CN115174316A

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Info

Publication number: CN115174316A
Application number: CN202110362966.XA
Authority: CN
Inventors: 张萌
Original assignee: Spreadtrum Communications Shanghai Co Ltd
Current assignee: Spreadtrum Communications Shanghai Co Ltd
Priority date: 2021-04-02
Filing date: 2021-04-02
Publication date: 2022-10-11
Anticipated expiration: 2041-04-02
Also published as: CN115174316B

Abstract

The application discloses a channel estimation method and a device, which are applied to network equipment, wherein the method comprises the following steps: receiving demodulation reference signals DMR sent by terminal equipment on N uplink channels; and performing joint channel estimation according to the DMRSs transmitted on M uplink channels in the N uplink channels, wherein M and N are positive integers. The technical scheme is favorable for improving the accuracy of channel estimation.

Description

Translated fromChinese

一种信道估计方法及装置A channel estimation method and device

技术领域technical field

本申请涉及通信技术领域，尤其涉及一种信道估计方法及装置。The present application relates to the field of communication technologies, and in particular, to a channel estimation method and apparatus.

背景技术Background technique

在5G新无线(New Radio，NR)中，网络设备可以根据终端设备发送的物理上行共享信道(Physical Uplink Shared Channel，PUSCH)或物理上行控制信道(Physical UplinkControl Channel，PUCCH)对应的解调参考信号(Demodulation Reference Signal，DMRS)进行信道估计。信道估计是后续的信号解调的基础，信道估计的质量可以影响信号解调，进而影响通信系统的质量。In 5G new radio (New Radio, NR), the network device can be based on the physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) or physical uplink control channel (Physical Uplink Control Channel, PUCCH) corresponding to the demodulation reference signal sent by the terminal device (Demodulation Reference Signal, DMRS) for channel estimation. Channel estimation is the basis for subsequent signal demodulation, and the quality of the channel estimation can affect the signal demodulation, which in turn affects the quality of the communication system.

目前，对于一个发送接收点(Transmission and Reception Point，TRP)，网络设备可以对该TRP上的每个PUSCH或PUCCH对应的DMRS逐一进行信道估计。覆盖增强的研究中引入一个时间窗(TimeDomainWindow)的概念，在这个时间窗内的PUSCH可以联合进行信道估计，进而提升覆盖性能。但是，多个TRP传输场景下时间窗的应用方法目前还没有研究。Currently, for a transmission and reception point (Transmission and Reception Point, TRP), the network device can perform channel estimation one by one for the DMRS corresponding to each PUSCH or PUCCH on the TRP. The concept of a time window (TimeDomainWindow) is introduced in the research of coverage enhancement, and the PUSCH in this time window can jointly perform channel estimation, thereby improving the coverage performance. However, the application method of time windows in multiple TRP transmission scenarios has not been studied yet.

发明内容SUMMARY OF THE INVENTION

本申请公开了一种信道估计方法及装置，可以提高信道估计的准确率。The present application discloses a channel estimation method and device, which can improve the accuracy of channel estimation.

第一方面，本申请实施例提供了一种信道估计方法及装置，应用于网络设备，其中，该方法包括：In a first aspect, the embodiments of the present application provide a channel estimation method and apparatus, which are applied to network equipment, wherein the method includes:

在时间窗内，接收终端设备在N个上行信道上发送的解调参考信号DMRS；Within the time window, receive the demodulation reference signal DMRS sent by the terminal equipment on the N uplink channels;

根据该N个上行信道中M个上行信道上发送的DMRS，进行联合信道估计，该M和N为正整数，该M个上行信道具有相同的空域相关信息。Joint channel estimation is performed according to the DMRS sent on the M uplink channels in the N uplink channels, where M and N are positive integers, and the M uplink channels have the same spatial domain related information.

在一实施方式中，M个上行信道中各个上行信道具有相同的以下一个或多个参数：In one embodiment, each of the M uplink channels has the same one or more of the following parameters:

传输功率(Transmission Power)；Transmission Power;

频域资源分配；frequency domain resource allocation;

DMRS天线端口；DMRS antenna port;

发送预编码矩阵指示(Transmitted Precoding Matrix Indicator，TPMI)；Transmitted Precoding Matrix Indicator (TPMI);

传输空间参数(Transmit Spatial Domain Parameters)；Transmit Spatial Domain Parameters;

时间提前量(Timing Advance，TA)；Timing Advance (TA);

同时，M个上行信道中任意两个相邻的上行信道之间的时间间隔小于预设时间间隔，或者，M个上行信道中的任意两个上行信道之间不存在下行信道，或者，M个上行信道在时间上连续。At the same time, the time interval between any two adjacent uplink channels in the M uplink channels is less than the preset time interval, or there is no downlink channel between any two uplink channels in the M uplink channels, or, the M uplink channels do not exist between any two uplink channels. Upstream channels are continuous in time.

在一实施方式中，N个上行信道是通过顺序映射SeqMapping映射到传输资源中的，且N个上行信道的类型为重复发送类型A或重复发送类型B。In one embodiment, the N uplink channels are mapped to the transmission resources through sequential mapping SeqMapping, and the types of the N uplink channels are repeat transmission type A or repeat transmission type B.

在一实施方式中，N个上行信道是通过顺序映射SeqMapping映射到传输资源中的，且发送N个上行信道的类型为重复发送类型A，M个上行信道中的各个上行信道对应的时隙在时间上连续；或者，In one embodiment, the N uplink channels are mapped to transmission resources through sequential mapping SeqMapping, and the type of transmitting the N uplink channels is repeated transmission type A, and the time slot corresponding to each uplink channel in the M uplink channels is continuous in time; or,

N个上行信道是通过顺序映射SeqMapping映射到传输资源中的，且发送N个上行信道的类型为重复发送类型B，M个上行信道中的各个上行信道在时间上连续。The N uplink channels are mapped to the transmission resources through sequential mapping SeqMapping, the type of sending the N uplink channels is repeated transmission type B, and each of the M uplink channels is consecutive in time.

在一实施方式中，N个上行信道是通过循环映射CycMapping映射到传输资源中的，且发送N个上行信道的类型为重复发送类型A或重复发送类型B。In an embodiment, the N uplink channels are mapped to the transmission resources through CycMapping, and the type of sending the N uplink channels is the repeated transmission type A or the repeated transmission type B.

在一实施方式中，N个上行信道的类型为上行信道传输不同传输块的类型。In one embodiment, the types of the N uplink channels are the types in which the uplink channels transmit different transport blocks.

在一实施方式中，N个上行信道为物理上行共享信道PUSCH或物理上行控制信道PUCCH。In one embodiment, the N uplink channels are physical uplink shared channel PUSCH or physical uplink control channel PUCCH.

第二方面，本申请实施例提供了一种信道估计装置，应用于网络设备，该装置包括：In a second aspect, an embodiment of the present application provides a channel estimation apparatus, which is applied to network equipment, and the apparatus includes:

收发单元，用于在时间窗内，接收终端设备在N个上行信道上发送的解调参考信号DMRS；a transceiver unit, configured to receive the demodulation reference signal DMRS sent by the terminal equipment on the N uplink channels within the time window;

处理单元，用于根据该N个上行信道中M个上行信道上发送的DMRS，进行联合信道估计，该M和N为正整数，该M个上行信道具有相同的空域相关信息。The processing unit is configured to perform joint channel estimation according to the DMRS sent on the M uplink channels in the N uplink channels, where M and N are positive integers, and the M uplink channels have the same spatial domain related information.

第三方面，本申请实施例提供了一种信道估计装置，该装置包括处理器、存储器，存储器用于存储计算机程序，计算机程序包括程序指令，处理器被配置用于调用该程序指令，执行如第一方面描述的信道估计方法。In a third aspect, an embodiment of the present application provides a channel estimation device, the device includes a processor and a memory, the memory is used for storing a computer program, the computer program includes program instructions, and the processor is configured to call the program instructions, and execute the program instructions such as The channel estimation method described in the first aspect.

第四方面，本申请实施例提供了一种计算机可读存储介质，计算机可读存储介质存储有一条或多条指令，一条或多条指令适于由处理器加载并执行如第一方面描述的信道估计方法。In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, where the computer-readable storage medium stores one or more instructions, and the one or more instructions are suitable for being loaded and executed by a processor as described in the first aspect Channel estimation method.

