公开(公告)号：WO2012174151A3

公开(公告)日：2012-12-20

申请号：PCT/US2012/042303

申请日：2012-06-13

Applicant: QUALCOMM INCORPORATED ,  ABRAHAM, Santosh Paul ,  SAMPATH, Hemanth ,  JONES, IV, Vincent Knowles ,  AGRAWAL, Avneesh ,  LI, Junyi

Inventor： ABRAHAM, Santosh Paul ,  SAMPATH, Hemanth ,  JONES, IV, Vincent Knowles ,  AGRAWAL, Avneesh ,  LI, Junyi

IPC: H04W8/00

Abstract: Certain aspects of the present disclosure generally provide methods and apparatus for enhanced discovery procedures in peer-to-peer (P2P) wireless local area networks (WLANs). With these procedures, discovery duration may be decreased, battery power consumption may be reduced during discovery, provided services may be ascertained during the device discovery phase without performing a separate service discovery phase, and/or the discovery range may be extended in an effort to discover a greater number of devices.

公开(公告)号：WO2011075178A1

公开(公告)日：2011-06-23

申请号：PCT/US2010/024176

申请日：2010-02-12

Applicant: QUALCOMM INCORPORATED ,  KHANDEKAR, Aamod, D. ,  PALANKI, Ravi ,  AGRAWAL, Avneesh

Inventor： KHANDEKAR, Aamod, D. ,  PALANKI, Ravi ,  AGRAWAL, Avneesh

IPC: H04L5/00 ,  H04W52/24

CPC classification number: H04L5/0062 ,  H04L5/0007

Abstract: Systems and methodologies are described that facilitate blanking on portions of bandwidth, such as a subset of interlaces, utilized by communicating devices that are dominantly interfered by a disparate device in wireless communications networks. The portions of bandwidth can relate to critical data, such as control data, and one or more of the communicating devices can request that the dominantly interfering device blank on one or more of the portions. The communicating devices can subsequently transmit data over the blanked portions free of the dominant interference. Additionally, the dominantly interfering device can request reciprocal blanking from the one or more communicating devices.

Abstract translation: 描述了系统和方法，其有助于在由无线通信网络中的不同设备主要干扰的通信设备所使用的带宽部分（例如交织子集）上消隐。 带宽的部分可以与诸如控制数据的关键数据相关联，并且一个或多个通信设备可以请求在一个或多个部分上的主要干扰设备空白。 通信设备可以随后在没有主导干扰的消隐部分上发送数据。 此外，主要干扰装置可以从一个或多个通信装置请求相互消隐。

公开(公告)号：WO2010078271A2

公开(公告)日：2010-07-08

申请号：PCT/US2009/069612

申请日：2009-12-28

Applicant: QUALCOMM Incorporated ,  PALANKI, Ravi ,  AGRAWAL, Avneesh ,  BHUSHAN, Naga

Inventor： PALANKI, Ravi ,  AGRAWAL, Avneesh ,  BHUSHAN, Naga

IPC: H04L12/28 ,  H04W8/00

CPC classification number: H04W8/005 ,  H04W72/085 ,  H04W76/14

Abstract: Techniques for centralized control of peer discovery pilot transmission are described. In an aspect, a designated network entity (e.g., a base station or a network controller) may control transmission of peer discovery pilots by stations located within its coverage area. In one design, the network entity may receive signaling triggering peer discovery pilot transmission. The network entity may direct each of at least one station to transmit a peer discovery pilot to allow one or more stations to detect the at least one station. The peer discovery pilot may include at least one synchronization signal or at least one reference signal. The network entity may receive pilot measurements from the one or more stations for peer discovery pilots from peer stations and/or reference signals from base stations. The network entity may determine whether or not to select peer-to-peer communication for two stations based on the pilot measurements.

