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1. 发明申请

WO2009056968A3 METHOD AND APPARATUS FOR EFFICIENT MULTIMEDIA DELIVERY IN A WIRELESS PACKET NETWORK 审中-公开
公开(公告)号：WO2009056968A3
公开(公告)日：2009-05-07
申请号：PCT/IB2008/002926
申请日：2008-10-31
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , RAMESH, Rajaram , BALACHANDRAN, Kumar , FRANKKILA, Tomas
发明人： RAMESH, Rajaram , BALACHANDRAN, Kumar , FRANKKILA, Tomas
IPC分类号： H04L29/06 , H04W28/06
摘要： The present invention sends multiple versions of a multimedia packet to the base station, and, based on the radio channel and traffic characteristics, an appropriate version of the multimedia packet is selected to send to the mobile station at a given time. In this way, source transmission is improved to instantaneous conditions. The steps of the present invention are performed in conjunction with RTP used for multimedia transmission over internet protocol (IP) networks. In a first embodiment, the multiple versions are sent to the base station in the same RTP packet, and the base station strips out the extraneous versions. In a second embodiment, the base station receives multiple RTP packets having identical information in the packet header in many fields, and selects an appropriate one among these for transmission to the mobile station, discarding the rest.

2. 发明申请

WO2007091968A2 METHOD AND ARRANGEMENT FOR IMPROVING MEDIA TRANSMISSION QUALITY 审中-公开
标题翻译：改进媒体传播质量的方法与安排
公开(公告)号：WO2007091968A2
公开(公告)日：2007-08-16
申请号：PCT/SE2007/050071
申请日：2007-02-06
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , PEISA, Janne , SÅGFORS, Mats , ENSTRÖM, Daniel , JOHANSSON, Ingemar , FRANKKILA, Tomas
发明人： PEISA, Janne , SÅGFORS, Mats , ENSTRÖM, Daniel , JOHANSSON, Ingemar , FRANKKILA, Tomas
IPC分类号： G10L19/00 , H04L1/18
CPC分类号： H04L1/1819 , H04L1/0014 , H04L1/1877
摘要： In a method of improved media frame transmission in a communication network. Initially a plurality of "original" or regular media frames are provided for transmission. According to the invention, robust representations of the provided regular media frames are generated and stored locally. Subsequently, one or more of the regular media frames is/ are transmitted. The invention detects an indication of a loss of a transmitted media frame, and the idea is to transmit, in response to a detected frame loss, a stored robust representation of the lost media frame and/ or a stored robust representation of a subsequent, not yet transmitted, media frame to increase the media quality.
摘要翻译：在通信网络中改进媒体帧传输的方法中。最初提供多个“原始”或常规媒体帧用于传输。根据本发明，提供的常规媒体帧的鲁棒表示被生成并存储在本地。随后，传送一个或多个常规媒体帧。本发明检测到传输的媒体帧的丢失的指示，并且该思想是响应于检测到的帧丢失而发送丢失的媒体帧的存储的鲁棒表示和/或后续的不存在的鲁棒表示传播媒体框架，提高媒体品质。

3. 发明申请

WO2007051495A1 METHOD AND ARRANGEMENT IN A MOBILE TELECOMMUNICATION NETWORK 审中-公开
标题翻译：移动通信网络中的方法和布置
公开(公告)号：WO2007051495A1
公开(公告)日：2007-05-10
申请号：PCT/EP2005/055788
申请日：2005-11-07
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , FRANKKILA, Tomas , JOHANSSON, Ingemar
发明人： FRANKKILA, Tomas , JOHANSSON, Ingemar
IPC分类号： G10L19/00 , H04J3/06
CPC分类号： H04J3/0632
摘要： The present invention relates to a control logic means preferably for a receiver. The receiver comprises a jitter buffer means adapted to receive and buffer incoming frames or packets and to extract data frames from the received packets, a decoder connected to the jitter buffer means adapted to decode the extracted data frames, a time scaling means connected to the decoder adapted to play out decoded speech frames adaptively. The control logic means comprises according to the present invention knowledge of whether a state recovery function is available and that it is adapted to retrieve at least one parameter from at least one of the jitter buffer means, the time scaling means, and the decoder, to adaptively control at least one of an initial buffering time of said jitter buffer means based on the at least one parameter from the jitter buffer means and the knowledge of the availability of the state recovery function, and a time scaling amount of said time scaling means based on the at least one retrieved parameter from the time scaling means or the decoder and the knowledge of the availability of the state recovery function.
摘要翻译：本发明涉及一种优选地用于接收机的控制逻辑装置。接收机包括适于接收和缓冲输入帧或分组并从接收到的分组中提取数据帧的抖动缓冲器装置，连接到抖动缓冲器装置的解码器的解码器，适于解码提取的数据帧;连接到解码器的时间缩放装置适于自适应地播放解码的语音帧。控制逻辑装置包括根据本发明知道状态恢复功能是否可用并且其适于从抖动缓冲器装置，时间缩放装置和解码器中的至少一个获取至少一个参数，以及基于来自抖动缓冲器装置的至少一个参数和状态恢复功能的可用性的知识，自适应地控制所述抖动缓冲器装置的初始缓冲时间中的至少一个，以及所述时间缩放装置的时间缩放量对来自时间缩放装置或解码器的至少一个检索到的参数以及状态恢复功能的可用性的知识。

