CN101848019A - Communication device and method for forming service area of communication device - Google Patents
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Abstract
Description
Translated fromChinese技术领域technical field
本发明涉及无线通信技术，尤其涉及具有多根天线或多组天线阵列的无线通信设备。The present invention relates to wireless communication technology, in particular to a wireless communication device with multiple antennas or multiple antenna arrays.
背景技术Background technique
到目前为止，无线通信系统已经得到了长足的发展。原先的第二代移动通信系统GSM不断向通用无线分组业务GPRS、改进数据率的EDGE等技术演进，大幅度提高了系统的数据传输能力。具有更高传输速率的第三代移动通信系统例如宽带码分多址WCDMA、CDMA2000等技术也在全球许多国家和地区纷纷部署，开始投入商用。在蜂窝通信技术发展的同时，其他一些无线接入技术例如无线局域网WLAN和微波接入全球互通WiMAX也有了迅猛发展。此外，面向第四代移动通信系统的IEEE802.16m技术和第三代合作伙伴项目演进技术3GPP LTE、第三代合作伙伴项目演进技术增强3GPP LTE+等项目也已经开始启动进入研发阶段。So far, the wireless communication system has obtained great development. The original second-generation mobile communication system GSM has continuously evolved to general radio packet service GPRS, EDGE with improved data rate and other technologies, which has greatly improved the data transmission capacity of the system. Third-generation mobile communication systems with higher transmission rates, such as wideband code division multiple access WCDMA, CDMA2000 and other technologies, have also been deployed in many countries and regions around the world and have begun to be put into commercial use. Along with the development of cellular communication technology, other wireless access technologies such as wireless local area network WLAN and microwave access WiMAX have also developed rapidly. In addition, projects such as IEEE802.16m technology for the fourth-generation mobile communication system, the third-generation partnership project evolution technology 3GPP LTE, and the third-generation partnership project evolution technology enhancement 3GPP LTE+ have also begun to enter the research and development stage.
人们对高速多媒体通信以及高速无线因特网的接入业务需求急速增长，但却又面临无线频谱资源有限的情况，因而，利用现有的频带资源充分提高通信系统的传输速率和频谱利用率是亟待解决的问题。鉴于多天线技术能提高传输容量或者信号质量，以上各种系统都采用了多天线技术，在3GPP LTE-Advanced系统中和IEEE 802.16m中甚至定义了基站到移动台的8发射天线和8接收天线的天线模式。People's demand for high-speed multimedia communication and high-speed wireless Internet access services is growing rapidly, but they are faced with limited wireless spectrum resources. Therefore, it is urgent to use existing frequency band resources to fully improve the transmission rate and spectrum utilization of communication systems. The problem. In view of the fact that multi-antenna technology can improve transmission capacity or signal quality, the above systems all adopt multi-antenna technology. In the 3GPP LTE-Advanced system and IEEE 802.16m, 8 transmit antennas and 8 receive antennas from the base station to the mobile station are even defined. antenna pattern.
多天线系统的空时处理技术主要包括空间复用和空间分集等。空间分集是空时编码将数据分成多个数据子流在多根天线上同时发送，通过在发射天线间的时域引入编码冗余得到分集增益。空间复用是在发射天线发送独立的信息流，接收端采用干扰抑制的方法进行解码，以实现最大化速率。一般来讲，空间复用技术可用来提高无线通信系统的吞吐量，而空间分集技术可用来扩大无线通信系统的覆盖。Space-time processing technologies for multi-antenna systems mainly include space multiplexing and space diversity. Space diversity means that space-time coding divides data into multiple data substreams and transmits them simultaneously on multiple antennas, and diversity gain is obtained by introducing coding redundancy in the time domain between transmitting antennas. Spatial multiplexing is to send independent information streams at the transmitting antenna, and the receiving end uses the method of interference suppression for decoding to maximize the rate. Generally speaking, space multiplexing technology can be used to improve the throughput of the wireless communication system, and space diversity technology can be used to expand the coverage of the wireless communication system.
