站间同步的方法及基站 技术领域 Inter-station synchronization method and base station Technical field
本发明实施例涉及通信领域， 并且更具体地， 涉及一种站间同步的方法 及基站。 背景技术 Embodiments of the present invention relate to the communication field, and more specifically, relate to an inter-station synchronization method and a base station. Background technique
在无线蜂窝网络中， 为了减小宏基站的压力， 也为了给终端提供更好的 数据服务， 可以部署一个或者多个微基站为宏基站分流。 但是， 为了保证正 常的数据传输， 宏基站与微基站之间， 微基站与微基站之间必须保持同步。 提供同步信息的同步源基站和获取同步信息的同步基站之间的站间同步有 时间同步和频率同步。 但是， 目前所使用的同步方式不能同时满足同步基站 的时间同步和频率同步的需求。 发明内容 In a wireless cellular network, in order to reduce the pressure on the macro base station and provide better data services for terminals, one or more micro base stations may be deployed to offload traffic for the macro base station. However, in order to ensure normal data transmission, synchronization must be maintained between the macro base station and the micro base station, and between the micro base station and the micro base station. The inter-station synchronization between the synchronization source base station providing synchronization information and the synchronization base station obtaining synchronization information includes time synchronization and frequency synchronization. However, currently used synchronization methods cannot simultaneously meet the requirements of time synchronization and frequency synchronization of synchronous base stations. Contents of the invention
本发明实施例提供了一种站间同步的方法及基站， 能够解决时间同步和 频率同步的需求不能同时满足的问题。 Embodiments of the present invention provide an inter-station synchronization method and a base station, which can solve the problem that the requirements for time synchronization and frequency synchronization cannot be met simultaneously.
第一方面， 提供了一种站间同步的方法， 该方法包括： 同步源基站生成 第一同步参考信号和第二同步参考信号， 所述第一同步参考信号的图案和所 述第二同步参考信号的图案不同； 所述同步源基站将所述第一同步参考信号 和所述第二同步参考信号发送至同步基站， 以便所述同步基站根据所述第一 同步参考信号与所述同步源基站进行时间同步并且根据所述第二同步参考 信号与所述源基站进行频率同步。 In a first aspect, a method for inter-station synchronization is provided, and the method includes: a synchronization source base station generating a first synchronization reference signal and a second synchronization reference signal, a pattern of the first synchronization reference signal and the second synchronization reference The patterns of the signals are different; the synchronization source base station sends the first synchronization reference signal and the second synchronization reference signal to a synchronization base station, so that the synchronization base station uses the first synchronization reference signal and the synchronization source base station performing time synchronization and performing frequency synchronization with the source base station according to the second synchronization reference signal.
结合第一方面， 在第一种可能的实现方式中， 该方法还包括： 所述同步 源基站根据所述同步基站的同步需求， 配置所述第一同步参考信号的图案和 所述第二同步参考信号的图案， 以便所述同步源基站根据所述第一同步参考 信号的图案生成所述第一同步参考信号， 并根据所述第二同步参考信号的图 案生成所述第二同步参考信号。 With reference to the first aspect, in a first possible implementation manner, the method further includes: configuring, by the synchronization source base station, a pattern of the first synchronization reference signal and the pattern of the second synchronization reference signal according to a synchronization requirement of the synchronization base station. A pattern of the reference signal, so that the synchronization source base station generates the first synchronization reference signal according to the pattern of the first synchronization reference signal, and generates the second synchronization reference signal according to the pattern of the second synchronization reference signal.
结合第一方面， 在第二种可能的实现方式中， 该方法还包括： 所述同步 源基站接收基站管理器或者操作管理维护 OAM发送的所述第一同步参考信 号的图案和所述第二同步参考信号的图案， 以便所述同步源基站根据所述第 一同步参考信号的图案生成所述第一同步参考信号， 并根据所述第二同步参 考信号的图案生成所述第二同步参考信号， 其中所述第一同步参考信号的图 案和所述第二同步参考信号的图案由所述基站管理器或者所述 OAM进行配 置。 With reference to the first aspect, in a second possible implementation manner, the method further includes: the synchronization source base station receiving the pattern of the first synchronization reference signal and the pattern of the second synchronization reference signal sent by a base station manager or an operation, management and maintenance OAM. a pattern of the synchronization reference signal, so that the synchronization source base stationa pattern of a synchronization reference signal to generate the first synchronization reference signal, and generate the second synchronization reference signal according to a pattern of the second synchronization reference signal, where the pattern of the first synchronization reference signal and the second The pattern of the synchronization reference signal is configured by the base station manager or the OAM.
结合第一方面， 在第三种可能的实现方式中， 该方法还包括： 所述同步 源基站接收基站管理器或者 OAM发送的同步等级与第一同步参考信号的图 案和 /或第二同步参考信号的图案之间的映射关系；所述同步源基站根据所述 映射关系配置所述第一同步参考信号的图案和所述第二同步参考信号的图 案， 以便所述同步源基站根据所述第一同步参考信号的图案生成所述第一同 步参考信号， 并根据所述第二同步参考信号的图案生成所述第二同步参考信 结合第一方面， 或者上述任一种可能的实现方式， 在第四种可能的实现 方式中， 所述第一同步参考信号的图案和所述第二同步参考信号的图案不 同， 包括： 所述第一同步参考信号的图案和所述第二同步参考信号的图案的 以下信息至少一个不同： 周期、 时频资源和序列资源。 With reference to the first aspect, in a third possible implementation manner, the method further includes: the synchronization source base station receiving the synchronization level sent by the base station manager or the OAM and the pattern of the first synchronization reference signal and/or the second synchronization reference signal A mapping relationship between signal patterns; the synchronization source base station configures the pattern of the first synchronization reference signal and the pattern of the second synchronization reference signal according to the mapping relationship, so that the synchronization source base station configures the pattern of the first synchronization reference signal according to the first A pattern of a synchronization reference signal is used to generate the first synchronization reference signal, and a pattern of the second synchronization reference signal is used to generate the second synchronization reference signal. In combination with the first aspect or any of the above possible implementation manners, in In a fourth possible implementation manner, the pattern of the first synchronization reference signal and the pattern of the second synchronization reference signal are different, including: the pattern of the first synchronization reference signal and the pattern of the second synchronization reference signal Patterns differ in at least one of the following information: period, time-frequency resource and sequence resource.
第二方面， 提供了一种站间同步的方法， 该方法包括： 同步基站接收同 步源基站发送的第一同步参考信号和第二同步参考信号， 所述第一同步参考 信号的图案和所述第二同步参考信号的图案不同； 所述同步基站根据所述第 一同步参考信号与所述同步源基站进行时间同步并且根据所述第二同步参 考信号与所述同步源基站进行频率同步。 In a second aspect, an inter-station synchronization method is provided, the method comprising: a synchronization base station receiving a first synchronization reference signal and a second synchronization reference signal sent by a synchronization source base station, the pattern of the first synchronization reference signal and the The pattern of the second synchronization reference signal is different; the synchronization base station performs time synchronization with the synchronization source base station according to the first synchronization reference signal and performs frequency synchronization with the synchronization source base station according to the second synchronization reference signal.
结合第二方面， 在第一种可能的实现方式中， 该方法还包括： 所述同步 基站获取所述第一同步参考信号的图案和所述第二同步参考信号的图案。 With reference to the second aspect, in a first possible implementation manner, the method further includes: acquiring, by the synchronization base station, a pattern of the first synchronization reference signal and a pattern of the second synchronization reference signal.
结合第二方面或者第二方面的第一种可能的实现方式，在第二种可能的 实现方式中， 该所述根据所述第一同步参考信号与所述同步源基站进行时间 同步， 包括： 根据所述第一同步参考信号和所述第二同步参考信号与所述同 步源基站进行时间同步。 With reference to the second aspect or the first possible implementation manner of the second aspect, in a second possible implementation manner, performing time synchronization with the synchronization source base station according to the first synchronization reference signal includes: Perform time synchronization with the synchronization source base station according to the first synchronization reference signal and the second synchronization reference signal.
结合第二方面或者上述任一种可能的实现方式，在第三种可能的实现方 式中， 所述根据所述第二同步参考信号与所述同步源基站进行频率同步， 包 括： 根据所述第一同步参考信号和所述第二同步参考信号与所述同步源基站 进行频率同步。 With reference to the second aspect or any of the above possible implementation manners, in a third possible implementation manner, performing frequency synchronization with the synchronization source base station according to the second synchronization reference signal includes: according to the first A synchronization reference signal and the second synchronization reference signal perform frequency synchronization with the synchronization source base station.
第三方面， 提供了一种基站， 该基站包括： 生成单元， 用于生成第一同 步参考信号和第二同步参考信号，所述第一同步参考信号的图案和所述第二 同步参考信号的图案不同； 发送单元， 用于将所述第一同步参考信号和所述 第二同步参考信号发送至同步基站， 以便所述同步基站根据所述第一同步参 考信号与所述基站进行时间同步并且根据所述第二同步参考信号与所述基 站进行频率同步。 In a third aspect, a base station is provided, and the base station includes: a generating unit, configured to generate a first simultaneousa synchronous reference signal and a second synchronous reference signal, the pattern of the first synchronous reference signal is different from the pattern of the second synchronous reference signal; a sending unit, configured to transmit the first synchronous reference signal to the second The reference signal is sent to a synchronous base station, so that the synchronous base station performs time synchronization with the base station according to the first synchronization reference signal and performs frequency synchronization with the base station according to the second synchronization reference signal.
结合第三方面，在第一种可能的实现方式中，该基站还包括： 配置单元， 用于根据所述同步基站的同步需求， 配置所述第一同步参考信号的图案和所 述第二同步参考信号的图案， 以便所述基站根据所述第一同步参考信号的图 案生成所述第一同步参考信号， 并根据所述第二同步参考信号的图案生成所 述第二同步参考信号。 With reference to the third aspect, in a first possible implementation manner, the base station further includes: a configuration unit configured to configure the pattern of the first synchronization reference signal and the second synchronization reference signal according to a synchronization requirement of the synchronization base station. a pattern of the reference signal, so that the base station generates the first synchronization reference signal according to the pattern of the first synchronization reference signal, and generates the second synchronization reference signal according to the pattern of the second synchronization reference signal.
结合第三方面，在第二种可能的实现方式中，该基站还包括：接收单元， 用于接收基站管理器或者操作管理维护 OAM发送的所述第一同步参考信号 的图案和所述第二同步参考信号的图案， 以便所述基站根据所述第一同步参 考信号的图案生成所述第一同步参考信号， 并根据所述第二同步参考信号的 图案生成所述第二同步参考信号，其中所述第一同步参考信号的图案和所述 第二同步参考信号的图案由所述基站管理器或者所述 OAM进行配置。 With reference to the third aspect, in a second possible implementation manner, the base station further includes: a receiving unit, configured to receive the pattern of the first synchronization reference signal and the pattern of the second synchronization reference signal sent by a base station manager or an operation management maintenance OAM. a pattern of the synchronization reference signal, so that the base station generates the first synchronization reference signal according to the pattern of the first synchronization reference signal, and generates the second synchronization reference signal according to the pattern of the second synchronization reference signal, wherein The pattern of the first synchronization reference signal and the pattern of the second synchronization reference signal are configured by the base station manager or the OAM.
结合第三方面，在第三种可能的实现方式中，该基站还包括：接收单元， 用于接收基站管理器或者 OAM发送的同步等级与第一同步参考信号的图案 和 /或第二同步参考信号的图案之间的映射关系； 配置单元，用于根据所述映 射关系配置所述第一同步参考信号的图案和所述第二同步参考信号的图案， 以便所述基站根据所述第一同步参考信号的图案生成所述第一同步参考信 号， 并根据所述第二同步参考信号的图案生成所述第二同步参考信号。 With reference to the third aspect, in a third possible implementation manner, the base station further includes: a receiving unit, configured to receive the synchronization level and the pattern of the first synchronization reference signal and/or the second synchronization reference signal sent by the base station manager or the OAM. A mapping relationship between signal patterns; a configuration unit, configured to configure the pattern of the first synchronization reference signal and the pattern of the second synchronization reference signal according to the mapping relationship, so that the base station can synchronize according to the first The first synchronous reference signal is generated from a pattern of reference signals, and the second synchronous reference signal is generated according to the pattern of the second synchronous reference signal.
结合第三方面或者上述任一种可能的实现方式，在第四种可能的实现方 式中， 所述第一同步参考信号和所述第二同步参考信号的图案不同， 包括： 所述第一同步参考信号的图案和所述第二同步参考信号的图案的以下信息 至少一个不同： 周期、 时频资源和序列资源。 With reference to the third aspect or any of the above possible implementation manners, in a fourth possible implementation manner, patterns of the first synchronization reference signal and the second synchronization reference signal are different, including: the first synchronization The pattern of the reference signal is different from the pattern of the second synchronous reference signal in at least one of the following information: period, time-frequency resource, and sequence resource.
