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CN104753658B - Data transmission method and device a kind of while in co-channel full duplex system - Google Patents

Data transmission method and device a kind of while in co-channel full duplex system
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CN104753658B
CN104753658BCN201310741853.6ACN201310741853ACN104753658BCN 104753658 BCN104753658 BCN 104753658BCN 201310741853 ACN201310741853 ACN 201310741853ACN 104753658 BCN104753658 BCN 104753658B
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antennas
group
base station
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data
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韩双锋
潘振岗
易芝玲
崔春风
柳江平
黄晓庆
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China Mobile Communications Group Co Ltd
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Abstract

Translated fromChinese

本发明公开了一种同时同频全双工系统中的数据传输方法和装置,用于解决现有同时同频全双工传输模式下,由于上/下行信道不存在互易性而导致的系统设计难度大且信令开销大的问题。方法包括:第一设备在时隙N内,通过第一组天线中的天线向至少一个第二设备发送数据,以及通过第二组天线中的天线接收至少一个第三设备发送的数据;第一设备在时隙N+T内,通过第一组天线中的天线接收该至少一个第二设备发送的数据,以及通过第二组天线中的天线向该至少一个第三设备发送数据。本发明实现了同时同频全双工的传输模式,并且由于上/下行信道产生了互易性,使得第一设备可以利用上/下行信道所产生的互易性,进行信道估计,从而节省了信令开销。

The invention discloses a data transmission method and device in a simultaneous and same-frequency full-duplex system, which is used to solve the system problem caused by the lack of reciprocity of uplink/downlink channels in the existing simultaneous and same-frequency full-duplex transmission mode The design is difficult and the signaling overhead is high. The method includes: the first device sends data to at least one second device through the antennas in the first group of antennas in the time slot N, and receives data sent by at least one third device through the antennas in the second group of antennas; the first In the time slot N+T, the device receives the data sent by the at least one second device through the antennas in the first group of antennas, and sends the data to the at least one third device through the antennas in the second group of antennas. The present invention realizes the simultaneous same-frequency full-duplex transmission mode, and due to the reciprocity generated by the uplink/downlink channel, the first device can use the reciprocity generated by the uplink/downlink channel to perform channel estimation, thereby saving Signaling overhead.

Description

Translated fromChinese
一种同时同频全双工系统中的数据传输方法和装置A data transmission method and device in a simultaneous and same-frequency full-duplex system

技术领域technical field

本发明涉及通信技术领域,特别涉及一种同时同频全双工系统中的数据传输方法和装置。The invention relates to the field of communication technology, in particular to a data transmission method and device in a simultaneous and same-frequency full-duplex system.

背景技术Background technique

现有的时分双工(Time Division Duplex,TDD)系统中,基站的天线即用于接收来自终端发送的数据,也用于向终端发送数据,在同一时刻,同一根天线仅用于发送下行信号或者接收上行信号。基站的射频架构参见图1所示,图中通过控制开关控制当前时刻该天线n(antenna)是用于发送下行信号还是接收上行信号。由于上/下行信道的互易性,信道信息不必从接收端反馈给发送端。例如,终端在上行发送探测信号,基站获得该探测信号后,将该探测信号作为下行的信道信息,从而对下行发送信号进行预处理。In the existing time division duplex (Time Division Duplex, TDD) system, the antenna of the base station is used to receive data sent from the terminal and also used to send data to the terminal. At the same time, the same antenna is only used to send downlink signals Or receive an uplink signal. The radio frequency architecture of the base station is shown in FIG. 1 , in which a control switch is used to control whether the antenna n (antenna) is used to send downlink signals or receive uplink signals at the current moment. Due to the reciprocity of uplink/downlink channels, channel information does not need to be fed back from the receiver to the transmitter. For example, the terminal sends a sounding signal in uplink, and after obtaining the sounding signal, the base station uses the sounding signal as downlink channel information, so as to preprocess the downlink sending signal.

随着移动互联网业务量飞速增长,TDD系统的容量和覆盖问题(尤其是热点和室内)日益突出,一是需要设计更灵活的上/下行子帧的配置机制,以匹配业务上/下行动态特性,二是需要进一步提高TDD系统的频谱效率,以增强网络容量。为了提高现有系统的容量,提出了同时同频全双工技术,所谓同时同频全双工技术是指,基站在相同的时频资源中可以同时发送下行信号和接收上行信号,从而理论上可以成倍提升频谱效率。With the rapid growth of mobile Internet traffic, the capacity and coverage problems of TDD systems (especially hotspots and indoors) have become increasingly prominent. First, it is necessary to design a more flexible configuration mechanism for uplink/downlink subframes to match the dynamic characteristics of business uplink/downlink , Second, it is necessary to further improve the spectral efficiency of the TDD system to enhance network capacity. In order to improve the capacity of the existing system, a simultaneous and same-frequency full-duplex technology is proposed. The so-called simultaneous and same-frequency full-duplex technology means that the base station can transmit downlink signals and receive uplink signals at the same time in the same time-frequency resource, so theoretically The spectral efficiency can be doubled.

同时同频全双工系统中,需要在基站侧分别配置接收天线和发射天线,以实现在相同的时频资源中可以同时发送下行信号和接收上行信号。全双工系统中,基站的射频架构参见图2A和图2B所示,从图中可以看出,基站的发送通道和接收通道是独立的,并且基站的发送天线和接收天线也是独立的。在这种情况下,上/下行信道不存在互易性,因此,用于进行上/下行信道估计的信道信息必须要通过反馈,发送端才能获知,从而大大增加了系统的设计难度以及信令开销。In a simultaneous same-frequency full-duplex system, a receiving antenna and a transmitting antenna need to be configured separately on the base station side, so that downlink signals can be sent and uplink signals can be received simultaneously in the same time-frequency resource. In the full-duplex system, the radio frequency architecture of the base station is shown in Figure 2A and Figure 2B. It can be seen from the figure that the transmit channel and receive channel of the base station are independent, and the transmit antenna and receive antenna of the base station are also independent. In this case, there is no reciprocity in the uplink/downlink channel. Therefore, the channel information used for uplink/downlink channel estimation must be obtained through feedback, which greatly increases the difficulty of system design and signaling. overhead.

发明内容Contents of the invention

本发明实施例提供了一种同时同频全双工系统中的数据传输方法和装置,用于解决现有全双工传输模式下,由于上/下行信道不存在互易性,而导致的系统设计难度大且信令开销大的问题。The embodiment of the present invention provides a data transmission method and device in a simultaneous and same-frequency full-duplex system, which is used to solve the system problems caused by the lack of reciprocity in uplink/downlink channels under the existing full-duplex transmission mode. The problem of high design difficulty and high signaling overhead.

本发明实施例提供了一种同时同频全双工系统中的数据传输方法,该方法包括:An embodiment of the present invention provides a data transmission method in a simultaneous and same-frequency full-duplex system, the method comprising:

第一设备在时隙N内,通过第一组天线中的天线向至少一个第二设备发送数据,以及通过第二组天线中的天线接收至少一个第三设备发送的数据;In the time slot N, the first device sends data to at least one second device through antennas in the first group of antennas, and receives data sent by at least one third device through antennas in the second group of antennas;

所述第一设备在时隙N+T内,通过第一组天线中的天线接收所述至少一个第二设备发送的数据,以及通过第二组天线中的天线向所述至少一个第三设备发送数据;The first device receives the data sent by the at least one second device through the antennas in the first group of antennas in the time slot N+T, and sends data to the at least one third device through the antennas in the second group of antennas send data;

其中,所述第一设备的所有天线分成两组,所述第一组天线和所述第二组天线所包含的天线不相同;N、T均为整数,且T为时间偏移量。Wherein, all the antennas of the first device are divided into two groups, and the antennas included in the first group and the second group of antennas are different; N and T are both integers, and T is a time offset.

