TW201304448A - Method for transmitting data in a communication system, first network node and second network node thereof - Google Patents
Method for transmitting data in a communication system, first network node and second network node thereof Download PDFInfo
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本發明係關於資料通訊,且更特定言之本發明係關於(但非限於)一無線電通訊系統中之頻道估測。 This invention relates to data communications, and more particularly to the invention, with respect to, but not limited to, channel estimation in a radio communication system.
若自一傳輸器傳輸一信號,則諸如散射、衰弱及/或功率衰減之若干效應可在一接收器之一位置處對所傳輸信號具有一影響。頻道狀態資訊(CSI=頻道狀態資訊)描述信號如何自傳輸器傳播至接收器。接收器處必須已知CSI以自所接收信號無錯誤地恢復資料,且傳輸器處必須已知CSI以針對當前頻道條件調適並最佳化進一步信號自傳輸器至接收器之一傳輸。CSI對達成傳輸器與接收器之間或包括若干傳輸器之一傳輸器系統與接收器之間之一可靠通訊極為重要,特別係對於多天線系統中諸如藉由CoMP系統(CoMP=多點協作)中應用之高資料速率。一當前頻道條件之短期知識係一所謂的瞬時CSI。瞬時CSI之一獲取受限於頻道條件改變之速度。在快速衰弱系統中,若頻道條件在兩個單一資訊符號之連續傳輸之間快速改變,則僅可應用一所謂的統計CSI。該統計CSI可提供一衰弱分佈類型的資訊、一平均頻道增益之資訊、一視線組件之資訊及/或一空間相關之資訊。實際通訊系統通常應用瞬時CSI與統計CSI之一混合。 If a signal is transmitted from a transmitter, several effects such as scatter, debilitation, and/or power attenuation can have an effect on the transmitted signal at one of the locations of the receiver. Channel status information (CSI = Channel Status Information) describes how the signal propagates from the transmitter to the receiver. The CSI must be known at the receiver to recover the data without error from the received signal, and the CSI must be known at the transmitter to adapt and optimize the further signal transmission from one of the transmitters to the receiver for the current channel conditions. CSI is extremely important for achieving reliable communication between a transmitter and a receiver or between one of several transmitters and receivers, especially for multi-antenna systems such as CoMP systems (CoMP = multi-point collaboration) High data rate for applications. The short-term knowledge of a current channel condition is a so-called instantaneous CSI. One of the instantaneous CSI acquisitions is limited by the speed at which the channel conditions change. In a fast debilitating system, if the channel condition changes rapidly between successive transmissions of two single information symbols, only a so-called statistical CSI can be applied. The statistical CSI can provide information on a weakly distributed type, information on an average channel gain, information on a line of sight component, and/or a spatially related information. The actual communication system usually uses a mixture of instantaneous CSI and statistical CSI.
通常在接收器處藉由對藉由傳輸器或藉由傳輸器系統傳輸之一所謂的訓練序列或導頻序列應用一量測來判定瞬時 CSI,其中已知接收器如何自傳輸器或傳輸器系統且藉由使用如傳輸器處或傳輸器系統處傳輸之訓練序列或導頻序列之組合知識及如接收器處接收之訓練序列或導頻序列之組合知識傳輸訓練序列或導頻序列。 The instantaneous determination is usually made at the receiver by applying a measurement to a so-called training sequence or pilot sequence transmitted by the transmitter or by the transmitter system. CSI, where it is known how the receiver self-transmits or the transmitter system and by using a combination of training sequences or pilot sequences transmitted at the transmitter or at the transmitter system and training sequences or derivatives received at the receiver The combined knowledge of the frequency sequences transmits a training sequence or a pilot sequence.
將資料自一傳輸器或一傳輸器系統傳輸至一接收器之方式及在接收器處執行頻道估測之方式影響一通訊系統之一頻譜效率及一總體資料速率。 The manner in which data is transmitted from a transmitter or a transmitter system to a receiver and the manner in which channel estimation is performed at the receiver affects one of the communication systems' spectral efficiency and an overall data rate.
因此,本發明之一目的係為改良通訊系統之頻譜效率及總體資料速率。該目的係藉由一種於一通訊系統中傳輸資料之方法達成。該通訊系統包括一第一網路節點。該方法包括以下步驟:在一第一時間間隔期間將一第一資料單元及關於該第一資料單元之第一參考信號自該第一網路節點傳輸至一第二網路節點;在時間上在該第一時間間隔後之至少一第二時間間隔期間將至少一第二資料單元及關於該至少一第二資料單元之至少第二參考信號自該第一網路節點傳輸至該第二網路節點;在該第二網路節點處基於該等第一參考信號及基於該至少一第二參考信號對該第一網路節點與該第二網路節點之間之一傳輸頻道判定一頻道估測;在該第二網路節點處基於該頻道估測恢復該第一資料單元及該至少一第二資料單元。較佳地,該判定步驟係基於該第一時間間隔及該至少一第二時間間隔內之一時間過濾或一時間平均化。 Accordingly, it is an object of the present invention to improve the spectral efficiency and overall data rate of a communication system. This object is achieved by a method of transmitting data in a communication system. The communication system includes a first network node. The method includes the steps of: transmitting a first data unit and a first reference signal for the first data unit from the first network node to a second network node during a first time interval; in time Transmitting at least one second data unit and at least a second reference signal for the at least one second data unit from the first network node to the second network during at least one second time interval after the first time interval a channel node; determining, at the second network node, a channel based on the first reference signal and a transmission channel between the first network node and the second network node based on the at least one second reference signal Estimating; recovering the first data unit and the at least one second data unit based on the channel estimate at the second network node. Preferably, the determining step is based on the first time interval and one of the at least one second time interval filtering or a time averaging.
該目的係進一步藉由諸如一基地台之一第一網路節點及 藉由諸如一行動台之一第二網路節點達成。 The object is further achieved by a first network node such as a base station and This is achieved by a second network node, such as one of the mobile stations.
根據本發明之方法提供改良該第一網路節點與該第二網路節點之間之傳輸頻道之一頻譜效率之一優點,尤其係在該第二網路節點處於一惡劣的SINR條件中時(SINR=信號對干擾加信雜比),諸如在一行動台位於兩個無線電小區之間之邊緣之一情況中。可達成該改良,此係因為頻道估測並未受諸如快速衰弱效應之短期效應太大影響,且因此可增加頻道估測之一精確度。藉由應用該方法於進一步第一網路節點與進一步第二網路節點之間之進一步傳輸頻道,可增加通訊系統之一總體資料速率而無需進一步無線電資源。此外,歸因於更精確的頻道估測,一鏈路調適可潛在地選擇較高調變及編碼方案,進一步增加系統之資料速率。若一預定義範圍中之相鄰頻率資源應用於該第一資料單元之傳輸及該至少一第二資料單元之該至少一進一步傳輸且若此等頻率資源之間存在一頻譜同調性(spectral coherence),則本發明已提供一頻道估測之一改良。此進一步容許用一單一頻道估測恢復至少兩個資料單元,而非用單獨頻道估測恢復每一資料單元。 The method according to the invention provides the advantage of improving the spectral efficiency of one of the transmission channels between the first network node and the second network node, in particular when the second network node is in a poor SINR condition (SINR = signal to interference plus signal ratio), such as in the case of a mobile station located in the edge between two radio cells. This improvement can be achieved because the channel estimate is not greatly affected by short-term effects such as fast debilitating effects, and thus one of the channel estimates can be increased in accuracy. By applying the method to further transmit channels between the further first network node and the further second network node, the overall data rate of one of the communication systems can be increased without further radio resources. In addition, due to more accurate channel estimation, a link adaptation can potentially select a higher modulation and coding scheme, further increasing the data rate of the system. If adjacent frequency resources in a predefined range are applied to the transmission of the first data unit and the at least one further transmission of the at least one second data unit and if there is a spectral coherence between the frequency resources (spectral coherence) ), the present invention has provided an improvement in one channel estimate. This further allows recovery of at least two data units with a single channel estimate, rather than restoring each data unit with a separate channel estimate.
而且,若該第一資料單元及該至少一第二資料單元已無錯誤地恢復,則該第二網路節點可傳輸一組合單一肯定應答,或若該第一資料單元及該至少一第二資料單元未無錯誤地恢復,則該第二網路節點可傳輸一組合單一否定應答。此容許減小自該第二網路節點至該第一網路節點之發信號訊務。 Moreover, if the first data unit and the at least one second data unit have been recovered without error, the second network node may transmit a combined single acknowledgement, or if the first data unit and the at least one second The data unit is recovered without error, and the second network node can transmit a combined single negative response. This allows for the reduction of signaling traffic from the second network node to the first network node.
根據一較佳實施例,該方法進一步包括將第一資訊自該第一網路節點傳輸至該第二網路節點之步驟,且該第一資訊指導該第二網路節點執行該判定步驟及該恢復步驟。該第一資訊之傳輸指導該第二網路節點在該第二網路節點處可使用資料單元之下一個傳輸以對此等資料單元判定一總體頻道估測,且對該第二網路節點告知該第一網路節點未預期即刻接收對每一資料單元之一肯定或否定應答。若該第一資訊未自該第一網路節點傳輸至該第二網路節點,則該第一網路節點預期藉由即刻執行頻道估測在該第二網路節點處之一共同處理及接收一單一資料單元後之一資料恢復。 According to a preferred embodiment, the method further includes the step of transmitting the first information from the first network node to the second network node, and the first information directs the second network node to perform the determining step and This recovery step. Transmitting the first information directs the second network node to use the next transmission of the data unit at the second network node to determine an overall channel estimate for the data unit, and to the second network node The first network node is informed that it is not expected to receive a positive or negative acknowledgement for each of the data units. If the first information is not transmitted from the first network node to the second network node, the first network node is expected to perform co-processing at one of the second network nodes by performing channel estimation immediately Data recovery after receiving a single data unit.
根據一進一步較佳實施例,在與應用於3GPP LTE(3GPP=第三代行動通訊夥伴合作計畫;LTE=長期演進)中相同之一頻率資源(諸如12個相鄰副載波及一時間長度為0.5毫秒之一PRB(PRB=實體資源區塊))上傳輸該第一資料單元及該至少一第二資料單元。在此一情況中,相鄰頻率資源之間之頻譜同調性問題不大且因此可忽略。藉此,頻道估測甚至更加可靠。而且,該第二網路節點處之接收器無須在該第一資料單元與該至少一第二資料單元之接收之間調諧,從而容許該第一資料單元及該至少一第二資料單元之一傳輸序列更短。在一更進一步較佳實施例中,該第一資訊包括在該第一時間間隔及該至少一第二時間間隔相同頻率資源之一指示。藉此,可減小用於指示頻率資源之發信號資源。 According to a further preferred embodiment, the same frequency resource (such as 12 adjacent subcarriers and a time length) is used in the same application as 3GPP LTE (3GPP=3rd Generation Mobile Communication Partnership Project; LTE=Long Term Evolution) The first data unit and the at least one second data unit are transmitted on one of 0.5 milliseconds PRB (PRB=physical resource block). In this case, the spectral homology problem between adjacent frequency resources is small and therefore negligible. In this way, channel estimation is even more reliable. Moreover, the receiver at the second network node does not need to be tuned between the reception of the first data unit and the at least one second data unit, thereby allowing one of the first data unit and the at least one second data unit The transmission sequence is shorter. In a still further preferred embodiment, the first information includes an indication of one of the same frequency resources at the first time interval and the at least one second time interval. Thereby, the signaling resource for indicating the frequency resource can be reduced.