第四方面， 提供了一种基站， 该基站包括： 接收单元， 用于接收同步源 基站发送的第一同步参考信号和第二同步参考信号， 所述第一同步参考信号 的图案和所述第二同步参考信号的图案不同； 处理单元， 用于根据所述第一 同步参考信号与所述同步源基站进行时间同步并且根据所述第二同步参考 信号与所述同步源基站进行频率同步。 结合第四方面， 在第一种可能的实现方式中， 所述接收单元， 还用于获 取所述第一同步参考信号的图案和所述第二同步参考信号的图案。 In a fourth aspect, a base station is provided, and the base station includes: a receiving unit, configured to receive a first synchronization reference signal and a second synchronization reference signal sent by a synchronization source base station, the pattern of the first synchronization reference signal and the second synchronization reference signal The patterns of the two synchronization reference signals are different; a processing unit configured to perform time synchronization with the synchronization source base station according to the first synchronization reference signal and perform frequency synchronization with the synchronization source base station according to the second synchronization reference signal. With reference to the fourth aspect, in a first possible implementation manner, the receiving unit is further configured to acquire the pattern of the first synchronization reference signal and the pattern of the second synchronization reference signal.
结合第四方面或者第四方面的第一种可能的实现方式，在第二种可能的 实现方式中， 所述处理单元， 还用于： 根据所述第一同步参考信号和所述第 二同步参考信号与所述同步源基站进行时间同步。 With reference to the fourth aspect or the first possible implementation manner of the fourth aspect, in a second possible implementation manner, the processing unit is further configured to: The reference signal performs time synchronization with the synchronization source base station.
结合第四方面或者上述任一种可能的实现方式，在第三种可能的实现方 式中， 所述处理单元， 还用于： 根据所述第一同步参考信号和所述第二同步 参考信号与所述同步源基站进行频率同步。 With reference to the fourth aspect or any of the foregoing possible implementation manners, in a third possible implementation manner, the processing unit is further configured to: The synchronization source base station performs frequency synchronization.
第五方面， 提供了一种基站， 该基站包括： 处理器和收发电路。 所述处 理器用于生成第一同步参考信号和第二同步参考信号， 所述第一同步参考信 号的图案和所述第二同步参考信号的图案不同。 所述收发电路用于将所述处 理器生成的所述第一同步参考信号和所述第二同步参考信号发送至同步基 站， 以便所述同步基站根据所述第一同步参考信号与该基站进行时间同步并 且根据所述第二同步参考信号与该基站进行频率同步。 In a fifth aspect, a base station is provided, and the base station includes: a processor and a transceiver circuit. The processor is configured to generate a first synchronization reference signal and a second synchronization reference signal, and a pattern of the first synchronization reference signal is different from a pattern of the second synchronization reference signal. The transceiver circuit is used to send the first synchronization reference signal and the second synchronization reference signal generated by the processor to a synchronization base station, so that the synchronization base station can communicate with the base station according to the first synchronization reference signal Time synchronization and frequency synchronization with the base station according to the second synchronization reference signal.
结合第五方面， 在第一种可能的实现方式中， 所述处理器还用于根据所 述同步基站的同步需求， 配置所述第一同步参考信号的图案和所述第二同步 参考信号的图案， 以便所述处理器进一步根据所述第一同步参考信号的图案 生成所述第一同步参考信号， 并根据所述第二同步参考信号的图案生成所述 第二同步参考信号 With reference to the fifth aspect, in a first possible implementation manner, the processor is further configured to configure the pattern of the first synchronization reference signal and the pattern of the second synchronization reference signal according to a synchronization requirement of the synchronization base station. pattern, so that the processor further generates the first synchronization reference signal according to the pattern of the first synchronization reference signal, and generates the second synchronization reference signal according to the pattern of the second synchronization reference signal
结合第五方面， 在第二种可能的实现方式中， 所述收发电路还用于接收 由基站管理器或者 OAM配置的所述第一同步参考信号的图案和所述第二同 步参考信号的图案， 以便所述处理器根据所述第一同步参考信号的图案生成 所述第一同步参考信号， 并根据所述第二同步参考信号的图案生成所述第二 同步参考信号。 With reference to the fifth aspect, in a second possible implementation manner, the transceiver circuit is further configured to receive the pattern of the first synchronization reference signal and the pattern of the second synchronization reference signal configured by a base station manager or an OAM , so that the processor generates the first synchronization reference signal according to the pattern of the first synchronization reference signal, and generates the second synchronization reference signal according to the pattern of the second synchronization reference signal.
结合第五方面， 在第三种可能的实现方式中， 所述收发电路还用于接收 基站管理器或者 OAM 配置的同步等级与第一同步参考信号的图案和 /或第 二同步参考信号的图案之间的映射关系。 所述处理器还用于根据所述映射关 系和该基站的同步等级配置所述第一同步参考信号的图案和所述第二同步 参考信号的图案。 With reference to the fifth aspect, in a third possible implementation manner, the transceiver circuit is further configured to receive the synchronization level configured by the base station manager or the OAM and the pattern of the first synchronization reference signal and/or the pattern of the second synchronization reference signal mapping relationship between them. The processor is further configured to configure the pattern of the first SRS and the pattern of the second SRS according to the mapping relationship and the synchronization level of the base station.
第六方面， 提供了一种基站， 该基站包括： 处理器和收发电路。 所述收 发电路用于接收同步源基站发送的第一同步参考信号和第二同步参考信号， 所述第一同步参考信号的图案和所述第二同步参考信号的图案不同。所述处 理器用于根据所述收发电路接收的所述第一同步参考信号与所述同步源基 站进行时间同步， 并且根据所述收发电路接收的所述第二同步参考信号与所 述同步源基站进行频率同步。 In a sixth aspect, a base station is provided, and the base station includes: a processor and a transceiver circuit. The transceiver circuit is used to receive the first synchronization reference signal and the second synchronization reference signal sent by the synchronization source base station,The pattern of the first SRS is different from the pattern of the second SRS. The processor is configured to perform time synchronization with the synchronization source base station according to the first synchronization reference signal received by the transceiver circuit, and synchronize with the synchronization source base station according to the second synchronization reference signal received by the transceiver circuit Perform frequency synchronization.
结合第六方面， 在第一种可能的实现方式中， 所述收发电路还用于获取 所述第一同步参考信号的图案和所述第二同步参考信号的图案。 With reference to the sixth aspect, in a first possible implementation manner, the transceiver circuit is further configured to acquire the pattern of the first synchronization reference signal and the pattern of the second synchronization reference signal.
结合第六方面或者第六方面的第一种可能的实现方式，在第二种可能的 实现方式中， 所述处理器用于根据所述第一同步参考信号和所述第二同步参 考信号与所述同步源基站进行时间同步。 With reference to the sixth aspect or the first possible implementation manner of the sixth aspect, in a second possible implementation manner, the processor is configured to combine the first synchronization reference signal and the second synchronization reference signal with the The synchronization source base station performs time synchronization.
结合第六方面或者上述任一种可能的实现方式，在第三种可能的实现方 式中， 所述处理器还用于根据所述第一同步参考信号和所述第二同步参考信 号与所述同步源基站进行频率同步。 With reference to the sixth aspect or any one of the foregoing possible implementation manners, in a third possible implementation manner, the processor is further configured to, according to the first synchronization reference signal and the second synchronization reference signal and the The synchronization source base station performs frequency synchronization.
本发明实施例通过将图案不同的第一同步参考信号和第二同步参考信 号发送至同步基站， 使得同步基站能够与同步源基站进行同步， 并且能够同 时满足时间同步和频率同步的需求。 附图说明 In the embodiment of the present invention, the first synchronization reference signal and the second synchronization reference signal with different patterns are sent to the synchronization base station, so that the synchronization base station can be synchronized with the synchronization source base station, and can meet the requirements of time synchronization and frequency synchronization at the same time. Description of drawings
为了更清楚地说明本发明实施例的技术方案， 下面将对实施例或现有技 术描述中所需要使用的附图作筒单地介绍， 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 性劳动性的前提下， 还可以根据这些附图获得其他的附图。 In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings that need to be used in the embodiments or the description of the prior art. Apparently, the drawings in the following description are only of the present invention For some embodiments, those of ordinary skill in the art can also obtain other drawings according to these drawings without paying creative efforts.
图 1是本发明实施例的应用场景的示意图。 FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present invention.
图 2是本发明一个实施例的站间同步的方法的示意图。 FIG. 2 is a schematic diagram of an inter-station synchronization method according to an embodiment of the present invention.
图 3是本发明一个实施例的第一同步参考信号和第二同步参考信号的图 案的示意图的一例。 FIG. 3 is an example of a schematic diagram of a pattern of a first synchronous reference signal and a second synchronous reference signal according to an embodiment of the present invention.
图 4是本发明另一个实施例的第一同步参考信号和第二同步参考信号的 图案的示意图的另一例。 FIG. 4 is another example of a schematic diagram of patterns of a first SRS and a second SRS according to another embodiment of the present invention.
图 5是本发明另一个实施例的第一同步参考信号和第二同步参考信号的 图案的示意图的另一例。 FIG. 5 is another example of a schematic diagram of a pattern of a first SRS and a second SRS according to another embodiment of the present invention.
图 6是本发明另一个实施例的第三同步参考信号的图案的示意图的另一 例。 图 7是本发明另一个实施例的站间同步的方法的示意图。 FIG. 6 is another example of a schematic diagram of a pattern of a third SRS according to another embodiment of the present invention. FIG. 7 is a schematic diagram of a method for inter-station synchronization according to another embodiment of the present invention.
图 8是本发明另一个实施例的站间同步的方法的示意性流程图。 FIG. 8 is a schematic flowchart of a method for inter-station synchronization according to another embodiment of the present invention.
图 9是本发明一个实施例的基站的框图。 Fig. 9 is a block diagram of a base station according to an embodiment of the present invention.
图 10是本发明另一个实施例的基站的框图。 Fig. 10 is a block diagram of a base station according to another embodiment of the present invention.
图 11是本发明另一个实施例的基站的框图。 Fig. 11 is a block diagram of a base station according to another embodiment of the present invention.
图 12是本发明另一个实施例的基站的框图。 具体实施方式 Fig. 12 is a block diagram of a base station according to another embodiment of the present invention. Detailed ways
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行 清楚、 完整地描述， 显然， 所描述的实施例是本发明一部分实施例， 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作出创 造性劳动的前提下所获得的所有其他实施例， 都属于本发明保护的范围。 The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
应理解， 本发明实施例可以适用于各种通信系统， 例如： 全球移动通讯 It should be understood that the embodiments of the present invention may be applicable to various communication systems, for example: global mobile communication
( Global System of Mobile communication, GSM ) 系统、 码分多址（Code Division Multiple Access , CDMA ) 系统、 宽带码分多址（Wideband Code Division Multiple Access, WCDMA )系统、通用分组无线业务（ General Packet Radio Service, GPRS )、 长期演进（ Long Term Evolution, LTE ) 系统、 先进 的长期演进（Advanced long term evolution, LTE-A ) 系统、 通用移动通信系 统 ( Universal Mobile Telecommunication System, UMTS )等。(Global System of Mobile communication, GSM) system, code division multiple access (Code Division Multiple Access, CDMA) system, wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) system, general packet radio service (General Packet Radio Service , GPRS), long term evolution (Long Term Evolution, LTE) system, advanced long term evolution (Advanced long term evolution, LTE-A) system, universal mobile telecommunications system (Universal Mobile Telecommunication System, UMTS), etc.
应理解， 本发明实施例中所述的基站， 可以是 GSM或 CDMA中的基站 It should be understood that the base station described in the embodiment of the present invention may be a base station in GSM or CDMA
( Base Transceiver Station, BTS ), 也可以是 WCDMA中的基站 （ NodeB ), 还可以是 LTE中的 eNB或 e-NodeB , 或者， 也可以是无线局域网 （Wireless Local Area Network, WLAN )接入点（ Access Point, AP ), 本发明对此不作 限定。(Base Transceiver Station, BTS), may also be a base station (NodeB) in WCDMA, may also be an eNB or e-NodeB in LTE, or may also be a wireless local area network (Wireless Local Area Network, WLAN) access point ( Access Point, AP ), which is not limited in the present invention.
图 1是本发明实施例的应用场景的示意图。 图 1的示意图中包含一个宏 基站 101 , 敖基站 102, 敖基站 103和敖基站 104。 FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present invention. The schematic diagram in FIG. 1 includes a macro base station 101, an AO base station 102, an AO base station 103 and an AO base station 104.
