WO2015100939A1

WO2015100939A1 - Method for realizing space division multiplexing, base station and terminal

Info

Publication number: WO2015100939A1
Application number: PCT/CN2014/079274
Authority: WO
Inventors: 鲁照华; 陈艺戬; 郭森宝; 郁光辉
Original assignee: 中兴通讯股份有限公司
Priority date: 2013-12-31
Filing date: 2014-06-05
Publication date: 2015-07-09
Also published as: CN104753573B; CN104753573A

Abstract

A method for realizing space division multiplexing, a base station and a terminal. The method comprises: the base station transmitting pilot signals of a class 1 antenna group according to a first transmission period; generating pilot signals of a class 2 antenna group according to received channel state feedback information of the class 1 antenna group; and transmitting the generated pilot signals of the class 2 antenna group according to a second transmission period, the second transmission period being smaller than the first transmission period. In the embodiments of the present invention, pilot signals are transmitted with the second transmission period smaller than the first transmission period, so that the pilot overhead in space division multiplexing is reduced. The system implementation complexity is lowered by means of virtualization.

Description

一种实现空分复用的方法、基站及终端技术领域 Method, base station and terminal for realizing space division multiplexing

本发明实施例涉及大规模天线阵列通信技术，尤指一种实现空分复用的方法、基站及终端。背景技术随着移动通信终端的不断发展，促进了无线通信的数据应用业务也不断增加，诸如云计算、视频通话、多媒体分享、社交等应用的开发应用，使无线通信网络用户呈现大规模增长，无线数据业务在短期内实现了***式的增长。按照研究统计，在未来 10年，无线数据业务仍然存在 500~1000倍的增长空间，这对无线通信***的容量提出了非常高的要求。 The embodiments of the present invention relate to a large-scale antenna array communication technology, and in particular, to a method, a base station, and a terminal for implementing space division multiplexing. BACKGROUND With the continuous development of mobile communication terminals, data application services that promote wireless communication are also increasing, and development applications such as cloud computing, video calling, multimedia sharing, and social networking have caused large-scale growth of wireless communication network users. Wireless data services have experienced explosive growth in the short term. According to research statistics, in the next 10 years, wireless data services still have 500 to 1000 times the growth space, which puts very high demands on the capacity of wireless communication systems.

进行无线网络容量提升的方法目前常用的有：（ 1 )增加频谱带宽；（ 2 ) 加强业务分流；（3 )提高网络密度；（4 )提升频谱效率。在这些方法中，基于多天线技术的提升频谱效率方法获得了非常多的关注。 At present, methods for improving the capacity of wireless networks are: (1) increasing spectrum bandwidth; (2) enhancing service offload; (3) increasing network density; and (4) improving spectrum efficiency. Among these methods, the method of improving spectral efficiency based on multi-antenna technology has received a lot of attention.

多天线技术从单一用户端的多输入输出（ SU-MIMO )演进到多用户端的多输入输出（MU-MIMO ) , 再发展为协作多点传输技术（CoMP ) , 发展思路是从提高单链路的稳定性和峰值流量到提高***整体流量。但是， CoMP 由于测量信道、数据交互等带来的资源开销，以及多路径功率的不平衡等问题，在实际应用中性能并不理想，很难达到预期的效果。 Multi-antenna technology evolved from single-user multi-input and output (SU-MIMO) to multi-user multi-input and output (MU-MIMO), and then developed into coordinated multi-point transmission (CoMP). The development idea is to improve single-link. Stability and peak flow to increase overall system flow. However, due to the resource overhead caused by measuring channel, data interaction, and the imbalance of multipath power, CoMP performance is not ideal in practical applications, and it is difficult to achieve the desired effect.

在这种背景之下，基于大规模天线阵列（LSAS ) 或者大规模 MIMO ( Massive MIMO ) 的通信技术被提出来，它是 MIMO技术的扩展和延伸，其基本特征就是在基站侧配置数量众多的天线阵列（从几十至几千），利用空分多址（SDMA )原理，同时服务于多个用户。由于大规模天线阵列带来的巨大阵列增益和干扰抑制增益，使得小区总的频谱效率和边缘用户的频谱效率得到了极大的提升。 Under this background, communication technologies based on large-scale antenna array (LSAS) or massive MIMO (mass MIMO) are proposed, which is an extension and extension of MIMO technology. The basic feature is that a large number of configurations are performed on the base station side. Antenna arrays (from tens to thousands) use the principle of space division multiple access (SDMA) to serve multiple users simultaneously. Due to the large array gain and interference suppression gain brought by the large-scale antenna array, the total spectrum efficiency of the cell and the spectral efficiency of the edge users are greatly improved.

虽然大规模天线阵列***使得小区的频谱效率和边缘用户的频谱效率得到了极大的提升，然而，在实际应用时，却存在导频开销大的问题。在时分双工***中，由于上下行链路存在互异性，可以通过基站发送的导频信号估计信道，所以导频开销的问题不是特别明显，但是在频分双工***或者上下行不存在互异性的时分双工***中（例如工作在特定高频段的***），由于上下行链路不存在互异性，下行导频开销与天线数成正比，而且终端需要向基站反馈下行信道状态信息，也会带来比较大的反馈开销，进而严重影响了大规模天线阵列***的性能。 Although the large-scale antenna array system has greatly improved the spectral efficiency of the cell and the spectral efficiency of the edge users, in practice, there is a problem of large pilot overhead. In a time division duplex system, since the uplink and downlink are mutually different, the pilot signal transmitted by the base station can be estimated. The channel overhead, so the problem of pilot overhead is not particularly obvious, but in a frequency division duplex system or a time division duplex system where there is no mutual difference between uplink and downlink (for example, a system operating in a specific high frequency band), because the uplink and downlink are not There is mutuality, the downlink pilot overhead is proportional to the number of antennas, and the terminal needs to feed back the downlink channel state information to the base station, which also brings a large feedback overhead, which seriously affects the performance of the large-scale antenna array system.

另外，按照已有技术，假设一大规模天线阵列通信***中基站包含 128 根物理天线，每个终端包含一根天线，在上下行信道不具有互异性的***中， ***至少需要提供 128个子载波来让终端用于进行信道估计，生成预编码矩阵 ₈ 产生的导频开销严重影响了***的性能，另外， ***中大量的天线，使终端预编码矩阵过于复杂。发明内容 In addition, according to the prior art, it is assumed that a base station in a large-scale antenna array communication system includes 128 physical antennas, and each terminal includes one antenna. In a system in which the uplink and downlink channels do not have mutual anisotropy, the system needs to provide at least 128 subcarriers. To allow the terminal to perform channel estimation, the pilot overhead generated by the precoding matrix ₈ seriously affects the performance of the system. In addition, a large number of antennas in the system make the terminal precoding matrix too complicated. Summary of the invention

为了解决上述技术问题，本发明实施例公开了一种实现空分复用的方法、基站及终端，能够降低大规模天线阵列的导频开销，同时降低预编码矩阵的复杂程度。 In order to solve the above technical problem, the embodiment of the present invention discloses a method, a base station, and a terminal for implementing space division multiplexing, which can reduce the pilot overhead of a large-scale antenna array and reduce the complexity of the precoding matrix.

为了达到本申请的目的，本发明实施例提供一种实现空分复用的方法，包括：基站按照第一发送周期发送第一类天线组的导频信号；根据接收到的第一类天线组信道状态反馈信息，生成第二类天线组的导频信号； In order to achieve the purpose of the present application, an embodiment of the present invention provides a method for implementing space division multiplexing, including: transmitting, by a base station, a pilot signal of a first type of antenna group according to a first transmission period; Channel state feedback information, generating pilot signals of the second type of antenna group;

按照第二发送周期，发送生成的第二类天线组的导频信号，其中第二发送周期小于第一发送周期。 And transmitting, according to the second sending period, the generated pilot signal of the second type of antenna group, wherein the second sending period is smaller than the first sending period.

可选地，所述方法还包括：所述基站接收第二类天线组信道状态反馈信息； Optionally, the method further includes: receiving, by the base station, channel state feedback information of the second type of antenna group;

根据接收到的第二类天线组信道状态反馈信息生成用于终端进行数据信道解调的第三类天线组的导频信号。可选地，所述第二类天线组的天线数目小于所述第一类天线组的天线数 A pilot signal of a third type of antenna group for performing data channel demodulation by the terminal is generated according to the received channel state feedback information of the second type of antenna group. Optionally, the number of antennas of the second type of antenna group is smaller than the number of antennas of the first type of antenna group

可选地，所述第一类天线组为实际配置的物理天线，或由实际配置的物理天线进行虚拟化后生成的逻辑天线；所述第二类天线组为：由所述第一类天线组的全部或者部分天线进行虚拟化生成的逻辑天线。 Optionally, the first type of antenna group is a physically configured physical antenna, or a logical antenna generated by being physically virtualized by a physically configured physical antenna; The second type of antenna group is: a logical antenna generated by virtualization of all or part of the antennas of the first type of antenna group.

可选地，所述第一类天线组信道状态反馈信息包含：接收所述第一类天线组的导频信号的终端与所述第一类天线组之间信道的高阶统计信息。 Optionally, the first type of antenna group channel state feedback information includes: high-order statistical information of a channel between a terminal that receives the pilot signal of the first type of antenna group and the first type of antenna group.

可选地，所述方法还包括：所述基站发送第一类天线组的导频信号相关信息。 Optionally, the method further includes: the base station transmitting pilot signal related information of the first type of antenna group.

可选地，所述第一类天线组导频信号相关信息包含：第一类天线组的天线数目信息、和 /或第一类天线组的导频图样信息、和 /或第一类天线组的导频发送资源位置、和 /或第一类天线组的导频发送周期、和 /或第一类天线组的导频序列信息。 Optionally, the first type of antenna group pilot signal related information includes: antenna number information of the first type of antenna group, and/or pilot pattern information of the first type of antenna group, and/or the first type of antenna group The pilot transmission resource location, and/or the pilot transmission period of the first type of antenna group, and/or the pilot sequence information of the first type of antenna group.

可选地，所述基站发送第二类天线组导频信号相关信息。 Optionally, the base station sends the second type antenna group pilot signal related information.

可选地，所述第二类天线组对应的导频信号相关信息包含：终端标识、和 /或终端组标识、和 /或第二类天线组的天线数目信息、和 /或第二类天线组的导频图样信息、和 /或第二类天线组的导频发送资源位置、和 /或第二类天线组的导频发送周期、和 /或第二类天线组的导频序列信息。 Optionally, the pilot signal related information corresponding to the second type of antenna group includes: a terminal identifier, and/or a terminal group identifier, and/or antenna number information of the second type antenna group, and/or a second type antenna The pilot pattern information of the group, and/or the pilot transmission resource location of the second type of antenna group, and/or the pilot transmission period of the second type of antenna group, and/or the pilot sequence information of the second type of antenna group.

可选地，所述发送第一类天线组的导频信号为：所述基站在不同的第一发送周期釆用相同或不同的天线发送所述第一类天线组的导频信号； Optionally, the transmitting, by the base station, the pilot signals of the first type of antenna group by using the same or different antennas in different first transmission periods;

所述发送第二类天线组的导频信号为：所述基站在不同的第二发送周期内釆用相同或不同的天线发送所述第二类天线组的导频信号。 The pilot signals for transmitting the second type of antenna group are: the base station transmitting pilot signals of the second type of antenna group by using the same or different antennas in different second transmission periods.

本发明实施例还提供一种实现空分复用的方法，包括： An embodiment of the present invention further provides a method for implementing space division multiplexing, including:

终端按照第一接收周期接收第一类天线组的导频信号，生成第一类天线组信道状态反馈信息并发送； Receiving, by the terminal, pilot signals of the first type of antenna group according to the first receiving period, generating channel state feedback information of the first type of antenna group, and transmitting the information;

按照第二接收周期接收第二类天线组的导频信号，生成第二类天线组信道状态反馈信息并发送；其中，第二接收周期小于第一接收周期。 Receiving a pilot signal of the second type of antenna group according to the second receiving period, generating channel state feedback information of the second type of antenna group and transmitting; wherein the second receiving period is smaller than the first receiving period.

可选地，所述方法还包括：所述终端接收第三类天线组的导频信号，根据接收到的第三类天线组的导频信号进行数据信道的解调。 Optionally, the method further includes: receiving, by the terminal, a pilot signal of a third type of antenna group, and performing demodulation of the data channel according to the received pilot signal of the third type of antenna group.

可选地，所述第二类天线组的天线数目小于所述第一类天线组的天线数可选地，所述第二类天线组为：由所述第一类天线组的全部或部分天线虚拟化生成的逻辑天线。 Optionally, the number of antennas of the second type of antenna group is smaller than the number of antennas of the first type of antenna group Optionally, the second type of antenna group is: a logical antenna generated by all or part of antenna virtualization of the first type of antenna group.

可选地，所述第一类天线组信道状态反馈信息包含：所述终端与第一类天线组之间信道的高阶统计信息。 Optionally, the channel state feedback information of the first type of antenna group includes: high-order statistical information of a channel between the terminal and the first type of antenna group.

可选地，所述方法还包括：所述终端接收第一类天线组导频信号的相关信息； Optionally, the method further includes: receiving, by the terminal, related information of a pilot signal of a first type of antenna group;

所述终端基于接收到的第一类天线组的导频信号相关信息接收所述第一类天线组导频信号。 The terminal receives the first type antenna group pilot signal based on the received pilot signal related information of the first type of antenna group.