在一更進一步較佳實施例中,該通訊系統進一步包括一第三網路節點,且該方法進一步包括以下步驟:在該第一網路節點處自該第三網路節點接收第二資訊,該第二資訊指示在該第一時間間隔及該至少一第二時間間隔在該第三網路節點處使用無線電資源;及將該第二資訊自該第一網路節點傳輸至該第二網路節點。此更進一步較佳實施例提供對該第二網路節點告知關於該第一網路節點之一相鄰網路節點處之資源分配之優點。該第二網路節點可使用該第二資訊以改良估測干擾性質(干擾功率、空間共變異等等)之一精確度並藉此改良頻道估測。 In a still further preferred embodiment, the communication system further includes a third network node, and the method further comprising the step of receiving the second information from the third network node at the first network node, The second information indicates that the radio resource is used at the third network node at the first time interval and the at least one second time interval; and transmitting the second information from the first network node to the second network Road node. This still further preferred embodiment provides the advantage of informing the second network node about resource allocations at neighboring network nodes of the first network node. The second network node can use the second information to improve the accuracy of estimating one of the interference properties (interference power, spatial co-variation, etc.) and thereby improve channel estimation.
在一進一步實施例中,若於該通訊系統中應用空間波束成形,則該第三網路節點可包括一天線陣列,且該第二資訊進一步指示對相同頻率資源且在該第一時間間隔及該至少一第二時間間隔使用應用於該天線陣列之相同預編碼權重。該進一步實施例容許提供資訊給該第二網路節點,該資訊係:在該第一時間間隔及該至少一第二時間間隔期間來自該第三網路節點之定向干擾將不會發生變化。 In a further embodiment, if spatial beamforming is applied in the communication system, the third network node may include an antenna array, and the second information further indicates to the same frequency resource and at the first time interval and The at least one second time interval uses the same precoding weights applied to the antenna array. The further embodiment allows for information to be provided to the second network node, the information being that the directional interference from the third network node will not change during the first time interval and the at least one second time interval.
根據一進一步較佳實施例,在包括一單一MAC標頭之單一傳送區塊中傳輸該第一資料單元及該至少一第二資料單元。該進一步較佳實施例提供節省MAC發信號附加項(MAC=媒體存取控制)之優點,且亦較佳地提供節省RLC發信號附加項之優點(RLC=無線電鏈路控制)。 According to a further preferred embodiment, the first data unit and the at least one second data unit are transmitted in a single transport block comprising a single MAC header. The further preferred embodiment provides the advantage of saving MAC signaling add-on (MAC = Medium Access Control) and also preferably provides the advantage of saving RLC signaling additions (RLC = Radio Link Control).
較佳地,該方法進一步包括在該第一網路節點處接收第三資訊之步驟,且該第三資訊指示該第二網路節點執行該 判定步驟之一能力。藉此,該第一網路節點獲得連接至該第一網路節點之第二網路節點能夠執行關於傳輸頻道之接收器側之本發明之方法之步驟之知識。可藉由一新的終端機類別提供本發明之特徵,且該第三資訊可包括該新的終端機類別。該第三資訊可藉由(例如)該第二網路節點(一上行鏈路方向上之一行動台)提供給一基地台。 Preferably, the method further comprises the step of receiving third information at the first network node, and the third information instructing the second network node to perform the One of the steps to determine the ability. Thereby, the first network node obtains knowledge that the second network node connected to the first network node is capable of performing the steps of the method of the invention on the receiver side of the transmission channel. The features of the present invention may be provided by a new terminal category, and the third information may include the new terminal category. The third information can be provided to a base station by, for example, the second network node (one of the mobile stations in the uplink direction).
根據若干替代性實施例,該方法進一步包括驗證是否應執行該分配步驟之步驟,且該驗證係基於以下需要之至少一者:已在該第一網路節點處接收到該第三資訊;在該第二網路節點處用於恢復該第一資料單元及該至少一第二資料單元之至少一第一者之一時間延遲等於或低於一第一預定義臨限值;用於該第一資料單元及該至少一第二資料單元之一服務之一資料速率等於或高於一第二預定義臨限值;以一多點傳輸模式自至少兩個天線系統傳輸該第一資料單元及該至少一第二資料單元;在該第二網路節點處用於接收該第一資料單元及該至少一第二資料單元之一信號干擾比等於或低於一第三預定義臨限值。該第一網路節點可應用上文給定之一或若干準則以判決是否應針對於資料自該第一網路節點至該第二網路節點之傳輸應用本發明方法。此容許在本發明之方法與未對若干資料單元使用若干連續傳輸資源之一單一分配且未使用涵蓋關於若干資料單元之參考信號之頻道估測之一判定之一共同傳輸方法之間靈活地進行切換。 According to several alternative embodiments, the method further comprises verifying whether the step of the assigning step should be performed, and the verifying is based on at least one of the following: the third information has been received at the first network node; The second network node is configured to restore a time delay of one of the first data unit and the at least one second data unit to be equal to or lower than a first predefined threshold; And a data rate of one of the data unit and the at least one second data unit is equal to or higher than a second predefined threshold; transmitting the first data unit from the at least two antenna systems in a multi-point transmission mode and The at least one second data unit is configured to receive, at the second network node, a signal to interference ratio of the first data unit and the at least one second data unit that is equal to or lower than a third predefined threshold. The first network node may apply one or more criteria given above to determine whether the method of the present invention should be applied for transmission of data from the first network node to the second network node. This allows for flexible flexibility between the method of the present invention and a method of co-transmission that does not use a single allocation of one of several consecutive transmission resources for a number of data units and does not use one of the channel estimates covering the reference signals for a number of data units. Switch.
在本發明之下列實施方式中定義並描述本發明之進一步 有利特徵。 Further aspects of the invention are defined and described in the following embodiments of the invention Favorable features.
在下列實施方式中將明白本發明之實施例且將藉由憑藉非限制性圖解方式給定之隨附圖式圖解本發明之實施例。 Embodiments of the present invention will be described in the following embodiments, which are illustrated by way of non-limiting illustration.
圖1展示包括根據本發明之一例示性實施例之一無線電存取網路RAN1之一無線電通訊系統RCS1。為簡單起見未展示該無線電通訊系統RCS1之核心網路及該無線電通訊系統RCS1至進一步無線電通訊系統、至網際網路或至固線式通訊系統之連接。 1 shows a radio communication system RCS1 including one of the radio access networks RAN1 in accordance with an exemplary embodiment of the present invention. For the sake of simplicity, the core network of the radio communication system RCS1 and the connection of the radio communication system RCS1 to further radio communication systems, to the internet or to the fixed line communication system are not shown.
該無線電通訊系統RCS1可為(例如)使用OFDM(OFDM=正交分頻多工)之一3GPP LTE無線電通訊網路。在進一步替代中,該無線電通訊系統RCS1可為(例如)一3GPP UMTS無線電通訊網路(UMTS=全球行動電信系統)、基於IEEE 802.16標準家族(IEEE=電機電子工程師協會)之一WiMAX無線電通訊網路(WiMAX=全球互通微波存取)或基於IEEE 802.11標準家族之一無線區域網路(WLAN=無線區域網路)。 The radio communication system RCS1 can be, for example, a 3GPP LTE radio communication network using OFDM (OFDM = Orthogonal Frequency Division Multiplexing). In a further alternative, the radio communication system RCS1 can be, for example, a 3GPP UMTS radio communication network (UMTS=Global Mobile Telecommunications System), based on the IEEE 802.16 family of standards (IEEE = Institute of Electrical and Electronics Engineers) WiMAX radio communication network ( WiMAX = Global Interoperability for Microwave Access) or one of the IEEE 802.11 family of standards (WLAN = Wireless Area Network).
該無線電存取網路RAN1例示性地包括一第一基地台BS1、一第二基地台BS2及介於該第一基地台BS1與該第二基地台BS2之間之一傳輸路徑L。該傳輸路徑L可為(例如)3GPP LTE中應用之一X2介面。 The radio access network RAN1 illustratively includes a first base station BS1, a second base station BS2, and a transmission path L between the first base station BS1 and the second base station BS2. The transmission path L can be, for example, one of the applications in the 3GPP LTE X2 interface.
術語「基地台」可被視為一基地收發器台、節點B、增強型節點B、存取點等等之同義詞及/或被稱為一基地收發器台、節點B、增強型節點B、存取點等等,且可描述經 由一或多個無線電鏈路提供無線連接性給一或多個行動台之設備。 The term "base station" can be taken as a synonym for a base transceiver station, a Node B, an enhanced Node B, an access point, etc. and/or as a base transceiver station, a Node B, an enhanced Node B, Access point, etc., and can describe A device that provides wireless connectivity to one or more mobile stations by one or more radio links.
為簡單起見未展示進一步基地台、介於該等基地台之間之進一步連接及介於該等基地台與核心網路之網路節點之間之連接。 For the sake of simplicity, no further base stations, further connections between the base stations, and connections between the base stations and the network nodes of the core network are shown.
該第一基地台BS1包括(例如)一主控單元BS-MU、具有諸如一功率放大器之主動元件之一第一遠端無線電頭端RRH1(RRH=遠端無線電頭端)、介於該第一基地台BS1與該第一RRH RRH1之間之一第一傳輸路徑BS1-L1及經定位接近不具備主動元件之第一基地台RAN1-BS且直接連接至該第一基地台RAN1-BS之一第一天線系統BS1-AS。替代地,該第一基地台BS1包括直接連接至該第一基地台RAN1-BS之一個以上RRH及/或一個以上天線系統。 The first base station BS1 includes, for example, a main control unit BS-MU having one of the first remote radio heads RRH1 (RRH=remote radio head) of an active component such as a power amplifier. a first transmission path BS1-L1 between a base station BS1 and the first RRH RRH1 and a first base station RAN1-BS located adjacent to the non-active component and directly connected to the first base station RAN1-BS A first antenna system BS1-AS. Alternatively, the first base station BS1 comprises one or more RRHs and/or more than one antenna system directly connected to the first base station RAN1-BS.
該第一天線系統BS1-AS可包括(例如)兩個天線元件。替代地,該第一天線系統BS1-AS可包括兩個以上天線元件,諸如四個天線元件。 The first antenna system BS1-AS may comprise, for example, two antenna elements. Alternatively, the first antenna system BS1-AS may comprise more than two antenna elements, such as four antenna elements.
該第一傳輸路徑BS1-L1可基於(例如)CPRI標準(CPRI=通用公共無線電介面)。 The first transmission path BS1-L1 may be based, for example, on the CPRI standard (CPRI = General Public Radio Interface).
該第一RRH RRH1包括一第一從屬單元RRH-SU及連接至該第一從屬單元RRH-SU之一第二天線系統RRH1-AS。該第二天線系統RRH1-AS可包括(例如)兩個天線元件,且可為一被動天線陣列或一主動天線陣列。在一主動天線陣列中,完整的RF收發器可被整合於每一天線元件中,且該等天線元件係經堆疊以形成該主動天線陣列。 The first RRH RRH1 includes a first slave unit RRH-SU and a second antenna system RRH1-AS connected to the first slave unit RRH-SU. The second antenna system RRH1-AS may comprise, for example, two antenna elements, and may be a passive antenna array or an active antenna array. In an active antenna array, a complete RF transceiver can be integrated into each antenna element and the antenna elements are stacked to form the active antenna array.
在一被動天線陣列中,該等RF收發器與該等天線元件分離。 In a passive antenna array, the RF transceivers are separated from the antenna elements.
替代地,該第二天線系統RRH1-AS可包括兩個以上天線元件,諸如四個天線元件。 Alternatively, the second antenna system RRH1-AS may comprise more than two antenna elements, such as four antenna elements.