本发明实施例中， 站间同步是指不同基站之间实现同步。 如图 1所示， 宏基站 101和微基站 102之间， 微基站 102和微基站 103之间， 以及微基站 In this embodiment of the present invention, inter-station synchronization refers to synchronization between different base stations. As shown in FIG. 1, between the macro base station 101 and the micro base station 102, between the micro base station 102 and the micro base station 103, and the micro base station
103和微基站 104之间都需要站间同步。为了标识不同小区之间的同步状态， 可以定义不同基站之间的同步等级。 通过全球定位系统（Global PositioningBoth 103 and Femtocell 104 need inter-station synchronization. In order to identify the synchronization state between different cells, the synchronization level between different base stations can be defined. Through the Global Positioning System (Global Positioning
System, GPS ),宏基站或者其他外界的同步源实现同步的基站的同步等级为 1 ( stratum- 1 ), 如图 1所示的敖基站 102为同步等级为 1的基站。 通过同步 等级为 1的基站实现同步的另一基站的同步等级为 2, 如图 1所示的微基站 103为同步等级为 2的基站。 同样地， 如图 1所示的微基站 104为同步等级 为 3的基站。System, GPS ), macro base station or other external synchronization sources, the synchronization level of the base station is 1 (stratum-1), the base station 102 shown in FIG. 1 is a base station with a synchronization level of 1. Another base station that achieves synchronization through a base station with a synchronization level of 1 has a synchronization level of 2. The micro base station 103 shown in FIG. 1 is a base station with a synchronization level of 2. Likewise, the micro base station 104 shown in FIG. 1 is a base station with a synchronization level of 3.
为了描述清楚， 本发明实施例中将获取诸如时间同步信息， 频率同步信 息等同步信息的基站称为同步基站，将为同步基站提供同步信息的基站称为 同步源基站。 如图 1所示， 宏基站 101和微基站 102之间实现站间同步时， 宏基站 101为同步源基站，微基站 102为同步基站。微基站 102和微基站 103 之间实现站间同步时， 微基站 102为同步源基站， 微基站 103为同步基站。 微基站 103和微基站 104之间实现站间同步时， 微基站 103为同步源基站， 微基站 104为同步基站。 可见， 同步源基站和同步基站是相对的概念， 一个 基站既可以是同步源基站， 也可以是同步基站， 必须是确定具体的与哪个基 站之间实现站间同步，才能确定某个基站是同步源基站还是同步基站。例如， 如图 1所示的微基站 102, 在微基站 102与宏基站 101实现站间同步时， 该 微基站 102是同步基站。 在微基站 103与微基站 102实现站间同步时， 该微 基站 102是同步源基站。 For clarity of description, in the embodiments of the present invention, a base station that acquires synchronization information such as time synchronization information and frequency synchronization information is called a synchronization base station, and a base station that provides synchronization information for a synchronization base station is called a synchronization source base station. As shown in FIG. 1, when inter-station synchronization is implemented between the macro base station 101 and the micro base station 102, the macro base station 101 is a synchronization source base station, and the micro base station 102 is a synchronization base station. When implementing inter-station synchronization between the micro base station 102 and the micro base station 103, the micro base station 102 is a synchronization source base station, and the micro base station 103 is a synchronization base station. When implementing inter-station synchronization between the micro base station 103 and the micro base station 104, the micro base station 103 is a synchronization source base station, and the micro base station 104 is a synchronization base station. It can be seen that the synchronization source base station and the synchronization base station are relative concepts. A base station can be either a synchronization source base station or a synchronization base station. It is necessary to determine which base station to achieve inter-station synchronization with to determine whether a certain base station is synchronous The source base station is also a sync base station. For example, for the micro base station 102 shown in FIG. 1, when the micro base station 102 and the macro base station 101 implement inter-station synchronization, the micro base station 102 is a synchronous base station. When the micro base station 103 and the micro base station 102 implement inter-station synchronization, the micro base station 102 is a synchronization source base station.
应理解，本发明实施例中的同步源基站和 /或同步基站可能是宏基站，可 能是微基站 ( Micro eNB ), 也可能是微微基站（Pico eNB ), 甚至也可能是 豪微微基站（ Femto eNB ), 等等； 本发明实施例中的不同基站可以属于同一 个运营商， 也可属于不同的运营商， 本发明对此不作限定。 It should be understood that the synchronization source base station and/or the synchronization base station in the embodiment of the present invention may be a macro base station, may be a micro base station (Micro eNB), may also be a pico base station (Pico eNB), or may even be a pico base station (Femto eNB), etc.; different base stations in this embodiment of the present invention may belong to the same operator, or may belong to different operators, which is not limited in the present invention.
在本发明实施例中，将同步基站通过接收同步源基站发送的同步参考信 号实现同步基站与同步源基站的时间同步和频率同步， 称之为站间同步。 其 中同步源基站发送的同步参考信号可称之为站间同步参考信号，也可称之为 网络侦听参考信号 （Network Listening Reference Signal, NLRS ), 也可为别 的参考信号名称， 本发明对此不作限定， 只要可以实现本发明实施例的方法 的参考信号均属于本发明的保护范围。 In the embodiment of the present invention, the synchronization base station realizes the time synchronization and frequency synchronization between the synchronization base station and the synchronization source base station by receiving the synchronization reference signal sent by the synchronization source base station, which is called inter-station synchronization. The synchronization reference signal sent by the synchronization source base station may be referred to as an inter-station synchronization reference signal, or may be referred to as a network listening reference signal (Network Listening Reference Signal, NLRS), or may be another reference signal name. This is not limited, as long as the reference signal that can implement the method in the embodiment of the present invention belongs to the protection scope of the present invention.
例如， 当微基站 102需要与宏基站 101实现站间同步时， 微基站 102作 为同步基站要接收作为同步源基站的宏基站 101发送的同步参考信号。具体 地， 宏基站 101要先发送携带同步信息的同步参考信号至微基站 102, 随后 微基站 102从接收到的这一个同步参考信号中获得时间同步信息和频率同步 信息。 也就是说， 微基站 102想要实现时间同步和频率同步， 所利用的承载 同步信息的同步参考信号的图案是一样的， 由于满足时间同步和频率同步的 需求时对同步参考信号的图案的要求是不一样的， 这样就导致了微基站 102 利用同一个同步参考信号的图案实现站间同步时不能同时满足时间同步和 频率同步的需求。 For example, when the micro base station 102 needs to achieve inter-station synchronization with the macro base station 101, the micro base station 102 as a synchronization base station needs to receive the synchronization reference signal sent by the macro base station 101 as a synchronization source base station. Specifically, the macro base station 101 first sends a synchronization reference signal carrying synchronization information to the micro base station 102, and then the micro base station 102 obtains time synchronization information and frequency synchronization information from the received synchronization reference signal. That is to say, if the micro base station 102 wants to realize time synchronization and frequency synchronization, the bearer usedThe pattern of the synchronization reference signal of the synchronization information is the same, because the requirements for the pattern of the synchronization reference signal are different when the requirements of time synchronization and frequency synchronization are met, which leads to the micro base station 102 using the same pattern of the synchronization reference signal The requirements of time synchronization and frequency synchronization cannot be satisfied at the same time when inter-station synchronization is realized.
另外， 微基站 102在接收该同步参考信号时， 如果微基站 102向其服务 的用户设备（User Equipment, UE ) 105发送数据的发送频带与接收该同步 参考信号的接收频带之间不满足双工间隔，也就是说微基站 102不能同时接 收该同步参考信号和向 UE 105发送数据，那么微基站 102必须先中断与 UE 105之间的数据传输， 才能进一步完成站间同步， 这里将微基站 102中断与 UE 105之间的数据传输时间称为站间同步开销。 也就是说， 在实现站间同 步时， 需要的站间同步开销比较大。 In addition, when the micro base station 102 receives the synchronization reference signal, if the transmission frequency band where the micro base station 102 sends data to the user equipment (User Equipment, UE) 105 it serves and the reception frequency band that receives the synchronization reference signal do not satisfy duplex In other words, the micro base station 102 cannot receive the synchronization reference signal and send data to the UE 105 at the same time, then the micro base station 102 must first interrupt the data transmission with the UE 105 to further complete the inter-station synchronization. Here, the micro base station 102 The data transfer time between the interrupt and the UE 105 is called inter-station synchronization overhead. That is to say, when implementing inter-station synchronization, the required inter-station synchronization overhead is relatively large.
图 2是本发明实施例的站间同步的方法的示意图。图 2所示的方法包括： FIG. 2 is a schematic diagram of a method for inter-station synchronization according to an embodiment of the present invention. The methods shown in Figure 2 include:
201 , 同步源基站生成第一同步参考信号和第二同步参考信号， 该第一 同步参考信号的图案和该第二同步参考信号的图案不同。201. A synchronization source base station generates a first synchronization reference signal and a second synchronization reference signal, where a pattern of the first synchronization reference signal is different from a pattern of the second synchronization reference signal.
202, 同步源基站将该第一同步参考信号和该第二同步参考信号发送至 同步基站， 以便该同步基站根据该第一同步参考信号与该同步源基站进行时 间同步并且根据该第二同步参考信号与该同步源基站进行频率同步。 202. The synchronization source base station sends the first synchronization reference signal and the second synchronization reference signal to a synchronization base station, so that the synchronization base station performs time synchronization with the synchronization source base station according to the first synchronization reference signal and according to the second synchronization reference The signal is frequency synchronized with the synchronization source base station.
本发明实施例通过将图案不同的第一同步参考信号和第二同步参考信 号发送至同步基站， 使得同步基站能够与同步源基站进行同步， 并且能够同 时满足时间同步和频率同步的需求。 In the embodiment of the present invention, the first synchronization reference signal and the second synchronization reference signal with different patterns are sent to the synchronization base station, so that the synchronization base station can be synchronized with the synchronization source base station, and can meet the requirements of time synchronization and frequency synchronization at the same time.
本发明实施例中， 同步参考信号的图案包括同步参考信号的周期， 同步 参考信号的时频资源和同步参考信号的序列资源。该第一同步参考信号的图 案和该第二同步参考信号的图案不同， 是指， 该第一同步参考信号和该第二 同步参考信号的周期， 时频资源和序列资源至少有一个不同。 In the embodiment of the present invention, the pattern of the SRS includes the period of the SRS, the time-frequency resource of the SRS and the sequence resource of the SRS. The pattern of the first SRS is different from the pattern of the second SRS, which means that at least one of the periods, time-frequency resources and sequence resources of the first SRS and the second SRS is different.
应注意， 本发明实施例中的时频资源可用资源元素 （ Resource Element, It should be noted that the available resource element (Resource Element,
RE )来表示， 也可用资源块（ Resource Block, RB )来表示， 也可用其他的 形式来表示， 本发明对此不作限定。RE), may also be represented by a resource block (Resource Block, RB), or may be represented in other forms, which is not limited in the present invention.
本发明实施例中的时频资源包括时间资源和频率资源。其中的时间资源 是指一个时间单位的整数倍， 这里的一个时间单位可以是一个正交频分复用 ( Orthogonal Frequency Division Multiplexing , OFDM )符号, 也可以是一个 时隙 （slot ), 也可以是一个子帧 （subframe ), 也可以是一个无线帧 （radio frame ), 或者也可以是其他的时间单位， 本发明对此不作限定。 其中的频率 资源是指一个子载波（subcarrier ) 的整数倍。 The time-frequency resources in the embodiments of the present invention include time resources and frequency resources. The time resource refers to an integer multiple of a time unit, where a time unit may be an Orthogonal Frequency Division Multiplexing (OFDM) symbol, or a time slot (slot), or A subframe (subframe), can also be a radio frame (radio frame ), or other time units, which are not limited in the present invention. The frequency resource refers to an integer multiple of a subcarrier (subcarrier).
Zadoff-Chu序列生成的信号， 或者是由机器生成序列生成的信号。 具体的， 本发明实施例中的序列资源可以是公共参考信号 （ Common Reference Signal, CRS ), 也可以是信道状态信息参考信号 （ Channel State Information Reference Signal, CSI-RS ), 也可以是定位参考信号 （Positioning Reference Signal, PRS ), 也可以是发现参考信号（ Discovery Reference Signal, DRS ), 也可以是多播单频网参考信号 （Multi-Broadcast Single-Frequency Network Reference Signal, MBSFN RS ) ,也可以是其他的信号，本发明对此不作限定。Signals generated by Zadoff-Chu sequences, or signals generated by machine-generated sequences. Specifically, the sequence resource in the embodiment of the present invention may be a common reference signal (Common Reference Signal, CRS), or a channel state information reference signal (Channel State Information Reference Signal, CSI-RS), or a positioning reference signal (Positioning Reference Signal, PRS ), may also be a Discovery Reference Signal (Discovery Reference Signal, DRS), may also be a Multi-Broadcast Single-Frequency Network Reference Signal (Multi-Broadcast Single-Frequency Network Reference Signal, MBSFN RS ), may also be Other signals are not limited in the present invention.