本发明实施例提供的方法,实现了同时同频全双工的传输模式,并且由于上/下行信道产生了互易性,第一设备可以利用上/下行信道的互易性进行信道估计,从而节省了信令开销。The method provided by the embodiment of the present invention realizes the simultaneous same-frequency full-duplex transmission mode, and due to the reciprocity of the uplink/downlink channel, the first device can use the reciprocity of the uplink/downlink channel to perform channel estimation, thereby Signaling overhead is saved.

在实施中,由于当信道的变化时间小于信道的相干时间时,信道的变换可以忽略不计,优选的,所述T的值小于信道的相干时间。In implementation, since when the change time of the channel is less than the coherence time of the channel, the change of the channel is negligible, preferably, the value of T is less than the coherence time of the channel.

在实施中,作为一种优选的实现方式,所述第一设备为基站,所述第二设备与所述第三设备为所述基站所服务的同一终端;或者,In an implementation, as a preferred implementation manner, the first device is a base station, and the second device and the third device are the same terminal served by the base station; or,

所述第一设备为基站,所述第二设备与所述第三设备分别为所述基站所服务的不同终端。The first device is a base station, and the second device and the third device are different terminals served by the base station.

在实施中,作为另一种优选的实现方式,所述第一设备为终端,所述第二设备与所述第三设备为所述终端当前连接的基站。In an implementation, as another preferred implementation manner, the first device is a terminal, and the second device and the third device are base stations to which the terminal is currently connected.

基于上述任一实施例,在实施中,所述方法还包括:Based on any of the above embodiments, in implementation, the method further includes:

所述第一设备根据在时隙N内接收到的所述第三设备发送的数据,获取信道估计;以及,The first device acquires a channel estimate based on the data sent by the third device received in time slot N; and,

所述第一设备根据所述信道估计,确定需要在时隙N+T向所述第三设备发送的数据。The first device determines the data that needs to be sent to the third device in time slot N+T according to the channel estimation.

基于同一发明构思,本发明实施例中还提供了一种同时同频全双工系统中的数据传输装置,该装置包括:Based on the same inventive concept, an embodiment of the present invention also provides a data transmission device in a simultaneous and same-frequency full-duplex system, which includes:

第一传输控制模块,用于在时隙N内,通过第一组天线中的天线向至少一个第二设备发送数据,以及通过第二组天线中的天线接收至少一个第三设备发送的数据;The first transmission control module is configured to transmit data to at least one second device through the antennas in the first group of antennas in the time slot N, and receive data sent by at least one third device through the antennas in the second group of antennas;

第二传输控制模块,用于在时隙N+T内,通过第一组天线中的天线接收所述至少一个第二设备发送的数据,以及通过第二组天线中的天线向所述至少一个第三设备发送数据;The second transmission control module is configured to receive the data sent by the at least one second device through the antennas in the first group of antennas in the time slot N+T, and send data to the at least one device through the antennas in the second group of antennas The third device sends data;

其中,所述基站的所有天线分成两组,所述第一组天线和所述第二组天线所包含的天线不相同;N、T均为整数,且T为时间偏移量。Wherein, all the antennas of the base station are divided into two groups, and the antennas included in the first group and the second group of antennas are different; N and T are both integers, and T is a time offset.

本发明实施例所提供的装置,实现了同时同频全双工的传输模式,并且由于上/下行信道产生了互易性,第一设备可以利用上/下行信道的互易性进行信道估计,从而节省了信令开销。The device provided by the embodiment of the present invention realizes the simultaneous same-frequency full-duplex transmission mode, and due to the reciprocity of the uplink/downlink channel, the first device can use the reciprocity of the uplink/downlink channel to perform channel estimation, Thus, signaling overhead is saved.

在实施中,由于当信道的变化时间小于信道的相干时间时,信道的变换可以忽略不计,优选的,时间偏移量T的值小于信道的相干时间。In implementation, since when the change time of the channel is shorter than the coherence time of the channel, the change of the channel is negligible, preferably, the value of the time offset T is smaller than the coherence time of the channel.

在实施中,作为一种优选的实现方式,所述装置为基站,所述第二设备与所述第三设备为所述基站所服务的同一终端;或者,In an implementation, as a preferred implementation manner, the apparatus is a base station, and the second device and the third device are the same terminal served by the base station; or,

所述装置为基站,所述第二设备与所述第三设备分别为所述基站所服务的不同终端。The apparatus is a base station, and the second device and the third device are different terminals served by the base station.

在实施中,作为另一种优选的实现方式,所述装置为终端,所述第二设备与所述第三设备为所述终端当前连接的基站。In an implementation, as another preferred implementation manner, the apparatus is a terminal, and the second device and the third device are base stations to which the terminal is currently connected.

基于上述任一实施例,在实施中,所述基站还包括:Based on any of the above embodiments, in implementation, the base station further includes:

信道估计模块,用于根据在时隙N内接收到的所述第三设备发送的数据,获取信道估计;以及,根据所述信道估计,确定需要在时隙N+T向所述第三设备发送的数据。A channel estimation module, configured to acquire a channel estimate according to the data sent by the third device received in time slot N; and, according to the channel estimate, determine that the third device needs to send data to the third device in time slot N+T sent data.

基于同一发明构思,本发明实施例中还提供了另一种同时同频全双工系统中的数据传输装置,该装置包括:Based on the same inventive concept, the embodiment of the present invention also provides another data transmission device in a simultaneous and same-frequency full-duplex system, which includes:

所述装置的每个发送通道的输出端设置一个转换开关,且所述装置的每个接收通道的输入端设置一个转换开关,其中,每个所述转换开关的另一端分别与所述装置的第一组天线中的一根天线和所述装置的第二组天线中的一根天线连接,所述装置通过控制每个所述转换开关进行如下传输:The output of each transmission channel of the device is provided with a transfer switch, and the input of each receiving channel of the device is provided with a transfer switch, wherein the other end of each transfer switch is respectively connected to the device's An antenna in the first group of antennas is connected to an antenna in the second group of antennas of the device, and the device transmits as follows by controlling each of the switches:

在时隙N内,通过第一组天线中的天线向至少一个第二设备发送数据,以及通过第二组天线中的天线接收至少一个第三设备发送的数据;In time slot N, send data to at least one second device through antennas in the first group of antennas, and receive data sent by at least one third device through antennas in the second group of antennas;

在时隙N+T内,通过第一组天线中的天线接收所述至少一个第二设备发送的数据,以及通过第二组天线中的天线向所述至少一个第三设备发送数据;In the time slot N+T, receive the data sent by the at least one second device through the antennas in the first group of antennas, and send data to the at least one third device through the antennas in the second group of antennas;

其中,所述第一设备的所有天线分成两组,所述第一组天线和所述第二组天线所包含的天线不相同;N、T均为整数,且T为时间偏移量。Wherein, all the antennas of the first device are divided into two groups, and the antennas included in the first group and the second group of antennas are different; N and T are both integers, and T is a time offset.

本发明实施例提供的装置,实现了同时同频全双工的传输模式,并且由于上/下行信道产生了互易性,第一设备可以利用上/下行信道的互易性进行信道估计,从而节省了信令开销。The device provided by the embodiment of the present invention realizes the simultaneous same-frequency full-duplex transmission mode, and due to the reciprocity of the uplink/downlink channel, the first device can use the reciprocity of the uplink/downlink channel to perform channel estimation, thereby Signaling overhead is saved.

