CN113260038A - Acquisition method of reference time information, information transceiving method and related equipment - Google Patents
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Abstract
本发明提供一种参考时间信息的获取方法、信息收发方法及相关设备,参考时间信息的获取方法包括:基于第一下行参考时间和第二下行参考时间,计算所述第二下行参考时间对应的参考时间信息;其中,所述第二下行参考时间为:预配置、协议约定或者网络侧配置的且位于所述第一参考时间之后的下行参考时间;所述第一参考时间包括:在所述第二下行参考时间之前接收到的或者计算得出的参考时间信息对应的下行参考时间。本发明提供的参考时间信息的获取方法,终端可以获取到新的参考时间信息,从而使得终端可以基于计算得到的参考时间信息进行时间同步,以保证终端和网络侧的时间理解一致,进而降低终端的时间相对于网路侧的时间出现偏差的可能性。
The present invention provides a method for obtaining reference time information, a method for sending and receiving information, and related equipment. The method for obtaining reference time information includes: based on a first downlink reference time and a second downlink reference time, calculating the correspondence between the second downlink reference time and the second downlink reference time. The reference time information of The downlink reference time corresponding to the reference time information received or calculated before the second downlink reference time. With the method for obtaining reference time information provided by the present invention, the terminal can obtain new reference time information, so that the terminal can perform time synchronization based on the calculated reference time information, so as to ensure that the time understanding of the terminal and the network side is consistent, thereby reducing the time consumption of the terminal. The possibility of deviation of the time relative to the time on the network side.
Description
技术领域technical field
本发明涉及无线通信技术领域,尤其是涉及一种参考时间信息的获取方法、信息收发方法及相关设备。The present invention relates to the technical field of wireless communication, and in particular, to a method for obtaining reference time information, a method for sending and receiving information, and related equipment.
背景技术Background technique
在无线通信技术中,网络侧可以向终端(User Equipment,UE)发送参考时间信息,终端根据接收到的参考时间信息进行时间同步,从而保证终端和网络侧的时间理解一致。但是,由于终端和网络侧设备分别设置有独立的始终,且不同时钟的时钟振荡器可能不同,因而在终端根据网络侧发送的参考信息进行时间同步之后,可能会导致终端的时间相对于网络侧的时间出现偏差。In wireless communication technology, the network side may send reference time information to a terminal (User Equipment, UE), and the terminal performs time synchronization according to the received reference time information, thereby ensuring consistent time understanding between the terminal and the network side. However, since the terminal and the network side equipment are respectively set with independent clocks, and the clock oscillators of different clocks may be different, after the terminal performs time synchronization according to the reference information sent by the network side, the time of the terminal may be relatively different from that of the network side. time deviation.
发明内容SUMMARY OF THE INVENTION
本发明实施例提供一种参考时间信息的获取方法、终端和网络侧设备,以解决现有技术中存在的技术问题。Embodiments of the present invention provide a method, a terminal, and a network-side device for obtaining reference time information, so as to solve the technical problems existing in the prior art.
为了解决上述技术问题,本发明是这样实现的:In order to solve the above-mentioned technical problems, the present invention is achieved in this way:
第一方面,本发明实施例提供一种参考时间信息的获取方法,应用于终端,包括:In a first aspect, an embodiment of the present invention provides a method for obtaining reference time information, which is applied to a terminal, including:
基于第一下行参考时间和第二下行参考时间,计算所述第二下行参考时间对应的参考时间信息;calculating reference time information corresponding to the second downlink reference time based on the first downlink reference time and the second downlink reference time;
其中,所述第二下行参考时间为:预配置、协议约定或者网络侧配置的且位于所述第一参考时间之后的下行参考时间;所述第一参考时间包括:在所述第二下行参考时间之前接收到的或者计算得出的参考时间信息对应的下行参考时间。Wherein, the second downlink reference time is: a downlink reference time pre-configured, agreed in a protocol or configured by the network side and located after the first reference time; the first reference time includes: the second downlink reference time The downlink reference time corresponding to the reference time information received or calculated before the time.
第二方面,本发明实施例还提供一种参考时间信息的获取方法,应用于终端,包括:In a second aspect, an embodiment of the present invention further provides a method for obtaining reference time information, which is applied to a terminal, including:
向网络侧设备发送需求信息;Send demand information to network-side equipment;
接收所述网络侧设备基于所述需求信息发送的目标参考时间信息;receiving target reference time information sent by the network side device based on the demand information;
基于所述目标参考时间信息,计算所述第二下行参考时间对应的参考时间信息。Based on the target reference time information, the reference time information corresponding to the second downlink reference time is calculated.
第三方面,本发明实施例还提供一种信息收发方法,应用于网络侧设备,包括:In a third aspect, an embodiment of the present invention further provides a method for sending and receiving information, which is applied to a network side device, including:
接收终端发送的需求信息;Receive the demand information sent by the terminal;
响应于所述需求信息,向所述终端发送目标参考时间信息。In response to the demand information, target reference time information is sent to the terminal.
第四方面,本发明实施例还提供一种终端,包括:In a fourth aspect, an embodiment of the present invention further provides a terminal, including:
参考时间信息计算模块,用于基于第一下行参考时间和第二下行参考时间,计算所述第二下行参考时间对应的参考时间信息;a reference time information calculation module, configured to calculate reference time information corresponding to the second downlink reference time based on the first downlink reference time and the second downlink reference time;
其中,所述第二下行参考时间为:预配置、协议约定或者网络侧配置的且位于所述第一参考时间之后的下行参考时间;所述第一参考时间包括:在所述第二下行参考时间之前接收到的或者计算得出的参考时间信息对应的下行参考时间。Wherein, the second downlink reference time is: a downlink reference time pre-configured, agreed in a protocol or configured by the network side and located after the first reference time; the first reference time includes: the second downlink reference time The downlink reference time corresponding to the reference time information received or calculated before the time.
第五方面,本发明实施例还提供一种终端,包括:In a fifth aspect, an embodiment of the present invention further provides a terminal, including:
发送模块,用于向网络侧设备发送需求信息;The sending module is used to send demand information to the network side device;
接收模块,用于接收所述网络侧设备基于所述需求信息发送的目标参考时间信息;a receiving module, configured to receive target reference time information sent by the network side device based on the demand information;
参考时间信息计算模块,用于基于所述目标参考时间信息,计算所述第二下行参考时间对应的参考时间信息。A reference time information calculation module, configured to calculate reference time information corresponding to the second downlink reference time based on the target reference time information.
第六方面,本发明实施例还提供一种网络侧设备,其特征在于,包括:In a sixth aspect, an embodiment of the present invention further provides a network-side device, characterized in that it includes:
接收模块,用于接收终端发送的需求信息;The receiving module is used to receive the demand information sent by the terminal;
发送模块,用于响应于所述需求信息,向所述终端发送目标参考时间信息。A sending module, configured to send target reference time information to the terminal in response to the demand information.
第七方面,本发明实施例提供一种终端,包括:存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序,所述计算机程序被所述处理器执行时实现本发明实施例第一方面或者第二方面提供的参考时间信息的获取方法中的步骤。In a seventh aspect, an embodiment of the present invention provides a terminal, including: a memory, a processor, and a computer program stored on the memory and executable on the processor, when the computer program is executed by the processor The steps in the method for acquiring reference time information provided in the first aspect or the second aspect of the embodiments of the present invention are implemented.
第八方面,本发明实施例提供一种网络侧设备,包括:存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序,所述计算机程序被所述处理器执行时实现本发明实施例第三方面提供的信息收发方法中的步骤。In an eighth aspect, an embodiment of the present invention provides a network-side device, including: a memory, a processor, and a computer program stored on the memory and running on the processor, the computer program being executed by the processor When executed, the steps in the information sending and receiving method provided by the third aspect of the embodiments of the present invention are implemented.
第九方面,本发明实施例提供一种计算机可读存储介质,所述计算机可读存储介质上存储有计算机程序,所述计算机程序被处理器执行时实现本发明实施例第一方面或者第二方面提供的参考时间信息的获取方法中的步骤,或者第三方面提供的信息收发方法中的步骤。In a ninth aspect, an embodiment of the present invention provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the first aspect or the second aspect of the embodiment of the present invention is implemented The steps in the method for acquiring reference time information provided by the aspect, or the steps in the method for sending and receiving information provided by the third aspect.