图 3本发明一个实施例的第一同步参考信号和第二同步参考信号的图案 的示意图的一例。 为了描述方便， 图 3示出的只是一个周期的图案， 其中横 轴表示时间， 纵轴表示频率。 如图 3所示， 第一同步参考信号和第二同步参 考信号的时间周期不同， 并且时频资源也不同， 具体地， 第一同步参考信号 的周期小于第二同步参考信号的周期， 第一同步参考信号具有一个时间单 位， 第二同步参考信号具有三个时间单位， 并且该第一同步参考信号和第二 同步参考信号的时间资源有部分重合。 应注意， 图 3中的阴影只是示意性的 描述， 例如， 假设其中的时间单位是一个子帧， 每个子帧有两个时隙， 阴影 并不代表时频资源占满了子帧中的全部的 RE。 具体地， 第一同步参考信号 占用一个子帧， 表示第一同步参考信号占用了该子帧的多个离散或连续的 RE,第二同步参考信号占用三个连续的子帧，表示第二同步参考信号分别占 用了这三个子帧的多个离散或连续的 RE。 并且本发明实施例所指的该第一 同步参考信号和第二同步参考信号的时间资源有部分重合，仅仅是指从时间 轴的角度看， 两者所占用的子帧是重合的， 该第一同步参考信号和该第二同 步参考信号在该重合的时间资源上所占用的 RE可以是相同的， 也可以是不 同的， 本发明对此不作限定。 Fig. 3 is an example of a schematic diagram of patterns of the first synchronization reference signal and the second synchronization reference signal according to an embodiment of the present invention. For the convenience of description, FIG. 3 only shows a periodic pattern, where the horizontal axis represents time, and the vertical axis represents frequency. As shown in FIG. 3, the time periods of the first SRS and the second SRS are different, and the time-frequency resources are also different. Specifically, the period of the first SRS is shorter than the period of the second SRS, and the first The SRS has one time unit, the second SRS has three time units, and time resources of the first SRS and the second SRS partially overlap. It should be noted that the hatching in FIG. 3 is only a schematic description. For example, assuming that the time unit therein is a subframe, and each subframe has two time slots, the hatching does not mean that the time-frequency resources occupy all of the subframes. The RE. Specifically, the first synchronization reference signal occupies one subframe, indicating that the first synchronization reference signal occupies multiple discrete or continuous REs of the subframe, and the second synchronization reference signal occupies three consecutive subframes, indicating that the second synchronization The reference signals respectively occupy multiple discrete or continuous REs in the three subframes. And the time resources of the first SRS and the second SRS referred to in the embodiment of the present invention partially overlap, just means that from the perspective of the time axis, the subframes occupied by the two are overlapped, the first REs occupied by the first SRS and the second SRS on the overlapping time resource may be the same or different, which is not limited in the present invention.
图 4本发明另一个实施例的第一同步参考信号和第二同步参考信号的图 案的示意图的另一例。 仍然只是示出了一个周期的图案。 如图 4所示， 第一 同步参考信号和第二同步参考信号的周期不同， 并且时频资源也不同。 具体 地， 第一同步参考信号的周期小于第二同步参考信号的周期， 第一同步参考 信号具有一个时间单位， 第二同步参考信号具有连续的三个时间单位， 并且 第一同步参考信号和第二同步参考信号的时间资源没有重合。 应注意， 图 4 中的阴影是示意性的， 具体描述可以参见图 3的表述， 为避免重复， 这里不 再赘述。 Fig. 4 is another example of a schematic diagram of a pattern of a first synchronous reference signal and a second synchronous reference signal according to another embodiment of the present invention. Still only one periodic pattern is shown. As shown in FIG. 4, periods of the first SRS and the second SRS are different, and time-frequency resources are also different. Specifically, the period of the first synchronous reference signal is smaller than the period of the second synchronous reference signal, the first synchronous reference signal has one time unit, the second synchronous reference signal has three consecutive time units, andTime resources of the first SRS and the second SRS do not overlap. It should be noted that the shading in FIG. 4 is schematic, and the specific description may refer to the expression in FIG. 3, and details are not repeated here to avoid repetition.
图 5是本发明另一个实施例的第一同步参考信号和第二同步参考信号的 图案的示意图的另一例。 仍然只是示出了一个周期的图案。 如图 5所示， 第 一同步参考信号和第二同步参考信号的周期不同， 并且时频资源也不同。 具 体地， 第一同步参考信号的周期小于第二同步参考信号的周期， 第一同步参 考信号具有一个时间单位， 第二同步参考信号具有三个时间单位， 并且第一 同步参考信号和第二同步参考信号的时间资源有重合，但是第二同步参考信 号的时间资源不是连续的。 另外， 图 5中的阴影也是示意性的， 具体描述可 以参见图 3的表述， 为避免重复， 这里不再赘述。 FIG. 5 is another example of a schematic diagram of a pattern of a first SRS and a second SRS according to another embodiment of the present invention. Still only one periodic pattern is shown. As shown in FIG. 5, periods of the first SRS and the second SRS are different, and time-frequency resources are also different. Specifically, the period of the first synchronous reference signal is smaller than the period of the second synchronous reference signal, the first synchronous reference signal has one time unit, the second synchronous reference signal has three time units, and the first synchronous reference signal and the second synchronous The time resources of the reference signals overlap, but the time resources of the second synchronous reference signal are not continuous. In addition, the shading in FIG. 5 is also schematic. For specific description, please refer to the expression in FIG. 3, and to avoid repetition, details are not repeated here.
可选地， 作为一个实施例， 如图 3至图 5中的任一图所示， 如果该第一 同步参考信号和该第二同步参考信号采用的序列资源相同， 例如都是 CRS, 但是第一同步参考信号在第一同步参考信号的周期内占用了一个子帧， 即第 一同步参考信号根据现有规定的 CRS在一个子帧内的时频资源映射位置占 用了对应的时频资源位置； 第二同步参考信号在第二同步参考信号的周期内 占用了三个连续或不连续的子帧， 其中第二同步参考信号在每个子帧内占用 的时频资源位置都与第一同步参考信号在一个子帧内占用的时频资源位置 相同。 也就是说， 该第二同步参考信号在其三个连续或不连续的子帧中的每 个子帧中所占用的 RE与该第一同步参考信号在其一个子帧中所占用的 RE 是相同的。 Optionally, as an embodiment, as shown in any one of FIGS. A SRS occupies one subframe within the period of the first SRS, that is, the first SRS occupies the corresponding time-frequency resource location in a subframe according to the time-frequency resource mapping position of the CRS specified in the existing ; The second synchronization reference signal occupies three consecutive or discontinuous subframes within the period of the second synchronization reference signal, wherein the time-frequency resource position occupied by the second synchronization reference signal in each subframe is the same as that of the first synchronization reference signal Signals occupy the same time-frequency resource position within a subframe. That is to say, the REs occupied by the second SRS in each of its three consecutive or discontinuous subframes are the same as the REs occupied by the first SRS in one of its subframes of.
应理解， 图 3至图 5只是第一同步参考信号和第二同步参考信号的图案 的一些示意性例子。 只要第一同步参考信号和第二同步参考信号具有不同的 图案并且可以用于进行站间同步， 均属于本发明的保护范围。 例如， 第一同 步参考信号和第二同步参考信号可以具有相同的周期和不同的时频资源。再 例如， 第一同步参考信号和第二同步参考信号可以同时具有不连续的时间资 源。 另外， 图 3至图 5中第一同步参考信号和第二同步参考信号具有的时间 单位的个数仅是示意性的， 仅是为了描述方便， 本发明对具体的时间单位的 个数不作限定。 It should be understood that FIGS. 3 to 5 are only some schematic examples of the patterns of the first SRS and the second SRS. As long as the first SRS and the second SRS have different patterns and can be used for inter-station synchronization, they all belong to the protection scope of the present invention. For example, the first SRS and the second SRS may have the same period and different time-frequency resources. For another example, the first SRS and the second SRS may have discontinuous time resources at the same time. In addition, the number of time units of the first synchronization reference signal and the second synchronization reference signal in FIGS. .
可选地， 作为一个实施例， 在步骤 201之前， 该方法还可包括： 同步源 基站根据该同步基站的同步需求， 配置该第一同步参考信号的图案和该第二 同步参考信号的图案， 以便该同步源基站根据该第一同步参考信号的图案生 成该第一同步参考信号， 并根据该第二同步参考信号的图案生成该第二同步 参考信号。 Optionally, as an embodiment, before step 201, the method may further include: the synchronization source base station configures the pattern of the first synchronization reference signal and the pattern of the second synchronization reference signal according to the synchronization requirements of the synchronization base station.a pattern of the synchronization reference signal, so that the synchronization source base station generates the first synchronization reference signal according to the pattern of the first synchronization reference signal, and generates the second synchronization reference signal according to the pattern of the second synchronization reference signal.
其中， 该同步基站的同步需求可以由同步基站的特性， 同步基站中影响 同步性能的特性， 同步基站和同步源基站之间的信道特性等因素来决定。 Wherein, the synchronization requirements of the synchronization base station may be determined by factors such as characteristics of the synchronization base station, characteristics affecting synchronization performance in the synchronization base station, and channel characteristics between the synchronization base station and the synchronization source base station.
可选地， 作为另一个实施例， 同步源基站可以根据同步基站对时间同步 的同步需求来配置第一同步参考信号的图案，可以根据同步基站对频率同步 的同步需求来配置第二同步参考信号的图案。 Optionally, as another embodiment, the synchronization source base station may configure the pattern of the first synchronization reference signal according to the synchronization requirement of the synchronization base station for time synchronization, and may configure the second synchronization reference signal according to the synchronization requirement of the synchronization base station for frequency synchronization picture of.
应注意， 本发明实施例中， 两个同步等级相同的同步源基站， 它们各自 进行配置第一同步参考信号的图案和第二同步参考信号的图案， 两个同步源 基站之间互不干扰， 并且它们各自进行配置的第一同步参考信号的图案和第 二同步参考信号的图案可以相同， 也可以不同。 It should be noted that in the embodiment of the present invention, two synchronization source base stations with the same synchronization level configure the pattern of the first synchronization reference signal and the pattern of the second synchronization reference signal respectively, and the two synchronization source base stations do not interfere with each other. And the pattern of the first SRS and the pattern of the second SRS configured by them may be the same or different.
这样， 本发明实施例中， 同步源基站根据同步基站对时间同步和频率同 步的不同需求分别配置第一同步参考信号的图案和第二同步参考信号的图 案， 既能满足同步基站与同步源基站进行时间同步的需求， 又能满足同步基 站与同步源基站进行频率同步的需求， 并且还能够减小同步基站的站间同步 开销， 更进一步地， 可以减少同步基站在同步过程中对其服务的用户设备的 影响。 In this way, in the embodiment of the present invention, the synchronization source base station configures the pattern of the first synchronization reference signal and the pattern of the second synchronization reference signal respectively according to the different requirements of the synchronization base station for time synchronization and frequency synchronization, which can satisfy both the synchronization requirements of the synchronization base station and the synchronization source base station. The requirements for time synchronization can meet the requirements for frequency synchronization between the synchronization base station and the synchronization source base station, and can also reduce the inter-station synchronization overhead of the synchronization base station. Further, it can reduce the service requirements of the synchronization base station during the synchronization process. Impact on User Equipment.