无线通信系统中，小区边缘的用户不但由于距离服务基站远，接收到服务基站的信号较弱而且受到临近小区基站信号的干扰也很大，从而恶化了小区边缘用户的系统吞吐量。In a wireless communication system, users at the edge of a cell not only receive weak signals from the serving base station because they are far away from the serving base station, but also receive a lot of interference from signals from neighboring cell base stations, which deteriorates the system throughput of the cell-edge users.
目前，多点合作传输(CoMP)技术被认为是LTE-A系统的必选技术。在该技术中，多个基站的多根天线合作为小区边缘的用户进行服务。这一方面，可以减小系统之间的干扰，另一方面，又提高了系统的容量。但是采用该技术存在一些问题。下面对此进行简单的说明。At present, the cooperative multipoint transmission (CoMP) technology is considered to be a necessary technology for the LTE-A system. In this technology, multiple antennas of multiple base stations cooperate to serve users at the cell edge. On the one hand, the interference between systems can be reduced, and on the other hand, the capacity of the system is improved. But there are some problems with adopting this technology. This is briefly explained below.
图1示出了普通基站小区配置下的多基站蜂窝系统。图2是普通基站小区配置中，多基站天线合作时，其中一组合作基站的示意图。如图1所示，在普通基站小区配置下，基站的所有天线位于小区的中央，从小区的中央向小区中基站服务的中继站或移动台(UE)发送信号。如图1和图2所示，对于处于小区边缘的用户(UE)，参与合作的各天线分别来自于三个基站。现在假设图2中基站1是主服务基站，基站2和基站3是合作基站。当进行合作通信时。如图2所示，主服务基站(图中基站1)必须通过基站间的链路(图中虚线)将需要发送的数据传递给另外两个合作基站(图中基站2和基站3)。另外，如图2所示，主服务基站还必须通过基站间的链路(图中虚线)将如何发送数据(也即如何进行数据传输)的相关信令传递给另外两个合作基站。其中与如何进行数据传输相关的信令包括编码调制方式、预编码矩阵等信令信息。再有，由于在多基站天线合作的情况下，参与合作的天线来自不同的基站(图中所示是三个基站)，因而在多基站天线合作的情况下，需要综合考虑三个基站的多用户负载进行相关的调度。综上所述，在普通的基站小区配置情况下，在多基站天线合作时，需要进行多基站间的数据共享，信令共享和各基站间调度的配合等复杂操作。Fig. 1 shows a multi-base station cellular system under a common base station cell configuration. Fig. 2 is a schematic diagram of a group of cooperating base stations when multiple base station antennas cooperate in a common base station cell configuration. As shown in Figure 1, under the common base station cell configuration, all antennas of the base station are located in the center of the cell, and signals are sent from the center of the cell to the relay station or mobile station (UE) served by the base station in the cell. As shown in FIG. 1 and FIG. 2 , for a user (UE) at the edge of a cell, the antennas participating in the cooperation come from three base stations respectively. Now assume that
以下列出了本发明的参考文献，通过引用将它们并入于此，如同在本说明书中作了详尽描述。References for the present invention are listed below and are hereby incorporated by reference as if fully described in this specification.
