WO2015024183A1

WO2015024183A1 - Signal transmission method, device and system

Info

Publication number: WO2015024183A1
Application number: PCT/CN2013/081846
Authority: WO
Inventors: 刘玉华
Original assignee: 华为技术有限公司
Priority date: 2013-08-20
Filing date: 2013-08-20
Publication date: 2015-02-26
Also published as: CN104770023A

Abstract

A signal transmission method, comprising: monitoring a base station load; if it is monitored that the base station load is less than a preset first load threshold value, reducing the number of downlink preamble time slots of a special subframe according to the base station load, so as to enter an energy-saving mode of the special subframe; and carrying out signal transmission by using the adjusted special subframe in the energy-saving mode of the special subframe. In addition, further provided are a corresponding device and system.

Description

一种信号传输方法、装置和*** Signal transmission method, device and system

技术领域 Technical field

本发明涉及通信技术领域，具体涉及一种信号传输方法、装置和***。 The present invention relates to the field of communications technologies, and in particular, to a signal transmission method, apparatus, and system.

背景技术 Background technique

随着科学技术的发展，节能的理念也越来越深入人心，在通信领域亦如是。基站，是网络通信中的一个基础设备，降低基站能耗，有利于减少整个网络的能量消耗，因此，如何实现基站节能，逐渐成为运营商所关注的问题。 With the development of science and technology, the concept of energy conservation has become more and more popular among people, and it is also true in the field of communication. The base station is a basic device in network communication, which reduces the energy consumption of the base station and helps reduce the energy consumption of the entire network. Therefore, how to achieve energy saving of the base station has gradually become a concern of operators.

在现有技术中，主要从信号传输方面来实现基站的节能，例如，一般可以采用多播 /组播单频网络 ( MBSFN , Multicast Broadcast Single Frequency Network) 子帧关断方案来实现基站的节能，即在业务空闲时段，将普通下行子帧配置为 MBSFN子帧，这样就可以只在符号 #0 ( Symbol #0 )发送参考信号，而其他没有业务的 Symbol的功放则可以关闭，从而减少下行 Symbol所需要消耗的功率，进而使得基站整体的能耗减少。 In the prior art, energy saving of the base station is implemented mainly from the aspect of signal transmission. For example, a multicast broadcast single frequency network (MBSFN) sub-frame shutdown scheme can be generally used to implement energy saving of the base station. That is, in the idle period of the service, the normal downlink subframe is configured as an MBSFN subframe, so that the reference signal can be sent only in symbol #0 (Symbol #0), and the power amplifier of other Symbol without the service can be turned off, thereby reducing the downlink Symbol. The power that is required to be consumed, thereby reducing the overall energy consumption of the base station.

当前 MBSFN子帧关断的节能方案主要是针对频分双工长期演进（ LTE FDD, Long Term Evolution Frequency Division Duplexing ) ***, 因此只考虑普通的下行子帧，而由于时分双工长期演进（ TDD LTE, Time Division Duplexing Long Term Evolution ) ***中存在有特殊子帧，该特殊子帧与 LTE FDD制式中的普通子帧不同，因此，现有的方案并不适用于 TDD LTE***。 The current energy-saving scheme for MBSFN subframe shutdown is mainly for the Long Term Evolution Frequency Division Duplexing (LTE FDD) system, so only ordinary downlink subframes are considered, and long-term evolution of time division duplex (TDD LTE) , Time Division Duplexing Long Term Evolution ) There are special subframes in the system. This special subframe is different from the normal subframe in the LTE FDD system. Therefore, the existing scheme is not applicable to the TDD LTE system.

发明内容 Summary of the invention

本发明实施例提供一种信号传输方法，可以实现基站节能。 Embodiments of the present invention provide a signal transmission method, which can implement energy saving of a base station.

第一方面，本发明实施例提供一种信号传输方法，包括： In a first aspect, an embodiment of the present invention provides a signal transmission method, including:

对基站负载进行监测； Monitoring the base station load;

若监测到基站负载小于预置的第一负载阈值，则根据基站负载下调特殊子帧的下行前导时隙的数目，以进入特殊子帧节能模式； If the base station load is less than the preset first load threshold, the number of downlink preamble slots of the special subframe is adjusted according to the load of the base station to enter the special subframe energy saving mode;

在特殊子帧节能模式下，利用调整后的特殊子帧进行信号传输。 In the special subframe power saving mode, the adjusted special subframe is used for signal transmission.

在第一种可能的实施方式中，结合第一方面，所述根据基站负载下调特殊子帧的下行前导时隙的数目，包括： In a first possible implementation, in combination with the first aspect, the determining, by the base station load, the number of downlink preamble slots of the special subframe, including:

根据基站负载下调特殊子帧的下行前导时隙（ DwPTS , Downlink Pilot Time Slot ) 的数目，使得所述下行前导时隙的数目大于等于 1小于等于 10。在第二种可能的实施方式中，结合第一方面，所述对基站负载进行监测之前，还包括： The number of the downlink preamble slots (DwPTS, Downlink Pilot Time Slot) of the special subframe is adjusted according to the load of the base station, so that the number of the downlink preamble slots is greater than or equal to 1 and less than or equal to 10. In a second possible implementation, in combination with the first aspect, before the monitoring of the base station load, the method further includes:

在满足普通子帧节能模式的条件时，进入普通子帧节能模式； When the condition of the normal sub-frame energy-saving mode is met, the normal sub-frame energy-saving mode is entered;

则所述对基站负载进行监测具体为：在普通子帧节能模式下，对基站负载进行监测。 The monitoring of the base station load is specifically: monitoring the base station load in the normal subframe energy saving mode.

在第三种可能的实施方式中，结合第一方面、第一方面的第一或第二种可能的实施方式，所述利用调整后的特殊子帧进行信号传输之后，还包括：若监测到基站负载大于预置的第二负载阈值，则退出特殊子帧节能模式。在第三种可能的实施方式中，结合第一方面或第一方面的第一种可能的实施方式， In a third possible implementation, in combination with the first aspect, the first or the second possible implementation manner of the first aspect, after performing the signal transmission by using the adjusted special subframe, the method further includes: When the base station load is greater than the preset second load threshold, the special subframe energy saving mode is exited. In a third possible implementation, in combination with the first aspect or the first possible implementation of the first aspect,

所述对基站负载进行监测包括：在节能时段内，对基站负载进行监测；所述利用调整后的特殊子帧进行信号传输之后，还包括：确定当前时间不属于预置的节能时段内时，退出特殊子帧节能模式。 The monitoring of the load of the base station includes: monitoring the load of the base station during the energy-saving period; after the signal transmission by using the adjusted special subframe, the method further includes: determining that the current time does not belong to the preset energy-saving period, Exit the special sub-frame energy saving mode.

第二方面，本发明实施例提供一种信号传输装置，包括监测单元、调整单元和传输单元； In a second aspect, an embodiment of the present invention provides a signal transmission apparatus, including a monitoring unit, an adjustment unit, and a transmission unit;

监测单元，用于对基站负载进行监测； a monitoring unit for monitoring base station load;

调整单元，用于在监测到基站负载小于预置的第一负载阈值时，根据基站负载下调特殊子帧的下行前导时隙的数目，以进入特殊子帧节能模式； The adjusting unit is configured to: when monitoring that the base station load is less than the preset first load threshold, reduce the number of downlink preamble slots of the special subframe according to the base station load, to enter the special subframe energy saving mode;

传输单元，用于在特殊子帧节能模式下，利用调整后的特殊子帧进行信号传输。 The transmission unit is configured to perform signal transmission by using the adjusted special subframe in the special subframe energy-saving mode.

在第一种可能的实施方式中，结合第二方面，所述调整单元，具体用于根据基站负载下调特殊子帧的下行前导时隙的数目，使得所述下行前导时隙的数目大于等于 1小于等于 10。 In a first possible implementation, in combination with the second aspect, the adjusting unit is specifically configured to: according to the load of the base station, reduce the number of downlink preamble slots of the special subframe, so that the number of the downlink preamble slots is greater than or equal to 1 Less than or equal to 10.