本发明实施例中,通过基于第一下行参考时间和第二下行参考时间,计算所述第二下行参考时间对应的参考时间信息;其中,所述第二下行参考时间为:预配置、协议约定或者网络侧配置的且位于所述第一参考时间之后的下行参考时间;所述第一参考时间包括:在所述第二下行参考时间之前接收到的或者计算得出的参考时间信息对应的下行参考时间。这样,终端在基于参考时间信息,计算所述第二下行参考时间对应的参考时间信息之后,还可以基于第一下行参考时间和第二下行参考时间计算第二下行参考时间对应的参考时间信息,从而使得终端可以基于计算得到的参考时间信息进行时间同步,以保证终端和网络侧的时间理解一致,进而降低终端的时间相对于网路侧的时间出现偏差的可能性。In the embodiment of the present invention, the reference time information corresponding to the second downlink reference time is calculated based on the first downlink reference time and the second downlink reference time; wherein the second downlink reference time is: pre-configured, protocol The downlink reference time agreed or configured by the network side and located after the first reference time; the first reference time includes: the reference time information received or calculated before the second downlink reference time corresponds to Downlink reference time. In this way, after calculating the reference time information corresponding to the second downlink reference time based on the reference time information, the terminal may also calculate the reference time information corresponding to the second downlink reference time based on the first downlink reference time and the second downlink reference time , so that the terminal can perform time synchronization based on the calculated reference time information, so as to ensure the consistent understanding of the time between the terminal and the network side, thereby reducing the possibility of deviation between the time of the terminal and the time of the network side.
附图说明Description of drawings
图1是本发明实施例提供的网络系统的结构图;1 is a structural diagram of a network system provided by an embodiment of the present invention;
图2是本发明实施例提供的参考时间信息的获取方法的流程图之一;2 is one of the flowcharts of the method for obtaining reference time information provided by an embodiment of the present invention;
图3是本发明实施例提供的SFN分布的示意图;3 is a schematic diagram of SFN distribution provided by an embodiment of the present invention;
图4是本发明实施例提供的参考时间信息的获取方法的流程图之二;4 is the second flow chart of the method for obtaining reference time information provided by an embodiment of the present invention;
图5是本发明实施例提供的信息收发方法的流程图;5 is a flowchart of a method for sending and receiving information provided by an embodiment of the present invention;
图6是本发明实施例提供的终端的结构示意图之一;6 is one of the schematic structural diagrams of a terminal provided by an embodiment of the present invention;
图7是本发明实施例提供的图6中参考时间信息计算模块的结构示意图;7 is a schematic structural diagram of a reference time information calculation module in FIG. 6 provided by an embodiment of the present invention;
图8是本发明实施例提供的终端的结构示意图之二;8 is a second schematic structural diagram of a terminal provided by an embodiment of the present invention;
图9是本发明实施例提供的网络侧设备的结构示意图;9 is a schematic structural diagram of a network side device provided by an embodiment of the present invention;
图10是本发明实施例提供的终端的硬件结构示意图;10 is a schematic diagram of a hardware structure of a terminal provided by an embodiment of the present invention;
图11是本发明实施例提供的网络侧设备的硬件结构示意图。FIG. 11 is a schematic diagram of a hardware structure of a network side device provided by an embodiment of the present invention.
具体实施方式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 with reference to 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 the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
本申请的说明书和权利要求书中的术语“包括”以及它的任何变形,意图在于覆盖不排他的包含,例如,包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元,而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。此外,说明书以及权利要求中使用“和/或”表示所连接对象的至少其中之一,例如A和/或B,表示包含单独A,单独B,以及A和B都存在三种情况。The term "comprising" and any variations thereof in the description and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to the explicit Those steps or units are explicitly listed, but may include other steps or units not expressly listed or inherent to the process, method, product or apparatus. In addition, the use of "and/or" in the description and the claims indicates at least one of the connected objects, such as A and/or B, indicating that there are three cases including A alone, B alone, and both A and B.
在本发明实施例中,“示例性的”或者“例如”等词用于表示作例子、例证或说明。本发明实施例中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其它实施例或设计方案更优选或更具优势。确切而言,使用“示例性的”或者“例如”等词旨在以具体方式呈现相关概念。In the embodiments of the present invention, words such as "exemplary" or "for example" are used to mean serving as an example, illustration or illustration. Any embodiments or designs described as "exemplary" or "such as" in the embodiments of the present invention should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present the related concepts in a specific manner.
下面结合附图介绍本发明的实施例。本发明提供的实施例可以应用于无线通信系统中。该无线通信系统可以为5G系统,或者演进型长期演进(Evolved Long TermEvolution,eLTE)系统,或者后续演进通信系统。Embodiments of the present invention will be described below with reference to the accompanying drawings. The embodiments provided by the present invention can be applied to a wireless communication system. The wireless communication system may be a 5G system, or an evolved long term evolution (Evolved Long Term Evolution, eLTE) system, or a subsequent evolution communication system.
图1是本发明实施例提供的一种网络系统的结构图,如图1所示,包括终端11、网络侧设备12,其中,终端11可以是移动通信设备,例如:可以是手机、平板电脑(TabletPersonal Computer)、膝上型电脑(Laptop Computer)、个人数字助理(personal digitalassistant,简称PDA)、移动上网装置(Mobile Internet Device,MID)或可穿戴式设备(Wearable Device)等,需要说明的是,在本发明实施例中并不限定终端11的具体类型。上述网络侧设备12可以是5G网络侧设备(例如:gNB、5G NR NB),或者可以是4G网络侧设备(例如:eNB),或者可以是3G网络侧设备(例如:NB),或者后续演进通信系统中的网络侧设备,等等,需要说明的是,在本发明实施例中并不限定网络侧设备12的具体类型。FIG. 1 is a structural diagram of a network system provided by an embodiment of the present invention. As shown in FIG. 1 , it includes a
图2是本发明实施例提供的应用于图1所示的网络系统的一种参考时间信息的获取方法的流程图。如图2所示,该方法包括以下步骤:FIG. 2 is a flowchart of a method for acquiring reference time information applied to the network system shown in FIG. 1 according to an embodiment of the present invention. As shown in Figure 2, the method includes the following steps:
步骤201:基于第一下行参考时间和第二下行参考时间,计算所述第二下行参考时间对应的参考时间信息;Step 201: Calculate reference time information corresponding to the second downlink reference time based on the first downlink reference time and the second downlink reference time;
其中,所述第二下行参考时间为:预配置、协议约定或者网络侧配置的且位于所述第一参考时间之后的下行参考时间;所述第一参考时间包括:在所述第二下行参考时间之前接收到的或者计算得出的参考时间信息对应的下行参考时间。Wherein, the second downlink reference time is: a downlink reference time pre-configured, agreed in a protocol or configured by the network side and located after the first reference time; the first reference time includes: the second downlink reference time The downlink reference time corresponding to the reference time information received or calculated before the time.
本实施例中,终端可以根据第二下行参考时间以及在第二下行参考时间之前的第一下行参考时间,计算第二下行参考时间对应的参考时间信息,从而可以根据在此之前的任意一次接收到的或者计算得到的参考时间信息获取新的参考时间信息,从而使得终端可以基于新获取的参考时间信息进行时间同步,以保证终端和网络侧的时间理解一致,进而降低终端的时间相对于网路侧的时间出现偏差的可能性。In this embodiment, the terminal can calculate the reference time information corresponding to the second downlink reference time according to the second downlink reference time and the first downlink reference time before the second downlink reference time, so that the terminal can calculate the reference time information corresponding to the second downlink reference time according to any previous downlink reference time. The received or calculated reference time information obtains new reference time information, so that the terminal can perform time synchronization based on the newly obtained reference time information, so as to ensure that the time understanding of the terminal and the network side is consistent, thereby reducing the time relative to the terminal. The possibility of time deviation on the network side.
