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1. 发明申请

WO2008014897A1 METHOD AND SYSTEM FOR RADIO RESOURCE MANAGEMENT IN GERAN/UMTS NETWORKS, RELATED NETWORK AND COMPUTER PROGRAM PRODUCT 审中-公开
标题翻译： GERAN / UMTS网络，相关网络和计算机程序产品中的无线电资源管理方法与系统
公开(公告)号：WO2008014897A1
公开(公告)日：2008-02-07
申请号：PCT/EP2007/006435
申请日：2007-07-19
申请人： SIEMENS S.P.A. , MASSERONI, Carlo , TRIVISONNO, Riccardo
发明人： MASSERONI, Carlo , TRIVISONNO, Riccardo
IPC分类号： H04L12/56 , H04Q7/20
CPC分类号： H04W28/24 , H04L47/10 , H04L47/14 , H04L47/2416 , H04L47/283 , H04W28/10
摘要： A method of managing radio resources for providing real time services such as conversational and streaming services in a GERAN/UTRAN network. The services are provided by means of application data packets that are exposed to delay in propagating over said network, The delay exhibits jitter, and the radio resources of the network are managed to maintain the delay jitter experienced by the application packets that maximum tolerated value. Preferably, the Quality of Service profiles of the real time services in question are supplemented by means of a parameter (MAJ) representative of the maximum tolerated jitter for the application packets delay.
摘要翻译：管理无线电资源的方法，用于在GERAN / UTRAN网络中提供诸如对话和流服务之类的实时服务。这些服务通过在所述网络上传播的延迟暴露的应用数据分组提供。延迟呈现抖动，并且管理网络的无线电资源以维持应用分组遇到的最大容忍值的延迟抖动。优选地，通过表示应用分组延迟的最大容忍抖动的参数（MAJ）来补充所讨论的实时服务的服务质量简档。

2. 发明申请

WO2008014896A1 CENTRALIZED RADIO RESOURCE ALLOCATION IN COMMUNICATION NETWORKS 审中-公开
标题翻译：通信网络中的无线电资源分配
公开(公告)号：WO2008014896A1
公开(公告)日：2008-02-07
申请号：PCT/EP2007/006434
申请日：2007-07-19
申请人： SIEMENS S.P.A. , BALLARINI, Enrico , TORTORA, Daniele
发明人： BALLARINI, Enrico , TORTORA, Daniele
IPC分类号： H04Q7/36
CPC分类号： H04W8/02 , H04W28/16 , H04W88/08
摘要： A method for centralized radio resource allocation in a communication network including a Network Control and Management System (NCMS) and at least one Base Station Cluster (BS Cluster) having a set of Base Station Entities (100) to which respective permutation zones and radio resources are to be allocated. The Network Control and Management System (NCMS) controls the allocation of permutation zones and radio resources to the Base Station Entities (100) by aligning the permutation zones of different Base Station Entities (100) and by determining the radio resources to be used within each permutation zone. Preferably, the Network Control and Management System (NCMS) issues towards the Base Station Entities (100) a first message (102) requesting information on the radio resources available including specific information items for each permutation zone. The Base Station Entities (100) return towards the Network Control and Management System (NCMS) a second message (104) including the information requested in said first message (102), and the Network Control and Management System (NCMS) issues towards the Base Station Entities (100) a third message (106) including commands to align the permutation zones of different Base Station Entities (100) to determine the radio resources to be used within each permutation zone.
摘要翻译：一种用于在包括网络控制和管理系统（NCMS）的通信网络和至少一个具有一组基站实体（100）的基站群集（BS群集）中的集中式无线资源分配的方法，相应的置换区和无线电资源将被分配。网络控制和管理系统（NCMS）通过对齐不同基站实体（100）的置换区域并且通过确定每个不同的基站实体（100）内的无线电资源来控制向基站实体（100）分配置换区和无线电资源置换区。优选地，网络控制和管理系统（NCMS）针对基站实体（100）向第一消息（102）发出请求关于可用无线电资源的信息，包括每个置换区的特定信息项。基站实体（100）向网络控制和管理系统（NCMS）返回包括在所述第一消息（102）中请求的信息的第二消息（104），并且向基站发送网络控制和管理系统（NCMS）站实体（100）包括用于对准不同基站实体（100）的置换区域的命令的第三消息（106），以确定在每个排列区域内要使用的无线电资源。