在第二种可能的实施方式中，结合第二方面，所述信号传输装置还包括处理单元； In a second possible implementation, in combination with the second aspect, the signal transmission device further includes a processing unit;

所述处理单元，用于在满足普通子帧节能模式的条件时，进入普通子帧节能模式； The processing unit is configured to enter a normal subframe energy saving mode when a condition of the normal subframe energy saving mode is met;

所述监测单元，具体在普通子帧节能模式下，对基站负载进行监测。在第三种可能的实施方式中，结合第二方面、第二方面的第一或第二种可能的实施方式，所述调整单元，还用于在监测到基站负载大于预置的第二负载阈值时，退出特殊子帧节能模式。 The monitoring unit specifically monitors the base station load in a normal subframe energy saving mode. In a third possible implementation, the second aspect, the first or second In an implementation manner, the adjusting unit is further configured to exit the special subframe energy saving mode when detecting that the base station load is greater than a preset second load threshold.

所述调整单元，还用于在监测到基站负载大于预置的第二负载阈值时，退出特殊子帧节能模式。 The adjusting unit is further configured to: when detecting that the base station load is greater than a preset second load threshold, exiting the special subframe energy saving mode.

在第四种可能的实施方式中，结合第二方面或第二方面的第一种可能的实施方式，其中： In a fourth possible embodiment, in combination with the second aspect or the first possible embodiment of the second aspect, wherein:

所述监测单元，具体用于在节能时段内，对基站负载进行监测； The monitoring unit is specifically configured to monitor a base station load during an energy saving period;

所述调整单元，还用于确定当前时间不属于预置的节能时段内时，退出特殊子帧节能模式。 The adjusting unit is further configured to: when the current time does not belong to the preset energy saving period, exit the special subframe energy saving mode.

第三方面，本发明实施例还提供一种通信***，包括本发明实施提供的任一种信号传输装置。 In a third aspect, an embodiment of the present invention further provides a communication system, including any of the signal transmission devices provided by the implementation of the present invention.

第四方面，本发明实施例还提供一种基站，包括用于存储数据的存储器、用于收发数据的收发设备和处理器，其中： In a fourth aspect, an embodiment of the present invention further provides a base station, including a memory for storing data, a transceiver device for transmitting and receiving data, and a processor, where:

处理器，用于对基站负载进行监测，在监测到基站负载小于预置的第一负载阈值时，根据基站负载下调特殊子帧的下行前导时隙的数目，以进入特殊子帧节能模式，并在特殊子帧节能模式下，利用调整后的特殊子帧进行信号传输。 a processor, configured to monitor a base station load, and when the base station load is less than a preset first load threshold, reduce the number of downlink preamble slots of the special subframe according to the load of the base station, to enter a special subframe energy saving mode, and In the special subframe energy-saving mode, the adjusted special subframe is used for signal transmission.

在第一种可能的实施方式中，结合第四方面，所述处理器，还用于在监测到基站负载大于预置的第二负载阈值时，退出特殊子帧节能模式。 In a first possible implementation, in combination with the fourth aspect, the processor is further configured to exit the special subframe power saving mode when detecting that the base station load is greater than a preset second load threshold.

在第一种可能的实施方式中，结合第四方面，所述处理器，还用于在节能时段内，对基站负载进行监测，以及在确定当前时间不属于预置的节能时段内时，退出特殊子帧节能模式。 In a first possible implementation, in combination with the fourth aspect, the processor is further configured to: monitor, during a power saving period, a base station load, and exit when determining that the current time does not belong to a preset energy saving period Special subframe energy saving mode.

本发明实施例采用对基站负载进行监测，在监测到基站负载小于预置的第一负载阈值时，根据基站负载下调特殊子帧的下行前导时隙的数目，以进入特殊子帧节能模式，并在特殊子帧节能模式下，利用调整后的特殊子帧进行信号传输；由于该方案在基站负载较小的时候，可以减少特殊子帧的下行前导时隙的数目，因此，可以减少特殊子帧所需要消耗的功率，进而使得基站整体的能耗减少，该方案可以适用于 TDD LTE***中的特殊子帧，可以实现 TDD LTE ***中的基站节能。附图说明 The embodiment of the present invention monitors the load of the base station, and when the load of the base station is less than the preset first load threshold, the number of downlink preamble slots of the special subframe is adjusted according to the load of the base station, to enter the special subframe energy-saving mode, and In the special subframe energy-saving mode, the adjusted special subframe is used for signal transmission; since the scheme reduces the number of downlink preamble slots of the special subframe when the base station load is small, the special subframe can be reduced. The power consumption is required to reduce the overall energy consumption of the base station. The solution can be applied to special subframes in the TDD LTE system, and the base station can save energy in the TDD LTE system. DRAWINGS

为了更清楚地说明本发明实施例或现有技术中的技术方案，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，对于本领域技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。 In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description It is only some embodiments of the present invention, and those skilled in the art can obtain other drawings according to these drawings without any creative work.

图 1是本发明实施例提供的 TDD LTE***中的信号传输方法的流程图；图 2a是本发明实施例提供的 TDD LTE***中的信号传输方法的另一流程图； 1 is a flowchart of a signal transmission method in a TDD LTE system according to an embodiment of the present invention; and FIG. 2 is another flowchart of a signal transmission method in a TDD LTE system according to an embodiment of the present invention;

图 2b是本发明实施例中特殊子帧的结构示意图； 2b is a schematic structural diagram of a special subframe in the embodiment of the present invention;

图 3是本发明实施例提供的 TDD LTE***中的信号传输方法的又一流程图； FIG. 3 is still another flowchart of a signal transmission method in a TDD LTE system according to an embodiment of the present disclosure;

图 4是本发明实施例提供的 TDD LTE***中的信号传输装置的结构示意图； 4 is a schematic structural diagram of a signal transmission apparatus in a TDD LTE system according to an embodiment of the present invention;

图 5是本发明实施例提供的基站的结构示意图。 FIG. 5 is a schematic structural diagram of a base station according to an embodiment of the present invention.

具体实施方式 detailed description

下面将结合本发明实施例中的 9644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，所描述的实施例仅仅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 are clearly and completely described in conjunction with the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by a person skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

本发明实施例提供一种信号传输方法、装置和***。以下分别进行详细说明。实施例一、 Embodiments of the present invention provide a signal transmission method, apparatus, and system. The following is a detailed description. Embodiment 1

本实施例将从 TDD LTE***中的信号传输装置的角度进行描述，该 TDD LTE***中的信号传输装置具体可以集成在基站等设备中。 The present embodiment will be described from the perspective of a signal transmission device in a TDD LTE system, and the signal transmission device in the TDD LTE system may be specifically integrated in a device such as a base station.

一种 TDD LTE***中的信号传输方法，包括：对基站负载进行监测；若监测到基站负载小于预置的第一负载阈值，则根据基站负载下调特殊子帧的下行前导时隙（DwPTS, Downlink Pilot Time Slot ) 的数目，以进入特殊子帧节能模式；在特殊子帧节能模式下，利用调整后的特殊子帧进行信号传输。如图 1所示，具体流程可以如下： A signal transmission method in a TDD LTE system, comprising: monitoring a base station load; if the monitored base station load is less than a preset first load threshold, the downlink preamble time slot of the special subframe is adjusted according to the base station load (DwPTS, Downlink) The number of Pilot Time Slots is entered into the special subframe power saving mode; in the special subframe power saving mode, the adjusted special subframe is used for signal transmission. As shown in Figure 1, the specific process can be as follows:

101、对基站负载进行监测。 101. Monitor base station load.

其中，监测的方式可以有多种，比如，具体可以测量基站运行时的负载功率，或者，计算基站的业务量，等等，在此不再赘述。其中，基站的负载包括但不限于物理资源块（PRB, Physical Resource Blocks ) 利用率和 /或基站用户数等。 The monitoring method may be various, for example, the load power of the base station during operation may be measured, or the traffic of the base station may be calculated, and so on, and details are not described herein. The load of the base station includes, but is not limited to, physical resource block (PRB) utilization and/or number of base station users.

可选的，在对基站负载进行监测之前，如果基站满足普通子帧节能模式的条件时，则还可以进入普通子帧节能模式，比如，将普通下行子帧配置为 MBSFN子帧，使得该普通下行子帧只在 Symbol #0发送参考信号，而其他没有业务的 Symbol的功放则可以关闭，等等。 Optionally, before the base station load is monitored, if the base station meets the condition of the normal subframe energy-saving mode, the normal subframe energy-saving mode may also be entered, for example, the normal downlink subframe is configured as an MBSFN subframe, so that the common The downlink subframe only transmits the reference signal in Symbol #0, while other power amplifiers without the service can be turned off, and so on.

则此时，步骤 "对基站负载进行监测（即步骤 101 )" 具体可以为：在普通子帧节能模式下，对基站负载进行监测。 Then, in step, the step of "monitoring the base station load (ie, step 101)" may be: monitoring the base station load in the normal subframe energy saving mode.

