一种配置参考信号的方法和装置 技术领域 A method and device for configuring reference signals Technical field
本发明涉及通信领域, 尤其涉及一种配置参考信号的方法和装 置。 背景技术 The present invention relates to the field of communications, and in particular to a method and device for configuring reference signals. Background technique
在 LTE(Long Term Evolution,长期演进)系 统中 , CP(cyclic prefix , 循环前缀)包括两种可能的配置: 常规 CP和扩展 CP。 In the LTE (Long Term Evolution, long-term evolution) system, CP (cyclic prefix, cyclic prefix) includes two possible configurations: regular CP and extended CP.
在网络中, 不同的小区或不同的接入节点可以使用不同的 CP 配置 。 在基站 向 UE(User Equipment , 用 户 设备)发送多 个 CSI-RS(Channel State Information-Reference Signal,信道状态信息- 参考信号)时, 所述多个 CSI-RS可能使用不同的 CP配置, 即, 一部 分 CSI-RS使用常规 CP , 而另一部分 CSI-RS使用扩展 CP。 而 UE 无法正确获取每一个 CSI-RS使用的 CP 配置, 因而, UE就可能无 法正确确定 CSI-RS对应的 CSI-RS序列和 /或导频图案, 从而无法正 确接收和使用 CSI-RS。 发明内容 In the network, different cells or different access nodes may use different CP configurations. When the base station sends multiple CSI-RS (Channel State Information-Reference Signal, channel state information-reference signal) to UE (User Equipment, user equipment), the multiple CSI-RS may use different CP configurations, that is, Some of the CSI-RS use the regular CP, while the other part of the CSI-RS use the extended CP. However, the UE cannot correctly obtain the CP configuration used by each CSI-RS. Therefore, the UE may not be able to correctly determine the CSI-RS sequence and/or pilot pattern corresponding to the CSI-RS, so that it cannot receive and use the CSI-RS correctly. Contents of the invention
本发明实施例提供一种配置参考信号的方法和装置, 能够正确 确定 CSI-RS对应的 CSI-RS序列和 /或导频图案, 进而正确接收和使 用 CSI-RS。 Embodiments of the present invention provide a method and device for configuring reference signals, which can correctly determine the CSI-RS sequence and/or pilot pattern corresponding to the CSI-RS, and then correctly receive and use the CSI-RS.
根据本发明的一方面, 提供一种参考信号的配置方法, 所述方 法包括: According to an aspect of the present invention, a method for configuring a reference signal is provided, the method comprising:
基站向 UE发送 CSI-RS 的 CP长度指示信息, 所述 CP长度指 示信息能够被所述 UE用来确定所述 CSI-RS 的 CP长度, 以使所述 UE 居所述 CP长度,确定所述 CSI-RS对应的 CSI-RS序列和 /或导 频图案。 根据本发明的另一方面, 提供一种配置参考信号的基站装置, 所述装置包括: The base station sends the CP length indication information of the CSI-RS to the UE, and the CP length indication information can be used by the UE to determine the CP length of the CSI-RS, so that the UE occupies the CP length and determines the The CSI-RS sequence and/or pilot pattern corresponding to the CSI-RS. According to another aspect of the present invention, a base station device for configuring a reference signal is provided, and the device includes:
发送单元, 用于向 UE发送 CSI-RS 的 CP长度指示信息, 所述 CP长度指示信息能够被所述 UE用来确定所述 CSI-RS的 CP长度, 以使所述 UE根据所述 CP 长度, 确定所述 CSI-RS 对应的 CSI-RS 序列和 /或导频图案。 a sending unit, configured to send CP length indication information of the CSI-RS to the UE, and the CP length indication information can be used by the UE to determine the CP length of the CSI-RS, so that the UE can use the CP length according to the CP length , and determine the CSI-RS sequence and/or pilot pattern corresponding to the CSI-RS.
根据本发明的一方面, 提供一种配置参考信号的方法, 所述方 法包括: According to an aspect of the present invention, a method for configuring a reference signal is provided, the method comprising:
UE获取 CSI-RS的 CP长度; The UE acquires the CP length of the CSI-RS;
所述 UE根据所述 CP 长度, 确定所述 CSI-RS 对应的 CSI-RS 序列和导频图案。 The UE determines the CSI-RS sequence and pilot pattern corresponding to the CSI-RS according to the CP length.
根据本发明的另一方面, 提供一种配置参考信号的 UE , 所述 UE包括: According to another aspect of the present invention, a UE configured with a reference signal is provided, and the UE includes:
获取单元, 用于获取 CSI-RS的 CP长度; an acquisition unit, configured to acquire the CP length of the CSI-RS;
确定单元, 用于根据所述获取单元获取的 CP 长度, 确定所述 CSI-RS对应的 CSI-RS序列和导频图案。 A determining unit is configured to determine a CSI-RS sequence and a pilot pattern corresponding to the CSI-RS according to the CP length obtained by the obtaining unit.
釆用上述技术方案后, 本发明实施例提供的配置参考信号的方 法和装置, 基站向 UE发送 CSI-RS 的 CP 长度指示信息, 所述 UE 能够根据所述 CP长度指示信息, 获取所述 CSI-RS 的 CP长度, 进 而确定所述 CSI-RS对应的 CSI-RS序列和导频图案。 由于在此过程 中, 会先确定 CSI-RS的 CP长度, 因而, 能够正确确定所述 CSI-RS 对应的 CSI-RS 序列和 /或导频图案, 进而正确接收和使用所述 CSI-RS。 附图说明 实施例或现有技术描述中所需要使用的附图作简单地介绍, 显而易见地, 下面描述中的附图仅仅是本发明的一些实施例,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。 After adopting the above technical solution, in the method and device for configuring reference signals provided by the embodiments of the present invention, the base station sends the CP length indication information of the CSI-RS to the UE, and the UE can obtain the CSI according to the CP length indication information. - the CP length of the RS, and then determine the CSI-RS sequence and pilot pattern corresponding to the CSI-RS. Because in this process, the CP length of the CSI-RS will be determined first, therefore, the CSI-RS sequence and/or pilot pattern corresponding to the CSI-RS can be correctly determined, and then the CSI-RS can be received and used correctly. BRIEF DESCRIPTION OF THE DRAWINGS The drawings used in the embodiments or the description of the prior art are briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, On the premise of no creative work, other attachedpicture.