1、专利文献1：2008-09-18公开的日本专利申请JP2008219338(A)，标题为“BASE STATION DEVICE，AND CELL CONFIGURATIONMETHOD Inventor：NAKANO MASAYUKI”；1. Patent document 1: Japanese patent application JP2008219338(A) published on September 18, 2008, titled "BASE STATION DEVICE, AND CELL CONFIGURATION METHOD Inventor: NAKANO MASAYUKI";
2、专利文献2：2004-12-02年公开的美国专利US2004242272(A1)，标题为“Antenna system for adjustable sectorization of a wireless cell”；2. Patent Document 2: US Patent US2004242272 (A1) published in 2004-12-02, titled "Antenna system for adjustable sectorization of a wireless cell";
3、专利文献3：1992-10-21公开的日本专利申请JP4297138(A)，标题为“MOBILE COMMUNICATION CELL CONSTRUCTION SYSTEMUSING MULTI ANTENNA AND MOBILE COMMUNICATIONSYSTEM”；3. Patent document 3: Japanese patent application JP4297138(A) published on October 21, 1992, titled "MOBILE COMMUNICATION CELL CONSTRUCTION SYSTEMUSING MULTI ANTENNA AND MOBILE COMMUNICATION SYSTEM";
4、专利文献4：1992-10-13公开的日本专利申请JP4287429(A)，标题为“MOBILE COMMUNICATION CELL CONSTITUTIONMETHOD”；4. Patent document 4: Japanese patent application JP4287429(A) published on October 13, 1992, titled "MOBILE COMMUNICATION CELL CONSTITUTION METHOD";
5、专利文献5：2006-12-21公开的国际专利WO2006133602(A1)，标题为“A KIND OF WIRELESS COMMUNICATION BASE STATIONDYNAMIC DISTRIBUTED ANTENNA SELECTIVE SYSTEM AND THEIMPLEMENTATION METHOD THEREOF”；5. Patent document 5: International patent WO2006133602 (A1) published on December 21, 2006, titled "A KIND OF WIRELESS COMMUNICATION BASE STATION DYNAMIC DISTRIBUTED ANTENNA SELECTIVE SYSTEM AND THEIMPLEMENTATION METHOD THEREOF";
6、专利文献6：1997-08-12公开的US5657374(A)，标题为“Cellularcommunications system with centralized base stations and distributed antennaunits”。6. Patent document 6: US5657374 (A) published on 1997-08-12, titled "Cellular communications system with centralized base stations and distributed antenna units".
发明内容Contents of the invention
本发明的实施方式鉴于现有技术的上述问题作出，用以消除或缓解现有技术中存在的缺点，至少提供一种有益的选择。The embodiments of the present invention are made in view of the above-mentioned problems in the prior art, to eliminate or alleviate the disadvantages in the prior art, and to provide at least one beneficial option.
为了实现上述目的，本申请提供了以下方面。In order to achieve the above objects, the present application provides the following aspects.
方面1、一种通信设备，所述通信设备包括多根天线或多组天线阵列，
所述天线或天线阵列设置在所述通信设备的服务区的边缘位置，从而在所述服务区的边缘与所述服务区内的所述通信设备服务的用户通信。The antenna or antenna array is arranged at an edge of a service area of the communication device, so as to communicate with users served by the communication device within the service area at the edge of the service area.
方面2、根据方面1所述的通信设备，其特征在于，所述通信设备具有两根天线或者两组天线阵列，所述通信设备的服务区被形成为四边形，所述两根天线或者两组天线阵列分别布置在所述四边形的形成对角线的两个顶点处。
方面3、根据方面1所述的通信设备，其特征在于，所述通信设备具有四根天线或者四组天线阵列，所述通信设备的服务区被形成为四边形，所述四根天线或者四组天线阵列分别布置在所述四边形的四个顶点处。
方面4、根据方面1所述的通信设备，其特征在于，所述通信设备具有三根天线，所述通信设备的服务区被形成为六边形，所述三根天线分别布置在所述六边形的相间隔的三个顶点处。
方面5、根据方面1所述的通信设备，其特征在于，所述通信设备的所有天线或天线阵列的发射功率相同。Aspect 5. The communication device according to
方面6、根据方面1所述的通信设备，其特征在于，所述通信设备的所述多根天线或多组天线阵列的发射功率不完全相同。Aspect 6. The communication device according to
方面7、根据方面1所述的通信设备，其特征在于，所述通信设备统一调度所述服务区内的用户。Aspect 7. The communication device according to
方面8、根据方面1所述的通信设备，其特征在于，所述通信设备可以通过所述多根天线或所述多组天线阵列中的一根天线或天线阵列发送或者接收服务区内的用户的信号。Aspect 8. The communication device according to
方面9、根据方面1所述的通信设备，其特征在于，通信设备可以通过多根天线中的两更或更多根天线或所述多组天线阵列中的两组或更多组天线阵列发送或者接收服务区内的用户的信号。Aspect 9. The communication device according to
方面10、根据方面1所述的通信设备，其特征在于，所述通信设备使用不同的物理资源服务不同的用户。Aspect 10. The communication device according to
方面11、根据方面1所述的通信设备，其特征在于，所述通信设备使用同一个物理资源服务两个或者更多个用户。Aspect 11. The communication device according to
方面12、根据方面1所述的通信设备，其特征在于，所述通信设备为基站、包括调度无线业务的客户的调度器的设备、或包括用于产生各天线或天线阵列的预编码矩阵的预编码产生器的设备。Aspect 12. The communication device according to
方面13、一种形成通信设备的服务区的方法，所述通信设备具有多根天线或天线阵列，所述方法包括：Aspect 13. A method of forming a service area for a communication device having multiple antennas or an antenna array, the method comprising:
设置服务区的中心；Set the center of the service area;
在所述服务区的所述中心的周围的多个位置设置所述天线或天线阵列，所述天线或天线阵列能够以所在位置与所述中心的连线为中心，以一定的覆盖角形成覆盖所述所述中心的覆盖区，从而形成所述服务区。The antennas or antenna arrays are arranged at multiple locations around the center of the service area, and the antennas or antenna arrays can be centered on the line connecting the location and the center to form coverage with a certain coverage angle The coverage area of the center, thereby forming the service area.