此外，还可以设置一个节能时段，在进入该节能时段时，再对基站负载进行监测，以确定是否需要进入特殊子帧节能模式（即步骤 103 ), 即，步骤 "对基站负载进行监测（即步骤 101 )" 具体可以为：在进入节能时段时，对基站负载进行监测。 In addition, an energy saving period may also be set, and when entering the energy saving period, the base station load is monitored to determine whether it is required to enter the special subframe energy saving mode (ie, step 103), that is, the step “monitorizes the base station load (ie, Step 101)" may specifically: monitor the base station load when entering the energy saving period.

102、确定基站负载是否小于预置的负载阈值，为了描述方便，在本发明实施例中称为第一负载阈值，若小于该第一负载阈值，则执行步骤 103, 否贝' J , 若不小于（即大于等于）过该第一负载阈值，则返回执行步骤 101 , 即继续对基站负载进行监测。 102. Determine whether the base station load is less than a preset load threshold. For convenience of description, it is referred to as a first load threshold in the embodiment of the present invention. If the first load threshold is less than the first load threshold, step 103 is performed. If the first load threshold is less than (ie, greater than or equal to), the process returns to step 101 to continue monitoring the base station load.

其中，第一负载阈值的取值可以根据实际应用的需求进行设置。 The value of the first load threshold may be set according to requirements of an actual application.

103、若基站负载小于预置的第一负载阈值，则根据基站负载下调特殊子帧的下行前导时隙的数目，以进入特殊子帧节能模式，并执行步骤 105。 103. If the base station load is less than the preset first load threshold, the number of downlink preamble slots of the special subframe is adjusted according to the load of the base station to enter the special subframe energy saving mode, and step 105 is performed.

其中，特殊子帧节能模式，指的是可以根据基站负载下调特殊子帧的下行前导时隙的数目的模式，区别于普通子帧节能模式，在普通子帧节能模式中，只对普通下行子帧进行处理，比如将普通下行子帧配置为 MBSFN子帧，等等，而在特殊子帧节能模式下，可以对下行子帧中的特殊子帧进行处理，比如根据基站负载下调特殊子帧的下行前导时隙的数目，等等。 The special subframe energy-saving mode refers to a mode in which the number of downlink preamble slots of the special subframe can be adjusted according to the load of the base station, which is different from the normal subframe energy-saving mode. In the normal subframe energy-saving mode, only the normal downlink sub-s The frame is processed, for example, the normal downlink subframe is configured as an MBSFN subframe, and the like, and in the special subframe energy-saving mode, the special subframe in the downlink subframe may be processed, for example, the special subframe is adjusted according to the base station load. The number of downlink preamble slots, and so on.

其中，在调整特殊子帧的下行前导时隙的数目时，一般可以将下行前导时隙的数目控制在 1个到 10个的范围之内（最好为 3到 10个），即，步骤 "根据基站负载下调特殊子帧的下行前导时隙的数目" 可以包括： Wherein, when adjusting the number of downlink preamble slots of a special subframe, the downlink preamble time can generally be used. The number of slots is controlled within a range of 1 to 10 (preferably 3 to 10), that is, the step of "downgrading the number of downlink preamble slots of a special subframe according to base station load" may include:

根据基站负载下调特殊子帧的下行前导时隙的数目，使得该下行前导时隙的数目大于等于 1小于等于 10。 The number of downlink preamble slots of the special subframe is adjusted according to the load of the base station, so that the number of the downlink preamble slots is greater than or equal to 1 and less than or equal to 10.

104、在特殊子帧节能模式下，利用调整后的特殊子帧进行信号传输。例如，若在步骤 103中，下行前导时隙的数目从 10个下调为 5个，则在该特殊子帧节能模式下，可以以 5个下行前导时隙的状态来进行信号传输，直到退出本次的特殊子帧节能模式；而若后续又进入特殊子帧节能模式，且下行前导时隙的数目被调整为 3个，则基站又会以 3个下行前导时隙的状态来进行信号传输，直至退出特殊子帧节能模式，以此类推，在此不再列举。 104. In the special subframe energy saving mode, the adjusted special subframe is used for signal transmission. For example, if the number of downlink preamble slots is reduced from 10 to 5 in step 103, in the special subframe energy saving mode, signal transmission may be performed in the state of 5 downlink preamble slots until the exit is performed. The special sub-frame energy-saving mode; if the subsequent sub-frame energy-saving mode is entered, and the number of downlink preamble slots is adjusted to three, the base station performs signal transmission in the state of three downlink preamble slots. Until the special sub-frame energy-saving mode is exited, and so on, it will not be enumerated here.

其中，基站退出特殊子帧节能模式的方法可以有多种，比如，可以设置一个负载阈值，为了描述方便，在本发明实施例中称为第二负载阈值，若监测到基站负载大于该第二负载阈值，则退出该特殊子帧节能模式；或者，还可以设置一个节能时段，在进入该节能时段时，对基站负载进行监测（即执行步骤 101 ), 如果后续进入特殊子帧节能模式，则在超出该节能时段时，退出该特殊子帧节能模式，等等，即，在步骤 "利用调整后的特殊子帧进行信号传输"之后，该方法还可以包括： The method for the base station to exit the special subframe energy-saving mode may be multiple. For example, a load threshold may be set. For convenience of description, it is referred to as a second load threshold in the embodiment of the present invention, and if the base station load is greater than the second The load threshold is used to exit the special subframe energy-saving mode; or, an energy-saving period may be set, and when the energy-saving period is entered, the base station load is monitored (ie, step 101 is performed), and if the special subframe energy-saving mode is subsequently entered, When the energy saving period is exceeded, the special subframe power saving mode is exited, and the like, that is, after the step of "signal transmission by using the adjusted special subframe", the method may further include:

若监测到基站负载大于预置的第二负载阈值，则退出特殊子帧节能模式，此时，基站可以返回正常工作的模式或普通子帧节能模式等；或者， If the monitored base station load is greater than the preset second load threshold, the special subframe energy saving mode is exited. At this time, the base station may return to the normal working mode or the normal subframe energy saving mode; or

确定当前时间不属于预置的节能时段内时，退出特殊子帧节能模式，此时，基站可以返回正常工作的模式或普通子帧节能模式等；或者， When the current time is not within the preset energy saving period, the special subframe energy saving mode is exited. At this time, the base station may return to the normal working mode or the normal subframe energy saving mode; or

还可以在监测到基站负载大于预置的第二负载阈值时，退出特殊子帧节能模式，否则，如果没有大于预置的第二负载阈值，则在确定当前时间不属于预置的节能时段内时，退出特殊子帧节能模式，此时，基站可以返回正常工作的模式或普通子帧节能模式等。 The special subframe energy saving mode may also be exited when the monitoring of the base station load is greater than the preset second load threshold. Otherwise, if the second load threshold is not greater than the preset, the current time is determined not to belong to the preset energy saving period. When the special subframe power saving mode is exited, the base station can return to the normal working mode or the normal subframe energy saving mode.

其中，第二负载阈值的取值可以根据实际应用的需求进行设置，而节能时段也可以根据实际应用的需求进行设置。 The value of the second load threshold can be set according to the requirements of the actual application, and the energy saving period can also be set according to the requirements of the actual application.

由上可知，本实施例采用对基站负载进行监测，在监测到基站负载小于预置的第一负载阈值时，根据基站负载下调特殊子帧的下行前导时隙的数目，以进入特殊子帧节能模式，并在特殊子帧节能模式下，利用调整后的特殊子帧进行信号传输；由于该方案在基站负载较小的时候，可以减少特殊子帧的下行前导时隙的数目，因此，可以减少特殊子帧所需要消耗的功率，进而使得基站整体的能耗减少，该方案可以适用于 TDD LTE***中的特殊子帧，可以实现 TDD LTE***中的基站节能。根据实施例一所描述的方法，以下将在实施例二和三种作进一步详细说明。实施例二、 It can be seen that, in this embodiment, the base station load is monitored, and when the base station load is less than the preset first load threshold, the number of downlink preamble slots of the special subframe is adjusted according to the load of the base station, Enter the special subframe energy-saving mode, and use the adjusted special subframe for signal transmission in the special subframe energy-saving mode; because the scheme reduces the number of downlink preamble slots of the special subframe when the base station load is small Therefore, the power consumption of the special subframe can be reduced, and the overall energy consumption of the base station is reduced. The solution can be applied to a special subframe in the TDD LTE system, and the base station can save energy in the TDD LTE system. According to the method described in the first embodiment, the second and third embodiments will be further described in detail below. Embodiment 2

在本实施例中，将以该 TDD LTE***中的信号传输装置具体集成在基站中，且监测到基站负载大于预置的第二负载阈值时，退出特殊子帧节能模式为例进行说明。 In this embodiment, the signal transmission device in the TDD LTE system is specifically integrated in the base station, and when the base station load is greater than the preset second load threshold, the special subframe energy saving mode is exited as an example for description.

