TWI676380B - Method and apparatus for transmitting signals - Google Patents
Method and apparatus for transmitting signals Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
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- H—ELECTRICITY
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Abstract
提供了一種傳輸信號的方法和設備。在該方法中，物理下行控制信道（PDCCH, physical downlink control channel）候選的所有控制信道元素（CCE, control channel element）被分配到一個正交頻分復用（OFDM, orthogonal frequency division multiplexing）符號並且使用該PDCCH候選在該OFDM符號傳輸PDCCH。A method and device for transmitting signals are provided. In this method, all control channel elements (CCE) candidates of a physical downlink control channel (PDCCH) candidate are allocated to an orthogonal frequency division multiplexing (OFDM) symbol and A PDCCH is transmitted on the OFDM symbol using the PDCCH candidate.
Description
本發明涉及通信領域，並且特別地，涉及傳輸信號的方法及設備。The present invention relates to the field of communications, and in particular, to a method and device for transmitting signals.
在長期演進（LTE，long term evolution）系統中，物理下行控制信道（PDCCH，physical downlink control channel）在子幀開始的跨整個系統帶寬的前幾個正交頻分復用（OFDM，several orthogonal frequency division multiplexing）符號上傳輸。In a long term evolution (LTE) system, the physical downlink control channel (PDCCH) at the beginning of a subframe spans the first few orthogonal frequency division multiplexes (OFDM) across the entire system bandwidth. division multiplexing) symbol.
相比於LTE系統，在5G新無線（NR，new radio）系統中，尤其是在更高的頻率帶寬（＞6GHz），可以使用更多的頻譜，並且採用了諸如波束賦形（BF，beam forming）的一些新技術。BF的使用一方面可以提高BF增益並且降低干擾，另一方面，更高頻率的波長將會減小天線陣列的尺寸並使其實施是可行的。PDCCH也可以從BF傳輸獲益，以保證其覆蓋和魯棒性。Compared with LTE systems, in 5G new radio (NR, new radio) systems, especially at higher frequency bandwidths (> 6GHz), more spectrum can be used, and such as beamforming (BF, beam) forming) of some new technologies. The use of BF can increase BF gain and reduce interference on the one hand, and higher frequency wavelengths will reduce the size of the antenna array and make it feasible. PDCCH can also benefit from BF transmission to ensure its coverage and robustness.
本發明實施例公開了一種考慮了BF特性的PDCCH設計，該設計是新的且不同於LTE系統。An embodiment of the present invention discloses a PDCCH design considering BF characteristics, which is new and different from the LTE system.
在一個實施方式中，本發明實施例的技術包括提供一種傳輸信號的方法。在該方法中，PDCCH候選的所有控制信道元素（CCE，control channel element）都被分配到一個OFDM符號，並且使用PDCCH候選在該OFDM符號上傳輸PDCCH。In one embodiment, the technology of the embodiments of the present invention includes providing a method for transmitting a signal. In this method, all control channel elements (CCEs) of a PDCCH candidate are allocated to one OFDM symbol, and the PDCCH candidate is used to transmit the PDCCH on the OFDM symbol.
在一個實施方式中，本發明實施例的技術包括提供一種傳輸信號的方法。在該方法中，一組PDCCH候選被配置用於PDCCH，並且使用該組PDCCH候選在不同的OFDM符號上重複傳輸該PDCCH。In one embodiment, the technology of the embodiments of the present invention includes providing a method for transmitting a signal. In this method, a set of PDCCH candidates is configured for the PDCCH, and the PDCCH is repeatedly transmitted on different OFDM symbols using the set of PDCCH candidates.
在一個實施方式中，本發明實施例的技術包括提供一種傳輸信號的方法。在該方法中，一組PDCCH候選被配置用於PDCCH，並且將該組PDCCH候選分散到不同的OFDM符號上。In one embodiment, the technology of the embodiments of the present invention includes providing a method for transmitting a signal. In this method, a group of PDCCH candidates is configured for the PDCCH, and the group of PDCCH candidates is dispersed on different OFDM symbols.
在一個實施方式中，本發明實施例的技術包括提供一種傳輸信號的方法。在該方法中，使用分配在同一OFDM符號上的PDCCH候選以不同的波束來傳輸PDCCH。In one embodiment, the technology of the embodiments of the present invention includes providing a method for transmitting a signal. In this method, PDCCH candidates allocated on the same OFDM symbol are used to transmit the PDCCH in different beams.
在一個實施方式中，本發明實施例的技術包括提供一種分配資源的方法。在該方法中，一個PDCCH候選的所有CCE都分配到同一個OFDM符號。In one embodiment, the technology of the embodiment of the present invention includes providing a method for allocating resources. In this method, all CCEs of one PDCCH candidate are allocated to the same OFDM symbol.
在一個實施方式中，本發明實施例的技術包括提供一種分配資源的方法。在該方法中，被配置用於一個PDDCH的所有PDCCH候選都被分配到同一個符號。In one embodiment, the technology of the embodiment of the present invention includes providing a method for allocating resources. In this method, all PDCCH candidates configured for one PDDCH are allocated to the same symbol.
在一個實施方式中，本發明實施例的技術包括提供一種分配資源的方法。在該方法中，被配置用於一個PDCCH的所有PDCCH候選被分配到不同的符號。In one embodiment, the technology of the embodiment of the present invention includes providing a method for allocating resources. In this method, all PDCCH candidates configured for one PDCCH are assigned to different symbols.
以下將結合圖式說明本申請的實施方式。The embodiments of the present application will be described below with reference to the drawings.
首先，應理解，本文中術語「系統」和「網絡」在本文中常被可互換使用。本文中術語「和/或」，僅僅是一種描述關聯對象的關聯關係，表示可以存在三種關係，例如，A和/或B，可以表示：單獨存在A，同時存在A和B，單獨存在B這三種情況。另外，本文中字符「/」，一般表示前後關聯對象是一種「或」的關係。First, it should be understood that the terms "system" and "network" are often used interchangeably in this article. The term "and / or" in this article is only a kind of association relationship describing related objects. It means that there can be three kinds of relationships. For example, A and / or B can mean: A alone exists, A and B exist simultaneously, and B alone three conditions. In addition, the character "/" in this article generally indicates that the related objects are an "or" relationship.
以下將結合圖式說明本申請的實施方式。The embodiments of the present application will be described below with reference to the drawings.