图 1为本发明实施例提供的配置参考信号的方法的流程图; FIG. 1 is a flowchart of a method for configuring a reference signal provided by an embodiment of the present invention;
图 2为本发明提供的配置参考信号的方法的一实施例的流程图; 图 3为本发明提供的配置参考信号的方法的另一实施例的流程图; 图 4为本发明提供的配置参考信号的方法的又一实施例的流程图; 图 5为本发明实施例提供的配置参考信号的基站装置的结构框图; 图 6A为本发明实施例提供的配置参考信号的 UE的结构框图; 图 6B为图 6A中所示的获取单元的结构框图。 具体实施方式 Fig. 2 is a flowchart of an embodiment of a method for configuring a reference signal provided by the present invention; Fig. 3 is a flowchart of another embodiment of a method for configuring a reference signal provided by the present invention; Fig. 4 is a configuration reference provided by the present invention A flow chart of another embodiment of a signal method; FIG. 5 is a structural block diagram of a base station device for configuring a reference signal according to an embodiment of the present invention; FIG. 6A is a structural block diagram of a UE for configuring a reference signal according to an embodiment of the present invention; FIG. 6B is a structural block diagram of the acquisition unit shown in FIG. 6A. Detailed ways
下面将结合本发明实施例中的附图, 对本发明实施例的技术方案进行 清楚、 完整地描述, 显然, 所描述的实施例仅仅是本发明的一部分实施例, 而不是全部的实施例。 基于本发明中的实施例, 本领域普通技术人员在没 有做出创造性劳动的前提下所获得的所有其它实施例, 都属于本发明保护 的范围。 The following will clearly and completely describe the technical solutions of the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
本发明实施例提供一种配置参考信号的方法, 所述方法基于基 站而描述, 包括: An embodiment of the present invention provides a method for configuring a reference signal, the method is described based on a base station, including:
基站向 UE发送 CSI-RS 的 CP长度指示信息, 所述 CP长度指 示信息能够被所述 UE用来确定所述 CSI-RS 的 CP长度, 以使所述 UE 居所述 CP长度,确定所述 CSI-RS对应的 CSI-RS序列和 /或导 频图案。 The base station sends the CP length indication information of the CSI-RS to the UE, and the CP length indication information can be used by the UE to determine the CP length of the CSI-RS, so that the UE occupies the CP length and determines the The CSI-RS sequence and/or pilot pattern corresponding to the CSI-RS.
其中,所述 CP长度指示信息用以直接或间接指示 CSI-RS的 CP 长度。 所述 CP长度指示信息包括: 所述 CSI-RS对应的 CP长度、 所述 CSI-RS对应小区的小区标识等。 Wherein, the CP length indication information is used to directly or indirectly indicate the CP length of the CSI-RS. The CP length indication information includes: the CP length corresponding to the CSI-RS, the cell identity of the cell corresponding to the CSI-RS, and the like.
基站能以各种方式向 UE发送 CSI-RS的 CP长度指示信息。 具 体地, 一种方式为基站针对至少一个信道状态信息-参考信号向所述 用户设备发送所述至少一个信道状态信息 -参考信号中的每一个信 道状态信息 -参考信号对应的循环前缀长度指示信息, 另一种方式可 为位图映射的方式, 即基站以位图映射的方式向所述 UE 发送 CSI-RS的 CP长度指示信息。 The base station can send the CP length indication information of the CSI-RS to the UE in various ways. Specifically, one manner is that the base station sends the cyclic prefix length indication information corresponding to each channel state information-reference signal in the at least one channel state information-reference signal to the user equipment , another manner may be a bitmap mapping manner, that is, the base station sends to the UE in a bitmap mapping manner CP length indication information of the CSI-RS.
本发明实施例提供的配置参考信号的方法, 基站向 UE 发送 CSI-RS的 CP长度指示信息, 所述 UE能够根据所述 CP长度指示信 息, 获取所述 CSI-RS 的 CP 长度, 进而确定所述 CSI-RS 对应的 CSI-RS序列和导频图案。 由于在此过程中, 会先确定 CSI-RS的 CP 长度, 因而, 能够正确确定所述 CSI-RS对应的 CSI-RS序列和 /或导 频图案, 进而正确接收和使用所述 CSI-RS。 相应的, 如图 1 所示, 本发明实施例还提供一种配置参考信号 的方法, 所述方法基于 UE而描述, 包括: In the method for configuring a reference signal provided in the embodiment of the present invention, the base station sends the CP length indication information of the CSI-RS to the UE, and the UE can obtain the CP length of the CSI-RS according to the CP length indication information, and then determine the CP length of the CSI-RS. CSI-RS sequence and pilot pattern corresponding to the above CSI-RS. Because in this process, the CP length of the CSI-RS will be determined first, therefore, the CSI-RS sequence and/or pilot pattern corresponding to the CSI-RS can be correctly determined, and then the CSI-RS can be received and used correctly. Correspondingly, as shown in FIG. 1, the embodiment of the present invention also provides a method for configuring a reference signal, and the method is described based on UE, including:
1 1、 UE获取 CSI-RS的 CP长度。 11. The UE acquires the CP length of the CSI-RS.
其中, UE 能够以各种方式来获取 CSI-RS 的 CP 长度信息。 在 所述 CSI-RS为所述基站向所述 UE指示 CP长度的第一 CSI-RS时 , UE可根据所述基站下发的所述第一 CSI-RS 的 CP 长度指示信息来 确定所述第一 CSI-RS对应的 CP长度。 在所述 CSI-RS 为所述基站 未向所述 UE指示 CP长度的第二 CSI-RS 时, UE可利用第一信号 对应的 CP长度作为所述第二 CSI-RS的 CP长度; 或者, UE确定所 述第二 CSI-RS 的 CP 长度为常规循环前缀长度; 或者, UE确定所 述第二 CSI-RS 的 CP 长度为扩展循环前缀长度; 或者, UE确定所 述第二 CSI-RS的 CP长度与主服务小区对应的 CP长度相同。 Among them, the UE can obtain the CP length information of the CSI-RS in various ways. When the CSI-RS is the first CSI-RS for which the base station indicates the CP length to the UE, the UE may determine the CP length indication information of the first CSI-RS sent by the base station. CP length corresponding to the first CSI-RS. When the CSI-RS is the second CSI-RS for which the base station does not indicate the CP length to the UE, the UE may use the CP length corresponding to the first signal as the CP length of the second CSI-RS; or, The UE determines that the CP length of the second CSI-RS is a regular cyclic prefix length; or, the UE determines that the CP length of the second CSI-RS is an extended cyclic prefix length; or, the UE determines that the CP length of the second CSI-RS is The CP length is the same as the CP length corresponding to the primary serving cell.