如图 2a所示，一种 TDD LTE***中的信号传输方法，具体流程可以如下： As shown in Figure 2a, a signal transmission method in a TDD LTE system can be as follows:

201、基站处于正常工作模式，并在确定满足普通子帧节能模式的条件时，进入普通子帧节能模式，比如，可以将普通下行子帧配置为 MBSFN子帧，使得该普通下行子帧只在 Symbol #0发送参考信号，而其他没有业务的 Symbol的功放则可以关闭，等等。 201. The base station is in a normal working mode, and enters a normal subframe energy-saving mode when determining that the normal subframe energy-saving mode is met. For example, the normal downlink subframe may be configured as an MBSFN subframe, so that the normal downlink subframe is only in the Symbol #0 sends a reference signal, while other Power amplifiers without a service can be turned off, and so on.

202、基站对基站负载进行监测； 202. The base station monitors a base station load.

其中，监测的方式可以有多种，比如，具体可以测量基站运行时的负载功率，或者，计算基站的业务量，业务量多（即业务忙）时基站负载大，反之，业务量少（即业务闲时）时基站负载就小，等等，在此不再赘述。 The monitoring method may be various. For example, the load power of the base station may be measured, or the traffic of the base station may be calculated. When the traffic is large (that is, the service is busy), the base station load is large, and vice versa, the traffic is small (ie, When the service is idle, the base station load is small, and so on, and will not be described here.

203、基站确定基站负载是否小于第一负载阈值 d,则执行步骤 204,否贝' J , 若不小于（即大于等于）过该第一负载阈值 d, 则返回执行步骤 202, 即继续对基站负载进行监测。 203. The base station determines whether the base station load is less than the first load threshold d, and then performs step 204, if no, and if not less than (ie, greater than or equal to) the first load threshold d, return to step 202, that is, continue to the base station. The load is monitored.

其中，该第一负载阈值(^可以根据实际应用的需求进行设置。 The first load threshold (^ can be set according to the requirements of the actual application.

204、若基站负载小于预置的第一负载阈值 d, 则基站根据基站负载下调特殊子帧的下行前导时隙的数目，以进入特殊子帧节能模式，并执行步骤 206。 204. If the base station load is less than the preset first load threshold d, the base station adjusts the number of downlink preamble slots of the special subframe according to the base station load to enter the special subframe energy saving mode, and performs step 206.

其中，在调整特殊子帧的下行前导时隙的数目时，一般可以将下行前导时隙的数目控制在 1个到 10个的范围之内。此外，第一负载阈值的取值可以根据实际应用的需求进行设置。 Wherein, when adjusting the number of downlink preamble slots of a special subframe, the number of downlink preamble slots can generally be controlled within a range of 1 to 10. In addition, the value of the first load threshold can be rooted Set according to the needs of the actual application.

例如，参见图 2b, 该图为特殊子帧的结构示意图，其中，一般 2~11时隙均可以作为下行前导时隙，在本发明实施例中，该部分的时隙数目可以根据基站负载比如业务量进行调整，在业务忙时分配较多数目的下行前导时隙，比如具体可以参见图 2b中左图的粗线框部分（即 2~8时隙），而在业务闲时则可以分配较多数目的下行前导时隙，比如具体可以参见图 2b中右图的粗线框部分（即 2 时隙），等等。 For example, referring to FIG. 2b, the figure is a schematic structural diagram of a special subframe, where a general 2~11 time slot can be used as a downlink preamble time slot. In this embodiment of the present invention, the number of time slots of the part may be based on a base station load, for example. The traffic is adjusted, and a larger number of downlink preamble slots are allocated when the service is busy. For example, the thick line frame part (ie, 2-8 time slots) in the left figure in FIG. 2b can be allocated, and the service can be allocated when the service is idle. A plurality of downlink preamble slots, such as the thick line frame portion (ie, 2 slots) in the right diagram of FIG. 2b, and so on.

205、在特殊子帧节能模式下，基站利用调整后的特殊子帧进行信号传输。例如，若在步骤 204中，下行前导时隙的数目从 10个下调为 5个，则在该特殊子帧节能模式下，可以以 5个下行前导时隙的状态来进行信号传输，直到退出本次的特殊子帧节能模式；而若后续又进入特殊子帧节能模式，且下行前导时隙的数目被调整为 3个，则基站又会以 3个下行前导时隙的状态来进行信号传输，直至退出特殊子帧节能模式，以此类推，在此不再列举。 205. In the special subframe energy saving mode, the base station performs signal transmission by using the adjusted special subframe. For example, if the number of downlink preamble slots is reduced from 10 to 5 in step 204, in the special subframe energy saving mode, signal transmission may be performed in the state of 5 downlink preamble slots until the exit is performed. The special sub-frame energy-saving mode; if the subsequent sub-frame energy-saving mode is entered, and the number of downlink preamble slots is adjusted to three, the base station performs signal transmission in the state of three downlink preamble slots. Until the special sub-frame energy-saving mode is exited, and so on, it will not be enumerated here.

206、确定基站负载是否大于预置的第二负载阈值 C₂, 若是，则退出特殊子帧节能模式，基站进入普通子帧节能模式，否则，则仍停留在特殊子帧节能模式中。 206, the base station determines whether the load is greater than a second preset load threshold C _2, and if yes, exits the special sub-frame energy saving mode, the base station enters normal sub-frame energy saving mode, otherwise, the special subframe remains in power-saving mode.

其中，第二负载阈值 C₂的取值可以根据实际应用的需求进行设置。 The value of the second load threshold C ₂ can be set according to the requirements of the actual application.

由上可知，本实施例采用对基站负载进行监测，在监测到基站负载小于预置的第一负载阈值时，根据基站负载下调特殊子帧的下行前导时隙的数目，以进入特殊子帧节能模式，然后在该特殊子帧节能模式下，利用调整后的特殊子帧进行信号传输，并在基站负载大于预置的第二负载阈值 C₂时，退出特殊子帧节能模式；由于该方案在基站负载较小的时候，可以减少特殊子帧的下行前导时隙的数目，因此，可以减少特殊子帧所需要消耗的功率，进而使得基站整体的能耗减少，该方案可以适用于 TDD LTE***中的特殊子帧，可以实现 TDD LTE***中的基站节能。实施例三、 It can be seen that, in this embodiment, the load of the base station is monitored, and when the load of the base station is less than the preset first load threshold, the number of downlink preamble slots of the special subframe is adjusted according to the load of the base station to save energy into the special subframe. Mode, and then in the special subframe energy-saving mode, using the adjusted special subframe for signal transmission, and when the base station load is greater than the preset second load threshold C ₂ , exiting the special subframe energy-saving mode; When the base station load is small, the number of downlink preamble slots of the special subframe can be reduced. Therefore, the power consumed by the special subframe can be reduced, thereby reducing the overall energy consumption of the base station. The scheme can be applied to the TDD LTE system. The special subframe in the middle can save the base station in the TDD LTE system. Embodiment 3

与实施例二相同的是，在本实施例中，同样以该 TDD LTE***中的信号传输装置具体集成在基站中为例进行说明，与实施例二不同的是，在本实施例中，还可以设置一个节能时段，并在超出该节能时段时，退出该特殊子帧节能模式，以下将进行详细说明。 The second embodiment is the same as the second embodiment. In the embodiment, the signal transmission device in the TDD LTE system is specifically integrated into the base station. The difference from the second embodiment is that, in this embodiment, It is also possible to set an energy saving period and exit the special subframe energy saving mode when the energy saving period is exceeded, which will be described in detail below.

如图 3所示，一种 TDD LTE***中的信号传输方法，具体流程可以如下： As shown in Figure 3, a signal transmission method in a TDD LTE system can be as follows:

301、基站处于正常工作模式，并在进入节能时段时，对基站负载进行监测。 301. The base station is in a normal working mode, and monitors the base station load when entering the energy saving period.