本发明实施例中所述的“多根”或“多组”包括“两根”或“两组”的情况。The "multiple roots" or "multiple groups" mentioned in the embodiments of the present invention include the situation of "two roots" or "two groups".
本发明的方法能够在基本不改变目前蜂窝通信的基础设施的前提下，避免或减少在不同基站之间的大量的数据共享和大量的信令传输。The method of the present invention can avoid or reduce a large amount of data sharing and a large amount of signaling transmission between different base stations on the premise of basically not changing the current cellular communication infrastructure.
附图说明Description of drawings
图1示出了普通基站小区配置下的多基站蜂窝系统；Figure 1 shows a multi-base station cellular system under a common base station cell configuration;
图2是普通基站小区配置中，多基站天线合作时，其中一组合作基站的示意图；Fig. 2 is a schematic diagram of a group of cooperating base stations when multiple base station antennas cooperate in the common base station cell configuration;
图3示出了依据本发明的基站小区配置下的多基站蜂窝系统；Fig. 3 shows a multi-base station cellular system under the base station cell configuration according to the present invention;
图4示意性示出了其中一个基站小区的配置；Figure 4 schematically shows the configuration of one of the base station cells;
图5示出了基站形成的小区的形状为等边六边形、基站具有四个方向定向的天线、各天线的发射功率相同时的小区配置；Fig. 5 shows that the shape of the cell formed by the base station is an equilateral hexagon, the base station has antennas oriented in four directions, and the cell configuration when the transmit power of each antenna is the same;
图6示出了基站形成的小区的形状为等边六边形、基站具有四个方向定向的天线、各天线的发射功率不完全相同时的小区配置；以及Fig. 6 shows that the shape of the cell formed by the base station is an equilateral hexagon, the base station has antennas oriented in four directions, and the cell configuration when the transmit power of each antenna is not exactly the same; and
图7示出了依据本发明一种实施方式的小区配置方法。Fig. 7 shows a cell configuration method according to an embodiment of the present invention.
具体实施方式Detailed ways
下面参照附图来说明本发明的实施例。在本发明实施方式的一个附图或一种实施方式中描述的元素和特征可以与一个或更多个其它附图或实施方式中示出的元素和特征相结合。应当注意，为了清楚的目的，附图和说明中省略了与本发明无关的、本领域普通技术人员已知的部件和处理的表示和描述。Embodiments of the present invention will be described below with reference to the drawings. Elements and features described in one drawing or one embodiment of an embodiment of the present invention may be combined with elements and features shown in one or more other drawings or embodiments. It should be noted that representation and description of components and processes that are not related to the present invention and known to those of ordinary skill in the art are omitted from the drawings and descriptions for the purpose of clarity.
图3示出了依据本发明的基站小区配置下的多基站蜂窝系统。图4示意性示出了其中一个基站小区的配置。Fig. 3 shows a multi-base station cellular system under a base station cell configuration according to the present invention. Fig. 4 schematically shows the configuration of one base station cell.
如图3和图4所示，在本发明的实施方式中，基站的天线(或天线阵列，有时统称为天线)设置在小区的边缘位置，从而在小区的边缘向小区内基站服务的中继站或移动台发射信号，以及接收来自小区内基站服务的中继站或移动台的信号。As shown in Figure 3 and Figure 4, in the embodiment of the present invention, the antenna (or antenna array, sometimes collectively referred to as antenna) of the base station is set at the edge of the cell, so that the relay station or The mobile station transmits signals and receives signals from relay stations or mobile stations served by the base station in the cell.