可选地，所述方法还包括：所述终端接收第二类天线组导频信号相关信息； Optionally, the method further includes: receiving, by the terminal, information about pilot signals of a second type of antenna group;

所述终端基于接收到的第二类天线组的导频信号相关信息，接收所述第二类天线组导频信号。 The terminal receives the pilot signal of the second type of antenna group based on the received pilot signal related information of the second type of antenna group.

可选地，所述终端所在的终端侧包含有 N个终端；所述接收第一类天线组的导频信号包括： Optionally, the terminal side where the terminal is located includes N terminals, and the pilot signals for receiving the first type of antenna group include:

所述 N个终端中的 M个终端接收所述第一类天线组的导频信号；其中， M小于等于N。 The M terminals of the N terminals receive the pilot signals of the first type of antenna group; wherein, M is less than or equal to N.

可选地，所述方法还包括：所述 N个终端的全部或者部分，共享各自根据接收到的第一类天线组的导频信号分别生成的第一类天线组的信道状态信息。 Optionally, the method further includes: all or part of the N terminals sharing channel state information of the first type of antenna group respectively generated according to the received pilot signals of the first type of antenna group.

可选地，所述发送第一类天线组信道状态反馈信息包括：所述 M个终端中的 X个终端，使用相同的资源发送所述第一类天线组信道反馈信息；其中， X小于等于M。 Optionally, the sending the channel state feedback information of the first type of antenna group includes: the M terminals The X terminals in the same type use the same resource to send the channel feedback information of the first type of antenna group; wherein X is less than or equal to M.

可选地，所述第一类天线组信道反馈信息为：由所述 N个终端的全部或部分终端的第一类天线组信道状态信息生成的信息。 Optionally, the first type of antenna group channel feedback information is: information generated by channel state information of the first type of antenna group of all or part of the terminals of the N terminals.

可选地，所述 M个终端接收所述第一类天线组所对应的导频信号，该方法还包括：由其中 Q个终端接收其他剩余的 (M-Q)个终端的第一类天线组所对应的导频信号。 Optionally, the M terminals receive the pilot signals corresponding to the first type of antenna groups, and the method further includes: receiving, by the Q terminals, the first type of antenna groups of the remaining (MQ) terminals. Corresponding pilot signal.

可选地，所述方法还包括：所述终端将所述生成的第一类天线组的信道状态反馈信息发送给所述终端所在终端侧中的其他终端。 Optionally, the method further includes: sending, by the terminal, the channel state feedback information of the generated first type of antenna group to other terminals in the terminal side where the terminal is located.

可选地，所述方法还包括：所述终端接收所述第一类天线组的导频信号，生成所述第一类天线组的信道状态信息； Optionally, the method further includes: receiving, by the terminal, a pilot signal of the first type of antenna group, and generating channel state information of the first type of antenna group;

所述终端接收其自身所在终端侧中的其他终端的生成的第一类天线组的信道状态信息。 The terminal receives channel state information of the generated first type of antenna group of other terminals in the terminal side on which it is located.

本发明实施例又一种实现空分复用的基站，包括：发送模块、接收模块；其中， Another embodiment of the present invention provides a base station for performing space division multiplexing, including: a sending module and a receiving module;

发送模块，设置为按照第一发送周期发送第一类天线组的导频信号；按照第二发送周期，发送生成的第二类天线组的导频信号，其中第二发送周期小于第一发送周期； The sending module is configured to send the pilot signal of the first type of antenna group according to the first sending period, and send the generated pilot signal of the second type of antenna group according to the second sending period, where the second sending period is smaller than the first sending period ;

接收模块，设置为接收来自终端的接收第一类天线组的导频信号的第一类天线组信道状态反馈信息。 The receiving module is configured to receive channel state feedback information of the first type of antenna group from the terminal that receives the pilot signal of the first type of antenna group.

可选地，所述基站还包括导频信号模块，设置为根据所述第一类天线组信道状态反馈信息，生成第二类天线组的导频信号，输出给发送模块。 Optionally, the base station further includes a pilot signal module, configured to generate a pilot signal of the second type of antenna group according to the channel state feedback information of the first type of antenna group, and output the signal to the sending module.

可选地，所述基站还包括导频信号相关信息模块，设置为生成第一类天线组的导频信号相关信息，生成第二类天线组的导频信号相关信息，并发送给终端。 Optionally, the base station further includes a pilot signal related information module, configured to generate pilot signal related information of the first type of antenna group, generate pilot signal related information of the second type antenna group, and send the information to the terminal.

可选地，所述接收模块，还设置为接收来自终端发送的接收第二类天线组的导频信号的第二类天线信道状态反馈信息； Optionally, the receiving module is further configured to receive, according to the second type of antenna channel state feedback information that is sent by the terminal and receive the pilot signal of the second type of antenna group;

所述导频信号模块，还设置为根据所述第二类天线组的信道状态反馈信息，生成第三类天线组的导频信号，输出给发送模块。 The pilot signal module is further configured to provide a channel state feedback signal according to the second type of antenna group The pilot signal of the third type of antenna group is generated and output to the transmitting module.

可选地，所述第一类天线组的天线数目小于第二类天线组的天线数目。可选地，所述基站还包括虚拟化模块，用于按照所述发送模块中的天线将第一类天线组的全部或者部分天线进行虚拟化，以生成天线数目小于第一类天线组的至少一个第二类天线组，并通知给发送模块和接收模块。本发明实施例再一种实现空分复用的终端，包括：发送单元、接收单元；其中， Optionally, the number of antennas of the first type of antenna group is smaller than the number of antennas of the second type of antenna group. Optionally, the base station further includes a virtualization module, configured to virtualize all or part of antennas of the first type of antenna group according to an antenna in the sending module, to generate at least an antenna number smaller than the first type of antenna group. A second type of antenna group is notified to the transmitting module and the receiving module. A terminal for implementing space division multiplexing according to an embodiment of the present invention includes: a sending unit and a receiving unit;

接收单元，设置为按照第一接收周期接收第一类天线组的导频信号；按照第二接收周期接收第二类天线组的导频信号，其中，第二接收周期小于第一接收周期； The receiving unit is configured to receive the pilot signal of the first type of antenna group according to the first receiving period, and receive the pilot signal of the second type of antenna group according to the second receiving period, where the second receiving period is less than the first receiving period;

发送单元，设置为发送第一类天线组的信道状态反馈信息。 The sending unit is configured to send channel state feedback information of the first type of antenna group.

可选地，所述发送单元还设置为；发送第二类天线组的信道状态反馈信息； Optionally, the sending unit is further configured to: send channel state feedback information of the second type of antenna group;

所述接收单元还设置为：接收来自基站生成第三类天线组的导频信号；所述终端还包括数据解调单元，设置为根据来自接收单元的第三类天线组的导频信号，进行数据信道的解调。 The receiving unit is further configured to: receive a pilot signal generated by the base station to generate a third type of antenna group; the terminal further includes a data demodulating unit, configured to perform, according to a pilot signal of the third type antenna group from the receiving unit, Demodulation of the data channel.

可选地，所述第二类天线组的天线数目小于第一类天线组。 Optionally, the number of antennas of the second type of antenna group is smaller than that of the first type of antenna group.

可选地，所述第二类天线组的每根天线，由第一类天线组的全部或部分天线虚拟化生成。 Optionally, each antenna of the second type of antenna group is generated by all or part of an antenna of the first type of antenna group.

可选地，所述终端还包括信道状态获取单元，设置为获得信道状态信息，并生成所述第二类天线组信道状态反馈信息。 Optionally, the terminal further includes a channel state acquiring unit, configured to obtain channel state information, and generate channel state feedback information of the second type of antenna group.

可选地，所述接收单元具体设置为：接收来自基站的第一类天线组导频信号相关信息；基于第一类天线组导频信号相关信息接收所述第一类天线组导频信号； Optionally, the receiving unit is specifically configured to: receive pilot information related information of the first type of antenna group from the base station; and receive the pilot signal of the first type of antenna group based on information about pilot signals of the first type of antenna group;

接收来自基站的第二类天线组导频信号相关信息，基于第二类天线组导频信号相关信息接收第二类天线组导频信号。 Receiving a second type of antenna group pilot signal related information from the base station, and receiving a second type antenna group pilot signal based on the second type antenna group pilot signal related information.

本发明实施例包括：基站按照第一发送周期发送第一类天线组的导频信号；根据接收到的第一类天线组信道状态反馈信息，生成第二类天线组的导频信号；按照第二发送周期，发送生成的第二类天线组的导频信号，其中第二发送周期小于第一发送周期。本发明实施例通过釆用第二发送周期小于第一发送周期，进行导频信号的发送，实现了降低空分复用的导频开销。通过虚拟化方法，降低了***的实现复杂度。附图概述 The embodiment of the invention includes: the base station transmitting the pilot information of the first type of antenna group according to the first sending period Generating a pilot signal of the second type of antenna group according to the received channel state feedback information of the first type of antenna group; transmitting the generated pilot signal of the second type of antenna group according to the second transmission period, where the second transmission The period is less than the first transmission period. In the embodiment of the present invention, by using the second transmission period to be smaller than the first transmission period, the pilot signal is transmitted, and the pilot overhead of reducing the space division multiplexing is implemented. Through the virtualization method, the implementation complexity of the system is reduced. BRIEF abstract

此处所说明的附图用来提供对本发明的进一步理解，构成本申请的一部分，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中： The drawings are intended to provide a further understanding of the invention, and are intended to be illustrative of the invention. In the drawing:

图 1为本发明实施例基站侧实现空分复用的方法的流程图； 1 is a flowchart of a method for implementing space division multiplexing on a base station side according to an embodiment of the present invention;

图 2为本发明实施例终端侧实现空分复用的方法的流程图； 2 is a flowchart of a method for implementing space division multiplexing on a terminal side according to an embodiment of the present invention;

图 3为本发明实施例实现空分复用的***结构框图； 3 is a structural block diagram of a system for implementing space division multiplexing according to an embodiment of the present invention;

图 4为本发明实施例实现空分复用的基站结构框图； 4 is a structural block diagram of a base station implementing space division multiplexing according to an embodiment of the present invention;

图 5为本发明实施例实现空分复用的终端结构框图； FIG. 5 is a structural block diagram of a terminal for implementing space division multiplexing according to an embodiment of the present invention; FIG.

图 6为本发明实施例基站侧实现空分复用的实施例 1的流程图；图 7为本发明实施例基站侧实现空分复用的实施例 2的流程图；图 8为本发明实施例终端侧实现空分复用的实施例 6的流程图；图 9为本发明实施例终端侧实现空分复用的实施例 7的流程图。本发明的较佳实施方式 FIG. 6 is a flowchart of Embodiment 1 of implementing spatial division multiplexing on a base station side according to an embodiment of the present invention; FIG. 7 is a flowchart of Embodiment 2 of implementing baseband multiplexing on a base station side according to an embodiment of the present invention; A flowchart of Embodiment 6 in which the terminal side implements space division multiplexing; FIG. 9 is a flowchart of Embodiment 7 of implementing the space division multiplexing on the terminal side according to the embodiment of the present invention. Preferred embodiment of the invention

需要说明，本发明实施例中， "天线" 也可以理解为 "端口" ，每根天线可以是由一个或多个阵子构成的，例如发送相同参考信号（导频信号）阵子或物理天线，也可以是多个物理天线通过虚拟化技术形成的逻辑天线。相同的一组天线也可以使用不同的预编码虚拟化为多个不同的天线端口。 It should be noted that, in the embodiment of the present invention, an "antenna" may also be understood as a "port", and each antenna may be composed of one or more frames, for example, transmitting the same reference signal (pilot signal) or a physical antenna. It may be a logical antenna formed by multiple physical antennas through virtualization technology. The same set of antennas can also be virtualized into multiple different antenna ports using different precoding.

图 1为本发明实施例基站侧实现空分复用的方法的流程图，如图 1所示，包括： FIG. 1 is a flowchart of a method for implementing space division multiplexing on a base station side according to an embodiment of the present invention. As shown in FIG. 1 , the method includes:

步骤 100: 基站按照第一发送周期发送第一类天线组的导频信号。本步骤中，发送第一类天线组的导频信号为：基站在不同的第一发送周期釆用相同或不同的天线发送第一类天线组的导频信号。 Step 100: The base station sends a pilot signal of the first type of antenna group according to the first sending period. In this step, the pilot signals of the first type of antenna group are sent by the base station: the base station transmits the pilot signals of the first type of antenna group with the same or different antennas in different first transmission periods.

本步骤还包括：基站生成第一类天线组的导频信号相关信息，发送第一类天线组的导频信号相关信息到终端。需要说明的是，导频信号和导频信号相关信息在时间上可以一起发送，也可以不是同时发送。这里，生成第一类天线组的导频信号相关信息属于本领域技术人员的惯用技术手段，这里不再赘述。本发明实施例方法还包括：终端基于第一类天线组导频信号相关信息接收第一类天线组导频信号。 The step further includes: the base station generating pilot signal related information of the first type of antenna group, and transmitting the pilot signal related information of the first type of antenna group to the terminal. It should be noted that the pilot signal and the pilot signal related information may be sent together in time or not simultaneously. Here, the generation of the pilot signal related information of the first type of antenna group belongs to the conventional technical means of those skilled in the art, and details are not described herein again. The method of the embodiment of the present invention further includes: the terminal receiving the first type antenna group pilot signal based on the first type antenna group pilot signal related information.

进一步地，第一类天线组导频信号相关信息包含：第一类天线组的天线数目信息、和 /或第一类天线组的导频图样信息、和 /或第一类天线组的导频发送资源位置、和 /或第一类天线组的导频发送周期、和 /或第一类天线组的导频序列信息。 Further, the first type of antenna group pilot signal related information includes: antenna number information of the first type of antenna group, and/or pilot pattern information of the first type of antenna group, and/or pilot of the first type of antenna group The transmission resource location, and/or the pilot transmission period of the first type of antenna group, and/or the pilot sequence information of the first type of antenna group.