其中，监测的方式可以有多种，比如，具体可以测量基站运行时的负载功率，或者，计算基站的业务量，等等，在此不再赘述。 The monitoring method may be various, for example, the load power of the base station during operation may be measured, or the traffic of the base station may be calculated, and so on, and details are not described herein.

302、基站确定基站负载是否小于预置的第一负载阈值(^ ,则执行步骤 304 , 否则，若不小于（即大于等于）过该第一负载阈值 d, 则返回执行步骤 302, 即继续对基站负载进行监测。 302. The base station determines whether the base station load is less than the preset first load threshold (^, and then performs step 304. Otherwise, if the first load threshold d is not less than (ie, greater than or equal to), the process returns to step 302, that is, continues to The base station load is monitored.

303、若基站负载小于预置的第一负载阈值 d, 则基站根据基站负载下调特殊子帧的下行前导时隙的数目，以进入特殊子帧节能模式，并执行步骤 305。 303. If the base station load is less than the preset first load threshold d, the base station adjusts the number of downlink preamble slots of the special subframe according to the base station load to enter the special subframe energy saving mode, and performs step 305.

其中，在调整特殊子帧的下行前导时隙的数目时，一般可以将下行前导时隙的数目控制在 1个到 10个的范围之内。此外，第一负载阈值的取值可以根据实际应用的需求进行设置。 Wherein, when adjusting the number of downlink preamble slots of a special subframe, the number of downlink preamble slots can generally be controlled within a range of 1 to 10. In addition, the value of the first load threshold can be set according to the needs of the actual application.

304、在特殊子帧节能模式下，基站利用调整后的特殊子帧进行信号传输。例如，若在步骤 303中，下行前导时隙的数目从 10个下调为 5个，则在该特殊子帧节能模式下，可以以 5个下行前导时隙的状态来进行信号传输，直到退出本次的特殊子帧节能模式；而若后续又进入特殊子帧节能模式，且下行前导时隙的数目被调整为 3个，则基站又会以 3个下行前导时隙的状态来进行信号传输，直至退出特殊子帧节能模式，以此类推，在此不再列举。 305、确定基站负载是否大于预置的第二负载阈值 C₂, 若是，则退出特殊子帧节能模式，基站进入正常工作模式，否则，则执行步骤 306。 304. In the special subframe energy saving mode, the base station performs signal transmission by using the adjusted special subframe. For example, if the number of downlink preamble slots is reduced from 10 to 5 in step 303, in the special subframe energy saving mode, signal transmission may be performed in the state of 5 downlink preamble slots until the exit is performed. The special sub-frame energy-saving mode; if the subsequent sub-frame energy-saving mode is entered, and the number of downlink preamble slots is adjusted to three, the base station performs signal transmission in the state of three downlink preamble slots. Until the special sub-frame energy-saving mode is exited, and so on, it will not be enumerated here. 305, the base station determines whether the load is greater than a second preset load threshold C _2, and if yes, exits the special sub-frame energy saving mode, the base station enters normal operation mode, otherwise, step 306 is executed.

306、基站确定当前时间是否属于预置的节能时段内，若是，停留在特殊子帧节能模式中，若否，则退出特殊子帧节能模式，返回基站正常工作模式。 306. The base station determines whether the current time belongs to the preset energy saving period, and if yes, stays in the special subframe energy saving mode, and if not, exits the special subframe energy saving mode, and returns to the normal working mode of the base station.

由上可知，本实施例采用对基站负载进行监测，在监测到基站负载小于预置的第一负载阈值时，根据基站负载下调特殊子帧的下行前导时隙的数目，以进入特殊子帧节能模式，然后在该特殊子帧节能模式下，利用调整后的特殊子帧进行信号传输，并在基站负载大于预置的第二负载阈值 ( ₂或超出预置的节能时段内时，退出特殊子帧节能模式；由于该方案在基站负载较小的时候，可以减少特殊子帧的下行前导时隙的数目，因此，可以减少特殊子帧所需要消耗的功率，进而使得基站整体的能耗减少，该方案可以适用于 TDD LTE***中的特殊子帧，可以实现 TDD LTE***中的基站节能。实施例四、 It can be seen that, in this embodiment, the load of the base station is monitored, and when the load of the base station is less than the preset first load threshold, the number of downlink preamble slots of the special subframe is adjusted according to the load of the base station to save energy into the special subframe. Mode, and then in the special subframe energy-saving mode, using the adjusted special subframe for signal transmission, and when the base station load is greater than the preset second load threshold ( ₂ or beyond the preset energy-saving period, exit the special sub- The frame energy-saving mode; the scheme can reduce the number of downlink preamble slots of the special subframe when the base station load is small, so that the power consumed by the special subframe can be reduced, thereby reducing the overall energy consumption of the base station. The solution can be applied to a special subframe in the TDD LTE system, and can implement energy saving of the base station in the TDD LTE system.

为了更好地实现上述方法，本发明实施例还提供一种信号传输装置，可以用于 TDD LTE***中，如图 4所示，该信号传输装置包括监测单元 401、调整单元 402和传输单元 403; In order to better implement the foregoing method, the embodiment of the present invention further provides a signal transmission apparatus, which can be used in a TDD LTE system. As shown in FIG. 4, the signal transmission apparatus includes a monitoring unit 401, an adjustment unit 402, and a transmission unit 403. ;

监测单元 401 , 用于对基站负载进行监测； a monitoring unit 401, configured to monitor a base station load;

其中，基站的负载包括但不限于物理资源块（PRB , Physical Resource Blocks )利用率和 /或基站用户数等。 The load of the base station includes, but is not limited to, physical resource block (PRB) utilization and/or number of base station users.

调整单元 402, 用于在监测到基站负载小于预置的第一负载阈值时，根据基站负载下调特殊子帧的下行前导时隙的数目，以进入特殊子帧节能模式。 The adjusting unit 402 is configured to: when monitoring that the base station load is less than the preset first load threshold, reduce the number of downlink preamble slots of the special subframe according to the base station load, to enter the special subframe energy saving mode.

其中，特殊子帧节能模式，指的是可以根据基站负载下调特殊子帧的下行前导时隙的数目的模式，区别于普通子帧节能模式，在普通子帧节能模式中，只对普通下行子帧进行处理，比如将普通下行子帧配置为 MBSFN子帧，等等，而在特殊子帧节能模式下，可以对下行子帧中的特殊子帧进行处理，比如根据基站负载下调特殊子帧的下行前导时隙的数目，等等。 The special subframe energy-saving mode refers to a mode in which the number of downlink preamble slots of the special subframe can be adjusted according to the load of the base station, and is different from the normal subframe energy-saving mode. In the normal subframe energy-saving mode, Only the normal downlink subframes are processed, for example, the normal downlink subframes are configured as MBSFN subframes, and the like, and in the special subframe energy-saving mode, the special subframes in the downlink subframes may be processed, for example, according to the base station load. The number of downlink preamble slots of the special subframe is lowered, and so on.

传输单元 403, 用于在特殊子帧节能模式下，利用调整后的特殊子帧进行信号传输。 The transmission unit 403 is configured to perform signal transmission by using the adjusted special subframe in the special subframe energy-saving mode.

其中，在调整特殊子帧的下行前导时隙的数目时，一般可以将下行前导时隙的数目控制在 1个到 10个的范围之内（最好为 3到 10个），即： Wherein, when adjusting the number of downlink preamble slots of the special subframe, the number of downlink preamble slots can generally be controlled within a range of 1 to 10 (preferably 3 to 10), namely:

调整单元 402, 具体可以用于根据基站负载下调特殊子帧的下行前导时隙的数目，使得该下行前导时隙的数目大于等于 1小于等于 10。 The adjusting unit 402 is specifically configured to: reduce the number of downlink preamble slots of the special subframe according to the load of the base station, so that the number of the downlink preamble slots is greater than or equal to 1 and less than or equal to 10.

可选的，在对基站负载进行监测之前，如果基站满足普通子帧节能模式的条件时，则还可以进入普通子帧节能模式，比如，将普通下行子帧配置为 Optionally, before the base station load is monitored, if the base station meets the condition of the normal subframe energy-saving mode, the normal subframe energy-saving mode may also be entered. For example, the normal downlink subframe is configured as

MBSFN子帧，使得该普通下行子帧只在 Symbol #0发送参考信号，而其他没有业务的 Symbol的功放则可以关闭，等等。即，该 TDD LTE***中的信号传输装置还可以包括处理单元； The MBSFN subframe is such that the normal downlink subframe transmits the reference signal only in Symbol #0, while other Symbols without the service can be turned off, and so on. That is, the signal transmission device in the TDD LTE system may further include a processing unit;

处理单元，用于在满足普通子帧节能模式的条件时，进入普通子帧节能模式； a processing unit, configured to enter a normal subframe energy saving mode when a condition of the normal subframe energy saving mode is met;

则此时，监测单元 401 , 具体可以用于在普通子帧节能模式下，对基站负载进行监测。 At this time, the monitoring unit 401 can be specifically configured to monitor the base station load in the normal subframe energy saving mode.