其中, 所述第一信号可以包括主服务小区对应的下行控制信道 对应的信号、 主服务小区对应的同步信号、 主服务小区对应的公共 导频信号。 Wherein, the first signal may include a signal corresponding to a downlink control channel corresponding to the primary serving cell, a synchronization signal corresponding to the primary serving cell, and a common pilot signal corresponding to the primary serving cell.
12、 所述 UE根据所述 CP长度信息, 确定所述 CSI-RS对应的 CSI-RS序列和 /或导频图案。 12. The UE determines the CSI-RS sequence and/or pilot pattern corresponding to the CSI-RS according to the CP length information.
本发明实施例提供的配置参考信号的方法, 基站向 UE 发送 CSI-RS的 CP长度指示信息, 所述 UE能够根据所述 CP长度指示信 息, 获取所述 CSI-RS 的 CP 长度, 进而确定所述 CSI-RS 对应的 CSI-RS序列和导频图案。 由于在此过程中, 会先确定 CSI-RS的 CP 长度, 因而, 能够正确确定所述 CSI-RS对应的 CSI-RS序列和 /或导 频图案, 进而正确接收和使用所述 CSI-RS。 In the method for configuring a reference signal provided in the embodiment of the present invention, the base station sends the CP length indication information of the CSI-RS to the UE, and the UE can obtain the CP length of the CSI-RS according to the CP length indication information, and then determine the CP length of the CSI-RS. CSI-RS sequence and pilot pattern corresponding to the above CSI-RS. Since in this process, the CP of the CSI-RS will be determined firstlength, thus, the CSI-RS sequence and/or pilot pattern corresponding to the CSI-RS can be correctly determined, and then the CSI-RS is correctly received and used.
一步说明。 亦须注意, 以下所列举的实施例只是本发明的一部分实施例, 本领域技术人员由本发明所述内容, 可易于想到其他实施例, 它们都在本 发明的范围内。Step by step instructions. It should also be noted that the following embodiments are only some of the embodiments of the present invention, and those skilled in the art can easily think of other embodiments based on the content of the present invention, and they all fall within the scope of the present invention.
下面的实施例 1和实施例 2针对基站向 UE发送的是第一 CSI-RS的 情况, 第一 CSI-RS在本发明实施例中是指所述基站向所述 UE通知 CP 长度信息的 CSI-RS。 实施例 3 针对基站向 UE发送的是第一 CSI-RS 和第二 CSI-RS两种 CSI-RS的情况, 第二 CSI-RS在本发明实施例中是 指所述基站未向所述 UE通知 CP长度信息的 CSI-RS。 The following embodiments 1 and 2 are aimed at the case where the base station sends the first CSI-RS to the UE. The first CSI-RS in the embodiment of the present invention refers to the CSI that the base station notifies the UE of the CP length information -RS. Embodiment 3 For the case where the base station sends two types of CSI-RS, the first CSI-RS and the second CSI-RS to the UE, the second CSI-RS in the embodiment of the present invention means that the base station does not send to the UE CSI-RS notifying CP length information.
实施例 1 Example 1
本实施例适用于基站针对发送给 UE的每一个 CSI-RS , 都直接 向所述 UE发送 CP长度指示信息的情况。 具体地, 如图 2所示, 本 实施例提供的配置参考信号的方法包括: This embodiment is applicable to the situation where the base station directly sends CP length indication information to the UE for each CSI-RS sent to the UE. Specifically, as shown in FIG. 2, the method for configuring a reference signal provided in this embodiment includes:
21、基站向 UE发送多个 CSI-RS , 且针对所述多个 CSI-RS 中的 每一个 CSI-RS向所述 UE发送该 CSI-RS对应的 CP指示信息,所述 CP指示信息包括该 CSI-RS的 CP长度信息。 21. The base station sends multiple CSI-RSs to the UE, and sends CP indication information corresponding to the CSI-RS to the UE for each CSI-RS in the multiple CSI-RSs, and the CP indication information includes the CP length information of the CSI-RS.
可选地, 所述 CP指示信息还可包括该 CSI-RS 的其它 CP相关 信息, 例如 CP格式信息等。 Optionally, the CP indication information may also include other CP-related information of the CSI-RS, such as CP format information.
22、 所述 UE接收该 CSI-RS对应的 CP指示信息, 并根据所述 CP指示信息, 确定该 CSI-RS的 CP长度。 22. The UE receives the CP indication information corresponding to the CSI-RS, and determines the CP length of the CSI-RS according to the CP indication information.
具体地, 由于所述 CP指示信息中包含有该 CSI-RS 的 CP长度 信息,因而, UE在接收到所述 CP指示信息后,可直接确定该 CSI-RS 的 CP长度。 Specifically, since the CP indication information includes the CP length information of the CSI-RS, the UE can directly determine the CP length of the CSI-RS after receiving the CP indication information.
可选的, 基站可以针对通知给 UE的 CSI-RS的子集中的每一个 CSI-RS 通知该 CSI-RS 对应的 CP 长度信息, 而对于子集外通知给 UE的其他 CSI-RS , 则通知 UE这些 CSI-RS统一使用常规 CP或扩 展 CP。 Optionally, the base station may notify the CP length information corresponding to the CSI-RS for each CSI-RS in the subset of CSI-RS notified to the UE, and for other CSI-RS notified to the UE outside the subset, notify These CSI-RSs of the UE uniformly use the conventional CP or extendedExhibition CP.
可选的, 当所述 CP指示信息还包括该 CSI-RS 的其它 CP相关 信息(如 CP格式信息等)时,所述 UE接收该 CSI-RS对应的 CP指示 信息, 并根据所述 CP指示信息, 确定该 CSI-RS 的其它 CP相关参 数信息, 如 CP格式信息等。 Optionally, when the CP indication information also includes other CP-related information of the CSI-RS (such as CP format information, etc.), the UE receives the CP indication information corresponding to the CSI-RS, and according to the CP indication The information determines other CP-related parameter information of the CSI-RS, such as CP format information.