在实施中,作为一种优选的实现方式,所述装置为基站,所述第二设备与所述第三设备为所述基站所服务的同一终端;或者,In an implementation, as a preferred implementation manner, the apparatus is a base station, and the second device and the third device are the same terminal served by the base station; or,

所述装置为基站,所述第二设备与所述第三设备分别为所述基站所服务的不同终端。The apparatus is a base station, and the second device and the third device are different terminals served by the base station.

在实施中,作为另一种优选的实现方式,所述装置为终端,所述第二设备与所述第三设备为所述终端当前连接的基站。In an implementation, as another preferred implementation manner, the apparatus is a terminal, and the second device and the third device are base stations to which the terminal is currently connected.

附图说明Description of drawings

图1为背景技术中TDD系统中的基站的射频架构示意图;FIG. 1 is a schematic diagram of a radio frequency architecture of a base station in a TDD system in the background technology;

图2A为背景技术中同时同频全双工系统中基站的发送射频架构示意图Figure 2A is a schematic diagram of the transmitting radio frequency architecture of the base station in the simultaneous same-frequency full-duplex system in the background technology

图2B为背景技术中同时同频全双工系统中基站的接收射频架构示意图;FIG. 2B is a schematic diagram of the receiving radio frequency architecture of the base station in the simultaneous same-frequency full-duplex system in the background technology;

图3为本发明提供的一种同时同频全双工系统中的数据传输方法的流程示意图;3 is a schematic flow diagram of a data transmission method in a simultaneous and same-frequency full-duplex system provided by the present invention;

图4为本发明提供的一种同时同频全双工系统中的数据传输装置的示意图;4 is a schematic diagram of a data transmission device in a simultaneous and same-frequency full-duplex system provided by the present invention;

图5A为本发明提供的实施例一中时隙N内的数据传输示意图;FIG. 5A is a schematic diagram of data transmission in time slot N in Embodiment 1 provided by the present invention;

图5B为本发明提供的实施例一中时隙N+T内的数据传输示意图。FIG. 5B is a schematic diagram of data transmission in time slot N+T in Embodiment 1 provided by the present invention.

具体实施方式Detailed ways

下面结合说明书附图对本发明实施例作进一步详细描述。应当理解,此处所描述的实施例仅用于说明和解释本发明,并不用于限定本发明。The embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. It should be understood that the embodiments described here are only used to illustrate and explain the present invention, not to limit the present invention.

参见图3所示,本发明实施例一种同时同频全双工系统中的数据传输方法,该方法包括以下步骤:Referring to Fig. 3, the embodiment of the present invention is a data transmission method in a simultaneous same-frequency full-duplex system, the method includes the following steps:

步骤31、第一设备在时隙N内,通过第一组天线中的天线向至少一个第二设备发送数据,以及通过第二组天线中的天线接收至少一个第三设备发送的数据;其中,N为整数。Step 31. The first device transmits data to at least one second device through the antennas in the first group of antennas within the time slot N, and receives data sent by at least one third device through the antennas in the second group of antennas; wherein, N is an integer.

具体的,在时隙N内,该第一设备通过第一组天线中的各天线分别向各第二设备发送数据,并通过第二组天线中的各天线分别接收各第三设备发送的数据,从而在时隙N内实现了全双工的传输模式。Specifically, in time slot N, the first device sends data to each second device through each antenna in the first group of antennas, and receives data sent by each third device through each antenna in the second group of antennas , so that the full-duplex transmission mode is realized in the time slot N.

本发明实施例中,将第一设备的所有天线分成两组,其中,第一组天线和第二组天线所包含的天线不相同。In the embodiment of the present invention, all the antennas of the first device are divided into two groups, where the antennas included in the first group of antennas and the second group of antennas are different.

步骤32、第一设备在时隙N+T内,通过第一组天线中的天线接收该至少一个第二设备发送的数据,以及通过第二组天线中的天线向该至少一个第三设备发送数据;其中,T为时间偏移量,且T为整数。Step 32: The first device receives the data sent by the at least one second device through the antennas in the first group of antennas in the time slot N+T, and sends the data to the at least one third device through the antennas in the second group of antennas Data; where, T is the time offset, and T is an integer.

具体的,在时隙N+T内,该第一设备通过第一组天线中的各天线分别接收各第二设备发送的数据,并通过第二组天线中的各天线分别向各第三设备发送数据,从而在时隙N+T内实现了全双工的传输模式。Specifically, in the time slot N+T, the first device respectively receives the data sent by the second devices through the antennas in the first group of antennas, and transmits data to the third devices respectively through the antennas in the second group of antennas. Send data, thereby realizing the full-duplex transmission mode in the time slot N+T.

需要说明的是,为了便于说明本发明实施例所提供的技术方案,使用了“第一设备”、“第二设备”、“第三设备”的字样,对不同的设备进行区分,但并不对设备的数量、类型和操作优先级进行限制。It should be noted that, in order to facilitate the description of the technical solutions provided by the embodiments of the present invention, the words "first device", "second device" and "third device" are used to distinguish different devices, but not The number, type, and priority of operations of devices are limited.

本发明实施例中,对于同一第二设备,第一设备使用同一根天线分别在时隙N内向该第二设备发送数据以及在时隙N+T内接收该第二设备发送的数据;In the embodiment of the present invention, for the same second device, the first device uses the same antenna to respectively send data to the second device in time slot N and receive data sent by the second device in time slot N+T;

对于同一第三设备,第一设备使用同一根天线分别在时隙N内接收该第三设备发送的数据以及在时隙N+T向该第三设备发送数据。For the same third device, the first device uses the same antenna to respectively receive data sent by the third device in time slot N and send data to the third device in time slot N+T.

本发明实施例中,第一设备在时隙N内,通过第一组天线中的天线向至少一个第二设备发送数据,以及通过第二组天线中的天线接收至少一个第三设备发送的数据;以及,第一设备在时隙N+T内,通过第一组天线中的天线接收该至少一个第二设备发送的数据,以及通过第二组天线中的天线向该至少一个第三设备发送数据,从而实现了同时同频全双工的传输模式;并且,由于上/下行信道产生了互易性,第一设备可以利用上/下行信道所产生的互易性,进行信道估计,从而节省了信令开销。In the embodiment of the present invention, the first device sends data to at least one second device through the antennas in the first group of antennas in the time slot N, and receives data sent by at least one third device through the antennas in the second group of antennas and, the first device receives the data sent by the at least one second device through the antennas in the first group of antennas in the time slot N+T, and sends the data to the at least one third device through the antennas in the second group of antennas Data, thereby realizing the transmission mode of full-duplex at the same time at the same frequency; and, due to the reciprocity generated by the uplink/downlink channel, the first device can use the reciprocity generated by the uplink/downlink channel to perform channel estimation, thereby saving signaling overhead.

在实施中,由于当信道的变化时间小于信道的相干时间时,信道的变换可以忽略不计,优选的,时间偏移量T的值小于信道的相干时间。In implementation, since when the change time of the channel is shorter than the coherence time of the channel, the change of the channel is negligible, preferably, the value of the time offset T is smaller than the coherence time of the channel.

具体的,信道的相干时间可以表示为多普勒扩展的倒数,即该信道对应的多普勒频谱所扩展的频率值的倒数。例如,假设多普勒频谱扩展了10KHz,则信道的相干时间即为0.1ms(毫秒)。Specifically, the coherence time of the channel may be expressed as the reciprocal of the Doppler spread, that is, the reciprocal of the frequency value spread by the Doppler spectrum corresponding to the channel. For example, assuming that the Doppler spectrum is extended by 10 KHz, the coherence time of the channel is 0.1 ms (millisecond).

在实施中,第一设备可以是基站,也可以是终端,具体包括以下三种优选的实现方式:In implementation, the first device may be a base station or a terminal, specifically including the following three preferred implementation manners:

方式1、第一设备为基站,第二设备与第三设备为该基站所服务的同一终端。Mode 1. The first device is a base station, and the second device and the third device are the same terminal served by the base station.