該第一天線系統BS1-AS對一第一無線電小區BS-Cell-1提供無線涵蓋範圍,且該第二天線系統RRH1-AS對一第二無線電小區RRH-Cell-2提供無線涵蓋範圍。 The first antenna system BS1-AS provides wireless coverage for a first radio cell BS-Cell-1, and the second antenna system RRH1-AS provides wireless coverage for a second radio cell RRH-Cell-2 .
術語「無線電小區」可被視為小區、無線電扇區、扇區等等之同義詞及/或被稱為小區、無線電扇區、扇區等等。 The term "radio cell" can be taken to mean a synonym for a cell, a radio sector, a sector, etc. and/or as a cell, a radio sector, a sector, and the like.
該第二基地台BS2包括一第二從屬單元BS-SU及連接至該第二從屬單元BS-SU之一第三天線系統BS2-AS。該第三天線系統BS2-AS可包括兩個天線元件,且提供對一第三無線電小區BS-Cell-3之無線涵蓋區域。在進一步替代例中,該第二基地台BS2可包括一個以上天線系統,且該第三天線系統BS2-AS可包括兩個以上天線元件,諸如四個天線元件。 The second base station BS2 includes a second slave unit BS-SU and a third antenna system BS2-AS connected to one of the second slave units BS-SU. The third antenna system BS2-AS may comprise two antenna elements and provide a wireless coverage area for a third radio cell BS-Cell-3. In a further alternative, the second base station BS2 may comprise more than one antenna system, and the third antenna system BS2-AS may comprise more than two antenna elements, such as four antenna elements.
該第一無線電小區BS-Cell-1及該第二無線電小區RRH-Cell-2可經組態以成為一協作叢集CC之部分,且藉此藉由該主控單元BS-MU控制該第一從屬單元RRH-SU。 The first radio cell BS-Cell-1 and the second radio cell RRH-Cell-2 may be configured to be part of a cooperative cluster CC, and thereby the first unit is controlled by the master unit BS-MU Slave unit RRH-SU.
在進一步替代例中,兩個或兩個以上無線電小區可經組態以成為該協作叢集CC之部分。 In a further alternative, two or more radio cells may be configured to be part of the cooperating cluster CC.
術語「協作叢集」可被視為協作集合、協作集合、CoMP叢集、叢集等等之同義詞及/或被稱為協作集合、協 作集合、CoMP叢集、叢集等等,且可描述可協作上行鏈路射頻信號至一或多個行動台之一聯合傳輸之一無線電通訊系統之兩個或兩個以上天線元件。 The term "collaboration cluster" can be thought of as a synonym for collaborative collections, collaborative collections, CoMP clusters, clusters, etc. and/or called collaborative collections, associations. As sets, CoMP clusters, clusters, etc., and may describe two or more antenna elements of a radio communication system that can cooperatively uplink RF signals to one of one or more mobile stations.
較佳地,可基於在該無線電通訊系統RCS1之基地台BS1、BS2處執行之分佈型自組態演算法選擇無線電小區分別屬於該協作叢集CC之天線陣列。該等自組態演算法可基於(例如)對位於該等無線電小區BS-Cell-1、RRH-Cell-2及RRH-Cell-3及該無線電通訊系統RCS1之天線系統BS1-AS、RRH1-AS及BS2-AS之涵蓋範圍區域內之特定位置處之行動台之間之路徑損耗之長期量測。 Preferably, the antenna arrays to which the radio cells belong to the cooperative cluster CC are selected based on a distributed self-configuration algorithm executed at the base stations BS1, BS2 of the radio communication system RCS1. The self-configuring algorithms may be based, for example, on antenna systems BS1-AS, RRH1- located in the radio cells BS-Cell-1, RRH-Cell-2, and RRH-Cell-3 and the radio communication system RCS1. Long-term measurement of path loss between mobile stations at specific locations within the coverage area of AS and BS2-AS.
在一替代例中,可藉由該無線電通訊系統RCS1之一O&M網路節點(O&M=操作及維護)(為簡單起見圖1中未展示)組態該協作叢集CC。一行動台MS可位於該協作叢集CC之一總體涵蓋範圍區域內。 In an alternative, the cooperative cluster CC can be configured by an O&M network node (O&M = Operation and Maintenance) of the radio communication system RCS1 (not shown for simplicity). A mobile station MS can be located within an overall coverage area of one of the collaborative clusters CC.
術語「行動台」可被視為一行動單元、行動使用者、存取終端機、使用者設備、用戶、使用者、遠端台等等之同義詞,且此後偶爾可被稱為一行動單元、行動使用者、存取終端機、使用者設備、用戶、使用者、遠端台等等。該行動台MS可為(例如)一蜂巢式電話、一可攜式電腦、一口袋型電腦、一手持式電腦、一個人數位助理或一車載式行動裝置。 The term "mobile station" can be taken as a synonym for an action unit, an action user, an access terminal, a user device, a user, a user, a remote station, etc., and may occasionally be referred to as an action unit, Mobile users, access terminals, user devices, users, users, remote stations, and more. The mobile station MS can be, for example, a cellular phone, a portable computer, a pocket computer, a handheld computer, a number of assistants, or a vehicle-mounted mobile device.
在自該協作叢集CC至該行動台MS之一下行鏈路方向上,全部該等無線電小區或該協作叢集CC之無線電小區BS-Cell-1及RRH-Cell-2之一子組可經由一下行鏈路MIMO 傳輸(MIMO=多輸入多輸出)或一下行鏈路MISO傳輸(MISO=多輸入單輸出)以一多點傳輸模式傳輸包括用於發信號資訊至該行動台MS或用於一使用者服務(諸如在該行動台MS上運行之一視訊下載)之資料單元之下行鏈路射頻信號。 In a downlink direction from the cooperative cluster CC to the mobile station MS, all of the radio cells or a subset of the radio cells BS-Cell-1 and RRH-Cell-2 of the cooperative cluster CC may be accessed via Line link MIMO Transmission (MIMO = Multiple Input Multiple Output) or Downlink MISO Transmission (MISO = Multiple Input Single Output) transmitted in a multipoint transmission mode including signalling information to the mobile station MS or for a user service ( A downlink radio frequency signal is transmitted under a data element such as one of the video downloads running on the mobile station MS.
根據本發明,該第一基地台RAN1-BS之主控單元BS-MU對傳輸至該行動台MS之一第一資料單元之一傳輸分配一第一時間間隔及對傳輸至該行動台MS之一或若干進一步資料單元之一或若干進一步傳輸分配一或若干進一步時間間隔。接著,該第一基地台RAN1-BS傳輸該第一資料單元至(例如)該協作叢集CC之全部天線系統BS1-AS、RRH1-AS,且全部該等天線系統BS1-AS、RRH1-AS將該第一資料單元連同該第一時間間隔中之第一參考信號一起傳輸至該行動台MS。在此之後,該第一基地台RAN1-BS可傳輸該一或若干進一步資料單元至該協作叢集CC之全部天線系統BS1-AS、RRH1-AS,且全部該等天線系統BS1-AS、RRH1-AS將該一或若干進一步資料單元連同進一步參考信號傳輸至行動台MS。替代地,該第一基地台RAN1-BS可將該第一資料單元與該一或若干進一步資料單元同時傳輸至該協作叢集CC之全部天線系統BS1-AS、RRH1-AS。 According to the invention, the main control unit BS-MU of the first base station RAN1-BS allocates a first time interval to the transmission of one of the first data units of the mobile station MS and transmits it to the mobile station MS. One or several further time intervals are assigned to one or several further data units. Then, the first base station RAN1-BS transmits the first data unit to, for example, all antenna systems BS1-AS, RRH1-AS of the cooperative cluster CC, and all of the antenna systems BS1-AS, RRH1-AS will The first data unit is transmitted to the mobile station MS along with the first reference signal in the first time interval. After that, the first base station RAN1-BS can transmit the one or more further data units to all antenna systems BS1-AS, RRH1-AS of the cooperative cluster CC, and all of the antenna systems BS1-AS, RRH1- The AS transmits the one or more further data units together with further reference signals to the mobile station MS. Alternatively, the first base station RAN1-BS may simultaneously transmit the first data unit and the one or more further data units to all antenna systems BS1-AS, RRH1-AS of the cooperative cluster CC.
接收該第一資料單元連同該等第一參考信號並接收該一或若干進一步資料單元連同該等進一步參考信號之行動台MS基於該等第一參考信號及該等進一步參考信號對該協作叢集CC與該行動台MS之間之一傳輸頻道判定一頻道估 測。 The mobile station MS receiving the first data unit together with the first reference signals and receiving the one or more further data units together with the further reference signals is based on the first reference signals and the further reference signals to the cooperative cluster CC One channel estimation between the transmission channel and the mobile station MS Measurement.
亦可在受控於該無線電通訊系統RCS1之一基地台之一單一無線電小區與該行動台MS之間應用對該第一資料單元及該一或若干進一步資料單元之時間間隔之此分配及本發明之頻道估測之此一判定,且藉此本發明之一應用非限於一CoMP通訊系統。 The allocation and the time interval between the first data unit and the one or more further data units may also be applied between a single radio cell controlled by one of the base stations of the radio communication system RCS1 and the mobile station MS. This determination of the inventive channel estimate, and whereby one of the applications of the present invention is not limited to a CoMP communication system.
關於圖2給定本發明之更多細節。 Further details of the invention are given with respect to Figure 2.
參考圖2,展示根據若干替代性實施例之一方法MET1之一流程圖。用於執行該方法MET1之步驟數目非關鍵,且可如熟習此項技術者所瞭解,可改變步驟數目及該等步驟之順序而未脫離本發明之範疇。亦可同時執行一些該等步驟,例如,步驟M1/3及M1/5或步驟M1/8及M1/10。關於圖1中所示之網路節點展示該方法MET1。 Referring to Figure 2, a flow diagram of a method MET1 in accordance with one of several alternative embodiments is shown. The number of steps used to perform the method MET1 is not critical, and the number of steps and the order of the steps may be varied without departing from the scope of the invention as would be appreciated by those skilled in the art. Some of these steps can also be performed simultaneously, for example, steps M1/3 and M1/5 or steps M1/8 and M1/10. The method MET1 is shown with respect to the network node shown in FIG.