将图4与图2相比较，可以看出，对于现有技术中原来需要多点合作进行服务的用户来说，现在仅由一个基站进行服务，从而避免了多点合作所需要的数据共享、信令共享以及调度所带来的各种问题。而对原来不需进行多点合作服务的用户没有实质影响。Comparing Fig. 4 with Fig. 2, it can be seen that in the prior art, users who originally required multi-point cooperation to provide services are now served by only one base station, thus avoiding the data sharing required by multi-point cooperation, Various problems caused by signaling sharing and scheduling. However, there is no substantial impact on users who do not need to perform multi-point cooperative services.
在依据本发明的实施方式中，当移动台从一个基站的小区进入另一个基站的小区时，即可以采用硬切换的方法，也可以采用软切换的方法。In the embodiment according to the present invention, when the mobile station enters the cell of another base station from the cell of one base station, the method of hard handover or soft handover can be adopted.
在FDMA和TDMA系统比如GSM系统中，切换一般是硬切换。当切换发生时，手机总是先释放原基站的信道，然后才能获得新基站分配的信道，是一个″释放-建立″的过程，切换过程发生在两个基站过度区域或扇区之间，两个基站或扇区是一种竞争的关系。In FDMA and TDMA systems such as GSM systems, the handover is generally a hard handover. When handover occurs, the mobile phone always releases the channel of the original base station first, and then can obtain the channel allocated by the new base station, which is a process of "release-establishment". A base station or sector is a competitive relationship.
而所谓软切换，也即在切换过程中，移动用户与原基站和新基站都保持通信链路，只有当移动台在目标基站的小区建立稳定通信后，才断开与原基站的联系。在本发明实施方式中提出的小区和基站配置中，软切换和硬切换都可以支持，并且顺利实施。The so-called soft handover means that during the handover process, the mobile user maintains communication links with both the original base station and the new base station, and only after the mobile station establishes stable communication in the cell of the target base station, does it disconnect from the original base station. In the cell and base station configurations proposed in the embodiments of the present invention, both soft handover and hard handover can be supported and implemented smoothly.
由于在采用本发明的方法进行组网时，不会对现有网络的物理部署模式进行改变，因此，现有的各种无线技术，包括软切换和硬切换技术，都可以进行支持。Since the physical deployment mode of the existing network is not changed when the method of the present invention is used for networking, various existing wireless technologies, including soft handover and hard handover technologies, can all be supported.
虽然在上面的图中，基站形成的小区的形状为等边六边形，并且基站具有三个方向定向的天线，但本发明不限于此。小区的形状可以是不等边的六边形。另外，基站可以具有更多的天线(例如4根、5根或6根天线)，从而4边形，5边形，6边形等形状的小区，其中天线(天线阵列)分别设置在形成的小区的各顶点处。另外，基站的各天线的发射功率可以相同也可以不相同。图5示出了基站形成的小区的形状为等边六边形、基站具有四个方向定向的天线、各天线的发射功率相同时的天线布局。图6示出了基站形成的小区的形状为等边六边形、基站具有四个方向定向的天线、各天线的发射功率不完全相同时的天线布局。如图6所示，天线2和3的发射功率可以比天线1的小些，天线4的发射功率可以比天线2和3的发射功率小些。Although in the above figure, the shape of the cell formed by the base station is an equilateral hexagon, and the base station has antennas oriented in three directions, the present invention is not limited thereto. The shape of the cell can be a scalene hexagon. In addition, the base station can have more antennas (for example, 4, 5 or 6 antennas), so as to form a quadrangular, pentagonal, hexagonal and other shaped cells, wherein the antennas (antenna arrays) are respectively arranged on the formed vertices of the area. In addition, the transmit powers of the antennas of the base station may be the same or different. FIG. 5 shows the antenna layout when the shape of the cell formed by the base station is an equilateral hexagon, the base station has antennas oriented in four directions, and the transmitting power of each antenna is the same. FIG. 6 shows the antenna layout when the shape of the cell formed by the base station is an equilateral hexagon, the base station has antennas oriented in four directions, and the transmitting power of each antenna is not completely the same. As shown in FIG. 6 , the transmitting power of
此外，本发明的小区可以构建为三角形、矩形、菱形、五边形、八角形等形状，天线(天线阵列)在小区的边缘。例如，当小区的形状为菱形或矩形时，天线(天线阵列)可以处于小区的较短对角线所连接的顶点处，也可以处于小区的较长对角线所连接的顶点处。天线(天线阵列)也可以布置在四边形小区的四个顶点处。In addition, the cells of the present invention can be constructed in shapes such as triangles, rectangles, rhombuses, pentagons, and octagons, and the antennas (antenna arrays) are at the edges of the cells. For example, when the shape of the cell is rhombus or rectangle, the antenna (antenna array) can be located at the vertices connected by the shorter diagonals of the cell, or at the vertices connected by the longer diagonals of the cell. Antennas (antenna arrays) may also be arranged at the four vertices of quadrilateral cells.
