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91. 发明授权

US10051517B2 D2D traffic balancing 有权
公开(公告)号：US10051517B2
公开(公告)日：2018-08-14
申请号：US14427943
申请日：2015-02-05
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： Santhan Thangarasa , Muhammad Kazmi , Stefano Sorrentino
IPC分类号： H04W28/08 , H04W76/14 , H04W8/00 , H04W28/02 , H04W88/04 , H04W76/15 , H04W76/02 , H04W40/24
摘要： There is provided a method for balancing device-to-device (D2D) traffic in a communications network. The method is performed by a network device in the communications network. The method comprises acquiring information indicating that a first set of D2D capable wireless devices is present in the communications network. The method comprises acquiring D2D traffic information of the first set of D2D capable wireless devices. The method comprises adapting D2D traffic within the communications network, between a first cell on a first carrier and a second cell on a second carrier in the communications network, based on the D2D traffic information, thereby balancing D2D traffic in the communications network. There is also provided a network device configured to perform such a method and a computer program causing a network device perform such a method.

92. 发明授权

US09961685B2 Progressive resource allocation for vehicular communication 有权
公开(公告)号：US09961685B2
公开(公告)日：2018-05-01
申请号：US14703124
申请日：2015-05-04
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： Stefano Sorrentino , Hieu Do , Ricardo Blasco Serrano
IPC分类号： H04W72/04
CPC分类号： H04W72/048
摘要： A method in a network node is disclosed. The method comprises allocating a pool of radio resources for vehicle-to-other (V2x) communication by a plurality of wireless devices, and dividing the allocated pool of radio resources for V2x communication into a plurality of orthogonal sets of radio resources, each set of radio resources having an associated set identifier comprising one of a plurality of positive integers. The method further comprises assigning one or more radio resource sets to each wireless device among the plurality of wireless devices based at least in part on a radio-compatibility characteristic, and communicating to each wireless device the assigned set of radio resources to use.

93. 发明授权

US09807713B2 Synchronization in communications networks 有权
公开(公告)号：US09807713B2
公开(公告)日：2017-10-31
申请号：US14541313
申请日：2014-11-14
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： Yufei Blankenship , Bengt Lindoff , Stefano Sorrentino
IPC分类号： H04W56/00 , H04L5/00 , H04W4/00 , H04W76/04 , H04L29/06 , H04W76/02 , H04W28/02 , H04W84/18 , H04W52/02 , H04W4/06 , H04W72/04 , H04W72/00
CPC分类号： H04W56/00 , H04L5/003 , H04L63/0428 , H04W4/06 , H04W4/70 , H04W28/0268 , H04W52/0225 , H04W72/005 , H04W72/048 , H04W76/11 , H04W76/14 , H04W76/27 , H04W84/18 , Y02D70/00 , Y02D70/1224 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/21 , Y02D70/22
摘要： According to a first aspect there is presented a method for synchronization in a wireless device-to-device (D2D) based communications network as performed by a first wireless device. The method comprises identifying an attempt to make a network connection on a default sub-channel over a D2D communications interface from a second wireless device. The method comprises transmitting control information on the default sub-channel to the second wireless device, wherein the control information comprises an indicator of an operational sub-channel, and wherein the operational sub-channel is for subsequent D2D communication between the first wireless device and the second wireless device.

94. 发明授权

US09781690B2 User equipment, a network node and methods therein for performing and enabling device-to-device (D2D) communication in a radio communications network 有权
公开(公告)号：US09781690B2
公开(公告)日：2017-10-03
申请号：US14358849
申请日：2014-04-10
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： Stefan Parkvall , Bengt Lindoff , Qianxi Lu , Stefano Sorrentino
IPC分类号： H04W56/00 , H04W76/02
CPC分类号： H04W56/001 , H04W56/002 , H04W56/0045 , H04W76/14
摘要： A method performed by a first user equipment for performing Device-to-Device, D2D, communications with a second user equipment is provided. The first user equipment determines that a valid timing reference is not present in the first user equipment. Also, the first user equipment determines whether a preconfigured timing advance can be used in the D2D communication. Then, when determined that the preconfigured timing advance can be used, the first user equipment transmits a D2D signal to the second user equipment with a timing using the preconfigured timing advance to perform D2D communication.A user equipment, a network node and method therein for enabling D2D communications between user equipments in a radio communications network are also provided.