4. 发明申请

WO2013081518A1 REDUCTION OF PACKET HEADER COMPRESSION OVERHEAD DUE TO HIGH ECN RATE 审中-公开
标题翻译：由于高ECN速率，减少包装头压缩
公开(公告)号：WO2013081518A1
公开(公告)日：2013-06-06
申请号：PCT/SE2011/051466
申请日：2011-12-01
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , JOHANSSON, Ingemar , FRANKKILA, Tomas
发明人： JOHANSSON, Ingemar , FRANKKILA, Tomas
IPC分类号： H04W28/06 , H04W28/02 , H04L29/06 , H04L29/08
CPC分类号： H04L69/04 , H04L47/33 , H04L47/38 , H04L69/22 , H04L69/24
摘要： An ECN flow controller (22) reduces packet header compression overhead due to high ECN rate. It includes an ECN filter (24) configured to redistribute, with at least approximately maintained ECN rate, ECN-CE marks among headers to reduce switching between ECN-CE marked and ECT marked headers.
摘要翻译： ECN流量控制器（22）由于高ECN速率而降低了包头压缩开销。它包括一个ECN滤波器（24），配置为在标题中以至少近似维持的ECN速率重新分配ECN-CE标记，以减少ECN-CE标记和ECT标记的标题之间的切换。

5. 发明申请

WO2010117326A1 METHOD AND ARRANGEMENT FOR SESSION NEGOTIATION 审中-公开
标题翻译：会议谈判的方法和安排
公开(公告)号：WO2010117326A1
公开(公告)日：2010-10-14
申请号：PCT/SE2010/050378
申请日：2010-04-06
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , ENSTRÖM, Daniel , BRUHN, Stefan , FRANKKILA, Tomas
发明人： ENSTRÖM, Daniel , BRUHN, Stefan , FRANKKILA, Tomas
IPC分类号： H04L29/06 , H04W28/18 , H04W76/02
CPC分类号： H04W36/385 , H04L65/1003 , H04L65/1069 , H04W88/181
摘要： In a method of improved session negotiation between first and second clients in a cellular telecommunication system, the two clients negotiating S10 and agreeing upon a first codec type for a session. The first and second clients then initiating the session and exchanging S20 media data frames according to the first codec type. Subsequently, during the initiated session, at least one of the first and second clients providing S30 an indication for a second codec type in at least one subsequent media data frame. Finally, upon receiving and recognizing said indication, the other of said first and second clients switching S40 to the indicated second codec type in a next media data frame, thereby enabling the first and second clients to exchange subsequent media frames utilizing the second codec type.
摘要翻译：在蜂窝电信系统中的第一和第二客户端之间改进的会话协商的方法中，两个客户端协商S10并且同意第一编解码器类型用于会话。然后，第一和第二客户机根据第一编解码器类型启动会话并交换S20个媒体数据帧。随后，在发起的会话期间，第一和第二客户端中的至少一个提供S30在至少一个后续媒体数据帧中的第二编解码器类型的指示。最后，在接收并识别所述指示时，所述第一和第二客户端中的另一个在下一个媒体数据帧中将S40切换到所指示的第二编解码类型，从而使得第一和第二客户端能够利用第二编解码器类型交换后续的媒体帧。