需要说明的是，本发明实施例第一类天线组为：实际配置的物理天线、或者是由实际配置的物理天线进行虚拟化后生成的逻辑天线。且本发明实施例方法中，第一类天线组的导频信号发送资源位置可以为：从一组预定义的图样中进行选择、或者根据随机数生成、或者由***预设。 It should be noted that, in the embodiment of the present invention, the antenna group of the first type is: a physical antenna that is actually configured, or a logical antenna that is generated after being virtualized by a physically configured physical antenna. In the method of the embodiment of the present invention, the pilot signal sending resource location of the first type of antenna group may be: selecting from a set of predefined patterns, or generating according to a random number, or preset by the system.

步骤 101 : 基站根据接收到的第一类天线组信道状态反馈信息，生成第二类天线组的导频信号。即基于终端返回的接收第一类天线组的导频信号的第一类天线组信道状态反馈信息，生成第二类天线组的导频信号。 Step 101: The base station generates a pilot signal of the second type of antenna group according to the received channel state feedback information of the first type of antenna group. That is, the pilot signal of the second type of antenna group is generated based on the channel state feedback information of the first type of antenna group that receives the pilot signal of the first type of antenna group returned by the terminal.

本步骤中，第一类天线组信道状态反馈信息包含：终端与第一类天线组之间信道的高阶统计信息。 In this step, the channel state feedback information of the first type of antenna group includes: high-order statistical information of a channel between the terminal and the first type of antenna group.

本步骤中，如何生成导频信号属于本领域技术人员的惯用技术手段，并不用于限定本发明实施例的保护范围，这里不再赘述。 In this step, how to generate the pilot signal is a common technical means for those skilled in the art, and is not used to limit the protection scope of the embodiment of the present invention, and details are not described herein again.

步骤 102: 基站按照第二发送周期，发送生成的第二类天线组的导频信号，其中第二发送周期小于第一发送周期。 Step 102: The base station sends the generated pilot signal of the second type of antenna group according to the second sending period, where the second sending period is smaller than the first sending period.

本步骤中，基站按照周期小于第一发送周期的第二发送周期，发送第二类天线组的导频信号到终端。 In this step, the base station sends the pilot signal of the second type antenna group to the terminal according to the second transmission period whose period is smaller than the first transmission period.

同样，本步骤还包括：基站生成第二类天线组的导频信号相关信息，发送第二类天线组的导频信号相关信息到终端。需要说明的是，导频信号和导频信号相关信息在时间上可以一起发送，也可以不是同时发送。这里，生成第二类天线组的导频信号相关信息属于本领域技术人员的惯用技术手段，这里不再赘述。本发明实施例方法还包括：终端基于第二类天线组导频信号相关信息接收第二类天线组导频信号。 Similarly, the step further includes: generating, by the base station, pilot signal related information of the second type of antenna group, Sending pilot signal related information of the second type of antenna group to the terminal. It should be noted that the pilot signal and the pilot signal related information may be sent together in time or not simultaneously. Here, the generation of the pilot signal related information of the second type of antenna group belongs to the conventional technical means of those skilled in the art, and details are not described herein again. The method of the embodiment of the present invention further includes: the terminal receiving the second type antenna group pilot signal based on the second type antenna group pilot signal related information.

进一步地，第二类天线组对应的导频信号相关信息包含：终端标识、和 / 或终端组标识、和 /或第二类天线组的天线数目信息、和 /或第二类天线组的导频图样信息、和 /或第二类天线组的导频发送资源位置、和 /或第二类天线组的导频发送周期、和 /或第二类天线组的导频序列信息。 Further, the pilot signal related information corresponding to the second type of antenna group includes: a terminal identifier, and/or a terminal group identifier, and/or antenna number information of the second type antenna group, and/or a guide of the second type antenna group The frequency pattern information, and/or the pilot transmission resource location of the second type of antenna group, and/or the pilot transmission period of the second type of antenna group, and/or the pilot sequence information of the second type of antenna group.

本步骤中，发送第二类天线组的导频信号为：基站在不同的第二发送周期内釆用相同或不同的天线发送第二类天线组的导频信号。 In this step, the pilot signals of the second type of antenna group are sent by the base station: the base station transmits the pilot signals of the second type of antenna group by using the same or different antennas in different second transmission periods.

需要说明的是，本发明实施例第二类天线组的导频信号发送资源位置可以为：从一组预定义的图样中选择、或根据随机数生成。 It should be noted that the location of the pilot signal transmission resource of the antenna group of the second type in the embodiment of the present invention may be: selected from a set of predefined patterns, or generated according to a random number.

需要说明的是，第二发送周期结合实际应用场景进行设计，根据导频开销，如果导频开销影响到大规模天线阵列***的性能时，通过加大第二类天线组导频信号发送密度，以降低第二发送周期时长，从而缩短第二发送周期，达到降低导频开销的目的，该部分为本领域技术人员的惯用技术手段，在此不再赘述。 It should be noted that the second transmission period is designed according to the actual application scenario. According to the pilot overhead, if the pilot overhead affects the performance of the large-scale antenna array system, by increasing the transmission density of the pilot signal of the second antenna group, The second transmission period is shortened, so that the second transmission period is shortened, and the pilot overhead is reduced. This part is a conventional technical means for those skilled in the art, and details are not described herein again.

在发送第二类天线组的导频信号到终端之后，本发明实施例方法还包括：基站基于终端返回的接收第二类天线组的导频信号的第二类天线组信道状态反馈信息，生成第三类天线组的导频信号，以提供给终端进行数据信道解调。 After the method of transmitting the pilot signal of the second type of antenna group to the terminal, the method of the embodiment of the present invention further includes: generating, by the base station, channel state feedback information of the second type of antenna group that receives the pilot signal of the second type of antenna group returned by the terminal, The pilot signals of the third type of antenna group are provided to the terminal for data channel demodulation.

需要说明的是，本发明实施例方法第二类天线组信道状态反馈信息包含：预编码矩阵信息、和 /或信道质量信息、和 /或信道秩信息、和 /或第二类天线组的相关信息。 It should be noted that the channel state feedback information of the second type of antenna group in the method of the embodiment of the present invention includes: precoding matrix information, and/or channel quality information, and/or channel rank information, and/or correlation of the second type antenna group. information.

第三类天线组的导频信号的发送资源位置可以为：从一组预定义的图样中选择、或根据随机数生成。 The transmission resource location of the pilot signals of the third type of antenna group may be: selected from a set of predefined patterns, or generated from random numbers.

本发明实施例方法还包括：第二类天线组的天线数目小于第一类天线组的天线数目；进一步地，第二类天线组为：由第一类天线组的全部或者部分天线进行虚拟化生成的天线构成。 The method of the embodiment of the present invention further includes: the number of antennas of the second type of antenna group is smaller than the number of antennas of the first type of antenna group; Further, the second type of antenna group is: an antenna formed by virtualizing all or part of the antennas of the first type of antenna group.

需要说明的是，通过本发明实施例方法容易得出，通过第二类天线组的天线数目小于或等于第三类天线组的天线数目。第三类天线组为：由第二类天线组的全部或者部分天线进行虚拟化生成天线构成。另外第二类天线组的天线数目小于第一类天线组数目，与发送导频信号的第一发送周期和第二发送周期存在相同的变化趋势。即，当发送周期时长缩短，则为了达到本发明实施例的目的，一般的天线组的天线数目也会相应减少。 It should be noted that the method of the embodiment of the present invention easily finds that the number of antennas passing through the second type of antenna group is less than or equal to the number of antennas of the third type of antenna group. The third type of antenna group is: The antenna is formed by virtualizing all or part of the antennas of the second type of antenna group. In addition, the number of antennas of the second type of antenna group is smaller than the number of antenna groups of the first type, and the same trend is the same as the first transmission period and the second transmission period of transmitting the pilot signal. That is, when the transmission period duration is shortened, in order to achieve the object of the embodiment of the present invention, the number of antennas of a general antenna group is also reduced accordingly.

以上步骤中，根据随机数生成时，随机数与***参数有关。其中， *** 参数包含：小区标识，和 /或帧标识，和 /或子帧标识，和 /或***带宽。 In the above steps, when generating according to a random number, the random number is related to the system parameter. The system parameters include: a cell identifier, and/or a frame identifier, and/or a subframe identifier, and/or a system bandwidth.

终端侧包含有 N个终端，本发明实施例方法还包括：由 N个终端中的 M 个终端接收第一类天线组的导频信号；其中， M小于等于N。 The terminal side includes N terminals, and the method of the embodiment of the present invention further includes: receiving, by the M terminals of the N terminals, pilot signals of the first type of antenna group; wherein, M is less than or equal to N.

本发明实施例方法还包括：由 N个终端的全部或者部分，共享各自的第一类天线组的信道状态信息。 The method of the embodiment of the present invention further includes: sharing channel state information of the respective first antenna group by all or part of the N terminals.

进一步地，本发明实施例方法还包括：由 M个终端中的 X个终端使用相同的资源发送第一类天线组导频信号的第一类天线组信道反馈信息；其中， X小于等于M。 Further, the method of the embodiment of the present invention further includes: transmitting, by the X terminals of the M terminals, channel feedback information of the first type of antenna group of the first type of antenna group pilot signals by using the same resource; wherein, X is less than or equal to M.

进一步地，第一类天线组信道反馈信息为：由 N个终端的全部或部分终端的第一类天线组信道状态信息生成的信息。 Further, the first type of antenna group channel feedback information is: information generated by channel state information of the first type of antenna group of all or part of the terminals of the N terminals.

M个终端接收第一类天线组所对应的导频信号，本发明实施例方法还包括：其中 Q个终端接收其他剩余的 (M-Q)个终端的第一类天线组所对应的导频信号。 The M terminals receive the pilot signals corresponding to the first type of antenna groups. The method of the embodiment of the present invention further includes: wherein the Q terminals receive the pilot signals corresponding to the first type of antenna groups of the other remaining (M-Q) terminals.

终端接收第一类天线组的导频信号，基于导频信号获取第一类天线组的信道状态信息，本发明实施例方法还包括，终端接收其他终端的第一类天线组的信道状态信息。 The terminal receives the pilot signal of the first type of antenna group, and obtains the channel state information of the first type of antenna group based on the pilot signal. The method of the embodiment of the present invention further includes: the terminal receiving the channel state information of the first type of antenna group of the other terminal.

图 2为本发明实施例终端侧实现空分复用的方法的流程图，如图 2所示，包括： 2 is a flowchart of a method for implementing space division multiplexing on a terminal side according to an embodiment of the present invention. As shown in FIG. 2, the method includes:

步骤 200: 终端按照第一接收周期接收第一类天线组的导频信号，并向基站返回第一类天线组信道状态反馈信息。 Step 200: The terminal receives the pilot signal of the first type of antenna group according to the first receiving period, and The base station returns channel state feedback information of the first type of antenna group.

第一类天线组信道状态反馈信息为：由 N个终端的全部或部分终端的第一类天线组信道状态信息生成的信息。这里 N个终端，为终端侧的所有终端的个数，根据实际情况有相应的取值。 The channel state feedback information of the first type of antenna group is: information generated by channel state information of the first type of antenna group of all or part of the terminals of the N terminals. Here, N terminals are the number of all terminals on the terminal side, and have corresponding values according to actual conditions.

步骤 201 : 按照周期小于第一接收周期的第二接收周期，接收基站生成的第二类天线组的导频信号，并向基站返回第二类天线组信道状态反馈信息。 Step 201: Receive a pilot signal of the second type of antenna group generated by the base station according to a second receiving period whose period is less than the first receiving period, and return channel state feedback information of the second type of antenna group to the base station.

需要说明的是，本发明实施例方法中，第二类天线组信道状态反馈信息为：终端接收基站发送的第二类天线组导频信号时，根据获得的信道状态信息生成第二类天线组信道状态反馈信息。 It should be noted that, in the method of the embodiment of the present invention, the channel state feedback information of the second type of antenna group is: when the terminal receives the second type antenna group pilot signal sent by the base station, and generates the second type antenna group according to the obtained channel state information. Channel status feedback information.

第二类天线组信道状态反馈信息包含：预编码矩阵信息、和 /或信道质量信息、和 /或信道秩信息、和 /或第二类天线组的相关信息。 The second type of antenna group channel state feedback information includes: precoding matrix information, and/or channel quality information, and/or channel rank information, and/or related information of the second type of antenna group.

发送第二类天线组的信道状态反馈信息到基站后，本发明实施例方法还包括：终端接收基站生成第三类天线组的导频信号，并根据第三类天线组的导频信号进行数据信道的解调。 After the channel state feedback information of the second type of antenna group is sent to the base station, the method of the embodiment of the present invention further includes: the terminal receiving the pilot signal generated by the base station to generate the third type antenna group, and performing data according to the pilot signal of the third type antenna group. Demodulation of the channel.

第三类天线组的导频信号发送资源位置可以为：从一组预定义的图样中选择、或根据随机数生成。 The pilot signal transmission resource location of the third type of antenna group can be: selected from a set of predefined patterns, or generated from random numbers.

本发明实施例方法还包括：第二类天线组的天线数目小于第一类天线组。可选地，第二类天线组的每根天线为：由第一类天线组的全部或部分天线虚拟化生成。 The method of the embodiment of the present invention further includes: the number of antennas of the second type of antenna group is smaller than that of the first type of antenna group. Optionally, each antenna of the second type of antenna group is: generated by all or part of the antenna virtualization of the first type of antenna group.