可选地， 作为另一个实施例， 在步骤 201之前， 该方法还可包括： 同步 源基站接收由基站管理器或者操作管理维护 （Operation Administration Maintenance, OAM ) 配置的该第一同步参考信号的图案和该第二同步参考 信号的图案， 以便该同步源基站根据该第一同步参考信号的图案生成该第一 同步参考信号， 并根据该第二同步参考信号的图案生成该第二同步参考信 可选地， 作为另一个实施例， 在步骤 201之前， 该方法还可包括： 同步 源基站接收基站管理器或者 ΟΑΜ配置的同步等级与第一同步参考信号的图 案和 /或第二同步参考信号的图案之间的映射关系，并进一步根据同步源基站 自己的同步等级和该映射关系配置该第一同步参考信号的图案和该第二同 步参考信号图案， 以便该同步源基站根据该第一同步参考信号的图案生成该 第一同步参考信号， 并根据该第二同步参考信号的图案生成该第二同步参考 信号。 可选地， 作为另一个实施例， 在步骤 201之前， 该方法还可包括： 同步 源基站根据标准预定义的同步等级与第一同步参考信号的图案和 /或第二同 步参考信号的图案之间的映射关系， 并进一步根据同步源基站自己的同步等 级和该映射关系配置该第一同步参考信号的图案和该第二同步参考信号图 案， 以便该同步源基站根据该第一同步参考信号的图案生成该第一同步参考 信号， 并根据该第二同步参考信号的图案生成该第二同步参考信号。 Optionally, as another embodiment, before step 201, the method may further include: the synchronization source base station receiving the pattern of the first synchronization reference signal configured by the base station manager or operation administration maintenance (OAM) and the pattern of the second synchronization reference signal, so that the synchronization source base station generates the first synchronization reference signal according to the pattern of the first synchronization reference signal, and generates the second synchronization reference signal according to the pattern of the second synchronization reference signal Optionally, as another embodiment, before step 201, the method may further include: the synchronization source base station receiving the synchronization level configured by the base station manager or the OAM and the pattern of the first synchronization reference signal and/or the pattern of the second synchronization reference signal The mapping relationship between the patterns, and further configure the pattern of the first synchronization reference signal and the second synchronization reference signal pattern according to the synchronization level of the synchronization source base station itself and the mapping relationship, so that the synchronization source base station can The pattern of signals generates the first synchronization reference signal, and the second synchronization reference signal is generated according to the pattern of the second synchronization reference signal. Optionally, as another embodiment, before step 201, the method may further include: the synchronization source base station according to a standard predefined synchronization level and a pattern of the first synchronization reference signal and/or a pattern of the second synchronization reference signal and further configure the pattern of the first synchronization reference signal and the pattern of the second synchronization reference signal according to the synchronization level of the synchronization source base station itself and the mapping relationship, so that the synchronization source base station The first SRS is generated by a pattern, and the second SRS is generated according to the pattern of the second SRS.
可选地， 作为另一个实施例， 在步骤 201中， 同步源基站根据该第一同 步参考信号的图案生成该第一同步参考信号， 并根据该第二同步参考信号的 图案生成该第二同步参考信号。 其中， 该第一同步参考信号的图案和该第二 同步参考信号的图案可以是标准预定义的， 可以是同步源基站配置的， 也可 以是同步源基站从基站管理器或者 OAM获取的， 本发明对此不作限定。 Optionally, as another embodiment, in step 201, the synchronization source base station generates the first synchronization reference signal according to the pattern of the first synchronization reference signal, and generates the second synchronization reference signal according to the pattern of the second synchronization reference signal. reference signal. Wherein, the pattern of the first synchronization reference signal and the pattern of the second synchronization reference signal may be predefined by the standard, may be configured by the synchronization source base station, or may be acquired by the synchronization source base station from the base station manager or OAM. The invention is not limited thereto.
可选地， 作为另一个实施例， 在步骤 202中， 同步源基站还可将同步等 级与第一同步参考信号的图案和 /或第二同步参考信号的图案之间的映射关 系以及该同步源基站的同步等级发送至同步基站， 以便该同步基站根据该映 射关系和该同步等级确定该第一同步参考信号的图案和该第二同步参考信 号的图案。 Optionally, as another embodiment, in step 202, the synchronization source base station may also use the mapping relationship between the synchronization level and the pattern of the first synchronization reference signal and/or the pattern of the second synchronization reference signal and the synchronization source The synchronization level of the base station is sent to the synchronization base station, so that the synchronization base station determines the pattern of the first synchronization reference signal and the pattern of the second synchronization reference signal according to the mapping relationship and the synchronization level.
可选地， 作为另一个实施例， 在步骤 202中， 该同步源基站还可将该同 步源基站的同步等级发送给同步基站， 以便同步基站根据该同步等级和从基 站管理器或 OAM接收的映射关系确定该第一同步参考信号的图案和该第二 同步参考信号的图案。 Optionally, as another embodiment, in step 202, the synchronization source base station can also send the synchronization level of the synchronization source base station to the synchronization base station, so that the synchronization base station can use the synchronization level and the synchronization level received from the base station manager or OAM The mapping relationship determines the pattern of the first SRS and the pattern of the second SRS.
可选地， 作为另一个实施例， 在步骤 202中， 该同步源基站可以直接将 第一同步参考信号的图案和第二同步参考信号的图案发送给同步基站。 Optionally, as another embodiment, in step 202, the synchronization source base station may directly send the pattern of the first synchronization reference signal and the pattern of the second synchronization reference signal to the synchronization base station.
可选地， 作为另一个实施例， 同步源基站还可通过指示信令的形式将上 述映射关系和该同步源基站的同步等级， 或者将该同步源基站的同步等级， 或者将该第一同步参考信号的图案和该第二同步参考信号的图案发送至同 步基站， 其中该指示信令可以是回程（backhaul )信令， 也可以是空口信令， 或者也可以是其他的信令形式， 本发明对此不作限定。 Optionally, as another embodiment, the synchronization source base station may also transmit the above mapping relationship and the synchronization level of the synchronization source base station, or the synchronization level of the synchronization source base station, or the first synchronization level, in the form of indication signaling. The pattern of the reference signal and the pattern of the second synchronous reference signal are sent to the synchronous base station, where the indication signaling may be backhaul (backhaul) signaling, air interface signaling, or other signaling forms. The invention is not limited thereto.
可选地， 作为另一个实施例， 在步骤 201中， 该同步源基站还可同时生 成冗余参考信号，该冗余参考信号可以与该第一同步参考信号和该第二同步 参考信号一起发送到同步基站， 例如， 可以在与第一同步参考信号相邻的时 间资源上发送。 这样， 可使同步基站在根据第一同步参考信号和第二同步参 考信号进行同步时， 如果时间同步或者频率同步的同步性能的需求没有满 足， 可以根据该冗余参考信号进行失步判断， 进一步地， 同步基站可以根据 该失步判断的结果来确定是否需要重新确定同步源基站。 可选地， 该冗余参 考信号也可不与第一参考信号和第二参考信号一起发送到同步基站， 而只是 先预留在同步源基站中。 而后， 在同步基站的同步性能需求没有满足时， 再 发送至同步基站以使同步基站根据该冗余参考信号进行失步判断。 Optionally, as another embodiment, in step 201, the synchronization source base station may also simultaneously generate a redundant reference signal, and the redundant reference signal may be sent together with the first synchronization reference signal and the second synchronization reference signal To the synchronous base station, for example, it may transmit on the time resource adjacent to the first synchronous reference signal. In this way, the synchronous base station can be configured according to the first synchronous reference signal and the second synchronous reference signalWhen the reference signal is synchronized, if the synchronization performance requirements of time synchronization or frequency synchronization are not met, the out-of-synchronization judgment can be performed according to the redundant reference signal. Further, the synchronous base station can determine whether it needs to re-synchronize Determine the synchronization source base station. Optionally, the redundant reference signal may not be sent to the synchronization base station together with the first reference signal and the second reference signal, but is only reserved in the synchronization source base station. Then, when the synchronization performance requirement of the synchronous base station is not met, it is sent to the synchronous base station so that the synchronous base station can judge out-of-synchronization according to the redundant reference signal.
可选地， 作为另一个实施例， 在步骤 201中， 同步源基站可生成第三同 步参考信号， 该第三同步参考信号可为以上所述的第一同步参考信号和第二 同步参考信号的叠加。 Optionally, as another embodiment, in step 201, the synchronization source base station may generate a third synchronization reference signal, and the third synchronization reference signal may be the above-mentioned first synchronization reference signal and second synchronization reference signal overlay.
其中， 该第三同步参考信号的周期可以是满足频率同步稳定度所需要的 最小时间， 这里的频率同步稳定度是指， 同步基站利用第三同步参考信号的 一个周期内的第三同步参考信号的全部或部分进行频率同步所能达到的频 率同步误差， 以及在下一个第三同步参考信号的周期到来之前， 也可以满足 频率同步的需求。 或者， 该第三同步参考信号的周期也可以是满足时间同步 稳定度所需要的最小时间，对于时间同步稳定度的理解类似于对频率同步稳 定度的理解， 此处不再赘述。 或者， 该第三同步参考信号的周期也可以是满 足频率同步稳定度所需要的最小时间和满足时间同步稳定度所需要的最小 时间的组合， 例如可以是满足频率同步稳定度所需要的最小时间和满足时间 同步稳定度所需要的最小时间的最小公倍数或该最小公倍数的整数倍， 或 者， 该第三同步参考信号的周期也可以是其他数值， 本发明对此不作限定。 Wherein, the period of the third synchronization reference signal may be the minimum time required to satisfy the frequency synchronization stability, where the frequency synchronization stability refers to that the synchronization base station uses the third synchronization reference signal within one period of the third synchronization reference signal The frequency synchronization error that can be achieved by performing all or part of the frequency synchronization, and before the next cycle of the third synchronization reference signal arrives, can also meet the frequency synchronization requirements. Alternatively, the period of the third synchronization reference signal may also be the minimum time required to satisfy the time synchronization stability, and the understanding of the time synchronization stability is similar to the understanding of the frequency synchronization stability, and will not be repeated here. Alternatively, the period of the third synchronization reference signal may also be a combination of the minimum time required to meet the frequency synchronization stability and the minimum time required to meet the time synchronization stability, for example, it may be the minimum time required to meet the frequency synchronization stability and the least common multiple of the minimum time required to meet the time synchronization stability or an integer multiple of the least common multiple, or the period of the third synchronization reference signal may also be other values, which are not limited in the present invention.
另外， 在第三同步参考信号的一个周期内， 该第三同步参考信号的图案 是不均匀的。也即，该第三同步参考信号在一个周期内的时间单元和 /或频率 单元的分布是不均匀的， 或者该第三同步参考信号在一个周期内的不同时间 单元上的时频资源和 /或序列资源是不相同的。例如， 由前述对第一同步参考 信号和第二同步参考信号的描述可知， 该第三同步参考信号可占用多个不连 续的时间单元， 并且不连续的时间单元之间的间隔是不相同的； 或者， 该第 三同步参考信号在一个周期中的时间资源可具有多个时间单位， 并且该多个 时间单位中至少有两个不同的时间单位上的时频资源和 /或序列资源是不同 的。 In addition, within one period of the third synchronous reference signal, the pattern of the third synchronous reference signal is non-uniform. That is, the distribution of time units and/or frequency units of the third synchronization reference signal in one cycle is uneven, or the time-frequency resources and/or frequency resources of the third synchronization reference signal on different time units in one cycle or sequence resources are not the same. For example, it can be seen from the foregoing description of the first SRS and the second SRS that the third SRS may occupy multiple discontinuous time units, and the intervals between the discontinuous time units are different. or, the time resource of the third synchronization reference signal in one cycle may have multiple time units, and the time-frequency resources and/or sequence resources on at least two different time units in the multiple time units are different of.
进一步地， 在步骤 202中， 同步源基站可将该第三同步参考信号发送至 同步基站， 以便该同步基站根据该第三同步参考信号与该同步源基站进行时 间同步和频率同步。 Further, in step 202, the synchronization source base station may send the third synchronization reference signal to the synchronization base station, so that the synchronization base station performs time synchronization with the synchronization source base station according to the third synchronization reference signalInter-synchronization and frequency synchronization.
图 6是本发明另一个实施例的第三同步参考信号的图案的示意图的另一 例。 图 6中所示的第三同步参考信号是图 6中所示的第一同步参考信号的图 6中的所示的第二同步参考信号的叠加。 其中， 第一同步参考信号和第二同 步参考信号的周期相同。 第一同步参考信号占用四个不连续的时间单元， 并 且该四个不连续的时间单元在一个周期内的分布是不均匀的， 也就是说， 该 元占用三个连续的时间单元。 并且第一同步参考信号在一个周期中的第一个 时间单元与第二同步参考信号在一个周期中的第一个时间单元在时间轴上 是重合的。 FIG. 6 is another example of a schematic diagram of a pattern of a third SRS according to another embodiment of the present invention. The third SRS shown in FIG. 6 is the superposition of the first SRS shown in FIG. 6 and the second SRS shown in FIG. 6 . Wherein, the periods of the first synchronization reference signal and the second synchronization reference signal are the same. The first SRS occupies four discontinuous time units, and the distribution of the four discontinuous time units in one period is uneven, that is, the unit occupies three consecutive time units. And the first time unit in one cycle of the first SRS coincides with the first time unit in one cycle of the second SRS on the time axis.
