-
公开(公告)号：US20100034315A1
公开(公告)日：2010-02-11
申请号：US12511236
申请日：2009-07-29
CPC分类号： H04W52/146 , H04W52/12 , H04W52/16 , H04W52/247 , H04W52/248
摘要： Techniques for performing power control of multiple channels sent using multiple radio technologies are described. The transmit power of a reference channel, sent using a first radio technology (e.g., CDMA), is adjusted to achieve a target level of performance (e.g., a target erasure rate) for the reference channel. The transmit power of a data channel, sent using a second radio technology (e.g., OFDMA), is adjusted based on the transmit power of the reference channel. In one power control scheme, a reference power spectral density (PSD) level is determined based on the transmit power of the reference channel. A transmit PSD delta for the data channel is adjusted based on interference estimates. A transmit PSD of the data channel is determined based on the reference PSD level and the transmit PSD delta. The transmit power of the data channel is then set to achieve the transmit PSD for the data channel.
-
公开(公告)号：US08520745B2
公开(公告)日：2013-08-27
申请号：US12511234
申请日：2009-07-29
IPC分类号： H04L27/00
CPC分类号： H04W52/146 , H04W52/12 , H04W52/16 , H04W52/247 , H04W52/248
摘要： Techniques for performing power control of multiple channels sent using multiple radio technologies are described. The transmit power of a reference channel, sent using a first radio technology (e.g., CDMA), is adjusted to achieve a target level of performance (e.g., a target erasure rate) for the reference channel. The transmit power of a data channel, sent using a second radio technology (e.g., OFDMA), is adjusted based on the transmit power of the reference channel. In one power control scheme, a reference power spectral density (PSD) level is determined based on the transmit power of the reference channel. A transmit PSD delta for the data channel is adjusted based on interference estimates. A transmit PSD of the data channel is determined based on the reference PSD level and the transmit PSD delta. The transmit power of the data channel is then set to achieve the transmit PSD for the data channel.
摘要翻译： 描述了使用多种无线电技术发送的多信道的功率控制技术。 调整使用第一无线电技术（例如，CDMA）发送的参考信道的发射功率，以实现用于参考信道的目标性能水平（例如，目标擦除率）。 使用第二无线电技术（例如，OFDMA）发送的数据信道的发射功率基于参考信道的发射功率进行调整。 在一个功率控制方案中，基于参考信道的发射功率来确定参考功率谱密度（PSD）电平。 基于干扰估计来调整数据信道的传输PSD增量。 基于参考PSD电平和发送PSD增量来确定数据信道的发送PSD。 然后设置数据信道的发射功率以实现数据信道的发射PSD。
-
公开(公告)号：US07965789B2
公开(公告)日：2011-06-21
申请号：US11507781
申请日：2006-08-21
CPC分类号： H04W52/241 , H04B17/391 , H04W52/08 , H04W52/12 , H04W52/146 , H04W52/16 , H04W52/20 , H04W52/247 , H04W52/248 , H04W52/325
摘要： Techniques for performing power control of multiple channels sent using multiple radio technologies are described. The transmit power of a reference channel, sent using a first radio technology (e.g., CDMA), is adjusted to achieve a target level of performance (e.g., a target erasure rate) for the reference channel. The transmit power of a data channel, sent using a second radio technology (e.g., OFDMA), is adjusted based on the transmit power of the reference channel. In one power control scheme, a reference power spectral density (PSD) level is determined based on the transmit power of the reference channel. A transmit PSD delta for the data channel is adjusted based on interference estimates. A transmit PSD of the data channel is determined based on the reference PSD level and the transmit PSD delta. The transmit power of the data channel is then set to achieve the transmit PSD for the data channel.