在本发明的实施例中，该小区内的用户被该基站统一调度。基站可以通过多根天线中的一个天线(天线阵列)向小区内的移动台发送信号，或接收来自小区内的移动台的信号。In the embodiment of the present invention, the users in the cell are uniformly scheduled by the base station. The base station can transmit signals to and receive signals from mobile stations in the cell through one antenna (antenna array) among the multiple antennas.
比如当移动台距离某一个天线(天线阵列)较近，而距离另外的天线(天线阵列)较远，从而移动台接收到的某一个天线(天线阵列)信号强度较高(例如高于一预定阈值)，而另外的天线(天线阵列)的信号都很低(例如低于另一预定阈值)，以至于可以忽略干扰时，可以只利用该信号强度较高的天线服务该移动台。For example, when the mobile station is closer to a certain antenna (antenna array) and farther away from another antenna (antenna array), the signal strength of a certain antenna (antenna array) received by the mobile station is relatively high (for example, higher than a predetermined threshold), and the signals of other antennas (antenna arrays) are all low (for example, lower than another predetermined threshold), so that the interference can be ignored, only the antenna with higher signal strength can be used to serve the mobile station.
基站也可以通过两个或者更多根天线向小区内的移动台发送信号，或接收来自小区内的移动台的信号。The base station can also send signals to or receive signals from mobile stations in the cell through two or more antennas.
比如当移动台距离所有天线(天线阵列)都较远，也即处于小区中央的位置，从而移动台接收到的天线(天线阵列)信号强度都较低，并且各天线信号干扰也较大，此时，可以利用所有的天线(天线阵列)合作服务该移动台。For example, when the mobile station is far away from all antennas (antenna arrays), that is, it is located in the center of the cell, so the signal strength of the antennas (antenna arrays) received by the mobile station is low, and the signal interference of each antenna is also relatively large. When , all antennas (antenna arrays) can be utilized to cooperatively serve the mobile station.
在这种合作通信的情况下，对于基站到用户台的通信，每一个发射天线或者每一组天线阵列都发射对该移动台有用的信号，因此，一方面，移动台收到信号的功率是各天线阵列信号的功率和，从而移动台所接收信号的功率会增大，另一方面，由于来自各天线阵列的信号都是有用信号，各阵列天线信号之间的干扰也大大减小。总之，有用信号功率增大，各天线之间的干扰减小，从而提高了通信的可靠性。In the case of this cooperative communication, for the communication from the base station to the subscriber station, each transmitting antenna or each group of antenna arrays transmits a signal useful to the mobile station, so, on the one hand, the power of the signal received by the mobile station is The power of each antenna array signal is summed, so that the power of the signal received by the mobile station will increase. On the other hand, since the signals from each antenna array are useful signals, the interference between the array antenna signals is also greatly reduced. In a word, the useful signal power increases, and the interference between antennas decreases, thereby improving the reliability of communication.
在这种合作通信的情况下，对于移动台到基站的通信，移动台发射的信号每一个接收天线或者每一组天线阵列都能够接收该移动台的信号，并将各天线阵列接收到的信号进行合并，从而提高接收信号的功率，也提高了通信的可靠性。In the case of this kind of cooperative communication, for the communication between the mobile station and the base station, each receiving antenna or each group of antenna arrays of the signal transmitted by the mobile station can receive the signal of the mobile station, and the signal received by each antenna array Combining them increases the power of the received signal and improves the reliability of the communication.