例如， 图 6所示的第三同步参考信号的周期与第一同步参考信号的周期 和第二同步参考信号的周期相同， 并且， 该第三同步参考信号的图案是不均 匀的。具体地，图 6中所示的第三同步参考信号占用 6个不连续的时间单元， 不连续的时间单元之间的时间间隔是不相同的， 并且这 6个时间单元中至少 三同步参考信号的第一个时间单元和第二个时间单元的时频资源是不同的。 For example, the cycle of the third SRS shown in FIG. 6 is the same as the cycle of the first SRS and the cycle of the second SRS, and the pattern of the third SRS is uneven. Specifically, the third synchronous reference signal shown in FIG. 6 occupies 6 discontinuous time units, and the time intervals between discontinuous time units are different, and at least three synchronous reference signals in these 6 time units The time-frequency resources of the first time unit and the second time unit of are different.
应注意， 图 6只是对第三同步参考信号的描述的一例， 本发明对第三同 步参考信号的具体图案不作限定，对叠加成第三同步参考信号的第一同步参 考信号和第二同步参考信号的图案也不作限定。 例如， 叠加成第三同步参考 信号的第一同步参考信号和第二同步参考信号可以具有相同的周期， 或者不 同的周期。例如， 叠加成第三同步参考信号的第一同步参考信号和 /或第二同 步参考信号可以具有一个时间单元，可以具有多个连续的时间单元或者多个 离散的时间单元。 本发明对此不作限定。 It should be noted that FIG. 6 is only an example of the description of the third SRS, and the present invention does not limit the specific pattern of the third SRS. For the first SRS and the second SRS superimposed into the third SRS, The pattern of the signal is also not limited. For example, the first SRS and the second SRS superimposed into the third SRS may have the same period or different periods. For example, the first SRS and/or the second SRS superimposed into the third SRS may have one time unit, may have multiple continuous time units or multiple discrete time units. The present invention is not limited thereto.
应注意， 本发明实施例对第一同步参考信号和第二同步参考信号的参考 信号格式不作限定。 例如， 可以是 CRS, 也可以是 CSI-RS, 也可以是 PRS, 也可以是 DRS, 也可以是 MBSFN RS, 也可以是其他能够提供同步信息的 信号， 本发明对此不作限定。 It should be noted that the embodiment of the present invention does not limit the reference signal format of the first synchronization reference signal and the second synchronization reference signal. For example, it may be a CRS, a CSI-RS, a PRS, a DRS, an MBSFN RS, or other signals capable of providing synchronization information, which is not limited in the present invention.
本发明实施例对第一同步参考信号和第二同步参考信号的场景不作限 定。 例如， 对于多载波场景， 若同步源基站上部署了多个载波， 那么不同载 波上对应的第一同步参考信号和 /或第二同步参考信号可以相同， 也可以不 同。再例如， 对于开关场景， 同步源基站会根据承载的业务负载情况和 /或经 历的干扰情况和 /或对其他基站的干扰情况，选择开关。为了保证同步源基站 的开关不对同步基站产生影响， 同步源基站不管是处于打开状态还是关闭状 态， 都可以配置并发送第一同步参考信号和第二同步参考信号。 本发明对此 不作限定。 The embodiment of the present invention does not limit the scenarios of the first SRS and the second SRS. For example, for a multi-carrier scenario, if multiple carriers are deployed on the synchronization source base station, the corresponding first synchronization reference signal and/or second synchronization reference signal on different carriers may be the same or different. For another example, for the switching scenario, the synchronization source base station willSelect the switch to check the history of interference and/or interference to other base stations. In order to ensure that the switch of the synchronization source base station does not affect the synchronization base station, the synchronization source base station can configure and send the first synchronization reference signal and the second synchronization reference signal regardless of whether it is in the on state or in the off state. The present invention is not limited to this.
图 7是本发明另一个实施例的站间同步的方法的示意图。 图 7所示的方 法包括： FIG. 7 is a schematic diagram of a method for inter-station synchronization according to another embodiment of the present invention. The methods shown in Figure 7 include:
701 , 同步基站接收同步源基站发送的第一同步参考信号和第二同步参 考信号， 该第一同步参考信号的图案和该第二同步参考信号的图案不同。 701. The synchronization base station receives a first synchronization reference signal and a second synchronization reference signal sent by a synchronization source base station, where the pattern of the first synchronization reference signal is different from the pattern of the second synchronization reference signal.
702, 该同步基站根据该第一同步参考信号与该同步源基站进行时间同 步， 并且根据该第二同步参考信号与该同步源基站进行频率同步。 702. The synchronization base station performs time synchronization with the synchronization source base station according to the first synchronization reference signal, and performs frequency synchronization with the synchronization source base station according to the second synchronization reference signal.
本发明实施例通过将图案不同的第一同步参考信号和第二同步参考信 号发送至同步基站， 使得同步基站能够与同步源基站进行同步， 并且能够同 时满足时间同步和频率同步的需求。 In the embodiment of the present invention, the first synchronization reference signal and the second synchronization reference signal with different patterns are sent to the synchronization base station, so that the synchronization base station can be synchronized with the synchronization source base station, and can meet the requirements of time synchronization and frequency synchronization at the same time.
具体地， 同步基站在接收到图案不同的第一同步参考信号和第二同步参 考信号之后，要首先解析该第一同步参考信号的图案和第二同步参考信号的 图案， 并进一步确定哪个参考信号更适合与该同步源基站进行时间同步， 哪 个参考信号更适合与该同步源基站进行频率同步。 Specifically, after the synchronous base station receives the first synchronous reference signal and the second synchronous reference signal with different patterns, it first analyzes the pattern of the first synchronous reference signal and the pattern of the second synchronous reference signal, and further determines which reference signal Which reference signal is more suitable for performing time synchronization with the synchronization source base station, and which reference signal is more suitable for performing frequency synchronization with the synchronization source base station.
可选地， 作为一个实施例， 如果同步基站识别出根据第一同步参考信号 与该同步源基站进行时间同步可满足时间同步的需求，根据第二同步参考信 号与该同步源基站进行频率同步可满足频率同步的需求， 那么同步基站就根 据该第一同步参考信号与该同步源基站进行时间同步并且根据该第二同步 参考信号与该同步源基站进行频率同步。 Optionally, as an embodiment, if the synchronous base station recognizes that performing time synchronization with the synchronization source base station according to the first synchronization reference signal can meet the requirement of time synchronization, performing frequency synchronization with the synchronization source base station according to the second synchronization reference signal may If the requirement of frequency synchronization is met, the synchronous base station performs time synchronization with the synchronization source base station according to the first synchronization reference signal and performs frequency synchronization with the synchronization source base station according to the second synchronization reference signal.
可选地， 作为另一个实施例， 如果同步基站识别出根据第一同步参考信 号和第二同步参考信号的结合与该同步源基站进行时间同步可满足时间同 步的需求， 并且根据第二同步参考信号与该同步源基站进行频率同步可满足 频率同步的需求，那么同步基站就根据该第一同步参考信号和该第二同步参 考信号与该同步源基站进行时间同步并且根据该第二同步参考信号与该同 步源基站进行频率同步。 应注意， 这里所说的第一同步参考信号和第二同步 参考信号的结合可以是第一参考信号的全部和第二参考信号的全部， 可以是 第一参考信号的全部和第二参考信号的部分，也可以是第一参考信号的部分 和第二参考信号的全部或部分， 本发明对此不作限定。 可选地， 作为另一个实施例， 同步基站也可根据该第一同步参考信号与 该同步源基站进行时间同步并且根据该第一同步参考信号和该第二同步参 考信号与该同步源基站进行频率同步。 Optionally, as another embodiment, if the synchronous base station recognizes that time synchronization with the synchronization source base station according to the combination of the first synchronization reference signal and the second synchronization reference signal can meet the requirement of time synchronization, and according to the second synchronization reference Frequency synchronization of signals with the synchronization source base station can meet the requirements of frequency synchronization, then the synchronization base station performs time synchronization with the synchronization source base station according to the first synchronization reference signal and the second synchronization reference signal and according to the second synchronization reference signal Perform frequency synchronization with the synchronization source base station. It should be noted that the combination of the first synchronization reference signal and the second synchronization reference signal mentioned here may be all of the first reference signal and all of the second reference signal, or may be all of the first reference signal and the second reference signal A part may also be a part of the first reference signal and all or part of the second reference signal, which is not limited in the present invention. Optionally, as another embodiment, the synchronous base station may also perform time synchronization with the synchronization source base station according to the first synchronization reference signal and perform time synchronization with the synchronization source base station according to the first synchronization reference signal and the second synchronization reference signal. frequency synchronization.
可选地， 作为另一个实施例， 如果同步基站识别出根据第一同步参考信 号和第二同步参考信号的结合与该同步源基站进行时间同步可满足时间同 步的需求， 并且根据第一同步参考信号和第二同步参考信号与该同步源基站 进行频率同步可满足频率同步的需求， 那么同步基站就根据该第一同步参考 信号和该第二同步参考信号与该同步源基站进行时间同步并且根据该第一 同步参考信号和该第二同步参考信号与该同步源基站进行频率同步。 Optionally, as another embodiment, if the synchronization base station recognizes that time synchronization with the synchronization source base station according to the combination of the first synchronization reference signal and the second synchronization reference signal can meet the requirements of time synchronization, and according to the first synchronization reference signal and the second synchronization reference signal to perform frequency synchronization with the synchronization source base station to meet the requirements of frequency synchronization, then the synchronization base station performs time synchronization with the synchronization source base station according to the first synchronization reference signal and the second synchronization reference signal and according to The first SRS and the second SRS perform frequency synchronization with the synchronization source base station.
应注意， 即使源基站是根据同步基站对时间同步的同步需求来配置第一 同步参考信号，根据同步基站对频率同步的同步需求来配置第二同步参考信 号。 同步基站也不一定就要根据第一同步参考信号与同步源基站进行时间同 步， 并且根据第二同步参考信号与同步源基站进行频率同步。 而是， 同步基 站会根据同步性能的好坏来选择到底是根据第一个同步参考信号还是第二 个同步参考信号或者两个同步参考信号的结合与该同步源基站来进行时间 同步， 同步基站与该同步源基站进行频率同步的类似。 并且， 与此同时， 同 步源基站也不知道同步基站到底是根据哪一个同步参考信号与该同步源基 站进行时间同步或者频率同步的。 It should be noted that even if the source base station configures the first synchronization reference signal according to the synchronization requirement of the synchronization base station for time synchronization, the second synchronization reference signal is configured according to the synchronization requirement of the synchronization base station for frequency synchronization. The synchronization base station does not necessarily need to perform time synchronization with the synchronization source base station according to the first synchronization reference signal, and perform frequency synchronization with the synchronization source base station according to the second synchronization reference signal. Instead, the synchronization base station will choose whether to perform time synchronization with the synchronization source base station according to the first synchronization reference signal, the second synchronization reference signal, or the combination of the two synchronization reference signals according to the quality of the synchronization performance. It is similar to performing frequency synchronization with the synchronization source base station. Moreover, at the same time, the synchronization source base station does not know which synchronization reference signal the synchronization base station performs time synchronization or frequency synchronization with the synchronization source base station.
可选地， 作为另一个实施例， 同步基站在步骤 701中可接受第三同步参 考信号，该第三同步参考信号可理解为前述第一同步参考信号和第二同步参 考信号的叠加。 随后， 在步骤 702中， 该同步基站可首先对该第三同步参考 信号进行解析，将该第三同步参考信号分解为上述第一同步参考信号和第二 同步参考信号之后，再进一步地根据第一同步参考信号和第二同步参考信号 与该同步源基站进行时间同步和频率同步。 或者， 随后， 在步骤 702中， 该 同步基站可直接根据该第三同步参考信号与该同步源基站进行时间同步和 频率同步。 这里所述的第三同步参考信号在一个周期内的分布是不均匀的， 或者该第三同步参考信号在一个周期内的不同时频资源和 /或序列资源是不 均匀的。 Optionally, as another embodiment, the synchronous base station may accept the third synchronous reference signal in step 701, and the third synchronous reference signal may be understood as a superposition of the foregoing first synchronous reference signal and the second synchronous reference signal. Subsequently, in step 702, the synchronous base station may first analyze the third synchronous reference signal, decompose the third synchronous reference signal into the above-mentioned first synchronous reference signal and the second synchronous reference signal, and then further according to the first synchronous reference signal A synchronization reference signal and a second synchronization reference signal perform time synchronization and frequency synchronization with the synchronization source base station. Or, subsequently, in step 702, the synchronous base station may perform time synchronization and frequency synchronization with the synchronization source base station directly according to the third synchronization reference signal. The distribution of the third SRS described here in one cycle is uneven, or the different time-frequency resources and/or sequence resources of the third SRS in one cycle are uneven.