摘要翻译： 描述了使用多种无线电技术发送的多信道的功率控制技术。 调整使用第一无线电技术（例如，CDMA）发送的参考信道的发射功率，以实现用于参考信道的目标性能水平（例如，目标擦除率）。 使用第二无线电技术（例如，OFDMA）发送的数据信道的发射功率基于参考信道的发射功率进行调整。 在一个功率控制方案中，基于参考信道的发射功率来确定参考功率谱密度（PSD）电平。 基于干扰估计来调整数据信道的传输PSD增量。 基于参考PSD电平和发送PSD增量来确定数据信道的发送PSD。 然后设置数据信道的发射功率以实现数据信道的发射PSD。
-
公开(公告)号：US08718181B2
公开(公告)日：2014-05-06
申请号：US12511236
申请日：2009-07-29
CPC分类号： H04W52/146 , H04W52/12 , H04W52/16 , H04W52/247 , H04W52/248
摘要： Techniques for performing power control of multiple channels sent using multiple radio technologies are described. The transmit power of a reference channel, sent using a first radio technology (e.g., CDMA), is adjusted to achieve a target level of performance (e.g., a target erasure rate) for the reference channel. The transmit power of a data channel, sent using a second radio technology (e.g., OFDMA), is adjusted based on the transmit power of the reference channel. In one power control scheme, a reference power spectral density (PSD) level is determined based on the transmit power of the reference channel. A transmit PSD delta for the data channel is adjusted based on interference estimates. A transmit PSD of the data channel is determined based on the reference PSD level and the transmit PSD delta. The transmit power of the data channel is then set to achieve the transmit PSD for the data channel.
摘要翻译： 描述了使用多种无线电技术发送的多信道的功率控制技术。 调整使用第一无线电技术（例如，CDMA）发送的参考信道的发射功率，以实现用于参考信道的目标性能水平（例如，目标擦除率）。 使用第二无线电技术（例如，OFDMA）发送的数据信道的发射功率基于参考信道的发射功率进行调整。 在一个功率控制方案中，基于参考信道的发射功率来确定参考功率谱密度（PSD）电平。 基于干扰估计来调整数据信道的传输PSD增量。 基于参考PSD电平和发送PSD增量来确定数据信道的发送PSD。 然后设置数据信道的发射功率以实现数据信道的发射PSD。
-
公开(公告)号：US20100027451A1
公开(公告)日：2010-02-04
申请号：US12511234
申请日：2009-07-29
CPC分类号： H04W52/146 , H04W52/12 , H04W52/16 , H04W52/247 , H04W52/248
摘要： Techniques for performing power control of multiple channels sent using multiple radio technologies are described. The transmit power of a reference channel, sent using a first radio technology (e.g., CDMA), is adjusted to achieve a target level of performance (e.g., a target erasure rate) for the reference channel. The transmit power of a data channel, sent using a second radio technology (e.g., OFDMA), is adjusted based on the transmit power of the reference channel. In one power control scheme, a reference power spectral density (PSD) level is determined based on the transmit power of the reference channel. A transmit PSD delta for the data channel is adjusted based on interference estimates. A transmit PSD of the data channel is determined based on the reference PSD level and the transmit PSD delta. The transmit power of the data channel is then set to achieve the transmit PSD for the data channel.
摘要翻译： 描述了使用多种无线电技术发送的多信道的功率控制技术。 调整使用第一无线电技术（例如，CDMA）发送的参考信道的发射功率，以实现用于参考信道的目标性能水平（例如，目标擦除率）。 使用第二无线电技术（例如，OFDMA）发送的数据信道的发射功率基于参考信道的发射功率进行调整。 在一个功率控制方案中，基于参考信道的发射功率来确定参考功率谱密度（PSD）电平。 基于干扰估计来调整数据信道的传输PSD增量。 基于参考PSD电平和发送PSD增量来确定数据信道的发送PSD。 然后设置数据信道的发射功率以实现数据信道的发射PSD。
-
6.发明申请SELECTIVE TRANSMISSION OF POWER DECISION PILOT IN A WIRELESS COMMUNICATION SYSTEM 有权无线通信系统中电力决策导论的选择性传输公开(公告)号：US20110086663A1
公开(公告)日：2011-04-14
申请号：US12578066
申请日：2009-10-13
IPC分类号： H04B7/00
CPC分类号： H04W52/244 , H04J11/0023 , H04W52/242 , H04W52/325
摘要： Techniques for selectively transmitting a power decision pilot are described. The power decision pilot may be indicative of the transmit power to use for data transmission in a future time interval. The power decision pilot may be transmitted when sufficiently beneficial for channel quality estimation or omitted otherwise. Whether or not to transmit the power decision pilot may be determined based on system type (e.g., heterogeneous or homogeneous system), the presence or absence of a dominant interferer, whether a reduce interference request is received, etc. For example, a base station may transmit a power decision pilot if it causes high interference to a non-served terminal, if a served terminal observes high interference from a neighbor base station, if the base station receives a reduce interference request from a non-served terminal, etc. The power decision pilot may be transmitted if a determination is made to transmit the pilot or omitted otherwise.