在一第一選用步驟M1/1中,該行動台MS可傳輸能力資訊CAP-INFO至該第一基地台BS1,且在一第二選用步驟M1/2中,該第一基地台BS1接收該能力資訊CAP-INFO。該能力資訊CAP-INFO藉由(例如)使用一位元旗標指示該行動台MS在兩個或兩個以上時間間隔之一時間訊框內執行一頻道估測之一能力,在該等時間間隔中可自該無線電通訊系統RCS1傳輸兩個或兩個以上資料單元至該行動台MS。該時間間隔可為(例如)對應於諸如3GPP LTE中應用之一所謂的子訊框之1毫秒之一TTI(TTI=傳輸時間間隔)。此意謂該行動台MS必須能夠儲存資料單元及參考信號,諸如連續TTI之信標或導頻。當該行動台MS執行對該無線 電通訊系統RCS1之註冊及鑑認時,可在一時間點自該行動台MS傳輸該能力資訊CAP-INFO。在一替代例中,當該行動台MS執行針對一新地點區域或新路由區域之一定位更新時,可在一時間點自該行動台MS傳輸該能力資訊CAP-INFO。在一進一步替代例中,當該行動台MS在該第一基地台BS1之控制下執行對一無線電小區之一交遞時,可在一時間點自該行動台MS傳輸該能力資訊CAP-INFO。在一更進一步替代例中,在用於該行動台MS之一註冊及鑑認程序期間在該第一基地台BS1處自一HLR(HLR=本籍位置註冊器)或VLR(VLR=訪問者位置註冊器)擷取該能力資訊CAP-INFO。若全部行動台支援此一能力,則無須傳輸該能力資訊CAP-INFO。 In a first optional step M1/1, the mobile station MS can transmit the capability information CAP-INFO to the first base station BS1, and in a second optional step M1/2, the first base station BS1 receives the Capability information CAP-INFO. The capability information CAP-INFO indicates, by, for example, using a one-bit flag, the capability of the mobile station MS to perform a channel estimation in one of two or more time intervals, at which time Two or more data units can be transmitted from the radio communication system RCS1 to the mobile station MS in the interval. The time interval may be, for example, one TTI (TTI = Transmission Time Interval) corresponding to 1 millisecond of a so-called subframe of one of the applications in 3GPP LTE. This means that the mobile station MS must be able to store data units and reference signals, such as beacons or pilots of consecutive TTIs. When the mobile station MS performs the wireless When the electrical communication system RCS1 is registered and authenticated, the capability information CAP-INFO can be transmitted from the mobile station MS at a time point. In an alternative, the capability information CAP-INFO may be transmitted from the mobile station MS at a point in time when the mobile station MS performs a location update for one of the new location area or the new routing area. In a further alternative, when the mobile station MS performs handover to one of the radio cells under the control of the first base station BS1, the capability information CAP-INFO may be transmitted from the mobile station MS at a time point. . In a still further alternative, at the first base station BS1 during an registration and authentication procedure for the mobile station MS, an HLR (HLR = Home Location Register) or VLR (VLR = Visitor Location) The registrar) retrieves the capability information CAP-INFO. If all mobile stations support this capability, there is no need to transmit the capability information CAP-INFO.
在下一個選用步驟M1/3中,該第一基地台BS1可自該無線電通訊系統RCS1之一核心網路節點接收資料D。該資料D可為(例如)使用者資料,諸如用於在該行動台MS運行之一服務之一IPv4資料封包或一IPv6資料封包。在一替代例中,該資料D可為待自(例如)核心網路節點轉遞至該行動台MS之發信號資訊。在一進一步替代例中,代替執行該步驟M1/3,該第一基地台BS1可能已產生用於控制該行動台MS且必須傳輸至該行動台MS之發信號資訊資料D。 In the next optional step M1/3, the first base station BS1 can receive the data D from one of the core network nodes of the radio communication system RCS1. The profile D can be, for example, user profile, such as an IPv4 data packet or an IPv6 data packet for one of the services running on the mobile station MS. In an alternative, the profile D may be signaling information to be forwarded from, for example, the core network node to the mobile station MS. In a further alternative, instead of performing this step M1/3, the first base station BS1 may have generated a signaling information D for controlling the mobile station MS and having to transmit to the mobile station MS.
在一進一步選用步驟M1/4中,作為該第一基地台BS1之一相鄰基地台之第二基地台BS2可傳輸第一干擾資訊INTERF-INFO1至該第一基地台BS1,且在下一個選用步驟M1/5中該第一基地台BS1接收該第一干擾資訊INTERF- INFO1。該第一干擾資訊INTERF-INFO1指示在一或若干下一個時間間隔在該第二基地台BS2針對該第三無線電小區BS-Cell-3使用無線電資源。若第一干擾資訊INTERF-INFO1僅包括用於一單一時間間隔之資訊,則可每一時間間隔藉由該第二基地台BS2重複該第一干擾資訊INTERF-INFO1之傳輸,或若該第一干擾資訊INTERF-INFO1包括若干時間間隔(大於1個時間間隔)(在該若干時間間隔藉由該第二基地台BS2分配相同PRB),則可在若干時間間隔後重複該第一干擾資訊INTERF-INFO1之傳輸。該第一干擾資訊INTERF-INFO1可包括(例如)對一或若干時間-頻率-資源(諸如3GPP LTE中應用之PRB)之逐位元指示,其藉由設定此等特定時間-頻率-資源之位元為「1」指示用於下一個時間間隔或用於若干下一個時間間隔之此等時間-頻率-資源之一分配。位元系列中之一位元位置隱含地指示一特定時間-頻率-資源。 In a further selection step M1/4, the second base station BS2, which is a neighboring base station of the first base station BS1, can transmit the first interference information INTERF-INFO1 to the first base station BS1, and is selected in the next In step M1/5, the first base station BS1 receives the first interference information INTERF- INFO1. The first interference information INTERF-INFO1 indicates that the radio resource is used by the second base station BS2 for the third radio cell BS-Cell-3 at one or several next time intervals. If the first interference information INTERF-INFO1 includes only information for a single time interval, the transmission of the first interference information INTERF-INFO1 may be repeated by the second base station BS2 every time interval, or if the first The interference information INTERF-INFO1 includes a plurality of time intervals (greater than one time interval) (on which the same PRB is allocated by the second base station BS2), the first interference information INTERF- may be repeated after several time intervals. Transmission of INFO1. The first interference information INTERF-INFO1 may include, for example, a bitwise indication of one or several time-frequency-resources (such as PRBs applied in 3GPP LTE) by setting such specific time-frequency-resources A bit of "1" indicates one of the time-frequency-resource allocations for the next time interval or for a number of next time intervals. One bit position in the bit family implicitly indicates a particular time-frequency-resource.
在一替代例中,該第一干擾資訊INTERF-INFO1可包括(例如)對一或若干時間-頻率-資源之逐位元指示,其藉由設定此等特定時間-頻率-資源之位元為「1」指示用於下一個時間間隔或用於若干下一個時間間隔之此等時間-頻率-資源之一未分配。 In an alternative, the first interference information INTERF-INFO1 may include, for example, a bitwise indication of one or several time-frequency-resources by setting the bits of the particular time-frequency-resource to "1" indicates that one of the time-frequency-resources for the next time interval or for a number of next time intervals is unallocated.
較佳地,該第一干擾資訊INTERF-INFO1可進一步指示在兩個或兩個以上連續下一個時間間隔且對與3GPP LTE中應用相同之一頻率資源(諸如一群組12個相鄰OFDM副載波)使用應用於該第二基地台BS2之天線系統BS2-AS之天 線元件之相同預編碼權重。 Preferably, the first interference information INTERF-INFO1 may further indicate one or two consecutive consecutive time intervals and one of the same frequency resources as the application in 3GPP LTE (such as a group of 12 adjacent OFDM pairs) Carrier) using the antenna system BS2-AS applied to the second base station BS2 The same precoding weights for the line elements.
術語「傳輸權重」可被視為一天線權重、波束成形權重、預編碼器、預編碼權重、傳輸預編碼器等等之同義詞,且此後偶爾可被稱為一天線權重、波束成形權重、預編碼器、預編碼權重、傳輸預編碼器等等。 The term "transmission weight" can be taken as a synonym for an antenna weight, beamforming weight, precoder, precoding weight, transmission precoder, etc., and may occasionally be referred to as an antenna weight, beamforming weight, pre- Encoder, precoding weights, transmission precoders, etc.
在一進一步步驟M1/6中,該第一基地台BS1之主控單元BS-MU可將該資料D分開為該第一資料單元及對應於該無線電通訊系統RCS1之一傳輸資源單元之一大小之一第二資料單元。該傳輸資源單元可為(例如)諸如3GPP LTE中應用之PRB。替代地,可將該資料D分開為兩個以上的資料單元。 In a further step M1/6, the main control unit BS-MU of the first base station BS1 can separate the data D into the first data unit and one of the transmission resource units corresponding to one of the radio communication systems RCS1. One of the second data units. The transmission resource unit can be, for example, a PRB such as that used in 3GPP LTE. Alternatively, the material D can be divided into more than two data units.
在下一個選用步驟M1/7中,該第一基地台BS1之主控單元BS-MU可藉由一共同HARQ程序或藉由根據本發明之一聯合排程及頻道估測程序驗證是否應傳輸該資料D之資料單元。 In the next optional step M1/7, the master unit BS-MU of the first base station BS1 can verify whether the transmission should be transmitted by a common HARQ procedure or by a joint scheduling and channel estimation procedure according to the present invention. Data unit of data D.
在該共同HARQ程序之情況中,可藉由該協作叢集CC執行以下各者:用於一第一資料單元之一第一傳輸之一第一排程;該第一資料單元至該行動台MS之第一傳輸;用於至少一第二資料單元之至少一第二傳輸之至少一第二排程;及該至少一第二資料單元至該行動台MS之該至少一第二傳輸。在接收器側上,可藉由該行動台MS執行以下各者:對該第一資料單元之一第一頻道估測;在該第一資料單元之傳輸後之一預定義時間至該協作叢集CC之一第一肯定或否定應答之一傳輸;對該至少一第二資料單元之 至少一第二頻道估測;以一同步HARQ程序之形式傳輸該至少一第二資料單元後之預定義時間至協作叢集CC之至少一第二肯定或否定應答之至少一第二傳輸。 In the case of the common HARQ procedure, the cooperative cluster CC may perform the following: a first schedule for one of the first transmissions of a first data unit; the first data unit to the mobile station MS a first transmission; at least one second schedule for at least one second transmission of the at least one second data unit; and the at least one second transmission of the at least one second data unit to the mobile station MS. On the receiver side, the mobile station MS can perform the following: estimating the first channel of the first data unit; and pre-defining the one of the first data units to the collaboration cluster One of the first positive or negative acknowledgements of the CC transmission; the at least one second data unit At least one second channel estimate; transmitting at least one second transmission of the at least one second data unit in the form of a synchronous HARQ procedure to at least one second positive or negative acknowledgement of the cooperative cluster CC.
在一聯合排程及頻道估測程序之情況中,一傳輸器側上之聯合排程意謂藉由該協作叢集CC執行以下各者:用於一第一資料單元之一第一傳輸且用於至少一第二資料單元之至少一第二傳輸之一單一排程;以及此後至該行動台MS之該第一資料單元之第一傳輸及至該行動台MS之該至少一第二資料單元之至少一第二傳輸。接收器側上之聯合頻道估測意謂可藉由該行動台MS執行以下各者:對該第一資料單元及該至少一第二資料單元之一單一頻道估測;傳輸該第一資料單元後之一預定義時間至協作叢集CC之一第一肯定應答或一第一否定應答之一傳輸;及並非以一不同步HARQ程序之形式傳輸該至少一第二資料單元後之預定義時間至協作叢集CC之至少一第二肯定應答或至少一第二否定應答之至少一第二傳輸。 In the case of a joint scheduling and channel estimation procedure, the joint scheduling on a transmitter side means that the cooperative cluster CC performs the following: for one of the first data units, the first transmission and And a first schedule of the at least one second transmission of the at least one second data unit; and the first transmission of the first data unit to the mobile station MS and the at least one second data unit of the mobile station MS At least one second transmission. The joint channel estimation on the receiver side means that the mobile station MS can perform the following: estimating a single channel of the first data unit and the at least one second data unit; transmitting the first data unit One of the latter predefined time to one of the first affirmative response or one of the first negative acknowledgement transmissions of the cooperative cluster CC; and the predefined time after transmitting the at least one second data unit in the form of an asynchronous HARQ procedure to At least one second acknowledgement of at least one second positive response or at least one second negative acknowledgement of the cooperative cluster CC.
該驗證可基於一或若干下列需要:根據一第一需要,若已在步驟M1/2中接收到該能力資訊CAP-INFO,則可應用該聯合排程及該頻道估測程序用於傳輸該資料D,指示該行動台MS能夠執行該聯合頻道估測之一能力。 The verification may be based on one or several of the following requirements: according to a first requirement, if the capability information CAP-INFO has been received in step M1/2, the joint schedule and the channel estimation program may be applied for transmitting the The data D indicates that the mobile station MS is capable of performing one of the joint channel estimation capabilities.