Abstract translation: 描述了用于集中控制对等体发现导频传输的技术。 一方面，指定网络实体（例如，基站或网络控制器）可以通过位于其覆盖区域内的站点来控制对等体发现导频的传输。 在一种设计中，网络实体可以接收信令触发对等体发现导频传输。 网络实体可以指示至少一个站中的每一个发送对等体发现导频，以允许一个或多个站检测至少一个站。 对等体发现导频可以包括至少一个同步信号或至少一个参考信号。 网络实体可以从一个或多个站接收来自对等站的对等体发现导频和/或来自基站的参考信号的导频测量。 网络实体可以基于导频测量来确定是否为两个站点选择对等通信。

公开(公告)号：WO2010006297A2

公开(公告)日：2010-01-14

申请号：PCT/US2009/050301

申请日：2009-07-10

Applicant: QUALCOMM INCORPORATED ,  KHANDEKAR, Aamod, D. ,  AGRAWAL, Avneesh ,  BORRAN, Mohammad, J. ,  BHUSHAN, Naga

Inventor： KHANDEKAR, Aamod, D. ,  AGRAWAL, Avneesh ,  BORRAN, Mohammad, J. ,  BHUSHAN, Naga

IPC: H04W16/10 ,  H04W48/12

CPC classification number: H04W16/10 ,  H04W48/12 ,  H04W48/20 ,  H04W72/02 ,  H04W72/0406 ,  H04W72/082

Abstract: Providing for improved access communication for wireless systems is described herein. By way of example, wireless devices can employ wireless resource re-use in selecting a subset of access communication resources, to mitigate interference on uplink access requests. Re-use can be based on current network conditions, or on a type of base station facilitating the wireless communication. In some aspects, planned resource re-use can be facilitated by an access terminal. The access terminal requests neighboring or interfering network access points to reserve a set of resources for a serving access point. Reserved resources can be conveyed to the serving access point with an uplink access probe, to further mitigate interference.

Abstract translation: 这里描述了为无线系统提供改进的接入通信。 作为示例，无线设备可以在选择接入通信资源的子集时采用无线资源重用，以减轻对上行链路接入请求的干扰。 重用可以基于当前的网络条件，或基于便利无线通信的基站类型。 在一些方面，计划资源重用可以由接入终端促进。 接入终端请求相邻或干扰网络接入点为服务接入点预留一组资源。 预留的资源可以通过上行链路接入探测传送到服务接入点，以进一步减轻干扰。

公开(公告)号：WO2009158545A2

公开(公告)日：2009-12-30

申请号：PCT/US2009/048724

申请日：2009-06-25

Applicant: QUALCOMM Incorporated ,  AGRAWAL, Avneesh ,  GOROKHOV, Alexei Y. ,  GURELLI, Mehmet I. ,  BHUSHAN, Naga ,  AGASHE, Parag A.

Inventor： AGRAWAL, Avneesh ,  GOROKHOV, Alexei Y. ,  GURELLI, Mehmet I. ,  BHUSHAN, Naga ,  AGASHE, Parag A.

IPC: H04L1/00

CPC classification number: H04L1/1692 ,  H04L1/0026 ,  H04L1/1671 ,  H04L1/1861 ,  H04L1/1887 ,  H04L2001/0093

Abstract: Techniques for supporting broadcast/multiple transmission to multiple terminals with feedback and rate adaptation are described. In an aspect, a combination of HARQ and at least one shared feedback channel may be used to support broadcast/multicast transmission. In one design, a base station may send at least one transmission of a packet to multiple terminals, one transmission at a time. The base station may receive feedback information (e.g., NAK) for the packet from the terminals on the shared feedback channel(s). The base station may determine whether to terminate the packet early and/or may select at least one transmission parameter for another packet based on the feedback information for the packet. In another aspect, a transport format for a broadcast/multicast transmission may be selected based on CQI information from terminals receiving the transmission. The terminals may send CQI information at a slow rate and/or only certain terminals may send CQI information.

Abstract translation: 描述了用于支持具有反馈和速率适配的多个终端的广播/多传输的技术。 在一方面，可以使用HARQ和至少一个共享反馈信道的组合来支持广播/多播传输。 在一种设计中，基站可以向多个终端发送分组的至少一个传输，一次发送一个。 基站可以从共享反馈信道上的终端接收针对分组的反馈信息（例如，NAK）。 基站可以基于分组的反馈信息来确定是否提前终止分组和/或可以针对另一分组选择至少一个传输参数。 在另一方面，可以基于接收到传输的终端的CQI信息来选择用于广播/多播传输的传输格式。 终端可以以慢速率发送CQI信息和/或仅某些终端可以发送CQI信息。

公开(公告)号：WO2009132133A1

公开(公告)日：2009-10-29

申请号：PCT/US2009/041444

申请日：2009-04-22

Applicant: QUALCOMM INCORPORATED ,  BORRAN, Mohammad, J. ,  AGRAWAL, Avneesh ,  KHANDEKAR, Aamod, D. ,  GOROKHOV, Alexei, Y. ,  BHUSHAN, Naga ,  JI, Tingfang

Inventor： BORRAN, Mohammad, J. ,  AGRAWAL, Avneesh ,  KHANDEKAR, Aamod, D. ,  GOROKHOV, Alexei, Y. ,  BHUSHAN, Naga ,  JI, Tingfang

IPC: H04W52/24 ,  H04W72/08

CPC classification number: H04W52/243 ,  H04W72/08

Abstract: 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.

