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1. 发明申请

WO2007109635A1 RATE CONTROL FOR MULTI-CHANNEL COMMUNICATION SYSTEMS 审中-公开
标题翻译：多通道通信系统的速率控制
公开(公告)号：WO2007109635A1
公开(公告)日：2007-09-27
申请号：PCT/US2007/064337
申请日：2007-03-20
申请人： QUALCOMM Incorporated , XU, Hao , KIM, Byoung-Hoon , MALLADI, Durga Prasad
发明人： XU, Hao , KIM, Byoung-Hoon , MALLADI, Durga Prasad
IPC分类号： H04L1/00
CPC分类号： H04L1/0002 , H04L1/0025 , H04L1/0026 , H04L5/0023 , H04L5/0037 , H04L5/0046 , H04L5/006 , H04L5/023 , H04L25/0206 , H04L27/2608
摘要： Various methods and systems for determining reverse-link data rates in a multi-user communication system are disclosed. For example, an apparatus for controlling a data rate of at least a first UE in a multi-user communication system is disclosed. The apparatus may include a channel estimation device configured to determine channel estimates for a plurality of different reverse-link signals to produce a plurality of channel estimates, a demodulation device configured to determine a first signal-to-noise (SNR) ratio for the first UE using the plurality of different channels estimates, and a data rate determining device configured to determine a first reverse-link data rate for the first UE using the first SNR.
摘要翻译：公开了用于在多用户通信系统中确定反向链路数据速率的各种方法和系统。例如，公开了一种用于在多用户通信系统中控制至少第一UE的数据速率的装置。该装置可以包括：信道估计装置，被配置为确定多个不同反向链路信号的信道估计以产生多个信道估计;解调装置，被配置为确定第一信道估计的第一信噪比 UE使用多个不同信道估计，以及数据速率确定装置，被配置为使用第一SNR确定第一UE的第一反向链路数据速率。

2. 发明申请

WO2007109679A2 UPLINK CHANNEL ESTIMATION USING A SIGNALING CHANNEL 审中-公开
标题翻译：上行链路信道估计使用信号信道
公开(公告)号：WO2007109679A2
公开(公告)日：2007-09-27
申请号：PCT/US2007/064426
申请日：2007-03-20
申请人： QUALCOMM Incorporated , KIM, Byoung-hoon , MALLADI, Durga, Prasad , XU, Hao
发明人： KIM, Byoung-hoon , MALLADI, Durga, Prasad , XU, Hao
CPC分类号： H04L27/261 , H04B7/04 , H04L1/0002 , H04L1/0026 , H04L1/06 , H04L5/023 , H04L25/0224 , H04W52/16 , H04W52/325
摘要： Techniques for efficiently deriving uplink channel estimates without consuming much additional uplink resources are described. A user equipment (UE) may send a request for uplink resources on a request channel (REQCH) whenever the UE desires to transmit data on the uplink. The UE may send the REQCH on a set of subcarriers and from multiple antennas, e.g., send REQCH data on data subcarriers and pilot on pilot subcarriers. A Node B may receive the request, estimate the complex channel gains for the pilot subcarriers based on received pilot symbols, and coherently demodulate received data symbols based on the channel gain estimates. The Node B may estimate the complex channel gains for the data subcarriers based on demodulated data symbols and derive a channel estimate for each UE antenna based on the channel gain estimates for the pilot and data subcarriers. The Node B may use the channel estimates for MIMO scheduling, subband scheduling, and rate selection.
摘要翻译：描述了用于高效地获得上行链路信道估计而不消耗许多额外的上行链路资源的技术。每当UE期望在上行链路上发送数据时，用户设备（UE）可以在请求信道（REQCH）上发送对上行链路资源的请求。 UE可以在一组副载波上并且从多个天线发送REQCH，例如，在数据副载波上发送REQCH数据，并且在导频副载波上发送导频。节点B可以接收该请求，基于接收到的导频符号估计导频子载波的复信道增益，并且基于信道增益估计对接收到的数据符号进行相干解调。节点B可以基于解调的数据符号来估计数据副载波的复信道增益，并且基于针对导频和数据副载波的信道增益估计来导出每个UE天线的信道估计。节点B可以使用MIMO调度，子带调度和速率选择的信道估计。