该方式下,步骤31具体为:基站在时隙N内,通过该基站的第一组天线中的天线向该基站所属服务的至少一个终端发送下行信号,以及通过该基站的第二组天线中的天线接收该至少一个终端发送的上行信号;In this mode, step 31 specifically includes: the base station transmits a downlink signal to at least one terminal served by the base station through the antennas in the first group of antennas of the base station in the time slot N, and transmits a downlink signal through the antennas in the second group of antennas of the base station. The antenna receives the uplink signal sent by the at least one terminal;

相应的,针对该至少一个终端中的各终端,该终端在时隙N内,通过该终端的第一组天线中的天线接收该基站发送的下行信号,以及通过该终端的第二组天线中的天线向该基站发送上行信号,其中,该终端需要在现有结构上进行改进,以使该终端能够同时接收下行信号和发送上行信号,即该终端的所有天线也分成两组,且该终端的第一组天线和第二组天线所包含的天线不相同。Correspondingly, for each terminal in the at least one terminal, the terminal receives the downlink signal sent by the base station through the antennas in the first group of antennas of the terminal in the time slot N, and receives the downlink signal sent by the base station through the antennas in the second group of antennas of the terminal The antennas of the terminal send uplink signals to the base station, wherein the terminal needs to be improved on the existing structure so that the terminal can receive downlink signals and send uplink signals at the same time, that is, all antennas of the terminal are also divided into two groups, and the terminal The first group of antennas and the second group of antennas in the group contain different antennas.

步骤32具体为:基站在时隙N+T内,通过第一组天线中的天线接收该至少一个终端发送的上行信号,以及通过第二组天线中的天线向该至少一个终端发送下行信号;Step 32 is specifically: the base station receives the uplink signal sent by the at least one terminal through the antenna in the first group of antennas in the time slot N+T, and sends the downlink signal to the at least one terminal through the antenna in the second group of antennas;

相应的,针对该至少一个终端中的各终端,该终端在时隙N+T内,通过该终端的第一组天线中的天线向该基站发送上行信号,以及通过该终端的第二组天线中的天线接收该基站发送的下行信号。Correspondingly, for each terminal in the at least one terminal, the terminal sends an uplink signal to the base station through the antenna in the first group of antennas of the terminal in the time slot N+T, and sends an uplink signal to the base station through the second group of antennas of the terminal The antenna in receives the downlink signal sent by the base station.

该方式下,对于基站所服务的同一终端,该基站可以实现同时发送下行信号和接收上行信号;相应的,对于该终端来说,该终端也可以实现同时发送上行信号和接收下行信号。由于基站和终端都可以实现同时发送下行信号和接收上行信号,从而成倍提升了频谱效率。In this manner, for the same terminal served by the base station, the base station can simultaneously transmit downlink signals and receive uplink signals; correspondingly, for the terminal, the terminal can also simultaneously transmit uplink signals and receive downlink signals. Since both the base station and the terminal can simultaneously transmit downlink signals and receive uplink signals, the spectrum efficiency is doubled.

方式2、第一设备为基站,第二设备与第三设备为该基站所服务的不同终端(记为第一终端和第二终端,这里的“第一”和“第二”只是为了区分该基站所服务的不同终端,不对终端的数量和类型进行限制)。Mode 2. The first device is a base station, and the second device and the third device are different terminals served by the base station (referred to as the first terminal and the second terminal, where "first" and "second" are only for distinguishing the Different terminals served by the base station, the number and type of terminals are not limited).

该方式下,步骤31具体为:基站在时隙N内,通过该基站的第一组天线中的天线向至少一个第一终端发送下行信号,以及通过该基站的第二组天线中的天线接收至少一个第二终端发送的上行信号。In this manner, step 31 specifically includes: the base station transmits a downlink signal to at least one first terminal through the antennas in the first group of antennas of the base station within the time slot N, and receives a downlink signal through the antennas in the second group of antennas of the base station. An uplink signal sent by at least one second terminal.

相应的,针对该至少一个第一终端中的各第一终端,该第一终端在时隙N内,接收基站发送的下行信号;以及,针对该至少一个第二终端中的各第二终端,该第二终端在时隙N内,向基站发送上行信号。Correspondingly, for each of the at least one first terminal, the first terminal receives a downlink signal sent by the base station within the time slot N; and, for each of the at least one second terminal, The second terminal sends an uplink signal to the base station in the time slot N.

步骤32具体为:基站在时隙N+T内,通过第一组天线中的天线接收该至少一个第一终端发送的上行信号,以及通过第二组天线中的天线向该至少一个第二终端发送下行信号。Step 32 is specifically: the base station receives the uplink signal sent by the at least one first terminal through the antennas in the first group of antennas in the time slot N+T, and sends the at least one second terminal signal to the at least one second terminal through the antennas in the second group of antennas Send downlink signal.

相应的,针对该至少一个第一终端中的各第一终端,该第一终端在时隙N+T内,向该基站发送上行信号;以及,针对该至少一个第二终端中的各第二终端,该第二终端在时隙N+T内,接收该基站发送的下行信号。Correspondingly, for each first terminal of the at least one first terminal, the first terminal sends an uplink signal to the base station within the time slot N+T; and, for each second terminal of the at least one second terminal The terminal, the second terminal receives the downlink signal sent by the base station in the time slot N+T.

该方式下,对于任意两个不同的终端,基站可以实现同时发送下行信号(即向第一终端或第二终端发送下行信号)和接收上行信号(即接收第二终端或第一终端发送的上行信号)。对于第一终端或第二终端来说,可以不改变现有结构,在不同的时刻实现发送上行信号和接收下行信号。由于基站可以实现同时发送下行信号和接收上行信号,从而成倍提升了频谱效率。In this way, for any two different terminals, the base station can simultaneously send downlink signals (that is, send downlink signals to the first terminal or the second terminal) and receive uplink signals (that is, receive uplink signals sent by the second terminal or the first terminal). Signal). For the first terminal or the second terminal, the existing structure may not be changed, and the sending of the uplink signal and the reception of the downlink signal may be implemented at different times. Since the base station can simultaneously transmit downlink signals and receive uplink signals, the spectral efficiency is doubled.

方式3、第一设备为终端,第二设备与第三设备为该终端当前连接的基站。Way 3. The first device is a terminal, and the second device and the third device are base stations currently connected to the terminal.

该方式下,步骤31具体为:终端在时隙N内,通过该终端的第一组天线中的天线向该终端所属的基站发送上行信号,以及通过该终端的第二组天线中的天线接收该基站发送的下行信号。In this mode, step 31 specifically includes: the terminal sends an uplink signal to the base station to which the terminal belongs through the antennas in the first group of antennas of the terminal in the time slot N, and receives an uplink signal through the antennas in the second group of antennas of the terminal. The downlink signal sent by the base station.

相应的,该终端所属的基站在时隙N内,通过该基站的第一组天线中的天线接收终端发送的上行信号;以及,通过该基站的第二组天线中的天线向该终端发送下行信号,其中,该基站需要在现有结构上进行改进,以使该基站能够同时接收上行信号和发送下行信号,即该基站的所有天线也分成两组,且该基站的第一组天线和第二组天线所包含的天线不相同。Correspondingly, in the time slot N, the base station to which the terminal belongs receives the uplink signal sent by the terminal through the antenna in the first group of antennas of the base station; and sends a downlink signal to the terminal through the antenna in the second group of antennas of the base station signal, wherein the base station needs to be improved on the existing structure so that the base station can receive uplink signals and send downlink signals at the same time, that is, all antennas of the base station are also divided into two groups, and the first group of antennas and the second group of antennas of the base station The antennas included in the two groups of antennas are different.

