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21. 发明申请

WO2008057898A2 METHOD AND APPARATUS FOR CELL SEARCH IN AN ORTHOGONAL WIRELESS COMMUNICATION SYSTEM 审中-公开
标题翻译：在正交无线通信系统中用于小区搜索的方法和设备
公开(公告)号：WO2008057898A2
公开(公告)日：2008-05-15
申请号：PCT/US2007/083265
申请日：2007-10-31
申请人： QUALCOMM Incorporated , MONTOJO, Juan , KIM, Byoung-hoon , MALLADI, Durga Prasad , LUO, Tao
发明人： MONTOJO, Juan , KIM, Byoung-hoon , MALLADI, Durga Prasad , LUO, Tao
IPC分类号： H04L27/26 , H04B1/707
CPC分类号： H04W48/16 , H04B2201/70701 , H04J11/0069 , H04L5/0023 , H04L5/0037 , H04L5/0048 , H04W48/08 , Y02D70/00 , Y02D70/1222 , Y02D70/1262 , Y02D70/25
摘要： Systems and methodologies are described that provide techniques for efficient cell search in a wireless communication system. In one aspect, a frequency reuse pattern can be generated by applying frequency shifts to reference signals transmitted from cells that provide coverage for a NodeB based on cell IDs or cell group IDs for the cells. The frequency shifts applied to reference signals can then be utilized as a basis for multiplexing reference signals from different cells using frequency division multiplexing (FDM) or a combination of FDM and other multiplexing techniques. Other adjustments to reference signals transmitted from respective cells, such as transmit power adjustments, can further be made to improve detection performance.
摘要翻译：描述了在无线通信系统中提供用于高效小区搜索的技术的系统和方法。在一个方面，频率再用模式可以通过将频率偏移应用于基于小区ID或小区组ID的小区发送的参考信号来提供对于节点B的覆盖。然后可以利用施加到参考信号的频移作为使用频分复用（FDM）或FDM和其他复用技术的组合来复用来自不同小区的参考信号的基础。还可以对从各个小区发送的参考信号进行其他调整，例如发送功率调整，以提高检测性能。

22. 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。

23. 发明申请

WO2008055222A3 METHOD AND APPARATUS FOR INCREASING ACK RESOURCES FOR A WIRELESS COMMUNICATION SYSTEM 审中-公开
公开(公告)号：WO2008055222A3
公开(公告)日：2008-05-08
申请号：PCT/US2007/083202
申请日：2007-10-31
申请人： QUALCOMM Incorporated , MALLADI, Durga Prasad
发明人： MALLADI, Durga Prasad
IPC分类号： H04L1/00 , H04L1/16
摘要： A method and apparatus for a wireless communication system, initially increases resources allocated to an ACKCH as resources allocated to a shared data channel (SDCH), such as a physical downlink shared channel (PDSCH) or a physical uplink shared channel (PUSCH), increases. The resources allocated to ACK are subsequently limited to a predetermined amount.

24. 发明申请

WO2008042967A3 RANDOM ACCESS SIGNALING TRANSMISSION FOR SYSTEM ACCESS IN WIRELESS COMMUNICATION 审中-公开
公开(公告)号：WO2008042967A3
公开(公告)日：2008-04-10
申请号：PCT/US2007/080319
申请日：2007-10-03
申请人： QUALCOMM Incorporated , DAMNJANOVIC, Aleksandar , MONTOJO, Juan , MALLADI, Durga Prasad
发明人： DAMNJANOVIC, Aleksandar , MONTOJO, Juan , MALLADI, Durga Prasad
IPC分类号： H04W4/00
摘要： Techniques for transmitting random access signaling for system access are described. In an aspect, random access signaling may be sent based on at least one transmission parameter having different values for different user equipment (UE) classes. At least one parameter value may be determined based on a particular UE class, and the random access signaling may be sent based on the determined parameter value(s). The random access signaling may be a random access preamble, and the at least one transmission parameter may include a target SNR, a backoff time, and/or a power ramp. The random access preamble may then be sent based on a target SNR value, a power ramp value, and/or a backoff time value for the particular UE class. In another aspect, a message for system access may be sent based on a power control correction received in a random access response for the random access preamble.