23、 所述 UE根据确定的该 CSI-RS的 CP长度, 确定该 CSI-RS 对应的 CSI-RS序列和 /或导频图案。 23. The UE determines the CSI-RS sequence and/or pilot pattern corresponding to the CSI-RS according to the determined CP length of the CSI-RS.
具体地, 确定 CSI-RS 对应的 CSI-RS 序列可使用如下 CSI-RS 序列生成公式: Specifically, to determine the CSI-RS sequence corresponding to the CSI-RS, the following CSI-RS sequence generation formula can be used:
Cinit = 21。 · (7 · ("s + 1)+ / + 1)· (2 J + 1)+ 2 · + NCP或者写成 cmit = f(Ncp,...)Cinit = 21 . · (7 · ("s + 1)+ / + 1) · (2 J + 1)+ 2 · + NCP or written as cmit = f(Ncp,...)
ΆΤ ίι 对于常规 CPΆΤ ίι for regular CP
Ncv = < —丄〜Ncv = <—丄~
1θ 对于扩展 CP 其中, X表示 CSI-RS的参数, 该参数包括但不限于小区标识。 Cinit表示在每一个 OFDM(Orthogonal Frequency Division Multiplexing, 正交频分复用)符号的开始用于初始化伪随机序列生成器的状态信 息, ns表示无线帧中的时隙编号, /表示时隙中的 OFDM符号编号, Nc 表示 CP长度对应参数。1θ For the extended CP, X represents a CSI-RS parameter, which includes but not limited to a cell identity. Cin it represents the state information used to initialize the pseudo-random sequence generator at the beginning of each OFDM (Orthogonal Frequency Division Multiplexing, Orthogonal Frequency Division Multiplexing) symbol, ns represents the slot number in the radio frame, / represents OFDM symbol number in the slot, Nc represents the parameter corresponding to the CP length.
同时, 可具体如下确定 CSI-RS对应的导频图案: At the same time, the pilot pattern corresponding to the CSI-RS can be specifically determined as follows:
1 )如果所述 CSI-RS对应的 CP为常规 CP , 则根据所述 CSI-RS 的导频图案编号从常规 CP对应的 CSI-RS导频图案集合中找到对应 的导频图案; 1) If the CP corresponding to the CSI-RS is a regular CP, then find the corresponding pilot pattern from the CSI-RS pilot pattern set corresponding to the regular CP according to the pilot pattern number of the CSI-RS;
2 )如果所述 CSI-RS对应的 CP为扩展 CP , 则根据对应 CSI-RS 的导频图案编号从扩展 CP对应的 CSI-RS导频图案集合中找到对应 的导频图案。 2) If the CP corresponding to the CSI-RS is an extended CP, find the corresponding pilot pattern from the CSI-RS pilot pattern set corresponding to the extended CP according to the pilot pattern number of the corresponding CSI-RS.
本发明实施例提供的配置参考信号的方法, 基站向 UE 发送 CSI-RS的 CP长度指示信息, 所述 UE能够根据所述 CP长度指示信 息, 获取所述 CSI-RS 的 CP 长度, 进而确定所述 CSI-RS 对应的 CSI-RS序列和导频图案。 由于在此过程中, 会先确定 CSI-RS的 CP 长度, 因而, 能够正确确定所述 CSI-RS对应的 CSI-RS序列和 /或导 频图案, 进而正确接收和使用所述 CSI-RS。 实施例 2 In the method for configuring a reference signal provided in the embodiment of the present invention, the base station sends the CP length indication information of the CSI-RS to the UE, and the UE can obtain the CP length of the CSI-RS according to the CP length indication information, and then determine the CP length of the CSI-RS. CSI-RS sequence and pilot pattern corresponding to the above CSI-RS. Because in this process, the CP length of the CSI-RS will be determined first, therefore, the CSI-RS sequence and/or guide corresponding to the CSI-RS can be correctly determinedfrequency pattern, and then correctly receive and use the CSI-RS. Example 2
本实施例适用于基站针对发送给 UE的每一个 CSI-RS , 都向所 述 UE发送该 CSI-RS所对应小区的小区标识的情况,即以该 CSI-RS 所对应小区的小区标识作为该 CSI-RS的 CP长度指示信息。具体地, 如图 3所示, 本实施例提供的配置参考信号的方法包括: This embodiment is applicable to the case where the base station sends to the UE the cell identity of the cell corresponding to the CSI-RS for each CSI-RS sent to the UE, that is, the cell identity of the cell corresponding to the CSI-RS is used as the CP length indication information of the CSI-RS. Specifically, as shown in FIG. 3, the method for configuring a reference signal provided in this embodiment includes:
3 1、基站向 UE发送多个 CSI-RS , 且针对所述多个 CSI-RS 中的 每一个 CSI-RS向所述 UE发送该 CSI-RS对应的 CP指示信息,所述 CP 指示信息包括该 CSI-RS 所对应小区的小区标识(CP 长度指示信 息)。 31. The base station sends multiple CSI-RSs to the UE, and sends CP indication information corresponding to the CSI-RS to the UE for each CSI-RS in the multiple CSI-RSs, and the CP indication information includes The cell identity of the cell corresponding to the CSI-RS (CP length indication information).
32、 所述 UE接收该 CSI-RS对应的 CP指示信息, 并根据所述 CP指示信息中包含的该 CSI-RS 所对应小区的小区标识, 确定该小 区的 CP长度。 32. The UE receives the CP indication information corresponding to the CSI-RS, and determines the CP length of the cell according to the cell identity of the cell corresponding to the CSI-RS included in the CP indication information.
33、 所述 UE确定该 CSI-RS 的 CP长度为该小区对应的 CP长 度。 33. The UE determines that the CP length of the CSI-RS is the CP length corresponding to the cell.