例如,终端可以是在当前工作的服务小区根据网络侧设备发送的参考时间信息进行首次时间同步,在进行首次时间同步之后,终端可以根据该参考时间信息对应的下行参考时间(即第一下行参考时间)之后的下一个下行参考时间(即第二下行参考时间),计算得到可以用于第二次时间同步的新的参考时间信息;……,以及根据接收到的参考时间信息对应的下行参考时间或者计算得到的第2至N-1中任一个的下行参考时间对应的参考时间信息,计算得到用于第N次时间同步的新的参考时间信息,N为大于或者等于2的整数。当然,上述第2至N-1中任一个的下行参考时间,可以是网络侧发送的发送的参考时间信息对应的参考时间信息,在此并不限定。For example, the terminal may perform the first time synchronization in the currently working serving cell according to the reference time information sent by the network side device. After the first time synchronization, the terminal may perform the first time synchronization according to the downlink reference time corresponding to the reference time information (that is, the first downlink reference time). The next downlink reference time (that is, the second downlink reference time) after the reference time), calculate the new reference time information that can be used for the second time synchronization; ..., and the downlink corresponding to the received reference time information The reference time or the reference time information corresponding to any one of the calculated downlink reference times from 2 to N-1 is calculated to obtain new reference time information for the Nth time synchronization, where N is an integer greater than or equal to 2. Of course, the downlink reference time of any one of the second to N-1 above may be the reference time information corresponding to the transmitted reference time information sent by the network side, which is not limited herein.
其中,终端根据接收到网络侧设备发送的参考时间信息进行时间同步,可以是网络侧设备向终端发送用于指示参考时间信息的系统消息(如SIB16),协议约定终端接收到该参考时间信息对应的时间位置为:用于指示该参考时间信息的系统消息的系统消息发送窗口的结束边界所在的系统帧号的边界(System Frame Number,SFN)。The terminal performs time synchronization according to the reference time information sent by the network-side device, which may be a system message (such as SIB16) that the network-side device sends to the terminal to indicate the reference time information. The protocol stipulates that the terminal receives the reference time information corresponding to The time position of is: the boundary of the system frame number (System Frame Number, SFN) where the end boundary of the system message sending window of the system message of the reference time information is located.
例如,若终端接收到用于指示参考时间信息的SIB16(即系统消息)的时间位置为(SFN_2,Subframe_1),且该SIB16的系统消息发送窗口为10个子帧(Subframe)(即1个SFN中有10个子帧),则终端用于指示上述参考时间信息的SIB16的系统消息窗口的结束边界为(SFN_3,Subframe_1),即上述参考时间信息对应SFN_3的结束边界时间。For example, if the time position when the terminal receives the SIB16 (that is, the system message) used to indicate the reference time information is (SFN_2, Subframe_1), and the system message sending window of the SIB16 is 10 subframes (Subframe) (that is, in one SFN) There are 10 subframes), then the end boundary of the system message window of SIB16 used by the terminal to indicate the above reference time information is (SFN_3, Subframe_1), that is, the above reference time information corresponds to the end boundary time of SFN_3.
或者,也可以是网络侧设备通过单播消息(如无线资源控制配置(即RRCReconfiguration)消息等)将参考时间信息发送给终端,且该单播消息中携带一个参考SFN值,协议约定终端接收到的该参考时间信息对应的时间位置为:距离接收该参考时间信息最近的SFN为参考SFN值的系统帧结束边界。Alternatively, the network-side device may send the reference time information to the terminal through a unicast message (such as a radio resource control configuration (ie, RRCReconfiguration) message, etc.), and the unicast message carries a reference SFN value, and the protocol stipulates that the terminal receives the information. The time position corresponding to the reference time information is: the SFN closest to receiving the reference time information is the system frame end boundary of the reference SFN value.
例如,若终端接收到参考时间信息的位置为(SFN_2,subframe_1),且单播消息中携带的参考SFN值为SFN=3,则终端收到的参考时间信息与未来第一个SFN=3的系统帧结束边界对应。For example, if the location where the terminal receives the reference time information is (SFN_2, subframe_1), and the reference SFN value carried in the unicast message is SFN=3, the reference time information received by the terminal is the same as that of the first SFN=3 in the future. The system frame end boundary corresponds.
需要说明的是,上述参考时间信息是指绝对时间信息,例如,2020年2月7日8点58分25秒等;上述第一下行参考时间与上述第二下行参考时间是对应不同的绝对时间信息的任意下行参考时间,且下行参考时间可以包括SFN、子帧和时隙中的至少一项,即所述第一下行参考时间和所述第二下行参考时间均包括SFN、子帧和时隙(Slot)中的至少一项。It should be noted that the above reference time information refers to absolute time information, for example, 8:58:25 on February 7, 2020, etc.; the above-mentioned first downlink reference time and the above-mentioned second downlink reference time correspond to different absolute times. Any downlink reference time of the time information, and the downlink reference time may include at least one of SFN, subframe and time slot, that is, the first downlink reference time and the second downlink reference time both include SFN, subframe and at least one of the slot (Slot).
本实施例中,上述基于第一下行参考时间和第二下行参考时间,计算所述第二下行参考时间对应的参考时间信息,可以理解为终端根据第一下行参考时间和第二下行参考时间,确定第二下行参考时间的边界对应的时间位置,并更新第二下行参考时间对应的参考时间信息为确定的时间位置。然后,可以根据第二下行参考时间对应的参考时间信息调整终端的时钟,以实现时间同步。In this embodiment, the above-mentioned calculation of the reference time information corresponding to the second downlink reference time based on the first downlink reference time and the second downlink reference time can be understood that the terminal calculates the reference time information corresponding to the second downlink reference time according to the first downlink reference time and the second downlink reference time. time, determine the time position corresponding to the boundary of the second downlink reference time, and update the reference time information corresponding to the second downlink reference time to the determined time position. Then, the clock of the terminal may be adjusted according to the reference time information corresponding to the second downlink reference time, so as to realize time synchronization.
在一些实施方式中,上述基于第一下行参考时间和第二下行参考时间,计算所述第二下行参考时间对应的参考时间信息,可以包括:计算所述第一下行参考时间与所述第二下行参考时间之间的差值;基于所述差值,计算所述第二下行参考时间对应的参考时间信息,即终端可以根据第一下行参考时间与第二下行参考时间之间的差值确定第二下行参考时间的边界对应的时间位置,并对第二下行参考时间对应的参考时间信息进行更新,使得参考时间信息的计算复杂度降低。In some embodiments, calculating the reference time information corresponding to the second downlink reference time based on the first downlink reference time and the second downlink reference time may include: calculating the difference between the first downlink reference time and the The difference between the second downlink reference times; based on the difference, calculate the reference time information corresponding to the second downlink reference time, that is, the terminal can The difference determines the time position corresponding to the boundary of the second downlink reference time, and updates the reference time information corresponding to the second downlink reference time, so that the computational complexity of the reference time information is reduced.
需要说明的是,上述基于第一下行参考时间与第二下行参考时间之间的差值,计算所述第二下行参考时间对应的参考时间信息,可以是采用协议约定、预配置或者网络侧配置的计算公式,将差值作为该计算公式的输入量,计算得到第二下行参考时间的边界对应的时间位置。It should be noted that, the above-mentioned calculation of the reference time information corresponding to the second downlink reference time based on the difference between the first downlink reference time and the second downlink reference time may be based on a protocol agreement, a pre-configuration, or the network side. The configured calculation formula uses the difference as an input of the calculation formula, and calculates the time position corresponding to the boundary of the second downlink reference time.
由于上述第一下行参考时间和第二下行参考时间均包括SFN、子帧和时隙中的至少一项,在此进行多种情况的示例说明,具体如下;Since the above-mentioned first downlink reference time and second downlink reference time both include at least one of SFN, subframe, and time slot, examples of various situations are described here, and the details are as follows;
示例一,在上述第一下行参考时间和第二下行参考时间仅包括SFN的情况下,即如图3所示,终端在当前服务小区第一次接收到的参考时间信息referenceTime(1)对应SFN(1)的边界,若上述第一下行参考时间为SFN(m),SFN(m)对应的参考时间信息可以是接收到的(如SFN(1))或者计算得到的,则终端可以根据如下计算公式(1)计算得到第二下行参考时间中SFN(X)边界对应的时间位置,m和X均为正整数,且X大于m,其中:Example 1, in the case where the above-mentioned first downlink reference time and second downlink reference time only include SFN, that is, as shown in FIG. 3 , the reference time information referenceTime(1) received by the terminal for the first time in the current serving cell corresponds to The boundary of SFN(1), if the first downlink reference time is SFN(m), and the reference time information corresponding to SFN(m) can be received (such as SFN(1)) or calculated, then the terminal can The time position corresponding to the SFN(X) boundary in the second downlink reference time is calculated according to the following calculation formula (1), where m and X are both positive integers, and X is greater than m, where:
latestReferenceTime=latestReferenceTime=
referenceTime(m)+(SFN(X)-SFN(m))·sfnGranularity (1)referenceTime(m)+(SFN(X)-SFN(m)) sfnGranularity (1)
这里,referenceTime(m)对应SFN(m)的边界;Here, referenceTime(m) corresponds to the boundary of SFN(m);
latestReferenceTime表示SFN(X)边界对应的时间位置;latestReferenceTime represents the time position corresponding to the SFN(X) boundary;
sfnGranularity表示SFN对应的时间粒度(如,sfnGranularity为10ms等)。sfnGranularity represents the time granularity corresponding to the SFN (for example, sfnGranularity is 10ms, etc.).
