RLP retransmission for CDMA communication systems

    公开(公告)号:US06987780B2

    公开(公告)日:2006-01-17

    申请号:US10166300

    申请日:2002-06-10

    IPC分类号: H04J3/22

    摘要: Techniques for retransmitting data via RLP in a CDMA (e.g., cdma2000) system with a first retransmission mechanism provided by the RLP and a second retransmission mechanism provided by an HARQ-CF. In one method, missing RLP frames are first detected (e.g., by a receiver RLP). A dynamic timer is then maintained (e.g., by a receiver HARQ-CF) for each RLP frame detected to be missing. The dynamic timers are event-driven and have variable time durations. Each dynamic timer is updated based on events known to the receiver HARQ-CF. Fixed timers with fixed time durations may also be maintained (e.g., by the receiver RLP) for the missing RLP frames. Whether or not a missing RLP frame is lost is determined based on the dynamic timer and the fixed timer (if any) maintained for the RLP frame. A NAK may be issued for retransmission of each RLP frame deemed to be lost.

    Method and apparatus for a reverse link supplemental channel scheduling

    公开(公告)号:US06799043B2

    公开(公告)日:2004-09-28

    申请号:US10170950

    申请日:2002-06-12

    IPC分类号: H04Q720

    摘要: An apparatus and method for communications of scheduling information of reverse link transmissions are disclosed. A base station controller determines scheduling of a reverse link supplemental channel transmission for a mobile station in a communication system (100). The base station controller groups the mobile station in a group of mobile stations and assigns a forward link channel assignment channel to the group of mobile stations. A transceiver (400) incorporates information relating to the determined scheduling in the assigned forward link common assignment channel and transmits the assigned forward link common assignment channel to the mobile station for scheduling the reverse link supplemental channel transmission. The mobile station receives the assigned forward link common assignment channel. The mobile station schedules transmission of the reverse link supplemental channel transmission in accordance with the determined scheduling and transmits the reverse link supplemental channel in accordance with the determined scheduling.

    Optimized header for efficient processing of data packets
    124.
    发明授权
    Optimized header for efficient processing of data packets 有权
    优化的报头,用于数据包的高效处理

    公开(公告)号:US09554417B2

    公开(公告)日:2017-01-24

    申请号:US12643855

    申请日:2009-12-21

    IPC分类号: H04J3/24 H04W80/02 H04W12/02

    CPC分类号: H04W80/02 H04W12/02

    摘要: Methods, apparatus, and computer program products for processing an RLC PDU having an RLC payload and an RLC header, wherein the RLC payload comprises a plurality of at least partially ciphered SDUs, each of the SDUs being either a partial or complete SDU, and wherein the RLC header comprises a separate count for each of the SDUs, each of the counts being configured to support deciphering of the corresponding SDU. Each SDU is a PDCP PDU having a PDCP payload and a PDCP header, wherein the PDCP payload comprises a plurality of IP packets, and wherein the PDCP header comprises a length indicator for at least one of the IP packets.

    摘要翻译: 用于处理具有RLC有效载荷和RLC报头的RLC PDU的方法,装置和计算机程序产品,其中RLC有效载荷包括多个至少部分加密的SDU,每个SDU是部分或完整的SDU,并且其中 RLC标题包括用于每个SDU的单独计数,每个计数被配置为支持对应的SDU的解密。 每个SDU是具有PDCP有效载荷和PDCP报头的PDCP PDU,其中PDCP有效载荷包括多个IP分组,并且其中PDCP报头包括用于至少一个IP分组的长度指示符。

    Power headroom for simultaneous voice and long term evolution
    125.
    发明授权
    Power headroom for simultaneous voice and long term evolution 有权
    同时进行语音和长期演进的功率余量

    公开(公告)号:US09408162B2

    公开(公告)日:2016-08-02

    申请号:US13247973

    申请日:2011-09-28

    IPC分类号: H04L1/00 H04W52/34 H04W52/36

    CPC分类号: H04W52/34 H04W52/367

    摘要: A method, apparatus, and computer program product for wireless communication are provided in which a determination is made of a first power available for transmitting a first signal using a first radio access technology while simultaneously transmitting a second signal using a second radio access technology different from the first radio access technology. An uplink grant is received and a determination is made regarding a second power for transmitting the first signal on uplink using the first radio access technology based on the uplink grant. A determination is made regarding a difference between the first power and the second power. Information related to the difference is reported via the first radio access technology based on a trigger. The reporting information is triggered when the change of a power backoff from a last report exceeds a selected threshold.