需要说明的是，通过本发明实施例方法容易看出，第三类天线组的天线数目与第二类天线组的天线数目关系及处理方法，第三类天线组的天线数目小于或等于第二类天线组。第三类天线组的每根天线，由第二类天线组的全部或部分天线虚拟化生成。 It should be noted that, by using the method of the embodiment of the present invention, the relationship between the number of antennas of the third type of antenna group and the number of antennas of the second type of antenna group and the processing method are as follows. The number of antennas of the third type of antenna group is less than or equal to the second. Class antenna group. Each antenna of the third type of antenna group is virtualized by all or part of the antennas of the second type of antenna group.

终端接收第一类天线组导频信号的相关信息，本发明实施例方法还包括：基于第一类天线组的导频信号相关信息接收第一类天线组导频信号。 The terminal receives the information about the first type of antenna group pilot signals, and the method of the embodiment of the present invention further includes: receiving the first type of antenna group pilot signals based on the pilot signal related information of the first type of antenna group.

可选地，第一类天线组导频信号相关信息包含：第一类天线组的天线数目信息、和 /或第一类天线组的导频图样信息、和 /或第一类天线组的导频发送资源位置、和 /或第一类天线组的导频发送周期、和 /或第一类天线组的导频序列信息。 Optionally, the pilot information related information of the first type of antenna group includes: the number of antennas of the first type of antenna group Head information, and/or pilot pattern information of the first type of antenna group, and/or pilot transmission resource locations of the first type of antenna group, and/or pilot transmission periods of the first type of antenna group, and/or Pilot sequence information for a class of antenna groups.

需要说明的是，本发明实施例方法中第一类天线组的导频发送资源位置为：从一组预定义的图样中进行选择、或根据随机数生成、或由***预设。 It should be noted that, in the method of the embodiment of the present invention, the pilot transmission resource location of the first type of antenna group is: selecting from a set of predefined patterns, or generating according to a random number, or preset by the system.

终端接收第二类天线组导频信号的相关信息，本发明实施例方法还包括：基于第二类天线组的导频信号相关信息接收第二类天线组导频信号。 The terminal receives the information about the second type of antenna group pilot signals, and the method of the embodiment of the present invention further includes: receiving the second type antenna group pilot signal based on the pilot signal related information of the second type of antenna group.

第二类天线组对应的导频信号相关信息包含：终端标识、和 /或终端组标识、和 /或第二类天线组的天线数目信息、和 /或第二类天线组的导频图样信息、和 /或第二类天线组的导频发送资源位置、和 /或第二类天线组的导频发送周期、和 /或第二类天线组的导频序列信息。 The pilot signal related information corresponding to the second type of antenna group includes: a terminal identifier, and/or a terminal group identifier, and/or antenna number information of the second type antenna group, and/or pilot pattern information of the second type antenna group. And/or a pilot transmission resource location of the second type of antenna group, and/or a pilot transmission period of the second type of antenna group, and/or pilot sequence information of the second type of antenna group.

需要说明的是，本发明实施例方法第二类天线组的导频发送资源位置可以为：从一组预定义的图样中选择、或根据随机数生成。 It should be noted that the location of the pilot transmission resource of the second type of antenna group in the method of the embodiment of the present invention may be: selecting from a set of predefined patterns, or generating according to a random number.

上述导频发送资源位置根据随机数生成中的随机数与***参数有关；系统参数包含：小区标识，和 /或帧标识，和 /或子帧标识，和 /或***带宽。 The pilot transmission resource location is related to system parameters according to the random number in the random number generation; the system parameters include: a cell identifier, and/or a frame identifier, and/or a subframe identifier, and/or a system bandwidth.

终端侧包含有 N个终端，本发明实施例方法还包括： N个终端中的 M个终端接收第一类天线组的导频信号；其中， M小于等于N。 The terminal side includes N terminals. The method of the embodiment of the present invention further includes: M terminals of the N terminals receive the pilot signals of the first type of antenna group; wherein, M is less than or equal to N.

本发明实施例方法还包括：由所述 N个终端的全部或者部分，共享各自的第一类天线组的信道状态信息。 The method of the embodiment of the present invention further includes: sharing, by all or part of the N terminals, channel state information of the respective first antenna group.

可选地，由所述 M个终端中的 X个终端通过使用相同的资源发送第一类天线组导频信号的第一类天线组信道反馈信息；其中， X小于等于M。 Optionally, the first type of antenna group channel feedback information of the first type of antenna group pilot signal is sent by the X terminals of the M terminals by using the same resource; where X is less than or equal to M.

可选地，第一类天线组的信道反馈信息为：由 N个终端的全部或部分终端的第一类天线组信道状态信息生成的信息。 Optionally, the channel feedback information of the first type of antenna group is: information generated by channel state information of the first type of antenna group of all or part of the terminals of the N terminals.

M个终端接收第一类天线组所对应的导频信号，本发明实施例方法还包括：由其中 Q个终端接收其他剩余的 (M-Q)个终端的第一类天线组所对应的导频信号。 The M terminals receive the pilot signals corresponding to the first type of antenna groups, and the method of the embodiment of the present invention further includes: receiving, by the Q terminals, pilot signals corresponding to the first type of antenna groups of other remaining (MQ) terminals. .

终端接收第一类天线组的导频信号，生成第一类天线组的信道状态信息，本发明实施例方法还包括，终端接收其他终端的第一类天线组的信道状态信息。 The terminal receives the pilot signals of the first type of antenna group, and generates the channel state information of the first type of antenna group. The method of the embodiment of the present invention further includes: the terminal receiving the channel state information of the first type of antenna group of the other terminal Interest.

图 3为本发明实施例实现空分复用的***结构框图，如图 3所示，包括：一个基站和若干终端；其中， FIG. 3 is a structural block diagram of a system for implementing space division multiplexing according to an embodiment of the present invention. As shown in FIG. 3, the method includes: a base station and a plurality of terminals;

基站，设置为按照第一发送周期发送第一类天线组的导频信号；根据第一类天线组信道状态反馈信息生成第二类天线组的导频信号；按照周期小于第一发送周期的第二发送周期，发送第二类天线组的导频信号。 a base station, configured to send a pilot signal of the first type of antenna group according to the first transmission period; and generate a pilot signal of the second type of antenna group according to the channel state feedback information of the first type of antenna group; Two transmission periods, transmitting pilot signals of the second type of antenna group.

发送第一类天线组的导频信号包括：基站釆用相同或不同的天线发送第一类天线组对应的导频信号。 Transmitting the pilot signals of the first type of antenna group includes: the base station transmitting the pilot signals corresponding to the first type of antenna groups by using the same or different antennas.

发送第二类天线组的导频信号包括：基站釆用相同或不同的天线发送第二类天线组对应的导频信号。 Transmitting the pilot signals of the second type of antenna group includes: the base station transmitting the pilot signals corresponding to the second type of antenna groups by using the same or different antennas.

第一类天线组信道状态反馈信息包含：终端与第一类天线组之间信道的高阶统计信息。 The channel state feedback information of the first type of antenna group includes: high-order statistical information of a channel between the terminal and the first type of antenna group.

终端，设置为接收第一类天线组的导频信号，并向基站返回第一类天线组信道状态反馈信息；接收第二类天线组的导频信号。 The terminal is configured to receive the pilot signal of the first type of antenna group, and return the channel state feedback information of the first type of antenna group to the base station; and receive the pilot signal of the second type of antenna group.

基站，还设置为接收来自终端的第二类天线组信道状态反馈信息，根据第二类天线组的信道状态反馈信息生成第三类天线组的导频信号。 The base station is further configured to receive channel state feedback information of the second type of antenna group from the terminal, and generate pilot signals of the third type of antenna group according to channel state feedback information of the second type of antenna group.

终端，还设置接收第三类天线组的导频信号，并根据第三类天线组的导频信号进行数据信道的解调。 The terminal further sets a pilot signal for receiving the third type of antenna group, and performs demodulation of the data channel according to the pilot signal of the third type of antenna group.

需要说明的是，第三类天线组的导频信号发送资源位置可以为：从一组预定义的图样中选择、或根据随机数生成。 It should be noted that the pilot signal transmission resource location of the third type of antenna group may be: selected from a set of predefined patterns, or generated according to a random number.

可选地，第二类天线组的天线数目小于第一类天线组的天线数目。 Optionally, the number of antennas of the second type of antenna group is smaller than the number of antennas of the first type of antenna group.

第一类天线组为：实际配置的物理天线、或由实际配置的物理天线进行虚拟化后生成的逻辑天线。 The first type of antenna group is: a physical antenna that is actually configured, or a logical antenna that is generated after being virtualized by a physically configured physical antenna.

第二类天线组为：将第一类天线组的全部或者部分天线进行虚拟化生成的天线构成。需要说明的是，第三类天线组也可以按照第二类天线组的方法，进行设定和生成，具体的第二类天线组的天线数目小于或等于所述第三类天线组的天线数目。第三类天线组为：将第二类天线组的全部或者部分天线进行虚拟化生成的第三类天线组。 The second type of antenna group is: an antenna formed by virtualizing all or part of the antennas of the first type of antenna group. It should be noted that the third type of antenna group may also be set and generated according to the method of the second type of antenna group, and the specific number of antennas of the second type of antenna group is less than or equal to the number of antennas of the third type of antenna group. . The third type of antenna group is: a third type of antenna group generated by virtualizing all or part of the antennas of the second type of antenna group.

基站，还设置为发送第一类天线组导频信号相关信息到终端； The base station is further configured to send the pilot information related information of the first type of antenna group to the terminal;

终端，还设置为基于第一类天线组导频信号相关信息接收第一类天线组导频信号。 The terminal is further configured to receive the pilot signal of the first type of antenna group based on the pilot signal related information of the first type of antenna group.

可选地，第一类天线组导频信号相关信息包含：第一类天线组的天线数目信息、和 /或第一类天线组的导频图样信息、和 /或第一类天线组的导频发送资源位置、和 /或第一类天线组的导频发送周期、和 /或第一类天线组的导频序列信息。 Optionally, the first type of antenna group pilot signal related information includes: antenna number information of the first type of antenna group, and/or pilot pattern information of the first type of antenna group, and/or a guide of the first type of antenna group The frequency transmission resource location, and/or the pilot transmission period of the first type of antenna group, and/or the pilot sequence information of the first type of antenna group.

需要说明的是，本发明实施例***中第一类天线组的导频发送资源位置可以为：从一组预定义的图样中进行选择、或根据随机数生成、或由***预设。 It should be noted that the location of the pilot transmission resource of the first type of antenna group in the system of the embodiment of the present invention may be: selecting from a set of predefined patterns, or generating according to a random number, or being preset by the system.

基站，还设置为发送第二类天线组导频信号相关信息到终端。 The base station is further configured to send the second type antenna group pilot signal related information to the terminal.

终端，还设置为基于第二类天线组导频信号相关信息接收第二类天线组导频信号。 The terminal is further configured to receive the second type antenna group pilot signal based on the second type antenna group pilot signal related information.

可选地，第二类天线组对应的导频信号相关信息包含：终端标识、和 /或终端组标识、和 /或第二类天线组的天线数目信息、和 /或第二类天线组的导频图样信息、和 /或第二类天线组的导频发送资源位置、和 /或第二类天线组的导频发送周期、和 /或第二类天线组的导频序列信息。 Optionally, the pilot signal related information corresponding to the second type of antenna group includes: a terminal identifier, and/or a terminal group identifier, and/or antenna number information of the second type antenna group, and/or a second type antenna group Pilot pattern information, and/or pilot transmission resource locations of the second type of antenna group, and/or pilot transmission periods of the second type of antenna group, and/or pilot sequence information of the second type of antenna group.

上述导频信号发送位置为根据随机数生成，其中随机数与***参数有关； ***参数包含：小区标识，和 /或帧标识，和 /或子帧标识，和 /或***带宽。 The pilot signal transmission position is generated according to a random number, wherein the random number is related to a system parameter; the system parameter includes: a cell identifier, and/or a frame identifier, and/or a subframe identifier, and/or a system bandwidth.

终端侧包含 N个终端，由基站确定 N个终端中的 M个终端，用于接收第一类天线组的导频信号；其中， M小于等于N。 The terminal side includes N terminals, and the base station determines M terminals of the N terminals for receiving pilot signals of the first type of antenna group; wherein, M is less than or equal to N.

M个终端中的 X个终端，用于发送第一类天线组的信道反馈信息给基站；其中， X小于等于M。 X terminals of the M terminals are configured to send channel feedback information of the first type of antenna group to the base station; Where X is less than or equal to M.

可选地， N个终端的全部或者部分终端，共享各自的第一类天线组的信道状态信息。 Optionally, all or part of the terminals of the N terminals share channel state information of the respective first antenna group.

可选地，由基站确定 M个终端中的 X个终端使用相同的资源发送第一类天线组的导频信号的信道反馈信息。 Optionally, the base station determines that the X terminals of the M terminals use the same resource to send channel feedback information of the pilot signals of the first type of antenna group.

第一类天线组的信道反馈信息为：由 N个终端的全部或部分终端的第一类天线组信道状态信息生成。 The channel feedback information of the first type of antenna group is: generated by channel state information of the first type of antenna group of all or part of the terminals of the N terminals.

由 M个终端接收所述第一类天线组所对应的导频信号，其中 Q个终端接收其他剩余的 (M-Q)个终端的第一类天线组所对应的导频信号。 The pilot signals corresponding to the first type of antenna group are received by the M terminals, wherein the Q terminals receive the pilot signals corresponding to the first type of antenna groups of the other remaining (M-Q) terminals.