第五方面，本申请实施例提供了一种芯片，该芯片包括处理器与数据接口，处理器通过所述数据接口读取存储器上存储的指令，以执行如第一方面描述的信道估计方法。In a fifth aspect, an embodiment of the present application provides a chip, the chip includes a processor and a data interface, and the processor reads an instruction stored in a memory through the data interface to execute the channel estimation method described in the first aspect.

第六方面，本申请实施例提供了一种芯片模组，该芯片模组包括芯片和收发器，该芯片模组应用于网络设备，其中：In a sixth aspect, an embodiment of the present application provides a chip module, the chip module includes a chip and a transceiver, and the chip module is applied to network equipment, wherein:

该芯片用于控制收发器在时间窗内，接收终端设备在N个上行信道上发送的解调参考信号DMRS；The chip is used to control the transceiver to receive the demodulation reference signal DMRS sent by the terminal equipment on the N uplink channels within the time window;

该芯片还用于根据该N个上行信道中M个上行信道上发送的DMRS，进行联合信道估计，该M和N为正整数，该M个上行信道具有相同的空域相关信息。The chip is further configured to perform joint channel estimation according to the DMRS sent on the M uplink channels in the N uplink channels, where M and N are positive integers, and the M uplink channels have the same spatial domain related information.

本申请实施例中，网络设备可以接收终端设备在N个上行信道上发送的解调参考信号DMR；根据该N个上行信道中M个上行信道上发送的DMRS，进行联合信道估计，该M和N为正整数。通过该方法，可以提高信道估计的准确率。In the embodiment of the present application, the network device may receive the demodulation reference signal DMR sent by the terminal device on the N uplink channels; perform joint channel estimation according to the DMRS sent on the M uplink channels in the N uplink channels, and the M and N is a positive integer. Through this method, the accuracy of channel estimation can be improved.

附图说明Description of drawings

为了更清楚地说明本申请实施例技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to explain the technical solutions of the embodiments of the present application more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. For those of ordinary skill, other drawings can also be obtained from these drawings without any creative effort.

图1为本申请实施例提供的一种通过顺序映射和重复发送类型A发送上行信道的示意图；1 is a schematic diagram of sending an uplink channel through sequential mapping and repeated sending of type A according to an embodiment of the present application;

图2为本申请实施例提供的一种通过循环映射和重复发送类型A发送上行信道的示意图；FIG. 2 is a schematic diagram of sending an uplink channel by cyclic mapping and repeated sending of type A according to an embodiment of the present application;

图3为本申请实施例提供的一种通过重复发送类型B发送上行信道的示意图；3 is a schematic diagram of sending an uplink channel by repeatedly sending type B according to an embodiment of the present application;

图4为本申请实施例提供的一种通信网络架构的示意图；FIG. 4 is a schematic diagram of a communication network architecture provided by an embodiment of the present application;

图5为本申请实施例提供的一种信道估计方法的流程示意图；FIG. 5 is a schematic flowchart of a channel estimation method provided by an embodiment of the present application;

图6为本申请实施例提供的一种Time Window内PUSCH的发送情况示意图；6 is a schematic diagram of the sending situation of PUSCH in a Time Window provided by an embodiment of the present application;

图7为本申请实施例提供的一种信道估计装置的单元示意图；FIG. 7 is a schematic diagram of units of a channel estimation apparatus provided by an embodiment of the present application;

图8为本申请实施例提供的一种信道估计装置的实体结构简化示意图；FIG. 8 is a simplified schematic diagram of the physical structure of a channel estimation apparatus provided by an embodiment of the present application;

图9为本申请实施例提供的一种信道估计装置的芯片简化示意图；FIG. 9 is a simplified schematic diagram of a chip of a channel estimation apparatus provided by an embodiment of the present application;

图10为本申请实施例提供的一种芯片模组的简化示意图。FIG. 10 is a simplified schematic diagram of a chip module provided by an embodiment of the present application.

具体实施方式Detailed ways

这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本申请相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本申请的一些方面相一致的装置和方法的例子。Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. Where the following description refers to the drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the illustrative examples below are not intended to represent all implementations consistent with this application. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present application as recited in the appended claims.

需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素，此外，本申请不同实施例中具有同样命名的部件、特征、要素可能具有相同含义，也可能具有不同含义，其具体含义需以其在该具体实施例中的解释或者进一步结合该具体实施例中上下文进行确定。It should be noted that, herein, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements, It also includes other elements not expressly listed or inherent to such a process, method, article or apparatus. Without further limitation, an element defined by the phrase "comprises a..." does not preclude the presence of additional identical elements in the process, method, article, or device that includes the element, and further, different implementations of the present application Components, features and elements with the same names in the examples may have the same meaning or may have different meanings, and their specific meanings need to be determined by their explanations in this specific embodiment or further combined with the context in this specific embodiment.

应当理解，尽管在本文可能采用术语第一、第二、第三等来描述各种信息，但这些信息不应限于这些术语。这些术语仅用来将同一类型的信息彼此区分开。例如，在不脱离本文范围的情况下，第一信息也可以被称为第二信息，类似地，第二信息也可以被称为第一信息。取决于语境，如在此所使用的词语"如果"可以被解释成为"在……时"或"当……时"或"响应于确定"。再者，如同在本文中所使用的，单数形式“一”、“一个”和“该”旨在也包括复数形式，除非上下文中有相反的指示。应当进一步理解，术语“包含”、“包括”表明存在所述的特征、步骤、操作、元件、组件、项目、种类、和/或组，但不排除一个或多个其他特征、步骤、操作、元件、组件、项目、种类、和/或组的存在、出现或添加。此处使用的术语“或”和“和/或”被解释为包括性的，或意味着任一个或任何组合。因此，“A、B或C”或者“A、B和/或C”意味着“以下任一个：A；B；C；A和B；A和C；B和C；A、B和C”。仅当元件、功能、步骤或操作的组合在某些方式下内在地互相排斥时，才会出现该定义的例外。It should be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited by these terms. These terms are only used to distinguish the same type of information from each other. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of this document. The word "if" as used herein can be interpreted as "at the time of" or "when" or "in response to determining", depending on the context. Also, as used herein, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context dictates otherwise. It should be further understood that the terms "comprising", "comprising" indicate the presence of stated features, steps, operations, elements, components, items, kinds, and/or groups, but do not exclude one or more other features, steps, operations, The existence, appearance or addition of elements, assemblies, items, categories, and/or groups. The terms "or" and "and/or" as used herein are to be construed to be inclusive or to mean any one or any combination. Thus, "A, B or C" or "A, B and/or C" means "any of the following: A; B; C; A and B; A and C; B and C; A, B and C" . Exceptions to this definition arise only when combinations of elements, functions, steps, or operations are inherently mutually exclusive in some way.

应该理解的是，虽然本申请实施例中的流程图中的各个步骤按照箭头的指示依次显示，但是这些步骤并不是必然按照箭头指示的顺序依次执行。除非本文中有明确的说明，这些步骤的执行并没有严格的顺序限制，其可以以其他的顺序执行。而且，图中的至少一部分步骤可以包括多个子步骤或者多个阶段，这些子步骤或者阶段并不必然是在同一时刻执行完成，而是可以在不同的时刻执行，其执行顺序也不必然是依次进行，而是可以与其他步骤或者其他步骤的子步骤或者阶段的至少一部分轮流或者交替地执行。It should be understood that, although the steps in the flowcharts in the embodiments of the present application are displayed in sequence according to the arrows, these steps are not necessarily executed in the sequence indicated by the arrows. Unless explicitly stated herein, the execution of these steps is not strictly limited to the order and may be performed in other orders. Moreover, at least a part of the steps in the figure may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily executed at the same time, but may be executed at different times, and the execution order is not necessarily sequential. Instead, it may be performed in turn or alternately with other steps or at least a portion of sub-steps or stages of other steps.

需要说明的是，在本文中，采用了诸如110、120等步骤代号，其目的是为了更清楚简要地表述相应内容，不构成顺序上的实质性限制，本领域技术人员在具体实施时，可能会先执行120后执行110等，但这些均应在本申请的保护范围之内。It should be noted that, in this article, step codes such as 110 and 120 are used for the purpose of expressing the corresponding content more clearly and briefly, and do not constitute a substantial limitation on the sequence. Those skilled in the art may 120 will be executed first and then 110, etc., but these should all fall within the protection scope of this application.