6. 发明申请

WO2008069722A3 RECEIVER ACTIONS AND IMPLEMENTATIONS FOR EFFICIENT MEDIA HANDLING 审中-公开
标题翻译：接收者对有效媒体处理的行动和实施
公开(公告)号：WO2008069722A3
公开(公告)日：2008-07-24
申请号：PCT/SE2007001050
申请日：2007-11-28
申请人： ERICSSON TELEFON AB L M , JOHANSSON INGEMAR , ENSTROEM DANIEL , FRANKKILA TOMAS
发明人： JOHANSSON INGEMAR , ENSTROEM DANIEL , FRANKKILA TOMAS
IPC分类号： H04N7/00
CPC分类号： H04L65/604 , G10L19/005 , G10L19/24 , H04L65/1089 , H04L65/605 , H04L65/80
摘要： A receiver (100) includes a detector (140) for detecting a change in source of incoming media during an on-going communication session, and means to provide a reset signal in order to reset decoder states of a decoder (120) in response to such a detected change before decoding new incoming media. In this way, a state mismatch can be avoided without the need for several active decoder instances in the receiver (100), leading to substantial savings with respect to overall complexity, memory usage and power consumption. This also means that media distortions can be eliminated or at least reduced when the decoded media is finally rendered by a player (130).
摘要翻译：接收器（100）包括检测器（140），用于检测正在进行的通信会话期间进入的媒体的源的变化，以及提供复位信号的装置，以便响应于解码器（120）的解码器状态来重置这种检测到的变化在解码新的传入媒体之前。以这种方式，可以避免在接收器（100）中不需要几个主动解码器实例的状态失配，导致相对于整体复杂性，存储器使用和功耗的显着节省。这也意味着当解码的媒体最终由玩家（130）呈现时，可以消除或至少减少媒体失真。

7. 发明申请

WO2012074442A1 METHOD FOR DETERMINING AN AGGREGATION SCHEME IN A WIRELESS NETWORK. 审中-公开
标题翻译：用于确定无线网络中的聚集方案的方法。
公开(公告)号：WO2012074442A1
公开(公告)日：2012-06-07
申请号：PCT/SE2010/051314
申请日：2010-11-30
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , FRANKKILA, Tomas , ZUO, Yang
发明人： FRANKKILA, Tomas , ZUO, Yang
IPC分类号： H04W28/06
CPC分类号： H04W24/10 , H04L47/14 , H04L47/2416 , H04L47/26 , H04L47/28 , H04L47/283 , H04L47/36
摘要： A method and arrangement for employing media layer adaptation in a wireless communication of media in data packets from a sending node to a receiving node, by determining a fitting frame aggregation scheme in an effective and accurate manner. An arrival time AT and generation time GT are monitored (300) for packets when received at the packet receiving node. A difference ATdiff in the arrival time of consecutive packets and a difference GTdiff in the generation time of the packets, are calculated (302, 304). Then, an inter-arrival measure M. is calculated (306) as the deviation between the arrival time difference ATdiff and generation time difference GTdiff. When the inter-arrival jitter exceeds a preset threshold (Tn), a frame aggregation scheme is determined (310) based on the calculated inter-arrival jitter IA and applied (312) in the packet communication.
摘要翻译：通过以有效和准确的方式确定拟合帧聚合方案，在从发送节点到接收节点的数据分组中的介质的无线通信中采用媒体层适配的方法和装置。当在分组接收节点处接收到数据包时，到达时间AT和生成时间GT被监视（300）。计算连续数据包到达时间的差值ATdiff和数据包生成时间差值GTdiff（302,304）。然后，计算到达到达量度M.（306）作为到达时间差ATdiff与产生时间差GTdiff之间的偏差。当到达之间的抖动超过预设阈值（Tn）时，基于所计算的到达间抖动IA并在分组通信中应用（312）来确定帧聚合方案（310）。