圖1示出了根據本申請的實施方式的一種無線通訊系統100。圖1所示的無線通訊系統100可以運行在高頻帶，其包括但不限於長期演進（LTE，long term evolution）系統、未來演進的第五代（5G）系統、新無線（NR，new radio）系統，以及機器對機器（M2M，machine to machine）系統。圖1中示出的無線通訊系統100僅僅用於示例性地說明本申請的實施方式的技術方案，而不是限制本申請的實施方式的範圍。所屬技術領域中具有通常知識者將會理解，隨著網絡架構的演進以及新的商業場景的出現，本文中提出的技術方案也可以用於解決其中出現的類似的技術問題。FIG. 1 illustrates a wireless communication system 100 according to an embodiment of the present application. The wireless communication system 100 shown in FIG. 1 can operate in a high frequency band, which includes, but is not limited to, a long term evolution (LTE) system, a future evolution fifth-generation (5G) system, and a new radio (NR) Systems, and machine-to-machine (M2M) systems. The wireless communication system 100 shown in FIG. 1 is only used to exemplarily describe the technical solution of the embodiment of the present application, rather than to limit the scope of the embodiment of the present application. Those with ordinary knowledge in the technical field will understand that with the evolution of network architecture and the emergence of new business scenarios, the technical solutions proposed in this article can also be used to solve similar technical problems that arise therein.
如圖1所示，無線通訊系統100可以包括一個或多個網絡設備101、一個或多個終端103，以及一核心網111。As shown in FIG. 1, the wireless communication system 100 may include one or more network devices 101, one or more terminals 103, and a core network 111.
網絡設備101可以是基地台，其可以與一個或多個終端通訊，也可以與具有終端功能的基地台通訊。在5G NR系統中，基地台可以是gNB （g-Node B）。終端103可以分佈在無線通訊系統100中。終端103可以是靜態地，也可以是移動地。在一些實施方式中，終端103可以是移動設備、移動站、移動單元、M2M終端、無線單元、遠程單元、用戶代理、移動客戶端等等。網絡設備101可以在控制器的控制下與終端103通訊。為了簡化描述，控制器未標註在圖式中。在一些實施方式中，該控制器可以是核心網111的一部分。在另一實施方式中，該控制器可以集成到網絡設備101中。網絡設備101之間可以通過諸如X2介面的回程介面107通訊。網絡設備101可以用於通過諸如S1介面的回程介面109向核心網111傳輸控制信息或用戶數據。終端103可以位於一個或多個小區105的覆蓋範圍內。The network device 101 may be a base station, which may communicate with one or more terminals, and may also communicate with a base station having a terminal function. In the 5G NR system, the base station may be gNB (g-Node B). The terminals 103 may be distributed in the wireless communication system 100. The terminal 103 may be a static ground or a mobile ground. In some embodiments, the terminal 103 may be a mobile device, a mobile station, a mobile unit, an M2M terminal, a wireless unit, a remote unit, a user agent, a mobile client, and so on. The network device 101 can communicate with the terminal 103 under the control of the controller. To simplify the description, the controller is not labeled in the drawing. In some embodiments, the controller may be part of the core network 111. In another embodiment, the controller may be integrated into the network device 101. The network devices 101 can communicate through a backhaul interface 107 such as an X2 interface. The network device 101 may be used to transmit control information or user data to the core network 111 through a backhaul interface 109 such as an S1 interface. The terminal 103 may be located within the coverage of one or more cells 105.
圖2示出了終端200。該終端200可以包括一個或多個處理器201或微處理器201、存儲器202、通訊介面203、發射器205、接收器206、耦合器207、天線208、用戶介面209、輸入/輸出設備210等。其中，上述部件可以通過總線204連接。終端200可以通過通訊介面203與諸如網絡設備的其他通訊設備通訊。發射器205可以用於發送從處理器201輸出的信號。輸入/輸出設備210可以用於實現終端200與外部環境之間的交互。存儲器202耦合至處理器201，並且用於存儲各種計算機可讀的指令或程式代碼。終端處理器201可以用於讀取並執行終端存儲器202中存儲的上述指令或程式代碼，以實現本申請的實施方式中描述的相關功能或操作。FIG. 2 illustrates a terminal 200. The terminal 200 may include one or more processors 201 or microprocessors 201, memory 202, communication interface 203, transmitter 205, receiver 206, coupler 207, antenna 208, user interface 209, input / output device 210, etc. . The above components may be connected through the bus 204. The terminal 200 can communicate with other communication devices such as a network device through the communication interface 203. The transmitter 205 may be used to transmit a signal output from the processor 201. The input / output device 210 may be used to implement interaction between the terminal 200 and an external environment. The memory 202 is coupled to the processor 201 and is used to store various computer-readable instructions or program code. The terminal processor 201 may be configured to read and execute the foregoing instructions or program codes stored in the terminal memory 202 to implement related functions or operations described in the embodiments of the present application.
圖3示出了網絡設備300。網絡設備300可以是gNB。網絡設備300可以包括至少一個處理器301、一存儲器302、一通訊介面303、一發射器305、一接收器306。上述部件可以通過總線304連接。另外，如圖3所示，網絡設備300還可以包括耦合器307和連接至耦合器307的天線308。通訊介面303可以用於網絡設備300與其他通訊設備通訊。例如，其他通訊設備可以是其他網絡設備或終端設備。發射器305可以用於將來自處理器301的信號發射到外部。處理器301可以用於無線信號管理、通訊鏈路建立，以及控制區域內用戶的小區切換控制等。處理器301用於讀取存儲器302中存儲的指令或程式代碼，以執行本申請的實施方式中提供的相關操作並實現相關功能。FIG. 3 illustrates a network device 300. The network device 300 may be a gNB. The network device 300 may include at least one processor 301, a memory 302, a communication interface 303, a transmitter 305, and a receiver 306. The aforementioned components may be connected through a bus 304. In addition, as shown in FIG. 3, the network device 300 may further include a coupler 307 and an antenna 308 connected to the coupler 307. The communication interface 303 can be used for the network device 300 to communicate with other communication devices. For example, other communication devices may be other network devices or terminal devices. The transmitter 305 may be used to transmit a signal from the processor 301 to the outside. The processor 301 may be used for wireless signal management, communication link establishment, and cell switching control of users in the control area. The processor 301 is configured to read an instruction or program code stored in the memory 302 to perform related operations and implement related functions provided in the embodiments of the present application.
以下對本實施例中所使用的一部分術語進行說明。Some terms used in this embodiment will be described below.