在后续的描述中，使用用于表示元件的诸如“模块”、“部件”或“单元”的后缀仅为了有利于本申请的说明，其本身没有特定的意义。因此，“模块”、“部件”或“单元”可以混合地使用。In the following description, suffixes such as 'module', 'component' or 'unit' used to represent elements are used only to facilitate the description of the present application, and have no specific meaning per se. Thus, "module", "component" or "unit" may be used interchangeably.

为了能够更好地理解本申请实施例，下面对本申请实施例涉及的专业术语进行介绍：In order to better understand the embodiments of the present application, the technical terms involved in the embodiments of the present application are introduced below:

解调参考信号(Demodulation Reference Signal，DMRS)是用于对物理上行共享信道(Physical Uplink Shared Channel，PUSCH)和物理上行控制信道(Physical UplinkControl Channel，PUCCH)的相关解调的信号。其中，每个PUSCH或PUCCH都具有对应的DMRS。A demodulation reference signal (Demodulation Reference Signal, DMRS) is a signal used for relative demodulation of a physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) and a physical uplink control channel (Physical Uplink Control Channel, PUCCH). Wherein, each PUSCH or PUCCH has a corresponding DMRS.

信道估计(Channel Estimation)是从接收数据中将假定的某个信道模型的模型参数估计出来的过程。具体地，网络设备可以根据PUSCH或PUCCH的DMRS估计出的信道分别对PUSCH或PUCCH进行信道估计。可以理解的是，DMRS既可以用于信道估计，又可以用于信号解调。Channel estimation is a process of estimating the model parameters of an assumed channel model from the received data. Specifically, the network device may perform channel estimation on the PUSCH or the PUCCH according to the channel estimated by the DMRS of the PUSCH or the PUCCH, respectively. It can be understood that the DMRS can be used for both channel estimation and signal demodulation.

时间窗(Time Window)是以时隙(Slot)或符号(Symbol)为单位的窗口，在该时间窗内，设备可以根据一个或者多个PUSCH的DMRS进行联合信道估计。或者，在该时间窗内，设备可以根据一个或者多个PUCCH的DMRS进行联合信道估计。The time window (Time Window) is a window in the unit of time slot (Slot) or symbol (Symbol), within this time window, the device can perform joint channel estimation according to the DMRS of one or more PUSCHs. Alternatively, within this time window, the device may perform joint channel estimation according to the DMRS of one or more PUCCHs.

发送接收点(Transmission and Reception Point，TRP)位于网络侧。示例性的，TRP是个逻辑概念。例如，1个TRP可以是一个实体网络站点，如：射频拉远头(Remote RadioHead，RRH)、基站等。再例如，1个TRP也可以是由多个实体网络站点构成的。在本申请实施例中，终端设备可以向TRP发送上行信道，且终端设备向不同的TRP发送的上行信道不相同。其中，在本申请实施例中，终端设备发送上行信道，可以理解为：终端设备在上行信道上发送信息、数据或信号(如DMRS)等；或者，终端设备通过上行信道发送信息、数据或信号等。例如，终端设备向网络设备或TRP发送上行信道，可以理解为：终端设备在上行信道上向网络设备或TRP发送信息、数据或信号等。The Transmission and Reception Point (TRP) is located on the network side. Illustratively, TRP is a logical concept. For example, one TRP may be a physical network site, such as: a remote radio head (Remote RadioHead, RRH), a base station, and the like. For another example, one TRP may also be composed of multiple physical network sites. In this embodiment of the present application, a terminal device may send an uplink channel to a TRP, and the uplink channels sent by the terminal device to different TRPs are different. Wherein, in the embodiment of the present application, the terminal equipment sends the uplink channel, which can be understood as: the terminal equipment sends information, data or signals (such as DMRS) on the uplink channel; or, the terminal equipment sends information, data or signals through the uplink channel Wait. For example, when the terminal device sends the uplink channel to the network device or TRP, it can be understood that the terminal device sends information, data or signals to the network device or TRP on the uplink channel.

重复发送类型A(Repetition Type A)是一种重复发送的方式，终端设备可以在若干个连续的时隙中，每个时隙都发送一次上行信道，并且可以对一个上行信道进行多次发送。也就是说，对于通过重复发送类型A发送上行信道，一个时隙中包括一个上行信道，一个上行信道可以占用一个或多个符号。Repetition Type A (Repetition Type A) is a way of repeating transmission. The terminal device can send the uplink channel once in each time slot in several consecutive time slots, and can send the uplink channel multiple times. That is to say, for sending the uplink channel through repeated transmission type A, one time slot includes one uplink channel, and one uplink channel may occupy one or more symbols.

顺序映射(SeqMapping)：终端设备如果采用顺序映射向第一TRP和第二TRP发送上行信道，终端设备可以先向第一TRP重复发送上行信道结束后，再向第二TRP重复发送上行信道。然后，在接下来的发送中重复这样的发送过程。如图1所示为一种通过顺序映射和重复发送类型A发送上行信道的示意图。图1中，终端设备在时隙n和时隙n+1内向第一TRP发送PUSCH11和PUSCH12，在时隙n+2和n+3向第二TRP发送PUSCH21和PUSCH22，这种发送方法就是顺序映射。其中，PUSCH11、PUSCH12、PUSCH21和PUSCH22是发送相同传输块的上行信道。Sequential mapping (SeqMapping): If the terminal device sends the uplink channel to the first TRP and the second TRP by using the sequential mapping, the terminal device can firstly send the uplink channel to the first TRP repeatedly, and then send the uplink channel to the second TRP repeatedly. Then, such a transmission process is repeated in the next transmission. FIG. 1 is a schematic diagram of sending an uplink channel through sequential mapping and repeated sending of type A. In Figure 1, the terminal device sends PUSCH11 and PUSCH12 to the first TRP in time slot n and time slot n+1, and sends PUSCH21 and PUSCH22 to the second TRP in time slot n+2 and n+3. This sending method is sequential map. Among them, PUSCH11, PUSCH12, PUSCH21 and PUSCH22 are uplink channels that transmit the same transport block.

循环映射(CycMapping)：终端设备在向不同的TRP发送上行信道时，可以先发送第三TRP的上行信道，再发送第四TRP的上行信道，再发送第三TRP的上行信道，再发送第四TRP的上行信道，以此类推。例如，图2为一种通过循环映射和重复发送类型A发送上行信道的示意图。图2中，终端设备在时隙n+4向第三TRP发送PUSCH31，在时隙n+5向第四TRP发送PUSCH41，在时隙n+6向第三TRP发送PUSCH32，在时隙n+7向第四TRP发送PUSCH42。其中，PUSCH31、PUSCH32、PUSCH41和PUSCH42是发送相同传输块的上行信道。CycMapping: When the terminal device sends the uplink channel to different TRPs, it can first send the uplink channel of the third TRP, then the uplink channel of the fourth TRP, then the uplink channel of the third TRP, and then the fourth TRP. Upstream channel of TRP, and so on. For example, FIG. 2 is a schematic diagram of sending an uplink channel through cyclic mapping and repeated sending of type A. In Figure 2, the terminal device sends PUSCH31 to the third TRP in time slot n+4, sends PUSCH41 to the fourth TRP in time slot n+5, sends PUSCH32 to the third TRP in time slot n+6, and sends PUSCH32 to the third TRP in time slot n+ 7 Send PUSCH 42 to the fourth TRP. Among them, PUSCH31, PUSCH32, PUSCH41 and PUSCH42 are uplink channels that transmit the same transport block.