在同一时刻，基站可以在不同的物理资源服务不同的用户。比如小区的激活用户数较少时，系统可以为每一个激活用户调度不同的物理资源，此时，每一个物理资源可以服务一个用户。At the same time, the base station can serve different users on different physical resources. For example, when the number of active users in a cell is small, the system can schedule different physical resources for each active user, and at this time, each physical resource can serve one user.
另外，在同一时刻，基站可以以相同的物理资源服务两个或者更多个用户。比如小区的激活用户数较多，或者小区的用户吞吐量要求较大时，系统可以以相同物理资源调度不同的用户，从而提高系统的吞吐量。In addition, at the same moment, the base station can serve two or more users with the same physical resources. For example, when the number of active users in the cell is large, or the user throughput requirement of the cell is relatively large, the system can schedule different users with the same physical resource, thereby improving the system throughput.
图7示意性地示出了依据本发明一种实施方式的小区配置方法。如图7所示，首先，在步骤7001，确定小区中心；然后，在步骤7002，在所述小区中心的周围的多个位置设置天线，所述天线能够以所在位置与所述小区中心的连线为中心，以一定的覆盖角形成覆盖所述所述小区中心的覆盖区，从而利用这些天线形成所述小区。例如，在图4所示的等边六边形的小区中，各天线的覆盖角为大约120度。Fig. 7 schematically shows a cell configuration method according to an embodiment of the present invention. As shown in Figure 7, first, in
应该注意，虽然在上面的描述中，以基站作为多天线无线设备的示例，但本发明不限于基站。本发明例如也可以应用于与基站进行通信的具有多根天线或多组天线阵列的中继站、包括多根天线或多组天线阵列及与所述多根天线或多组天线阵列相连的用以进行天线信号处理的中心单元的通信设备。所述中心单元例如调度无线服务的用户的调度器、用以产生每个天线阵列的预编码矩阵的预编码产生器等。It should be noted that although the base station is used as an example of a multi-antenna wireless device in the above description, the present invention is not limited to the base station. For example, the present invention can also be applied to a relay station having multiple antennas or multiple antenna arrays for communicating with a base station, including multiple antennas or multiple antenna arrays and a device connected to the multiple antennas or multiple antenna arrays for performing Antenna signal processing central unit of communication equipment. The central unit is, for example, a scheduler for scheduling users of wireless services, a precoding generator for generating a precoding matrix for each antenna array, and the like.
在所述的说明和附图中，详细公开了本发明的特定实施方式，指明了本发明的原理可以被采用的方式。应该理解，本发明在范围上并不因而受到限制。在所附权利要求的精神和条款的范围内，本发明包括许多改变、修改和等同。In the description and drawings, specific embodiments of the invention are disclosed in detail, indicating the manner in which the principles of the invention may be employed. It should be understood that the invention is not thereby limited in scope. The invention embraces many changes, modifications and equivalents within the spirit and scope of the appended claims.
针对一种实施方式描述和/或示出的特征可以以相同或类似的方式在一个或更多个其它实施方式中使用，与其它实施方式中的特征相组合，或替代其它实施方式中的特征。Features described and/or illustrated with respect to one embodiment can be used in the same or similar manner in one or more other embodiments, in combination with, or instead of features in other embodiments .
应该强调，术语“包括/包含”在本文使用时指特征、要素、步骤或组件的存在，但并不排除一个或更多个其它特征、要素、步骤或组件的存在或附加。It should be emphasized that the term "comprising/comprising" when used herein refers to the presence of a feature, element, step or component, but does not exclude the presence or addition of one or more other features, elements, steps or components.
在前面的说明书中参照特定实施例描述了本发明。然而本领域的普通技术人员理解，在不偏离如权利要求书限定的本发明的范围的前提下可以进行各种修改和改变。In the foregoing specification, the invention has been described with reference to specific embodiments. However, those of ordinary skill in the art understand that various modifications and changes can be made without departing from the scope of the present invention as defined in the claims.
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