可选的, 当所述 CP指示信息还可包括该 CSI-RS 的其它 CP相 关信息时, 如 CP格式信息等,所述 UE接收该 CSI-RS对应的 CP指 示信息, 并根据所述 CP指示信息中包含的该 CSI-RS所对应小区的 小区标识, 确定该 CSI-RS的其它 CP相关参数信息与该小区对应的 CP相关参数 (如 CP格式信息等) 相同。 Optionally, when the CP indication information may also include other CP-related information of the CSI-RS, such as CP format information, the UE receives the CP indication information corresponding to the CSI-RS, and according to the CP indication The cell identity of the cell corresponding to the CSI-RS contained in the information determines that other CP-related parameter information of the CSI-RS is the same as the CP-related parameter (such as CP format information, etc.) corresponding to the cell.
34、 所述 UE根据确定的该 CSI-RS的 CP长度, 确定该 CSI-RS 对应的 CSI-RS序列和 /或导频图案。 34. The UE determines the CSI-RS sequence and/or pilot pattern corresponding to the CSI-RS according to the determined CP length of the CSI-RS.
其中,确定 CSI-RS序列和导频图案的具体方式可参照实施例 1。 需要说明的是, 在本发明实施例中, 基站通知用户设备 CSI-RS 所对应小区的小区标识时,这里所说的 CSI-RS所对应小区只是用于 通知用户设备该 CSI-RS 的 CP参数与该小区的 CP参数一致, 并不 一定要求该小区为发送该 CSI-RS的小区。 Wherein, the specific manner of determining the CSI-RS sequence and the pilot pattern can refer to Embodiment 1. It should be noted that, in the embodiment of the present invention, when the base station notifies the user equipment of the cell identity of the cell corresponding to the CSI-RS, the cell corresponding to the CSI-RS mentioned here is only used to notify the user equipment of the CP parameter of the CSI-RS Consistent with the CP parameter of the cell, the cell is not necessarily required to be the cell that sends the CSI-RS.
本发明实施例提供的配置参考信号的方法, 基站向 UE 发送 CSI-RS的 CP长度指示信息, 所述 UE能够根据所述 CP长度指示信 息, 获取所述 CSI-RS 的 CP 长度, 进而确定所述 CSI-RS 对应的 CSI-RS序列和导频图案。 由于在此过程中, 会先确定 CSI-RS的 CP 长度, 因而, 能够正确确定所述 CSI-RS对应的 CSI-RS序列和 /或导 频图案, 进而正确接收和使用所述 CSI-RS。 In the method for configuring a reference signal provided by an embodiment of the present invention, the base station sends a The CP length indication information of the CSI-RS, the UE can obtain the CP length of the CSI-RS according to the CP length indication information, and then determine the CSI-RS sequence and pilot pattern corresponding to the CSI-RS. Because in this process, the CP length of the CSI-RS will be determined first, therefore, the CSI-RS sequence and/or pilot pattern corresponding to the CSI-RS can be correctly determined, and then the CSI-RS can be received and used correctly.
实施例 3Example 3
本实施例适用于基站发送给 UE 的多个 CSI-RS 中包括第一 CSI-RS和第二 CSI-RS的情况。 This embodiment is applicable to the case where the multiple CSI-RSs sent by the base station to the UE include the first CSI-RS and the second CSI-RS.
如图 4所示, 本实施例提供的配置参考信号的方法包括: As shown in FIG. 4, the method for configuring a reference signal provided in this embodiment includes:
41、 基站向 UE发送多个 CSI-RS , 所述多个 CSI-RS 包括第一 CSI-RS和第二 CSI-RS。 41. The base station sends multiple CSI-RSs to the UE, where the multiple CSI-RSs include a first CSI-RS and a second CSI-RS.
42、 所述 UE 接收所述多个 CSI-RS , 并确定所述第一 CSI-RS 的 CP长度和所述第二 CSI-RS的 CP长度。 42. The UE receives the multiple CSI-RSs, and determines the CP length of the first CSI-RS and the CP length of the second CSI-RS.
具体地, 对于所述第一 CSI-RS , 利用接收的 CP长度指示信息 来确定所述第一 CSI-RS的 CP长度; 对于所述第二 CSI-RS , 利用接 收的第一信号对应的 CP长度, 作为所述第二 CSI-RS 的 CP长度, 或者, 对于所述第二 CSI-RS , 所述 UE 直接确定所述第二 CSI-RS 的 CP 长度为常规循环前缀长度, 或者, 对于所述第二 CSI-RS , 所 述 UE直接确定所述第二 CSI-RS 的 CP长度为扩展循环前缀长度, 或者, 对于所述第二 CSI-RS , 所述 UE确定所述第二 CSI-RS的 CP 长度与主服务小区对应的 CP长度相同。 Specifically, for the first CSI-RS, use the received CP length indication information to determine the CP length of the first CSI-RS; for the second CSI-RS, use the CP corresponding to the received first signal The length is used as the CP length of the second CSI-RS, or, for the second CSI-RS, the UE directly determines that the CP length of the second CSI-RS is a regular cyclic prefix length, or, for the For the second CSI-RS, the UE directly determines that the CP length of the second CSI-RS is an extended cyclic prefix length, or, for the second CSI-RS, the UE determines that the second CSI-RS The length of the CP is the same as the length of the CP corresponding to the primary serving cell.
其中, 上面所述第一信号包括但不限于主服务小区对应的下行 控制信道对应的信号、 主服务小区对应的同步信号、 主服务小区对 应的公共导频信号。 Wherein, the above-mentioned first signal includes but not limited to the signal corresponding to the downlink control channel corresponding to the primary serving cell, the synchronization signal corresponding to the primary serving cell, and the common pilot signal corresponding to the primary serving cell.
同时, 基站能以与 UE相同的方式来确定第二 CSI-RS 的 CP长 度。 At the same time, the base station can determine the CP length of the second CSI-RS in the same manner as the UE.
43、 所述 UE根据确定的所述第一 CSI-RS 的 CP长度和所述第 二 CSI-RS的 CP长度, 相应的确定第一 CSI-RS对应的 CSI-RS序列 和 /或导频图案, 以及第二 CSI-RS 对应的 CSI-RS序列和 /或导频图 案。 43. The UE determines the CP length of the first CSI-RS and the first CSI-RSThe CP length of the two CSI-RSs, correspondingly determine the CSI-RS sequence and/or pilot pattern corresponding to the first CSI-RS, and the CSI-RS sequence and/or pilot pattern corresponding to the second CSI-RS.