步骤32具体为:终端在时隙N+T内,通过该终端的第一组天线中的天线接收该终端所属的基站发送的下行信号,以及通过该终端的第二组天线中的天线向该基站发送上行信号。Step 32 is specifically: the terminal receives the downlink signal sent by the base station to which the terminal belongs through the antenna in the first group of antennas of the terminal in the time slot N+T, and transmits the downlink signal to the terminal through the antenna in the second group of antennas of the terminal. The base station sends an uplink signal.

相应的,该终端所属的基站在时隙N+T内,通过该基站的第一组天线向该终端发送下行信号;以及,通过该基站的第二组天线接收该终端发送的上行信号。Correspondingly, the base station to which the terminal belongs sends downlink signals to the terminal through the first group of antennas of the base station in time slot N+T; and receives uplink signals sent by the terminal through the second group of antennas of the base station.

该方式下,由于基站和终端都可以实现同时发送下行信号和接收上行信号,从而成倍提升了频谱效率。In this mode, since both the base station and the terminal can transmit downlink signals and receive uplink signals at the same time, the spectral efficiency is doubled.

基于上述任一实施例,在实施中,步骤31之后,且步骤32之前,该方法还包括:Based on any of the above embodiments, in implementation, after step 31 and before step 32, the method further includes:

第一设备根据在时隙N内接收到的第三设备发送的数据,获取信道估计;以及,The first device obtains channel estimation according to the data sent by the third device received in time slot N; and,

第一设备根据获取到的信道估计,确定需要在时隙N+T向该第三设备发送的数据。The first device determines the data that needs to be sent to the third device in time slot N+T according to the acquired channel estimation.

下面以上述方式2为例,对第一设备利用上/下信道的互易性进行信道估计进行详细说明,其他情况与此类似,此处不再一一举例说明。Taking the above-mentioned method 2 as an example, the channel estimation performed by the first device by using the reciprocity of the up/down channel will be described in detail below. Other situations are similar and will not be described here one by one.

该方式下,基站根据在时隙N内接收到的第二终端发送的上行信号,获取上行信道估计;以及,基站根据获取到的上行信道估计,确定需要在时隙N+T向该第二终端发送的下行信号。In this manner, the base station obtains an uplink channel estimate according to the received uplink signal sent by the second terminal in time slot N; and, based on the obtained uplink channel estimate, the base station The downlink signal sent by the terminal.

具体的,在时隙N内,基站的发送天线(即第一组天线)到任意一个第一终端的天线的信道矩阵为H1,该矩阵H1为M1×Tn1维度,其中,M1为该第一终端的天线个数,Tn1为基站的第一组天线中所包含的天线的个数;任意一个第二终端的天线到基站的接收天线(即第二组天线)的信道矩阵H2,该矩阵H2为Tn2×M2维度,其中,M2为该第二终端的天线个数,Tn2为基站的第二组天线中所包含的天线的个数;Specifically, in the time slot N, the channel matrix between the base station's transmitting antenna (that is, the first group of antennas) and any antenna of the first terminal is H1, and the matrix H1 has a dimension of M1×Tn1 , where M1 is the The number of antennas of a terminal, Tn1 is the number of antennas included in the first group of antennas of the base station; the channel matrix H2 from the antenna of any second terminal to the receiving antenna (i.e. the second group of antennas) of the base station, the The matrix H2 is a dimension of Tn2 × M2, where M2 is the number of antennas of the second terminal, and Tn2 is the number of antennas included in the second group of antennas of the base station;

在时隙N+T内,根据信道的互易性,基站的发送天线(即第二组天线)到任意一个第二终端的天线的信道矩阵为H2,该矩阵H2为M2×Tn2维度,其中,M2为该第二终端的天线个数,Tn2为基站的第二组天线中所包含的天线的个数;任意一个第一终端的天线到基站的接收天线(即第一组天线)的信道矩阵H1,该矩阵H1为Tn1×M1维度,其中,M1为该第一终端的天线个数,Tn1为基站的第一组天线中所包含的天线的个数。In the time slot N+T, according to the reciprocity of the channel, the channel matrix from the transmitting antenna of the base station (that is, the second group of antennas) to any antenna of the second terminal is H2, and the matrix H2 has a dimension of M2×Tn2 , Wherein, M2 is the number of antennas of the second terminal,Tn2 is the number of antennas included in the second group of antennas of the base station; The channel matrix H1 of the matrix H1 has a dimension of Tn1 ×M1, where M1 is the number of antennas of the first terminal, and Tn1 is the number of antennas included in the first group of antennas of the base station.

本发明实施例中,基站的每根天线对应的发送电路(即发送通道)响应与接收电路(即接收通道)响应的比值都相同,以保证基站可以利用信道的互易性,进行信道估计。In the embodiment of the present invention, each antenna of the base station corresponds to the same ratio of the response of the transmitting circuit (i.e., the transmitting channel) to the response of the receiving circuit (i.e., the receiving channel), so as to ensure that the base station can use the reciprocity of the channel to perform channel estimation.

上述方法处理流程可以用软件程序实现,该软件程序可以存储在存储介质中,当存储的软件程序被调用时,执行上述方法步骤。The processing flow of the above method can be realized by a software program, and the software program can be stored in a storage medium, and when the stored software program is invoked, the steps of the above method are executed.

基于同一发明构思,本发明实施例中还提供了一种同时同频全双工系统中的数据传输装置,由于该装置解决问题的原理与上述图3所示的一种同时同频全双工系统中的数据传输方法相似,因此该装置的实施可以参见方法的实施,重复之处不再赘述。Based on the same inventive concept, an embodiment of the present invention also provides a data transmission device in a simultaneous and same-frequency full-duplex system. Since the problem-solving principle of the device is the same as that of the simultaneous and same-frequency full-duplex system shown in FIG. 3 The data transmission method in the system is similar, so the implementation of the device can refer to the implementation of the method, and the repetition will not be repeated.

参见图4所示,本发明实施例提供的一种同时同频全双工系统中的数据传输装置4,包括:Referring to FIG. 4, a data transmission device 4 in a simultaneous and same-frequency full-duplex system provided by an embodiment of the present invention includes:

第一传输控制模块41,用于在时隙N内,通过第一组天线中的天线向至少一个第二设备发送数据,以及通过第二组天线中的天线接收至少一个第三设备发送的数据;The first transmission control module 41 is configured to send data to at least one second device through the antennas in the first group of antennas in the time slot N, and receive data sent by at least one third device through the antennas in the second group of antennas ;

第二传输控制模块42,用于在时隙N+T内,通过第一组天线中的天线接收该至少一个第二设备发送的数据,以及通过第二组天线中的天线向该至少一个第三设备发送数据;The second transmission control module 42 is configured to receive the data sent by the at least one second device through the antennas in the first group of antennas in the time slot N+T, and send data to the at least one first device through the antennas in the second group of antennas Three devices send data;

其中,该装置的所有天线分成两组,第一组天线和第二组天线所包含的天线不同;N、T均为整数,且T为时间偏移量。Wherein, all the antennas of the device are divided into two groups, and the first group of antennas and the second group of antennas contain different antennas; N and T are both integers, and T is a time offset.

具体的,在时隙N内,第一传输控制模块41通过第一组天线中的各天线分别向各第二设备发送数据,并通过第二组天线中的各天线分别接收各第三设备发送的数据,从而在时隙N内实现了全双工的传输模式;在时隙N+T内,第二传输控制模块42通过第一组天线中的各天线分别接收各第二设备发送的数据,并通过第二组天线中的各天线分别向各第三设备发送数据,从而在时隙N+T内实现了全双工的传输模式。Specifically, in time slot N, the first transmission control module 41 sends data to each second device through each antenna in the first group of antennas, and receives data sent by each third device through each antenna in the second group of antennas. data, thereby realizing the full-duplex transmission mode in the time slot N; in the time slot N+T, the second transmission control module 42 receives the data sent by the second devices respectively through the antennas in the first group of antennas , and transmit data to each third device through each antenna in the second group of antennas, thereby realizing a full-duplex transmission mode in the time slot N+T.