3. 发明申请

WO2007144179A1 METHOD FOR PACKET CLASSIFICATION BASED ON THE PROTOCOL TYPE AND ON PRIORITIES 审中-公开
标题翻译：基于协议类型和优先级的分组分类方法
公开(公告)号：WO2007144179A1
公开(公告)日：2007-12-21
申请号：PCT/EP2007/005264
申请日：2007-06-14
申请人： SIEMENS S.P.A. , CAVALLI, Giulio , SANTACESARIA, Claudio
发明人： CAVALLI, Giulio , SANTACESARIA, Claudio
IPC分类号： H04L12/56
CPC分类号： H04L47/10
摘要： External packets entering a transmitting entity (SS1...SSn, BS) of a broadband wireless access system are forwarded to a receiving entity onto MAC layer connections (CID1...CID3) at the air interface between such entities in a manner depending on the result of a packet classification (103, 106) performed by using a set of classification rules identified by a rule index and associated with a priority index determining the order of application of different rules to packets relating to a same service. The classification rules (100) include both classification rules specific for data communication protocols and containing one or more protocol-specific parameters to be matched by corresponding fields in a packet being classified, and a pass-through classification rule only containing a priority index and a rule index, but no protocol-specific matching parameter, said pass through classification rule being applied to packet having matched no protocol-specific classification rule.
摘要翻译：进入宽带无线接入系统的发送实体（SS1 ... SSn，BS）的外部分组在这样的实体之间的空中接口被转发到接收实体到MAC层连接（CID1 ... CID3），取决于通过使用由规则索引标识并与确定不同规则的应用顺序的优先级索引相关联的一组分类规则来执行分组分类（103,106）的结果，该优先级索引确定与相同服务相关的分组的顺序。分类规则（100）包括特定于数据通信协议的分类规则，并且包含要被分类的分组中的相应字段要匹配的一个或多个协议特定参数，以及仅包含优先级索引和规则索引，但没有协议特定匹配参数，所述通过分类规则被应用于没有协议特定分类规则的分组。

4. 发明申请

WO2006066889A1 METHOD AND SYSTEM TO MINIMIZE THE SWITCHING DELAY BETWEEN TWO RTP MULTIMEDIA STREAMING SESSIONS 审中-公开
标题翻译：最小化两个RTP多媒体流媒体会话之间的切换延迟的方法和系统
公开(公告)号：WO2006066889A1
公开(公告)日：2006-06-29
申请号：PCT/EP2005/013753
申请日：2005-12-21
申请人： SIEMENS S.P.A. , BACCHI, Alessandro , CAVALERA, Claudio , VANZULLI, Marco , ZERBINI, Massimo
发明人： BACCHI, Alessandro , CAVALERA, Claudio , VANZULLI, Marco , ZERBINI, Massimo
IPC分类号： H04L29/06
CPC分类号： H04L65/605 , H04L29/06027 , H04L65/608
摘要： A communication system includes a pool of multimedia players (MP) in communication with a multimedia server (MS), both the players and the server operating according to the IETF RTSP protocol independently of the used transport network. A new network element called streaming switching processor (SSP) is located between the players and the video-server/video-encoders (ME) for executing the switching of the streaming contents upon a command (NOTIFY) received from the player (MP). Alternatively, the SSP also embodies the funtionality of video server and video encoders. The SSP includes at least M buffers (ch-1, …,ch-M) for an equal number of independent streaming contents kept always on. This architecture enables the SSP while is processing the switching message (NOTIFY) to forward in parallel the switched streaming contents to the player. As a consequence, the player receives the new streaming contents in the context of the first RTSP session. The Switching Delay Time SDT is drastically reduced operating in this way because some typical delays overlap and others are contemporary to SDT. The multimedia contents can be derived from encoded real-time signals, such as satellite TV channels, or registered contents taken from archives. The player is programmed to flush the video/audio MPEG-4 frames out of its receiving buffer and fill up the emptied space with the frames of the relevant auxiliary buffer clocked faster. The further expedient to align the sending in correspondence of a Key-frame followed by a “secure” filled length prevents the artefacts on the displayed image. The switching message is sent by the player either on UDP or TCP; it includes at least the identifier of the request channel, the buffer status inside the Player. Alternatively, a new RTSP message is created including in its body these information fields described according to the RTSP presentation rules.
摘要翻译：通信系统包括与多媒体服务器（MS）通信的多媒体播放器（MP）池，玩家和服务器都根据IETF RTSP协议独立于所使用的传输网络进行操作。称为流交换处理器（SSP）的新的网络元件位于播放器和视频服务器/视频编码器（ME）之间，用于在从播放器（MP）接收到的命令（NOTIFY）上执行流式内容的切换。或者，SSP还体现了视频服务器和视频编码器的功能。 SSP至少包含M个缓冲器（ch-1，ch-M），用于保持始终处于开启状态的相等数目的独立流内容。该架构使得SSP在处理切换消息（NOTIFY）的同时将切换的流内容转发到播放器时。因此，播放器在第一RTSP会话的上下文中接收新的流内容。切换延迟时间SDT以这种方式大大减少操作，因为一些典型的延迟重叠，而其他延迟时间与SDT是现代的。多媒体内容可以从编码的实时信号（例如卫星电视频道）或从归档取得的注册内容导出。播放器被编程为将视频/音频MPEG-4帧从其接收缓冲器中刷新并且填充空闲空间，相关辅助缓冲器的帧的时钟速度更快。对应于按键框后跟“安全”填充长度的发送的进一步方便可防止显示图像上的伪影。切换消息由播放器在UDP或TCP上发送; 它至少包括请求通道的标识符，Player内的缓冲区状态。或者，创建一个新的RTSP消息，在其主体中包括根据RTSP呈现规则描述的这些信息字段。