3. 发明申请

WO2019047152A1 TECHNIQUES AND APPARATUSES FOR IMPROVING NEW RADIO COVERAGE 审中-公开
公开(公告)号：WO2019047152A1
公开(公告)日：2019-03-14
申请号：PCT/CN2017/101015
申请日：2017-09-08
申请人： QUALCOMM INCORPORATED , ZHANG, Yu , XU, Hao , WEI, Chao , CHENG, Peng , CHEN, Wanshi , GAAL, Peter , MALLADI, Durga Prasad
发明人： ZHANG, Yu , XU, Hao , WEI, Chao , CHENG, Peng , CHEN, Wanshi , GAAL, Peter , MALLADI, Durga Prasad
IPC分类号： H04W72/14
摘要： Certain aspects of the present disclosure generally relate to wireless communication. More particularly, certain aspects of the present disclosure relate to early termination of a downlink channel repetition transmission, early termination of an uplink channel repetition, and/or determination of a plurality of beams for a repetition transmission. Numerous other aspects are provided.

4. 发明申请

WO2010148136A1 PHYSICAL RANDOM ACCESS CHANNEL PROCESSING 审中-公开
标题翻译：物理随机访问通道处理
公开(公告)号：WO2010148136A1
公开(公告)日：2010-12-23
申请号：PCT/US2010/038888
申请日：2010-06-16
申请人： QUALCOMM Incorporated , ZHANG, Xiaoxia , MALLADI, Durga, Prasad , WEI, Yongbin , XU, Hao , LUO, Tao
发明人： ZHANG, Xiaoxia , MALLADI, Durga, Prasad , WEI, Yongbin , XU, Hao , LUO, Tao
IPC分类号： H04W74/08
CPC分类号： H04W74/008 , H04W74/004 , H04W74/0833
摘要： Systems and methods for processing a physical random access channel are provided. In some embodiments, a method can include: receiving a signal indicative of a strong user and a desired user on a physical random access channel; performing at least one of a single segment frequency domain detection or a multi-segment frequency domain detection on the signal indicative of a strong user and a desired user; generating a residual signal by cancelling out the signal indicative of a strong user; and obtaining a message transmitted by a user equipment by performing at least one of the single segment frequency domain detection or multi-segment frequency domain detection on the residual signal.
摘要翻译：提供了用于处理物理随机访问信道的系统和方法。在一些实施例中，方法可以包括：在物理随机接入信道上接收指示强用户和期望用户的信号; 对指示强用户和期望用户的信号执行单段频域检测或多段频域检测中的至少一个; 通过取消指示强用户的信号来产生残差信号; 以及通过对残差信号进行单段频域检测或多段频域检测中的至少一个来获得由用户设备发送的消息。

5. 发明申请

WO2008055265A1 METHOD AND APPARATUS FOR DYNAMICALLY ADJUSTING A TRANSMISSION POWER SPECTRAL DENSITY OF PILOT AND DATA SYMBOLS 审中-公开
标题翻译：用于动态调整导频和数据符号传输功率谱密度的方法和装置
公开(公告)号：WO2008055265A1
公开(公告)日：2008-05-08
申请号：PCT/US2007/083560
申请日：2007-11-03
申请人： QUALCOMM Incorporated , XU, Hao , MALLADI, Durga Prasad
发明人： XU, Hao , MALLADI, Durga Prasad
IPC分类号： H04B7/005
CPC分类号： H04W52/346 , H04W52/325
摘要： A power spectral density of a pilot symbol and a data symbol is controlled for an uplink transmission by a mobile station in a wireless network by determining a power spectral density of at least one of the data symbol and the pilot symbol based on a peak-to-average ratio (PAR) of at least one of the data symbol and the pilot symbol. A power spectral density of at least one of the data symbol and the pilot symbol is then dynamically adjusted based on a difference between the PAR of the data symbol and a PAR of the pilot symbol. Changes in the power spectral densities of the pilot symbol and the data symbol are signaled to a receiving side of the uplink transmission. If acceptable by the receiving side, the pilot symbol and the data symbol are transmitted to the receiving side of the uplink transmission.
摘要翻译：导频符号和数据符号的功率谱密度通过无线网络中的移动台通过基于峰到值确定至少一个数据符号和导频符号的功率谱密度来控制上行链路传输 - 数据符号和导频符号中的至少一个的平均比（PAR）。然后，基于数据符号的PAR和导频符号的PAR之间的差异来动态地调整数据符号和导频符号中的至少一个的功率谱密度。导频符号和数据符号的功率谱密度的变化被发送到上行链路传输的接收侧。如果接收方可以接受，则将导频符号和数据符号发送到上行链路传输的接收侧。