其中，基站退出特殊子帧节能模式的方法可以有多种，比如，可以设置第二负载阈值，若监测到基站负载大于该第二负载阈值，则退出该特殊子帧节能模式，即： The method for the base station to exit the special subframe energy-saving mode may be multiple. For example, the second load threshold may be set. If the base station load is greater than the second load threshold, the special subframe energy-saving mode is exited, that is,

调整单元 402, 还可以用于在监测到基站负载大于预置的第二负载阈值时，退出特殊子帧节能模式。 The adjusting unit 402 is further configured to exit the special subframe energy saving mode when detecting that the base station load is greater than a preset second load threshold.

其中，第二负载阈值的取值可以根据实际应用的需求进行设置。 The value of the second load threshold may be set according to the requirements of the actual application.

或者，还可以设置一个节能时段，在进入该节能时段时，对基站负载进行监测，如果后续进入特殊子帧节能模式，则在超出该节能时段时，退出该特殊子帧节能模式，即： Alternatively, an energy saving period may be set, and when the energy saving period is entered, the base station load is monitored. If the special subframe energy saving mode is subsequently entered, the special subframe energy saving mode is exited when the energy saving period is exceeded, that is,

监测单元 401 , 具体可以用于在节能时段内，对基站负载进行监测；调整单元 402, 还可以用于确定当前时间不属于预置的节能时段内时，退出特殊子帧节能模式。 The monitoring unit 401 can be specifically configured to monitor the load of the base station during the energy saving period; the adjusting unit 402 can also be used to determine that the current time does not belong to the preset energy saving period, Special subframe energy saving mode.

其中，该节能时段可以根据实际应用的需求进行设置。 The energy saving period can be set according to the requirements of the actual application.

该信号传输装置具体可以集成在基站等设备中。 The signal transmission device may be specifically integrated in a device such as a base station.

具体实现时，以上各个单元可以作为独立的实体来实现，也可以进行任意组合，作为同一或若干个实体来实现，以上各个单元的具体实施可参见前面的方法实施例，在此不再赘述。 For the specific implementation, the foregoing units may be implemented as a separate entity, or may be implemented in any combination, and may be implemented as the same or a plurality of entities. For the specific implementation of the foregoing, refer to the foregoing method embodiments, and details are not described herein.

由上可知，本实施例的信号传输装置的监测单元 401可以对基站负载进行监测，并在监测到基站负载小于预置的第一负载阈值时，由调整单元 402根据基站负载下调特殊子帧的下行前导时隙的数目，以进入特殊子帧节能模式，并由传输单元 403在特殊子帧节能模式下，利用调整后的特殊子帧进行信号传输；由于该方案在基站负载较小的时候，可以减少特殊子帧的下行前导时隙的数目，因此，可以减少特殊子帧所需要消耗的功率，进而使得基站整体的能耗减少，该方案可以适用于 TDD LTE***中的特殊子帧，可以实现 TDD LTE***中的基站节能。实施例五、 It can be seen that the monitoring unit 401 of the signal transmission apparatus of this embodiment can monitor the base station load, and when the base station load is less than the preset first load threshold, the adjustment unit 402 lowers the special subframe according to the base station load. The number of downlink preamble slots is entered to enter the special subframe power saving mode, and the transmission unit 403 performs signal transmission by using the adjusted special subframe in the special subframe energy saving mode; The number of downlink preamble slots of the special subframe can be reduced. Therefore, the power consumed by the special subframe can be reduced, and the overall energy consumption of the base station is reduced. The scheme can be applied to a special subframe in the TDD LTE system. Realize energy saving of base stations in TDD LTE systems. Embodiment 5

相应的，本发明实施例还提供一种通信***，包括本发明实施提供的任一种信号传输装置，该信号传输装置可以用于 TDD LTE***中，其中，该信号传输装置具体可以参见实施例四，例如，以该信号传输装置用于 TDD LTE***中为例，具体可以如下： Correspondingly, the embodiment of the present invention further provides a communication system, including any of the signal transmission devices provided by the implementation of the present invention, where the signal transmission device can be used in a TDD LTE system, where the signal transmission device can be specifically referred to the embodiment. For example, the signal transmission device is used in the TDD LTE system as an example, and the details may be as follows:

TDD LTE***中的信号传输装置，用于对基站负载进行监测；若监测到基站负载小于预置的第一负载阈值，则根据基站负载下调特殊子帧的下行前导时隙的数目，以进入特殊子帧节能模式；在特殊子帧节能模式下，利用调整后的特殊子帧进行信号传输。 The signal transmission device in the TDD LTE system is configured to monitor the load of the base station; if the load of the base station is less than the preset first load threshold, the number of downlink preamble slots of the special subframe is adjusted according to the load of the base station to enter the special Sub-frame power-saving mode; In the special sub-frame energy-saving mode, the adjusted special sub-frame is used for signal transmission.

其中，第一负载阈值可以 ^^据实际应用的需求进行设置。 The first load threshold can be set according to the requirements of the actual application.

其中，在调整特殊子帧的下行前导时隙的数目时，一般可以将下行前导时隙的数目控制在 1个到 10个的范围之内，最好为 3到 10个。 Wherein, when adjusting the number of downlink preamble slots of the special subframe, the number of downlink preamble slots can generally be controlled within a range of 1 to 10, preferably 3 to 10.

例如，若下行前导时隙的数目从 10个下调为 5个，则在该特殊子帧节能模式下，可以以 5个下行前导时隙的状态来进行信号传输，直到退出本次的特殊子帧节能模式；而若后续又进入特殊子帧节能模式，且下行前导时隙的数目被调整为 3个，则基站又会以 3个下行前导时隙的状态来进行信号传输，直至退出特殊子帧节能模式，以此类推，在此不再列举。 For example, if the number of downlink preamble slots is reduced from 10 to 5, in the special subframe power saving mode, signal transmission may be performed in the state of 5 downlink preamble slots until the end of this time. If the number of downlink preamble slots is adjusted to three, the base station will perform signal transmission in the state of three downlink preamble slots until exiting. Special subframe energy saving mode, and so on, will not be enumerated here.

可选的，在对基站负载进行监测之前，如果基站满足普通子帧节能模式的条件时，则还可以进入普通子帧节能模式，比如，将普通下行子帧配置为 MBSFN子帧，使得该普通下行子帧只在 Symbol #0发送参考信号，而其他没有业务的 Symbol的功放则可以关闭，等等。即： Optionally, before the base station load is monitored, if the base station meets the condition of the normal subframe energy-saving mode, the normal subframe energy-saving mode may also be entered, for example, the normal downlink subframe is configured as an MBSFN subframe, so that the common The downlink subframe only transmits the reference signal in Symbol #0, while other power amplifiers without the service can be turned off, and so on. which is:

TDD LTE***中的信号传输装置，还可以用于在满足普通子帧节能模式的条件时，进入普通子帧节能模式，并在普通子帧节能模式下，对基站负载进行监测。 The signal transmission device in the TDD LTE system can also be used to enter the normal subframe energy-saving mode when the condition of the normal subframe energy-saving mode is satisfied, and the base station load is monitored in the normal subframe energy-saving mode.