摘要翻译： 描述用于选择性地发射功率决策导频的技术。 功率决定导频可以指示在将来的时间间隔中用于数据传输的发射功率。 如果对信道质量估计有足够的有利的话，则功率决定导频可以被传输，否则否则省略。 可以基于系统类型（例如，异构或均匀系统），显着干扰源的存在或不存在，是否接收到减少干扰请求等来确定是否发送功率决策导频。例如，基站 如果服务终端观察到来自相邻基站的高干扰，如果基站从非服务终端接收到减少干扰请求等，则它可以对未服务终端造成高干扰，可以发送功率决策导频。 如果确定发送导频，否则将发送功率决定导频。
-
公开(公告)号：US20090197603A1
公开(公告)日：2009-08-06
申请号：US12331156
申请日：2008-12-09
IPC分类号： H04W36/00
CPC分类号： H04W36/0083 , Y02D70/00 , Y02D70/1222 , Y02D70/1242 , Y02D70/1262 , Y02D70/142 , Y02D70/146
摘要： Techniques for selecting a serving base station for a terminal in a wireless communication network are described. In one design, multiple candidate base stations for the terminal may be identified, with each candidate base station being a candidate for selection as the serving base station for the terminal. The multiple candidate base stations may include base stations with different transmit power levels and/or may support interference mitigation. One of the multiple candidate base stations may be selected as the serving base station. In one design, the serving base station may be selected based on at least one metric for each candidate base station. The at least one metrics may be for pathloss, effective transmit power, effective geometry, projected data rate, control channel reliability, network utility, etc. The selected candidate base station may have a lower SINR than a highest SINR among the multiple candidate base stations.
摘要翻译： 描述了用于在无线通信网络中为终端选择服务基站的技术。 在一种设计中，可以识别用于终端的多个候选基站，其中每个候选基站是用于选择的候选作为终端的服务基站。 多个候选基站可以包括具有不同发射功率电平的基站和/或可以支持干扰减轻。 可以选择多个候选基站中的一个作为服务基站。 在一种设计中，可以基于每个候选基站的至少一个度量来选择服务基站。 所述至少一个度量可以用于路径损耗，有效发射功率，有效几何，投影数据速率，控制信道可靠性，网络效用等。所选择的候选基站可以具有比多个候选基站中的最高SINR更低的SINR 。
-
公开(公告)号：US09974065B2
公开(公告)日：2018-05-15
申请号：US12484624
申请日：2009-06-15
CPC分类号： H04W72/042 , H04W16/14 , H04W72/0426 , H04W72/082
摘要： Systems and methodologies are described that facilitate requesting blanking over control resources from one or more interfering eNBs or devices. An eNB, such as a macrocell, femtocell or picocell eNB, can transmit a downlink control blanking message to a UE directing the UE to perform blanking (e.g., for uplink control resources) or request the blanking from the interfering eNBs or devices (e.g., for downlink control resources). The downlink control blanking message can specify the desired control resources and/or information to determine the control resources. Thus, dynamic control blanking is provided such that blanking is requested to mitigate interference over control resources for the small scale eNB. The small scale eNB can subsequently communicate control data to the UE over the control resources; the control data can include a resource blanking message that similarly directs the UE to request blanking of general data resource from the interfering eNBs or devices.