5. 发明申请

WO2008037344A3 METHOD AND SYSTEM FOR DEPLOYING AN APPLICATION 审中-公开
公开(公告)号：WO2008037344A3
公开(公告)日：2008-04-03
申请号：PCT/EP2007/007862
申请日：2007-09-10
申请人： SIEMENS S.P.A. , MILITARU, Adrian , TONIATTI, Tiziana
发明人： MILITARU, Adrian , TONIATTI, Tiziana
IPC分类号： G06F9/40
摘要： Unfortunately, known application deployment methods require the download of entire applications, implying a cost in term of network capacity resources and their bandwidth utilization. The method and system for deploying an application on a host device (MT1, FT2, AS1, AS2) according to the present invention, comprise: a) providing the host device (MT1, FT2, AS1, AS2) with a functionality for running an application definable via a state machine (SM); b) providing the host device (MT1, FT2, AS1, AS2) with functional modules (FM1, FM2,.. ); each functional module (FM1, FM2,.. ) comprising a set of executable methods; and c) deploying the application on the host device (MT1, FT2, AS1, AS2) by storing, within the host device (MT1, FT2, AS1, AS2), tuples specifying the state machine (SM) defining the application; wherein a tuple defines an event (E1, E2,.. ) generated transition from an initial state (S1, S2,.. ) to an arrival state (S1, S2,.. ) and a subset of the executable methods.

6. 发明申请

WO2008025549A1 METHOD OF AND DEVICE FOR AIR TIME MANAGEMENT IN MULTI-ACCESS CHANNEL NETWORKS 审中-公开
标题翻译：多通道通道网络中空时管理的方法与装置
公开(公告)号：WO2008025549A1
公开(公告)日：2008-03-06
申请号：PCT/EP2007/007585
申请日：2007-08-30
申请人： SIEMENS S.P.A. , CAVALLI, Giulio , SANTACESARIA, Claudio , TOMASETTA, Annalisa
发明人： CAVALLI, Giulio , SANTACESARIA, Claudio , TOMASETTA, Annalisa
IPC分类号： H04L12/56
CPC分类号： H04W72/085 , H04L1/0003 , H04L1/0006 , H04L1/0017 , H04L47/10 , H04L49/90 , H04W72/10
摘要： An air time management method for multi-access channel networks is provided, suitable for use when the terminal stations (SS1...SSn) operate with adaptive modulation. A specific modulation (default modulation) is defined for each terminal station (SS1...SSn) in a planning phase. During operation, when bandwidth is to be allotted to an uplink or downlink communication (101), the base station (BS) checks (102) whether the concerned terminal station (SS1...SSn) is operating with a modulation more robust (i. e. less efficient) than the default one. In the affirmative, the base station allots to the communication a time slot whose duration is as needed for transmitting all data with the default modulation (105). In the negative, the base station (BS) allots the communication a time slot whose duration is as needed for transmitting all data with the current modulation (103).
摘要翻译：提供了一种用于多接入信道网络的时空管理方法，适用于当终端站（SS1 ... SSn）以自适应调制方式工作时使用。在规划阶段为每个终端站（SS1 ... SSn）定义特定调制（默认调制）。在操作期间，当将带宽分配给上行链路或下行链路通信（101）时，基站（BS）检查（102）有关的终端站（SS1 ... SSn）是否以更强的调制（即效率较低）比默认值。肯定地，基站向通信分配其持续时间是根据传输具有默认调制（105）的所有数据所需的时隙。否则，基站（BS）根据当前调制（103）发送所有数据所需的持续时间来分配通信。