可选的，基站退出特殊子帧节能模式的方法可以有多种，比如，可以设置一个负载阈值，为了描述方便，在本发明实施例中称为第二负载阈值，若监测到基站负载大于该第二负载阈值，则退出该特殊子帧节能模式；或者，还可以设置一个节能时段，在进入该节能时段时，对基站负载进行监测，如果后续进入特殊子帧节能模式，则在超出该节能时段时，退出该特殊子帧节能模式，等等，即： Optionally, the method for the base station to exit the special subframe energy-saving mode may be multiple. For example, a load threshold may be set. For convenience of description, it is referred to as a second load threshold in the embodiment of the present invention. The second load threshold is used to exit the special subframe energy saving mode; or, an energy saving period may be set, and when the energy saving period is entered, the base station load is monitored, and if the special subframe energy saving mode is subsequently entered, the energy saving is exceeded. During the time period, exit the special sub-frame energy-saving mode, and so on, ie:

DD LTE***中的信号传输装置，还可以用于若监测到基站负载大于预置的第二负载阈值，则退出特殊子帧节能模式，此时，基站可以返回正常工作的模式或普通子帧节能模式等；或者， The signal transmission device in the DD LTE system can also be used to exit the special subframe energy-saving mode if the monitored base station load is greater than the preset second load threshold. At this time, the base station can return to the normal working mode or the normal subframe energy-saving mode. Mode, etc.; or,

DD LTE***中的信号传输装置，还可以用于确定当前时间不属于预置的节能时段内时，退出特殊子帧节能模式，此时，基站可以返回正常工作的模式或普通子帧节能模式等；或者， The signal transmission device in the DD LTE system can also be used to determine that the current time is not within the preset energy saving period, and exit the special subframe energy saving mode. At this time, the base station can return to the normal working mode or the normal subframe energy saving mode. Or,

DD LTE***中的信号传输装置，还可以用于在监测到基站负载大于预置的第二负载阈值时，退出特殊子帧节能模式，否则，如果没有大于预置的第二负载阈值，则在确定当前时间不属于预置的节能时段内时，退出特殊子帧节能模式，此时，基站可以返回正常工作的模式或普通子帧节能模式等。 The signal transmission device in the DD LTE system can also be used to exit the special subframe energy-saving mode when the monitored base station load is greater than the preset second load threshold. Otherwise, if there is no second load threshold greater than the preset, then When it is determined that the current time does not belong to the preset energy saving period, the special subframe energy saving mode is exited. At this time, the base station may return to the normal working mode or the normal subframe energy saving mode.

可选的，该通信***还可以包括其他的设备，比如还可以包括用户终端，用于接收该 TDD LTE***中的信号传输装置（比如基站）所发送的信号。和 / 或，还可以包括网关、服务器等设备。 Optionally, the communication system may further include other devices, such as a user terminal. A signal for receiving a signal transmission device (such as a base station) in the TDD LTE system. And / or, can also include devices such as gateways, servers, and so on.

以上各个设备的具体实施可参见前面的实施例，在此不再赘述。 For the specific implementation of the foregoing various devices, refer to the foregoing embodiments, and details are not described herein again.

由上可知，本实施例的通信***采用对基站负载进行监测，在监测到基站负载小于预置的第一负载阈值时，根据基站负载下调特殊子帧的下行前导时隙的数目，以进入特殊子帧节能模式，并在特殊子帧节能模式下，利用调整后的特殊子帧进行信号传输；由于该方案在基站负载较小的时候，可以减少特殊子帧的下行前导时隙的数目，因此，可以减少特殊子帧所需要消耗的功率，进而使得基站整体的能耗减少，该方案可以适用于 TDD LTE***中的特殊子帧，可以实现 TDD LTE***中的基站节能。实施例六、 It can be seen that the communication system in this embodiment monitors the load of the base station, and when the load of the base station is less than the preset first load threshold, the number of downlink preamble slots of the special subframe is adjusted according to the load of the base station to enter the special Sub-frame energy-saving mode, and in the special subframe energy-saving mode, the adjusted special subframe is used for signal transmission; since the scheme reduces the number of downlink preamble slots of the special subframe when the base station load is small, The power consumption of the special subframe can be reduced, and the overall energy consumption of the base station is reduced. The solution can be applied to a special subframe in the TDD LTE system, and the base station can be saved in the TDD LTE system. Embodiment 6

相应的，本发明实施例还提供一种基站，如图 5所示，该基站可以包括用于存储数据的存储器 501、用于收发数据的收发设备 502和处理器 503, 其中：处理器 503 , 用于对基站负载进行监测，在监测到基站负载小于预置的第一负载阈值时，根据基站负载下调特殊子帧的下行前导时隙的数目，以进入特殊子帧节能模式，并在特殊子帧节能模式下，利用调整后的特殊子帧进行信号传输。 Correspondingly, the embodiment of the present invention further provides a base station. As shown in FIG. 5, the base station may include a memory 501 for storing data, a transceiver device 502 for transmitting and receiving data, and a processor 503, where: the processor 503, The base station load is monitored, and when the base station load is less than the preset first load threshold, the number of downlink preamble slots of the special subframe is adjusted according to the load of the base station, to enter the special subframe energy-saving mode, and in the special sub- In the frame power saving mode, the adjusted special subframe is used for signal transmission.

例如，若下行前导时隙的数目从 10个下调为 5个，则在该特殊子帧节能模式下，可以以 5个下行前导时隙的状态来进行信号传输，直到退出本次的特殊子帧节能模式；而若后续又进入特殊子帧节能模式，且下行前导时隙的数目被调整为 3个，则基站又会以 3个下行前导时隙的状态来进行信号传输，直至退出特殊子帧节能模式，以此类推，在此不再列举。 For example, if the number of downlink preamble slots is reduced from 10 to 5, in the special subframe energy saving mode, signal transmission may be performed in the state of 5 downlink preamble slots until the special subframe is exited. If the number of downlink preamble slots is adjusted to three, the base station performs signal transmission in the state of three downlink preamble slots until the special subframe is exited. Energy-saving mode, and so on, are not listed here.

可选的，在对基站负载进行监测之前，如果基站满足普通子帧节能模式的条件时，则还可以进入普通子帧节能模式，比如，将普通下行子帧配置为 MBSFN子帧，使得该普通下行子帧只在 Symbol #0发送参考信号，而其他没有业务的 Symbol的功放则可以关闭，等等。即：处理器 503 , 还可以用于在满足普通子帧节能模式的条件时，进入普通子帧节能模式，并在普通子帧节能模式下，对基站负载进行监测。 Optionally, before the base station load is monitored, if the base station meets the condition of the normal subframe energy-saving mode, the normal sub-frame energy-saving mode may also be entered, for example, the normal downlink subframe is configured as an MBSFN subframe, so that the common The downlink subframe only transmits the reference signal in Symbol #0, while other power amplifiers without the service can be turned off, and so on. which is: The processor 503 is further configured to enter a normal subframe energy-saving mode when the condition of the normal subframe energy-saving mode is met, and monitor the base station load in the normal subframe energy-saving mode.

处理器 503 , 还可以用于在监测到基站负载大于预置的第二负载阈值时，退出特殊子帧节能模式。或者， The processor 503 is further configured to exit the special subframe power saving mode when detecting that the base station load is greater than a preset second load threshold. Or,

处理器 503 , 还可以用于在节能时段内，对基站负载进行监测，以及在确定当前时间不属于预置的节能时段内时，退出特殊子帧节能模式。或者，处理器 503 , 还可以用于在监测到基站负载大于预置的第二负载阈值时，退出特殊子帧节能模式，否则，如果没有大于预置的第二负载阈值，则在确定当前时间不属于预置的节能时段内时，退出特殊子帧节能模式。 The processor 503 is further configured to monitor the base station load during the energy saving period, and exit the special subframe energy saving mode when determining that the current time does not belong to the preset energy saving period. Alternatively, the processor 503 may be further configured to: when the monitored base station load is greater than the preset second load threshold, exit the special subframe energy saving mode; otherwise, if the second load threshold is not greater than the preset, determine the current time. When not in the preset energy saving period, the special subframe energy saving mode is exited.

