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    • 5. 发明申请
    • SYSTEM AND METHOD FOR DYNAMIC MEMORY POWER MANAGEMENT
    • 动态记忆功率管理系统与方法
    • WO2014070264A1
    • 2014-05-08
    • PCT/US2013/051231
    • 2013-07-19
    • QUALCOMM INCORPORATED
    • LO, Haw-JingTAHA, AliCHUN, Dexter T.
    • G06F1/32
    • G06F1/3225G06F1/3275G06F12/023Y02D10/14Y02D50/20
    • Various embodiments of methods and systems for hardware (HW) based dynamic memory management in a portable computing device (PCD) are disclosed. One exemplary method includes generating a lookup table (LUT) to track each memory page located across multiple portions of a volatile memory. The records in the LUT are updated to keep track of data locations. When the PCD enters a sleep state to conserve energy, the LUT may be queried to determine which specific memory pages in a first portion of volatile memory (e.g., an upper bank) contain data content and which pages in a second portion of volatile memory (e.g., a lower bank) are available for receipt of content. Based on the query, the location of the data in the memory pages of the upper bank is known and can be quickly migrated to memory pages in the lower bank which are identified for receipt of the data.
    • 公开了在便携式计算设备(PCD)中基于硬件(HW)的动态存储器管理的方法和系统的各种实施例。 一种示例性方法包括生成查找表(LUT)以跟踪位于易失性存储器的多个部分上的每个存储器页面。 更新LUT中的记录以跟踪数据位置。 当PCD进入睡眠状态以节省能量时,可以查询LUT以确定易失性存储器(例如,上部存储体)的第一部分中的哪些特定存储器页面包含数据内容以及易失性存储器的第二部分中的哪些页面 例如,较低的银行)可用于接收内容。 基于该查询,数据在上部存储器页面中的位置是已知的,并且可以被快速迁移到被识别用于接收数据的下部的存储器页面中。
    • 6. 发明申请
    • METHODS AND APPARATUSES FOR MEMORY POWER REDUCTION
    • 用于存储器功率降低的方法和装置
    • WO2016175959A1
    • 2016-11-03
    • PCT/US2016/024569
    • 2016-03-28
    • QUALCOMM INCORPORATED
    • TAHA, AliCHUN, Dexter Tamio
    • G06F1/32
    • G06F1/3275G06F1/3287G06F2212/1028G06F2212/205G11C11/406G11C14/0009G11C14/0054Y02D10/13Y02D10/14
    • Methods and apparatuses for memory power reduction are provided. The apparatus determines whether to store data into a DRAM or an NVRAM during an idle state of a processor based on power consumption by the DRAM in association with refreshing the data in the DRAM and use of the data stored in the DRAM by the processor, based on power consumption by the NVRAM in association with use of the data stored in the NVRAM by the processor, and based on a duty cycle associated with current drawn in a first power state and a second power state in association with the data. The NVRAM is a type of non-volatile random-access memory other than flash memory. The processor stores the data into one of the DRAM or the NVRAM based on the determination whether to store the data in the DRAM or the NVRAM.
    • 提供了用于存储器功率降低的方法和装置。 该设备基于DRAM的功耗与DRAM中的数据相关联以及处理器中存储在DRAM中的数据的使用,确定在处理器的空闲状态期间是否将数据存储到DRAM或NVRAM中 关于由处理器使用存储在NVRAM中的数据以及与数据相关联的与第一功率状态和第二功率状态相关联的电流相关联的占空比,NVRAM的功耗。 NVRAM是除闪存之外的一种非易失性随机存取存储器。 根据是否将数据存储在DRAM或NVRAM中,处理器将数据存储到DRAM或NVRAM中的一个中。
    • 7. 发明申请
    • REDUCING POWER CONSUMPTION OF VOLATILE MEMORY VIA USE OF NON-VOLATILE MEMORY
    • 通过使用非易失性存储器来减少挥发性存储器的功耗
    • WO2014100546A1
    • 2014-06-26
    • PCT/US2013/076827
    • 2013-12-20
    • QUALCOMM INCORPORATED
    • TAHA, AliGANDHI, VipulGIDDI, Phani Babu
    • G06F1/32
    • G06F1/3275G06F1/3206G06F1/3212G06F12/0238Y02D10/13Y02D10/14Y02D10/174Y02D50/20
    • A method includes initiating a transition from an operating mode to a sleep mode at an electronic device that includes a volatile memory and a non- volatile memory. In response to the initiating, data is copied from the volatile memory to the non-volatile memory and a portion of the volatile memory is disabled. Another method includes determining that a low performance mode condition is satisfied at an electronic device that includes a volatile memory that stores a first copy of read-only data and a non-volatile memory that stores a second copy of the read-only data. A memory mapping of the read-only data is updated from the volatile memory to the non- volatile memory. A portion of the volatile memory that stores the first copy is disabled and access of the read-only data is directed to the non-volatile memory instead of the volatile memory.
