobile terminal to transmit (four) material or channel quality rating #, then all four antennas must have the reference symbol embedded in the control channel signal. And the control signal will also have to be transmitted from all 4 antennas. However, there is a certain number of sets of reference symbol sets in a transmission (where each reference symbol set corresponds to the "antenna" of the transmission (four)): the dark not all sets must be used as a phase reference to decode the transmission (Therefore, it must be transmitted from the same number of antennas as the set of reference symbols), to avoid the possibility that different terminal sets use different reference symbol sets for different materials. [Inventive content] In a more subtle way, the signal is used in the present invention - The purpose is to propose a method for transmitting a reference signal in one. Another Method of Use of the Invention Another radio station of the present invention. The purpose of the present invention is to provide a multi-purpose reference symbol capable of transmitting a multi-purpose reference symbol according to the first aspect of the present invention, and propose a method for the first station 135723.doc 200939669 and the first station. A method for communicating between ports, the method comprising transmitting a data and a complex array reference symbol set at the first station, and the method further includes: the first station transmission-purpose indicator, and (4) the way indicator indicating - The station uses at least the set of reference symbol sets - the purpose of the set. According to a second aspect of the present invention, a radio station is proposed, the sub-station comprising means for receiving a signal containing a set of data and a complex array of reference symbols and a decision component for use in a signal from The use of the reference means not determining whether or not to use one of the reference symbol sets indicating the use of one of the sub-stages. According to a third aspect of the present invention, a primary station is proposed, the primary station comprising means for transmitting data to a secondary station, a set of complex reference symbols, and indicating that the secondary station uses the set of reference symbols A component of a usage indicator for at least one set of uses. Thus, in a system in accordance with the present invention, a signal is provided to indicate the presence and use of at least some of a set of complex array reference symbol sets to enable different mobile terminals having different capabilities to use the provided set of reference symbols. For different purposes. This allows for greater flexibility in using the reference symbols without the use of high efficiency signaling in some embodiments of the invention without incurring too high a cost. Moreover, it allows to avoid misuse of pilot signals, such as using the pilot signals for phase synchronization instead of for evaluating channel quality. These and other aspects of the invention will be apparent from the description and appended claims. [Embodiment] 135723.doc 200939669 Referring to the drawings, the present invention will now be described in more detail by way of examples. The present invention is directed to a communication system 300 as illustrated by circle 1, which includes a primary station 1 (e.g., a base station) and at least one secondary station 200 (e.g., a mobile station). The radio system 300 can include a plurality of primary stations 1 and/or a plurality of secondary stations 200. The main station 1A includes a transmitter member 110 and a receiving member 120. One of the output of the transmitter member 110 and one of the input members of the receiving member 12 is coupled to an antenna 130 or an antenna array including a plurality of antennas by a coupling member 140. The coupling member 140 can be, for example, a loop Or a switch. The control member 150 is coupled to the transmitter member 11 and the receiving member 120, which may be, for example, a processor. The sub-station 200 includes a transmitter member 21A and a receiving member 220. One of the output of the transmitter member 210 and one of the input members of the receiving member 220 is coupled to an antenna 23 or an antenna array including a plurality of antennas by a coupling member 240. The coupling member 240 can be, for example, a loop Or a switch. Control member 250 is coupled to the transmitter member 21A and the receiving member 220, which may be, for example, a processor. The transmission from the primary radio station 100 to the secondary station 200 occurs on a downlink channel "o" and the transmission from the secondary radio station 2 to the first radio station 1 occurs on an uplink path Channel 260. According to an embodiment of the invention, the primary station transmits a complex array of reference symbol sets or pilot signal sets. According to the present invention, it is proposed that the transmitting station (e.g., the primary station) signal the reference symbols One of the uses and the existence thereof does not correspond to the receiving station (for example, the secondary station). Here, the primary station may be 135723.doc • 9· 200939669 - base station or - node B. Similarly, the '(four) station may Is a mobile station or a user device. This will enable the network to indicate to the mobile terminal, for example, that an additional set of reference symbols exists, but it will not be used as a signal for its embedding - phase reference The other materials of the additional set of reference symbols are indicated to be given to a number of specific sets of end-of-the-box machines with the appropriate capabilities to handle them in the desired manner. In a particular embodiment, the - broadcast channel is available Transmit-unit-element indicator indicating that more sets of reference symbol sets are embedded in the control-signal channel than the number of reference symbol sets used as one of the phase channels of the control signaling channel, where M Can be predetermined or indicated by a different signal having a slower update rate. For example, the different signal can be signaled for a higher layer. As a use-to-broadcast channel for this indication - instead, the same Information may be included in the transmitted indication of the control signal channel format. ❹ In the advanced embodiment, an additional signal may be provided to indicate which set of reference symbols are to be used for different purposes, such as Contains: - Controls the phase reference of the signal * - Phase reference of the data. - Channel quality evaluation • Precoding evaluation. The action terminal function that can handle more sets of reference symbols is used as a phase reference. Transferring data to these terminals, while other mobile terminals that do not have this capability will be able to ignore the reference symbol set of these additional 135723.doc 200939669 Even if it is embedded in the control signal intended for both types of end% machines, therefore, a mobile station does not blindly attempt to decode reference signals on different streams. The present invention and its embodiments may use reference symbols. In particular, it is implemented in a communication system using a positive parent transmission scheme such as OFDM A, wherein the reference symbol is embedded in a data transmission, such as UMTS LTE. In the scope of this specification and the patent application, the word "before a component" A a does not exclude the existence of a plurality of such elements. In addition, the word "compnsing" does not exclude the presence of other elements or steps other than those listed. The inclusion of the reference signs in parentheses in the scope of the claims is intended to be understood and is not intended to be limiting. Other modifications will be apparent to those skilled in the art from reading this disclosure. These modifications may include other features which are already known in the art of radio communication technology and transmitter power control. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of a system in which the present invention is implemented, in addition to or in addition to the features already described herein. [Main component symbol description] 100 main station 110 transmitter member 120 receiving member 130 antenna 135723.doc 200939669 140 coupling member 150 control member 160 downlink channel 210 transmitter member 220 receiving member 230 antenna 240 coupling member 250 control member 260 Uplink channel 300 communication system / radio system
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