95. 发明授权

US09723624B2 Wireless device reporting 有权
公开(公告)号：US09723624B2
公开(公告)日：2017-08-01
申请号：US14760133
申请日：2014-10-10
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： David Shrader , Stefano Sorrentino
IPC分类号： G01R31/08 , H04W72/12 , H04W24/10 , H04W76/02
CPC分类号： H04W72/1268 , H04W24/10 , H04W72/1284 , H04W76/14
摘要： There is disclosed a method for operating a wireless device in a wireless communication network. The method comprises configuring, by the wireless device, a reporting time window for transmitting a report to the wireless communication network and determining, by the wireless device, whether data transmission from the wireless device to the wireless communication network is scheduled for a transmission time within the reporting time window, as well as transmitting the report together with the scheduled data transmission if it is determined that such is scheduled for a transmission time within the reporting time window.There are also disclosed corresponding methods and devices.

96. 发明授权

US09681472B2 Method and apparatus for mapping identities to device-to-device synchronization sequences 有权
公开(公告)号：US09681472B2
公开(公告)日：2017-06-13
申请号：US14419863
申请日：2015-01-08
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： Stefano Sorrentino
IPC分类号： H04B5/00 , H04B7/00 , H04B15/00 , H04W76/02 , H04W4/00 , H04W56/00
CPC分类号： H04W76/11 , H04W4/80 , H04W56/0015 , H04W56/0025 , H04W76/14
摘要： In one aspect of the teachings herein, Device-to-Device, D2D, synchronization signals are generated as a function of an abbreviated identifier associated with the D2D synchronization signals, e.g., the abbreviated identifier serves as a synchronization reference identifier or as an abbreviated device identifier for the wireless device transmitting the D2D synchronization signals. Advantageously, the abbreviated identifier is derived from a full identifier, e.g., a full-length device identifier taken from a full identifier space that is larger than the numeric range represented by the abbreviated identifier space. Use of the abbreviated identifier with its smaller numeric range results in more robust synchronization sequence detection at a receiver, and requires less complexity than would be required if sequence detection operated over the full identifier space.

97. 发明授权

US09585152B2 Methods and apparatuses for handling reference signals in a cellular network 有权
标题翻译：用于在蜂窝网络中处理参考信号的方法和装置
公开(公告)号：US09585152B2
公开(公告)日：2017-02-28
申请号：US14260959
申请日：2014-04-24
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： Stefano Sorrentino
IPC分类号： H04W72/04 , H04L27/26 , H04L5/00
CPC分类号： H04W72/048 , H04L5/0035 , H04L5/0051 , H04L5/0091 , H04L27/2613
摘要： Methods and apparatuses for enabling a configured demodulation reference signal to be transmitted from a User Equipment, UE, (202) when served by a base station (200) in a cellular network. The base station sends (2:3) at least one configuration parameter to the UE, which indicates a UE-specific base sequence and/or a UE-specific cyclic shift hopping pattern assigned (2:2) to the UE. The UE then uses the configuration parameters to generate (2:4) and transmit (2:5) the demodulation reference signal based on the UE-specific base sequence and UE-specific cyclic shift hopping pattern. Thereby, orthogonality can be achieved between the transmitted demodulation reference signal and any demodulation reference signals transmitted by other UEs, by using separate UE-specific base sequences and/or UE-specific cyclic shift hopping patterns.
摘要翻译：当由蜂窝网络中的基站（200）服务时，使配置的解调参考信号能够从用户设备，UE（202）发送的方法和装置。基站向UE发送（2：3）至少一个配置参数，该UE指示UE特定的基站序列和/或分配给（2:2）的UE专用的循环移位跳频模式给UE。 UE然后使用配置参数来生成（2:4）并基于UE特定的基站序列和UE特定的循环移位跳频模式发送（2:5）解调参考信号。因此，通过使用单独的UE特定的基站序列和/或UE特定的循环移位跳频模式，可以在发送的解调参考信号和由其他UE发送的任何解调参考信号之间实现正交性。