可选地， 作为另一个实施例， 在步骤 701之前， 该方法还可包括： 同步 基站获取该第一同步参考信号的图案和该第二同步参考信号的图案。 Optionally, as another embodiment, before step 701, the method may further include: the synchronous base station acquires the pattern of the first synchronization reference signal and the pattern of the second synchronization reference signal.
可选地， 作为另一个实施例， 同步基站可以直接从同步源基站获取该第 一同步参考信号的图案和该第二同步参考信号的图案。 Optionally, as another embodiment, the synchronization base station may directly obtain the first synchronization source base stationA pattern of SRS and a pattern of the second SRS.
可选地， 作为另一个实施例， 同步基站可以从同步源基站获取同步源基 站的同步等级，以及同步等级与第一同步参考信号的图案和 /或第二同步参考 信号的图案之间的映射关系； 或者， 同步基站可以从同步源基站获取同步源 基站的同步等级， 从基站管理器或者 OAM获取同步等级与第一同步参考信 号的图案和 /或第二同步参考信号的图案之间的映射关系；或者， 同步基站可 以从同步源基站获取同步源基站的同步等级，从标准预定义中获取同步等级 与第一同步参考信号的图案和 /或第二同步参考信号的图案之间的映射关系， 并进一步根据该同步源基站的同步等级和该映射关系确定该第一同步参考 信号的图案和该第二同步参考信号的图案。 Optionally, as another embodiment, the synchronization base station may obtain the synchronization level of the synchronization source base station from the synchronization source base station, and the mapping between the synchronization level and the pattern of the first synchronization reference signal and/or the pattern of the second synchronization reference signal Or, the synchronization base station may obtain the synchronization level of the synchronization source base station from the synchronization source base station, and obtain the mapping between the synchronization level and the pattern of the first synchronization reference signal and/or the pattern of the second synchronization reference signal from the base station manager or OAM Or, the synchronization base station can obtain the synchronization level of the synchronization source base station from the synchronization source base station, and obtain the mapping relationship between the synchronization level and the pattern of the first synchronization reference signal and/or the pattern of the second synchronization reference signal from the standard predefined , and further determine the pattern of the first SRS and the pattern of the second SRS according to the synchronization level of the synchronization source base station and the mapping relationship.
可选地， 作为另一个实施例， 同步基站可以通过接收同步源基站发送的 指示信令获取该第一同步参考信号的图案和该第二同步参考信号的图案，或 者上述映射关系和该同步源基站的同步等级， 或者该同步源基站的同步等 级， 这里的指示信令可以是 backhaul信令， 也可以是空口信令， 或者也可以 是其他的信令形式， 本发明对此不作限定。 Optionally, as another embodiment, the synchronization base station may obtain the pattern of the first synchronization reference signal and the pattern of the second synchronization reference signal, or the above mapping relationship and the synchronization source by receiving the indication signaling sent by the synchronization source base station. The synchronization level of the base station, or the synchronization level of the synchronization source base station, the indication signaling here may be backhaul signaling, air interface signaling, or other signaling forms, which are not limited in the present invention.
图 8是本发明另一个实施例的站间同步的方法的示意性流程图。 图 8所 示的方法包括： FIG. 8 is a schematic flowchart of a method for inter-station synchronization according to another embodiment of the present invention. The methods shown in Figure 8 include:
803 , 同步源基站 801生成第一同步参考信号和第二同步参考信号， 该 第一同步参考信号的图案和该第二同步参考信号的图案不同。 803. The synchronization source base station 801 generates a first synchronization reference signal and a second synchronization reference signal, where the pattern of the first synchronization reference signal is different from the pattern of the second synchronization reference signal.
804, 同步源基站 801将该第一同步参考信号和该第二同步参考信号发 送至同步基站 802。 804. The synchronization source base station 801 sends the first synchronization reference signal and the second synchronization reference signal to the synchronization base station 802.
805 , 同步基站 802根据该第一同步参考信号与同步源基站 801进行时 间同步并且根据该第二同步参考信号与同步源基站 801进行频率同步。 805. The synchronization base station 802 performs time synchronization with the synchronization source base station 801 according to the first synchronization reference signal and performs frequency synchronization with the synchronization source base station 801 according to the second synchronization reference signal.
具体地， 本发明实施例中的步骤 803可参见图 2的相关描述， 其中所说 的该第一同步参考信号的图案和该第二同步参考信号的图案不同可以参见 图 3至图 5的相关描述。本发明实施例中的步骤 805可参见图 7的相关描述。 为避免重复， 这里不再赘述。 Specifically, for step 803 in the embodiment of the present invention, refer to the related description in FIG. describe. For step 805 in the embodiment of the present invention, refer to the relevant description in FIG. 7 . To avoid repetition, details are not repeated here.
图 9是本发明一个实施例的基站的框图。 图 9所示的基站 900包括： 生成单元 901 , 用于生成第一同步参考信号和第二同步参考信号， 该第 一同步参考信号的图案和该第二同步参考信号的图案不同。 Fig. 9 is a block diagram of a base station according to an embodiment of the present invention. The base station 900 shown in FIG. 9 includes: a generating unit 901, configured to generate a first SRS and a second SRS, where the pattern of the first SRS is different from the pattern of the second SRS.
发送单元 902, 用于将生成单元 901生成的该第一同步参考信号和该第 二同步参考信号发送至同步基站， 以便该同步基站根据该第一同步参考信号 与该基站进行时间同步并且根据该第二同步参考信号与该基站进行频率同 步。 The sending unit 902 is configured to send the first synchronization reference signal generated by the generating unit 901 and the secondThe two synchronization reference signals are sent to the synchronization base station, so that the synchronization base station performs time synchronization with the base station according to the first synchronization reference signal and performs frequency synchronization with the base station according to the second synchronization reference signal.
本发明实施例通过将图案不同的第一同步参考信号和第二同步参考信 号发送至同步基站， 使得同步基站能够与同步源基站进行同步， 并且能够同 时满足时间同步和频率同步的需求。 In the embodiment of the present invention, the first synchronization reference signal and the second synchronization reference signal with different patterns are sent to the synchronization base station, so that the synchronization base station can be synchronized with the synchronization source base station, and can meet the requirements of time synchronization and frequency synchronization at the same time.
可选地， 作为一个实施例， 该基站 900还可包括配置单元， 用于根据该 同步基站的同步需求， 配置该第一同步参考信号的图案和该第二同步参考信 号的图案， 以便该基站 900根据该第一同步参考信号的图案生成该第一同步 参考信号， 并根据该第二同步参考信号的图案生成该第二同步参考信号。 Optionally, as an embodiment, the base station 900 may further include a configuration unit configured to configure the pattern of the first synchronization reference signal and the pattern of the second synchronization reference signal according to the synchronization requirements of the synchronization base station, so that the base station 900 generates the first SRS according to the pattern of the first SRS, and generates the second SRS according to the pattern of the second SRS.
可选地， 作为另一个实施例， 该基站 900还可包括接收单元， 用于接收 由基站管理器或者 OAM配置的该第一同步参考信号的图案和该第二同步参 考信号的图案， 以便该基站 900根据该第一同步参考信号的图案生成该第一 同步参考信号， 并根据该第二同步参考信号的图案生成该第二同步参考信 号。 Optionally, as another embodiment, the base station 900 may further include a receiving unit configured to receive the pattern of the first synchronization reference signal and the pattern of the second synchronization reference signal configured by the base station manager or OAM, so that the The base station 900 generates the first SRS according to the pattern of the first SRS, and generates the second SRS according to the pattern of the second SRS.
可选地，作为另一个实施例，该基站 900还可包括接收单元和配置单元。 其中该接收单元用于接收基站管理器或者 OAM配置的同步等级与第一同步 参考信号的图案和 /或第二同步参考信号的图案之间的映射关系。配置单元用 于根据该映射关系和该基站 900的同步等级配置该第一同步参考信号的图案 和该第二同步参考信号的图案。 Optionally, as another embodiment, the base station 900 may further include a receiving unit and a configuration unit. Wherein the receiving unit is used to receive the mapping relationship between the synchronization level configured by the base station manager or the OAM and the pattern of the first synchronization reference signal and/or the pattern of the second synchronization reference signal. The configuration unit is configured to configure the pattern of the first SRS and the pattern of the second SRS according to the mapping relationship and the synchronization level of the base station 900.
图 9所示的基站 900能够实现图 2和图 8的实施例中所示的同步源基站 所实现的各个过程， 为避免重复， 这里不再赘述。 The base station 900 shown in FIG. 9 can implement various processes implemented by the synchronization source base station shown in the embodiments of FIG. 2 and FIG.
图 10是本发明另一个实施例的基站的框图。 图 10所示的基站 1000包 括： Fig. 10 is a block diagram of a base station according to another embodiment of the present invention. The base station 1000 shown in Figure 10 includes:
接收单元 1001 ,用于接收同步源基站发送的第一同步参考信号和第二同 步参考信号， 该第一同步参考信号的图案和该第二同步参考信号的图案不 同。 The receiving unit 1001 is configured to receive a first synchronization reference signal and a second synchronization reference signal sent by a synchronization source base station, where the pattern of the first synchronization reference signal is different from the pattern of the second synchronization reference signal.
处理单元 1002, 用于根据接收单元 1001接收的该第一同步参考信号与 该同步源基站进行时间同步， 并且根据接收单元 1001接收的该第二同步参 考信号与该同步源基站进行频率同步。 The processing unit 1002 is configured to perform time synchronization with the synchronization source base station according to the first synchronization reference signal received by the receiving unit 1001, and perform frequency synchronization with the synchronization source base station according to the second synchronization reference signal received by the receiving unit 1001.
本发明实施例通过将图案不同的第一同步参考信号和第二同步参考信 号发送至同步基站， 使得同步基站能够与同步源基站进行同步， 并且能够同 时满足时间同步和频率同步的需求。 In the embodiment of the present invention, the first SRS and the second SRS with different patternsThe signal is sent to the synchronous base station, so that the synchronous base station can be synchronized with the synchronization source base station, and can meet the requirements of time synchronization and frequency synchronization at the same time.
可选地， 作为一个实施例， 该接收单元 1001还用于， 获取该第一同步 参考信号的图案和该第二同步参考信号的图案。 Optionally, as an embodiment, the receiving unit 1001 is further configured to acquire the pattern of the first SRS and the pattern of the second SRS.
可选地， 作为另一个实施例， 该处理单元 1002还用于， 根据该第一同 步参考信号和该第二同步参考信号与该同步源基站进行时间同步。 Optionally, as another embodiment, the processing unit 1002 is further configured to perform time synchronization with the synchronization source base station according to the first synchronization reference signal and the second synchronization reference signal.
可选地， 作为另一个实施例， 该处理单元 1002还用于， 根据该第一同 步参考信号和该第二同步参考信号与该同步源基站进行频率同步。 Optionally, as another embodiment, the processing unit 1002 is further configured to perform frequency synchronization with the synchronization source base station according to the first synchronization reference signal and the second synchronization reference signal.
图 10所示的基站 1000能够实现图 7和图 8的实施例中所示的同步基站 所实现的各个过程， 为避免重复， 这里不再赘述。 The base station 1000 shown in FIG. 10 can implement various processes implemented by the synchronous base station shown in the embodiments of FIG. 7 and FIG. 8 , and to avoid repetition, details are not repeated here.
图 11是本发明另一个实施例的基站的框图。 图 11所示的基站 1100包 括处理器 1101 , 存储器 1102和收发电路 1103。 Fig. 11 is a block diagram of a base station according to another embodiment of the present invention. The base station 1100 shown in FIG. 11 includes a processor 1101, a memory 1102 and a transceiver circuit 1103.
处理器 1101生成第一同步参考信号和第二同步参考信号， 该第一同步 参考信号的图案和该第二同步参考信号的图案不同。 收发电路 1103将处理 器 1101生成的该第一同步参考信号和该第二同步参考信号发送至同步基站， 以便该同步基站根据该第一同步参考信号与该基站进行时间同步并且根据 该第二同步参考信号与该基站进行频率同步。 The processor 1101 generates a first synchronization reference signal and a second synchronization reference signal, where a pattern of the first synchronization reference signal is different from a pattern of the second synchronization reference signal. The transceiver circuit 1103 sends the first synchronization reference signal and the second synchronization reference signal generated by the processor 1101 to a synchronization base station, so that the synchronization base station performs time synchronization with the base station according to the first synchronization reference signal and according to the second synchronization The reference signal is frequency synchronized with the base station.
本发明实施例通过将图案不同的第一同步参考信号和第二同步参考信 号发送至同步基站， 使得同步基站能够与同步源基站进行同步， 并且能够同 时满足时间同步和频率同步的需求。 In the embodiment of the present invention, the first synchronization reference signal and the second synchronization reference signal with different patterns are sent to the synchronization base station, so that the synchronization base station can be synchronized with the synchronization source base station, and can meet the requirements of time synchronization and frequency synchronization at the same time.