可选的,还可以根据第一信号对应的其它 CP相关参数来确定第 二 CSI-RS的对应 CP相关参数,如第二 CSI-RS的其它 CP相关参数 与第一信号对应的 CP相关参数相同。 Optionally, the corresponding CP related parameters of the second CSI-RS may also be determined according to other CP related parameters corresponding to the first signal, for example, other CP related parameters of the second CSI-RS are the same as the CP related parameters corresponding to the first signal .
确定 CSI-RS序列和导频图案的具体方式可参照实施例 1 , 在此 不作赘述。 For the specific manner of determining the CSI-RS sequence and pilot pattern, reference may be made to Embodiment 1, which will not be repeated here.
此外, 需指出的是, 在本发明实施例中, 基站能以与 UE 相同 的方式来获取第二 CSI-RS 的 CP 长度。 具体而言, 在所述 CSI-RS 为第二 CSI-RS时, 所述基站获取 CSI-RS的 CP长度可包括: In addition, it should be pointed out that in the embodiment of the present invention, the base station can obtain the CP length of the second CSI-RS in the same manner as the UE. Specifically, when the CSI-RS is the second CSI-RS, obtaining the CP length of the CSI-RS by the base station may include:
所述基站针对第二 CSI-RS , 利用向所述 UE发送的第一信号对 应的 CP长度, 作为所述第二 CSI-RS 的 CP长度, 其中, 所述第一 信号可包括所述 UE 所在主服务小区对应的下行控制信道对应的信 号、 所述 UE所在主服务小区对应的同步信号、 所述 UE所在主服务 小区对应的公共导频信号等; For the second CSI-RS, the base station uses the CP length corresponding to the first signal sent to the UE as the CP length of the second CSI-RS, where the first signal may include a signal corresponding to the downlink control channel corresponding to the primary serving cell, a synchronization signal corresponding to the primary serving cell where the UE is located, a common pilot signal corresponding to the primary serving cell where the UE is located, etc.;
或者, 所述基站确定所述第二 CSI-RS 的 CP长度为常规 CP长 度; Or, the base station determines that the CP length of the second CSI-RS is a regular CP length;
或者, 所述基站确定所述第二 CSI-RS 的 CP长度为扩展 CP长 度; Or, the base station determines that the CP length of the second CSI-RS is an extended CP length;
或者, 所述基站确定所述第二 CSI-RS的 CP长度与所述 UE所 在主服务小区对应的 CP长度相同。 Or, the base station determines that the CP length of the second CSI-RS is the same as the CP length corresponding to the primary serving cell where the UE is located.
本发明实施例提供的配置参考信号的方法, 基站向 UE 发送 CSI-RS的 CP长度指示信息, 所述 UE能够根据所述 CP长度指示信 息, 获取所述 CSI-RS 的 CP 长度, 进而确定所述 CSI-RS 对应的 CSI-RS序列和导频图案。 由于在此过程中, 会先确定 CSI-RS的 CP 长度, 因而, 能够正确确定所述 CSI-RS对应的 CSI-RS序列和 /或导 频图案, 进而正确接收和使用所述 CSI-RS。 In the method for configuring a reference signal provided in the embodiment of the present invention, the base station sends the CP length indication information of the CSI-RS to the UE, and the UE can obtain the CP length of the CSI-RS according to the CP length indication information, and then determine the CP length of the CSI-RS. CSI-RS sequence and pilot pattern corresponding to the above CSI-RS. Because in this process, the CP length of the CSI-RS will be determined first, therefore, the CSI-RS sequence and/or pilot pattern corresponding to the CSI-RS can be correctly determined, and then the CSI-RS can be received and used correctly.
另外, 特别需要指出的是, 在本发明的所有实施例中, 基站能 够以不同的方式来向 UE通知 CSI-RS的 CP长度信息。 各种方式具 体如下: In addition, it should be pointed out that in all embodiments of the present invention, the base station can It is possible to notify the UE of the CP length information of the CSI-RS in different ways. The various methods are as follows:
方式 1 : 基站针对每一个 CSI-RS , 直接向 UE通知该 CSI-RS对应的 CP长度信息或通知与该 CSI-RS对应的 CP长度相同的小区的小区标识; 方式 2: 基站使用一个位图映射的方式来通知哪些 CSI-RS使用常规 CP或扩展 CP。 Method 1: For each CSI-RS, the base station directly notifies the UE of the CP length information corresponding to the CSI-RS or notifies the cell identity of the cell with the same CP length as the CSI-RS; Method 2: The base station uses a bitmap The way of mapping is used to inform which CSI-RSs use regular CP or extended CP.
举例而言, 可以用位 0表示常规 CP , 位 1表示扩展 CP。 若位图映射 ^口下表所示: For example, bit 0 may be used to indicate a regular CP, and bit 1 may be used to indicate an extended CP. If the bitmap mapping ^port is shown in the table below:
那么 , CSI-RS2/3对应扩展 CP , 而 CSI-RS 1/4/5/6/7/8对应常规 CP。 其中 CSI-RS的编号是基站和 UE共知的。 Then, CSI-RS2/3 corresponds to the extended CP, and CSI-RS 1/4/5/6/7/8 corresponds to the conventional CP. The number of the CSI-RS is known to both the base station and the UE.
基站向 UE通知 CSI-RS的 CP长度信息时, 通知一个位图映射(这 里为 01100000)即可。 When the base station notifies the UE of the CP length information of the CSI-RS, it only needs to notify a bitmap mapping (01100000 here).
方式 3 : 基站使用一个位图映射的方式来通知哪些 CSI-RS使用的 CP 长度与某一个小区对应的 CP长度相同。 Method 3: The base station uses a bitmap mapping method to notify which CSI-RSs use the same CP length as the CP length corresponding to a certain cell.