终端，还设置为接收其他终端的第一类天线组的信道状态信息。 The terminal is further configured to receive channel state information of the first type of antenna group of the other terminal.

图 4为本发明实施例实现空分复用的基站结构框图，如图 4所示，包括：发送模块和接收模块；其中， 4 is a structural block diagram of a base station implementing space division multiplexing according to an embodiment of the present invention. As shown in FIG. 4, the method includes: a sending module and a receiving module;

发送模块，设置为按照第一发送周期发送第一类天线组的导频信号；按照第二发送周期，发送生成的第二类天线组的导频信号，其中第二发送周期小于第一发送周期。 The sending module is configured to send the pilot signal of the first type of antenna group according to the first sending period, and send the generated pilot signal of the second type of antenna group according to the second sending period, where the second sending period is smaller than the first sending period .

发送第一类天线组的导频信号具体包括：发送模块釆用相同或不同的天线发送第一类天线组对应的导频信号到终端。 The transmitting the pilot signal of the first type of antenna group specifically includes: sending, by the sending module, the pilot signal corresponding to the first type of antenna group to the terminal by using the same or different antennas.

发送第二类天线组的导频信号具体包括：发送模块釆用相同或不同的天线发送第一类天线组对应的导频信号。 The transmitting the pilot signals of the second type of antenna group specifically includes: sending, by the transmitting module, the pilot signals corresponding to the first type of antenna groups by using the same or different antennas.

本发明实施例实现空分复用的基站还包括导频信号模块，设置为根据终端返回的接收第一类天线组的导频信号的第一类天线组信道状态反馈信息，生成第二类天线组的导频信号，输出给发送模块。 The base station implementing the space division multiplexing according to the embodiment of the present invention further includes a pilot signal module, configured to generate a second type of antenna according to the channel state feedback information of the first type of antenna group that receives the pilot signal of the first type of antenna group returned by the terminal. The pilot signals of the group are output to the transmitting module.

本发明实施例实现空分复用的基站还包括导频信号相关信息模块，设置为生成第一类天线组的导频信号相关信息，并发送给终端；还设置为生成第二类天线组的导频信号相关信息，并发送给终端。需要说明的是，本发明实施例接收模块，还设置为接收来自终端的接收第二类天线组的导频信号的第二类天线信道状态反馈信息。 The base station implementing the space division multiplexing according to the embodiment of the present invention further includes a pilot signal related information module, configured to generate pilot signal related information of the first type of antenna group, and send the information to the terminal; and further configured to generate the second type antenna group. Pilot signal related information is sent to the terminal. It should be noted that, in the embodiment of the present invention, the receiving module is further configured to receive the second type of antenna channel state feedback information of the pilot signal from the terminal that receives the second type of antenna group.

此时，导频信号模块，还设置为根据终端返回的接收第二类天线组的导频信号的第二类天线组信道状态反馈信息，生成第三类天线组的导频信号，输出给发送模块。 At this time, the pilot signal module is further configured to generate a pilot signal of the third type of antenna group according to the channel state feedback information of the second type of antenna group that receives the pilot signal of the second type of antenna group returned by the terminal, and output the signal to the transmission. Module.

第一类天线组包括：实际配置的物理天线、或由实际配置的物理天线进行虚拟化后生成的逻辑天线。 The first type of antenna group includes: a physically configured physical antenna, or a logical antenna generated by virtualizing a physically configured physical antenna.

第一类天线组的天线数目小于第二类天线组的天线数目。 The number of antennas of the first type of antenna group is smaller than the number of antennas of the second type of antenna group.

本发明实施例基站还包括虚拟化模块，用于按照发送模块中的天线将第一类天线组的全部或者部分天线进行虚拟化，以生成天线数目小于第一类天线组的至少一个第二类天线组，并通知给发送模块和接收模块。 The base station of the embodiment of the present invention further includes a virtualization module, configured to virtualize all or part of the antennas of the first type of antenna group according to the antennas in the sending module, to generate at least one second type of antennas smaller than the first type of antenna groups. The antenna group is notified to the transmitting module and the receiving module.

需要说明的是，釆用本发明实施例方法，可以容易看出，通过虚拟化模块，将第二类天线组的全部或者部分天线进行虚拟化，以生成天线数目小于或等于第二类天线组的第三类天线组。可选地，第一类天线组信道状态反馈信息包含：终端与第一类天线组之间信道的高阶统计信息。 It should be noted that, by using the method of the embodiment of the present invention, it can be easily seen that all or part of the antennas of the second type of antenna group are virtualized by the virtualization module, so that the number of antennas is less than or equal to the second type of antenna group. The third type of antenna group. Optionally, the first type of antenna group channel state feedback information includes: high-order statistical information of a channel between the terminal and the first type of antenna group.

发送模块，还设置为基于第一类天线组导频信号相关信息发送第一类天线组的导频信号到终端。 The sending module is further configured to send the pilot signal of the first type of antenna group to the terminal based on the pilot information related information of the first type of antenna group.

第一类天线组导频信号相关信息包含：第一类天线组的天线数目信息、和 /或第一类天线组的导频图样信息、和 /或第一类天线组的导频发送资源位置、和 /或第一类天线组的导频发送周期、和 /或第一类天线组的导频序列信息。 The first type of antenna group pilot signal related information includes: antenna number information of the first type of antenna group, and/or pilot pattern information of the first type of antenna group, and/or pilot transmission resource position of the first type of antenna group And/or pilot transmission periods of the first type of antenna group, and/or pilot sequence information of the first type of antenna group.

需要说明的是，本发明实施例第一类天线组的导频信号发送资源位置可以为：从一组预定义的图样中进行选择、或根据随机数生成、或由***预设。 It should be noted that the location of the pilot signal transmission resource of the antenna group of the first type of the embodiment of the present invention may be: selecting from a set of predefined patterns, or generating according to a random number, or preset by the system.

发送模块，还设置为基于第二类天线组导频信号相关信息发送第二类天线组的导频信号到终端。 The sending module is further configured to send the pilot signal of the second type of antenna group to the terminal based on the information about the pilot signal of the second type of antenna group.

可选地，第二类天线组对应的导频信号相关信息包含：终端标识、和 /或终端组标识、和 /或第二类天线组的天线数目信息、和 /或第二类天线组的导频图样信息、和 /或第二类天线组的导频发送资源位置、和 /或第二类天线组的导频发送周期、和 /或第二类天线组的导频序列信息。 Optionally, the pilot signal related information corresponding to the second type of antenna group includes: a terminal identifier, and/or The terminal group identification, and/or the antenna number information of the second type of antenna group, and/or the pilot pattern information of the second type of antenna group, and/or the pilot transmission resource location of the second type of antenna group, and/or the The pilot transmission period of the second type of antenna group, and/or the pilot sequence information of the second type of antenna group.

需要说明的是，本发明实施例第二类天线组的导频信号发送资源位置可以为：从一组预定义的图样中选择、或根据随机数生成。其中根据随机数生成中，随机数与***参数有关； ***参数包含：小区标识，和 /或帧标识，和 /或子帧标识，和 /或***带宽。 It should be noted that the location of the pilot signal transmission resource of the antenna group of the second type in the embodiment of the present invention may be: selected from a set of predefined patterns, or generated according to a random number. Where the random number is generated, the random number is related to the system parameter; the system parameters include: a cell identifier, and/or a frame identifier, and/or a subframe identifier, and/or a system bandwidth.

终端侧包含有 N个终端，本发明实施例基站中的导频信号模块，还设置为确定由 N个终端中的 M个接收第一类天线组的导频信号；此时， The terminal side includes N terminals, and the pilot signal module in the base station of the embodiment of the present invention is further configured to determine that the pilot signals of the first type of antenna group are received by M of the N terminals;

接收单元，设置为接收 M个终端中的 X个终端的接收第一类天线组的导频信号的信道反馈信息； a receiving unit, configured to receive, by the X terminals of the M terminals, channel feedback information of a pilot signal of the first type of antenna group;

其中， M小于等于 N, X小于等于M。 Where M is less than or equal to N and X is less than or equal to M.

接收 M个终端中的 X个终端的接收第一类天线组的导频信号的信道反馈信息，具体包括：使用相同的资源所述接收单元接收 M个终端中的 X个终端的、接收第一类天线组的导频信号的第一类天线组信道反馈信息。 Receiving the channel feedback information of the pilot signals of the first type of antenna groups of the X terminals of the M terminals, specifically: receiving, by using the same resource, the receiving units receive X terminals of the M terminals, and receiving the first The first type of antenna group channel feedback information of the pilot signals of the antenna group.

本发明实施例基站中的导频信号模块，还设置为设置由 M个终端接收第一类天线组所对应的导频信号，其中 Q个终端接收其他剩余的 (M-Q)个终端的第一类天线组所对应的导频信号，并将设置的结果通知给发送模块和接收模块。 The pilot signal module in the base station is further configured to: receive, by the M terminals, a pilot signal corresponding to the first type of antenna group, where the Q terminals receive the first type of other remaining (MQ) terminals. The pilot signal corresponding to the antenna group, and notifying the sending module and the receiving module of the setting result.

图 5为本发明实施例实现空分复用的终端结构框图，如图 5所示，包括：发送单元、接收单元；其中， 5 is a block diagram of a terminal structure for implementing space division multiplexing according to an embodiment of the present invention. As shown in FIG. 5, the method includes: a sending unit and a receiving unit;

接收单元，设置为按照第一接收周期接收第一类天线组的导频信号；按照第二接收周期接收第二类天线组的导频信号，其中，第二接收周期小于第一接收周期。 The receiving unit is configured to receive the pilot signal of the first type of antenna group according to the first receiving period, and receive the pilot signal of the second type of antenna group according to the second receiving period, wherein the second receiving period is smaller than the first receiving period.

发送单元，还设置为发送第二类天线组的信道状态反馈信息。接收单元，还设置为接收基站生成第三类天线组的导频信号。本发明实施例终端还包括数据解调单元，设置为根据第三类天线组的导频信号，进行数据信道的解调。 The sending unit is further configured to send channel state feedback information of the second type of antenna group. The receiving unit is further configured to receive, by the base station, a pilot signal that generates a third type of antenna group. The terminal of the embodiment of the present invention further includes a data demodulation unit configured to perform demodulation of the data channel according to the pilot signal of the third type of antenna group.

需要说明的是，本发明实施例第二类天线组的天线数目小于第一类天线组；第二类天线组的每根天线，由第一类天线组的全部或部分天线虚拟化生成。 It should be noted that, in the embodiment of the present invention, the number of antennas of the second type of antenna group is smaller than that of the first type of antenna group; and each antenna of the second type of antenna group is generated by all or part of antennas of the first type of antenna group.

需要说明的是，通过本发明实施例容易看出，对于第三类天线组天线数目小于或等于第二类天线组，釆用本发明实施例方法可以实现第三类天线组的每根天线，由第二类天线组的全部或部分天线虚拟化生成。 It should be noted that, according to the embodiment of the present invention, for the antenna group of the third type of antenna group is less than or equal to the antenna group of the second type, each antenna of the third type antenna group can be implemented by using the method of the embodiment of the present invention. All or part of the antenna virtualization of the second type of antenna group is generated.

本发明实施例终端还包括信道状态获取单元，设置为获得信道状态信息，并生成所述第二类天线组信道状态反馈信息。也就是说第二类天线组信道状态反馈信息为：由基站发送的第二类天线组导频信号时，由信道状态获取单元获得的信道状态信息生成。 The terminal of the embodiment of the present invention further includes a channel state acquiring unit, configured to obtain channel state information, and generate channel state feedback information of the second type of antenna group. That is to say, the channel state feedback information of the second type of antenna group is: when the second type antenna group pilot signal transmitted by the base station is generated, the channel state information obtained by the channel state acquiring unit is generated.

本发明实施例终端还包信道状态共享单元，设置为共享信道状态获取单元获取的第一类天线组信道状态信息。 In the embodiment of the present invention, the terminal further includes a channel state sharing unit, which is configured to acquire channel state information of the first type of antenna group acquired by the shared channel state acquiring unit.

接收单元，还设置为接收基站发送的第一类天线组导频信号相关信息；基于第一类天线组导频信号相关信息接收第一类天线组导频信号； The receiving unit is further configured to receive the first type of antenna group pilot signal related information sent by the base station; and receive the first type antenna group pilot signal based on the first type antenna group pilot signal related information;

第一类天线组导频信号相关信息包括：第一类天线组的天线数目信息、和 /或第一类天线组的导频图样信息、和 /或第一类天线组的导频发送资源位置、和 /或第一类天线组的导频发送周期、和 /或第一类天线组的导频序列信息。 The first type of antenna group pilot signal related information includes: antenna number information of the first type of antenna group, and/or pilot pattern information of the first type of antenna group, and/or pilot transmission resource position of the first type of antenna group And/or pilot transmission periods of the first type of antenna group, and/or pilot sequence information of the first type of antenna group.

第二类天线组的导频信号发送资源位置可以为：从一组预定义的图样中选择、或根据随机数生成。第三类天线组的导频信号发送资源位置可以为：从一组预定义的图样中选择、或根据随机数生成。 The pilot signalling resource locations of the second type of antenna group may be: selected from a set of predefined patterns, or generated from random numbers. The pilot signal transmission resource location of the third type of antenna group can be: selected from a set of predefined patterns, or generated from random numbers.

上述导频发送资源位置中根据随机数生成中，随机数与***参数有关； ***参数包含：小区标识，和 /或帧标识，和 /或子帧标识，和 /或***带宽。 In the above-mentioned pilot transmission resource location, according to the random number generation, the random number is related to the system parameter; the system parameters include: a cell identifier, and/or a frame identifier, and/or a subframe identifier, and/or a system bandwidth.