7. 发明申请

WO2008025502A1 METHOD TO BALANCE TRAFFIC LOAD BETWEEN NEARBY LTE/WIMAX CELLS GROUPED INTO INNER AND BORDER CONSTELLATIONS 审中-公开
标题翻译：平衡分组进入内部和边界信号的近端LTE / WIMAX细胞之间的交通负载的方法
公开(公告)号：WO2008025502A1
公开(公告)日：2008-03-06
申请号：PCT/EP2007/007489
申请日：2007-08-27
申请人： SIEMENS S.P.A. , CAVALLI, Simona , ZIZZA, Fabrizio
发明人： CAVALLI, Simona , ZIZZA, Fabrizio
IPC分类号： H04Q7/38
CPC分类号： H04W36/22 , H04W28/08
摘要： The invention discloses a method for balancing traffic load between nearby cells of a mobile radio communication network, e.g. WiMAX Forum stage 2, 3 specifications or 3GPP UMTS Long Term Evolution (LTE), where cells are configured as peer network nodes interconnected by a transport network, e.g. an IP backbone preferably with multicast capability. In a preliminary off-line step a) nearby cells are grouped into inner and border constellations. The first ones include group of nearby cells, not necessarily hosted by the same base station site, and belonging to a well defined geographic area, which are characterised by a common target utilisation and by a common guard threshold for traffic load measured value. The second ones include the set of cells which are at the border between two inner constellations; target utilisation and guard threshold are not defined, instead and cells actually belong to more than one inner constellation and have visibility over their target utilisation and guard threshold parameters. Successively, in each constellation are executed the following on-line steps: b) among all cells are exchanged their actual and residual traffic load status; c) all cells calculate the average actual traffic load into the constellation and compare it to their actual traffic load; d) cells with actual traffic load over the average book unreserved adjacent cells with the lowest actual traffic load and the highest residual traffic load as targets for traffic offloading; e) each booking cell command a fraction of its mobile terminals to execute handovers towards respective target cells accepting to be reserved; f) the reserved cells are released. Border constellation cells are enabled to trigger traffic offloading only when the average actual traffic load of the neighbour constellation is lower than its target utilisation parameter.
摘要翻译：本发明公开了一种用于平衡移动无线电通信网络的附近小区之间的业务负载的方法，例如， WiMAX论坛第2,3阶段规范或3GPP UMTS长期演进（LTE），其中小区被配置为通过传输网络互连的对等网络节点，例如， IP骨干，优选具有多播能力。在初步的离线步骤a）附近的细胞被分组到内部和边界星座。第一个包括一组附近的小区，不一定由相同的基站站点承载，并且属于明确定义的地理区域，其特征在于通用目标利用率和通信负载测量值的公共保护阈值。第二个包括在两个内部星座之间的边界处的一组单元格; 没有定义目标利用率和保护阈值，而是细胞实际上属于多个内部星座，并且可以看到其目标利用率和保护阈值参数。接下来，在每个星座中执行以下在线步骤：b）在所有小区之间交换其实际和剩余业务负载状态; c）所有单元格计算星座中的平均实际流量负载并将其与其实际流量负载进行比较; d）具有实际业务负载的小区，具有最低实际业务负载和最高剩余业务负载作为用于流量卸载的目标的平均预订的未预留相邻小区的业务负载; e）每个预订单元命令其一部分移动终端执行切换到接受保留的各个目标小区; f）保留的单元被释放。只有当邻居星座的平均实际流量负载低于其目标利用率参数时，才允许边界星座单元触发流量卸载。