重复发送类型B(Repetition Type B)是另一种重复发送的方式，终端设备可以在一个时隙内发送一个及一个以上的上行信道，并且这些上行信道在时间上是连续的。例如，如图3所示为一种通过重复发送类型B发送上行信道的示意图，终端设备可以在一个时隙中的符号0～符号3重复发送第五TRP对应的PUSCH，在符号4～符号7重复发送第六TRP对应的PUSCH等。可以理解的是，对于重复发送类型A，一个时隙中可以承载一个上行信道；对于重复发送类型B，一个时隙中可以承载一个或多个上行信道，并且这些上行信道在时间上是连续的。Repetition Type B (Repetition Type B) is another way of repeating transmission. A terminal device can transmit one or more uplink channels in one time slot, and these uplink channels are continuous in time. For example, as shown in FIG. 3 is a schematic diagram of sending an uplink channel by repeatedly sending type B, the terminal device can repeatedly send the PUSCH corresponding to the fifth TRP in symbols 0 to 3 in a time slot, and the PUSCH corresponding to the fifth TRP in symbols 4 to 7 in a time slot The PUSCH corresponding to the sixth TRP is repeatedly sent. It can be understood that, for repeated transmission type A, one time slot can carry one uplink channel; for repeated transmission type B, one time slot can carry one or more uplink channels, and these uplink channels are consecutive in time. .

需要说明的是，通过重复发送类型B发送的上行信道，也可以通过SeqMapping或CycMapping映射到传输资源中，其方法与通过重复发送类型A发送的上行信道映射到传输资源中的方法类似，此处不做赘述。而终端设备在发送上行信道时，确定采用SeqMapping或CycMapping来将上行信道映射到传输资源，可以是根据网络设备发送的无线资源控制(Radio Resource Control，RRC)信令来确定的。It should be noted that the uplink channel sent by repeatedly sending type B can also be mapped to transmission resources through SeqMapping or CycMapping. The method is similar to the method of mapping the uplink channel sent by repeatedly sending type A to transmission resources. I won't go into details. When the terminal device transmits the uplink channel, determining to use SeqMapping or CycMapping to map the uplink channel to the transmission resource may be determined according to Radio Resource Control (RRC) signaling sent by the network device.

为了能够更好地理解本申请实施例，下面对本申请实施例可应用的网络架构进行说明。In order to better understand the embodiments of the present application, a network architecture applicable to the embodiments of the present application is described below.

请参见图4，图4为本申请实施例提供的一种通信网络架构的示意图。如图4所示，该通信网络架构包括终端设备和网络设备。其中，网络设备上分布有TRP1和TRP2，终端设备与网络设备之间部署有上行信道，上行信道可以包括PUSCH和PUCCH等。终端设备可以通过上行信道向网络设备发送信息、数据等，例如终端设备可以通过PUSCH向网络设备发送上行数据，可以通过PUCCH向网络设备发送控制信息等。Please refer to FIG. 4 , which is a schematic diagram of a communication network architecture provided by an embodiment of the present application. As shown in FIG. 4 , the communication network architecture includes terminal equipment and network equipment. Among them, TRP1 and TRP2 are distributed on the network device, and an uplink channel is deployed between the terminal device and the network device, and the uplink channel may include PUSCH and PUCCH. The terminal device can send information, data, etc. to the network device through the uplink channel. For example, the terminal device can send uplink data to the network device through the PUSCH, and can send control information to the network device through the PUCCH.

需要说明的是，终端设备具体可以向各个TRP发送对应不同传输块的上行信道。It should be noted that the terminal device may specifically send uplink channels corresponding to different transport blocks to each TRP.

需要说明的是，本发明技术方案可适用于第5代移动通信(5th Generation，5G)通信系统，还可适用于4G、3G通信系统，还可适用于未来新的各种通信系统，例如6G、7G、车内短距离通信系统等。本发明技术方案也适用于不同的网络架构，包括但不限于中继网络架构、双链接架构、车辆到任何物体的通信(Vehicle-to-Everything)架构、车内短距离通信架构等架构。It should be noted that the technical solution of the present invention can be applied to the 5th Generation (5G) communication system, 4G and 3G communication systems, and various new communication systems in the future, such as 6G , 7G, in-vehicle short-range communication systems, etc. The technical solution of the present invention is also applicable to different network architectures, including but not limited to relay network architecture, dual link architecture, vehicle-to-everything (Vehicle-to-Everything) architecture, in-vehicle short-distance communication architecture and other architectures.

本申请实施例中所述核心网可以是演进型分组核心网(evolved packet core，简称EPC)、5G Core Network(5G核心网)，还可以是未来通信系统中的新型核心网。5G CoreNetwork由一组设备组成，并实现移动性管理等功能的接入和移动性管理功能(Access andMobility Management Function，AMF)、提供数据包路由转发和QoS(Quality of Service)管理等功能的用户面功能(User Plane Function,UPF)、提供会话管理、IP地址分配和管理等功能的会话管理功能(Session Management Function，SMF)等。EPC可由提供移动性管理、网关选择等功能的MME、提供数据包转发等功能的Serving Gateway(S-GW)、提供终端地址分配、速率控制等功能的PDN Gateway(P-GW)组成。The core network described in the embodiments of the present application may be an evolved packet core (evolved packet core, EPC for short), a 5G Core Network (5G core network), and may also be a new type of core network in a future communication system. The 5G CoreNetwork is composed of a set of devices, and implements the Access and Mobility Management Function (AMF) for functions such as mobility management, and the user plane that provides functions such as packet routing and forwarding and QoS (Quality of Service) management. Function (User Plane Function, UPF), session management function (Session Management Function, SMF) that provides functions such as session management, IP address allocation and management, etc. EPC consists of MME that provides functions such as mobility management and gateway selection, Serving Gateway (S-GW) that provides functions such as packet forwarding, and PDN Gateway (P-GW) that provides functions such as terminal address allocation and rate control.

本申请实施例中所涉及的网络设备，是网络侧的一种用于发射或接收信号的实体，可以用于将收到的空中帧与网络协议(Internet Protocol，IP)分组进行相互转换，作为终端设备与接入网的其余部分之间的路由器，其中接入网的其余部分可以包括IP网络等。网络设备还可以协调对空中接口的属性管理。例如，网络设备可以是LTE中的eNB，还可以是新无线控制器(New Radio Controller，NR controller)，可以是5G系统中的gNB，可以是集中式网元(Centralized Unit)，可以是新无线基站，可以是射频拉远模块，可以是微基站，可以是中继(Relay)，可以是分布式网元(Distributed Unit)，可以是接收点(Transmission Reception Point，TRP)或传输点(Transmission Point，TP)，可以是车内短距离通信系统中的G节点或者任何其它无线接入设备，但本申请实施例不限于此。The network device involved in the embodiments of the present application is an entity on the network side that transmits or receives signals, and can be used to convert received air frames and Internet Protocol (Internet Protocol, IP) packets to each other, as A router between a terminal device and the rest of the access network, which may include an IP network and the like. The network device may also coordinate attribute management of the air interface. For example, the network device may be an eNB in LTE, a new radio controller (New Radio Controller, NR controller), a gNB in a 5G system, a centralized network element (Centralized Unit), or a new radio controller. The base station can be a remote radio module, a micro base station, a relay, a distributed unit, a reception point (Transmission Reception Point, TRP) or a transmission point (Transmission Point). , TP), which may be a G node or any other wireless access device in the in-vehicle short-range communication system, but the embodiment of the present application is not limited to this.

本申请实施例中的网络设备可以包括基站(base station，简称BS)，也可称为基站设备，是一种部署在无线接入网(RAN)用以提供无线通信功能的装置。例如在2G网络中提供基站功能的设备包括基地无线收发站(Base Transceiver Station,简称BTS)，3G网络中提供基站功能的设备包括节点B(NodeB)，在4G网络中提供基站功能的设备包括演进的节点B(evolved NodeB，eNB)，在无线局域网络(Wireless Local Area Networks，简称WLAN)中，提供基站功能的设备为接入点(Access Point，简称AP)，5G新无线(New Radio，简称NR)中的提供基站功能的设备gNB,以及继续演进的节点B(ng-eNB),其中gNB和终端之间采用NR技术进行通信，ng-eNB和终端之间采用E-UTRA(Evolved Universal Terrestrial RadioAccess)技术进行通信，gNB和ng-eNB均可连接到5G核心网。本申请实施例中的基站还包含在未来新的通信系统中提供基站功能的设备等。The network equipment in the embodiments of the present application may include a base station (base station, BS for short), which may also be referred to as base station equipment, which is a device deployed in a radio access network (RAN) to provide a wireless communication function. For example, devices that provide base station functions in 2G networks include Base Transceiver Stations (BTS for short), devices that provide base station functions in 3G networks include Node Bs (NodeBs), and devices that provide base station functions in 4G networks include evolved The Node B (evolved NodeB, eNB) of the 5G wireless local area network (Wireless Local Area Networks, referred to as WLAN), the device that provides the base station function is the Access Point (Access Point, referred to as AP), 5G New Radio (New Radio, referred to as WLAN) The device gNB that provides base station functions in NR), and the node B (ng-eNB) that continues to evolve, wherein the gNB and the terminal use NR technology to communicate, and the ng-eNB and the terminal use E-UTRA (Evolved Universal Terrestrial). RadioAccess) technology to communicate, both gNB and ng-eNB can be connected to the 5G core network. The base station in the embodiment of the present application also includes a device that provides a base station function in a new communication system in the future, and the like.