物理下行控制信道（PDCCH，physical downlink control channel）：PDCCH是承載下行控制信息的一組物理資源粒子，下行控制信息包括傳輸格式、資源分配、上行調度許可、功率控制、以及上行重傳信息等。Physical downlink control channel (PDCCH): The PDCCH is a group of physical resource particles carrying downlink control information. The downlink control information includes transmission format, resource allocation, uplink scheduling grant, power control, and uplink retransmission information.
在長期演進（LTE，long term evolution）系統中，如圖4所示，PDCCH在稱為控制信道元素（CCE，control channel element）的一組或多組資源上傳輸，並且每個CCE被進一步分成多個資源元素組（REG，resource element group）。來自不同PDCCH的REG交錯並遍布整個下行控制區，以獲得分集增益。In a long term evolution (LTE) system, as shown in FIG. 4, the PDCCH is transmitted on one or more groups of resources called control channel elements (CCEs), and each CCE is further divided into Multiple resource element groups (REGs). REGs from different PDCCHs are interleaved and spread throughout the entire downlink control region to obtain diversity gain.
PDCCH候選（candidate）：PDCCH候選是可以用於傳輸PDCCH的一組時-頻資源元素（RE，resource element）。一組PDCCH候選包括至少一個可以被配置用於一個PDCCH的候選。PDCCH candidate: A PDCCH candidate is a set of time-frequency resource elements (REs) that can be used to transmit a PDCCH. A set of PDCCH candidates includes at least one candidate that can be configured for one PDCCH.
CCE聚合度（AL，aggregation level，又稱聚合等級）：CCE AL表示PDCCH佔用的連續CCE的數量。不同的CCE AL可以適應PDCCH的不同性能要求。對於每個CCE AL，可以有多個PDCCH候選。CCE aggregation level (AL, aggregation level, also known as aggregation level): CCE AL represents the number of consecutive CCEs occupied by the PDCCH. Different CCE ALs can adapt to different performance requirements of the PDCCH. For each CCE AL, there can be multiple PDCCH candidates.
在調度UE時，eNB將選擇正確的CCE AL和候選，並且使用該組時-頻資源來傳輸PDCCH。在UE側，UE將對這些PDCCH候選進行盲解碼（BD，blind decoding），直到找到其PDCCH。如圖5所示，不同CCE AL的不同PDCCH候選在時-頻上可能會重疊。從圖5中可以看出，CCE AL=1表示一個PDCCH候選佔用一個CCE，類似地，CCE AL=3表示一個PDCCH候選佔用三個CCE。When scheduling the UE, the eNB will select the correct CCE AL and candidate, and use this set of time-frequency resources to transmit the PDCCH. On the UE side, the UE will perform blind decoding (BD) on these PDCCH candidates until its PDCCH is found. As shown in FIG. 5, different PDCCH candidates of different CCE ALs may overlap in time-frequency. It can be seen from FIG. 5 that CCE AL = 1 indicates that one PDCCH candidate occupies one CCE, and similarly, CCE AL = 3 indicates that one PDCCH candidate occupies three CCEs.
波束鏈路對（BLP，beam link pair）及其應用Beam link pair (BLP) and its application
如上所述，在5G NR系統中可以採用BF，並且系統側和用戶設備側都可以傳輸BF和接收BF以增大BF增益。如圖6所示，不同的傳輸波束和接收波束可以來自不同的BLP並且每個BLP的接收性能有可能不同。As described above, BF can be adopted in a 5G NR system, and both the system side and the user equipment side can transmit BF and receive BF to increase the BF gain. As shown in FIG. 6, different transmission beams and reception beams may come from different BLPs and the reception performance of each BLP may be different.
從傳輸（發射）角度看，如果使用了模擬BF技術，則整個OFDM符號可以在同一波束上傳輸。因此，為了確保PDCCH可以在正確的波束上被傳輸到UE，系統可以在不同的時刻使用不同的波束來向UE傳輸PDCCH。系統側的這種操作對於UE來說是透明的，因為切換可以動態地發生，並且系統側在傳輸PDCCH之前可能不向UE發送任何信號來通知UE這種變化。PDCCH候選以及搜索空間可以被設計為應對該問題，並且能夠改善BLP切換以及PDCCH傳輸的魯棒性。From the perspective of transmission (transmission), if the analog BF technology is used, the entire OFDM symbol can be transmitted on the same beam. Therefore, in order to ensure that the PDCCH can be transmitted to the UE on the correct beam, the system can use different beams to transmit the PDCCH to the UE at different times. This operation on the system side is transparent to the UE because the handover can occur dynamically and the system side may not send any signal to the UE to notify the UE of this change before transmitting the PDCCH. The PDCCH candidate and search space can be designed to cope with this problem, and can improve the robustness of BLP switching and PDCCH transmission.
整個PDCCH候選的分配Allocation of entire PDCCH candidates
作為一種實施方式，在傳輸信號的方法中，PDCCH候選的所有控制信道元素（CCE）被分配到一個OFDM符號，並且使用PDCCH候選在該OFDM符號上傳輸PDDCH。從圖7和圖8可以更好地理解該過程。在圖7和圖8中，OFDM符號上的每個塊都代表一個候選。這樣，UE可以首先在第一個符號上搜索其PDCCH候選，如果沒有正確地解碼，則UE可以開始在第二個符號上搜索其PDCCH候選，以此類推。因此，這可以便於UE的盲解碼。As an implementation manner, in a method of transmitting a signal, all control channel elements (CCEs) of a PDCCH candidate are allocated to one OFDM symbol, and a PDDCH is transmitted on the OFDM symbol using the PDCCH candidate. This process can be better understood from Figures 7 and 8. In Figures 7 and 8, each block on the OFDM symbol represents a candidate. In this way, the UE may first search for its PDCCH candidate on the first symbol, if it is not decoded correctly, the UE may start searching for its PDCCH candidate on the second symbol, and so on. Therefore, this can facilitate blind decoding by the UE.
需要注意的是，為了便於說明，在本文中使用了OFDM符號作為實例，但是本發明實施例的技術方案也可以應用於諸如單載波頻分多址接入（SC-FDMA，single-carrier frequency-division multiple access）符號的其他符號以及將來可能出現的用於承載PDCCH的其他符號和載波。It should be noted that, for convenience of explanation, the OFDM symbol is used as an example in this article, but the technical solution of the embodiment of the present invention can also be applied to single-carrier frequency-single-carrier frequency- other symbols of the division multiple access) symbol and other symbols and carriers that may appear in the future to carry the PDCCH.