8. 发明申请

WO2007118703A1 METHOD TO REDUCE THE TRANSMISSION LATENCY IN GSM/EDGE DELAY-SENSITIVE APPLICATIONS 审中-公开
标题翻译：在GSM / EDGE延迟敏感应用中减少传输延迟的方法
公开(公告)号：WO2007118703A1
公开(公告)日：2007-10-25
申请号：PCT/EP2007/003362
申请日：2007-04-17
申请人： SIEMENS S.P.A. , MASSERONI, Carlo , PAROLARI, Sergio , TRIVISONNO, Riccardo
发明人： MASSERONI, Carlo , PAROLARI, Sergio , TRIVISONNO, Riccardo
IPC分类号： H04L12/56
CPC分类号： H04W28/06 , H04L47/10 , H04L47/14 , H04L47/27 , H04L47/36 , H04W72/04 , H04W76/20 , H04W84/04
摘要： Real-time media or multimedia services in 3GPP GSM/EDGE-compliant mobile radio networks call for reducing the actual latency of transmissions. Resources are assigned by the network to set up or reconfigure a TBF associated to the uplink/downlink transmission of radio blocks from/to an MS. A 5-bit "Coding" field is configured in the header of the involved RLC/MAC messages to select the transmitting/receiving window size. An additional signalling bit, also called scaling bit, is asserted/negated according to two opportunities offered by the new MAC protocol to properly select the window size. Thanks to the introduction of the scaling bit a subdivision of the time windows for type of services is made possible. Non real-time services, e.g. file transfer, avail of standard window sizes for MSs with multistat capability, as reported in 3GPP TS 44.060, V7.3.0 (2006-01 ), Release 7, subclause 9.1.9, for EGPRS TBFs. Delay-sensitive services, e.g. media or multimedia real-time transmissions, avail of new window sizes with scaled down values remapped to start from 1 to (maximum) 64 RLC/MAC blocks. The scaling bit is asserted or negated by BSC accordingly. Both peer entities comprised in a TBF are receiving the RLC/MAC messages with the proper setting of the scaling bit and the 5-bit coding IF; these entities decode the scaling bit and behave accordingly. The behaviour consists of either assuming the standard window size or scaled window size addressed by the same predetermined 5-bit "coding" information element.
摘要翻译：符合3GPP GSM / EDGE标准的移动无线网络中的实时媒体或多媒体业务需要减少传输的实际延迟。资源由网络分配，以建立或重新配置与MS的无线电块的上行链路/下行链路传输相关联的TBF。在所涉及的RLC / MAC消息的报头中配置5位“编码”字段，以选择发送/接收窗口大小。根据新的MAC协议提供的两个机会来正确地选择窗口大小，另外一个信号位（也称为缩放比特）被断言/否定。由于引入缩放比特，可以对服务类型的时间窗口进行细分。非实时服务，例如文件传输，对于具有多状态功能的MS的标准窗口大小，如3GPP TS 44.060，V7.3.0（2006-01），版本7，9.1.9中针对EGPRS TBF所报告的。延迟敏感服务，例如媒体或多媒体实时传输，利用重新映射为从1到（最大）64个RLC / MAC块的缩放值的新窗口大小。缩放位由BSC确定或否定。包括在TBF中的两个对等实体正在接收具有缩放位和5位编码IF的适当设置的RLC / MAC消息; 这些实体解码缩放位并相应地进行操作。该行为包括假设由相同的预定的5位“编码”信息元素寻址的标准窗口大小或缩放的窗口大小。

9. 发明申请

WO2007112900A1 METHOD AND DEVICE FOR GENERATING ELECTROMAGNETIC FIELDS 审中-公开
标题翻译：用于产生电磁场的方法和装置
公开(公告)号：WO2007112900A1
公开(公告)日：2007-10-11
申请号：PCT/EP2007/002738
申请日：2007-03-28
申请人： SIEMENS S.P.A. , BUOLI, Carlo , MORGIA, Fabio
发明人： BUOLI, Carlo , MORGIA, Fabio
IPC分类号： H01Q19/09 , H01Q1/40 , H01Q3/44 , H01Q9/04 , H01Q9/27
CPC分类号： H01Q19/09 , H01Q1/40 , H01Q3/44 , H01Q9/0407 , H01Q9/27
摘要： A device is disclosed for generating an electromagnetic field (E, H) having the electrical field vector (E) or the magnetic field vector (H) concentrated around a target axis (z) . The device includes an electromagnetic field source (16, 18; 21) for inducing a near-field configuration of the electromagnetic field having flux lines (F) of the electrical field vector (E) or the magnetic field vector (H) that have components both parallel to the target axis (z) and orthogonal thereto (x, y) . A suppressor element (22; 22' ) , such as e.g. a ferrite or a dielectric disc is coupled to the field source (16, 18; 21) for suppressing the components of the flux lines (F) of the electrical field vector (E) or the magnetic field vector (H) that extend orthogonal to the target axis (z) .
摘要翻译：公开了一种用于产生具有围绕目标轴线（z）集中的电场矢量（E）或磁场矢量（H）的电磁场（E，H）的装置。该装置包括用于感应具有电场矢量（E）或磁场矢量（H）的磁通线（F）的电磁场的近场配置的电磁场源（16,18; 21）两者平行于目标轴线（z）并与其正交（x，y）。抑制元件（22; 22'），例如铁氧体或电介质盘耦合到场源（16,18; 21），用于抑制电场矢量（E）的磁通线（F）的分量或垂直于目标轴（z）。