示例二,在上述第一下行参考时间和第二下行参考时间包括SFN和subframe(即子帧)的情况下,即终端在当前服务小区第一次接收到的参考时间信息referenceTime(1)对应如图3中所示的SFN(1)中subframe(1)的边界,若上述第一下行参考时间为SFN(m)中subframe(k),则终端可以根据如下计算公式(2)计算得到第二下行参考时间中SFN(X)中subframe(y)边界对应的时间位置,k和y均为正整数,其中:Example 2, in the case where the above-mentioned first downlink reference time and second downlink reference time include SFN and subframe (ie subframe), that is, the reference time information referenceTime(1) received by the terminal for the first time in the current serving cell corresponds to As shown in Fig. 3, the boundary of subframe(1) in SFN(1), if the above-mentioned first downlink reference time is subframe(k) in SFN(m), the terminal can calculate it according to the following calculation formula (2) The time position corresponding to the boundary of subframe(y) in SFN(X) in the second downlink reference time, k and y are both positive integers, where:
latestReferenceTime=referenceTime(m)+(SFN(X)-SFN(m))·sfnGranularity+latestReferenceTime=referenceTime(m)+(SFN(X)-SFN(m)) sfnGranularity+
(subframe(y)-subframe(k))·subframeGranularity (2)(subframe(y)-subframe(k))·subframeGranularity (2)
这里,referenceTime(m)对应SFN(m)中subframe(k)的边界;Here, referenceTime(m) corresponds to the boundary of subframe(k) in SFN(m);
latestReferenceTime表示SFN(X)中subframe(y)边界对应的时间位置;latestReferenceTime represents the time position corresponding to the subframe(y) boundary in SFN(X);
subframeGranularity表示subframe对应的时间粒度(如1ms等)。subframeGranularity represents the time granularity (eg 1ms, etc.) corresponding to the subframe.
示例三,在上述第一下行参考时间和第二下行参考时间包括SFN和slot(即时隙)的情况下,即终端在当前服务小区第一次接收到的参考时间信息referenceTime(1)对应如图3中所示的SFN(1)中slot(1)的边界,若上述第一下行参考时间为SFN(m)中slot(i),则终端可以根据如下计算公式(3)计算得到第二下行参考时间中SFN(X)中slot(z)边界对应的时间位置,i和z均为正整数,其中:Example 3, in the case where the above-mentioned first downlink reference time and second downlink reference time include SFN and slot (ie slot), that is, the reference time information referenceTime(1) received by the terminal for the first time in the current serving cell corresponds to the following: For the boundary of slot(1) in SFN(1) shown in FIG. 3, if the above-mentioned first downlink reference time is slot(i) in SFN(m), the terminal can calculate the first downlink reference time according to the following calculation formula (3). The time position corresponding to the boundary of slot(z) in SFN(X) in the second downlink reference time, i and z are both positive integers, where:
latestReferenceTime=referenceTime(m)+latestReferenceTime=referenceTime(m)+
(SFN(X)-SFN(m))·sfnGranularity+(slot(z)-slot(i))·slotGranularity (3)(SFN(X)-SFN(m))·sfnGranularity+(slot(z)-slot(i))·slotGranularity (3)
这里,referenceTime(m)对应SFN(m)中subframe(i)的边界;Here, referenceTime(m) corresponds to the boundary of subframe(i) in SFN(m);
latestReferenceTime表示SFN(X)中slot(z)边界对应的时间位置;latestReferenceTime represents the time position corresponding to the slot(z) boundary in SFN(X);
slotGranularity表示slot对应的时间粒度(如0.5ms等)。slotGranularity represents the time granularity corresponding to the slot (such as 0.5ms, etc.).
由于SFN编号的取值范围有限,第二下行参考时间的SFN可能相对于第一下行参考时间的SFN发生至少一次SFN编号翻转,在一些实施方式中,所述基于所述差值,计算所述第二下行参考时间对应的参考时间信息,包括:基于所述差值和系统帧号SFN翻转次数,计算所述第二下行参考时间对应的参考时间信息;其中,所述SFN翻转次数为所述第二下行参考时间的SFN相较于所述第一下行参考时间的SFN发生翻转的次数,从而在第二下行参考时间的SFN相对于第一下行参考时间的SFN发生的情况下,可以准确地确定第二下行参考时间的边界对应的时间位置,保证计算得到的参考时间信息的准确度。Since the value range of the SFN number is limited, the SFN at the second downlink reference time may be reversed at least once with respect to the SFN at the first downlink reference time. The reference time information corresponding to the second downlink reference time includes: calculating the reference time information corresponding to the second downlink reference time based on the difference and the number of SFN inversions of the system frame number; wherein, the number of SFN inversions is the The number of times that the SFN of the second downlink reference time is flipped compared to the SFN of the first downlink reference time, so that when the SFN of the second downlink reference time is relative to the SFN of the first downlink reference time, The time position corresponding to the boundary of the second downlink reference time can be accurately determined to ensure the accuracy of the calculated reference time information.
例如,在上述第一下行参考时间和第二下行参考时间仅包括SFN的情况下,即如图3所示,终端在当前服务小区第一次接收到的参考时间信息referenceTime(1)对应SFN(1)的边界,若上述第一下行参考时间为SFN(m),且SFN(X)与SFN(m)比较发生了SFN编号翻转,则终端可以根据如下计算公式(4)计算得到第二下行参考时间中SFN(X)边界对应的时间位置,其中:For example, in the case where the above-mentioned first downlink reference time and second downlink reference time only include SFN, that is, as shown in FIG. 3 , the reference time information referenceTime(1) received by the terminal for the first time in the current serving cell corresponds to SFN (1) boundary, if the above-mentioned first downlink reference time is SFN(m), and SFN(X) is compared with SFN(m) and the SFN number is reversed, the terminal can calculate according to the following calculation formula (4) to obtain the first 2. The time position corresponding to the SFN(X) boundary in the downlink reference time, where:
latestReferenceTime=referenceTime(m)+latestReferenceTime=referenceTime(m)+
((SFN(X)-SFN(m))+maxSFN·numOfWrap)·sfnGranularity (4)((SFN(X)-SFN(m))+maxSFN·numOfWrap)·sfnGranularity (4)
这里,referenceTime(m)对应SFN(m)的边界;Here, referenceTime(m) corresponds to the boundary of SFN(m);
maxSFN标识SFN编号范围;maxSFN identifies the SFN number range;
numOfWrap标识SFN(x)相对于SFN(1)发生翻转的次数。numOfWrap identifies the number of times that SFN(x) has flipped relative to SFN(1).
需要说明的是,上述示例中仅以第一下行参考时间为终端在当前服务小区第一次接收到的参考时间信息对应的下行参考时间为例进行说明,而第一下行参考时间实际上可以是在上述第二下行参考时间之前的任一个下行参考时间。It should be noted that, in the above example, only the first downlink reference time is the downlink reference time corresponding to the reference time information first received by the terminal in the current serving cell as an example for description, and the first downlink reference time is actually It can be any downlink reference time before the above-mentioned second downlink reference time.
在一些实施方式中,上述第一下行参考时间可以为如下任一项:In some embodiments, the above-mentioned first downlink reference time may be any of the following:
所述终端第一次接收到或者计算得到的参考时间信息对应的下行参考时间;the downlink reference time corresponding to the reference time information received or calculated by the terminal for the first time;
计算所述差值时前一次接收到或者计算得到的参考时间信息对应的下行参考时间;The downlink reference time corresponding to the previously received or calculated reference time information when calculating the difference;
协议约定或网络配置的下行参考时间。The downlink reference time agreed by the protocol or configured by the network.