Abstract translation: 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。

公开(公告)号：WO2009120934A1

公开(公告)日：2009-10-01

申请号：PCT/US2009/038519

申请日：2009-03-27

Applicant: QUALCOMM INCORPORATED ,  PALANKI, Ravi ,  KHANDEKAR, Aamod, D. ,  AGRAWAL, Avneesh

Inventor： PALANKI, Ravi ,  KHANDEKAR, Aamod, D. ,  AGRAWAL, Avneesh

IPC: H04W72/08 ,  H04W84/04 ,  H04W52/24

CPC classification number: H04W72/082 ,  H04L1/0036 ,  H04W52/243 ,  H04W52/40

Abstract: Techniques for mitigating interference in a wireless communication network are described. A terminal may desire to communicate with a weaker serving base station and may observe high interference from a strong interfering base station. The two base stations may be asynchronous and have different frame timing. In an aspect, high interference may be mitigated by having the interfering base station reserve downlink and/or uplink resources. The interfering base station may transmit at a low power level or not at all on the reserved downlink resources to reduce interference to the terminal. Terminals served by the interfering base station may transmit at a low power level or not at all on the reserved uplink resources to reduce interference at the serving base station. The terminal may then be able to communicate with the serving base station.

Abstract translation: 描述了用于减轻无线通信网络中的干扰的技术。 终端可能希望与较弱的服务基站通信，并且可能观察到来自强干扰基站的高干扰。 两个基站可以是异步的并且具有不同的帧定时。 在一个方面，可以通过使干扰基站保留下行链路和/或上行链路资源来缓解高干扰。 干扰基站可以在保留的下行链路资源上以低功率电平或根本不发送，以减少对终端的干扰。 由干扰基站服务的终端可以在所保留的上行链路资源上以低功率级或全部传输，以减少服务基站的干扰。 终端然后可以能够与服务基站进行通信。

公开(公告)号：WO2009120724A2

公开(公告)日：2009-10-01

申请号：PCT/US2009/038146

申请日：2009-03-24

Applicant: QUALCOMM INCORPORATED ,  SAMPATH, Hemanth ,  AGRAWAL, Avneesh ,  LIN, Jeremy, H.

Inventor： SAMPATH, Hemanth ,  AGRAWAL, Avneesh ,  LIN, Jeremy, H.

IPC: H04L25/06 ,  H03M13/45

CPC classification number: H03M13/45 ,  H03M13/6588 ,  H04L1/0046 ,  H04L1/1819 ,  H04L1/1822 ,  H04L1/1835 ,  H04L1/1845 ,  H04L5/0007 ,  H04L25/067

Abstract: A system involves a transmitting device (for example, a first wireless communication device) and a receiving device (for example, a second wireless communication device). In the receiving device, LLR (Log-Likelihood Ratio) values are stored into an LLR buffer. LLR bit width is adjusted as a function of packet size of an incoming transmission to reduce the LLR buffer size required and/or to prevent LLR buffer capacity from being exceeded. The receiver may use a higher performance demodulator in order to maintain performance despite smaller LLR bit width. In the transmitting device, encoder code rate is adjusted as a function of receiver LLR buffer capacity and packet size of the outgoing transmission such that receiver LLR buffer capacity is not exceeded. Any combination of receiver LLR bit width adjustment, demodulator selection, and encoder code rate adjustment can be practiced to reduce LLR buffer size required while maintaining performance.