10. 发明申请

WO2007093384A1 METHOD FOR OPTIMIZING THE SPACING BETWEEN RECEIVING ANTENNAS OF AN ARRAY USABLE FOR COUNTERACTING BOTH INTERFERENCE AND FADING IN CELLULAR SYSTEMS 审中-公开
标题翻译：用于优化用于计算两个干扰和细胞系统衰减的阵列的接收天线之间的间距的方法
公开(公告)号：WO2007093384A1
公开(公告)日：2007-08-23
申请号：PCT/EP2007/001238
申请日：2007-02-13
申请人： SIEMENS S.P.A. , NICOLI, Monica , SAMPIETRO, Luigi , SANTACESARIA, Claudio , SIMEONE, Osvaldo , SPAGNOLINI, Umberto
发明人： NICOLI, Monica , SAMPIETRO, Luigi , SANTACESARIA, Claudio , SIMEONE, Osvaldo , SPAGNOLINI, Umberto
IPC分类号： H01Q21/08 , H01Q21/22
CPC分类号： H01Q1/246 , H01Q21/08 , H01Q21/22
摘要： The spacing between adjacent receiving antennas of an ULA located in a base station of a cellular communication system is optimized to both the channel and the interference space-time multipath. The spacing is lager than the canonical λ/2 for introducing a certain degree of angular equivocation aimed to see the interferers (all or a certain number depending on the degree of freedom of the directivity function) as they were grouped together along an unique direction. In an ideal case of fixed interferers with null angular power spread, a given cellular planning and known aperture of the array, the optimal spacing Δ opt between adjacent antennas is directly calculable in closed mathematical form in function of the equal angular separation Δ θ between the DOAs of the interferers. When the restrictive hypotheses are neglected, the optimal spacing Δ opt is calculable as the spacing that minimizes the spread between the N I wave numbers associated to the barycentric DOAs of the N I interfering cells. Moreover closed form solution can be dealt with on condition that N I interfering cells (with one broadside interfering cell) are considered; said angular separation between the interferers is assumed as being the average Δ θ B among adjacent angular separations between barycentric DOAs weighted by the respective barycentric received power. Assuming a multipath channel with an arbitrary number of paths N p , the i th barycentric DOA is calculated by executing a weighted average extended to the N p x S directions of arrival of the N p paths by the S points of a grid indicative of the positions spanned by the i th interfering station inside its cell, weighting each DOA by the power received on that path. In a SIMO scenario with square cell planning according to the fixed or mobile WiMAX IEEE 802.16d802.16-2004/e, the value A opt = 1.8λ is found as an optimum trade-off between beamforming and diversity (fig.5).
摘要翻译：位于蜂窝通信系统的基站中的ULA的相邻接收天线之间的间隔被优化为信道和干扰时空多径。这个间距比用于引入某种程度的角度倾向的目的是为了观察干扰源（全部或一定数量，取决于方向性函数的自由度），因为它们沿独特的方向被分组在一起是比较大的。在具有零角度功率扩展的固定干扰源的理想情况下，给定的蜂窝规划和阵列的已知孔径，相邻天线之间的最佳间隔可以以闭合数学形式直接计算，等角分离？在干扰源的DOA之间。当限制性假设被忽略时，最佳间隔可以被计算为最小化与N'的重心DOAs相关联的N I个波数之间的扩展的间隔，干扰细胞。此外，可以在考虑N 1干扰细胞（具有一个宽边干扰细胞）的条件下处理封闭形式的溶液; 所述干扰源之间的角度间隔被认为是平均值

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