其中,上述终端第一次接收的参考时间信息,可以理解为:当终端首次接入目标小区时(如,连接态终端切换到目标小区,或空闲态终端重选到目标小区),首次从目标小区接收的参考时间信息;或者,终端在需要进行时间同步的时候,从目标小区接收的参考时间信息(如,通过读取系统信息获取的参考时间信息;或在发送参考时间请求信息后,网络侧设备通过专属信令发送给终端的参考时间信息)。The above-mentioned reference time information received by the terminal for the first time can be understood as: when the terminal accesses the target cell for the first time (for example, the connected state terminal switches to the target cell, or the idle state terminal reselects to the target cell), the The reference time information received by the cell; or, when the terminal needs to perform time synchronization, the reference time information received from the target cell (for example, the reference time information obtained by reading the system information; or after sending the reference time request information, the network Reference time information sent by the side device to the terminal through dedicated signaling).
另外,上述第二下行参考时间可以是在终端进行首次时间同步之后的任一下行参考时间,具体地,所述第二下行参考时间包括计算所述差值时的下行参考时间,或者,距离计算所述差值时的下行参考时间最近的下行参考时间,从而使终端可以更加及时地同步时间。In addition, the above-mentioned second downlink reference time may be any downlink reference time after the terminal performs time synchronization for the first time. Specifically, the second downlink reference time includes the downlink reference time when calculating the difference, or the distance calculation The difference is the downlink reference time closest to the downlink reference time, so that the terminal can synchronize time in a more timely manner.
例如,每一SFN包括时长为10ms的10个子帧,若终端在SFN(j)的第4个子帧的边界的时间位置(即4ms)计算上述差值,j为大于1的正整数,则上述第二下行参考时间可以为SFN(j-1)或SFN(j);若终端在SFN(j)的第7个子帧的边界的时间位置(即7ms)计算上述差值,则上述第二下行参考时间可以为SFN(j+1)或SFN(j)。For example, each SFN includes 10 subframes with a duration of 10ms. If the terminal calculates the above difference at the time position of the boundary of the fourth subframe of SFN(j) (ie, 4ms), and j is a positive integer greater than 1, then the above The second downlink reference time can be SFN(j-1) or SFN(j). The reference time may be SFN(j+1) or SFN(j).
需要说明的是,上述终端基于第一下行参考时间和第二下行参考时间,计算所述第二下行参考时间对应的参考时间信息,可以是在任意场景下进行,在此并不进行限定。It should be noted that the above-mentioned terminal calculates the reference time information corresponding to the second downlink reference time based on the first downlink reference time and the second downlink reference time, which may be performed in any scenario, which is not limited herein.
在一些实施方式中,上述基于第一下行参考时间和第二下行参考时间,计算所述第二下行参考时间对应的参考时间信息,包括:In some embodiments, the above-mentioned calculation of the reference time information corresponding to the second downlink reference time based on the first downlink reference time and the second downlink reference time includes:
在所述终端满足触发条件的情况下,基于第一下行参考时间和第二下行参考时间,计算所述第二下行参考时间对应的参考时间信息,其中,所述触发条件包括:In the case that the terminal satisfies the trigger condition, based on the first downlink reference time and the second downlink reference time, the reference time information corresponding to the second downlink reference time is calculated, wherein the trigger condition includes:
所述终端的内部时钟偏差大于或者等于时钟精度,例如,终端在接收到参考时间信息经过10s后其内部时钟偏差为1us,且时钟精度为1us;或者,The internal clock deviation of the terminal is greater than or equal to the clock precision. For example, after the terminal receives the reference time information for 10s, the internal clock deviation is 1us, and the clock precision is 1us; or,
所述终端的参考时间精度需求发生变更,例如,终端在接收到参考时间信息时终端的时间精度需求为10us,而当前终端的时间精度需求变更为1us;或者,The reference time precision requirement of the terminal is changed, for example, when the terminal receives the reference time information, the time precision requirement of the terminal is 10us, and the current time precision requirement of the terminal is changed to 1us; or,
接收到网络侧发送的同步指示信息,例如,网络侧设备发送1bit指示UE需要再次进行时间同步,具体地,网络侧设备指示SFN编号,终端将该SFN编号作为上述第二下行参考时间,并计算所述第二下行参考时间对应的参考时间信息。After receiving the synchronization indication information sent by the network side, for example, the network side device sends 1 bit to indicate that the UE needs to perform time synchronization again. Specifically, the network side device indicates the SFN number, and the terminal uses the SFN number as the above-mentioned second downlink reference time, and calculates Reference time information corresponding to the second downlink reference time.
这里,终端仅在满足上述触发条件的情况下,基于第一下行参考时间和第二下行参考时间,计算所述第二下行参考时间对应的参考时间信息,避免终端计算参考时间信息过于频繁,实现终端能耗的降低。Here, the terminal calculates the reference time information corresponding to the second downlink reference time based on the first downlink reference time and the second downlink reference time only when the above trigger conditions are met, so as to avoid the terminal calculating the reference time information too frequently, Realize the reduction of terminal energy consumption.
另外,在一些实施方式中,所述第一参考时间信息对应的小区与所述第二参考时间信息对应的小区相同,可以进一步保证计算得到的参考时间信息的准确性。In addition, in some embodiments, the cell corresponding to the first reference time information is the same as the cell corresponding to the second reference time information, which can further ensure the accuracy of the calculated reference time information.
例如,终端接收的参考时间信息(即该参考时间信息对应的下行参考时间为上述第一下行参考时间)对应为小区1,而终端当前的服务小区仍然包括小区1,即第二参考时间信息对应的小区为小区1,则终端可以基于第一下行参考时间和第二下行参考时间,计算第二下行参考时间对应的参考时间信息。当然,若终端当前的服务小区(或UE当前的主小区PCell或主辅小区PSCell)变更成了小区2,即第二参考时间信息对应的小区为小区2,则终端在发生时钟偏差的时候需要重新上报时间信息请求信息。For example, the reference time information received by the terminal (that is, the downlink reference time corresponding to the reference time information is the above-mentioned first downlink reference time) corresponds to
图4是本发明实施例提供的应用于图1所示的网络系统的另一种参考时间信息的获取方法。如图4所示,该方法包括如下步骤:FIG. 4 is another method for acquiring reference time information applied to the network system shown in FIG. 1 provided by an embodiment of the present invention. As shown in Figure 4, the method includes the following steps:
步骤401:向网络侧设备发送需求信息;Step 401: Send demand information to a network side device;
步骤402:接收所述网络侧设备基于所述需求信息发送的目标参考时间信息。Step 402: Receive target reference time information sent by the network side device based on the demand information.
这里,当终端需要再次通过接收网络侧设备发送的参考时间信息进行时间同步时,终端可以向网络侧设备发送需求信息,网络侧设备在接收到该需求信息时,网络侧设备响应于该需求信息向终端反馈目标参考时间信息,从而使终端根据自身需求及时指示网络侧设备发送参考时间信息,使得终端可以基于新接收到的目标参考时间信息进行时间同步,以保证终端和网络侧的时间理解一致,进而降低终端的时间相对于网路侧的时间出现偏差的可能性。Here, when the terminal needs to perform time synchronization by receiving the reference time information sent by the network-side device again, the terminal can send the demand information to the network-side device. When the network-side device receives the demand information, the network-side device responds to the demand information. Feedback the target reference time information to the terminal, so that the terminal can instruct the network side device to send the reference time information in time according to its own needs, so that the terminal can perform time synchronization based on the newly received target reference time information, so as to ensure that the terminal and the network side understand the same time. , thereby reducing the possibility that the time of the terminal deviates from the time of the network side.
本实施例中,上述需求信息可以是任何用于指示网络侧设备发送上述目标参考时间信息的信息,例如,上述需求信息是用于请求网络侧设备发送一次参考时间信息的信息,等等。In this embodiment, the above-mentioned requirement information may be any information used to instruct the network-side device to send the above-mentioned target reference time information, for example, the above-mentioned requirement information is information used to request the network-side device to send the reference time information once, and so on.
在一些实施方式中,上述需求信息可以包括如下至少一项:In some embodiments, the above-mentioned requirement information may include at least one of the following:
时间信息更新周期;Time information update cycle;
所述终端的时钟精度信息。Clock precision information of the terminal.