本申请实施例中涉及的终端设备，是用户侧的一种用于接收或发射信号的实体。终端设备可以是一种向用户提供语音和/或数据连通性的设备，例如，具有无线连接功能的手持式设备、车载设备等。终端设备也可以是连接到无线调制解调器的其他处理设备。终端设备可以与无线接入网(Radio Access Network，RAN)进行通信。终端设备也可以称为无线终端、订户单元(Subscriber Unit)、订户站(Subscriber Station)，移动站(MobileStation)、移动台(Mobile)、远程站(Remote Station)、接入点(Access Point)、远程终端(Remote Terminal)、接入终端(Access Terminal)、用户终端(User Terminal)、用户代理(User Agent)、用户设备(User Device)、或用户设备(User Equipment，UE)等等。终端设备可以是移动终端，如移动电话(或称为“蜂窝”电话)和具有移动终端的计算机，例如，可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置，它们与无线接入网交换语言和/或数据。例如，终端设备还可以是个人通信业务(Personal Communication Service，PCS)电话、无绳电话、会话发起协议(Session Initiation Protocol，SIP)话机、无线本地环路(Wireless Local Loop，WLL)站、个人数字助理(Personal Digital Assistant，PDA)、等设备。常见的终端设备例如包括：手机、平板电脑、笔记本电脑、掌上电脑、移动互联网设备(Mobile Internet Device，MID)、车辆、路边设备、飞行器、T节点、可穿戴设备，例如智能手表、智能手环、计步器等，但本申请实施例不限于此。以下对本申请所提供的通信方法及相关设备进行详细地介绍。The terminal equipment involved in the embodiments of this application is an entity on the user side that is used to receive or transmit signals. A terminal device may be a device that provides voice and/or data connectivity to a user, eg, a handheld device with a wireless connection function, a vehicle-mounted device, and the like. The terminal device may also be other processing device connected to the wireless modem. The terminal equipment can communicate with a radio access network (Radio Access Network, RAN). A terminal device may also be called a wireless terminal, a Subscriber Unit, a Subscriber Station, a Mobile Station, a Mobile Station, a Remote Station, an Access Point, Remote Terminal (Remote Terminal), Access Terminal (Access Terminal), User Terminal (User Terminal), User Agent (User Agent), User Device (User Device), or User Equipment (User Equipment, UE) and so on. Terminal devices may be mobile terminals, such as mobile phones (or "cellular" phones) and computers with mobile terminals, for example, may be portable, pocket-sized, hand-held, computer-built, or vehicle-mounted mobile devices, which are associated with wireless The access network exchanges language and/or data. For example, the terminal device may also be a Personal Communication Service (PCS) phone, a cordless phone, a Session Initiation Protocol (Session Initiation Protocol, SIP) phone, a Wireless Local Loop (WLL) station, a personal digital assistant (Personal Digital Assistant, PDA), etc. Common terminal devices include, for example, mobile phones, tablet computers, notebook computers, PDAs, Mobile Internet Devices (MIDs), vehicles, roadside equipment, aircraft, T-nodes, and wearable devices, such as smart watches and smart hands. Rings, pedometers, etc., but the embodiments of the present application are not limited thereto. The communication method and related devices provided by the present application will be introduced in detail below.

为了能够提高信道估计效率，本申请实施例提供了一种信道估计方法及装置，下面进一步对本申请实施例提供的信道估计方法及装置进行详细介绍。In order to improve the efficiency of channel estimation, the embodiments of the present application provide a channel estimation method and apparatus, and the channel estimation method and apparatus provided by the embodiments of the present application are further described below in detail.

请参见图5，图5为本申请实施例提供了一种信道估计方法的流程示意图。该信道估计方法包括如下步骤510～步骤520。图5所示的方法执行主体可以为网络设备中的TRP1，或为该TRP1中的芯片，其中，该TRP1可以是网络设备中的任一个TRP。当TRP1执行如图5所示的流程时，可以包括以下步骤：Referring to FIG. 5, FIG. 5 provides a schematic flowchart of a channel estimation method according to an embodiment of the present application. The channel estimation method includes the followingsteps 510 to 520 . The method execution body shown in FIG. 5 may be a TRP1 in a network device, or a chip in the TRP1, where the TRP1 may be any TRP in the network device. When TRP1 executes the process shown in Figure 5, it can include the following steps:

510、网络设备在时间窗内，接收终端设备在N个上行信道上发送的解调参考信号DMRS。510. Within the time window, the network device receives the demodulation reference signal DMRS sent by the terminal device on the N uplink channels.

终端设备向网络设备发送上行信道可以是网络设备中的任意一个TRP通过DCI调度的。可以理解的是，网络设备中的一个TRP可以调度终端设备向该TRP发送上行信道，也可以调度终端设备向另外的一个或多个TRP发送上行信道。例如，TRP1可以调度终端设备向TRP1发送上行信道，也可以调度终端设备向TRP2发送上行信道。The uplink channel sent by the terminal device to the network device may be scheduled by any TRP in the network device through DCI. It can be understood that one TRP in the network device may schedule the terminal device to send the uplink channel to the TRP, and may also schedule the terminal device to send the uplink channel to one or more other TRPs. For example, TRP1 may schedule the terminal device to send the uplink channel to TRP1, and may also schedule the terminal device to send the uplink channel to TRP2.

在本步骤中，时间窗(Time Window)可以是网络设备通过高层信令或者DCI指示的，或者通过预定义或者隐式指示的方式确定。例如，TimeWindow可以由上行调度中指示的PUSCH的重传次数和或PUSCH的时间长度确定。In this step, the time window (Time Window) may be indicated by the network device through high-layer signaling or DCI, or determined by means of a predefined or implicit indication. For example, the TimeWindow may be determined by the number of retransmissions of the PUSCH or the time length of the PUSCH indicated in the uplink scheduling.

在重复发送类型A或者重复发送类型B的情况下，Timewindow内传输的是包括相同传输块的多个上行信道。In the case of repeated transmission type A or repeated transmission type B, multiple uplink channels including the same transport block are transmitted within the Timewindow.

520、网络设备根据该N个上行信道中M个上行信道上发送的DMRS，进行联合信道估计，该M和N为正整数。520. The network device performs joint channel estimation according to the DMRS sent on the M uplink channels in the N uplink channels, where M and N are positive integers.

其中，该M个上行信道具有相同的空域相关信息。该空域相关信息可以是spatialrelationinfo，网络设备根据spatialrelationinfo可以确定上行发送的空间滤波器参数。若该M个上行信道具有相同的空域相关信息，则说明该M个上行信道均属于发送给同一个TRP的上行信道。由于本申请实施例以TRP1为执行主体，则可认为该M个上行信道均属于TRP1，即该M个上行信道均为终端设备向TRP1发送的。TRP1可以对该M个上行信道所对应的DMRS进行联合信道估计。Wherein, the M uplink channels have the same spatial domain related information. The spatial relationship information may be spatialrelationinfo, and the network device may determine the spatial filter parameters for uplink transmission according to spatialrelationinfo. If the M uplink channels have the same spatial domain related information, it means that the M uplink channels all belong to the uplink channels sent to the same TRP. Since the embodiment of the present application takes TRP1 as the execution subject, it can be considered that the M uplink channels belong to TRP1, that is, the M uplink channels are all sent by the terminal device to TRP1. TRP1 can perform joint channel estimation on the DMRSs corresponding to the M uplink channels.