6. 发明申请

WO2008055179A3 UNIFIED DESIGN AND CENTRALIZED SCHEDULING FOR DYNAMIC SIMO, SU-MIMO AND MU-MIMO OPERATION FOR RL TRANSMISSIONS 审中-公开
公开(公告)号：WO2008055179A3
公开(公告)日：2008-05-08
申请号：PCT/US2007/083057
申请日：2007-10-30
申请人： QUALCOMM INCORPORATED , XU, Hao , MALLADI, Durga, Prasad
发明人： XU, Hao , MALLADI, Durga, Prasad
IPC分类号： H04B7/005 , H04B7/06 , H04L1/00 , H04Q7/38
摘要： Systems and methods facilitate pilot signal design, power control, data rate determination, and channel assignment in the reverse link of a wireless communication system for dynamic scheduling and joint operation in SIMO, SU-MIMO, and MU-MIMO. Pilot signal is based on periodic transmissions of multiple sounding reference sequences for channel estimation. Power control is based on a reference signal at a predetermined power spectral density (PSD) level, and on an offset PSD determined and signaled based on an antenna that transmits the reference signal, other cell interference, and power amplifier headroom. PSD levels for SIMO/MIMO data transmissions are determined based on channel estimates and the predetermined PSD and offset PSD. Such data PSD levels are employed to generate data rates, and to dynamically schedule data streams for communication. Communication resources are conveyed through a channel assignment with an overhead that depends on the maximum multiplexing order of the estimated channel.

7. 发明申请

WO2009100217A2 ENHANCED MULTIPLEXING SYSTEM AND TECHNIQUE FOR UPLINK CONTROL CHANNELS 审中-公开
标题翻译：增强多路复用系统和上传控制通道的技术
公开(公告)号：WO2009100217A2
公开(公告)日：2009-08-13
申请号：PCT/US2009/033218
申请日：2009-02-05
申请人： QUALCOMM INCORPORATED , XU, Hao , MALLADI, Durga, Prasad , MONTOJO, Juan , GAAL, Peter
发明人： XU, Hao , MALLADI, Durga, Prasad , MONTOJO, Juan , GAAL, Peter
IPC分类号： H04L5/00
CPC分类号： H04L5/0053 , H04L1/1671 , H04L5/0023 , H04L5/0064 , H04L5/0092 , H04W72/1268
摘要： A communication system incorporates a multiplexing scheme so that a base node that schedules user equipment (UE) can determine whether an ACK/NACK and/or a service request (SR) has been received when both uplink (UL) transmissions are simultaneously scheduled. Significant complexity reduction, better link efficiency, and higher multiplexing capability since the base node can interpret selective use by the UE of either the ACK/NACK or SR UL channel. Such interpretation can be extended to when multiple downlink (DL) transmission modes can be used, specifically DL single input multiple output (SIMO), DL multiple input multiple output (MIMO) with rank 1 transmission, and DL MIMO with rank 2 transmission. Based upon knowledge of the scheduling and DL transmission mode, the base node does not have to blind decode a number of possibilities due to the mapping of possible responses from the UE. In addition, the multiplexing scheme is applicable to FDD and TDD.
摘要翻译：通信系统包括复用方案，使得调度用户设备（UE）的基站节点可以确定当同时调度上行链路（UL）传输时是否已经接收到ACK / NACK和/或服务请求（SR）。显着的复杂度降低，更好的链路效率和更高的复用能力，因为基站节点可以解释UE对ACK / NACK或SR UL信道的选择性使用。这样的解释可以扩展到当可以使用多个下行链路（DL）传输模式时，具体来说具有等级1传输的DL单输入多输出（SIMO），DL多输入多输出（MIMO）和具有秩2传输的DL MIMO。基于调度和DL传输模式的知识，由于来自UE的可能响应的映射，基本节点不必对许多可能性进行盲解码。另外，复用方案适用于FDD和TDD。