其中,在上述需求信息包括上述时间信息更新周期的情况下,网络侧设备在接收到上述需求信息之后,可以按照时间信息更新周期向终端周期性地发送参考时间信息,实现终端周期性地接收到网络侧设备发送的参考时间信息,并可以进行时间同步。In the case where the above-mentioned requirement information includes the above-mentioned time information update period, after receiving the above-mentioned requirement information, the network-side device may periodically send the reference time information to the terminal according to the time information update period, so that the terminal can periodically receive the reference time information. The reference time information sent by the device on the network side, and can perform time synchronization.
例如,上述时间信息更新周期可以是10s,即网络侧设备在接收到上述需求信息之后,间隔10s向网络侧设备发送一次参考时间信息,且终端可以根据每次接收的参考时间信息进行时间同步。For example, the above-mentioned time information update period may be 10s, that is, after receiving the above-mentioned demand information, the network-side device sends the reference time information to the network-side device at an interval of 10s, and the terminal can perform time synchronization according to the received reference time information each time.
另外,在上述需求信息包括上述终端的时钟精度信息的情况下,网络侧设备可以根据终端的时间精度信息灵活地向终端发送参考时间信息,例如,在上述终端的时钟精度信息为1us的情况下,若网络侧设备确定终端的内容时钟每10s会产生最大1us的误差,则网络侧设备可以间隔10s或者以小于10s的间隔时间向终端发送参考时间信息。In addition, in the case where the above-mentioned requirement information includes the above-mentioned clock precision information of the above-mentioned terminal, the network-side device may flexibly send the reference time information to the terminal according to the above-mentioned time precision information of the terminal, for example, in the case that the above-mentioned clock precision information of the above-mentioned terminal is 1us , if the network side device determines that the content clock of the terminal will have a maximum error of 1us every 10s, the network side device may send the reference time information to the terminal at intervals of 10s or less than 10s.
图5是本发明实施例提供的应用于图1所示的网络系统的信息收发方法的流程图。如图5所示,信息收发方法应用于网络侧设备,该方法包括以下步骤:FIG. 5 is a flowchart of an information sending and receiving method applied to the network system shown in FIG. 1 provided by an embodiment of the present invention. As shown in FIG. 5 , the method for sending and receiving information is applied to a network side device, and the method includes the following steps:
步骤501:接收终端发送的需求信息。Step 501: Receive demand information sent by the terminal.
步骤502:响应于所述需求信息,向所述终端发送目标参考时间信息。Step 502: In response to the demand information, send target reference time information to the terminal.
可选的,所述需求信息包括如下至少一项:Optionally, the requirement information includes at least one of the following:
时间信息更新周期;Time information update cycle;
所述终端的时钟精度信息。Clock precision information of the terminal.
需要说明的是,本发明实施例作为图5所示的实施例对应的网络侧设备的实施例,其具体的实施方式可以参见图4所示的实施例的相关说明,并能够达到相同的有益效果,为了避免重复说明,此处不再赘述。It should be noted that, the embodiment of the present invention is an embodiment of the network side device corresponding to the embodiment shown in FIG. 5 , and the specific implementation can refer to the relevant description of the embodiment shown in FIG. 4 , and the same beneficial effects can be achieved. Effects, in order to avoid repeated descriptions, are not repeated here.
图6是本发明实施例提供的一种终端的结构图,如图6所示,终端600包括:FIG. 6 is a structural diagram of a terminal provided by an embodiment of the present invention. As shown in FIG. 6 , the terminal 600 includes:
参考时间信息计算模块601,用于基于第一下行参考时间和第二下行参考时间,计算所述第二下行参考时间对应的参考时间信息;A reference time
其中,所述第二下行参考时间为:预配置、协议约定或者网络侧配置的且位于所述第一参考时间之后的下行参考时间;所述第一参考时间包括:在所述第二下行参考时间之前接收到的或者计算得出的参考时间信息对应的下行参考时间。Wherein, the second downlink reference time is: a downlink reference time pre-configured, agreed in a protocol or configured by the network side and located after the first reference time; the first reference time includes: the second downlink reference time The downlink reference time corresponding to the reference time information received or calculated before the time.
可选的,如图7所示,所述参考时间信息计算模块601,包括:Optionally, as shown in FIG. 7 , the reference time
计算单元6011,用于计算所述第一下行参考时间与所述第二下行参考时间之间的差值;a
参考时间信息计算单元6012,用于基于所述差值,计算所述第二下行参考时间对应的参考时间信息。A reference time
可选的,所述第二下行参考时间包括计算所述差值时的下行参考时间,或者,距离计算所述差值时的下行参考时间最近的下行参考时间。Optionally, the second downlink reference time includes a downlink reference time when the difference is calculated, or a downlink reference time closest to the downlink reference time when the difference is calculated.
可选的,所述参考时间信息计算单元6012,具体用于:Optionally, the reference time
基于所述差值和系统帧号SFN翻转次数,计算所述第二下行参考时间对应的参考时间信息;Calculate the reference time information corresponding to the second downlink reference time based on the difference and the number of times of system frame number SFN rollovers;
其中,所述SFN翻转次数为所述第二下行参考时间的SFN相较于所述第一下行参考时间的SFN发生翻转的次数。The number of times of SFN inversion is the number of times that the SFN of the second downlink reference time is inverted compared to the SFN of the first downlink reference time.
可选的,所述第一下行参考时间为如下任一项:Optionally, the first downlink reference time is any of the following:
所述终端第一次接收到或者计算得到的参考时间信息对应的下行参考时间;the downlink reference time corresponding to the reference time information received or calculated by the terminal for the first time;
计算所述差值时前一次接收到或者计算得到的参考时间信息对应的下行参考时间;The downlink reference time corresponding to the previously received or calculated reference time information when calculating the difference;
协议约定或网络配置的下行参考时间。The downlink reference time agreed by the protocol or configured by the network.
可选的,所述第一下行参考时间和所述第二下行参考时间均包括SFN、子帧和时隙中的至少一项。Optionally, both the first downlink reference time and the second downlink reference time include at least one of SFN, subframe and time slot.
可选的,所述参考时间信息计算模块601,具体用于:Optionally, the reference time
在所述终端满足触发条件的情况下,基于第一下行参考时间和第二下行参考时间,计算所述第二下行参考时间对应的参考时间信息,其中,所述触发条件包括:In the case that the terminal satisfies the trigger condition, based on the first downlink reference time and the second downlink reference time, the reference time information corresponding to the second downlink reference time is calculated, wherein the trigger condition includes:
所述终端的内部时钟偏差大于或者等于时钟精度;或者,The internal clock deviation of the terminal is greater than or equal to the clock precision; or,
所述终端的参考时间精度需求发生变更;或者,The reference time accuracy requirement of the terminal is changed; or,
接收到网络侧发送的同步指示信息。The synchronization indication information sent by the network side is received.
可选的,所述第一参考时间信息对应的小区与所述第二参考时间信息对应的小区相同。Optionally, the cell corresponding to the first reference time information is the same as the cell corresponding to the second reference time information.
需要说明的是,本发明实施例中上述终端600可以是图2所示的方法实施例中实施方式的终端,方法实施例中终端的任意实施方式都可以被本发明实施例中的上述终端600所实现,并达到相同的有益效果,为避免重复,此处不再赘述。It should be noted that, in this embodiment of the present invention, the above-mentioned
图8是本发明实施例提供的另一种终端的结构图,如图8所示,终端800包括:FIG. 8 is a structural diagram of another terminal provided by an embodiment of the present invention. As shown in FIG. 8 , the terminal 800 includes:
发送模块801,用于向网络侧设备发送需求信息;A sending
接收模块802,用于接收所述网络侧设备基于所述需求信息发送的目标参考时间信息。The receiving
可选的,所述需求信息包括如下至少一项:Optionally, the requirement information includes at least one of the following:
时间信息更新周期;Time information update cycle;
所述终端的时钟精度信息。Clock precision information of the terminal.
需要说明的是,本发明实施例中上述终端800可以是图4所示的方法实施例中实施方式的终端,图4所示的方法实施例中终端的任意实施方式都可以被本发明实施例中的上述终端800所实现,并达到相同的有益效果,为避免重复,此处不再赘述。It should be noted that, in this embodiment of the present invention, the above-mentioned
图9是本发明实施例提供的一种网络侧设备的结构图,如图9所示,网络侧设备900包括:FIG. 9 is a structural diagram of a network side device provided by an embodiment of the present invention. As shown in FIG. 9 , the
接收模块901,用于接收终端发送的需求信息;A receiving
发送模块902,用于响应于所述需求信息,向所述终端发送目标参考时间信息。The sending
可选的,所述需求信息包括如下至少一项:Optionally, the requirement information includes at least one of the following:
时间信息更新周期;Time information update cycle;
所述终端的时钟精度信息。Clock precision information of the terminal.