本发明实施例中,对于同一第二设备,第一传输控制模块41和第二传输控制模块42使用同一根天线分别在时隙N内向该第二设备发送数据以及在时隙N+T内接收该第二设备发送的数据;对于同一第三设备,第一传输控制模块41和第二传输控制模块42使用同一根天线分别在时隙N内接收该第三设备发送的数据以及在时隙N+T向该第二终端发送数据。In this embodiment of the present invention, for the same second device, the first transmission control module 41 and the second transmission control module 42 use the same antenna to send data to the second device in time slot N and receive data in time slot N+T respectively. The data sent by the second device; for the same third device, the first transmission control module 41 and the second transmission control module 42 use the same antenna to respectively receive the data sent by the third device in time slot N and to receive the data sent by the third device in time slot N. +T Send data to the second terminal.

本发明实施例所提供的装置,能够实现同时同频全双工的传输模式,并且,由于上/下行信道产生了互易性,该装置可以利用上/下行信道所产生的互易性,进行信道估计,从而节省了信令开销。The device provided by the embodiment of the present invention can realize simultaneous same-frequency full-duplex transmission mode, and, due to the reciprocity generated by the uplink/downlink channel, the device can use the reciprocity generated by the uplink/downlink channel to perform Channel estimation, thus saving signaling overhead.

在实施中,由于当信道的变化时间小于信道的相干时间时,信道的变换可以忽略不计,优选的,时间偏移量T的值小于信道的相干时间。In implementation, since when the change time of the channel is shorter than the coherence time of the channel, the change of the channel is negligible, preferably, the value of the time offset T is smaller than the coherence time of the channel.

在实施中,本发明是所提供的装置可以基站,也可以是终端,具体包括以下三种优选的实现方式:In practice, the device provided by the present invention can be a base station or a terminal, specifically including the following three preferred implementations:

方式1、本发明是所提供的装置为基站,第二设备与第三设备为该基站所服务的同一终端。Method 1. The device provided by the present invention is a base station, and the second device and the third device are the same terminal served by the base station.

该方式下,由于基站和终端都可以实现同时发送下行信号和接收上行信号,从而成倍提升了频谱效率,具体参见上述方法部分中的方式1的描述,此处不再赘述。In this way, since both the base station and the terminal can simultaneously send downlink signals and receive uplink signals, the spectral efficiency is doubled. For details, refer to the description of way 1 in the above method part, and details will not be repeated here.

方式2、本发明是所提供的装置为基站,第二设备与第三设备为该基站所服务的不同终端。Method 2. The device provided by the present invention is a base station, and the second device and the third device are different terminals served by the base station.

该方式下,由于基站可以实现同时发送下行信号和接收上行信号,从而成倍提升了频谱效率,具体参见上述方法部分中的方式2的描述,此处不再赘述。In this way, since the base station can simultaneously send downlink signals and receive uplink signals, the spectral efficiency is doubled. For details, refer to the description of way 2 in the above method part, and details will not be repeated here.

方式3、本发明是所提供的装置为终端,第二设备与第三设备为该终端当前连接的基站。Method 3. The device provided by the present invention is a terminal, and the second device and the third device are base stations currently connected to the terminal.

该方式下,由于基站和终端都可以实现同时发送下行信号和接收上行信号,从而成倍提升了频谱效率,具体参见上述方法部分中的方式3的描述,此处不再赘述。In this way, since both the base station and the terminal can simultaneously send downlink signals and receive uplink signals, the spectral efficiency is doubled. For details, refer to the description of way 3 in the above method part, and details will not be repeated here.

基于上述任一实施例,在实施中,该装置4还包括:Based on any of the above embodiments, in implementation, the device 4 also includes:

信道估计模块43,根据在时隙N内接收到的第三设备发送的数据,获取信道估计;以及,根据获取到的信道估计,确定需要在时隙N+T向该第三设备发送的数据。The channel estimation module 43 obtains a channel estimate according to the data sent by the third device received in the time slot N; and, according to the obtained channel estimate, determines the data that needs to be sent to the third device in the time slot N+T .

下面结合硬件结构,对本发明实施例提供的装置实现同时同频全双工系统中的数据传输的过程进行说明。In the following, the process of realizing data transmission in the simultaneous and same-frequency full-duplex system by the device provided by the embodiment of the present invention will be described in combination with the hardware structure.

该装置的每个发送通道(即发送电路)的输出端设置一个转换开关,且该装置的每个接收通道(电路)的输入端设置一个转换开关,其中,每个转换开关的另一端分别与该装置的第一组天线中的一根天线和该装置的第二组天线中的一根天线连接,该装置通过控制每个转换开关进行如下传输:The output end of each transmission channel (i.e. transmission circuit) of the device is provided with a changeover switch, and the input end of each reception channel (circuit) of the device is provided with a changeover switch, wherein the other end of each changeover switch is respectively connected to An antenna of the first set of antennas of the device is connected to an antenna of the second set of antennas of the device, and the device, by controlling each switch, transmits as follows:

在时隙N内,通过第一组天线中的天线向至少一个第二设备发送数据,以及通过第二组天线中的天线接收至少一个第三设备发送的数据,其中,N为整数;In time slot N, send data to at least one second device through antennas in the first group of antennas, and receive data sent by at least one third device through antennas in the second group of antennas, where N is an integer;

在时隙N+T内,通过第一组天线中的天线接收该至少一个第二设备发送的数据,以及通过第二组天线中的天线向该至少一个第三设备发送数据,其中,T为时间偏移量且T为整数;In the time slot N+T, receive the data sent by the at least one second device through the antennas in the first group of antennas, and send data to the at least one third device through the antennas in the second group of antennas, where T is time offset and T is an integer;

其中,该装置的所有天线分成两组,且第一组天线和第二组天线所包含的天线不相同。Wherein, all the antennas of the device are divided into two groups, and the antennas included in the first group of antennas and the second group of antennas are different.

本发明实施例所提供的装置,能够实现同时同频全双工的传输模式,并且,由于上/下行信道产生了互易性,该装置可以利用上/下行信道所产生的互易性,进行信道估计,从而节省了信令开销。The device provided by the embodiment of the present invention can realize simultaneous same-frequency full-duplex transmission mode, and, due to the reciprocity generated by the uplink/downlink channel, the device can use the reciprocity generated by the uplink/downlink channel to perform Channel estimation, thus saving signaling overhead.

在实施中,由于当信道的变化时间小于信道的相干时间时,信道的变换可以忽略不计,优选的,时间偏移量T的值小于信道的相干时间。In an implementation, since when the change time of the channel is less than the coherence time of the channel, the change of the channel is negligible, preferably, the value of the time offset T is less than the coherence time of the channel.

在实施中,本发明是所提供的装置可以基站,也可以是终端,具体包括以下三种优选的实现方式:In practice, the device provided by the present invention can be a base station or a terminal, specifically including the following three preferred implementations:

方式1、本发明实施例所提供的装置为基站,第二设备与第三设备为该基站所服务的同一终端。Mode 1. The device provided by the embodiment of the present invention is a base station, and the second device and the third device are the same terminal served by the base station.

该方式下,由于基站和终端都可以实现同时发送下行信号和接收上行信号,从而成倍提升了频谱效率,具体参见上述方法部分中的方式1的描述,此处不再赘述。In this way, since both the base station and the terminal can simultaneously send downlink signals and receive uplink signals, the spectral efficiency is doubled. For details, refer to the description of way 1 in the above method part, and details will not be repeated here.