    摘要翻译: 提供了一种用于无线通信的方法,装置和计算机程序产品,其中使用第一无线电接入技术确定可用于发送第一信号的第一功率,同时使用不同于第一无线电接入技术的第二无线接入技术同时发送第二信号 第一种无线接入技术。 接收上行链路许可,并且基于上行链路许可,使用第一无线电接入技术确定用于在上行链路上发送第一信号的第二功率。 确定第一功率和第二功率之间的差异。 通过基于触发的第一无线电接入技术报告与差异相关的信息。 当上一次报告的功率回退变化超过所选阈值时,触发报告信息。

    Carrier grouping for power headroom report
    126.
    发明授权
    Carrier grouping for power headroom report 有权
    载波分组功率余量报告

    公开(公告)号:US09084209B2

    公开(公告)日:2015-07-14

    申请号:US13291756

    申请日:2011-11-08

    摘要: Methods, systems, devices, and computer program products are disclosed which facilitate the transmission and reception of power headroom reports for component carriers in a multi carrier wireless communication system. A mobile device may determine available power headroom in a multicarrier configuration through a calculation of a maximum transmit power associated with a first component carrier (CC) in a subset of the CCs. The calculation can account for increases in transmit power of other component carriers in the subset by proportionally increasing transmit powers for each of the subset of CCs. A power headroom may be identified for one or more of the CCs based on a result of the calculation, and a power headroom report (PHR) may be generated that includes the power headroom available for the first CC.

    摘要翻译: 公开了方便,系统,设备和计算机程序产品,其有助于传输和接收多载波无线通信系统中的分量载波的功率余量报告。 移动设备可以通过计算与CC的子集中的第一分量载波(CC)相关联的最大发射功率来确定多载波配置中的可用功率余量。 该计算可以通过按比例增加CC的子集中的每一个的发射功率来解决子集中其他分量载波的发射功率的增加。 可以基于计算结果为一个或多个CC识别功率余量,并且可以生成包括可用于第一CC的功率余量的功率余量报告(PHR)。

    Method and apparatus for security activation in wireless communications network
    127.
    发明授权
    Method and apparatus for security activation in wireless communications network 有权
    无线通信网络中安全激活的方法和装置

    公开(公告)号:US08923814B2

    公开(公告)日:2014-12-30

    申请号:US13674350

    申请日:2012-11-12

    摘要: Systems and methodologies are provided that facilitate security activation for wireless communications. In an aspect, a method for wireless communication is provided which includes determining a first security key for communicating with a source access point and receiving, from the source access point, a handover command that includes an indication of whether to apply a second security key upon handover. The method also includes handing over communication from the source access point to a target access point, where the second security key is applied for communicating with the target access point upon the handover when the handover command indicates to apply the second security key.

    摘要翻译: 提供了有助于无线通信的安全激活的系统和方法。 一方面,提供了一种用于无线通信的方法,其包括确定用于与源接入点进行通信的第一安全密钥,并且从源接入点接收切换命令,该切换命令包括是否应用第二安全密钥的指示 交出。 所述方法还包括将来自源接入点的通信切换到目标接入点,其中当切换命令指示应用第二安全密钥时,第二安全密钥被应用于在切换时与目标接入点进行通信。

    Method and apparatus for implementing LTE RLC header formats
    128.
    发明授权
    Method and apparatus for implementing LTE RLC header formats 有权
    用于实现LTE RLC报头格式的方法和装置