基站 1100中的各个组件通过总线系统 1104耦合在一起， 其中总线系统 1104除包括数据总线之外， 还包括电源总线、控制总线和状态信号总线。 但 是为了清楚说明起见， 在图 11中将各种总线都标为总线系统 1104。 Various components in the base station 1100 are coupled together through a bus system 1104, where the bus system 1104 includes not only a data bus, but also a power bus, a control bus, and a status signal bus. However, for the sake of clarity, various buses are labeled as bus system 1104 in FIG. 11 .
可选地， 作为一个实施例， 处理器 1101根据该同步基站的同步需求， 配置该第一同步参考信号的图案和该第二同步参考信号的图案， 以便处理器 1101根据该第一同步参考信号的图案生成该第一同步参考信号，并根据该第 二同步参考信号的图案生成该第二同步参考信号。 Optionally, as an embodiment, the processor 1101 configures the pattern of the first SRS and the pattern of the second SRS according to the synchronization requirement of the SBS, so that the processor 1101 configures the pattern of the first SRS according to the synchronization requirement of the SBS. The first synchronous reference signal is generated according to the pattern of the second synchronous reference signal, and the second synchronous reference signal is generated according to the pattern of the second synchronous reference signal.
可选地，作为另一个实施例，收发电路 1103接收由基站管理器或者 OAM 配置的该第一同步参考信号的图案和该第二同步参考信号的图案， 以便处理 器 1101根据该第一同步参考信号的图案生成该第一同步参考信号， 并根据 该第二同步参考信号的图案生成该第二同步参考信号。 可选地， 作为另一个实施例， 收发电路 1103接收基站管理器或者 OAM 配置的同步等级与第一同步参考信号的图案和 /或第二同步参考信号的图案 之间的映射关系。 处理器 1101根据该映射关系和该基站 1100的同步等级配 置该第一同步参考信号的图案和该第二同步参考信号的图案。 Optionally, as another embodiment, the transceiver circuit 1103 receives the pattern of the first synchronization reference signal and the pattern of the second synchronization reference signal configured by the base station manager or OAM, so that the processor 1101 The pattern of signals generates the first synchronization reference signal, and the second synchronization reference signal is generated according to the pattern of the second synchronization reference signal. Optionally, as another embodiment, the transceiver circuit 1103 receives the mapping relationship between the synchronization level configured by the base station manager or the OAM and the pattern of the first synchronization reference signal and/or the pattern of the second synchronization reference signal. The processor 1101 configures the pattern of the first SRS and the pattern of the second SRS according to the mapping relationship and the synchronization level of the base station 1100.
上述本发明实施例揭示的方法可以应用于处理器 1101 中， 或者由处理 器 1101实现。处理器 1101可能是一种集成电路芯片，具有信号的处理能力。 在实现过程中， 上述方法的各步骤可以通过处理器 1101 中的硬件的集成逻 辑电路或者软件形式的指令完成。 上述的处理器 1101可以是通用处理器、 数字信号处理器（Digital Signal Processor, DSP ),专用集成电路（ Application Specific Integrated Circuit, ASIC ), 现成可编程门阵列 （ Field Programmable Gate Array, FPGA )或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、 逻辑框图。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。结合本发明实施例所公开的方法的步骤可以直接体现为硬件译码处 理器执行完成， 或者用译码处理器中的硬件及软件模块组合执行完成。 软件 模块可以位于随机存储器， 闪存、 只读存储器， 可编程只读存储器或者电可 擦写可编程存储器、 寄存器等本领域成熟的存储介质中。 该存储介质位于存 储器 1102, 处理器 1101读取存储器 1102中的信息， 结合其硬件完成上述方 法的步骤。 The methods disclosed in the foregoing embodiments of the present invention may be applied to the processor 1101, or may be implemented by the processor 1101. Processor 1101 may be an integrated circuit chip with signal processing capability. In the implementation process, each step of the above method can be completed by an integrated logic circuit of hardware in the processor 1101 or an instruction in the form of software. The aforementioned processor 1101 may be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other Programmable logic devices, discrete gate or transistor logic devices, logic block diagrams. A general-purpose processor may be a microprocessor, or the processor may be any conventional processor, and the like. The steps of the method disclosed in the embodiments of the present invention may be directly implemented by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software module may be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register. The storage medium is located in the memory 1102, and the processor 1101 reads the information in the memory 1102, and completes the steps of the above method in combination with its hardware.
基站 1100能够实现图 2和图 8的实施例中由同步源基站实现的各个过 程， 为避免重复， 这里不再赘述。 The base station 1100 can implement various processes implemented by the synchronization source base station in the embodiments of FIG. 2 and FIG. 8 , and to avoid repetition, details are not repeated here.
图 12是本发明另一个实施例的基站的框图。 图 12所示的基站 1200包 括处理器 1201 , 存储器 1202和收发电路 1203。 Fig. 12 is a block diagram of a base station according to another embodiment of the present invention. The base station 1200 shown in FIG. 12 includes a processor 1201, a memory 1202 and a transceiver circuit 1203.
收发电路 1203接收同步源基站发送的第一同步参考信号和第二同步参 考信号， 该第一同步参考信号的图案和该第二同步参考信号的图案不同。 处 理器 1201根据收发电路 1203接收的该第一同步参考信号与该同步源基站进 行时间同步， 并且根据收发电路 1203接收的该第二同步参考信号与该同步 源基站进行频率同步。 The transceiver circuit 1203 receives the first synchronization reference signal and the second synchronization reference signal sent by the synchronization source base station, and the pattern of the first synchronization reference signal is different from the pattern of the second synchronization reference signal. The processor 1201 performs time synchronization with the synchronization source base station according to the first synchronization reference signal received by the transceiver circuit 1203, and performs frequency synchronization with the synchronization source base station according to the second synchronization reference signal received by the transceiver circuit 1203.
本发明实施例通过将图案不同的第一同步参考信号和第二同步参考信 号发送至同步基站， 使得同步基站能够与同步源基站进行同步， 并且能够同 时满足时间同步和频率同步的需求。 基站 1200中的各个组件通过总线系统 1204耦合在一起， 其中总线系统 1204除包括数据总线之外， 还包括电源总线、控制总线和状态信号总线。但 是为了清楚说明起见， 在图 12中将各种总线都标为总线系统 1204。 In the embodiment of the present invention, the first synchronization reference signal and the second synchronization reference signal with different patterns are sent to the synchronization base station, so that the synchronization base station can be synchronized with the synchronization source base station, and can meet the requirements of time synchronization and frequency synchronization at the same time. Various components in the base station 1200 are coupled together through a bus system 1204, where the bus system 1204 includes not only a data bus, but also a power bus, a control bus, and a status signal bus. However, for clarity of illustration, the various buses are labeled as bus system 1204 in FIG. 12 .
可选地， 作为一个实施例， 收发电路 1203获取该第一同步参考信号的 图案和该第二同步参考信号的图案。 Optionally, as an embodiment, the transceiver circuit 1203 acquires the pattern of the first synchronization reference signal and the pattern of the second synchronization reference signal.
可选地， 作为另一个实施例， 处理器 1201根据该第一同步参考信号和 该第二同步参考信号与该同步源基站进行时间同步。 Optionally, as another embodiment, the processor 1201 performs time synchronization with the synchronization source base station according to the first synchronization reference signal and the second synchronization reference signal.
可选地， 作为另一个实施例， 处理器 1201根据该第一同步参考信号和 该第二同步参考信号与该同步源基站进行频率同步。 Optionally, as another embodiment, the processor 1201 performs frequency synchronization with the synchronization source base station according to the first synchronization reference signal and the second synchronization reference signal.
上述本发明实施例揭示的方法可以应用于处理器 1201 中， 或者由处理 器 1201实现。处理器 1201可能是一种集成电路芯片，具有信号的处理能力。 在实现过程中， 上述方法的各步骤可以通过处理器 1201 中的硬件的集成逻 辑电路或者软件形式的指令完成。 上述的处理器 1201可以是通用处理器、 DSP、 ASIC, FPGA或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、 逻辑框图。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。结合本发明实施例所公开的方法的步骤可以直接体现为硬件译码处 理器执行完成， 或者用译码处理器中的硬件及软件模块组合执行完成。 软件 模块可以位于随机存储器， 闪存、 只读存储器， 可编程只读存储器或者电可 擦写可编程存储器、 寄存器等本领域成熟的存储介质中。 该存储介质位于存 储器 1202,处理器 1201读取存储器 1202中的信息，结合其硬件完成上述方 法的步骤。 The methods disclosed in the above embodiments of the present invention may be applied to the processor 1201, or implemented by the processor 1201. Processor 1201 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by an integrated logic circuit of hardware in the processor 1201 or an instruction in the form of software. The aforementioned processor 1201 may be a general-purpose processor, DSP, ASIC, FPGA or other programmable logic devices, discrete gate or transistor logic devices, or logic block diagrams. A general-purpose processor may be a microprocessor, or the processor may be any conventional processor, and the like. The steps of the method disclosed in the embodiments of the present invention may be directly implemented by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software module may be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register. The storage medium is located in the memory 1202, and the processor 1201 reads the information in the memory 1202, and completes the steps of the above method in combination with its hardware.
基站 1200能够实现图 7和图 8的实施例中由同步基站实现的各个过程， 为避免重复， 这里不再赘述。 The base station 1200 can implement various processes implemented by the synchronous base station in the embodiments of FIG. 7 and FIG. 8 , and to avoid repetition, details are not repeated here.
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各 示例的单元及算法步骤， 能够以电子硬件、 或者计算机软件和电子硬件的结 合来实现。 这些功能究竟以硬件还是软件方式来执行， 取决于技术方案的特 定应用和设计约束条件。 专业技术人员可以对每个特定的应用来使用不同方 法来实现所描述的功能， 但是这种实现不应认为超出本发明的范围。 Those skilled in the art can appreciate that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present invention.
所属领域的技术人员可以清楚地了解到， 为描述的方便和筒洁， 上述描 述的系统、 装置和单元的具体工作过程， 可以参考前述方法实施例中的对应 过程， 在此不再赘述。 Those skilled in the art can clearly understand that for the convenience and clarity of the description, the specific working process of the above-described systems, devices and units can refer to the corresponding ones in the foregoing method embodimentsThe process will not be repeated here.
在本申请所提供的几个实施例中， 应该理解到， 所揭露的系统、 装置和 方法， 可以通过其它的方式实现。 例如， 以上所描述的装置实施例仅仅是示 意性的， 例如， 所述单元的划分， 仅仅为一种逻辑功能划分， 实际实现时可 以有另外的划分方式， 例如多个单元或组件可以结合或者可以集成到另一个 系统， 或一些特征可以忽略， 或不执行。 另一点， 所显示或讨论的相互之间 的耦合或直接耦合或通信连接可以是通过一些接口， 装置或单元的间接耦合 或通信连接， 可以是电性， 机械或其它的形式。 为单元显示的部件可以是或者也可以不是物理单元， 即可以位于一个地方， 或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或 者全部单元来实现本实施例方案的目的。 In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms. The components shown for a unit may or may not be physical units, may be located in one place, or may be distributed over multiple network units. Part or all of the units can be selected according to actual needs to realize the purpose of the solution of this embodiment.
另外， 在本发明各个实施例中的各功能单元可以集成在一个处理单元 中， 也可以是各个单元单独物理存在， 也可以两个或两个以上单元集成在一 个单元中。 In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使 用时， 可以存储在一个计算机可读取存储介质中。 基于这样的理解， 本发明 的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部 分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质 中， 包括若干指令用以使得一台计算机设备（可以是个人计算机， 服务器， 述的存储介质包括： U盘、移动硬盘、只读存储器（ Read-Only Memory, ROM )、 随机存取存储器（Random Access Memory, RAM ), 磁碟或者光盘等各种可 以存储程序代码的介质。 If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including A number of instructions are used to make a computer device (which can be a personal computer, a server), and the above-mentioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM ), magnetic disks or optical disks and other media that can store program codes.
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.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2013/084717WO2015042954A1 (en) | 2013-09-30 | 2013-09-30 | Method for inter-station synchronization and base station |
| Publication Number | Publication Date |
|---|---|
| CN104685941Atrue CN104685941A (en) | 2015-06-03 |
| CN104685941B CN104685941B (en) | 2019-04-19 |
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| CN201380002106.9AActiveCN104685941B (en) | 2013-09-30 | 2013-09-30 | Method and base station for synchronization between stations |
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| WO (1) | WO2015042954A1 (en) |
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| WO2015042954A1 (en) | 2015-04-02 |
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