在本文提出的PDCCH候選的分配方案中，一整個PDCCH候選（及對應的CCE）被分配到同一個OFDM符號。換句話說，在本申請提供的技術方案中，是以候選而不是REG為單位進行資源分配。In the PDCCH candidate allocation scheme proposed herein, an entire PDCCH candidate (and corresponding CCE) is allocated to the same OFDM symbol. In other words, in the technical solution provided in the present application, resource allocation is performed in units of candidates instead of REGs.
而在圖4示出的LTE系統中，同一PDCCH候選的REG是跨控制區的不同OFDM符號分配的，從圖4中可以看出，符號中的每個方塊標識一個REG。本申請的分配方案與LTE的分配方案存在這種差異的原因在於所使用的技術的不同。在LTE系統中，並沒有將BF技術用於PDCCH，因此，PDCCH被分成多個CCE並且被進一步分成多組REG，而不同PDCCH的REG被交錯分配到不同的OFDM符號，以在時間和頻率上獲得分集增益。作為比較，在5G NR中，使用了BF技術並且使用不同的OFDM符號在不同的傳輸波束上傳輸。In the LTE system shown in FIG. 4, REG candidates of the same PDCCH candidate are allocated to different OFDM symbols across the control region. As can be seen from FIG. 4, each block in the symbol identifies one REG. The reason for the difference between the allocation scheme of the present application and the LTE allocation scheme lies in the different technologies used. In the LTE system, the BF technology is not used for the PDCCH. Therefore, the PDCCH is divided into multiple CCEs and further divided into multiple groups of REGs, and the REGs of different PDCCHs are staggered and allocated to different OFDM symbols in time and frequency Get diversity gain. For comparison, in 5G NR, BF technology is used and different OFDM symbols are used to transmit on different transmission beams.
如上所述，可以為一個PDCCH配置一組PDCCH候選（可能包括一個或多個PDCCH候選）。基於此，下文中，將描述如何在OFDM符號上分配一個PDDCH的PDCCH候選以及如何傳輸PDCCH。例如，在一種傳輸信號的方法中，為一個PDCCH配置的一組PDCCH候選可以被分配到一個OFDM符號，並且可以使用該組PDCCH候選在該OFDM符號上用不同的波束傳輸該PDCCH。該PDCCH可以在不同OFDM符號上重複傳輸。可選地，為一個PDCCH配置的一組PDCCH候選可以分到不同的OFDM符號上，也就是說，分散到兩個或兩個以上的OFDM符號上，並且可以用相同或不同的波束在該不同的OFDM符號上傳輸PDCCH。以下將分別詳細描述這些技術方案的具體實施方式。As described above, a set of PDCCH candidates (which may include one or more PDCCH candidates) may be configured for one PDCCH. Based on this, hereinafter, how to allocate a PDCCH candidate for a PDDCH on an OFDM symbol and how to transmit the PDCCH. For example, in a method of transmitting a signal, a group of PDCCH candidates configured for one PDCCH may be allocated to one OFDM symbol, and the PDCCH candidate may be transmitted with different beams on the OFDM symbol using the group of PDCCH candidates. The PDCCH can be repeatedly transmitted on different OFDM symbols. Optionally, a group of PDCCH candidates configured for one PDCCH may be divided into different OFDM symbols, that is, dispersed into two or more OFDM symbols, and the same or different beams may be used in the different PDCCH on OFDM symbols. Specific implementations of these technical solutions will be described in detail below.
實施方式1Embodiment 1
在該實施方式中，我們將討論如何使用PDCCH候選在不同的OFDM符號上傳輸PDCCH。In this embodiment, we will discuss how to use PDCCH candidates to transmit PDCCH on different OFDM symbols.
如圖7所示，PDCCH候選被分配到不同的OFDM符號上，並且可以使用該PDCCH候選分別用不同方向的波束來傳輸PDCCH。PDCCH #1和PDCCH #2的PDCCH候選被分別分配在不同的OFDM符號上，即，OFDM符號#1和OFDM符號#2，並且使用不同的波束來傳輸每個OFDM符號上的PDCCH。這可以便於PDCCH在不同傳輸波束上的傳輸，因此可以降低波束不匹配的風險，並且增大PDCCH傳輸的魯棒性。As shown in FIG. 7, the PDCCH candidate is allocated to different OFDM symbols, and the PDCCH candidate can be used to transmit the PDCCH with beams in different directions, respectively. The PDCCH candidates of PDCCH # 1 and PDCCH # 2 are respectively allocated on different OFDM symbols, that is, OFDM symbol # 1 and OFDM symbol # 2, and different beams are used to transmit the PDCCH on each OFDM symbol. This can facilitate the transmission of the PDCCH on different transmission beams, thus reducing the risk of beam mismatch and increasing the robustness of the PDCCH transmission.
PDCCH候選（在圖7中，對於每個PDCCH，在一個OFDM符號上僅示出了一個候選）可以在不同OFDM符號上重複分配，因此，使用這些PDCCH候選的PDCCH可以用不同波束在不同OFDM符號上重複傳輸。參照圖7，分配到OFDM符號#1的PDCCH候選（連同對應的CCE）被重複地分配到OFDM符號#2。PDCCH candidates (in FIG. 7, for each PDCCH, only one candidate is shown on one OFDM symbol) can be repeatedly allocated on different OFDM symbols, so PDCCHs using these PDCCH candidates can use different beams on different OFDM symbols Repeated transmissions. Referring to FIG. 7, the PDCCH candidate (along with the corresponding CCE) allocated to the OFDM symbol # 1 is repeatedly allocated to the OFDM symbol # 2.
就一個PDCCH而言，為該PDCCH配置的PDCCH候選可以分配到一個OFDM符號上。As for a PDCCH, a PDCCH candidate configured for the PDCCH can be allocated to an OFDM symbol.
可選地，為一個PDCCH配置的PDCCH候選可以分散到不同的符號上，並且可以使用這些PDCCH候選在不同的符號上以不同波束傳輸PDCCH。也就是說，不同PDCCH候選（連同對應的CCE）可以被分配到不同的OFDM上，並且可以使用這些PDCCH候選在不同OFDM符號上傳輸PDCCH。這將下下文中參照實施方式3詳細描述。Optionally, the PDCCH candidates configured for one PDCCH may be scattered on different symbols, and these PDCCH candidates may be used to transmit the PDCCH in different beams on different symbols. That is, different PDCCH candidates (along with corresponding CCEs) can be allocated to different OFDMs, and these PDCCH candidates can be used to transmit PDCCHs on different OFDM symbols. This will be described in detail below with reference to Embodiment 3.
