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1. 发明申请

WO2022213019A1 IMPROVEMENT IN PACKET DATA CONVERGENCE PROTOCOL CONFIGURATION FOR INCREASING CHANNEL THROUGHPUT WITH ROBUST HEADER COMPRESSION 审中-公开
公开(公告)号：WO2022213019A1
公开(公告)日：2022-10-06
申请号：PCT/US2022/071140
申请日：2022-03-14
申请人： QUALCOMM INCORPORATED
发明人： SAH, Deepak , SIVAKUMAR, Nagamanikandan , JAIN, Rahul
IPC分类号： H04W28/06 , H04L69/04 , H04L69/22 , H04W76/19 , H04W80/02
摘要： A wireless communication utilizes robust header compression efficiently with improved improvements in packet data convergence protocol configuration for increasing channel throughput. A user equipment (UE) receives a configuration indicating a first listing of header generic options that are supported between the UE and a first base station. The UE obtains a first packet including a first uncompressed header that indicates header parameters. The UE determines whether the header parameters in the first uncompressed header corresponds to at least one header generic option in the first listing of header generic options. The UE communicates the first packet that may have a first compressed header based on a first header compression profile or an uncompressed header depending on whether the header parameters in the first uncompressed header corresponds to at least one header generic option in the first listing of header generic options.

2. 发明申请

WO2017053691A1 TIMESTAMP REPAIR MECHANISM IN CASE OF DECOMPRESSION FAILURE 审中-公开
标题翻译： TIMESTAMP维修机构在解体失败的情况下
公开(公告)号：WO2017053691A1
公开(公告)日：2017-03-30
申请号：PCT/US2016/053289
申请日：2016-09-23
申请人： QUALCOMM INCORPORATED
发明人： BRESSANELLI, Dominique, Francois , BATHWAL, Saket , SAH, Deepak
IPC分类号： H04W28/06 , H04L29/06
CPC分类号： G06F11/0793 , G06F11/0709 , G06F11/0751 , H04L69/04 , H04L69/22 , H04W8/30 , H04W28/06
摘要： Methods, systems, and devices may implement a header repair mechanism to deal with a loss of successive compressed headers (e.g., due to radio interface). The present methods and apparatus exploit the fact that once a correct timestamp (TS) from a previous decompression success (called "last successfully decomp_TS") is known, another (e.g., a subsequent) TS should be in the form: last successfully decomp_TS + n*min_TS_STRIDE, where n is a positive integer if the estimated sequence number (SN) is higher than the last successfully decompressed SN, and a negative integer if the estimated SN is lower than the last successfully decompressed SN, and min_TS_STRIDE is the expected minimum TS increment, which is known and directly related to the medium sample rate and frame rate, for example.
摘要翻译：方法，系统和设备可以实现报头修复机制来处理连续压缩报头的丢失（例如，由于无线电接口）。本方法和装置利用以下事实：一旦来自先前的解压缩成功（称为“最后成功的分解_TS”）的正确时间戳（TS）已知，则另一个（例如，后续的）TS应该是以下形式：最后成功地解压缩_ n * min_TS_STRIDE，其中如果估计的序列号（SN）高于上一次成功解压缩的SN，则n是正整数，如果估计的SN低于最后的成功解压缩的SN，则为负整数，并且min_TS_STRIDE是期望的最小值 TS增量，例如已知并直接与中等采样率和帧速率相关。

3. 发明申请

WO2022272197A1 ROHC OPTIMIZATION TO AVOID DECOMPRESSION FAILURE 审中-公开
公开(公告)号：WO2022272197A1
公开(公告)日：2022-12-29
申请号：PCT/US2022/072082
申请日：2022-05-03
申请人： QUALCOMM INCORPORATED
发明人： SAH, Deepak , JAIN, Rahul , SIVAKUMAR, Nagamanikandan
IPC分类号： H04L69/04 , H04L69/22
摘要： A transmitter device may be configured to perform to robust header compression optimization to improve channel throughput. In some aspects, the transmitter device may establish a first base context between the transmitter device and a receiver device, wherein a first context identifier is assigned to the first base context, establish a replication context between the devices, wherein the replication context is derivable from the first base context and a second context identifier is assigned to the replication context, and identify a new context. Further, the transmitter device may reassign the first context identifier to the new context, disassociate the second context identifier from the first context identifier, establish a second base context between the devices, wherein a third context identifier is assigned to the second base context, and associate, based on the replication context being derivable from the second base context, the second context identifier to the third context identifier.