由上可知，本实施例的基站中处理器 503可以对基站负载进行监测，在监测到基站负载小于预置的第一负载阈值时，根据基站负载下调特殊子帧的下行前导时隙的数目，以进入特殊子帧节能模式，并在特殊子帧节能模式下，利用调整后的特殊子帧进行信号传输；由于该方案在基站负载较小的时候，可以减少特殊子帧的下行前导时隙的数目，因此，可以减少特殊子帧所需要消耗的功率，进而使得基站整体的能耗减少，该方案可以适用于 TDD LTE***中的特殊子帧，可以实现 TDD LTE***中的基站节能。本领域普通技术人员可以理解上述实施例的各种方法中的全部或部分步骤是可以通过程序来指令相关的硬件来完成，该程序可以存储于一计算机可读存储介质中，存储介质可以包括：只读存储器（ROM, Read Only Memory ), 随机存取记忆体（RAM, Random Access Memory ) , 磁盘或光盘等。以上对本发明实施例所提供的一种 TDD LTE***中的信号传输方法、装进行了阐述，以上实施例的说明只是用于帮助理解本发明的方法及其核心思想；同时，对于本领域的技术人员，依据本发明的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本发明的限制。 It can be seen that the processor 503 in the base station of the embodiment can monitor the load of the base station, and when the load of the base station is less than the preset first load threshold, the number of downlink preamble slots of the special subframe is adjusted according to the load of the base station. In order to enter the special subframe energy-saving mode, and in the special subframe energy-saving mode, the adjusted special subframe is used for signal transmission; since the scheme reduces the downlink preamble slot of the special subframe when the base station load is small, Therefore, the power consumption of the special subframe can be reduced, thereby reducing the overall energy consumption of the base station. The solution can be applied to a special subframe in the TDD LTE system, and the base station can be saved in the TDD LTE system. A person skilled in the art may understand that all or part of the various steps of the foregoing embodiments may be completed by a program instructing related hardware. The program may be stored in a computer readable storage medium, and the storage medium may include: Read only memory (ROM, Read Only Memory), Random Access Memory (RAM), disk or optical disk. The foregoing describes the signal transmission method and apparatus in a TDD LTE system provided by the embodiments of the present invention. The description of the above embodiments is only used to help understand the method and core ideas of the present invention. Meanwhile, the technology in the field In the following, the description of the present invention is not limited to the scope of the present invention.

Claims

权利要求 Rights request

1、一种信号传输方法，其特征在于，包括： 1. A signal transmission method, characterized by including:

对基站负载进行监测； Monitor base station load;

若监测到基站负载小于预置的第一负载阈值，则根据基站负载下调特殊子帧的下行前导时隙的数目，以进入特殊子帧节能模式； If it is detected that the base station load is less than the preset first load threshold, the number of downlink preamble time slots of the special subframe is reduced according to the base station load to enter the special subframe energy-saving mode;

在特殊子帧节能模式下，利用调整后的特殊子帧进行信号传输。 In the special subframe energy-saving mode, the adjusted special subframe is used for signal transmission.

2、根据权利要求 1所述的方法，其特征在于，所述根据基站负载下调特殊子帧的下行前导时隙的数目，包括： 2. The method according to claim 1, wherein the reducing the number of downlink preamble time slots of the special subframe according to the base station load includes:

根据基站负载下调特殊子帧的下行前导时隙的数目，使得所述下行前导时隙的数目大于等于 1小于等于 10。 The number of downlink preamble time slots of the special subframe is reduced according to the load of the base station, so that the number of downlink preamble time slots is greater than or equal to 1 and less than or equal to 10.

3、根据权利要求 1所述的方法，其特征在于，所述对基站负载进行监测之前，还包括： 3. The method according to claim 1, characterized in that, before monitoring the base station load, it further includes:

在满足普通子帧节能模式的条件时，进入普通子帧节能模式； When the conditions for the ordinary subframe energy-saving mode are met, the ordinary subframe energy-saving mode is entered;

则所述对基站负载进行监测具体为：在普通子帧节能模式下，对基站负载进行监测。 The specific steps of monitoring the load of the base station are as follows: In the ordinary subframe energy-saving mode, the load of the base station is monitored.

4、根据权利要求 1至 3任一项所述的方法，其特征在于，所述利用调整后的特殊子帧进行信号传输之后，还包括： 4. The method according to any one of claims 1 to 3, characterized in that, after using the adjusted special subframe for signal transmission, it further includes:

若监测到基站负载大于预置的第二负载阈值，则退出特殊子帧节能模式。 If it is detected that the load of the base station is greater than the preset second load threshold, the special subframe energy saving mode will be exited.

5、根据权利要求 1或 2所述的方法，其特征在于， 5. The method according to claim 1 or 2, characterized in that,

所述对基站负载进行监测包括：在节能时段内，对基站负载进行监测；则所述利用调整后的特殊子帧进行信号传输之后，还包括：确定当前时间不属于预置的节能时段内时，退出特殊子帧节能模式。 The monitoring of the base station load includes: monitoring the base station load during the energy-saving period; and after using the adjusted special subframe for signal transmission, it also includes: determining that the current time does not fall within the preset energy-saving period. , exit the special subframe energy-saving mode.

6、一种信号传输装置，其特征在于，包括： 6. A signal transmission device, characterized in that it includes:

监测单元，用于对基站负载进行监测； Monitoring unit, used to monitor the load of the base station;

调整单元，用于在监测到基站负载小于预置的第一负载阈值时，根据基站负载下调特殊子帧的下行前导时隙的数目，以进入特殊子帧节能模式； An adjustment unit configured to, when the load of the base station is detected to be less than the preset first load threshold, reduce the number of downlink preamble slots of the special subframe according to the load of the base station to enter the special subframe energy-saving mode;

传输单元，用于在特殊子帧节能模式下，利用调整后的特殊子帧进行信号传输。 The transmission unit is used for signal transmission using the adjusted special subframe in the special subframe energy-saving mode.

7、根据权利要求 6所述的信号传输装置，其特征在于，所述调整单元，具体用于根据基站负载下调特殊子帧的下行前导时隙的数目，使得所述下行前导时隙的数目大于等于 1小于等于 10。 7. The signal transmission device according to claim 6, characterized in that, The adjustment unit is specifically configured to reduce the number of downlink preamble time slots of the special subframe according to the load of the base station, so that the number of downlink preamble time slots is greater than or equal to 1 and less than or equal to 10.

8、根据权利要求 6所述的信号传输装置，其特征在于，还包括处理单元；所述处理单元，用于在满足普通子帧节能模式的条件时，进入普通子帧节能模式； 8. The signal transmission device according to claim 6, further comprising a processing unit; the processing unit is configured to enter the ordinary subframe energy saving mode when the conditions of the ordinary subframe energy saving mode are met;

所述监测单元，具体用于在普通子帧节能模式下，对基站负载进行监测。 The monitoring unit is specifically used to monitor the load of the base station in the ordinary subframe energy saving mode.

9、根据权利要求 6至 8任一项所述的信号传输装置，其特征在于，所述调整单元，还用于在监测到基站负载大于预置的第二负载阈值时，退出特殊子帧节能模式。 9. The signal transmission device according to any one of claims 6 to 8, characterized in that the adjustment unit is also configured to exit the special subframe energy saving when it is detected that the load of the base station is greater than the preset second load threshold. model.

10、根据权利要求 6或 7所述的信号传输装置，其特征在于， 10. The signal transmission device according to claim 6 or 7, characterized in that,

所述监测单元，具体用于在节能时段内，对基站负载进行监测； The monitoring unit is specifically used to monitor the load of the base station during the energy saving period;

所述调整单元，还用于确定当前时间不属于预置的节能时段内时，退出特殊子帧节能模式。 The adjustment unit is also used to exit the special subframe energy saving mode when it is determined that the current time does not fall within the preset energy saving period.

11、一种通信***，其特征在于，包括权利要求 6至 10任一项所述的信号传输装置。 11. A communication system, characterized by including the signal transmission device according to any one of claims 6 to 10.

12、一种基站，其特征在于，包括用于存储数据的存储器、用于收发数据的收发设备和处理器，其中： 12. A base station, characterized in that it includes a memory for storing data, a transceiver device for transmitting and receiving data, and a processor, wherein:

处理器，用于对基站负载进行监测，在监测到基站负载小于预置的第一负载阈值时，根据基站负载下调特殊子帧的下行前导时隙的数目，以进入特殊子帧节能模式，并在特殊子帧节能模式下，利用调整后的特殊子帧进行信号传输。 The processor is used to monitor the base station load, and when the base station load is detected to be less than the preset first load threshold, reduce the number of downlink preamble time slots of the special subframe according to the base station load to enter the special subframe energy-saving mode, and In the special subframe energy-saving mode, the adjusted special subframe is used for signal transmission.

13、根据权利要求 12所述的基站，其特征在于， 13. The base station according to claim 12, characterized in that,

所述处理器，还用于在监测到基站负载大于预置的第二负载阈值时，退出特殊子帧节能模式。 The processor is also configured to exit the special subframe energy saving mode when it is detected that the load of the base station is greater than the preset second load threshold.

14、根据权利要求 12所述的基站，其特征在于， 14. The base station according to claim 12, characterized in that,

所述处理器，还用于在节能时段内，对基站负载进行监测，以及在确定当前时间不属于预置的节能时段内时，退出特殊子帧节能模式。 The processor is also used to monitor the load of the base station during the energy-saving period, and exit the special subframe energy-saving mode when it is determined that the current time does not fall within the preset energy-saving period.