25. 发明申请

WO2008042874A9 METHOD AND APPARATUS FOR PROCESSING PRIMARY AND SECONDARY SYNCHRONIZATION SIGNALS FOR WIRELESS COMMUNICATION 审中-公开
公开(公告)号：WO2008042874A9
公开(公告)日：2008-04-10
申请号：PCT/US2007/080120
申请日：2007-10-01
申请人： QUALCOMM INCORPORATED , MALLADI, Durga Prasad , KIM, Byoung-hoon , LUO, Tao
发明人： MALLADI, Durga Prasad , KIM, Byoung-hoon , LUO, Tao
IPC分类号： H04B1/707 , H04L27/26
摘要： Techniques for facilitating cell search by user equipments (UEs) in a wireless communication system are described. In an aspect, a primary synchronization code (PSC) sequence may be generated based on a Frank sequence and a constant amplitude sequence that is repeated multiple times. In another aspect, a set of PSC sequences may be generated based on complementary sequences having good aperiodic correlation properties and efficient implementations. In one design, PSC sequences A+B and B+A may be formed based on Golay complementary sequences A and B, there "+" denotes concatenation. In yet another aspect, a set of secondary synchronization code (SSC) sequences may be generated based on a set of base sequences and different modulation symbols of a modulation scheme. Each base sequence may be modulated by each of M possible modulation symbols for the modulation scheme to obtain M different SSC sequences.

26. 发明申请

WO2008042865A3 SYNCHRONIZATION TRANSMISSIONS IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
公开(公告)号：WO2008042865A3
公开(公告)日：2008-04-10
申请号：PCT/US2007/080111
申请日：2007-10-01
申请人： QUALCOMM INCORPORATED , KIM, Byoung-hoon , MALLADI, Durga Prasad
发明人： KIM, Byoung-hoon , MALLADI, Durga Prasad
IPC分类号： H04B1/707 , H04L27/26
摘要： To support cell search, multiple (e.g., two) synchronization transmissions are sent in a frame with non-uniform spacing. Information is conveyed via the non-equal distances between consecutive synchronization transmissions. Multiple levels of non-uniform spacing may be used to convey different types of information. In one design, the multiple synchronization transmissions are sent in different subframes of a frame, and each synchronization transmission is sent in one of multiple symbol periods in a respective subframe. The synchronization transmissions may be sent in non-evenly spaced subframes to convey frame boundary. One synchronization transmission may be sent in one of multiple possible symbol periods depending on the information, e.g., a particular group of cell IDs, being conveyed. The distances between synchronization transmissions may also be used to convey cyclic prefix length. A secondary synchronization transmission carrying a cell ID may be sent at a predetermined offset from one of the multiple synchronization transmissions.

27. 发明申请

WO2008033985A2 BEACON ASSISTED CELL SEARCH IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
标题翻译：无线通信系统中的信号辅助小区搜索
公开(公告)号：WO2008033985A2
公开(公告)日：2008-03-20
申请号：PCT/US2007/078369
申请日：2007-09-13
申请人： QUALCOMM INCORPORATED , MALLADI, Durga Prasad , MONTOJO, Juan , LI, Junyi , KIM, Byoung-Hoon
发明人： MALLADI, Durga Prasad , MONTOJO, Juan , LI, Junyi , KIM, Byoung-Hoon
IPC分类号： H04W48/12 , H04W48/16
CPC分类号： H04W56/001 , H04B1/713 , H04J11/0069 , H04L5/0023 , H04L5/0048 , H04L5/0053 , H04L5/0064 , H04L27/2656 , H04W48/12 , H04W48/16
摘要： Techniques for transmitting synchronization signals to assist user equipments (UEs) perform cell searches are described. In one design, a base station for a cell may generate and transmit a primary synchronization signal and a secondary synchronization signal, which may be used by the UEs for initial cell search at power up. The base station may also generate and transmit one or more beacon signals, which may be used by the UEs for neighbor cell search to detect for neighbor cells. The number of beacon signals to transmit and the set of subcarriers usable for each beacon signal may be determined based on the system bandwidth. Each beacon signal may be mapped to one subcarrier in the set of subcarriers in each beacon symbol period. This one subcarrier may be determined based on a beacon hopping pattern or a beacon code and may be dependent on a cell identifier (ID).
摘要翻译：描述用于发送同步信号以辅助用户设备（UE）执行小区搜索的技术。在一种设计中，用于小区的基站可以生成并发送主同步信号和辅同步信号，UE可以在加电时用于初始小区搜索。基站还可以生成和发送一个或多个信标信号，其可以由UE用于相邻小区搜索以检测相邻小区。可以基于系统带宽来确定要发送的信标信号的数量和可用于每个信标信号的子载波的集合。每个信标信号可以被映射到每个信标符号周期中的子载波集合中的一个子载波。可以基于信标跳变模式或信标代码来确定该一个子载波，并且可以依赖于小区标识符（ID）。