举例如下, 可以用位图映射来指示哪些 CSI-RS的 CP与指定小区(在 此以小区 1为例说明:)的 CP相同。 可以用位 0表示与指定小区对应的 CP 不同, 位 1表示与指定小区对应的 CP相同。 若位图映射如下表所示: For example, bitmap mapping can be used to indicate which CSI-RS CPs are the same as the CP of a specified cell (here, cell 1 is used as an example for illustration). Bit 0 can be used to indicate that the CP corresponding to the specified cell is different, and bit 1 can be used to indicate that the CP corresponding to the specified cell is the same. If the bitmap mapping is as shown in the table below:
那么, CSI-RS2/3对应的 CP与小区 1对应的 CP相同, 而 Then, the CP corresponding to CSI-RS2/3 is the same as the CP corresponding to cell 1, and
CSI-RS 1/4/5/6/7/8对应的 CP与小区 1对应的 CP不同。 其中, CSI-RS的 编号是基站和 UE共知的, 其中的指定小区是基站通知给 UE的或预定义 的一个小区, 如主服务小区或发送 PDCCH(Physical Downlink Control Channel , 物理下行控制信道)给 UE的小区或与 UE建立 RRC ( Radio Resource Control , 无线资源控制 ) 连接的小区。 The CP corresponding to CSI-RS 1/4/5/6/7/8 is different from the CP corresponding to cell 1. Wherein, the number of the CSI-RS is known to the base station and the UE, and the specified cell is a cell notified by the base station to the UE or a predefined cell, such as a primary serving cell or a PDCCH (Physical Downlink Control Channel, physical downlink control channel) to the cell of the UE or the cell that establishes an RRC (Radio Resource Control, radio resource control) connection with the UE.
基站向 UE通知 CSI-RS的 CP长度信息时, 通知一个位图映射(这 里为 01100000)即可。 When the base station notifies the UE of the CP length information of the CSI-RS, it only needs to notify a bitmap mapping (01100000 here).
在方式 2和方式 3 中, UE在接收到基站发送的位图映射后, 即 可根据已预先协商的位图映射含义, 确定相应 CSI-RS的 CP长度信 息。 与上述本发明实施例提供的配置参考信号的方法相对应, 本发 明实施例还提供一种配置参考信号的基站装置 50 , 如图 5所示, 所 述装置 50 包括: In mode 2 and mode 3, after receiving the bitmap mapping sent by the base station, the UE can determine the CP length information of the corresponding CSI-RS according to the pre-negotiated meaning of the bitmap mapping. Corresponding to the method for configuring reference signals provided by the above-mentioned embodiments of the present invention, this embodiment of the present invention also provides a base station device 50 for configuring reference signals. As shown in FIG. 5, the device 50 includes:
发送单元 51 , 用于向 UE发送 CSI-RS的 CP长度指示信息, 所 述 CP长度指示信息能够被所述 UE用来确定所述 CSI-RS 的 CP长 度,以使所述 UE根据所述 CP长度,确定所述 CSI-RS对应的 CSI-RS 序列和 /或导频图案。 The sending unit 51 is configured to send CP length indication information of the CSI-RS to the UE, and the CP length indication information can be used by the UE to determine the CP length of the CSI-RS, so that the UE can use the CP length indication information according to the CP Length, to determine the CSI-RS sequence and/or pilot pattern corresponding to the CSI-RS.
其中, 所述 CP 长度指示信息可包括: 所述 CSI-RS 对应的 CP 长度、 所述 CSI-RS对应小区的小区标识。 Wherein, the CP length indication information may include: the CP length corresponding to the CSI-RS, and the cell identity of the cell corresponding to the CSI-RS.
可选地, 所述发送单元 51 用于: 针对至少一个信道状态信息- 参考信号向所述用户设备发送所述至少一个信道状态信息-参考信 号中的每一个信道状态信息-参考信号对应的循环前缀长度指示信 息, 或者, 以位图映射的方式向所述用户设备发送信道状态信息-参 考信号的循环前缀长度指示信息。 Optionally, the sending unit 51 is configured to: send the at least one channel state information-reference signal to the user equipment in a cycle corresponding to each channel state information-reference signal in the at least one channel state information-reference signal The prefix length indication information, or, sending the channel state information-cyclic prefix length indication information of the reference signal to the user equipment in a bitmap mapping manner.
本发明实施例提供的配置参考信号的基站装置, 基站向 UE 发 送 CSI-RS 的 CP长度指示信息, 所述 UE 能够根据所述 CP长度指 示信息, 获取所述 CSI-RS 的 CP长度, 进而确定所述 CSI-RS对应 的 CSI-RS序列和导频图案。 由于在此过程中, 会先确定 CSI-RS的 CP长度, 因而, 能够正确确定所述 CSI-RS对应的 CSI-RS序列和 / 或导频图案, 进而正确接收和使用所述 CSI-RS。 与上述本发明实施例提供的配置参考信号的方法相对应, 本发 明实施例还提供一种配置参考信号的 UE 60 , 如图 6A 所示, 所述 UE 60 包括: In the base station device configured with a reference signal provided in the embodiment of the present invention, the base station sends the CP length indication information of the CSI-RS to the UE, and the UE can obtain the CP length of the CSI-RS according to the CP length indication information, and then determine A CSI-RS sequence and a pilot pattern corresponding to the CSI-RS. Because in this process, the CP length of the CSI-RS will be determined first, therefore, the CSI-RS sequence and/or pilot pattern corresponding to the CSI-RS can be correctly determined, and then the CSI-RS can be received and used correctly. Corresponding to the method for configuring a reference signal provided by the above-mentioned embodiment of the present invention, the embodiment of the present invention also provides a UE 60 for configuring a reference signal. As shown in FIG. 6A, the UE 60 includes:
获取单元 61 , 用于获取 CSI-RS的 CP长度; An acquisition unit 61, configured to acquire the CP length of the CSI-RS;
确定单元 62 , 用于根据所述获取单元获取的所述 CSI-RS的 CP 长度, 确定所述 CSI-RS对应的 CSI-RS序列和 /或导频图案。 The determining unit 62 is configured to determine the CSI-RS sequence and/or pilot pattern corresponding to the CSI-RS according to the CP length of the CSI-RS acquired by the acquiring unit.
其中, 所述 CSI-RS可以为第一 CSI-RS或第二 CSI-RS。 在本发 明实施例中, 所述第一 CSI-RS为所述基站向所述 UE指示 CP长度 的 CSI-RS ;所述第二 CSI-RS为所述基站未向所述 UE指示 CP长度 的 CSI-RS。 Wherein, the CSI-RS may be the first CSI-RS or the second CSI-RS. In this embodiment of the present invention, the first CSI-RS is a CSI-RS for which the base station indicates a CP length to the UE; the second CSI-RS is a CSI-RS for which the base station does not indicate a CP length to the UE CSI-RS.