接收单元，还设置为接收来自基站的第二类天线组导频信号相关信息，基于第二类天线组导频信号相关信息接收第二类天线组导频信号。 The receiving unit is further configured to receive the second type antenna group pilot signal related information from the base station, and receive the second type antenna group pilot signal based on the second type antenna group pilot signal related information.

第二类天线组对应的导频信号相关信息包括：终端标识、和 /或终端组标识、和 /或第二类天线组的天线数目信息、和 /或第二类天线组的导频图样信息、和 /或第二类天线组的导频发送资源位置、和 /或第二类天线组的导频发送周期、和 /或第二类天线组的导频序列信息。 The pilot signal related information corresponding to the second type of antenna group includes: a terminal identifier, and/or a terminal group identifier, and/or antenna number information of the second type antenna group, and/or pilot pattern information of the second type antenna group. And/or a pilot transmission resource location of the second type of antenna group, and/or a pilot transmission period of the second type of antenna group, and/or pilot sequence information of the second type of antenna group.

终端侧包含有 N个终端，由基站确定由 N个终端中的 M个终端的接收单元，均设置为接收第一类天线组的导频信号。 The terminal side includes N terminals, and the base station determines that the receiving units of the M terminals of the N terminals are all set to receive the pilot signals of the first type of antenna group.

M个终端中的 X个终端的接收单元，均设置为接收第一类天线组的导频信号；此时，发送单元，设置为发送 X个终端的信道反馈信息到基站。 The receiving units of the X terminals of the M terminals are all set to receive the pilot signals of the first type of antenna group; at this time, the transmitting unit is configured to send channel feedback information of the X terminals to the base station.

由 N个终端的全部或者部分,共享各自的第一类天线组的信道状态信息。发送单元发送 X个终端的信道反馈信息到基站具体包括：釆用相同的资源发送 X个终端的信道反馈信息到基站。 The channel state information of the respective first antenna group is shared by all or part of the N terminals. The sending, by the sending unit, the channel feedback information of the X terminals to the base station specifically includes: transmitting the channel feedback information of the X terminals to the base station by using the same resource.

基站确定由 M个终端的接收单元接收第一类天线组所对应的导频信号，其中 Q个终端的接收单元接收其他剩余的 (M-Q)个终端的第一类天线组所对应的导频信号。 The base station determines that the pilot signals corresponding to the first type of antenna group are received by the receiving units of the M terminals, where the receiving units of the Q terminals receive the pilot signals corresponding to the first type of antenna groups of other remaining (MQ) terminals. .

接收模块，还设置为接收其他终端的第一类天线组的信道状态信息。下面通过基站侧的具体的实施例进一步详细说明本发明实施例方法。图 6为本发明实施例基站侧实现空分复用的实施例 1的流程图，如图 6 所示，包括：步骤 600: 基站按照第一发送周期发送第一类天线组的导频信号到终端。本步骤中，第一类天线组为：实际配置的物理天线、或，由实际配置的物理天线进行虚拟化后生成的逻辑天线。 The receiving module is further configured to receive channel state information of the first type of antenna group of the other terminal. The method of the embodiment of the present invention is further described in detail below through a specific embodiment on the base station side. FIG. 6 is a flowchart of Embodiment 1 of implementing spatial division multiplexing on a base station side according to an embodiment of the present invention. As shown in FIG. 6, the method includes: Step 600: The base station sends the pilot signal of the first type of antenna group to the terminal according to the first sending period. In this step, the first type of antenna group is: a physically configured physical antenna, or a logical antenna generated by virtualizing the actually configured physical antenna.

步骤 601 : 基于终端发送的接收第一类天线组的导频信号的信道状态反馈信息，生成第二类天线组的导频信号。 Step 601: Generate a pilot signal of the second type of antenna group based on channel state feedback information of the pilot signal of the first type of antenna group sent by the terminal.

步骤 602: 按照周期小于第一发送周期的第二发送周期，发送第二类天线组的导频信号到终端。 Step 602: Send a pilot signal of the second type of antenna group to the terminal according to a second transmission period whose period is less than the first transmission period.

步骤 603 : 基于终端发送的接收第二类天线组的导频信号的信道状态反馈信息；生成第三类天线组的导频信号，以提供给终端进行数据信道解调。 Step 603: Perform channel state feedback information of the pilot signal of the second type of antenna group sent by the terminal, and generate a pilot signal of the third type of antenna group to provide the terminal for data channel demodulation.

可选地，终端接收第一类天线组导频信号的相关信息；基于第一类天线组的导频信号相关信息接收第一类天线组导频信号；之后， Optionally, the terminal receives the information about the pilot signals of the first type of antenna group; and receives the pilot signals of the first type of antenna groups based on the pilot signal related information of the first type of antenna groups;

可选地，第二类天线组的天线数目小于第一类天线组的天线数目；第二类天线组为：将第一类天线组的全部或者部分天线进行虚拟化生成的天线构成。 Optionally, the number of antennas of the second type of antenna group is smaller than the number of antennas of the first type of antenna group; and the second type of antenna group is: an antenna formed by virtualizing all or part of the antennas of the first type of antenna group.

同理，基站确定第二类天线组的天线数目小于或等于第三类天线组的天线数目。第三类天线组为：将第二类天线组的全部或者部分天线进行虚拟化生成的天线构成；之后， Similarly, the base station determines that the number of antennas of the second type of antenna group is less than or equal to the number of antennas of the third type of antenna group. The third type of antenna group is: an antenna formed by virtualizing all or part of the antennas of the second type of antenna group; and thereafter,

可选地，在第一类天线组和第二类天线组进行虚拟化时， Optionally, when the first type of antenna group and the second type of antenna group are virtualized,

图 7为本发明实施例基站侧实现空分复用的实施例 2的流程图，如图 7 所示，包括： FIG. 7 is a flowchart of Embodiment 2 of implementing spatial division multiplexing on a base station side according to an embodiment of the present invention. As shown in FIG. 7, the method includes:

步骤 700: 基站按照第一发送周期发送第一类天线组的导频信号到终端。本步骤中，第一类天线组为：实际配置的物理天线、或，由实际配置的物理天线进行虚拟化后生成的逻辑天线。 Step 700: The base station sends the pilot signal of the first type of antenna group to the terminal according to the first sending period. In this step, the first type of antenna group is: a physical antenna that is actually configured, or a logical antenna that is generated by virtualizing the actually configured physical antenna.

步骤 701 : 基于终端发送的接收第一类天线组的导频信号的信道状态反馈信息，生成第二类天线组的导频信号。步骤 702: 按照周期小于第一发送周期的第二发送周期，发送第二类天线组的导频信号到终端。 Step 701: Generate pilot signals of the second type of antenna group based on channel state feedback information of the pilot signals of the first type of antenna group sent by the terminal. Step 702: Send a pilot signal of the second type of antenna group to the terminal according to a second transmission period whose period is less than the first transmission period.

步骤 703: 基站发送第二类天线组导频信号相关信息到终端，终端基于第二类天线组导频信号相关信息接收第二类天线组导频信号。 Step 703: The base station sends the second type antenna group pilot signal related information to the terminal, and the terminal receives the second type antenna group pilot signal based on the second type antenna group pilot signal related information.

同理，第二类天线组的天线数目小于或等于第三类天线组的天线数目。第三类天线组为：将第二类天线组的全部或者部分天线进行虚拟化生成的天线构成；之后， Similarly, the number of antennas of the second type of antenna group is less than or equal to the number of antennas of the third type of antenna group. The third type of antenna group is: an antenna formed by virtualizing all or part of the antennas of the second type of antenna group; thereafter,

可选地，第一类天线组信道状态反馈信息包含：终端与第一类天线组之间信道的高阶统计信息。 Optionally, the first type of antenna group channel state feedback information includes: high-order statistical information of a channel between the terminal and the first type of antenna group.

实施例 3结合基站侧对接收导频信号终端的确定，以更好的实现本发明实施例的技术效果部分进行详细说明。 The third embodiment combines the determination of the receiving pilot signal terminal with the base station side to better explain the technical effects of the embodiment of the present invention.

在图 6和图 7所示的实施例 1和实施例 2基站发送第一类天线组的导频信号后， After the pilot signals of the first type of antenna group are transmitted by the base station of Embodiment 1 and Embodiment 2 shown in FIG. 6 and FIG. 7,

终端侧包含有 N个终端，由 N个终端中的 M个终端接收第一类天线组的导频信号；其中， M小于等于N。 The terminal side includes N terminals, and the M signals of the first type of antenna group are received by M terminals of the N terminals; wherein, M is less than or equal to N.

由上述 M个终端接收第一类天线组所对应的导频信号，其中 Q个终端接收其他 M-Q个终端的第一类天线组所对应的导频信号。 The pilot signals corresponding to the first type of antenna group are received by the M terminals, wherein the Q terminals receive the pilot signals corresponding to the first type of antenna groups of the other M-Q terminals.

基站接收 M个终端中的 X个终端的、接收第一类天线组的导频信号的信道反馈信息；其中， X小于等于M。 The base station receives channel feedback information of the pilot signals of the first type of antenna groups of the X terminals of the M terminals; where X is less than or equal to M.

可选地，由 M个终端中的 X个终端使用相同的资源接收第一类天线组的导频信号的信道反馈信息；之后， Optionally, channel feedback information of the pilot signals of the first type of antenna group is received by the X terminals of the M terminals using the same resource;

可选地，第一类天线组的信道反馈信息为：由 N个终端的全部或部分终端的第一类天线组信道状态信息生成的信息；之后，可选地， N个终端的全部或者部分，共享各自的所述第一类天线组的信道状态信息； Optionally, the channel feedback information of the first type of antenna group is: information generated by channel state information of the first type of antenna group of all or part of the terminals of the N terminals; Optionally, all or part of the N terminals share channel state information of the respective first antenna group;

可选地，终端接收其他终端的第一类天线组的信道状态信息。 Optionally, the terminal receives channel state information of the first type of antenna group of the other terminal.

基站接收到第一类天线组信道状态反馈信息后，按照实施例 1和实施例 2, 继续本发明实施例方法后续步骤。 After receiving the channel state feedback information of the first type of antenna group, the base station continues the subsequent steps of the method according to the embodiment of the present invention according to the first embodiment and the second embodiment.

实施例 4在图 6和图 7所示的实施例 1和实施例 2的基础上，针对步骤 600、步骤 700进行了优选方案的确定。 Embodiment 4 Based on the embodiment 1 and the embodiment 2 shown in Figs. 6 and 7, the determination of the preferred embodiment is performed for the steps 600 and 700.

步骤 600、步骤 700 中，进一步地，第一类天线组的导频信号相关信息包含：第一类天线组的天线数目信息、和 /或，第一类天线组的导频图样信息、和 /或，第一类天线组的导频发送资源位置、和 /或，第一类天线组的导频发送周期、和 /或，第一类天线组的导频序列信息。 In step 600, step 700, further, the pilot signal related information of the first type of antenna group includes: antenna number information of the first type of antenna group, and/or pilot pattern information of the first type of antenna group, and/or Or, the pilot transmission resource location of the first type of antenna group, and/or the pilot transmission period of the first type of antenna group, and/or the pilot sequence information of the first type of antenna group.

其中，第一类天线组的导频发送资源位置为：从一组预定义的图样中进行选择、或，根据随机数生成、或，由***预设。 The pilot transmission resource locations of the first type of antenna group are: selected from a set of predefined patterns, or generated according to random numbers, or preset by the system.

随机数与***参数有关； ***参数包含：小区标识、帧标识、子帧标识、 ***带宽。 The random number is related to the system parameters; the system parameters include: cell identifier, frame identifier, subframe identifier, system bandwidth.

实施例 5在上述基站侧的实施例 4中由实施例 2和实施例 4方案结合的基础上，针对步骤 703进行了优选方案的确定。 The fifth embodiment is based on the combination of the embodiment 2 and the embodiment 4 in the fourth embodiment on the base station side, and the determination of the preferred scheme is performed for the step 703.

可选地，第二类天线组对应的导频信号相关信息包含：终端标识、和 /或，终端组标识、和 /或，第二类天线组的天线数目信息、和 /或，第二类天线组的导频图样信息、和 /或，第二类天线组的导频发送资源位置、和 /或，第二类天线组的导频发送周期、和 /或，第二类天线组的导频序列信息。 Optionally, the pilot signal related information corresponding to the second type of antenna group includes: a terminal identifier, and/or a terminal group identifier, and/or an antenna number information of the second type antenna group, and/or, a second type Pilot pattern information of the antenna group, and/or pilot transmission resource locations of the second type of antenna group, and/or pilot transmission periods of the second type of antenna group, and/or guidance of the second type of antenna group Frequency sequence information.

基站发送第二类天线组导频信号相关信息到终端，基于第二类天线组导频信号相关信息终端接收第二类天线组导频信号； The base station sends the second type antenna group pilot signal related information to the terminal, and the second type antenna group pilot signal related information terminal receives the second type antenna group pilot signal;

第二类天线组信道状态反馈信息包含：预编码矩阵信息、和 /或，信道质量信息、和 /或，信道秩信息、和 /或，第二类天线组的相关信息。 The second type of antenna group channel state feedback information includes: precoding matrix information, and/or, channel quality information, and/or, channel rank information, and/or related information of the second type of antenna group.