不同/相同的PDCCH候選（連同所有對應的CCE）可以被分配到不同的OFDM符號，並且可以使用這些PDCCH候選在不同波束上傳輸PDCCH，因此利用了BF增益，還避免了系統和UE之間的波束不匹配。Different / identical PDCCH candidates (together with all corresponding CCEs) can be assigned to different OFDM symbols, and these PDCCH candidates can be used to transmit PDCCH on different beams, so the BF gain is utilized, and the Beam mismatch.
可選地，使用分配到不同OFDM符號的PDCCH候選的PDCCH，可以使用相同的波束來傳輸。例如，如果一個OFDM符號上的負載非常小，或者在該OFDM符號上分配了很少的候選或者沒有分配候選，則不同的OFDM符號可以使用相同的波束用於傳輸。也就是說，在本發明實施例提供的技術方案中，是否對不同的符號使用相同或不同的波束沒有嚴格限制，而是可以根據例如符號的負載靈活地配置。Alternatively, PDCCHs using PDCCH candidates allocated to different OFDM symbols may be transmitted using the same beam. For example, if the load on one OFDM symbol is very small, or there are few or no candidates assigned to the OFDM symbol, different OFDM symbols can use the same beam for transmission. That is, in the technical solution provided by the embodiment of the present invention, whether to use the same or different beams for different symbols is not strictly limited, but can be flexibly configured according to, for example, the load of the symbols.
實施方式2Embodiment 2
在該實施方式中，我們將討論如何使用在同一符號上的PDCCH候選來傳輸PDCCH。In this embodiment, we will discuss how to use a PDCCH candidate on the same symbol to transmit a PDCCH.
假設系統側或5G NR系統中的gNB（gNB與LTE中的中的eNB類似，這裡，還可以是其他接入裝置）具有多個天線陣列收發器面板，即，假設採用數字BF，則可以在同一OFDM符號上形成不同傳輸/接收波束。在該情況下，為其配置了不同PDCCH候選的PDCCH，可以在同一OFDM符號上且從不同的傳輸波束傳輸，以增大波束覆蓋和獲得能量增益，尤其是當UE在移動時，這特別有利。Assume that the system side or the gNB in the 5G NR system (gNB is similar to the eNB in LTE, and here can also be other access devices) has multiple antenna array transceiver panels, that is, assuming digital BF, it can be used in Different transmit / receive beams are formed on the same OFDM symbol. In this case, PDCCHs configured with different PDCCH candidates can be transmitted on the same OFDM symbol and from different transmission beams to increase beam coverage and obtain energy gain, which is particularly advantageous when the UE is moving. .
如圖8所示，PDCCH #1將使用PDCCH候選#1-a和PDCCH候選#1-b以不同的波束來傳輸，其中，PDCCH候選#1-a和PDCCH候選#1-b分別落入不同波束的覆蓋範圍。這同樣適用於PDCCH #2。PDCCH #2將使用PDCCH候選#2-a和PDCCH候選#2-b以不同的波束來傳輸，其中，PDCCH候選#2-a和PDCCH候選#2-b分別落入不同波束的覆蓋範圍。As shown in FIG. 8, PDCCH # 1 will use PDCCH candidate # 1-a and PDCCH candidate # 1-b to transmit in different beams, where PDCCH candidate # 1-a and PDCCH candidate # 1-b fall into different ones, respectively. Beam coverage. The same applies to PDCCH # 2. PDCCH # 2 will use PDCCH candidate # 2-a and PDCCH candidate # 2-b to transmit in different beams, where PDCCH candidate # 2-a and PDCCH candidate # 2-b fall into the coverage of different beams, respectively.
與實施方式1類似，圖8中示出的OFDM符號上的四個PDCCH候選可以被重複地分配到其他OFDM符號，並且PDCCH可以用與圖8中示出的OFDM符號的波束不同的波束來傳輸。Similar to Embodiment 1, the four PDCCH candidates on the OFDM symbol shown in FIG. 8 may be repeatedly assigned to other OFDM symbols, and the PDCCH may be transmitted with a beam different from that of the OFDM symbol shown in FIG. 8. .
如果UE沒有接收到關於控制區的OFDM符號的總數的信息，則這些實施方式可以有助於UE的盲解碼。UE可以首先在第一個符號上搜索其PDCCH候選，如果沒有成功解碼，則可以開始在第二個符號上搜索其PDCCH候選，以此類推。根據本發明實施例的方法還降低了UE側的解碼延遲，這是因為，UE可以在接收到第一個符號之後就開始在第一個符號上對PDCCH候選進行解碼，而無需在開始PDCCH解碼過程之前緩存第二個符號和第三個符號。If the UE does not receive information about the total number of OFDM symbols of the control region, these embodiments may facilitate blind decoding of the UE. The UE may first search for its PDCCH candidate on the first symbol, if it is not successfully decoded, it may start searching for its PDCCH candidate on the second symbol, and so on. The method according to the embodiment of the present invention also reduces the decoding delay on the UE side, because the UE can start decoding PDCCH candidates on the first symbol after receiving the first symbol, without having to start PDCCH decoding The second and third symbols are cached before the procedure.
然而，上述的這種重複分配的方式可能會增加PDCCH候選的總數，因此會增大UE的盲解碼量。鑒於此，以下給出了另一種實施方式。However, the above-mentioned repeated allocation manner may increase the total number of PDCCH candidates, and therefore increase the blind decoding amount of the UE. In view of this, another embodiment is given below.
實施方式3Embodiment 3
為了保持總的盲解碼不變，PDCCH候選也可以分散（split）分配到不同的OFDM符號上。例如，如圖9所示，不同CCE AL的PDCCH候選被平均地分到不同的OFDM符號上。分配到每個OFDM符號的PDCCH候選可以包括不同CCE AL的PDCCH候選。In order to keep the total blind decoding constant, PDCCH candidates can also be split and allocated to different OFDM symbols. For example, as shown in FIG. 9, PDCCH candidates of different CCE ALs are evenly divided into different OFDM symbols. The PDCCH candidates allocated to each OFDM symbol may include PDCCH candidates of different CCE ALs.