28. 发明申请

WO2008009027A3 METHOD AND APPARATUS FOR FREQUENCY SELECTIVE AND FREQUENCY DIVERSITY TRANSMISSIONS IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
公开(公告)号：WO2008009027A3
公开(公告)日：2008-01-17
申请号：PCT/US2007/073627
申请日：2007-07-16
申请人： QUALCOMM INCORPORATED , MALLADI, Durga Prasad
发明人： MALLADI, Durga Prasad
IPC分类号： H04Q7/38
摘要： Techniques for efficiently supporting frequency selective scheduling (FSS) and frequency diversity scheduling (FDS) are described. In one design, a first transmission for an FSS user may be mapped to a subband selected for this user from among at least one subband in a first frequency region of the system bandwidth. The first transmission may be mapped to a fixed portion or different portions of the selected subband in different time intervals. A second transmission for an FDS user may be mapped across multiple subbands in a second frequency region of the system bandwidth. The second transmission may be mapped to different subbands or different resource blocks in the second frequency region in different time intervals. Each time interval may correspond to a symbol period, a slot, a subframe, etc. The frequency hopping may be performed based on a fixed hopping pattern or a pseudo-random hopping pattern.

29. 发明申请

WO2007109630A1 GROUPING OF USERS FOR MIMO TRANSMISSION IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
标题翻译：用于无线通信系统中的MIMO传输的用户分组
公开(公告)号：WO2007109630A1
公开(公告)日：2007-09-27
申请号：PCT/US2007/064329
申请日：2007-03-19
申请人： QUALCOMM INCORPORATED , KIM, Byoung-Hoon , MALLADI, Durga Prasad
发明人： KIM, Byoung-Hoon , MALLADI, Durga Prasad
IPC分类号： H04L1/00
CPC分类号： H04B7/0452 , H04B7/0417 , H04B7/0632 , H04B7/0665 , H04L1/0002 , H04L1/0009 , H04L1/0015 , H04L1/002 , H04L1/0025 , H04L1/0026 , H04L1/0035 , H04L1/06
摘要： Techniques for supporting MIMO transmission are described. User equipments (UEs) are classified into a first group of UEs to be scheduled individually and a second group of UEs that can be scheduled together. The classification may be based upon the number of transmit and receive antennas, sector loading, data requirements, long-term channel statistics, the number of UEs, etc. Channel quality indicator (CQI) information received from the UEs is interpreted in different manners depending on the groups to which the UEs belong. A single UE may be selected at a time from the first group or multiple UEs may be selected at a time from the second group for MIMO transmission. A MIMO transmission may be sent to a single UE in the first group or multiple UEs in the second group at rates selected based upon the CQI information.
摘要翻译：描述了支持MIMO传输的技术。用户设备（UE）被分类为要单独调度的第一组UE和可以一起调度的第二组UE。分类可以基于发射和接收天线的数量，扇区负载，数据需求，长期信道统计，UE的数量等。从UE接收的信道质量指示符（CQI）信息以不同的方式被解释，这取决于在UE所属的组上。可以从第一组一次选择单个UE，或者可以从第二组一次选择多个UE进行MIMO传输。可以基于CQI信息选择的速率将MIMO传输发送到第一组中的单个UE或第二组中的多个UE。

30. 发明申请

WO2006086788A1 METHOD AND APPARATUS FOR MITIGATING INTERFERENCE IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
标题翻译：用于减轻无线通信系统干扰的方法和装置
公开(公告)号：WO2006086788A1
公开(公告)日：2006-08-17
申请号：PCT/US2006/005189
申请日：2006-02-13
申请人： QUALCOMM INCORPORATED , DAMNJANOVIC, Jelena , MALLADI, Durga Prasad
发明人： DAMNJANOVIC, Jelena , MALLADI, Durga Prasad
IPC分类号： H04Q7/36
CPC分类号： H04W16/12 , H04W16/02
摘要： Techniques to mitigate inter-cell interference using joint time and frequency division are described. A frequency band is divided into multiple non-overlapping frequency subbands. The transmission timeline is divided into T in and T out time intervals. Data is exchanged with users in at least one inner region of a cell on the entire frequency band in the T in time intervals. Data is exchanged with users in multiple outer regions of the cell on the multiple frequency subbands in the T out time intervals. The frequency band may be partitioned into three frequency subbands. Data may then be exchanged with users in first, second and third outer regions on first, second and third frequency subbands, respectively. The regions in which the users are located may be determined based on pilot and/or other measurements.
摘要翻译：描述了使用联合时间和频率分割来减轻小区间干扰的技术。频带被划分为多个非重叠频率子带。传输时间线被划分为和T 时间间隔中的T _{。数据在时间间隔内的T _{的整个频带的小区的至少一个内部区域中与用户进行交换。数据在时间间隔的多个频率子带上与小区的多个外部区域中的用户进行交换。频带可以被划分成三个频率子带。然后可以分别在第一，第二和第三频率子带上的第一，第二和第三外部区域中的用户交换数据。可以基于导频和/或其他测量来确定用户所在的区域。}}

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