下面通过终端侧的具体的实施例进一步详细说明本发明实施例方法。图 8为本发明实施例终端侧实现空分复用的实施例 6的流程图，如图 8 所示，包括：步骤 800: 终端按照第一接收周期接收第一类天线组的导频信号，发送的第一类天线组的信道状态反馈信息到基站。 The method of the embodiment of the present invention is further described in detail below through a specific embodiment on the terminal side. FIG. 8 is a flowchart of Embodiment 6 of implementing space division multiplexing on a terminal side according to an embodiment of the present invention. As shown in FIG. 8, the method includes: Step 800: The terminal receives the pilot signal of the first type of antenna group according to the first receiving period, and sends the channel state feedback information of the first type of antenna group to the base station.

步骤 801 : 按照周期小于第一发送周期的第二接收周期，接收基站生成的第二类天线组的导频信号；发送的第二类天线组的信道状态反馈信息到基站。 Step 801: Receive a pilot signal of the second type of antenna group generated by the base station according to a second receiving period with a period smaller than the first sending period, and send channel state feedback information of the second type of antenna group to the base station.

步骤 802: 终端接收基站生成第三类天线组的导频信号，并根据第三类天线组的导频信号进行数据信道的解调。 Step 802: The terminal receives the pilot signal generated by the base station to generate the third type antenna group, and performs demodulation of the data channel according to the pilot signal of the third type antenna group.

可选地，上述实施方式中，第二类天线组的天线数目小于第一类天线组；之后， Optionally, in the foregoing implementation manner, the number of antennas of the second type of antenna group is smaller than that of the first type of antenna group;

可选地，第二类天线组的每根天线，由第一类天线组的全部或部分天线虚拟化生成。 Optionally, each antenna of the second type of antenna group is virtualized by all or part of the antennas of the first type of antenna group.

同理，第三类天线组的天线数目小于或等于第二类天线组。第三类天线组的每根天线，由第二类天线组的全部或部分天线虚拟化生成。 Similarly, the number of antennas of the third type of antenna group is less than or equal to that of the second type of antenna group. Each antenna of the third type of antenna group is virtualized by all or part of the antennas of the second type of antenna group.

图 9为本发明实施例终端侧实现空分复用的实施例 7的流程图，如图 9 所示，包括： FIG. 9 is a flowchart of Embodiment 7 of implementing space division multiplexing on a terminal side according to an embodiment of the present invention. As shown in FIG. 9, the method includes:

步骤 900: 终端接收基站发送的第一类天线组导频信号相关信息。 Step 900: The terminal receives information about the first type of antenna group pilot signals sent by the base station.

步骤 901 : 终端接收第一类天线组导频信号的相关信息，基于第一类天线组的导频信号相关信息按照第一接收周期接收第一类天线组导频信号。 Step 901: The terminal receives the related information of the pilot signal of the first type of antenna group, and receives the pilot signal of the first type of antenna group according to the first receiving period based on the pilot signal related information of the first type of antenna group.

步骤 902: 终端接收第二类天线组导频信号的相关信息。 Step 902: The terminal receives information about a pilot signal of the second type of antenna group.

步骤 903 : 终端基于第二类天线组导频信号相关信息，按照周期小于第一发送周期的第二接收周期，接收基站生成的第二类天线组的导频信号；并发送的第二类天线组的信道状态反馈信息到基站。 Step 903: The terminal receives, according to the information about the pilot signal of the second type of antenna group, the pilot signal of the second type of antenna group generated by the base station according to the second receiving period that is smaller than the first sending period; and sends the second type of antenna The group's channel state feedback information is sent to the base station.

步骤 904: 终端接收基站生成第三类天线组的导频信号，并根据第三类天线组的导频信号进行数据信道的解调。 Step 904: The terminal receives the pilot signal generated by the base station to generate the third type antenna group, and performs demodulation of the data channel according to the pilot signal of the third type antenna group.

可选地，第一类天线组信道状态反馈信息包含：终端与第一类天线组之间信道的高阶统计信息；之后， Optionally, the channel state feedback information of the first type of antenna group includes: high-order statistics information of a channel between the terminal and the first type of antenna group;

可选地，上述实施方式中，由基站确定的第二类天线组的天线数目小于第一类天线组。 Optionally, in the foregoing implementation manner, the number of antennas of the second type of antenna group determined by the base station is smaller than The first type of antenna group.

同理，第三类天线组的天线数目小于或等于第二类天线组。 Similarly, the number of antennas of the third type of antenna group is less than or equal to that of the second type of antenna group.

同理，第三类天线组的每根天线，由第二类天线组的全部或部分天线虚拟化生成。 Similarly, each antenna of the third type of antenna group is generated by all or part of the antennas of the second type of antenna group.

实施例 8, 针对导频信号在终端侧由基站确定的全部或部分进行接收和处理，以本实施例作为优选方案，对该部分进行详细的说明。 Embodiment 8 The reception and processing of all or part of the pilot signal determined by the base station on the terminal side are performed. This embodiment is described as a preferred embodiment, and the part is described in detail.

终端侧包含有 N个终端，由 N个终端中的 M个终端接收第一类天线组的导频信号； The terminal side includes N terminals, and the M pilot terminals of the N terminals receive the pilot signals of the first type antenna group;

M个终端中的 X个终端的、接收第一类天线组的导频信号，并发送信道反馈信息到所述基站； Receiving, by the X terminals of the M terminals, pilot signals of the first type of antenna group, and transmitting channel feedback information to the base station;

由 M个终端接收所述第一类天线组所对应的导频信号，其中 Q个终端接收其他 M-Q个终端的第一类天线组所对应的导频信号。 The pilot signals corresponding to the first type of antenna group are received by the M terminals, wherein the Q terminals receive the pilot signals corresponding to the first type of antenna groups of the other M-Q terminals.

可选地，由 N个终端的全部或者部分，共享各自的第一类天线组的信道状态信息；之后， Optionally, channel state information of each of the first type of antenna groups is shared by all or part of the N terminals; thereafter,

可选地，第一类天线组的信道反馈信息为：由 N个终端的全部或部分终端的第一类天线组信道状态信息生成；之后， Optionally, the channel feedback information of the first type of antenna group is: generated by channel state information of the first type of antenna group of all or part of the terminals of the N terminals;

可选地，终端接收其他终端的第一类天线组的信道状态信息；之后，可选地， M个终端中的 X个终端的、接收第一类天线组的导频信号，并通过相同的资源发送信道反馈信息到所述基站。 Optionally, the terminal receives channel state information of the first type of antenna group of the other terminal; and then, optionally, the pilot signals of the X terminals of the M terminals that receive the first type of antenna group, and pass the same The resource transmits channel feedback information to the base station.

在另一实施例 9 中，基于实施例 7, 对第一类天线组的导频信号相关信息及导频信号相关信息发送资源位置进行限定，形成本实施例。具体包括：第一类天线组导频信号相关信息包含：第一类天线组的天线数目信息、和 /或，第一类天线组的导频图样信息、和 /或，第一类天线组的导频发送资源位置、和 /或，第一类天线组的导频发送周期、和 /或，第一类天线组的导频序列信息。 In another embodiment 9, based on the embodiment 7, the pilot signal related information of the first type of antenna group and the pilot signal related information transmission resource position are defined to form the present embodiment. Specifically, the first type of antenna group pilot signal related information includes: antenna number information of the first type of antenna group, and/or pilot pattern information of the first type of antenna group, and/or, the first type of antenna group Pilot transmission resource location, and/or pilot transmission period of the first type of antenna group, and/or pilot sequence of the first type of antenna group Column information.

第一类天线组的导频发送资源位置为：从一组预定义的图样中进行选择、或，根据随机数生成、或，由***预设。 The pilot transmission resource locations of the first type of antenna group are: selected from a set of predefined patterns, or generated according to random numbers, or preset by the system.

可选地，随机数与***参数有关； ***参数包含：小区标识，和 /或帧标识，和 /或子帧标识，和 /或***带宽；之后， Optionally, the random number is related to system parameters; the system parameters include: a cell identifier, and/or a frame identifier, and/or a subframe identifier, and/or a system bandwidth;

虽然本申请所揭露的实施方式如上，但所述的内容仅为便于理解本申请而釆用的实施方式，并非用以限定本申请。任何本申请所属领域内的技术人员，在不脱离本申请所揭露的精神和范围的前提下，可以在实施的形式及细节上进行任何的修改与变化，但本申请的专利保护范围，仍须以所附的权利要求书所界定的范围为准。工业实用性本发明实施例提出的实现空分复用的方法、 ***、基站及终端，包括基站按照第一发送周期发送第一类天线组的导频信号；根据接收到的第一类天线组信道状态反馈信息，生成第二类天线组的导频信号；按照第二发送周期，发送生成的第二类天线组的导频信号，其中第二发送周期小于第一发送周期。本发明实施例通过釆用第二发送周期小于第一发送周期，进行导频信号的发送，实现了降低空分复用的导频开销。通过虚拟化方法，降低了***的实现复杂度。 The embodiments disclosed in the present application are as described above, but are merely for the purpose of understanding the present application and are not intended to limit the application. Any modification or variation in the form and details of the implementation may be made by those skilled in the art without departing from the spirit and scope of the disclosure. The scope defined by the appended claims shall prevail. Industrial Applicability The method, system, base station and terminal for implementing spatial division multiplexing according to embodiments of the present invention include: a base station transmitting a pilot signal of a first type of antenna group according to a first transmission period; and receiving, according to the received first antenna group The channel state feedback information generates a pilot signal of the second type of antenna group; and transmits the generated pilot signal of the second type of antenna group according to the second transmission period, wherein the second transmission period is smaller than the first transmission period. In the embodiment of the present invention, the pilot signal is transmitted by using the second transmission period less than the first transmission period, and the pilot overhead of reducing the space division multiplexing is implemented. Through the virtualization method, the implementation complexity of the system is reduced.

Claims

权利要求书 claims

1、一种实现空分复用的方法，包括： 1. A method for realizing spatial division multiplexing, including:

基站按照第一发送周期发送第一类天线组的导频信号；根据接收到的第一类天线组信道状态反馈信息，生成第二类天线组的导频信号； The base station sends the pilot signal of the first type of antenna group according to the first transmission cycle; and generates the pilot signal of the second type of antenna group based on the received channel status feedback information of the first type of antenna group;

按照第二发送周期，发送生成的第二类天线组的导频信号，其中第二发送周期小于第一发送周期。 According to the second transmission period, the generated pilot signal of the second type of antenna group is transmitted, where the second transmission period is shorter than the first transmission period.

2、根据权利要求 1所述的方法，所述方法还包括：所述基站接收第二类天线组信道状态反馈信息； 2. The method according to claim 1, further comprising: the base station receiving the second type antenna group channel status feedback information;

根据接收到的第二类天线组信道状态反馈信息生成用于终端进行数据信道解调的第三类天线组的导频信号。 According to the received channel state feedback information of the second type antenna group, a pilot signal of the third type antenna group used for the terminal to demodulate the data channel is generated.

3、根据权利要求 1或 2所述的方法，其中，所述第二类天线组的天线数目小于所述第一类天线组的天线数目。 3. The method according to claim 1 or 2, wherein the number of antennas of the second type antenna group is smaller than the number of antennas of the first type antenna group.

4、根据权利要求 1或 2所述的方法，其中，所述第一类天线组为实际配置的物理天线，或由实际配置的物理天线进行虚拟化后生成的逻辑天线；所述第二类天线组为：由所述第一类天线组的全部或者部分天线进行虚拟化生成的逻辑天线。 4. The method according to claim 1 or 2, wherein the first type of antenna group is an actually configured physical antenna, or a logical antenna generated by virtualizing the actually configured physical antenna; the second type The antenna group is: a logical antenna generated by virtualizing all or part of the antennas of the first type of antenna group.

5、根据权利要求 1或 2所述的方法，其中，所述第一类天线组信道状态反馈信息包含：接收所述第一类天线组的导频信号的终端与所述第一类天线组之间信道的高阶统计信息。 5. The method according to claim 1 or 2, wherein the first type antenna group channel state feedback information includes: a terminal receiving a pilot signal of the first type antenna group and the first type antenna group High-order statistics of the channel between.

6、根据权利要求 1或 2所述的方法，所述方法还包括：所述基站发送第一类天线组的导频信号相关信息。 6. The method according to claim 1 or 2, further comprising: the base station sending pilot signal related information of the first type of antenna group.

7、根据权利要求 6所述的方法，其中，所述第一类天线组导频信号相关信息包含：第一类天线组的天线数目信息、和 /或第一类天线组的导频图样信息、和 /或第一类天线组的导频发送资源位置、和 /或第一类天线组的导频发送周期、和 /或第一类天线组的导频序列信息。 7. The method according to claim 6, wherein the first-type antenna group pilot signal related information includes: antenna number information of the first-type antenna group, and/or pilot pattern information of the first-type antenna group , and/or the pilot transmission resource location of the first type of antenna group, and/or the pilot transmission period of the first type of antenna group, and/or the pilot sequence information of the first type of antenna group.

8、根据权利要求 1或 2所述的方法，其中，所述基站发送第二类天线组导频信号相关信息。 8. The method according to claim 1 or 2, wherein the base station sends a second type of antenna group Pilot signal related information.

9、根据权利要求 8所述的方法，其中，所述第二类天线组对应的导频信号相关信息包含：终端标识、和 /或终端组标识、和 /或第二类天线组的天线数目信息、和 /或第二类天线组的导频图样信息、和 /或第二类天线组的导频发送资源位置、和 /或第二类天线组的导频发送周期、和 /或第二类天线组的导频序列信息。 9. The method according to claim 8, wherein the pilot signal related information corresponding to the second type of antenna group includes: terminal identification, and/or terminal group identification, and/or the number of antennas of the second type of antenna group. information, and/or the pilot pattern information of the second type of antenna group, and/or the pilot transmission resource location of the second type of antenna group, and/or the pilot transmission period of the second type of antenna group, and/or the second type of antenna group. Pilot sequence information of the class antenna group.