    • 一种方法包括在包括易失性存储器和非易失性存储器的电子设备处启动从操作模式到休眠模式的转变。 响应于启动,将数据从易失性存储器复制到非易失性存储器,并且易失性存储器的一部分被禁用。 另一种方法包括确定在包括存储只读数据的第一副本的易失性存储器和存储只读数据的第二副本的非易失性存储器的电子设备处满足低性能模式条件。 只读数据的存储器映射从易失性存储器更新到非易失性存储器。 存储第一副本的易失性存储器的一部分被禁用,并且只读数据的访问被引导到非易失性存储器而不是易失性存储器。
    • 8. 发明申请
    • METHOD AND APPARATUS FOR PERFORMING INTER-SYSTEM SEARCHES IN IDLE MODE
    • 用于在空闲模式下执行系统间搜索的方法和装置
    • WO2008116120A2
    • 2008-09-25
    • PCT/US2008/057753
    • 2008-03-20
    • QUALCOMM IncorporatedTAHA, AliNARANG, Mohit
    • TAHA, AliNARANG, Mohit
    • H04Q7/32
    • H04W48/16H04W48/18H04W48/20
    • Techniques for performing searches by a user equipment (UE) are described. The UE may camp on a serving cell for a first radio access technology (RAT) (e.g., GSM) and may periodically perform searches for a second RAT (e.g., WCDMA). In an aspect, the UE may vary the rate of searches for the second RAT based on received signal levels for the first and second RATs. The UE may determine a difference between the received signal levels for the two RATs, compare the difference against at least one threshold, and select a search rate associated with a range within which the difference falls as the rate of searches for the second RAT. In another aspect, the UE may control certain aspects of searches (e.g., determine whether or not to perform searches or the rate of searches) for the second RAT by considering the frequency bands for the two RATs.
    • 描述用于由用户设备(UE)执行搜索的技术。 UE可以驻留在用于第一无线电接入技术(RAT)(例如,GSM)的服务小区上,并且可以周期性地执行第二RAT(例如,WCDMA)的搜索。 在一方面,UE可以基于第一和第二RAT的接收信号电平来改变第二RAT的搜索速率。 UE可以确定两个RAT的接收信号电平之间的差异,将该差异与至少一个阈值进行比较,并且选择与差异下降的范围相关联的搜索速率作为对第二RAT的搜索速率。 在另一方面,UE可以通过考虑两个RAT的频带来控制搜索的某些方面(例如,确定是否执行搜索或搜索速率)。
    • 10. 发明申请
    • METHOD AND APPARATUS FOR OPERATING A DIVERSITY RECEIVER WITH AN EQUALIZER AND A RAKE RECEIVER
    • 使用均衡器和RAKE接收器操作多元接收器的方法和装置
    • WO2008076843A1
    • 2008-06-26
    • PCT/US2007/087478
    • 2007-12-13
    • QUALCOMM IncorporatedTAHA, AliHSU, Chih-Ping
    • TAHA, AliHSU, Chih-Ping
    • H04B7/08H04B1/16
    • H04B7/0871H04B17/309Y02D70/1222Y02D70/1242Y02D70/146Y02D70/444
    • Techniques for operating a diversity receiver are described. A user equipment (UE) may include (i) a first receive chain having an equalizer and a first rake receiver and (ii) a second receive chain having a second rake receiver. The UE may support (i) a first mode in which only the equalizer is used to process a received transmission and (ii) a second mode in which both rake receivers are used to process the received transmission. The UE may determine a first performance metric for the first mode (e.g., based on the performance of the equalizer) and a second performance metric for the second mode (e.g., based on the performance of both rake receivers or only the first rake receiver). The UE may select the first or second mode based on the performance metrics and may power down the second receive chain if the first mode is selected.
    • 描述用于操作分集接收机的技术。 用户设备(UE)可以包括(i)具有均衡器和第一耙式接收器的第一接收链和(ii)具有第二耙式接收器的第二接收链。 UE可以支持(i)其中仅使用均衡器来处理所接收的传输的第一模式,以及(ii)使用两个前置接收机来处理所接收的传输的第二模式。 UE可以确定用于第一模式的第一性能度量(例如,基于均衡器的性能)和用于第二模式的第二性能度量(例如,基于两个耙式接收器或仅第一耙式接收器的性能) 。 UE可以基于性能度量来选择第一或第二模式,并且如果选择了第一模式,则可以关闭第二接收链。