8. 发明申请

WO2008088262A1 DIVIDING RTCP BANDWIDTH BETWEEN COMPOUND AND NON- COMPOUND RTCP PACKETS 审中-公开
标题翻译：化合物和非复合RTCP分组之间的RTCP带宽分配
公开(公告)号：WO2008088262A1
公开(公告)日：2008-07-24
申请号：PCT/SE2007/051001
申请日：2007-12-14
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , FRANKKILA, Tomas
发明人： FRANKKILA, Tomas
IPC分类号： H04L29/08 , H04L12/56 , H04Q7/38
CPC分类号： H04L65/608 , H04L47/193 , H04L47/2416 , H04L47/25 , H04L47/283 , H04L65/80
摘要： An apparatus for controlling utilization of RTCP bandwidth for compound and non-compound RTCP packets is described. This apparatus includes a bandwidth detector (10) determining available RTCP bandwidth and a channel quality detector (12) determining channel quality. A bandwidth divider (14) connected to the bandwidth detector and the channel quality detector divides the available RTCP bandwidth between compound and non-compound RTCP packets based on the determined channel quality.
摘要翻译：描述了一种用于控制复合和非复合RTCP分组的RTCP带宽利用的装置。该装置包括确定可用RTCP带宽的带宽检测器（10）和确定信道质量的信道质量检测器（12）。连接到带宽检测器和信道质量检测器的带宽分配器（14）基于确定的信道质量来划分复合RTCP分组与非复合RTCP分组之间的可用RTCP带宽。

9. 发明申请

WO2008069722A2 RECEIVER ACTIONS AND IMPLEMENTATIONS FOR EFFICIENT MEDIA HANDLING 审中-公开
标题翻译：接收者行为和有效媒体处理的实施
公开(公告)号：WO2008069722A2
公开(公告)日：2008-06-12
申请号：PCT/SE2007/001050
申请日：2007-11-28
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , JOHANSSON, Ingemar , ENSTRÖM, Daniel , FRANKKILA, Tomas
发明人： JOHANSSON, Ingemar , ENSTRÖM, Daniel , FRANKKILA, Tomas
CPC分类号： H04L65/604 , G10L19/005 , G10L19/24 , H04L65/1089 , H04L65/605 , H04L65/80
摘要： A receiver (100) includes a detector (140) for detecting a change in source of incoming media during an on-going communication session, and means to provide a reset signal in order to reset decoder states of a decoder (120) in response to such a detected change before decoding new incoming media. In this way, a state mismatch can be avoided without the need for several active decoder instances in the receiver (100), leading to substantial savings with respect to overall complexity, memory usage and power consumption. This also means that media distortions can be eliminated or at least reduced when the decoded media is finally rendered by a player (130).
摘要翻译：接收器（100）包括用于在正在进行的通信会话期间检测输入媒体的源中的改变的检测器（140），以及用于提供重置信号以重置解码器状态的装置解码器（120）响应于在解码新的传入媒体之前检测到的这种变化。以这种方式，可以避免状态失配，而不需要接收器（100）中的几个活动解码器实例，从而导致整体复杂度，存储器使用和功耗相当大的节省。这也意味着当解码媒体最终由玩家呈现时可以消除或至少减少媒体失真（130）。

10. 发明申请

WO2008147255A1 JITTER-BASED MEDIA LAYER ADAPTATION IN REAL-TIME COMMUNICATION SYSTEMS 审中-公开
标题翻译：基于抖动的媒体层适应实时通信系统
公开(公告)号：WO2008147255A1
公开(公告)日：2008-12-04
申请号：PCT/SE2007/000526
申请日：2007-05-30
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , ENSTRÖM, Daniel , FRANKKILA, Tomas
发明人： ENSTRÖM, Daniel , FRANKKILA, Tomas
IPC分类号： H04L29/06
CPC分类号： H04L29/06027 , H04L43/0835 , H04L43/087 , H04L43/16 , H04L47/10 , H04L47/14 , H04L47/22 , H04L47/2416 , H04L47/283 , H04L47/365 , H04L47/38 , H04L65/4069 , H04L65/602 , H04L65/608 , H04L65/80 , H04W28/18
摘要： It is a basic idea to determine (Sl) the characteristics of a jitter profile measured over a plurality of packets, and classify (S2) the jitter profile based on the determined characteristics as well as information representative of the particular access used for communication between the sender and the receiver. The classified jitter profile is then matched (S3) to an appropriate action for media layer adaptation so that a proper action for media layer adaptation can be initiated (S4).
摘要翻译：确定（S1）在多个分组上测量的抖动曲线的特性的基本思想，并且基于所确定的特性对（S2）抖动分布进行分类，以及表示用于在发件人和接收者。然后将分类的抖动分布匹配（S3）到媒体层适配的适当动作，从而可以启动媒体层适配的适当动作（S4）。

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