10、根据权利要求 1或 2所述的方法，其中，所述发送第一类天线组的导频信号为：所述基站在不同的第一发送周期釆用相同或不同的天线发送所述第一类天线组的导频信号； 10. The method according to claim 1 or 2, wherein the transmitting the pilot signal of the first type of antenna group is: the base station uses the same or different antennas to transmit the first type in different first transmission periods. Pilot signal for a type of antenna group;

所述发送第二类天线组的导频信号为：所述基站在不同的第二发送周期内釆用相同或不同的天线发送所述第二类天线组的导频信号。 The sending of the pilot signal of the second type of antenna group is: the base station uses the same or different antennas to send the pilot signal of the second type of antenna group in different second transmission periods.

11、一种实现空分复用的方法，包括： 11. A method for realizing spatial division multiplexing, including:

终端按照第一接收周期接收第一类天线组的导频信号，生成第一类天线组信道状态反馈信息并发送； The terminal receives the pilot signal of the first type of antenna group according to the first receiving cycle, generates and sends the channel status feedback information of the first type of antenna group;

按照第二接收周期接收第二类天线组的导频信号，生成第二类天线组信道状态反馈信息并发送；其中，第二接收周期小于第一接收周期。 Receive the pilot signal of the second type of antenna group according to the second receiving period, generate and send the channel state feedback information of the second type of antenna group; wherein the second receiving period is shorter than the first receiving period.

12、根据权利要求 11所述的方法，所述方法还包括：所述终端接收第三类天线组的导频信号，根据接收到的第三类天线组的导频信号进行数据信道的解调。 12. The method according to claim 11, further comprising: the terminal receiving a pilot signal of a third type antenna group, and performing demodulation of the data channel according to the received pilot signal of the third type antenna group. .

13、根据权利要求 11或 12所述的方法，其中，所述第二类天线组的天线数目小于所述第一类天线组的天线数目。 13. The method according to claim 11 or 12, wherein the number of antennas of the second type antenna group is smaller than the number of antennas of the first type antenna group.

14、根据权利要求 11或 12所述的方法，其中，所述第二类天线组为：由所述第一类天线组的全部或部分天线虚拟化生成的逻辑天线。 14. The method according to claim 11 or 12, wherein the second type of antenna group is: a logical antenna generated by virtualizing all or part of the antennas of the first type of antenna group.

15、根据权利要求 11或 12所述的方法，其中，所述第一类天线组信道状态反馈信息包含：所述终端与第一类天线组之间信道的高阶统计信息。 15. The method according to claim 11 or 12, wherein the first type antenna group channel status feedback information includes: high-order statistical information of the channel between the terminal and the first type antenna group.

16、根据权利要求 11或 12所述的方法，所述方法还包括：所述终端接收第一类天线组导频信号的相关信息； 16. The method according to claim 11 or 12, the method further comprising: the terminal receiving relevant information of the pilot signal of the first type of antenna group;

所述终端基于接收到的第一类天线组的导频信号相关信息接收所述第一类天线组导频信号。 The terminal receives the first type of antenna based on the received pilot signal related information of the first type of antenna group. Antenna group pilot signal.

17、根据权利要求 16所述的方法，其中，所述第一类天线组导频信号相关信息包含：第一类天线组的天线数目信息、和 /或第一类天线组的导频图样信息、和 /或第一类天线组的导频发送资源位置、和 /或第一类天线组的导频发送周期、和 /或第一类天线组的导频序列信息。 17. The method according to claim 16, wherein the information related to the pilot signal of the first type of antenna group includes: the number of antennas of the first type of antenna group, and/or the pilot pattern information of the first type of antenna group. , and/or the pilot transmission resource location of the first type of antenna group, and/or the pilot transmission period of the first type of antenna group, and/or the pilot sequence information of the first type of antenna group.

18、根据权利要求 11或 12所述的方法，所述方法还包括：所述终端接收第二类天线组导频信号相关信息； 18. The method according to claim 11 or 12, further comprising: the terminal receiving information related to the pilot signal of the second type of antenna group;

所述终端基于接收到的第二类天线组的导频信号相关信息，接收所述第二类天线组导频信号。 The terminal receives the second type antenna group pilot signal based on the received pilot signal related information of the second type antenna group.

19、根据权利要求 18所述的方法，其中，所述第二类天线组对应的导频信号相关信息包含：终端标识、和 /或终端组标识、和 /或第二类天线组的天线数目信息、和 /或第二类天线组的导频图样信息、和 /或第二类天线组的导频发送资源位置、和 /或第二类天线组的导频发送周期、和 /或第二类天线组的导频序列信息。 19. The method according to claim 18, wherein the pilot signal related information corresponding to the second type of antenna group includes: terminal identification, and/or terminal group identification, and/or the number of antennas of the second type of antenna group. information, and/or the pilot pattern information of the second type of antenna group, and/or the pilot transmission resource location of the second type of antenna group, and/or the pilot transmission period of the second type of antenna group, and/or the second type of antenna group. Pilot sequence information of the class antenna group.

20、根据权利要求 11或 12所述的方法，其中，所述终端所在的终端侧包含有 N个终端；所述接收第一类天线组的导频信号包括： 20. The method according to claim 11 or 12, wherein the terminal side where the terminal is located contains N terminals; the receiving the pilot signal of the first type antenna group includes:

所述 N个终端中的 M个终端接收所述第一类天线组的导频信号；其中， M小于等于N。 M terminals among the N terminals receive pilot signals of the first type of antenna group; where M is less than or equal to N.

21、根据权利要求 20所述的方法，所述方法还包括：所述 N个终端的全部或者部分，共享各自根据接收到的第一类天线组的导频信号分别生成的第一类天线组的信道状态信息。 21. The method according to claim 20, further comprising: all or part of the N terminals, sharing the first type antenna group respectively generated according to the received pilot signal of the first type antenna group. channel status information.

22、根据权利要求 20所述的方法，其中，所述发送第一类天线组信道状态反馈信息包括：所述 M个终端中的 X个终端，使用相同的资源发送所述第一类天线组信道反馈信息；其中， X小于等于M。 22. The method according to claim 20, wherein said sending the first type antenna group channel state feedback information includes: X terminals among the M terminals using the same resources to send the first type antenna group Channel feedback information; where, X is less than or equal to M.

23、根据权利要求 22所述的方法，其中，所述第一类天线组信道反馈信息为：由所述 N个终端的全部或部分终端的第一类天线组信道状态信息生成的信息。 23. The method according to claim 22, wherein the first type antenna group channel feedback information is: information generated by the first type antenna group channel status information of all or part of the N terminals.

24、根据权利要求 20所述的方法，其中，所述 M个终端接收所述第一类天线组所对应的导频信号，该方法还包括：由其中 Q个终端接收其他剩余的 (M-Q)个终端的第一类天线组所对应的导频信号。 24. The method according to claim 20, wherein the M terminals receive the first The method further includes: receiving pilot signals corresponding to the first type antenna group of the remaining (MQ) terminals by Q terminals.

25、根据权利要求 11或 12所述的方法，所述方法还包括：所述终端将所述生成的第一类天线组的信道状态反馈信息发送给所述终端所在终端侧中的其他终端。 25. The method according to claim 11 or 12, further comprising: the terminal sending the generated channel state feedback information of the first type of antenna group to other terminals on the terminal side where the terminal is located.

26、根据权利要求 11或 12所述的方法，所述方法还包括：所述终端接收所述第一类天线组的导频信号，生成所述第一类天线组的信道状态信息；所述终端接收其自身所在终端侧中的其他终端的生成的第一类天线组的信道状态信息。 26. The method according to claim 11 or 12, the method further comprising: the terminal receiving the pilot signal of the first type of antenna group, and generating the channel state information of the first type of antenna group; The terminal receives the channel state information of the first type of antenna group generated by other terminals on the terminal side where it is located.

27、一种实现空分复用的基站，包括：发送模块、接收模块；其中，发送模块，设置为按照第一发送周期发送第一类天线组的导频信号；按照第二发送周期，发送生成的第二类天线组的导频信号，其中第二发送周期小于第一发送周期； 27. A base station that implements spatial division multiplexing, including: a transmitting module and a receiving module; wherein the transmitting module is configured to transmit pilot signals of the first type of antenna group according to the first transmitting cycle; and transmit according to the second transmitting cycle. The generated pilot signal of the second type of antenna group, wherein the second transmission period is smaller than the first transmission period;

接收模块，设置为接收来自终端的接收第一类天线组的导频信号的第一类天线组信道状态反馈信息。 The receiving module is configured to receive first-type antenna group channel state feedback information from the terminal that receives the pilot signal of the first-type antenna group.

28、根据权利要求 27所述的基站，所述基站还包括导频信号模块，设置为根据所述第一类天线组信道状态反馈信息，生成第二类天线组的导频信号，输出给发送模块。 28. The base station according to claim 27, the base station further comprising a pilot signal module configured to generate a pilot signal of the second type of antenna group based on the channel status feedback information of the first type of antenna group, and output it to the transmitter module.

29、根据权利要求 27所述的基站，所述基站还包括导频信号相关信息模块，设置为生成第一类天线组的导频信号相关信息，生成第二类天线组的导频信号相关信息，并发送给终端。 29. The base station according to claim 27, further comprising a pilot signal related information module configured to generate pilot signal related information of the first type of antenna group, and generate pilot signal related information of the second type of antenna group. , and sent to the terminal.

30、根据权利要求 27~29任一项所述的基站，所述接收模块，还设置为接收来自终端发送的接收第二类天线组的导频信号的第二类天线信道状态反馈信息； 30. The base station according to any one of claims 27 to 29, the receiving module is further configured to receive the second type antenna channel status feedback information sent from the terminal to receive the pilot signal of the second type antenna group;

所述导频信号模块，还设置为根据所述第二类天线组的信道状态反馈信息，生成第三类天线组的导频信号，输出给发送模块。 The pilot signal module is also configured to generate a pilot signal of the third type of antenna group based on the channel state feedback information of the second type of antenna group, and output it to the transmitting module.

31、根据权利要求 27所述的基站，其中，所述第一类天线组的天线数目小于第二类天线组的天线数目。 31. The base station according to claim 27, wherein the number of antennas of the first type of antenna group is smaller than the number of antennas of the second type of antenna group.

32、根据权利要求 27~29任一项所述的基站，所述基站还包括虚拟化模块，用于按照所述发送模块中的天线将第一类天线组的全部或者部分天线进行虚拟化，以生成天线数目小于第一类天线组的至少一个第二类天线组，并通知给发送模块和接收模块。 32. The base station according to any one of claims 27 to 29, further comprising a virtualization module configured to virtualize all or part of the antennas of the first type of antenna group according to the antennas in the transmission module, To generate at least one second type antenna group with a smaller number of antennas than the first type antenna group, and notify the sending module and the receiving module.

33、一种实现空分复用的终端，包括：发送单元、接收单元；其中，接收单元，设置为按照第一接收周期接收第一类天线组的导频信号；按照第二接收周期接收第二类天线组的导频信号，其中，第二接收周期小于第一接收周期； 33. A terminal that implements space division multiplexing, including: a sending unit and a receiving unit; wherein the receiving unit is configured to receive the pilot signal of the first type of antenna group according to the first receiving period; and to receive the third type of antenna group according to the second receiving period. The pilot signal of the second type antenna group, wherein the second reception period is smaller than the first reception period;

34、根据权利要求 35所述的终端，所述发送单元还设置为；发送第二类天线组的信道状态反馈信息； 34. The terminal according to claim 35, the sending unit is further configured to: send channel state feedback information of the second type of antenna group;

所述接收单元还设置为：接收来自基站生成第三类天线组的导频信号；所述终端还包括数据解调单元，设置为根据来自接收单元的第三类天线组的导频信号，进行数据信道的解调。 The receiving unit is further configured to: receive a pilot signal generated by the base station from the third type antenna group; the terminal further includes a data demodulation unit configured to perform based on the pilot signal from the third type antenna group of the receiving unit. Demodulation of data channels.

35、根据权利要求 34所述的终端，其中，所述第二类天线组的天线数目小于第一类天线组。 35. The terminal according to claim 34, wherein the number of antennas of the second type antenna group is smaller than that of the first type antenna group.

36、根据权利要求 35所述的终端，其中，所述第二类天线组的每根天线，由第一类天线组的全部或部分天线虚拟化生成。 36. The terminal according to claim 35, wherein each antenna of the second type antenna group is generated by virtualization of all or part of the antennas of the first type antenna group.

37、根据权利要求 34或 36所述的终端，所述终端还包括信道状态获取单元，设置为获得信道状态信息，并生成所述第二类天线组信道状态反馈信息。 37. The terminal according to claim 34 or 36, the terminal further comprising a channel state acquisition unit configured to obtain channel state information and generate the second type antenna group channel state feedback information.

38、根据权利要求 34或 36所述的终端，所述接收单元具体设置为：接收来自基站的第一类天线组导频信号相关信息；基于第一类天线组导频信号相关信息接收所述第一类天线组导频信号； 38. The terminal according to claim 34 or 36, the receiving unit is specifically configured to: receive information related to the pilot signal of the first type of antenna group from the base station; receive the information based on the information related to the pilot signal of the first type of antenna group. The first type of antenna group pilot signal;

接收来自基站的第二类天线组导频信号相关信息，基于第二类天线组导频信号相关信息接收第二类天线组导频信号。 Receive the second type antenna group pilot signal related information from the base station, and receive the second type antenna group pilot signal based on the second type antenna group pilot signal related information.