需要说明的是,本发明实施例中上述网络侧设备900可以是图4和图5所示的方法实施例中任意实施方式的网络侧设备,图4和图5所示的方法实施例中网络侧设备的任意实施方式都可以被本发明实施例中的上述网络侧设备800所实现,并达到相同的有益效果,为避免重复,此处不再赘述。It should be noted that, in this embodiment of the present invention, the above-mentioned network-
图10为实现本发明各个实施例的一种终端的硬件结构示意图,该终端1000包括但不限于:射频单元1001、网络模块1002、音频输出单元1003、输入单元1004、传感器1005、显示单元1006、用户输入单元1007、接口单元1008、存储器1009、处理器1010、以及电源1011等部件。本领域技术人员可以理解,图10中示出的终端结构并不构成对终端的限定,终端可以包括比图示更多或更少的部件,或者组合某些部件,或者不同的部件布置。在本发明实施例中,终端包括但不限于手机、平板电脑、笔记本电脑、掌上电脑、车载终端、可穿戴设备、以及计步器等。10 is a schematic diagram of the hardware structure of a terminal implementing various embodiments of the present invention. The terminal 1000 includes but is not limited to: a
其中,处理器1010用于:Wherein, the
基于第一下行参考时间和第二下行参考时间,计算所述第二下行参考时间对应的参考时间信息;calculating reference time information corresponding to the second downlink reference time based on the first downlink reference time and the second downlink reference time;
其中,所述第二下行参考时间为:预配置、协议约定或者网络侧配置的且位于所述第一参考时间之后的下行参考时间;所述第一参考时间包括:在所述第二下行参考时间之前接收到的或者计算得出的参考时间信息对应的下行参考时间。Wherein, the second downlink reference time is: a downlink reference time pre-configured, agreed in a protocol or configured by the network side and located after the first reference time; the first reference time includes: the second downlink reference time The downlink reference time corresponding to the reference time information received or calculated before the time.
可选的,处理器1010还用于:Optionally, the
计算所述第一下行参考时间与所述第二下行参考时间之间的差值;calculating the difference between the first downlink reference time and the second downlink reference time;
基于所述差值,计算所述第二下行参考时间对应的参考时间信息。Based on the difference value, the reference time information corresponding to the second downlink reference time is calculated.
可选的,所述第二下行参考时间包括计算所述差值时的下行参考时间,或者,距离计算所述差值时的下行参考时间最近的下行参考时间。Optionally, the second downlink reference time includes a downlink reference time when the difference is calculated, or a downlink reference time closest to the downlink reference time when the difference is calculated.
可选的,处理器1010还用于:Optionally, the
基于所述差值和系统帧号SFN翻转次数,计算所述第二下行参考时间对应的参考时间信息;Calculate the reference time information corresponding to the second downlink reference time based on the difference and the number of times of system frame number SFN rollovers;
其中,所述SFN翻转次数为所述第二下行参考时间的SFN相较于所述第一下行参考时间的SFN发生翻转的次数。The number of times of SFN inversion is the number of times that the SFN of the second downlink reference time is inverted compared to the SFN of the first downlink reference time.
可选的,所述第一下行参考时间为如下任一项:Optionally, the first downlink reference time is any of the following:
所述终端第一次接收到或者计算得到的参考时间信息对应的下行参考时间;the downlink reference time corresponding to the reference time information received or calculated by the terminal for the first time;
计算所述差值时前一次接收到或者计算得到的参考时间信息对应的下行参考时间;The downlink reference time corresponding to the previously received or calculated reference time information when calculating the difference;
协议约定或网络配置的下行参考时间。The downlink reference time agreed by the protocol or configured by the network.
可选的,所述第一下行参考时间和所述第二下行参考时间均包括SFN、子帧和时隙中的至少一项。Optionally, both the first downlink reference time and the second downlink reference time include at least one of SFN, subframe and time slot.
可选的,处理器1010还用于:Optionally, the
在所述终端满足触发条件的情况下,基于第一下行参考时间和第二下行参考时间,计算所述第二下行参考时间对应的参考时间信息,其中,所述触发条件包括:In the case that the terminal satisfies the trigger condition, based on the first downlink reference time and the second downlink reference time, the reference time information corresponding to the second downlink reference time is calculated, wherein the trigger condition includes:
所述终端的内部时钟偏差大于或者等于时钟精度;或者,The internal clock deviation of the terminal is greater than or equal to the clock precision; or,
所述终端的参考时间精度需求发生变更;或者,The reference time accuracy requirement of the terminal is changed; or,
接收到网络侧发送的同步指示信息。The synchronization indication information sent by the network side is received.
可选的,所述第一参考时间信息对应的小区与所述第二参考时间信息对应的小区相同。Optionally, the cell corresponding to the first reference time information is the same as the cell corresponding to the second reference time information.
或者,射频单元1001用于Alternatively, the
向网络侧设备发送需求信息;Send demand information to network-side equipment;
接收所述网络侧设备基于所述需求信息发送的目标参考时间信息。The target reference time information sent by the network side device based on the demand information is received.
可选的,所述需求信息包括如下至少一项:Optionally, the requirement information includes at least one of the following:
时间信息更新周期;Time information update cycle;
所述终端的时钟精度信息。Clock precision information of the terminal.
应理解的是,本发明实施例中,射频单元1001可用于收发信息或通话过程中,信号的接收和发送,具体的,将来自基站的下行数据接收后,给处理器1010处理;另外,将上行的数据发送给基站。通常,射频单元1001包括但不限于天线、至少一个放大器、收发信机、耦合器、低噪声放大器、双工器等。此外,射频单元1001还可以通过无线通信系统与网络和其他设备通信。It should be understood that, in this embodiment of the present invention, the
终端通过网络模块1002为用户提供了无线的宽带互联网访问,如帮助用户收发电子邮件、浏览网页和访问流式媒体等。The terminal provides the user with wireless broadband Internet access through the
音频输出单元1003可以将射频单元1001或网络模块1002接收的或者在存储器1009中存储的音频数据转换成音频信号并且输出为声音。而且,音频输出单元1003还可以提供与终端1000执行的特定功能相关的音频输出(例如,呼叫信号接收声音、消息接收声音等等)。音频输出单元1003包括扬声器、蜂鸣器以及受话器等。The
输入单元1004用于接收音频或视频信号。输入单元1004可以包括图形处理器(Graphics Processing Unit,GPU)10041和麦克风10042,图形处理器10041对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。处理后的图像帧可以显示在显示单元1006上。经图形处理器10041处理后的图像帧可以存储在存储器1009(或其它存储介质)中或者经由射频单元1001或网络模块1002进行发送。麦克风10042可以接收声音,并且能够将这样的声音处理为音频数据。处理后的音频数据可以在电话通话模式的情况下转换为可经由射频单元1001发送到移动通信基站的格式输出。The
终端1000还包括至少一种传感器1005,比如光传感器、运动传感器以及其他传感器。具体地,光传感器包括环境光传感器及接近传感器,其中,环境光传感器可根据环境光线的明暗来调节显示面板10061的亮度,接近传感器可在终端1000移动到耳边时,关闭显示面板10061以及背光。作为运动传感器的一种,加速计传感器可检测各个方向上(一般为三轴)加速度的大小,静止时可检测出重力的大小及方向,可用于识别终端姿态(比如横竖屏切换、相关游戏、磁力计姿态校准)、振动识别相关功能(比如计步器、敲击)等;传感器1005还可以包括指纹传感器、压力传感器、虹膜传感器、分子传感器、陀螺仪、气压计、湿度计、温度计、红外线传感器等,在此不再赘述。The terminal 1000 also includes at least one
显示单元1006用于显示由用户输入的信息或提供给用户的信息。显示单元1006可包括显示面板10061,可以采用液晶显示器(Liquid Crystal Display,LCD)、有机发光二极管(Organic Light-Emitting Diode,OLED)等形式来配置显示面板10061。The
用户输入单元1007可用于接收输入的数字或字符信息,以及产生与终端的用户设置以及功能控制有关的键信号输入。具体地,用户输入单元1007包括触控面板10071以及其他输入设备10072。触控面板10071,也称为触摸屏,可收集用户在其上或附近的触摸操作(比如用户使用手指、触笔等任何适合的物体或附件在触控面板10071上或在触控面板10071附近的操作)。触控面板10071可包括触摸检测装置和触摸控制器两个部分。其中,触摸检测装置检测用户的触摸方位,并检测触摸操作带来的信号,将信号传送给触摸控制器;触摸控制器从触摸检测装置上接收触摸信息,并将它转换成触点坐标,再送给处理器1010,接收处理器1010发来的命令并加以执行。此外,可以采用电阻式、电容式、红外线以及表面声波等多种类型实现触控面板10071。除了触控面板10071,用户输入单元1007还可以包括其他输入设备10072。具体地,其他输入设备10072可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆,在此不再赘述。The