98. 发明申请

US20160345279A1 RADIO NODE AND METHOD FOR SELECTIVELY PROVIDING SYNCHRONIZATION INFORMATION FOR A DEVICE-TO-DEVICE (D2D) COMMUNICATION 审中-公开
标题翻译：用于选择性地提供用于设备到设备（D2D）通信的同步信息的无线电节点和方法
公开(公告)号：US20160345279A1
公开(公告)日：2016-11-24
申请号：US14428325
申请日：2014-10-31
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： Fredrik Gunnarsson , Zhenshan Zhao , Yunxi Li , Qianxi Lu , Stefano Sorrentino , Qingyu Miao
IPC分类号： H04W56/00 , H04W4/00 , H04W76/02 , H04W8/00
CPC分类号： H04W56/002 , H04W4/70 , H04W8/005 , H04W56/0025 , H04W76/14
摘要： A method performed by a radio node for selectively providing synchronization information for Device-to-Device, D2D, communications between devices in a wireless communications network is provided. The radio node receives, when the radio node is providing synchronization information an indication to stop providing synchronization information for D2D communications. The radio node determines whether to continue to provide synchronization information for D2D communications or not based on the received indication.A radio node for selectively providing synchronization information for Device-to-Device, D2D, communications between devices in a wireless communications network is also provided.
摘要翻译：还提供了用于选择性地提供设备到设备的同步信息的无线电节点，D2D，无线通信网络中的设备之间的通信。

99. 发明授权

US09456371B2 Methods and arrangements for channel estimation 有权
标题翻译：信道估计的方法和布置
公开(公告)号：US09456371B2
公开(公告)日：2016-09-27
申请号：US14581032
申请日：2014-12-23
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： Stefano Sorrentino , George Jongren
IPC分类号： H04W56/00 , H04W24/08 , H04L25/02
CPC分类号： H04L25/0204 , H04L5/0048 , H04L27/2601 , H04L43/028 , H04W16/32 , H04W24/08 , H04W56/001 , H04W56/0095 , H04W88/02
摘要： Some embodiments provide a method for channel estimation in a wireless device. According to the method, the wireless device obtains (1010) an indication that a set of antenna ports, or antenna port types, share at least one channel property. The wireless device then estimates (1020) one or more of the shared channel properties based at least on a first reference signal received from a first antenna port included in the set, or having a type corresponding to one of the types in the set. Furthermore, the wireless device performs (1030) channel estimation based on a second reference signal received from a second antenna port included in the set, or having a type corresponding to one of the types in the set, wherein the channel estimation is performed using at least the estimated channel properties.
摘要翻译：一些实施例提供了一种用于无线设备中的信道估计的方法。根据该方法，无线设备获得（1010）一组天线端口或天线端口类型共享至少一个信道属性的指示。然后，无线设备至少基于从组中包括的第一天线端口接收到的第一参考信号来估计（1020）一个或多个共享信道属性，或者具有与集合中的一种类型对应的类型。此外，无线设备基于从组中包括的第二天线端口接收的第二参考信号执行（1030）信道估计，或者具有与集合中的类型之一相对应的类型，其中信道估计使用估计渠道属性估计最少。

100. 发明申请

US20160156444A1 Signaling of Sequence Generator Initialization Parameters for Uplink Reference Signal Generation 有权
公开(公告)号：US20160156444A1
公开(公告)日：2016-06-02
申请号：US15006569
申请日：2016-01-26
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： Stefano Sorrentino , Fredrik Lindqvist
IPC分类号： H04L5/00 , H04W72/04
CPC分类号： H04L5/0051 , H04B1/0475 , H04B1/7143 , H04L1/0029 , H04L5/0048 , H04L25/03343 , H04L27/2613 , H04W72/0413 , H04W72/0466
摘要： A base station initializes pseudo-random sequence generators on which wireless devices base generation of uplink reference signals. The base station determines a first sequence from a first subset of possible initialization sequences for a sequence generator of a first device, and determines a second sequence from a second subset of possible initialization sequences for a sequence generator of a second device. The range of this second subset spans at least the range of the first subset. The base station further encodes the first sequence as a first set of two or more parameters, and encodes the second sequence as a second set of one or more parameters. This second set includes at least one parameter not included in the first set, and comprises fewer bits than the first set. The base station initializes the sequence generators by transmitting the first and second sets of parameters to the devices.

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