需要说明的是，TRP1可以对属于自己的M个上行信道进行联合信道估计，TRP2也可以对属于自己的若干个上行信道进行联合信道估计，因此本申请实施例的应用场景可以是多TRP(M-TRP)场景。It should be noted that TRP1 can perform joint channel estimation on M uplink channels belonging to itself, and TRP2 can also perform joint channel estimation on several uplink channels belonging to itself. Therefore, the application scenarios of the embodiments of the present application may be multi-TRP (M -TRP) scene.

具体地，TRP1可以获取该M个上行信道中每个上行信道分别对应DMRS，将所有获取到的DMRS进行结合，对该M个上行信道进行联合信道估计，而不是对该M个上行信道中的各个上行信道逐一进行信道估计。Specifically, TRP1 may acquire DMRSs corresponding to each of the M uplink channels, combine all the acquired DMRSs, and perform joint channel estimation on the M uplink channels, instead of performing a joint channel estimation on the M uplink channels. Channel estimation is performed for each uplink channel one by one.

在一种可能的实现方式中，该M个上行信道中的各个上行信道具有相同的以下一个或多个参数：传输功率、频域资源位置、DMRS天线端口(DMRS Antenna Ports)、发送预编码矩阵指示、传输空间参数和时间提前量等。该M个上行信道中的各个上行信道具有的相同的参数可以包括但不限于以上参数。In a possible implementation manner, each of the M uplink channels has the same one or more of the following parameters: transmission power, frequency domain resource location, DMRS antenna ports (DMRS Antenna Ports), transmission precoding matrix Indication, transmission space parameters and timing advance, etc. The same parameters of each of the M uplink channels may include but are not limited to the above parameters.

可选的，该M个上行信道中的任意两个相邻的上行信道之间的时间间隔小于预设时间间隔。该预设时间间隔可以是终端设备或接入网设备配置的，也可以是协议规定的。该预设时间间隔可以以时隙、符号等为单位，该预设时间间隔的取值可以大于或等于0。例如，该预设时间间隔为1个时隙，那么上述M个上行信道中的任意两个相邻的上行信道分别对应的时隙之间的间隔可以是0个时隙，也可以是1个时隙。Optionally, the time interval between any two adjacent uplink channels in the M uplink channels is less than a preset time interval. The preset time interval may be configured by the terminal device or the access network device, or may be specified by a protocol. The preset time interval may be in units of time slots, symbols, etc., and the value of the preset time interval may be greater than or equal to 0. For example, the preset time interval is 1 time slot, then the interval between the time slots corresponding to any two adjacent uplink channels in the above-mentioned M uplink channels may be 0 time slots or 1 time slot. time slot.

需要说明的是，该N个上行信道中，属于TRP1的上行信道的个数可以大于或等于M。而属于TRP1的多个上行信道中可能存在一个或多个第一上行信道，无法找到与该第一上行信道之间的时间间隔小于预设时间间隔的属于TRP1的上行信道。TRP1可以不将该一个或多个第一上行信道算入M个上行信道内。如图6所示为一种Time Window内PUSCH的发送情况示意图。图6中的Time Window中包括多个PUSCH，例如PUSCH1、PUSCH2、PUSCH3、PUSCH4和PUSCH5等。假定PUSCH1、PUSCH2和PUSCH5是属于TRP1的，PUSCH3和PUSCH4是属于TRP2的，且PUSCH5之后没有属于TRP1的PUSCH。若预设时间间隔为1个时隙，由于PUSCH1和PUSCH2之间的时间间隔为0个时隙，则TRP1可以将PUSCH1和PUSCH2算入M个上行信道内。而对于PUSCH5来说，与之最近的属于TRP1的PUSCH是PUSCH2，而PUSCH2与PUSCH5之间的时间间隔为2个时隙，大于预设时间间隔的1个时隙。因此，TRP1可以不将PUSCH5算入M个上行信道内。It should be noted that, among the N uplink channels, the number of uplink channels belonging to TRP1 may be greater than or equal to M. However, there may be one or more first uplink channels in the multiple uplink channels belonging to TRP1, and an uplink channel belonging to TRP1 whose time interval with the first uplink channel is smaller than the preset time interval cannot be found. TRP1 may not count the one or more first uplink channels into the M uplink channels. FIG. 6 is a schematic diagram of the sending situation of PUSCH in a Time Window. The Time Window in FIG. 6 includes multiple PUSCHs, such as PUSCH1, PUSCH2, PUSCH3, PUSCH4, and PUSCH5. It is assumed that PUSCH1, PUSCH2 and PUSCH5 belong to TRP1, PUSCH3 and PUSCH4 belong to TRP2, and there is no PUSCH belonging to TRP1 after PUSCH5. If the preset time interval is 1 timeslot, since the time interval between PUSCH1 and PUSCH2 is 0 timeslots, TRP1 can count PUSCH1 and PUSCH2 into the M uplink channels. For PUSCH5, the closest PUSCH belonging to TRP1 is PUSCH2, and the time interval between PUSCH2 and PUSCH5 is 2 time slots, which is greater than 1 time slot of the preset time interval. Therefore, TRP1 may not count PUSCH5 into the M uplink channels.

在一种可能的实现方式中，上述的N个上行信道是通过SeqMapping映射到传输资源中的，且发送该N个上行信道的类型为重复发送类型A或者重复发送类型B。也就是说，对于终端设备通过重复发送类型A或者重复发送类型B发送的，通过SeqMapping映射到传输资源中的N个上行信道，TRP1可以从该N个上行信道中获取到属于自己的M个上行信道，将该M个上行信道所对应的解调参考信号DMRS进行联合信道估计。In a possible implementation manner, the above-mentioned N uplink channels are mapped to transmission resources through SeqMapping, and the type of sending the N uplink channels is repeated transmission type A or repeated transmission type B. That is to say, for the N uplink channels sent by the terminal equipment through repeated transmission type A or repeated transmission type B, and mapped to the N uplink channels in the transmission resources through SeqMapping, TRP1 can obtain its own M uplink channels from the N uplink channels channel, and perform joint channel estimation on the demodulation reference signals DMRS corresponding to the M uplink channels.

在一种可能的实现方式中，上述的N个上行信道是通过SeqMapping映射到传输资源中的，且发送该N个上行信道的类型为重复发送类型A，该M个上行信道中的各个信道对应的时隙在时间上连续。这样，TRP1就可以将该M个上行信道所对应的解调参考信号DMRS进行联合信道估计。In a possible implementation manner, the above-mentioned N uplink channels are mapped to transmission resources through SeqMapping, and the type of sending the N uplink channels is repeated transmission type A, and each channel in the M uplink channels corresponds to The time slots are consecutive in time. In this way, TRP1 can perform joint channel estimation on the demodulation reference signals DMRS corresponding to the M uplink channels.

可选的，上述的N个上行信道是通过SeqMapping映射到传输资源中的，且发送该N个上行信道的类型为重复发送类型B，该M个上行信道中的各个信道在时间上连续。这样，TRP1也可以将该M个上行信道所对应的解调参考信号DMRS进行联合信道估计。Optionally, the above-mentioned N uplink channels are mapped to transmission resources through SeqMapping, the type of sending the N uplink channels is repeated transmission type B, and each channel in the M uplink channels is consecutive in time. In this way, TRP1 can also perform joint channel estimation on the demodulation reference signals DMRS corresponding to the M uplink channels.

在一种可能的实现方式中，上述的N个上行信道是通过CycMapping映射到传输资源中的，且发送该N个上行信道的类型为重复发送类型A或者重复发送类型B。这样，TRP1也可以将M个上行信道所对应的解调参考信号DMRS进行联合信道估计。In a possible implementation manner, the above-mentioned N uplink channels are mapped into transmission resources through CycMapping, and the type of sending the N uplink channels is repeated transmission type A or repeated transmission type B. In this way, TRP1 can also perform joint channel estimation on the demodulation reference signals DMRS corresponding to the M uplink channels.

在一种可能的实现方式中，上述的N个上行信道为上行信道传输不同传输块(Different TBs for PUSCH Transmission)的类型。这样，TRP1也可以将M个上行信道所对应的解调参考信号DMRS进行联合信道估计。In a possible implementation manner, the above-mentioned N uplink channels are types of uplink channels for transmitting different transport blocks (Different TBs for PUSCH Transmission). In this way, TRP1 can also perform joint channel estimation on the demodulation reference signals DMRS corresponding to the M uplink channels.