方式2、本发明实施例所提供的装置为基站,第二设备与第三设备为该基站所服务的不同终端。Mode 2. The device provided by the embodiment of the present invention is a base station, and the second device and the third device are different terminals served by the base station.

该方式下,由于基站可以实现同时发送下行信号和接收上行信号,从而成倍提升了频谱效率,具体参见上述方法部分中的方式2的描述,此处不再赘述。In this way, since the base station can simultaneously send downlink signals and receive uplink signals, the spectrum efficiency is doubled. For details, refer to the description of way 2 in the above method part, which will not be repeated here.

方式3、本发明实施例所提供的装置为终端,第二设备与第三设备为该终端当前连接的基站。Mode 3. The device provided by the embodiment of the present invention is a terminal, and the second device and the third device are base stations currently connected to the terminal.

该方式下,由于基站和终端都可以实现同时发送下行信号和接收上行信号,从而成倍提升了频谱效率,具体参见上述方法部分中的方式3的描述,此处不再赘述。In this way, since both the base station and the terminal can simultaneously send downlink signals and receive uplink signals, the spectral efficiency is doubled. For details, refer to the description of way 3 in the above method part, and details will not be repeated here.

下面以方式2为例进行说明,本实施例中,基站包含四根天线为例进行说明,参见图5A所示,天线11和天线12属于第一组天线,天线21和天线22属于第二组天线,其中,转换开关1的一端与发送通道1连接,且另一端分别与天线11和天线21连接,转换开关2的一端与发送通道2连接,且另一端分别与天线12和天线22连接,转换开关3的一端与接收通道1连接,且另一端分别与天线11和天线21连接,转换开关4的一端与接收通道2连接,且另一端分别与天线12和天线22连接。The following takes method 2 as an example for illustration. In this embodiment, the base station includes four antennas as an example for illustration. Referring to FIG. 5A, antenna 11 and antenna 12 belong to the first group of antennas, and antenna 21 and antenna 22 belong to the second group. Antenna, wherein one end of the transfer switch 1 is connected to the transmission channel 1, and the other end is connected to the antenna 11 and the antenna 21 respectively, and one end of the transfer switch 2 is connected to the transmission channel 2, and the other end is connected to the antenna 12 and the antenna 22 respectively, One end of switch 3 is connected to receiving channel 1 and the other end is connected to antenna 11 and antenna 21 respectively. One end of switch 4 is connected to receiving channel 2 and the other end is connected to antenna 12 and antenna 22 respectively.

在时隙N内,如图5A所示,控制转换开关1将发送通道1与天线11连接,基站通过天线11向终端1发送下行信号;控制转换开关2将发送通道2与天线12连接,基站通过天线12向终端2发送下行信号;控制转换开关3将接收通道1与天线21连接,基站通过天线21接收终端3发送的上行信号;控制转换开关4将接收通道2与天线22连接,基站通过天线22接收终端4发送的上行信号,从而在时隙N内,实现了全双工传输模式;In the time slot N, as shown in Figure 5A, the control switch 1 connects the transmission channel 1 to the antenna 11, and the base station sends a downlink signal to the terminal 1 through the antenna 11; the control switch 2 connects the transmission channel 2 to the antenna 12, and the base station Send a downlink signal to the terminal 2 through the antenna 12; control the switch 3 to connect the receiving channel 1 to the antenna 21, and the base station receives the uplink signal sent by the terminal 3 through the antenna 21; control the switch 4 to connect the receiving channel 2 to the antenna 22, and the base station passes through The antenna 22 receives the uplink signal sent by the terminal 4, so that in the time slot N, a full-duplex transmission mode is realized;

在时隙N+T内,如图5B所示,控制转换开关3将接收通道1与天线11连接,基站通过天线11接收终端1发送的上行信号;控制转换开关4将接收通道2与天线12连接,基站通过天线12接收终端2发送的上行信号;控制转换开关1将发送通道1与天线21连接,基站通过天线21向终端3发送下行信号;控制转换开关2将发送通道2与天线22连接,基站通过天线22向终端4发送下行信号,从而在时隙N+T内,实现了全双工传输模式。In the time slot N+T, as shown in Figure 5B, the control switch 3 connects the receiving channel 1 to the antenna 11, and the base station receives the uplink signal sent by the terminal 1 through the antenna 11; the control switch 4 connects the receiving channel 2 to the antenna 12 connection, the base station receives the uplink signal sent by the terminal 2 through the antenna 12; the control switch 1 connects the transmission channel 1 to the antenna 21, and the base station sends a downlink signal to the terminal 3 through the antenna 21; the control switch 2 connects the transmission channel 2 to the antenna 22 , the base station sends a downlink signal to the terminal 4 through the antenna 22, thereby realizing a full-duplex transmission mode in the time slot N+T.

从图5A和图5B可以看出,对于第一组天线对应的各第一终端,以终端1为例,终端1通过同一根天线11分别在时隙N内接收该基站发送的下行信号以及在时隙N+T内向该基站发送上行信号,因此,终端1可以在时隙N对下行信道进行估计,并用于在时隙N+T的上行发送,从而实现了上/下行信道的互易性;It can be seen from FIG. 5A and FIG. 5B that for each first terminal corresponding to the first group of antennas, taking terminal 1 as an example, terminal 1 receives the downlink signal sent by the base station in time slot N through the same antenna 11 and receives the downlink signal in time slot N. The uplink signal is sent to the base station in time slot N+T, therefore, terminal 1 can estimate the downlink channel in time slot N and use it for uplink transmission in time slot N+T, thus realizing the reciprocity of uplink/downlink channels ;

对于第二组天线对应的各第二终端,以终端3为例,基站使用同一根天线21分别在时隙N内接收该终端3发送的上行信号以及在时隙N+T内向该终端3发送下行信号,因此,基站可以在时隙N对上行信道进行估计,并用于在时隙N+T的下行发送,实现了上/下行信道的互易性。For each second terminal corresponding to the second group of antennas, taking terminal 3 as an example, the base station uses the same antenna 21 to receive the uplink signal sent by the terminal 3 in time slot N and send the uplink signal to the terminal 3 in time slot N+T. The downlink signal, therefore, the base station can estimate the uplink channel in time slot N, and use it for downlink transmission in time slot N+T, realizing the reciprocity of uplink/downlink channels.

本领域内的技术人员应明白,本发明的实施例可提供为方法、系统、或计算机程序产品。因此,本发明可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且,本发明可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。Those skilled in the art should understand that the embodiments of the present invention may be provided as methods, systems, or computer program products. Accordingly, the present invention can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.

本发明是参照根据本发明实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器,使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It should be understood that each procedure and/or block in the flowchart and/or block diagram, and a combination of procedures and/or blocks in the flowchart and/or block diagram can be realized by computer program instructions. These computer program instructions may be provided to a general purpose computer, special purpose computer, embedded processor, or processor of other programmable data processing equipment to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing equipment produce a An apparatus for realizing the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中,使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品,该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to operate in a specific manner, such that the instructions stored in the computer-readable memory produce an article of manufacture comprising instruction means, the instructions The device realizes the function specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上,使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理,从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。These computer program instructions can also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process, thereby The instructions provide steps for implementing the functions specified in the flow chart or blocks of the flowchart and/or the block or blocks of the block diagrams.

尽管已描述了本发明的优选实施例,但本领域内的技术人员一旦得知了基本创造性概念,则可对这些实施例作出另外的变更和修改。所以,所附权利要求意欲解释为包括优选实施例以及落入本发明范围的所有变更和修改。While preferred embodiments of the invention have been described, additional changes and modifications to these embodiments can be made by those skilled in the art once the basic inventive concept is appreciated. Therefore, it is intended that the appended claims be construed to cover the preferred embodiment as well as all changes and modifications which fall within the scope of the invention.