根據一第二需要,在該行動台MS處用於恢復該第一資料單元及該至少一第二資料單元之至少一第一者之一時間延遲可等於或低於一第一預定義臨限值。歸因於該聯合頻 道估測,已首先在該聯合排程及頻道估測程序期間傳輸之對資料單元之肯定或否定應答可隨後到達,接著在一共同HARQ程序期間傳輸之對資料單元之肯定或否定應答可隨後到達。此意謂(例如)即使該行動台MS可能夠用於該聯合頻道估測,包含於該第一資料單元及該至少一第二資料單元中之資料D亦可屬於一高度延遲敏感性服務(諸如一線上遊戲),在該情況中不可容忍用於恢復該第一資料單元或用於傳輸請求一再傳輸之一否定應答之一延遲(例如3毫秒)。 According to a second requirement, the time delay for recovering one of the first data unit and the at least one first one of the at least one second data unit at the mobile station MS may be equal to or lower than a first predefined threshold value. Attributable to the joint frequency It is estimated that a positive or negative response to a data unit that has been transmitted during the joint scheduling and channel estimation procedure may then arrive, followed by a positive or negative response to the data unit transmitted during a common HARQ procedure. Arrivals. This means that, for example, even if the mobile station MS can be used for the joint channel estimation, the data D included in the first data unit and the at least one second data unit may belong to a highly delayed sensitive service ( Such as an online game), in which case one of the delays (eg, 3 milliseconds) for recovering the first data unit or for transmitting a request for a retransmission of one of the negative responses is not tolerable.
根據一第三需要,用於服務資料D之一資料速率等於或高於一第二預定義臨限值。此意謂若該資料D屬於具有高資料容體(data volume)之一服務(諸如一資料速率為(例如)至少1 Mbit/s或至少10 Mbit/s之一視訊下載),則可僅應用該聯合排程及頻道估測。 According to a third requirement, the data rate for one of the service data D is equal to or higher than a second predefined threshold. This means that if the data D belongs to a service with a high data volume (such as a video download rate of at least 1 Mbit/s or at least 10 Mbit/s, for example), it can be applied only. The joint schedule and channel estimation.
根據一第四需要,將以一多點傳輸模式自該第一天線系統BS1-AS及該第二天線系統RRH1-AS傳輸該第一資料及該至少一第二資料。此意謂若一CoMP傳輸模式應用於該行動台MS,則僅可應用該聯合排程及頻道估測。 According to a fourth requirement, the first data and the at least one second data are transmitted from the first antenna system BS1-AS and the second antenna system RRH1-AS in a multi-point transmission mode. This means that if a CoMP transmission mode is applied to the mobile station MS, only the joint scheduling and channel estimation can be applied.
根據一第五需要,該行動台MS處用於接收資料單元之一信號干擾比等於或低於一第三預定義臨限值。此意謂亦可在無該CoMP傳輸模式之情況中使用該聯合排程及頻道估測(例如,對具有一低SINR條件之一行動台,諸如位於兩個無線電小區之間之一小區邊緣處之一行動台)。例如,若該行動台MS處量測並傳輸至該第一基地台BS1之一 SINR值等於或低於3 dB,則僅可應用該聯合排程及頻道估測程序。 According to a fifth requirement, the signal interference ratio of one of the receiving data units at the mobile station MS is equal to or lower than a third predefined threshold. This means that the joint scheduling and channel estimation can also be used without the CoMP transmission mode (eg, for a mobile station having one of the low SINR conditions, such as at the cell edge between one of the two radio cells) One of the action stations). For example, if the mobile station MS measures and transmits to one of the first base stations BS1 The joint scheduling and channel estimation procedure can only be applied if the SINR value is equal to or lower than 3 dB.
若連接至該無線電通訊系統RCS1之全部行動台能夠用於該聯合排程及頻道估測且若該聯合排程及頻道估測經組態為一標準程序,則不一定需要該選用步驟M1/7。 If all of the mobile stations connected to the radio communication system RCS1 can be used for the joint scheduling and channel estimation and if the joint scheduling and channel estimation are configured as a standard procedure, the optional step M1/ is not necessarily required. 7.
在下一個步驟M1/8中,若該主控單元BS-MU已藉由該聯合排程及頻道估測程序判決傳輸該資料D,則該主控單元BS-MU可對該聯合排程及頻道估測程序設定一持續時間計時器。該持續時間計時器判定有多少連續時間間隔且藉此判定有多少資料D之資料單元將應用於該聯合排程及頻道估測程序。該持續時間計時器之一大小可取決於(例如)該行動台MS之一輸入緩衝器大小及描述該協作叢集CC與該行動台MS之間之頻道條件變化快慢之一時間常數。 In the next step M1/8, if the master unit BS-MU has decided to transmit the data D by the joint scheduling and channel estimation procedure, the master unit BS-MU can perform the joint scheduling and channel. The estimation program sets a duration timer. The duration timer determines how many consecutive time intervals and thereby determines how many data units of data D will be applied to the joint scheduling and channel estimation procedure. The size of one of the duration timers may depend, for example, on one of the mobile station MS's input buffer size and a time constant describing how fast the channel conditions between the cooperative cluster CC and the mobile station MS change.
LTE實體層規格容許一下行鏈路載波由來自一最小值為6至最高一最大值為110之相鄰PRB之一群組組成。 The LTE physical layer specification allows the downlink carrier to consist of a group of neighboring PRBs from a minimum of 6 to a maximum of 110.
在一進一步步驟M1/9中,該主控單元BS-MU藉由在該第一時間間隔對該第一資料單元之傳輸分配相鄰PRB之群組之一第一PRB及在該第二時間間隔對該第二資料單元之傳輸分配相鄰PRB之群組之一第二PRB,對該第一資料單元及該第二資料單元執行一組合排程。 In a further step M1/9, the master control unit BS-MU allocates one of the first PRBs of the group of adjacent PRBs by the transmission of the first data unit at the first time interval and at the second time The second PRB of one of the groups of adjacent PRBs is allocated to the transmission of the second data unit, and a combined scheduling is performed on the first data unit and the second data unit.
替代地,若該持續時間計時器包括兩個以上時間間隔,則該主控單元BS-MU針對組合排程對進一步資料單元之傳輸分配進一步PRB。 Alternatively, if the duration timer comprises more than two time intervals, the master unit BS-MU assigns a further PRB to the transmission of the further data unit for the combined schedule.
在一進一步步驟M1/10中,該主控單元BS-MU較佳地在 一控制頻道(諸如3GPP LTE中之實體下行鏈路控制頻道(PDCCH))上傳輸第一排程資訊SCHED-INFO1至該行動台MS,且在下一個步驟M1/11中該行動台MS接收該第一排程資訊。該第一排程資訊SCHED-INFO1包括對該行動台MS指示該第一時間間隔及該至少一第二時間間隔期間將包括用於該行動台MS之資料D之PRB。較佳地,該第一排程資訊SCHED-INFO1將會伴隨傳輸模式資訊MODE-INFO。該傳輸模式資訊MODE-INFO可為(例如)藉由一「0」指示一共同HARQ程序且藉由一「1」指示該聯合排程及頻道估測程序之一單一位元。該傳輸模式資訊MODE-INFO指導該行動台MS執行該聯合頻道估測。 In a further step M1/10, the master unit BS-MU is preferably A first scheduling information SCHED-INFO1 is transmitted to the mobile station MS on a control channel (such as a physical downlink control channel (PDCCH) in 3GPP LTE), and the mobile station MS receives the first in the next step M1/11 A schedule of information. The first schedule information SCHED-INFO1 includes a PRB indicating to the mobile station MS that the first time interval and the at least one second time interval will include the data D for the mobile station MS. Preferably, the first schedule information SCHED-INFO1 will be accompanied by the transmission mode information MODE-INFO. The transmission mode information MODE-INFO may indicate, for example, a common HARQ procedure by a "0" and indicate a single bit of the joint scheduling and channel estimation procedure by a "1". The transmission mode information MODE-INFO directs the mobile station MS to perform the joint channel estimation.
進一步較佳地,該第一排程資訊SCHED-INFO1將會伴隨第二干擾資訊INTERF-INFO2。該第二干擾資訊INTERF-INFO2指示在該第二基地台BS2處在一或若干下一個時間間隔對該第三無線電小區BS-Cell-3且對該第一時間間隔及該第二時間間隔期間與應用於該行動台MS相同之頻率資源使用無線電資源。該第二干擾資訊INTERF-INFO2藉由僅包括與該行動台MS有關之頻率資源之干擾資訊而可為該第一干擾資訊INTERF-INFO1之一子組。 Further preferably, the first schedule information SCHED-INFO1 will be accompanied by the second interference information INTERF-INFO2. The second interference information INTERF-INFO2 indicates to the third radio cell BS-Cell-3 at the second base station BS2 at one or several next time intervals and during the first time interval and the second time interval The radio resources are used in the same frequency resource as applied to the mobile station MS. The second interference information INTERF-INFO2 may be a subset of the first interference information INTERF-INFO1 by including only interference information of frequency resources related to the mobile station MS.
替代地,該第一排程資訊SCHED-INFO1、該傳輸模式資訊MODE-INFO及該第二干擾資訊INTERF-INFO2可以分離訊息形式傳輸至該行動台MS。 Alternatively, the first schedule information SCHED-INFO1, the transmission mode information MODE-INFO, and the second interference information INTERF-INFO2 may be transmitted to the mobile station MS in a separate message form.
在一進一步步驟M1/12中,該主控單元BS-MU傳輸第二排程資訊SCHED-INFO2、該第一資料單元DU1及該至少一 第二資料單元DU2至該第一遠端無線電頭端RRH1,且在下一個步驟M1/13中,該第一遠端無線電頭端RRH1接收該第二排程資訊SCHED-INFO2、該第一資料單元DU1及該至少一第二資料單元DU2。該第二排程資訊SCHED-INFO2對該第一遠端無線電頭端RRH1指示該第一時間間隔及該至少一第二時間間隔期間應用以依該多點傳輸模式傳輸該第一資料單元DU1及該至少一第二資料單元DU2至該行動台MS之PRB。 In a further step M1/12, the main control unit BS-MU transmits the second schedule information SCHED-INFO2, the first data unit DU1 and the at least one The second data unit DU2 to the first remote radio head RRH1, and in the next step M1/13, the first remote radio head RRH1 receives the second schedule information SCHED-INFO2, the first data unit DU1 and the at least one second data unit DU2. The second scheduling information SCHED-INFO2 indicates to the first remote radio head RRH1 that the first time interval and the at least one second time interval are applied to transmit the first data unit DU1 according to the multi-point transmission mode. The at least one second data unit DU2 to the PRB of the mobile station MS.
在下一個步驟M1/14中,在該第一PRB中之第一時間間隔期間該第一基地台BS1及該第一遠端無線電頭端RRH1傳輸該第一資料單元DU1及關於該第一資料單元DU1之第一參考信號RS1至該行動台MS,且在一進一步步驟M1/15中該行動台MS接收該第一資料單元DU1及該等第一參考信號RS1。 In the next step M1/14, the first base station BS1 and the first remote radio head RRH1 transmit the first data unit DU1 and the first data unit during the first time interval in the first PRB. The first reference signal RS1 of the DU1 to the mobile station MS, and in a further step M1/15 the mobile station MS receives the first data unit DU1 and the first reference signal RS1.