在一种可能的实现方式中，上述M个上行信道具有相同的空域相关信息，TRP1就可以将M个上行信道所对应的解调参考信号DMRS进行联合信道估计。In a possible implementation manner, the above-mentioned M uplink channels have the same spatial domain related information, and TRP1 can perform joint channel estimation on the demodulation reference signals DMRS corresponding to the M uplink channels.

在一种可能的实现方式中，本申请实施例的上行信道可以是PUSCH，也可以是PUCCH。In a possible implementation manner, the uplink channel in this embodiment of the present application may be a PUSCH or a PUCCH.

通过本申请实施例，网络设备中的TRP1可以在Time Window中，接收终端设备发送的N个上行信道。其中，该N个上行信道中可以包括重复发送的上行信道，也可以包括独立发送的上行信道，该TRP1可以是网络设备中的任意一个TRP。TRP1可以从该N个上行信道中确定出M个上行信道，该M个上行信道均是属于TRP1的，且满足联合信道估计的条件。TRP1可以对该M个上行信道进行联合信道估计。通过该方法，可以提高信道估计的效率以及准确率。Through the embodiments of the present application, the TRP1 in the network device can receive N uplink channels sent by the terminal device in the Time Window. Wherein, the N uplink channels may include uplink channels sent repeatedly, or may include uplink channels sent independently, and the TRP1 may be any TRP in the network device. TRP1 can determine M uplink channels from the N uplink channels, and the M uplink channels all belong to TRP1 and satisfy the condition of joint channel estimation. TRP1 can perform joint channel estimation on the M uplink channels. Through this method, the efficiency and accuracy of channel estimation can be improved.

请参见图7，图7为本申请实施例提供的一种信道估计装置的单元示意图。图7所示的信道估计装置可以用于执行上述图5所描述的方法实施例中的部分或全部功能。该装置可以是网络设备中的TRP，也可以是网络设备中的TRP中的装置，或者是能够和网络设备中的TRP匹配使用的装置。Please refer to FIG. 7, which is a schematic diagram of units of a channel estimation apparatus provided by an embodiment of the present application. The channel estimation apparatus shown in FIG. 7 may be used to perform some or all of the functions in the method embodiment described in FIG. 5 above. The device may be a TRP in the network device, or a device in the TRP in the network device, or a device that can be matched and used with the TRP in the network device.

该装置的逻辑结构可包括：收发单元710、和处理单元720，其中：The logical structure of the apparatus may include: atransceiver unit 710, and aprocessing unit 720, wherein:

收发单元710，用于在时间窗内，接收终端设备在N个上行信道上发送的解调参考信号DMRS；Atransceiver unit 710, configured to receive, within the time window, the demodulation reference signal DMRS sent by the terminal device on the N uplink channels;

处理单元720，用于根据该N个上行信道中M个上行信道上发送的DMRS，进行联合信道估计，该M和N为正整数。Theprocessing unit 720 is configured to perform joint channel estimation according to the DMRS sent on the M uplink channels in the N uplink channels, where M and N are positive integers.

在一种可能的实现方式中，M个上行信道中各个上行信道具有相同的以下一个或多个参数：In a possible implementation manner, each of the M uplink channels has the same one or more of the following parameters:

传输功率；transmission power;

频域资源分配；Frequency domain resource allocation;

DMRS天线端口；DMRS antenna port;

TPMI；TPMI;

传输空间参数；transmission space parameters;

时间提前量；time advance;

M个上行信道中任意两个相邻的上行信道之间的时间间隔小于预设时间间隔，或者，M个上行信道中的任意两个上行信道之间不存在下行信道，或者，M个上行信道在时间上连续。The time interval between any two adjacent uplink channels in the M uplink channels is less than the preset time interval, or there is no downlink channel between any two uplink channels in the M uplink channels, or, the M uplink channels continuous in time.

在一种可能的实现方式中，N个上行信道是通过顺序映射SeqMapping映射到传输资源中的，且N个上行信道的类型为重复发送类型A或重复发送类型B。In a possible implementation manner, the N uplink channels are mapped to the transmission resources through sequential mapping SeqMapping, and the type of the N uplink channels is repetitive transmission type A or repetitive transmission type B.

在一种可能的实现方式中，N个上行信道是通过顺序映射SeqMapping映射到传输资源中的，且发送N个上行信道的类型为重复发送类型A，M个上行信道中的各个上行信道对应的时隙在时间上连续；或者，In a possible implementation manner, the N uplink channels are mapped to the transmission resources through sequential mapping SeqMapping, and the type of sending the N uplink channels is repeated transmission type A, and each uplink channel in the M uplink channels corresponds to time slots are consecutive in time; or,

N个上行信道是通过顺序映射SeqMapping映射到传输资源中的，且发送N个上行信道的类型为重复发送类型B，M个上行信道中的各个上行信道是在连续的符号中发送的。The N uplink channels are mapped to transmission resources through sequential mapping SeqMapping, the type of sending the N uplink channels is repeated transmission type B, and each uplink channel in the M uplink channels is sent in consecutive symbols.

在一种可能的实现方式中，N个上行信道是通过循环映射CycMapping映射到传输资源中的，且发送N个上行信道的类型为重复发送类型A或重复发送类型B。In a possible implementation manner, the N uplink channels are mapped to the transmission resource through CycMapping, and the type of sending the N uplink channels is repeated transmission type A or repeated transmission type B.

在一种可能的实现方式中，N个上行信道的类型为上行信道传输不同传输块的类型。In a possible implementation manner, the types of the N uplink channels are the types in which the uplink channels transmit different transport blocks.

在一种可能的实现方式中，N个上行信道为物理上行共享信道PUSCH或物理上行控制信道PUCCH。In a possible implementation manner, the N uplink channels are physical uplink shared channel PUSCH or physical uplink control channel PUCCH.

请参见图8，图8为本申请实施例提供的一种信道估计装置的实体结构简化示意图，该装置包括处理器810、存储器820和通信接口830，该处理器810、存储器820以及通信接口830通过一条或多条通信总线连接。该信道估计装置可以是芯片、或芯片模组等。Please refer to FIG. 8. FIG. 8 is a simplified schematic diagram of the physical structure of a channel estimation apparatus provided by an embodiment of the present application. The apparatus includes aprocessor 810, amemory 820, and acommunication interface 830. Theprocessor 810, thememory 820, and thecommunication interface 830 Connected via one or more communication buses. The channel estimation device may be a chip, a chip module, or the like.

处理器810被配置为支持信道估计装置执行上述图5中方法相应的功能。应理解，本申请实施例中，所述处理器810可以为中央处理单元(central processing unit，简称CPU)，该处理器还可以是其他通用处理器、数字信号处理器(digital signal processor，简称DSP)、专用集成电路(application specific integrated circuit，简称ASIC)、现成可编程门阵列(field programmable gate array，简称FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。Theprocessor 810 is configured to support the channel estimation apparatus to perform functions corresponding to the method in FIG. 5 described above. It should be understood that, in this embodiment of the present application, theprocessor 810 may be a central processing unit (central processing unit, CPU for short), and the processor may also be other general-purpose processors, digital signal processors (digital signal processor, DSP for short) ), application specific integrated circuit (ASIC for short), field programmable gate array (FPGA for short) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

存储器820用于存储程序代码等。本申请实施例中的存储器820可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(read-only memory，简称ROM)、可编程只读存储器(programmable ROM，简称PROM)、可擦除可编程只读存储器(erasable PROM，简称EPROM)、电可擦除可编程只读存储器(electrically EPROM，简称EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory，简称RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的随机存取存储器(random access memory，简称RAM)可用，例如静态随机存取存储器(static RAM，简称SRAM)、动态随机存取存储器(DRAM)、同步动态随机存取存储器(synchronous DRAM，简称SDRAM)、双倍数据速率同步动态随机存取存储器(double datarate SDRAM，简称DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM，简称ESDRAM)、同步连接动态随机存取存储器(synchlink DRAM，简称SLDRAM)和直接内存总线随机存取存储器(direct rambus RAM，简称DR RAM)。Thememory 820 is used to store program codes and the like. Thememory 820 in this embodiment of the present application may be a volatile memory or a nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile memory may be a read-only memory (ROM for short), a programmable read-only memory (PROM for short), an erasable PROM for short (EPROM) , Electrically Erasable Programmable Read-Only Memory (electrically EPROM, EEPROM for short) or flash memory. Volatile memory may be random access memory (RAM for short), which acts as an external cache. By way of example and not limitation, many forms of random access memory (RAM) are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous Dynamic random access memory (synchronous DRAM, referred to as SDRAM), double data rate synchronous dynamic random access memory (double datarate SDRAM, referred to as DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, referred to as ESDRAM), synchronous A dynamic random access memory (synchlink DRAM, referred to as SLDRAM) and a direct memory bus random access memory (direct rambus RAM, referred to as DR RAM) are connected.