8. 发明申请

WO2008057969A3 JOINT USE OF MULTI-CARRIER AND SINGLE-CARRIER MULTIPLEXING SCHEMES FOR WIRELESS COMMUNICATION 审中-公开
公开(公告)号：WO2008057969A3
公开(公告)日：2008-05-15
申请号：PCT/US2007/083382
申请日：2007-11-01
申请人： QUALCOMM Incorporated , XU, Hao , MALLADI, Durga Prasad
发明人： XU, Hao , MALLADI, Durga Prasad
IPC分类号： H04L27/26 , H04L5/02 , H04L1/00
摘要： A communication system that facilitates transmissions in accordance with a single-carrier (SC) multiplexing scheme, a multi carrier (MC) multiplexing scheme or a combination thereof is disclosed. Based on various factors such as attributes associated with a UE (user equipment) or availability of resources, a base station can signal to the UE an appropriate multiplexing scheme to be adopted for particular transmissions. The UE can be scheduled for transmission in a semi-static mode wherein the UE employs the transmission scheme for a particular time interval or it may change the mode dynamically for different transmissions. For transmissions from the UE comprising a plurality of data streams with dissimilar attributes, the base station implements a MIMO (multiple input multiple output) system for the UE. This facilitates a UE to dynamically switch between or simultaneously adopt the various multiplexing schemes for communications and thereby fully utilize advantages associated with the different schemes.

9. 发明申请

WO2011130424A1 NOISE PADDING TECHNIQUES IN HETEROGENEOUS NETWORKS 审中-公开
标题翻译：异构网络中的噪声消除技术
公开(公告)号：WO2011130424A1
公开(公告)日：2011-10-20
申请号：PCT/US2011/032345
申请日：2011-04-13
申请人： QUALCOMM INCORPORATED , XU, Hao , JI, Tingfang , WANG, Renqiu , MALLADI, Durga Prasad , VAJAPEYAM, Madhavan Srinivasan
发明人： XU, Hao , JI, Tingfang , WANG, Renqiu , MALLADI, Durga Prasad , VAJAPEYAM, Madhavan Srinivasan
IPC分类号： H04W84/04 , H04J11/00
CPC分类号： H04W72/082 , H04J11/003 , H04J11/0056 , H04W84/045
摘要： A method of wireless communication includes detecting uplink interference in a received uplink transmission of a user equipment. The received uplink transmission is padded with noise based on the detected interference and also based on a frequency domain partition, whether a subframe is protected, and/or a user equipment type.
摘要翻译：一种无线通信方法包括检测用户设备接收的上行链路传输中的上行链路干扰。基于检测到的干扰，并且还基于频域分区，子帧是否受保护，和/或用户设备类型，对所接收的上行链路传输进行填充。

10. 发明申请

WO2010148131A1 MECHANISMS FOR INFORMATION EXCHANGE ACROSS CELLS TO FACILITATE RECEPTION IN A HETEROGENEOUS NETWORK 审中-公开
标题翻译：用于交换信息的机制可促进异构网络中的接收
公开(公告)号：WO2010148131A1
公开(公告)日：2010-12-23
申请号：PCT/US2010/038882
申请日：2010-06-16
申请人： QUALCOMM INCORPORATED , ZHANG, Xiaoxia , MALLADI, Durga Prasad , WEI, Yongbin , LUO, Tao , XU, Hao
发明人： ZHANG, Xiaoxia , MALLADI, Durga Prasad , WEI, Yongbin , LUO, Tao , XU, Hao
IPC分类号： H04B1/707
CPC分类号： H04J11/004 , H04W84/045 , H04W92/20
摘要： A method, an apparatus, and a computer program product for wireless communication are provided in which a signal including a signal from a UE is received. System information of a neighboring eNodeB is obtained. The received signal is processed based on the system information in order to enhance the received signal with respect to the signal from the UE.
摘要翻译：提供一种用于无线通信的方法，装置和计算机程序产品，其中接收到包括来自UE的信号的信号。获得相邻eNodeB的系统信息。基于系统信息来处理所接收的信号，以便相对于来自UE的信号增强接收信号。

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