4. 发明申请

WO2018132232A1 ROBUST HEADER COMPRESSION (ROHC) TECHNIQUES FOR A DYNAMICALLY CHANGING EXTENSION BIT 审中-公开
公开(公告)号：WO2018132232A1
公开(公告)日：2018-07-19
申请号：PCT/US2017/067415
申请日：2017-12-19
申请人： QUALCOMM INCORPORATED
发明人： BRESSANELLI, Dominique Francois , SAH, Deepak , BATHWAL, Saket
IPC分类号： H04L29/06
CPC分类号： H04W28/06 , H04L1/1812 , H04L65/608 , H04L65/80 , H04L69/04 , H04L69/22
摘要： Methods, systems, and devices for wireless communication are described. Different robust header compression (RoHC) schemes may be used when a change in a header extension flag between packets of a communication session is determined. For example, a transmitting device may determine a value of a header extension flag in a packet has changed with respect to header extension flags in preceding packets. Upon detecting the change in the header extension flag, the device may compress the header using different RoHC schemes. For instance, the device may compress the header by reverting to an initialization and refresh (IR) state. Additionally or alternatively, the device may compress the header using a compression profile that refrains from compressing a certain portion of the header. In some cases, the RoHC scheme used for compressing the header may be based on how frequently the value of the extension flag changes between packets.

5. 发明申请

WO2021142063A1 INCREASING THROUGHPUT EFFICIENCY IN A PDCP CHANNEL WITH ROHC TCP PROFILE 审中-公开
公开(公告)号：WO2021142063A1
公开(公告)日：2021-07-15
申请号：PCT/US2021/012419
申请日：2021-01-07
申请人： QUALCOMM INCORPORATED
发明人： JAIN, Rahul , SAH, Deepak , KAMMA, Ganesh Babu
IPC分类号： H04L29/06 , H04L29/08 , H04W80/02 , H04W28/06 , H04L1/08 , H04W88/06 , H04L1/1812 , H04L69/04 , H04L69/161 , H04L69/168 , H04L69/22 , H04L69/326 , H04W80/06 , H04W80/08
摘要： Various aspects include methods for Transmission Control Protocol (TCP)/ Internet Protocol (IP) (TCP/IP) packet transmission and compression of headers for TCP/IP packet transmission. Various embodiments may include a packet data convergence protocol (PDCP) layer of a processing device applying least significant bit (LSB) encoding to a TCP Timestamp (TS) option of a TCP/IP packet using an offset parameter of zero to generate a compressed header in response to determining that a TCP TS field of the TCP/IP packet and a TCP TS field of a last TCP/IP packet transmitted have a same value. In some embodiments, a Timestamp Value (TSVal) field or a Timestamp Echo Reply (TSEcho) field of the TCP TS option of the compressed header may have a size of one byte.

6. 发明申请

WO2017019486A1 RECOVERY MECHANISM FOR ROHC WITH LOST INITIALIZATION AND REFRESH MESSAGES 审中-公开
标题翻译：用于ROHC的恢复机制与失去初始化和刷新消息
公开(公告)号：WO2017019486A1
公开(公告)日：2017-02-02
申请号：PCT/US2016/043509
申请日：2016-07-22
申请人： QUALCOMM INCORPORATED
发明人： BRESSANELLI, Dominique, Francois , BATHWAL, Saket , SAH, Deepak
IPC分类号： H04W28/06 , H04L29/06
CPC分类号： H04L5/0055 , H03M7/3079 , H03M7/6047 , H03M13/6306 , H03M13/6312 , H04L1/1685 , H04L1/1854 , H04L69/04 , H04L69/22 , H04W28/06
摘要： A recovery mechanism for robust header compression (ROHC) is disclosed for wireless communication systems. The ROHC recovery mechanism may allow a receiver and/or transmitter in the wireless systems to establish or reestablish a context of a packet transmission session when an initialization and refresh message is lost. In the ROHC recovery mechanism, upon receiving a compressed packet that is not associated with a context, a receiver sends a message to a transmitter suggesting the transmitter to transition to another mode. Upon receiving a subsequent packet transmission that is not associated with a context, the receiver sends another message indicating that a context has not been established or has been lost. The transmitter may then send the receiver necessary information to establish a context for the packet transmission session.
摘要翻译：公开了用于无线通信系统的鲁棒报头压缩（ROHC）的恢复机制。当初始化和刷新消息丢失时，ROHC恢复机制可允许无线系统中的接收机和/或发射机建立或重新建立分组传输会话的上下文。在ROHC恢复机制中，在接收到与上下文不相关联的压缩分组时，接收机向发射机发送消息，建议发射机转换到另一模式。在接收到与上下文不相关联的后续分组传输时，接收机发送指示上下文尚未建立或丢失的另一消息。然后，发射机可以发送接收机必要的信息以建立用于分组传输会话的上下文。

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