进一步的,触控面板10071可覆盖在显示面板10071上,当触控面板10071检测到在其上或附近的触摸操作后,传送给处理器1010以确定触摸事件的类型,随后处理器1010根据触摸事件的类型在显示面板10061上提供相应的视觉输出。虽然在图10中,触控面板10071与显示面板10061是作为两个独立的部件来实现终端的输入和输出功能,但是在某些实施例中,可以将触控面板10071与显示面板10061集成而实现终端的输入和输出功能,具体此处不做限定。Further, the
接口单元1008为外部装置与终端1000连接的接口。例如,外部装置可以包括有线或无线头戴式耳机端口、外部电源(或电池充电器)端口、有线或无线数据端口、存储卡端口、用于连接具有识别模块的装置的端口、音频输入/输出(I/O)端口、视频I/O端口、耳机端口等等。接口单元1008可以用于接收来自外部装置的输入(例如,数据信息、电力等等)并且将接收到的输入传输到终端1000内的一个或多个元件或者可以用于在终端1000和外部装置之间传输数据。The
存储器1009可用于存储软件程序以及各种数据。存储器1009可主要包括存储程序区和存储数据区,其中,存储程序区可存储操作系统、至少一个功能所需的应用程序(比如声音播放功能、图像播放功能等)等;存储数据区可存储根据手机的使用所创建的数据(比如音频数据、电话本等)等。此外,存储器1009可以包括高速随机存取存储器,还可以包括非易失性存储器,例如至少一个磁盘存储器件、闪存器件、或其他易失性固态存储器件。The
处理器1010是终端的控制中心,利用各种接口和线路连接整个终端的各个部分,通过运行或执行存储在存储器1009内的软件程序以及模块,以及调用存储在存储器1009内的数据,执行终端的各种功能和处理数据,从而对终端进行整体监控。处理器1010可包括一个或多个处理单元;优选的,处理器1010可集成应用处理器和调制解调处理器,其中,应用处理器主要处理操作系统、用户界面和应用程序等,调制解调处理器主要处理无线通信。可以理解的是,上述调制解调处理器也可以不集成到处理器1010中。The
终端1000还可以包括给各个部件供电的电源1011(比如电池),优选的,电源1011可以通过电源管理系统与处理器1010逻辑相连,从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。The terminal 1000 may also include a power supply 1011 (such as a battery) that supplies power to various components. Preferably, the
另外,终端1000包括一些未示出的功能模块,在此不再赘述。In addition, the terminal 1000 includes some unshown functional modules, which are not repeated here.
优选的,本发明实施例还提供一种终端,包括处理器1010,存储器1009,存储在存储器1009上并可在所述处理器1010上运行的计算机程序,该计算机程序被处理器1010执行时实现上述参考时间信息的获取方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。Preferably, an embodiment of the present invention further provides a terminal, including a
需要说明的是,本实施例中上述终端1000可以是本发明实施例中方法实施例中任意实施方式的终端,本发明实施例中方法实施例中终端的任意实施方式都可以被本实施例中的上述终端1000所实现,以及达到相同的有益效果,此处不再赘述。It should be noted that, in this embodiment, the above-mentioned terminal 1000 may be a terminal of any implementation mode in the method embodiment in this embodiment of the present invention, and any implementation mode of the terminal in the method embodiment in this embodiment of the present invention may be used in this embodiment. The above-mentioned terminal 1000 realizes and achieves the same beneficial effects, which will not be repeated here.
图11是本发明实施例提供的一种网络侧设备的结构图。如图11所示,网络侧设备1100包括:处理器1101、收发机1102、存储器1103和总线接口,其中:FIG. 11 is a structural diagram of a network side device according to an embodiment of the present invention. As shown in FIG. 11, the
收发机1102用于:
接收终端发送的需求信息;Receive the demand information sent by the terminal;
响应于所述需求信息,向所述终端发送目标参考时间信息。In response to the demand information, target reference time information is sent to the terminal.
可选的,所述需求信息包括如下至少一项:Optionally, the requirement information includes at least one of the following:
时间信息更新周期;Time information update cycle;
所述终端的时钟精度信息。Clock precision information of the terminal.
在图11中,总线架构可以包括任意数量的互联的总线和桥,具体由处理器1101代表的一个或多个处理器和存储器1103代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本文不再对其进行进一步描述。总线接口提供接口。收发机1102可以是多个元件,即包括发送机和接收机,提供用于在传输介质上与各种其他装置通信的单元。针对不同的终端,用户接口1104还可以是能够外接内接需要设备的接口,连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。In FIG. 11 , the bus architecture may include any number of interconnected buses and bridges, in particular one or more processors represented by
处理器1101负责管理总线架构和通常的处理,存储器1103可以存储处理器1101在执行操作时所使用的数据。The
需要说明的是,本实施例中上述网络侧设备1100可以是本发明实施例中方法实施例中任意实施方式的网络侧设备,本发明实施例中方法实施例中网络侧设备的任意实施方式都可以被本实施例中的上述网络侧设备1100所实现,以及达到相同的有益效果,此处不再赘述。It should be noted that the above-mentioned network-
本发明实施例还提供一种计算机可读存储介质,计算机可读存储介质上存储有计算机程序,该计算机程序被处理器执行时实现上述对应于终端或者网络侧的实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。其中,所述的计算机可读存储介质,如只读存储器(Read-Only Memory,简称ROM)、随机存取存储器(Random AccessMemory,简称RAM)、磁碟或者光盘等。Embodiments of the present invention further provide a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, each process of the foregoing embodiments corresponding to the terminal or the network side is implemented, and can To achieve the same technical effect, in order to avoid repetition, details are not repeated here. The computer-readable storage medium is, for example, a read-only memory (Read-Only Memory, ROM for short), a random access memory (Random Access Memory, RAM for short), a magnetic disk or an optical disk, and the like.
需要说明的是,在本文中,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。It should be noted that, herein, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements, It also includes other elements not expressly listed or inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element.
通过以上的实施方式的描述,本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现,当然也可以通过硬件,但很多情况下前者是更佳的实施方式。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(如ROM/RAM、磁碟、光盘)中,包括若干指令用以使得一台终端(可以是手机,计算机,服务器,空调器,或者网络设备等)执行本发明各个实施例所述的方法。From the description of the above embodiments, those skilled in the art can clearly understand that the method of the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is better implementation. Based on this understanding, the technical solutions of the present invention can be embodied in the form of software products in essence or the parts that make contributions to the prior art, and the computer software products are stored in a storage medium (such as ROM/RAM, magnetic disk, CD), including several instructions to make a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the methods described in the various embodiments of the present invention.
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 are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention. should be included within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.
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CN108736999A (en) * | 2017-04-18 | 2018-11-02 | 华为技术有限公司 | A kind of method for synchronizing time and device |
CN106941702A (en) * | 2017-04-19 | 2017-07-11 | 上海创远仪器技术股份有限公司 | The method for realizing the detection control of mobile communication terminal switching time |
CN109391390A (en) * | 2017-08-08 | 2019-02-26 | 华为技术有限公司 | Obtain the method and relevant device of timing offset |
CN110611930A (en) * | 2018-06-15 | 2019-12-24 | 维沃移动通信有限公司 | A measurement result acquisition method, information transmission method and device |
Cited By (1)
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WO2023051620A1 (en) * | 2021-09-30 | 2023-04-06 | 华为技术有限公司 | Communication method, communication apparatus and communication system |
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