圖10示出了另一種可能的分配方式。與圖9所示的方案不同，在圖10中，PDCCH候選並不是平均分散的。同一CCE AL的PDCCH候選可以分配到不同的符號或者同一個符號。例如，CCE AL=4的PDCCH候選被分到OFDM符號#2。當然，這些分散的分配方式僅僅是示例性的，本發明實施例不限於此。Figure 10 shows another possible allocation. Unlike the scheme shown in FIG. 9, in FIG. 10, the PDCCH candidates are not evenly dispersed. PDCCH candidates of the same CCE AL may be allocated to different symbols or the same symbol. For example, a PDCCH candidate with CCE AL = 4 is assigned to OFDM symbol # 2. Of course, these decentralized allocation manners are merely exemplary, and embodiments of the present invention are not limited thereto.
實施方式3中提供的這種PDCCH候選分配方式可以半靜態地配置，並且通過更高層信號或信令發送到UE。發送到UE的配置信息可以包括每個OFDM符號上分配的PDCCH候選的總數，每個OFDM符號上分配的每個CCE AL的PDCCH候選的數量，還可以是每個OFDM符號上的PDCCH候選的位置信息。上述配置信息還可以包括該UE的PDCCH候選可以被分配到的OFDM符號總數，其可以與控制區的OFDM符號的總數相同，也可以不同。例如，如果總控制區（或控制資源集合）在時域具有三個OFDM符號，則UE的配置信息可以只包括前兩個OFDM符號，即，第一個OFDM符號和第二個OFDM符號。在另一個實例中，該UE的配置信息可以只包括後兩個OFDM符號，即，三個OFDM符號控制資源集合中的第二個OFDM符號和第三個OFDM符號。每個OFDM符號上分配的不同數量的PDCCH候選可以是基於波束的覆蓋、每個OFDM符號上形成的波束（例如，波束數量，波束類型，波束位置等其他波束相關的信息，本發明對此不做限制）、以及每個OFDM符號上的負載。例如，如果gNB知道UE在某個波束的覆蓋範圍內，則gNB可以將該UE的大部分PDCCH候選分配到在該波束傳輸的OFDM符號上。如果UE在兩個波束重疊的覆蓋區域內，則gNB可以將PDCCH候選分配到分別在兩個波束傳輸的OFDM符號上。This PDCCH candidate allocation manner provided in Embodiment 3 can be semi-statically configured and sent to the UE through a higher layer signal or signaling. The configuration information sent to the UE may include the total number of PDCCH candidates allocated on each OFDM symbol, the number of PDCCH candidates per CCE AL allocated on each OFDM symbol, or the position of the PDCCH candidates on each OFDM symbol information. The above configuration information may further include the total number of OFDM symbols to which the PDCCH candidate of the UE can be allocated, which may be the same as or different from the total number of OFDM symbols in the control region. For example, if the total control area (or control resource set) has three OFDM symbols in the time domain, the configuration information of the UE may include only the first two OFDM symbols, that is, the first OFDM symbol and the second OFDM symbol. In another example, the configuration information of the UE may include only the last two OFDM symbols, that is, the second OFDM symbol and the third OFDM symbol in the three OFDM symbol control resource set. The different number of PDCCH candidates allocated on each OFDM symbol may be based on the coverage of the beam, the beam formed on each OFDM symbol (for example, the number of beams, beam type, beam position, and other beam-related information. Limits), and the load on each OFDM symbol. For example, if the gNB knows that the UE is within the coverage of a certain beam, the gNB may allocate most of the PDCCH candidates of the UE to the OFDM symbols transmitted on the beam. If the UE is within a coverage area where the two beams overlap, the gNB may allocate PDCCH candidates to OFDM symbols transmitted on the two beams, respectively.
實施方式4Embodiment 4
可選地，如果一個OFDM符號上的負載（即，在該OFDM符號上傳輸的所有UE的PDCCH候選的數量）為飽和（full）或者幾乎為飽和（對於是否飽和，gNB可以基於從UE反饋的不連續傳輸（DTX，discontinuous transmission）來確定），則gNB可以將PDCCH候選分配到其他OFDM符號。這裡，不同的OFDM符號可以用相同或不同的波束來傳輸，因此使得資源分配更靈活。Optionally, if the load on one OFDM symbol (that is, the number of PDCCH candidates for all UEs transmitted on the OFDM symbol) is full or almost saturated (for whether it is saturated, gNB may be based on the feedback from the UE) Discontinuous transmission (DTX) to determine), the gNB can assign PDCCH candidates to other OFDM symbols. Here, different OFDM symbols can be transmitted with the same or different beams, thus making resource allocation more flexible.
圖11中示出了一個實例。如圖11所示，一開始，用於PDCCH#1的五個PDCCH候選和用於PDCCH#2的兩個PDCCH候選被分配到OFDM符號#1，而沒有候選被分配到OFDM符號#2。因此，OFDM符號#1的負載可能很大，考慮到平衡和傳輸可靠性，用於PDCCH#1的兩個PDCCH候選和用於PDCCH#2的一個PDCCH候選可以例如從OFDM符號#1移動到OFDM符號#2，移動後的結果在圖11的下半部分示出。可選地，PDCCH#2的所有PDCCH候選可以移動到OFDM符號#2，而PDCCH#1的PDCCH候選在OFDM符號#1。An example is shown in FIG. 11. As shown in FIG. 11, initially, five PDCCH candidates for PDCCH # 1 and two PDCCH candidates for PDCCH # 2 are allocated to OFDM symbol # 1, and no candidate is allocated to OFDM symbol # 2. Therefore, the load of OFDM symbol # 1 may be large. In consideration of balance and transmission reliability, two PDCCH candidates for PDCCH # 1 and one PDCCH candidate for PDCCH # 2 can be moved from OFDM symbol # 1 to OFDM, for example. Symbol # 2, the result after the movement is shown in the lower half of FIG. 11. Optionally, all PDCCH candidates of PDCCH # 2 may be moved to OFDM symbol # 2, and PDCCH candidates of PDCCH # 1 are at OFDM symbol # 1.
在不衝突的情況下，以上不同實施方式中描述的技術方案可以相互組合和替換。例如，實施方式4的技術方案可以與實施方式1-3中的任一個組合。Without conflict, the technical solutions described in the above different embodiments can be combined and replaced with each other. For example, the technical solution of Embodiment 4 can be combined with any of Embodiments 1-3.