在本发明的一个实施例中, 所述 CSI-RS 为第一 CSI-RS , 如图 6B所示, 所述获取单元 61 包括: In an embodiment of the present invention, the CSI-RS is the first CSI-RS, as shown in FIG. 6B, the obtaining unit 61 includes:
接收模块 61 1 , 用于接收基站针对第一 CSI-RS而发送的所述第 一 CSI-RS对应的 CP长度指示信息; The receiving module 611 is configured to receive CP length indication information corresponding to the first CSI-RS sent by the base station for the first CSI-RS;
确定模块 612 , 用于根据所述接收模块 61 1接收的第一 CSI-RS 对应的 CP长度指示信息, 确定所述第一 CSI-RS的 CP长度。 The determining module 612 is configured to determine the CP length of the first CSI-RS according to the CP length indication information corresponding to the first CSI-RS received by the receiving module 611.
其中, 所述 CP长度指示信息包括: 所述 CSI-RS对应的 CP长 度、 所述 CSI-RS对应小区的小区标识。 Wherein, the CP length indication information includes: the CP length corresponding to the CSI-RS, and the cell identity of the cell corresponding to the CSI-RS.
可选地, 在本发明的一个实施例中, 所述 CP长度指示信息为所 述第一 CSI-RS的 CP长度, 所述确定模块 612可直接确定所述第一 CSI-RS的 CP长度。 Optionally, in one embodiment of the present invention, the CP length indication information is the CP length of the first CSI-RS, and the determining module 612 may directly determine the CP length of the first CSI-RS.
可选的, 在本发明的一个实施例中, 所述 CP长度指示信息为所 述第一 CSI-RS所对应的小区的小区标识; 此时, 所述确定模块 612 用于: Optionally, in one embodiment of the present invention, the CP length indication information is the cell identifier of the cell corresponding to the first CSI-RS; at this time, the determining module 612 is configured to:
根据所述第一 CSI-RS所对应的小区的小区标识,确定该小区对 应的 CP长度; determining the CP length corresponding to the cell according to the cell identity of the cell corresponding to the first CSI-RS;
确定所述第一 CSI-RS的 CP长度为该小区对应的 CP长度。 在本发明的另一个实施例中, 所述 CSI-RS 为第二 CSI-RS , 此 时, 所述获取单元 61还用于: 针对第二 CSI-RS , 利用接收的第一信号对应的 CP长度, 作为 所述第二 CSI-RS的 CP长度; Determining that the CP length of the first CSI-RS is the CP length corresponding to the cell. In another embodiment of the present invention, the CSI-RS is the second CSI-RS, and at this time, the obtaining unit 61 is further configured to: For the second CSI-RS, using the CP length corresponding to the received first signal as the CP length of the second CSI-RS;
或者, 确定所述第二 CSI-RS的 CP长度为常规 CP长度; 或者, 确定所述第二 CSI-RS的 CP长度为扩展 CP长度; 或者,确定所述第二 CSI-RS的 CP长度与主服务小区对应的 CP 长度相同。 Or, determine that the CP length of the second CSI-RS is a regular CP length; or, determine that the CP length of the second CSI-RS is an extended CP length; or, determine that the CP length of the second CSI-RS is the same as The CPs corresponding to the primary serving cell have the same length.
其中, 所述第一信号包括主服务小区对应的下行控制信道对应 的信号、 主服务小区对应的同步信号、 主服务小区对应的公共导频 信号。 Wherein, the first signal includes a signal corresponding to a downlink control channel corresponding to the primary serving cell, a synchronization signal corresponding to the primary serving cell, and a common pilot signal corresponding to the primary serving cell.
本发明实施例提供的配置参考信号的基站装置, 基站向 UE 发 送 CSI-RS 的 CP长度指示信息, 所述 UE 能够根据所述 CP长度指 示信息, 获取所述 CSI-RS 的 CP长度, 进而确定所述 CSI-RS对应 的 CSI-RS序列和导频图案。 由于在此过程中, 会先确定 CSI-RS的 CP长度, 因而, 能够正确确定所述 CSI-RS对应的 CSI-RS序列和 / 或导频图案, 进而正确接收和使用所述 CSI-RS。 In the base station device configured with a reference signal provided in the embodiment of the present invention, the base station sends the CP length indication information of the CSI-RS to the UE, and the UE can obtain the CP length of the CSI-RS according to the CP length indication information, and then determine A CSI-RS sequence and a pilot pattern corresponding to the CSI-RS. Because in this process, the CP length of the CSI-RS will be determined first, therefore, the CSI-RS sequence and/or pilot pattern corresponding to the CSI-RS can be correctly determined, and then the CSI-RS can be received and used correctly.
需要说明的是, 本发明中的信道状态信息-参考信号 CSI-RS 包 括信道状态信息-参考信号 CSI-RS资源。 It should be noted that the channel state information-reference signal CSI-RS in the present invention includes channel state information-reference signal CSI-RS resources.
值得注意的是, 上述基站和 UE 实施例中, 所包括的各个单元 只是按照功能逻辑进行划分的, 但并不局限于上述的划分, 只要能 够实现相应的功能即可; 另外, 各功能单元的具体名称也只是为了 便于相互区分, 并不用于限制本发明的保护范围。 It is worth noting that, in the above embodiments of the base station and UE, the units included are only divided according to functional logic, but are not limited to the above division, as long as the corresponding functions can be realized; in addition, each functional unit The specific names are only for the convenience of distinguishing each other, and are not used to limit the protection scope of the present invention.
本领域普通技术人员可以理解实现上述实施例方法中的全部或 部分步骤是可以通过程序来指令相关的硬件完成, 所述的程序可以 存储于一种计算机可读存储介质中, 所述存储介质可以是只读存储 器、 磁盘或光盘等。 Those of ordinary skill in the art can understand that all or part of the steps in the methods of the above embodiments can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium, and the storage medium can be Is read-only memory, disk or CD-ROM, etc.
以上所述, 仅为本发明的具体实施方式, 但本发明的保护范围 并不局限于此, 任何熟悉本技术领域的技术人员在本发明揭露的技 术范围内, 可轻易想到变化或替换, 都应涵盖在本发明的保护范围 之内。 因此, 本发明的保护范围应以权利要求的保护范围为准。 The above description is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. Should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.
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