-
9.发明授权Selective transmission of power decision pilot in a wireless communication system 有权无线通信系统中功率决策导频的选择性传输公开(公告)号：US09026164B2
公开(公告)日：2015-05-05
申请号：US12578066
申请日：2009-10-13
CPC分类号： H04W52/244 , H04J11/0023 , H04W52/242 , H04W52/325
摘要： Techniques for selectively transmitting a power decision pilot are described. The power decision pilot may be indicative of the transmit power to use for data transmission in a future time interval. The power decision pilot may be transmitted when sufficiently beneficial for channel quality estimation or omitted otherwise. Whether or not to transmit the power decision pilot may be determined based on system type (e.g., heterogeneous or homogeneous system), the presence or absence of a dominant interferer, whether a reduce interference request is received, etc. For example, a base station may transmit a power decision pilot if it causes high interference to a non-served terminal, if a served terminal observes high interference from a neighbor base station, if the base station receives a reduce interference request from a non-served terminal, etc. The power decision pilot may be transmitted if a determination is made to transmit the pilot or omitted otherwise.
摘要翻译： 描述用于选择性地发射功率决策导频的技术。 功率决定导频可以指示在将来的时间间隔中用于数据传输的发射功率。 如果对信道质量估计有足够的有利的话，则功率决定导频可以被传输，否则否则省略。 可以基于系统类型（例如，异构或均匀系统），显着干扰源的存在或不存在，是否接收到减少干扰请求等来确定是否发送功率决策导频。例如，基站 如果服务终端观察到来自相邻基站的高干扰，如果基站从非服务终端接收到减少干扰请求等，则它可以对未服务终端造成高干扰，可以发送功率决策导频。 如果确定发送导频，否则将发送功率决定导频。
-
10.发明授权公开(公告)号：US08521206B2
公开(公告)日：2013-08-27
申请号：US12425302
申请日：2009-04-16
申请人： Mohammad J. Borran , Avneesh Agrawal , Aamod D. Khandekar , Alexei Y. Gorokhov , Naga Bhushan , Tingfang Ji
发明人： Mohammad J. Borran , Avneesh Agrawal , Aamod D. Khandekar , Alexei Y. Gorokhov , Naga Bhushan , Tingfang Ji
IPC分类号： H04B7/00
CPC分类号： H04W52/243 , H04W72/08
摘要： Techniques for managing interference in a wireless network are described. In an aspect, reduce interference requests and interference indicators may be used for interference management to enable operation in scenarios with dominant interferers. In one design, a terminal may receive a reduce interference request from a first base station requesting lower interference on specified time-frequency resources. The terminal may also receive an interference indicator conveying the interference observed by a second base station. The terminal may determine its transmit power based on the reduce interference request and the interference indicator. For example, the terminal may determine an initial transmit power based on the reduce interference request (or the interference indicator) and may adjust the initial transmit power based on the interference indicator (or the reduce interference request) to obtain its transmit power. The terminal may transmit data to a serving base station at the determined transmit power.
摘要翻译： 描述了用于管理无线网络中的干扰的技术。 在一个方面，减少干扰请求和干扰指示符可以用于干扰管理，以使得能够在具有主要干扰源的情况下进行操作。 在一种设计中，终端可以从指定的时间 - 频率资源请求较低干扰的第一基站接收减少干扰请求。 终端还可以接收传达由第二基站观测到的干扰的干扰指示符。 终端可以基于减少干扰请求和干扰指示符来确定其发射功率。 例如，终端可以基于减少干扰请求（或干扰指示符）来确定初始发射功率，并且可以基于干扰指示符（或减少干扰请求）来调整初始发射功率以获得其发射功率。 终端可以以所确定的发射功率向服务基站发送数据。
-
-
-
-
-
-
-
-
-
搜索结果
91 条记录 (耗时 0.059 秒)