在下一個步驟M1/16中,該行動台MS將所接收第一資料單元DU1及所接收第一參考信號RS1儲存在一緩衝器或一記憶體中。 In the next step M1/16, the mobile station MS stores the received first data unit DU1 and the received first reference signal RS1 in a buffer or a memory.
在下一個步驟M1/17中,在該第二時間間隔期間該第一基地台BS1及該第一遠端無線電頭端RRH1於該第二PRB中傳輸該第二資料單元DU2及關於該第二資料單元DU2之第二參考信號RS2至該行動台MS,且在一進一步步驟M1/18中該行動台MS接收該第二資料單元DU2及該等第二參考信號RS2。 In the next step M1/17, the first base station BS1 and the first remote radio head RRH1 transmit the second data unit DU2 and the second data in the second PRB during the second time interval. The second reference signal RS2 of the unit DU2 is to the mobile station MS, and in a further step M1/18 the mobile station MS receives the second data unit DU2 and the second reference signal RS2.
可經由傳輸頻道用相同傳送格式傳輸該第一資料單元 DU1及該第二資料單元DU2至該行動台MS。此意謂相同資料速率、相同編碼方案、相同調變方案及相同天線映射可應用於該第一資料單元DU1及該第二資料單元DU2。此可藉由將該第一PRB及該第二PRB彙總於一單一傳送區塊中予以完成(例如在3GPP LTE之情況中)。 The first data unit can be transmitted in the same transmission format via the transmission channel DU1 and the second data unit DU2 to the mobile station MS. This means that the same data rate, the same coding scheme, the same modulation scheme and the same antenna mapping can be applied to the first data unit DU1 and the second data unit DU2. This can be done by summarizing the first PRB and the second PRB in a single transport block (for example, in the case of 3GPP LTE).
該等第一參考信號RS1及該等第二參考信號RS2可為(例如)已知的參考符號,該等參考符號可***於一特定頻率副載波處且一頻域間隔為六個副載波之一PRB(諸如3GPP LTE中應用之具有所謂的小區特定參考符號(CRS))之一倒數第一OFDMS符號及一倒數第三OFDMS符號內。此意謂(例如)可在該第一時間間隔內傳輸四個第一參考符號且可在該第二時間間隔內傳輸四個第二參考符號。 The first reference signal RS1 and the second reference signal RS2 may be, for example, known reference symbols, which may be inserted at a specific frequency subcarrier and have a frequency domain interval of six subcarriers. A PRB (such as a so-called cell-specific reference symbol (CRS) applied in 3GPP LTE) is one of the first to the first OFTS symbol and one to the third to the last OFTS symbol. This means, for example, that four first reference symbols can be transmitted during the first time interval and four second reference symbols can be transmitted during the second time interval.
替代地,若該持續時間計時器包括兩個以上時間間隔,則該第一基地台BS1及該第一遠端無線電頭端RRH1除傳輸該第一資料單元DU1及該第二資料單元DU2外亦傳輸至少一進一步資料單元,且除傳輸該等第一參考信號RS1及該等第二參考信號RS2外亦傳輸關於該至少進一步資料單元之至少進一步參考信號。為簡單起見此未展示於圖2中。 Alternatively, if the duration timer includes more than two time intervals, the first base station BS1 and the first remote radio head RRH1 are also transmitted by the first data unit DU1 and the second data unit DU2. Transmitting at least one further data unit and transmitting at least a further reference signal for the at least further data unit in addition to transmitting the first reference signal RS1 and the second reference signal RS2. This is not shown in Figure 2 for the sake of simplicity.
較佳地,該第一PRB及該至少一第二PRB屬於相同群組之12個相鄰PRB。此意謂較佳地將在相同頻率資源上傳輸該第一資料單元及該至少一第二資料單元。 Preferably, the first PRB and the at least one second PRB belong to 12 adjacent PRBs of the same group. This means that the first data unit and the at least one second data unit are preferably transmitted on the same frequency resource.
替代地,對該第一資料單元DU1之資源分配及對該第一資料單元DU1之排程資訊之傳輸被分離,且係在執行對該第二資料單元DU2之資源分配及對該第二資料單元DU2之 排程資訊之傳輸之前予以完成。 Alternatively, the resource allocation of the first data unit DU1 and the transmission of the scheduling information of the first data unit DU1 are separated, and the resource allocation to the second data unit DU2 and the second data are performed. Unit DU2 The scheduling information is transmitted before the transfer.
在一進一步步驟M1/19中,該行動台MS將所接收第二資料單元DU2及所接收第二參考信號RS2儲存在該緩衝器或該記憶體中。 In a further step M1/19, the mobile station MS stores the received second data unit DU2 and the received second reference signal RS2 in the buffer or the memory.
在下一個步驟M1/20中,該行動台MS基於該等第一參考信號RS1及該等第二參考信號RS2對該協作叢集CC與該行動台MS之間之傳輸頻道判定頻道估測。替代地,該行動台MS基於該等第一參考信號、該等第二參考信號及至少一進一步參考信號判定頻道估測。 In the next step M1/20, the mobile station MS estimates the transmission channel decision channel between the cooperative cluster CC and the mobile station MS based on the first reference signal RS1 and the second reference signal RS2. Alternatively, the mobile station MS determines the channel estimate based on the first reference signal, the second reference signals, and the at least one further reference signal.
該判定步驟M1/20可基於該第一時間間隔及該第二時間間隔內之空間-時間-頻率過濾。 The determining step M1/20 may be based on the first time interval and the space-time-frequency filtering within the second time interval.
對於(例如)一OFDM系統,用於該等第一參考信號RS1之時間瞬間1(對於一特定天線)之導頻資源元素位置處之一第一導頻接收信號向量y 1 可被寫為y 1 =S 1 h 1 +n 1 ,其中S 1 係含有該等導頻符號資源元素之一對角矩陣,h 1 係用於全部導頻之一無線電頻道向量,且n 1 含有雜訊及干擾。類似地,對於該等第二參考信號RS2之時間瞬間2,一第二導頻接收信號向量係y 2 =S 2 h 2 +n 2 。可將用於該兩個時間瞬間之一聯合接收向量寫為堆疊向量y [both] =[y 1 T y 2 T ] T 。 For, for example, an OFDM system, one of the first pilot received signal vectors y 1 at the location of the pilot resource element for the time instant 1 (for a particular antenna) of the first reference signal RS1 can be written as y 1 = S 1 h 1 + n 1 , where S 1 contains one diagonal matrix of the pilot symbol resource elements, h 1 is used for one of the radio channels of all pilots, and n 1 contains noise and interference . Similarly, for the time instant 2 of the second reference signal RS2, a second pilot received signal vector y 2 = S 2 h 2 + n 2 . A joint reception vector for one of the two time instants can be written as a stack vector y [ both ] = [y 1 T y 2 T ] T .
一線性頻道估測器用作導頻接收信號向量y 1 、y 2 上之一FIR濾波器(FIR=有限脈衝回應)。僅僅依賴於第一時間瞬間之一估測器在一特定資源元素k處估測一特定天線之頻道為,其中係該估測器之權重向量。該估測器可基於(例如)最小平方加窗平均。另一強大的選 項係(例如)如(例如)1997年4月21日至24日P.Hoeher、S.Kaiser、P.Robertson在《IEEE International Conference on Acoustics,Speech,and Signal Processing ICASSP-97》第3卷第1845頁至1848頁)發表之「Two-dimensional pilot-symbol aided channel estimation by Wiener filtering」中描述之維納濾波(Wiener filtering)。此處該等權重額外使用統計學頻道性質,此外必須自信號提取該等統計學頻道性質。該等權重可被計算為 =Θ k T φ -1 ,其中Θ k T 標示資料資源元素k與所考慮的導頻符號之間之交叉共變異向量,且φ -1 標示全部考慮的導頻位置之間之接收信號之逆自協共變異矩陣。 A linear channel estimator is used as one of the pilot received signal vectors y 1 , y 2 (FIR = finite impulse response). Merely relying on one of the first time instants, the estimator estimates the channel of a particular antenna at a particular resource element k as ,among them The weight vector of the estimator. The estimator can be based, for example, on a least squares windowed average. Another powerful option is, for example, for example, from April 21 to 24, 1997, P. Hoeher, S. Kaiser, and P. Robertson in IEEE International Conference on Acoustics, Speech, and Signal Processing ICASSP-97. Volume 4, pages 1845 to 1848) Wiener filtering described in "Two-dimensional pilot-symbol aided channel estimation by Wiener filtering". Here, the weights additionally use the statistical channel properties, and in addition the statistical channel properties must be extracted from the signal. These weights can be calculated as = Θ k T φ -1 , where Θ k T denotes the cross-covariation vector between the data resource element k and the considered pilot symbol, and φ -1 denotes the inverse of the received signal between all considered pilot positions Self-co-variation matrix.
本發明現在容許藉由緩衝輸入信號及使用至少一第二時間瞬間之接收信號(因此,y [both] )來改良(例如)第一時間瞬間之頻道估測。最佳估測現在係,此係因為其明顯依賴於更多的導頻符號且因此提供改良之精確度。 The present invention now allows channel estimation to be improved, for example, at a first time instant by buffering the input signal and using at least a second time instant received signal (hence, y [ both ] ). Best estimate now This is because it relies significantly on more pilot symbols and thus provides improved accuracy.
在一進一步步驟M1/21中,該行動台MS基於頻道估測恢復該第一資料單元DU1及該第二資料單元DU2。可藉由一習知等化器、解映射器及頻道前向錯誤校正(FEC)解碼器完成該恢復。 In a further step M1/21, the mobile station MS recovers the first data unit DU1 and the second data unit DU2 based on the channel estimation. This recovery can be accomplished by a conventional equalizer, demapper, and channel forward error correction (FEC) decoder.
在下一個步驟M1/22中,該行動台MS取決於展示已無錯誤或非無錯誤地恢復該第一資料單元DU1及/或該第二資料單元DU2之恢復步驟M1/21之一結果對該第一資料單元DU1及該第二資料單元DU2傳輸肯定或否定應答。在一進 一步步驟M1/23中,第一基地台BS1之主控單元BS-MU自該行動台MS接收該等肯定或否定應答。 In the next step M1/22, the mobile station MS depends on one of the restoration steps M1/21 of the first data unit DU1 and/or the second data unit DU2 to be restored without error or without error. The first data unit DU1 and the second data unit DU2 transmit a positive or negative response. In one In a step M1/23, the master unit BS-MU of the first base station BS1 receives the positive or negative acknowledgements from the mobile station MS.
在一第一替代例中,若已無錯誤地恢復該第一資料單元DU1及該第二資料單元DU2二者,則可傳輸一組合肯定應答ACK,且若非無錯誤地恢復該第一資料單元DU1及該第二資料單元DU2二者,則可傳輸一組合否定應答NACK。 In a first alternative, if the first data unit DU1 and the second data unit DU2 have been recovered without error, a combined acknowledgement ACK can be transmitted, and if the first data unit is recovered without error Both DU1 and the second data unit DU2 can transmit a combined negative acknowledgement NACK.
在一第二替代例中,可取決於該恢復步驟M1/21之結果藉由該行動台MS傳輸用於該第一資料單元DU1及該第二資料單元DU2之單獨肯定應答ACK1、ACK2及單獨否定應答NACK1、NACK2。 In a second alternative, the individual acknowledgement ACK1, ACK2 and the separate for the first data unit DU1 and the second data unit DU2 may be transmitted by the mobile station MS depending on the result of the recovery step M1/21. Negative responses NACK1, NACK2.