這裡提供的技術方案可以支持PDCCH的BF，並且便於在不同的傳輸波束上傳輸PDCCH，因此降低了波束不匹配的風險並且增大了PDCCH傳輸的魯棒性。上述技術方案還可以用於更有效地為控制信道在不同的OFDM符號上分配控制資源，並且降低整體阻塞率。PDCCH候選的這種靈活資源分配可以減少UE的BD。The technical solution provided here can support the BF of the PDCCH and facilitate the transmission of the PDCCH on different transmission beams, thus reducing the risk of beam mismatch and increasing the robustness of PDCCH transmission. The above technical solution can also be used to more effectively allocate control resources on different OFDM symbols for the control channel and reduce the overall blocking rate. This flexible resource allocation of PDCCH candidates can reduce the BD of the UE.
另外，為了降低BD和阻塞率，為每個UE分配的PDCCH候選的數量可以半靜態地配置。例如，如果UE在小區邊緣並且難以接收PDCCH，則gNB可以為該UE分配更多的PDCCH候選；因為UE被分配了更多的PDCCH候選，因此該UE可以有更多的機會來進行正確的接收。相反，如果UE在小區中央並且具有良好的信號與干擾加噪聲比（SINR，signal to interference plus noise ratio），則gNB可以減少為其分配的PDCCH候選的總量，為其他UE留下更多的資源，同時，這樣也可以降低該UE的BD以達到省電的目的。基於上述原理，對於每個UE，還可以以半靜態的方式調整每個CCE AL的PDCCH候選。In addition, in order to reduce the BD and blocking rate, the number of PDCCH candidates allocated for each UE may be semi-statically configured. For example, if the UE is at the cell edge and it is difficult to receive the PDCCH, the gNB can allocate more PDCCH candidates for the UE; because the UE is allocated more PDCCH candidates, the UE can have more opportunities to receive correctly . In contrast, if the UE is in the center of the cell and has a good signal to interference plus noise ratio (SINR), the gNB can reduce the total number of PDCCH candidates allocated to it, leaving more for other UEs. At the same time, this can also reduce the BD of the UE to achieve the purpose of power saving. Based on the above principle, for each UE, the PDCCH candidate of each CCE AL can also be adjusted in a semi-static manner.
設備device
根據本發明實施例，還提供了一種傳輸信號的設備。在具體實施中，該設備可以使用上述的PDCCH設計並且可以用於執行上述的傳輸信號的方法。According to an embodiment of the present invention, a device for transmitting signals is also provided. In a specific implementation, the device may use the above-mentioned PDCCH design and may be used to perform the above-mentioned method for transmitting a signal.
圖12是示出根據本發明實施例的傳輸信號的設備的框圖。如圖12所示，一設備40可以包括一控制單元42和一傳輸單元44。設備40可以佈置在gNB側並且與UE通信。分配單元42可以是集成有資源配置功能的處理器等。傳輸單元44可以是發射器、收發器、天線、無線傳輸設備、以及配備有傳輸功能的其他設備。FIG. 12 is a block diagram illustrating a signal transmitting apparatus according to an embodiment of the present invention. As shown in FIG. 12, a device 40 may include a control unit 42 and a transmission unit 44. The device 40 may be arranged on the gNB side and communicate with the UE. The allocation unit 42 may be a processor or the like integrated with a resource allocation function. The transmission unit 44 may be a transmitter, a transceiver, an antenna, a wireless transmission device, and other devices equipped with a transmission function.
在傳輸信號的過程中，分配單元42可以配置為將PDCCH候選的所有CCE都分配到一個OFDM符號上，並且傳輸單元44可以配置為使用該OFDM符號上的PDCCH候選來傳輸PDCCH。In the process of transmitting signals, the allocation unit 42 may be configured to allocate all CCEs of the PDCCH candidate to one OFDM symbol, and the transmission unit 44 may be configured to use the PDCCH candidate on the OFDM symbol to transmit the PDCCH.
在一個實施方式中，傳輸單元44可以使用PDCCH候選在同一個OFDM符號上用不同的波束來傳輸對應的PDCCH。在另一個實施方式中，傳輸單元44可以使用PDCCH候選在不同OFDM符號上用相同或不同的波束來傳輸PDCCH。In one embodiment, the transmission unit 44 may use a PDCCH candidate to transmit a corresponding PDCCH with different beams on the same OFDM symbol. In another embodiment, the transmission unit 44 may use the PDCCH candidate to transmit the PDCCH with the same or different beams on different OFDM symbols.
上述方法實施例的細節同樣適用於該設備實施例，因此，對於相同或相似的內容將不再重複描述。The details of the foregoing method embodiment are also applicable to the device embodiment, and therefore, the same or similar content will not be described repeatedly.
本發明實施例描述的某些方面可以實現為計算機程式產品或軟件，例如，其可以包括上面存儲有指令的計算機可讀存儲介質或非易失性機器可讀介質，該程式可以用於對計算機系統（或其他電子設備）或處理器編程，以執行根據本發明實施例的分配資源的方法或傳輸信號的方法。非易失性機器可讀介質可以包括用於存儲機器（例如，計算機）可讀的形式（例如，軟件，處理應用程式等）的信息的任何存儲機制。非易失性機器可讀介質的形式例如可以包括但不限於磁存儲介質、光學存儲介質（例如，CD-ROM）、磁-光學存儲介質、唯讀存儲器（ROM，read only memory）、隨機接入存儲器（RAM，random access memory）、快閃記憶體等。Certain aspects described in the embodiments of the present invention may be implemented as a computer program product or software, for example, it may include a computer-readable storage medium or a non-volatile machine-readable medium on which instructions are stored, and the program may be used for computer The system (or other electronic device) or processor is programmed to execute a method for allocating resources or a method for transmitting signals according to an embodiment of the present invention. Non-volatile machine-readable media may include any storage mechanism for storing information in a form (eg, software, processing application, etc.) readable by a machine (eg, a computer). The form of the non-volatile machine-readable medium may include, but is not limited to, magnetic storage media, optical storage media (for example, CD-ROM), magnetic-optical storage media, read only memory (ROM), random access RAM (random access memory), flash memory, etc.
基於此，圖13示出了一設備50，該設備50中設置有一處理器52、以及經由一總線（BUS）54與處理器52連接的一個或多個介面56。Based on this, FIG. 13 shows a device 50. The device 50 is provided with a processor 52 and one or more interfaces 56 connected to the processor 52 via a bus 54.