通信接口830用于收发数据、信息或消息等，也可以描述为收发器、收发电路等。Thecommunication interface 830 is used for sending and receiving data, information or messages, etc., and can also be described as a transceiver, a transceiver circuit, and the like.

在本申请实施例中，当该信道估计装置应用于终端设备时，该处理器810调用存储器820中存储的程序代码以执行以下操作：In this embodiment of the present application, when the channel estimation apparatus is applied to a terminal device, theprocessor 810 invokes program codes stored in thememory 820 to perform the following operations:

控制通信接口830在时间窗内，接收终端设备在N个上行信道上发送的解调参考信号DMRS；Control thecommunication interface 830 to receive the demodulation reference signal DMRS sent by the terminal equipment on the N uplink channels within the time window;

处理器810调用存储器820中存储的程序代码根据该N个上行信道中M个上行信道上发送的DMRS，进行联合信道估计，该M和N为正整数，该M个上行信道具有相同的空域相关信息。Theprocessor 810 invokes the program code stored in thememory 820 to perform joint channel estimation according to the DMRS sent on the M uplink channels in the N uplink channels, where M and N are positive integers, and the M uplink channels have the same spatial correlation. information.

传输功率；transmission power;

频域资源位置；frequency domain resource location;

DMRS天线端口；DMRS antenna port;

发送预编码矩阵指示；Send a precoding matrix indication;

传输空间参数；transmission space parameters;

时间提前量；time advance;

M个上行信道中任意两个相邻的上行信道之间的时间间隔小于预设时间间隔，或者，M个上行信道中的任意两个上行信道之间不存在下行信道。The time interval between any two adjacent uplink channels in the M uplink channels is less than the preset time interval, or there is no downlink channel between any two uplink channels in the M uplink channels.

关于上述实施例中描述的装置、产品包含的各个模块/单元，其可以是软件模块/单元，也可以是硬件模块/单元，或者也可以部分是软件模块/单元，部分是硬件模块/单元。例如，对于应用于或集成于芯片的各个装置、产品，其包含的各个模块/单元可以都采用电路等硬件的方式实现，或者，至少部分模块/单元可以采用软件程序的方式实现，该软件程序运行于芯片内部集成的处理器，剩余的(如果有)部分模块/单元可以采用电路等硬件方式实现；对于应用于或集成于芯片模组的各个装置、产品，其包含的各个模块/单元可以都采用电路等硬件的方式实现，不同的模块/单元可以位于芯片模组的同一组件(例如芯片、电路模块等)或者不同组件中，或者，至少部分模块/单元可以采用软件程序的方式实现，该软件程序运行于芯片模组内部集成的处理器，剩余的(如果有)部分模块/单元可以采用电路等硬件方式实现；对于应用于或集成于终端的各个装置、产品，其包含的各个模块/单元可以都采用电路等硬件的方式实现，不同的模块/单元可以位于终端内同一组件(例如，芯片、电路模块等)或者不同组件中，或者，至少部分模块/单元可以采用软件程序的方式实现，该软件程序运行于终端内部集成的处理器，剩余的(如果有)部分模块/单元可以采用电路等硬件方式实现。Regarding the modules/units included in the devices and products described in the foregoing embodiments, they may be software modules/units or hardware modules/units, or may be partly software modules/units and partly hardware modules/units. For example, for each device or product applied to or integrated in a chip, each module/unit included therein may be implemented by hardware such as circuits, or at least some of the modules/units may be implemented by a software program. Running on the processor integrated inside the chip, the remaining (if any) part of the modules/units can be implemented by hardware such as circuits; for each device and product applied to or integrated in the chip module, the modules/units contained therein can be They are all implemented by hardware such as circuits, and different modules/units can be located in the same component of the chip module (such as chips, circuit modules, etc.) or in different components, or at least some of the modules/units can be implemented by software programs. The software program runs on the processor integrated inside the chip module, and the remaining (if any) part of the modules/units can be implemented by hardware such as circuits; for each device and product applied to or integrated in the terminal, each module contained in it The units/units may all be implemented in hardware such as circuits, and different modules/units may be located in the same component (eg, chip, circuit module, etc.) or in different components in the terminal, or at least some of the modules/units may be implemented by software programs Realization, the software program runs on the processor integrated inside the terminal, and the remaining (if any) part of the modules/units can be implemented in hardware such as circuits.

请参见图9，图9为本申请实施例提供的一种信道估计装置的芯片简化示意图，该芯片中包括处理器910和数据接口920。该芯片可以用于处理如图5中方法相应的功能。该芯片可以包含于如图8所示的信道估计装置中。该芯片也可以包含于芯片模组中。Referring to FIG. 9 , FIG. 9 is a simplified schematic diagram of a chip of a channel estimation apparatus provided by an embodiment of the present application, where the chip includes aprocessor 910 and adata interface 920 . The chip can be used to process functions corresponding to the method in FIG. 5 . The chip can be included in the channel estimation apparatus as shown in FIG. 8 . The chip may also be included in a chip module.

请参见图10，图10为本申请实施例提供的一种芯片模组的简化示意图，该芯片模组包括芯片1010和收发器1020，当该芯片模组应用于网络设备时，其中：Please refer to FIG. 10. FIG. 10 is a simplified schematic diagram of a chip module provided by an embodiment of the application. The chip module includes achip 1010 and atransceiver 1020. When the chip module is applied to a network device, wherein:

该芯片1010用于控制收发器1020在时间窗内，接收终端设备在N个上行信道上发送的解调参考信号DMRS；Thechip 1010 is used to control thetransceiver 1020 to receive the demodulation reference signal DMRS sent by the terminal equipment on the N uplink channels within the time window;

该芯片1010还用于根据该N个上行信道中M个上行信道上发送的DMRS，进行联合信道估计，该M和N为正整数，该M个上行信道具有相同的空域相关信息。Thechip 1010 is further configured to perform joint channel estimation according to the DMRS sent on the M uplink channels in the N uplink channels, where M and N are positive integers, and the M uplink channels have the same spatial domain related information.

传输功率；transmission power;

频域资源位置；frequency domain resource location;

DMRS天线端口；DMRS antenna port;

发送预编码矩阵指示；Send a precoding matrix indication;

传输空间参数；transmission space parameters;

时间提前量；time advance;

需要说明的是，在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详细描述的部分，可以参见其他实施例的相关描述。It should be noted that, in the foregoing embodiments, the description of each embodiment has its own emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

本发明实施例方法中的步骤可以根据实际需要进行顺序调整、合并和删减。The steps in the method of the embodiment of the present invention may be adjusted, combined and deleted in sequence according to actual needs.

本发明实施例处理设备中的单元可以根据实际需要进行合并、划分和删减。The units in the processing device in the embodiment of the present invention may be combined, divided, and deleted according to actual needs.

在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行计算机程序指令时，全部或部分地产生按照本申请实施例的流程或功能。计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线)或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。可用介质可以是磁性介质，(例如，软盘、存储盘、磁带)、光介质(例如，DVD)、或者半导体介质(例如固态存储盘Solid State Disk(SSD))等。In the above-mentioned embodiments, it may be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented in software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the procedures or functions according to the embodiments of the present application are generated in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable device. Computer instructions may be stored on or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website site, computer, server, or data center over a wire (e.g. coaxial cable, optical fiber, digital subscriber line) or wireless (eg infrared, wireless, microwave, etc.) means to another website site, computer, server or data center. A computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, a data center, or the like that includes an integration of one or more available media. Useful media may be magnetic media (eg, floppy disks, storage disks, magnetic tapes), optical media (eg, DVD), or semiconductor media (eg, Solid State Disk (SSD)), among others.

最后应说明的是：以上各实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述各实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的范围。Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features thereof can be equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present application. scope.