現在參考圖3,展示使用於該無線電通訊網路RCS1中之一基地台BS之一方塊圖。該基地台BS可為(例如)圖1中所示之第一基地台BS1或第二基地台BS2。 Referring now to Figure 3, there is shown a block diagram of one of the base stations BS used in the radio communication network RCS1. The base station BS can be, for example, the first base station BS1 or the second base station BS2 shown in FIG.
該基地台BS可包括一天線系統BS-AS、連接至該天線系統BS-AS之一第一收發器BS-TR1、一第一外部連接器BS-CON1、在內部連接至該第一外部連接器BS-CON1之一第二收發器BS-TR2、一第二外部連接器BS-CON2、在內部連接至該第二外部連接器BS-CON2之一傳輸器BS-TM及該主控單元BS-MU。 The base station BS may comprise an antenna system BS-AS, a first transceiver BS-TR1 connected to the antenna system BS-AS, a first external connector BS-CON1, and an internal connection to the first external connection a second transceiver BS-TR2, a second external connector BS-CON2, a second external connector BS-CON2, a transmitter BS-TM internally connected to the second external connector BS-CON2, and the main control unit BS -MU.
該主控單元BS-MU可為(例如)具有用於一協作多點傳輸之主控功能之基地台BS之一數位基頻處理板,且可包括一CPU(CPU=中央處理單元)BS-CPU及一電腦可讀媒體BS-MEM。在一替代例中,若該無線電通訊系統RCS1中未應用協作多點傳輸,則該數位基頻處理板可能非主控單元。 The main control unit BS-MU may be, for example, a digital baseband processing board having a base station BS for a coordinated multipoint transmission, and may include a CPU (CPU=Central Processing Unit) BS- CPU and a computer readable medium BS-MEM. In an alternative, if the coordinated multipoint transmission is not applied in the radio communication system RCS1, the digital baseband processing board may not be the main control unit.
該天線系統BS-AS可為(例如)該第一天線系統BS1-AS或該第二天線系統BS2-AS,且可包括一第一天線元件BS-AE1、一第二天線元件BS-AE2、一第三天線元件BS-AE3及一第四天線元件BS-AE4。在進一步替代例中,該天線系統BS-AS可包括一個、兩個、三個天線元件或四個以上天線元件。 The antenna system BS-AS can be, for example, the first antenna system BS1-AS or the second antenna system BS2-AS, and can include a first antenna element BS-AE1, a second antenna element BS-AE2, a third antenna element BS-AE3 and a fourth antenna element BS-AE4. In a further alternative, the antenna system BS-AS may comprise one, two, three antenna elements or more than four antenna elements.
預見該CPU BS-CPU係用於執行一電腦可讀程式BS-PROG。 It is foreseen that the CPU BS-CPU is used to execute a computer readable program BS-PROG.
在一下行鏈路方向上,該第一收發器BS-TR1及該天線系統BS-AS可傳輸該第一排程資訊SCHED-INFO1、該傳輸模式資訊MODE-INFO、該第二干擾資訊INTERF-INFO2、該第一資料單元DU1、該等第一參考信號RS1、該第二資料單元DU2及該等第二參考信號RS2。 In the downlink direction, the first transceiver BS-TR1 and the antenna system BS-AS can transmit the first scheduling information SCHED-INFO1, the transmission mode information MODE-INFO, and the second interference information INTERF- INFO2, the first data unit DU1, the first reference signal RS1, the second data unit DU2, and the second reference signal RS2.
在一上行鏈路方向上,該天線系統BS-AS及該第一收發器BS-TR1可接收該能力資訊CAP-INFO、該等單獨肯定應答ACK1、ACK2或該組合肯定應答ACK或該等單獨否定應答NACK1、NACK2或該組合否定應答NACK。 In an uplink direction, the antenna system BS-AS and the first transceiver BS-TR1 may receive the capability information CAP-INFO, the individual acknowledgement ACK1, ACK2 or the combination acknowledgement ACK or the separate Negative acknowledgement NACK1, NACK2 or the combined negative acknowledgement NACK.
該第一連接器BS-CON1及該第二收發器BS-TR2可自該無線電通訊系統RCS1之核心網路節點接收該資料D且自一相鄰基地台接收該第一干擾資訊INTERF-INFO1。該第二收發器BS-TR2可傳輸該第三干擾資訊INTERF-INFO3至該相鄰基地台。類似於第一干擾資訊INTERF-INFO1,該該第三干擾資訊INTERF-INFO3可指示於該基地台BS處在一或若干下一個時間間隔對該基地台BS之無線電小區之一或 若干者使用無線電資源。 The first connector BS-CON1 and the second transceiver BS-TR2 can receive the data D from the core network node of the radio communication system RCS1 and receive the first interference information INTERF-INFO1 from a neighboring base station. The second transceiver BS-TR2 can transmit the third interference information INTERF-INFO3 to the neighboring base station. Similar to the first interference information INTERF-INFO1, the third interference information INTERF-INFO3 may be indicated at the base station BS at one or several next time intervals for one of the radio cells of the base station BS or Several use radio resources.
該傳輸器BS-TM及該第二連接器BS-CON2可傳輸該第二排程資訊SCHED-INFO2、該第一資料單元DU1及該第二資料單元DU2。 The transmitter BS-TM and the second connector BS-CON2 can transmit the second schedule information SCHED-INFO2, the first data unit DU1 and the second data unit DU2.
預見該電腦可讀媒體BS-MEM係用於儲存該電腦可讀程式BS-PROG,且可儲存該資料D、該第一干擾資訊INTERF-INFO1及該能力資訊CAP-INFO。 It is foreseen that the computer readable medium BS-MEM is for storing the computer readable program BS-PROG, and can store the data D, the first interference information INTERF-INFO1 and the capability information CAP-INFO.
可預見該電腦可讀程式BS-PROG用於執行關於該基地台BS之方法MET1之步驟。 It is foreseen that the computer readable program BS-PROG is used to perform the steps of the method MET1 for the base station BS.
參考圖4,展示於該無線電通訊網路RCS1中使用之行動台MS之一方塊圖。該行動台MS可包括一天線系統MS-AS、一收發器MS-TR、連接至該天線系統MS-AS之一CPU(CPU=中央處理單元)MS-CPU及一電腦可讀媒體MS-MEM。該CPU MS-CPU及該電腦可讀媒體MS-MEM可基於該行動台MS之一數位基頻處理板。預見該CPU MS-CPU係用於執行一電腦可讀程式MS-PROG。 Referring to Figure 4, a block diagram of one of the mobile stations MS used in the radio communication network RCS1 is shown. The mobile station MS may comprise an antenna system MS-AS, a transceiver MS-TR, a CPU connected to the antenna system MS-AS (CPU=Central Processing Unit) MS-CPU and a computer readable medium MS-MEM . The CPU MS-CPU and the computer readable medium MS-MEM may be based on a digital baseband processing board of the mobile station MS. It is foreseen that the CPU MS-CPU is used to execute a computer readable program MS-PROG.
該天線系統MS-AS可包括一第一天線元件MS-AE1及一第二天線元件MS-AE2。替代地,該天線系統MS-AS可包括一天線元件或兩個以上天線元件。 The antenna system MS-AS can comprise a first antenna element MS-AE1 and a second antenna element MS-AE2. Alternatively, the antenna system MS-AS may comprise an antenna element or more than two antenna elements.
在該下行鏈路方向上,該天線系統MS-AS及該收發器MS-TR可接收該第一排程資訊SCHED-INFO1、該第二干擾資訊INTERF-INFO2、該傳輸模式資訊MODE-INFO、該第一資料單元DU1、該等第一參考信號RS1、該第二資料單元DU2及該等第二參考資料RS2。 In the downlink direction, the antenna system MS-AS and the transceiver MS-TR can receive the first scheduling information SCHED-INFO1, the second interference information INTERF-INFO2, the transmission mode information MODE-INFO, The first data unit DU1, the first reference signal RS1, the second data unit DU2, and the second reference data RS2.
在該上行鏈路方向上,該收發器MS-TR及該天線系統MS-AS可傳輸該能力資訊CAP-INFO、該等單獨肯定應答ACK1、ACK2或該組合肯定應答ACK或該等單獨否定應答NACK1、NACK2或該組合否定應答NACK。 In the uplink direction, the transceiver MS-TR and the antenna system MS-AS may transmit the capability information CAP-INFO, the individual acknowledgement ACK1, ACK2 or the combined acknowledgement ACK or the separate negative acknowledgements NACK1, NACK2 or the combination negative acknowledges NACK.
預見該電腦可讀媒體MS-MEM係用於儲存該電腦可讀程式MS-PROG,且可儲存該第一排程資訊SCHED-INFO1、該第二干擾資訊INTERF-INFO2、該第一資料單元DU1、該等第一參考信號RS1、該第二資料單元DU2及該等第二參考資料RS2。 It is foreseen that the computer readable medium MS-MEM is used for storing the computer readable program MS-PROG, and can store the first schedule information SCHED-INFO1, the second interference information INTERF-INFO2, and the first data unit DU1 The first reference signal RS1, the second data unit DU2, and the second reference data RS2.
預見該電腦程式MS-PROG係用於執行關於該行動台MS之方法MET1之步驟。 It is foreseen that the computer program MS-PROG is used to perform the steps of the method MET1 for the mobile station MS.
熟習此項技術者將容易意識到可藉由程式化電腦執行各種上述方法MET1之步驟。本文中一些實施例亦旨在涵蓋程式儲存裝置(例如,數位資料儲存媒體),其等係機器可讀或電腦可讀及編碼機器可執行或電腦可執行指令程式,其中該等指令執行該等上述方法之一些步驟或全部步驟。該等程式儲存裝置可為(例如)數位記憶體、磁性儲存媒體(諸如磁碟及磁帶、硬碟)或視需要可讀數位資料儲存媒體。該等實施例亦旨在涵蓋經程式化以執行該等上述方法之該等步驟之電腦。 Those skilled in the art will readily recognize the steps of performing the various methods MET1 described above by a stylized computer. Some embodiments herein are also intended to encompass a program storage device (eg, a digital data storage medium), such as a machine readable or computer readable and encoded machine executable or computer executable instruction program, wherein the instructions perform such Some or all of the above methods. The program storage devices can be, for example, digital memory, magnetic storage media (such as magnetic disks and magnetic tapes, hard disks) or as desired data storage media. The embodiments are also intended to encompass a computer that is programmed to perform the steps of the methods described above.
該描述及該等圖式僅僅圖解本發明之原理。因此將明白熟習此項技術者將能夠設想雖然本文未明確描述展示但具體實施本發明之原理且包含於本發明之精神及範疇內之各種配置。而且,本文敘述之全部實例原則上明確旨在僅用 於教學目的以輔助讀者理解本發明之原理及發明者促成之概念以促進此項技術,且被解釋為不限於此等具體敘述之實例及條件。而且,本文敘述本發明之原理、態樣及實施例之全部陳述以及本發明之特定實例旨在涵蓋其等之等效物。 This description and the drawings are merely illustrative of the principles of the invention. It will be appreciated that those skilled in the art will be able to devise various embodiments of the present invention. Moreover, all the examples described in this article are clearly intended to be used only in principle. The teachings are intended to assist the reader in understanding the principles of the present invention and the concept of the inventors to facilitate the present invention and are not to be construed as limited to the details. Moreover, all statements herein reciting principles, aspects, and embodiments of the invention and the specific examples of the invention are intended to be
標示為「用於...之構件」(執行某一功能)之功能組塊將被理解為分別包括適合用於執行某一功能之電路之功能組塊。因此,一「用於事物之構件」亦可被理解為一「適合用於或適用於事物之構件」。因此,適合用於執行某一功能之一構件的確並未暗示此等構件必須執行該功能(在一給定的時間瞬間)。 Functional blocks labeled as "means for" (performing a function) will be understood to include functional blocks that are respectively suitable for the circuitry for performing a function. Therefore, a "component for things" can also be understood as a "component suitable for or applicable to things." Therefore, a component suitable for performing a function does not imply that such a component must perform the function (at a given moment in time).