Abstract translation: 系统涉及发送设备（例如，第一无线通信设备）和接收设备（例如，第二无线通信设备）。 在接收设备中，将LLR（对数似然比）值存储到LLR缓冲器中。 根据输入传输的分组大小调整LLR比特宽度，以减少所需的LLR缓冲区大小和/或防止超出LLR缓冲区容量。 接收机可以使用更高性能的解调器，以便尽管较小的LLR位宽度来保持性能。 在发送设备中，根据接收机LLR缓冲器容量和输出传输的分组大小来调节编码器码率，使得接收机LLR缓冲器容量不被超过。 可以实现接收机LLR位宽度调整，解调器选择和编码器码率调整的任何组合，以在保持性能的同时减少所需的LLR缓冲区大小。

公开(公告)号：WO2009099473A2

公开(公告)日：2009-08-13

申请号：PCT/US2008/083460

申请日：2008-11-13

Applicant: QUALCOMM Incorporated ,  BORRAN, Mohammad J. ,  KHANDEKAR, Aamod ,  BHUSHAN, Naga ,  SAMPATH, Ashwin ,  GOROKHOV, Alexei ,  AGRAWAL, Avneesh ,  PALANKI, Ravi ,  HORN, Gavin B.

Inventor： BORRAN, Mohammad J. ,  KHANDEKAR, Aamod ,  BHUSHAN, Naga ,  SAMPATH, Ashwin ,  GOROKHOV, Alexei ,  AGRAWAL, Avneesh ,  PALANKI, Ravi ,  HORN, Gavin B.

IPC: H04W52/24

CPC classification number: H04W72/048 ,  H04W52/242 ,  H04W52/243 ,  H04W52/28 ,  H04W52/325 ,  H04W52/34

Abstract: Techniques for transmitting data with short-term interference mitigation in a wireless communication system are described. In one design, a first station (e.g., a base station or a terminal) may receive a message sent by a second station to request reduction of interference on at least one resource. In response to receiving the message, the first station may determine a first transmit power level to use for the at least one resource based on one or more factors such as a priority metric sent in the message, the buffer size at the first station, etc. The first station may send a power decision pilot on the at least one resource at a second transmit power level determined based on the first transmit power level.

Abstract translation: 描述了在无线通信系统中发送具有短期干扰抑制的数据的技术。 在一种设计中，第一站（例如，基站或终端）可以接收由第二站发送的消息以请求减少对至少一个资源的干扰。 响应于接收到消息，第一站可以基于一个或多个因素来确定用于至少一个资源的第一发射功率电平，诸如消息中发送的优先级度量，第一站的缓冲器大小等 第一站可以基于第一发射功率电平确定的第二发射功率电平在所述至少一个资源上发送功率决定导频。

公开(公告)号：WO2009099472A2

公开(公告)日：2009-08-13

申请号：PCT/US2008/083139

申请日：2008-11-11

Applicant: QUALCOMM Incorporated ,  BORRAN, Mohammad J. ,  KHANDEKAR, Aamod ,  BHUSHAN, Naga ,  SAMPATH, Ashwin ,  GOROKHOV, Alexei ,  AGRAWAL, Avneesh ,  PALANKI, Ravi ,  HORN, Gavin B.

Inventor： BORRAN, Mohammad J. ,  KHANDEKAR, Aamod ,  BHUSHAN, Naga ,  SAMPATH, Ashwin ,  GOROKHOV, Alexei ,  AGRAWAL, Avneesh ,  PALANKI, Ravi ,  HORN, Gavin B.

IPC: H04W52/24

CPC classification number: H04W72/048 ,  H04W52/242 ,  H04W52/243 ,  H04W52/28 ,  H04W52/325 ,  H04W52/34

Abstract: Techniques for transmitting data with short-term interference mitigation in a wireless communication system are described. In one design, a serving base station may send a message to a terminal to trigger short-term interference mitigation. In response, the terminal may send a message to request at least one interfering base station to reduce interference on at least one resource. Each interfering base station may determine a transmit power level to be used for the at least one resource and may send a pilot at this transmit power level. The terminal may estimate the channel quality of the at least one resource based on at least one pilot received from the at least one interfering base station. The terminal may send information indicative of the estimated channel quality to the serving base station. The serving base station may send a data transmission on the at least one resource to the terminal.

Abstract translation: 描述了在无线通信系统中发送具有短期干扰抑制的数据的技术。 在一种设计中，服务基站可以向终端发送消息以触发短期干扰减轻。 作为响应，终端可以发送消息以请求至少一个干扰基站以减少对至少一个资源的干扰。 每个干扰基站可以确定要用于至少一个资源的发射功率电平，并且可以以该发射功率电平发送导频。 终端可以基于从至少一个干扰基站接收的至少一个导频来估计至少一个资源的信道质量。 终端可以向服务基站发送指示估计的信道质量的信息。 服务基站可以向终端发送至少一个资源上的数据传输。