显然,本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样,倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内,则本发明也意图包含这些改动和变型在内。Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

Claims (10)

Translated fromChinese
1.一种同时同频全双工系统中的数据传输方法,其特征在于,该方法包括:1. A data transmission method in the same-frequency full-duplex system at the same time, is characterized in that, the method comprises:第一设备在时隙N内,通过第一组天线中的天线向至少一个第二设备发送数据,以及通过第二组天线中的天线接收至少一个第三设备发送的数据;In the time slot N, the first device sends data to at least one second device through antennas in the first group of antennas, and receives data sent by at least one third device through antennas in the second group of antennas;所述第一设备在时隙N+T内,通过第一组天线中的同一根天线接收所述至少一个第二设备发送的数据,以及通过第二组天线中的同一根天线向所述至少一个第三设备发送数据;The first device receives the data sent by the at least one second device through the same antenna in the first group of antennas in the time slot N+T, and sends data to the at least one second device through the same antenna in the second group of antennas. a third device sends data;其中,所述第一设备的所有天线分成两组,所述第一组天线和所述第二组天线所包含的天线不相同;N、T均为整数,且T为时间偏移量。Wherein, all the antennas of the first device are divided into two groups, and the antennas included in the first group and the second group of antennas are different; N and T are both integers, and T is a time offset.2.如权利要求1所述的方法,其特征在于,所述T的值小于信道的相干时间。2. The method according to claim 1, wherein the value of T is smaller than the coherence time of the channel.3.如权利要求1所述的方法,其特征在于,所述第一设备为基站,所述第二设备与所述第三设备为所述基站所服务的同一终端;其中,所述终端至少有两根天线;或者,3. The method according to claim 1, wherein the first device is a base station, and the second device and the third device are the same terminal served by the base station; wherein the terminal is at least have two antennas; or,所述第一设备为基站,所述第二设备与所述第三设备分别为所述基站所服务的不同终端。The first device is a base station, and the second device and the third device are different terminals served by the base station.4.如权利要求1所述的方法,其特征在于,所述第一设备为终端,所述第二设备与所述第三设备为所述终端当前连接的基站。4. The method according to claim 1, wherein the first device is a terminal, and the second device and the third device are base stations currently connected to the terminal.5.如权利要求1~4任一项所述的方法,其特征在于,所述方法还包括:5. The method according to any one of claims 1 to 4, characterized in that the method further comprises:所述第一设备根据在时隙N内接收到的所述第三设备发送的数据,获取信道估计;以及,The first device acquires a channel estimate based on the data sent by the third device received in time slot N; and,所述第一设备根据所述信道估计,确定需要在时隙N+T向所述第三设备发送的数据。The first device determines the data that needs to be sent to the third device in time slot N+T according to the channel estimation.6.一种同时同频全双工系统中的数据传输装置,其特征在于,该装置包括:6. A data transmission device in a simultaneous co-frequency full-duplex system, characterized in that the device comprises:第一传输控制模块,用于在时隙N内,通过第一组天线中的天线向至少一个第二设备发送数据,以及通过第二组天线中的天线接收至少一个第三设备发送的数据;The first transmission control module is configured to transmit data to at least one second device through the antennas in the first group of antennas in the time slot N, and receive data sent by at least one third device through the antennas in the second group of antennas;第二传输控制模块,用于在时隙N+T内,通过第一组天线中的同一根天线接收所述至少一个第二设备发送的数据,以及通过第二组天线中的同一根天线向所述至少一个第三设备发送数据;The second transmission control module is configured to receive the data sent by the at least one second device through the same antenna in the first group of antennas in the time slot N+T, and send data to the at least one second device through the same antenna in the second group of antennas the at least one third device transmits data;其中,所述装置的所有天线分成两组,所述第一组天线和所述第二组天线所包含的天线不相同;N、T均为整数,且T为时间偏移量。Wherein, all the antennas of the device are divided into two groups, and the antennas included in the first group of antennas and the second group of antennas are different; N and T are both integers, and T is a time offset.7.如权利要求6所述的装置,其特征在于,所述装置为基站,所述第二设备与所述第三设备为所述基站所服务的同一终端;其中,所述终端至少有两根天线;或者,7. The device according to claim 6, wherein the device is a base station, and the second device and the third device are the same terminal served by the base station; wherein, the terminal has at least two antenna; or,所述装置为基站,所述第二设备与所述第三设备分别为所述基站所服务的不同终端;或者,The apparatus is a base station, and the second device and the third device are respectively different terminals served by the base station; or,所述装置为终端,所述第二设备与所述第三设备为所述终端当前连接的基站。The apparatus is a terminal, and the second device and the third device are base stations currently connected to the terminal.8.如权利要求6或7所述的装置,其特征在于,所述装置还包括:8. The device according to claim 6 or 7, wherein the device further comprises:信道估计模块,用于根据在时隙N内接收到的所述第三设备发送的数据,获取信道估计;以及,根据所述信道估计,确定需要在时隙N+T向所述第三设备发送的数据。A channel estimation module, configured to acquire a channel estimate according to the data sent by the third device received in time slot N; and, according to the channel estimate, determine that the third device needs to send data to the third device in time slot N+T sent data.9.一种同时同频全双工系统中的数据传输装置,其特征在于,所述装置的每个发送通道的输出端设置一个转换开关,且所述装置的每个接收通道的输入端设置一个转换开关,其中,每个所述转换开关的另一端分别与所述装置的第一组天线中的一根天线和所述装置的第二组天线中的一根天线连接,所述装置通过控制每个所述转换开关进行如下传输:9. A data transmission device in a full-duplex system with the same frequency at the same time, characterized in that, the output end of each transmission path of the device is provided with a changeover switch, and the input end of each reception path of the device is set a diverter switch, wherein the other end of each diverter switch is respectively connected to one of the antennas of the first group of antennas of the device and one of the antennas of the second group of antennas of the device, and the device passes through Each of said transfer switches is controlled to transmit as follows:在时隙N内,通过第一组天线中的天线向至少一个第二设备发送数据,以及通过第二组天线中的天线接收至少一个第三设备发送的数据;In time slot N, send data to at least one second device through antennas in the first group of antennas, and receive data sent by at least one third device through antennas in the second group of antennas;在时隙N+T内,通过第一组天线中的同一根天线接收所述至少一个第二设备发送的数据,以及通过第二组天线中的同一根天线向所述至少一个第三设备发送数据;In time slot N+T, receive the data sent by the at least one second device through the same antenna in the first group of antennas, and send to the at least one third device through the same antenna in the second group of antennas data;其中,所述装置的所有天线分成两组,所述第一组天线和所述第二组天线所包含的天线不相同;N、T均为整数,且T为时间偏移量。Wherein, all the antennas of the device are divided into two groups, and the antennas included in the first group of antennas and the second group of antennas are different; N and T are both integers, and T is a time offset.10.如权利要求9所述的装置,其特征在于,所述装置为基站,所述第二设备与所述第三设备为所述基站所服务的同一终端;其中,所述终端至少有两根天线;或者,10. The device according to claim 9, wherein the device is a base station, and the second device and the third device are the same terminal served by the base station; wherein, the terminal has at least two antenna; or,所述装置为基站,所述第二设备与所述第三设备分别为所述基站所服务的不同终端;或者,The apparatus is a base station, and the second device and the third device are respectively different terminals served by the base station; or,所述装置为终端,所述第二设备与所述第三设备为所述终端当前连接的基站。The apparatus is a terminal, and the second device and the third device are base stations currently connected to the terminal.
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