可透過使用專用硬體(諸如「一接收器」、「一驗證器」、「一判定器」、「一傳輸器」、「一執行器或一處理器」、「一排程器」)以及能夠結合適當軟體執行軟體之硬體提供該等圖式中所示之各種元件(包含標記為「構件」、「用於接收之構件」、「用於驗證之構件」、「用於判定之構件」、「用於傳輸之構件」、「用於執行之構件」、「用於排程之構件」、「用於指導之構件」之任何功能組塊)之功能。當藉由一處理器執行該等功能時,可藉由一單一專用處理器、藉由一單一共用處理器或藉由複數個個別處理器(其等之一些可共用)提供該等功能。而且,術語「處理器」或「控制器」之明確使用不應被解釋為排他性地指代能夠執行軟體之硬體,且可隱含地包含(無限制)數位信號處理器(DSP)硬體、網路處理器、特定應用積體電路(ASIC)、長可程式化閘陣列(FPGA)、用於儲存軟體之唯讀記憶體 (ROM)、隨機存取存儲器(RAM)及非揮發性儲存器。亦可包含其他習知及/或普通硬體。類似地,該等圖式中所示之任何切換器僅僅係概念性的。可透過對程式邏輯之操作、透過專用邏輯、透過程式控制與專用邏輯之互動、或甚至可藉由實施者手動選擇之如自上下文更具體地瞭解之特定技術實行該等切換器之功能。 Through the use of dedicated hardware (such as "one receiver", "one validator", "one determiner", "one transmitter", "one actuator or one processor", "one scheduler") The hardware capable of executing the software in conjunction with the appropriate software provides the various components shown in the drawings (including the components labeled "components", "components for receiving", "components for verification", and "components for determination" The functions of "components used for transmission", "components for execution", "components used for scheduling", and "function blocks for guidance". When the functions are performed by a processor, the functions may be provided by a single dedicated processor, by a single shared processor, or by a plurality of individual processors (some of which may be shared). Moreover, the explicit use of the terms "processor" or "controller" should not be interpreted as exclusively referring to hardware capable of executing software, and may implicitly include (unrestricted) digital signal processor (DSP) hardware. , network processor, application-specific integrated circuit (ASIC), long programmable gate array (FPGA), read-only memory for storing software (ROM), random access memory (RAM), and non-volatile storage. Other conventional and/or general hardware may also be included. Similarly, any of the switches shown in these figures are merely conceptual. The functions of the switches may be implemented through the operation of the program logic, through the dedicated logic, through the interaction of the program control and the dedicated logic, or even by the implementer's manual selection of specific techniques that are more specifically understood from the context.
熟習此項技術者應明白本文任何方塊圖表示具體實施本發明之原理之闡釋性電路之概念圖。類似地,將明白任何流動流程、流程圖、狀態變換圖、偽碼等等表示在電腦可讀媒體中大致上表示且因此藉由一電腦或處理器執行(無關於此電腦或處理器是否明確展示)之各種處理程序。 Those skilled in the art should understand that any block diagram herein represents a conceptual diagram of an illustrative circuit embodying the principles of the invention. Similarly, it will be understood that any flow flow, flow diagram, state transition diagram, pseudocode, etc., is generally represented in a computer readable medium and thus executed by a computer or processor (regardless of whether the computer or processor is clear Show) various processing procedures.
ACK(NACK)‧‧‧組合肯定應答(組合否定應答) ACK (NACK) ‧ ‧ combination positive response (combined negative response)
ACK1(NACK1)‧‧‧單獨肯定應答(單獨否定應答) ACK1 (NACK1) ‧ ‧ separate positive response (individual negative response)
ACK2(NACK2)‧‧‧單獨肯定應答(單獨否定應答) ACK2 (NACK2) ‧ ‧ separate positive response (individual negative response)
BS1‧‧‧第一網路節點/第一基地台 BS1‧‧‧First Network Node/First Base Station
BS2‧‧‧第二基地台 BS2‧‧‧Second base station
BS-AS‧‧‧天線系統 BS-AS‧‧‧Antenna System
BS-MU‧‧‧第二主控單元 BS-MU‧‧‧Second master unit
BS-SU‧‧‧第二從屬單元 BS-SU‧‧‧Secondary slave unit
BS1-AS‧‧‧第一天線系統 BS1-AS‧‧‧First Antenna System
BS1-L1‧‧‧第一傳輸路徑 BS1-L1‧‧‧First transmission path
BS2-AS‧‧‧第三天線系統 BS2-AS‧‧‧3rd antenna system
BS-AE1‧‧‧第一天線元件 BS-AE1‧‧‧First antenna element
BS-AE2‧‧‧第二天線元件 BS-AE2‧‧‧Second antenna element
BS-AE3‧‧‧第三天線元件 BS-AE3‧‧‧3rd antenna element
BS-AE4‧‧‧第四天線元件 BS-AE4‧‧‧4th antenna element
BS-CON1‧‧‧第一連接器 BS-CON1‧‧‧ first connector
BS-CON2‧‧‧第二連接器 BS-CON2‧‧‧Second connector
BS-CPU‧‧‧中央處理單元 BS-CPU‧‧‧Central Processing Unit
BS-TM‧‧‧傳輸器 BS-TM‧‧‧Transmitter
BS-TR1‧‧‧第一收發器 BS-TR1‧‧‧ first transceiver
BS-TR2‧‧‧第二收發器 BS-TR2‧‧‧Second transceiver
BS-MEM‧‧‧電腦可讀媒體 BS-MEM‧‧‧Computer-readable media
BS-PROG‧‧‧電腦可讀程式 BS-PROG‧‧‧Computer readable program
CC‧‧‧協作叢集 CC‧‧‧Collaborative Cluster
CAP-INFO‧‧‧能力資訊 CAP-INFO‧‧‧Function Information
D‧‧‧資料 D‧‧‧Information
DU1‧‧‧第一資料單元 DU1‧‧‧ first data unit
DU2‧‧‧第二資料單元 DU2‧‧‧Second data unit
INTERF-INFO1‧‧‧第一干擾資訊 INTERF-INFO1‧‧‧First interference information
INTERF-INFO2‧‧‧第二干擾資訊 INTERF-INFO2‧‧‧Second interference information
MS‧‧‧第二網路節點 MS‧‧‧Second network node
MODE-INFO‧‧‧傳輸模式資訊 MODE-INFO‧‧‧Transport mode information
MS-AE1‧‧‧第一天線元件 MS-AE1‧‧‧First antenna element
MS-AE2‧‧‧第二天線元件 MS-AE2‧‧‧Second antenna element
MS-AS‧‧‧天線系統 MS-AS‧‧‧Antenna System
MS-CPU‧‧‧中央處理單元 MS-CPU‧‧‧Central Processing Unit
MS-MEM‧‧‧電腦可讀媒體 MS-MEM‧‧‧Computer-readable media
MS-PROG‧‧‧電腦可讀程式 MS-PROG‧‧‧ computer readable program
MS-TR‧‧‧收發器 MS-TR‧‧‧ transceiver
RAN1‧‧‧無線電存取網路 RAN1‧‧‧ radio access network
RCS1‧‧‧無線電通訊系統 RCS1‧‧‧ Radio Communication System
RRH1‧‧‧第一遠端無線電頭端 RRH1‧‧‧ first remote radio head
RRH1-AS‧‧‧第二天線系統 RRH1-AS‧‧‧second antenna system
RRH-Cell-1‧‧‧第一無線電小區 RRH-Cell-1‧‧‧First Radio Community
RRH-Cell-2‧‧‧第二無線電小區 RRH-Cell-2‧‧‧Second Radio Community
RRH-Cell-3‧‧‧第三無線電小區 RRH-Cell-3‧‧‧ third radio cell
RRH-SU‧‧‧第一從屬單元 RRH-SU‧‧‧ first slave unit
RRH1(SU)‧‧‧第一遠端無線電頭端(從屬單元) RRH1(SU)‧‧‧first remote radio head (slave unit)
RS1‧‧‧第一參考信號 RS1‧‧‧ first reference signal
RS2‧‧‧第二參考信號 RS2‧‧‧ second reference signal
SCHED-INFO1‧‧‧第一排程資訊 SCHED-INFO1‧‧‧First Schedule Information
SCHED-INFO2‧‧‧第二排程資訊 SCHED-INFO2‧‧‧Second Schedule Information
圖1示意地展示無線電通訊網路之方塊圖。 Figure 1 shows schematically a block diagram of a radio communication network.
圖2示意地展示在無線電通訊網路之網路節點之間執行之方法之流程圖。 Figure 2 is a schematic flow diagram showing a method of execution between network nodes of a radio communication network.
圖3示意地展示使用於無線電通訊網路中之基地台之一方塊圖。 Figure 3 is a block diagram showing one of the base stations used in a radio communication network.
圖4示意地展示使用於無線電通訊網路中之行動台之一方塊圖。 Figure 4 is a block diagram showing one of the mobile stations used in a radio communication network.
ACK(NACK)‧‧‧組合肯定應答(組合否定應答) ACK (NACK) ‧ ‧ combination positive response (combined negative response)
ACK1(NACK1)‧‧‧單獨肯定應答(單獨否定應答) ACK1 (NACK1) ‧ ‧ separate positive response (individual negative response)
ACK2(NACK2)‧‧‧單獨肯定應答(單獨否定應答) ACK2 (NACK2) ‧ ‧ separate positive response (individual negative response)
BS1‧‧‧第一網路節點/第一基地台 BS1‧‧‧First Network Node/First Base Station
BS2‧‧‧第二基地台 BS2‧‧‧Second base station
CAP-INFO‧‧‧能力資訊 CAP-INFO‧‧‧Function Information
DU1‧‧‧第一資料單元 DU1‧‧‧ first data unit
DU2‧‧‧第二資料單元 DU2‧‧‧Second data unit
INTERF-INFO1‧‧‧第一干擾資訊 INTERF-INFO1‧‧‧First interference information
INTERF-INFO2‧‧‧第二干擾資訊 INTERF-INFO2‧‧‧Second interference information
MS‧‧‧第二網路節點 MS‧‧‧Second network node
MODE-INFO‧‧‧傳輸模式資訊 MODE-INFO‧‧‧Transport mode information
RRH1(SU)‧‧‧第一遠端無線電頭端(從屬單元) RRH1(SU)‧‧‧first remote radio head (slave unit)
RS1‧‧‧第一參考信號 RS1‧‧‧ first reference signal
RS2‧‧‧第二參考信號 RS2‧‧‧ second reference signal
SCHED-INFO1‧‧‧第一排程資訊 SCHED-INFO1‧‧‧First Schedule Information
SCHED-INFO2‧‧‧第二排程資訊 SCHED-INFO2‧‧‧Second Schedule Information
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US11128322B2 (en) | 2016-09-06 | 2021-09-21 | Telefonaktiebolaget Lm Ericsson (Publ) | Methods and devices for determination of beamforming information |
US11206675B2 (en) | 2016-09-06 | 2021-12-21 | Telefonaktiebolaget Lm Ericsson (Publ) | Configuration of transmission order of uplink data |
US11690059B2 (en) | 2016-09-06 | 2023-06-27 | Telefonaktiebolaget Lm Ericsson (Publ) | Configuration of transmission order of uplink data |
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