    公开(公告)号:US08873471B2

    公开(公告)日:2014-10-28

    申请号:US12241416

    申请日:2008-09-30

    申请人: Sai Yiu Duncan Ho

    发明人: Sai Yiu Duncan Ho

    IPC分类号: H04W4/00 H04W28/06 H04W80/02

    CPC分类号: H04W28/06 H04W80/02

    摘要: Systems and methodologies of reducing overhead by designating various fields in an optimized Radio Link Control header. Depending on communication type (e.g., VoIP, non-VoIP) such fields include a combination of a Segment Indicator (SI—which indicates presence of a whole SDU at beginning or at an ending), a Sequence Number (SN), a Length Indicator (LI—which indicates length of a service data unit); a length for the length indicator (LLI—to enable a variable size for the LI and notify a receiver regarding such varying size); a Segment Offset (SO—to designate resegmented packets for lost protocol data units); a length indicator for the SO (LSO—to enable a variable size for the SO); and Last Segment Flag (LSF—for resegmentation of RLC protocol data units).

    摘要翻译: 通过在优化的无线电链路控制报头中指定各种领域来减少开销的系统和方法。 根据通信类型(例如,VoIP,非VoIP),这样的字段包括段指示符(SI,其指示在开始或结束时存在整个SDU),序列号(SN),长度指示符 (LI-表示服务数据单元的长度); 长度指示器的长度(LLI - 为L1提供可变大小,并通知接收器有关这种变化的大小); 段偏移(SO-to表示丢失的协议数据单元的分段数据包); SO的长度指示符(LSO-为SO启用可变大小); 和最后一个段标志(LSF-用于RLC协议数据单元的重新分段)。

    Generating protocol-specific keys for a mixed communication network
    129.
    发明授权
    Generating protocol-specific keys for a mixed communication network 有权
    为混合通信网络生成协议专用密钥

    公开(公告)号:US08819435B2

    公开(公告)日:2014-08-26

    申请号:US13610831

    申请日:2012-09-11

    IPC分类号: H04L29/06 H04L9/14 H04L9/08

    摘要: Security keys are typically needed to communicate with various network communication protocols of a mixed communication network. Herein, a protocol-specific key for a particular network communication protocol is generated based upon a result of a hash operation that includes a network key associated with the mixed communication network and information corresponding to the particular network communication protocol. Interoperability of multiple devices in the mixed communication network is made possible when the multiple devices generate (i.e. derive) protocol-specific keys using the same network key and common information corresponding to particular network communication protocols.

    摘要翻译: 通常需要安全密钥来与混合通信网络的各种网络通信协议进行通信。 这里,基于包括与混合通信网络相关联的网络密钥和对应于特定网络通信协议的信息的散列操作的结果来生成特定网络通信协议的协议专用密钥。 当多个设备使用相同的网络密钥和对应于特定的网络通信协议的公共信息产生(即导出)协议专用密钥时,混合通信网络中的多个设备的互操作性成为可能。

    Header compression for relay nodes
    130.
    发明授权
    Header compression for relay nodes 失效
    中继节点的报头压缩

    公开(公告)号:US08787242B2

    公开(公告)日:2014-07-22

    申请号:US12891943

    申请日:2010-09-28

    IPC分类号: H04B7/14

    摘要: Methods and apparatuses are provided that facilitate compressing packet headers for communicating among access points. An access point can advertise compression profiles to one or more disparate access points, and the one or more disparate access points can select at least one compression profile for compressing/decompressing packets related to the one or more disparate access points and/or devices communicating therewith. The one or more disparate access points can notify the access point of the selected compression profile, a compression context identifier, and/or static data related to identifying associated packets. In this regard, the access point can compress packets that have the associated static data according to the compression profile and compression context identifier. Similarly, the access point can decompress packets from the one or more disparate access points based on the compression context identifier.

    摘要翻译: 提供了便于压缩分组报头以在接入点之间进行通信的方法和装置。 接入点可以将压缩简档通告给一个或多个不同的接入点,并且一个或多个不同的接入点可以选择至少一个压缩简档来压缩/解压缩与一个或多个不同接入点相关的分组和/或与其通信的设备 。 一个或多个不同的接入点可以通知所选择的压缩简档的接入点,压缩上下文标识符和/或与识别相关联的分组有关的静态数据。 在这方面,接入点可以根据压缩简档和压缩上下文标识来压缩具有相关联的静态数据的分组。 类似地,接入点可以基于压缩上下文标识符来解压缩来自一个或多个不同接入点的分组。