處理器52可以用於讀取並執行計算機可讀指令。在一個實施方式中，處理器52主要包括控制器、運算器、寄存器等，並且處理器52的硬件架構可以是專用集成電路（ASIC，application specific integrated circuit）體系結構、不具有互鎖管道級（MIPS）結構的微處理器、高級精簡指令集計算機（RISC，advanced reduced instruction set computer）機器（ARM，advanced RISC machine）體系結構、或者網絡處理器（NP，network processor）架構。The processor 52 may be used to read and execute computer-readable instructions. In one embodiment, the processor 52 mainly includes a controller, an arithmetic unit, a register, and the like, and the hardware architecture of the processor 52 may be an application specific integrated circuit (ASIC) architecture without interlocking pipeline stages ( Microprocessor (MIPS) architecture, advanced reduced instruction set computer (RISC) advanced RISC machine (ARM) architecture, or network processor (NP) architecture.
介面56可以用於將待處理器數據輸入到處理器52和/或將處理器52的處理結果輸出到外部。介面56可以與諸如顯示器、攝像頭、射頻模塊等的一個或多個外圍設備相連。The interface 56 may be used to input data to be processed to the processor 52 and / or output processing results of the processor 52 to the outside. The interface 56 may be connected to one or more peripheral devices such as a display, a camera, a radio frequency module, and the like.
結合本發明實施例提供的技術方案，處理器52可以從存儲器中調用關於本發明實施例的傳輸信號的方法的程式，並且執行程式中包含的指令，以實現諸如資源配置和信號傳輸的相關操作。介面56可以配置為輸出資源分配的結果，從而收發器或發射器可以基於分配的資源傳輸信號。With reference to the technical solution provided by the embodiment of the present invention, the processor 52 may call a program related to the method for transmitting a signal from an embodiment of the present invention and execute instructions included in the program to implement related operations such as resource allocation and signal transmission . The interface 56 may be configured to output a result of resource allocation, so that the transceiver or transmitter may transmit signals based on the allocated resources.
通過本文描述的技術方案，提供了一種可以滿足5G NR的需求的新的PDCCH設計。這種PDCCH設計可以支持PDCCH的BF，並且可以避免PDCCH的波束不匹配，還可以支持PDCCH候選的靈活資源分配，並且減少每個UE的BD以及整體阻塞率。Through the technical solution described herein, a new PDCCH design that can meet the requirements of 5G NR is provided. This PDCCH design can support the BF of the PDCCH, and can avoid PDCCH beam mismatch, can also support flexible resource allocation of PDCCH candidates, and reduce the BD of each UE and the overall blocking rate.
以上已經描述了根據本發明實施例的傳輸信號的方法和設備的具體實施方式。但是，對於所屬技術領域中具有通常知識者來說，可以理解，以上的實施方式僅僅是用於說明的目的而非對本發明進行任何限制。在不背離本發明的精神和範圍的情況下，可以對本發明實施例進行各種修改和變形，而這種修改和變形，均在本發明的保護範圍之內。The specific embodiments of the method and device for transmitting signals according to the embodiments of the present invention have been described above. However, for those having ordinary knowledge in the technical field, it can be understood that the above embodiments are only for the purpose of illustration and do not limit the present invention in any way. Various modifications and variations can be made to the embodiments of the present invention without departing from the spirit and scope of the present invention, and such modifications and variations are all within the protection scope of the present invention.
100‧‧‧無線通訊系統100‧‧‧Wireless communication system
101‧‧‧網絡設備101‧‧‧ network equipment
103‧‧‧終端103‧‧‧Terminal
105‧‧‧小區105‧‧‧Community
107、109‧‧‧回程介面107, 109‧‧‧ return interface
111‧‧‧核心網111‧‧‧ Core Network
200‧‧‧終端200‧‧‧Terminal
300‧‧‧網絡設備300‧‧‧ network equipment
201、301‧‧‧處理器201, 301‧‧‧ processors
202、302‧‧‧存儲器202, 302‧‧‧Memory
203、303‧‧‧通訊介面203, 303‧‧‧ communication interface
204、304‧‧‧總線204, 304‧‧‧bus
205、305‧‧‧發射器205, 305‧‧‧ launchers
206、306‧‧‧接收器206, 306‧‧‧ receiver
207、307‧‧‧耦合器207, 307‧‧‧ coupler
208、308‧‧‧天線208, 308‧‧‧ antenna
209‧‧‧用戶介面209‧‧‧user interface
210‧‧‧輸入/輸出設備210‧‧‧ input / output devices
40‧‧‧設備40‧‧‧ Equipment
42‧‧‧配置單元42‧‧‧Configuration Unit
44‧‧‧傳輸單元44‧‧‧Transmission Unit
50‧‧‧設備50‧‧‧ Equipment
52‧‧‧處理器52‧‧‧Processor
54‧‧‧總線54‧‧‧Bus
56‧‧‧介面56‧‧‧ interface
圖1示出了無線通信系統。Figure 1 shows a wireless communication system.
圖2示出了終端。Figure 2 shows the terminal.
圖3示出了網絡設備。Figure 3 shows a network device.
圖4示出了LTE中的PDCCH結構。FIG. 4 shows a PDCCH structure in LTE.
圖5示出了PDCCH候選的一個實例。FIG. 5 shows an example of a PDCCH candidate.
圖6示出了5G NR系統中的波束鏈路對。Figure 6 shows beam link pairs in a 5G NR system.
圖7示出了不同OFDM符號上的PDCCH候選用不同波束來傳輸的示意圖。FIG. 7 shows a schematic diagram of PDCCH candidates on different OFDM symbols being transmitted with different beams.
圖8示出了同一OFDM符號上的PDCCH候選用不同波束來傳輸的示意圖。FIG. 8 shows a schematic diagram of transmitting PDCCH candidates on the same OFDM symbol using different beams.
圖9示出了其中一組PDCCH候選被分開的示意圖。FIG. 9 shows a schematic diagram in which a group of PDCCH candidates are separated.
圖10示出了其中一組PDCCH候選被分開的另一示意圖。FIG. 10 shows another schematic diagram in which a group of PDCCH candidates are separated.
圖11示出了其中PDCCH候選被重新分配的示意圖。FIG. 11 shows a schematic diagram in which PDCCH candidates are reassigned.
圖12是根據本發明實施例的傳輸信號的設備的框圖。FIG. 12 is a block diagram of a signal transmission device according to an embodiment of the present invention.
圖13是根據本發明實施例的設備的框圖。FIG. 13 is a block diagram of a device according to an embodiment of the present invention.
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