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公开(公告)号:EP2907334B1
公开(公告)日:2018-12-12
申请号:EP12783686.4
申请日:2012-10-11
发明人: PRYTZ, Mikael , KAZMI, Muhammad , IRNICH, Tim , KARLSSON, Jörgen
CPC分类号: H04W16/14 , H04L47/125 , H04W28/08 , H04W72/0486 , H04W72/06 , H04W72/08
摘要: Methods and nodes for balancing load on channels available for secondary usage by a secondary network (404). A channel handling node (400) determines channel quality metric values for the available channels, which indicate expected utility when the channels are used for radio communication. The channel handling node then adjusts the channel quality metric value of a superior channel with higher expected utility than the other available channels, to indicate equal or lower expected utility than a channel with the next highest expected utility, when the amount of channel queries (Q) from the secondary network exceeds a limit. The channel handling node then returns the adjusted channel quality metric value of the at least one superior channel, in response to a subsequent channel query (Q). A secondary network node (406) of the secondary network that receives channel quality metric values for the available channels, including the adjusted channel quality metric value of the superior channel, can then select a channel for secondary usage based on the received channel quality metric values, and is thus influenced to select a channel other than the at least one superior channel.
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公开(公告)号:EP3407657A1
公开(公告)日:2018-11-28
申请号:EP17741375.4
申请日:2017-01-17
申请人: NTT DOCOMO, INC.
发明人: YASUKAWA, Shimpei , NAGATA, Satoshi , ZHAO, Qun
摘要: There is provided user equipment that supports D2D communication and cellular communication, the user equipment including a receiver that receives a radio parameter for the D2D communication corresponding to radio quality of a downlink signal transmitted from a base station or a propagation delay between the base station and the user equipment; and a communication unit that performs the D2D communication using the received radio parameter for the D2D communication corresponding to the radio quality or the propagation delay.
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公开(公告)号:EP3389327A1
公开(公告)日:2018-10-17
申请号:EP15911744.9
申请日:2015-12-29
发明人: ZHANG, Peng
IPC分类号: H04W72/08
CPC分类号: H04W72/042 , H04B7/0452 , H04B7/0632 , H04B7/0639 , H04W72/08
摘要: This application relates to wireless communications technologies, and in particular, to a terminal device, a network device, a data transmission method, and a wireless communications system. A first terminal device provided in this application includes a transceiver module, configured to receive a data stream of the first terminal device from a second terminal device; and a processing module, configured to process the data stream received by the receiving module, where the second terminal device is configured to receive, from a network device, the data stream that is of the first terminal device and that is sent by the network device by using a multi-user multiple-input multiple-output MU-MIMO technology. The second terminal device participates in MU-MIMO downlink data transmission of the first terminal device, and sends the data stream of the first terminal device to the first terminal device. This avoids a problem that when the second terminal device does not have a data transmission requirement or has a relatively low data transmission requirement, the network device cannot deliver a data stream by using the MU-MIMO technology, or overall throughput performance of a communications system is not high even when the network device delivers data streams by using the MU-MIMO technology.
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公开(公告)号:EP3205163B1
公开(公告)日:2018-09-26
申请号:EP15710018.1
申请日:2015-02-06
IPC分类号: H04W72/08
CPC分类号: H04L5/0048 , H04B7/0452 , H04B7/0632 , H04L27/2602 , H04W24/02 , H04W72/00 , H04W72/08
摘要: Systems and methods related to flexible CSI configuration and feedback are disclosed. In some embodiments, a method of operation of a network node in a cellular communications network to configure Channel State Information Reference Signal (CSI-RS) resources for a wireless device is provided. In some embodiments, the method of operation of the network node comprises configuring a set of CSI-RS resources for the wireless device and dynamically configuring, for the wireless device, measurement purposes for CSI-RS resources comprised in the set of CSI-RS resources configured for the wireless device. In this manner, flexible CSI configuration and, as a result, flexible CSI feedback is provided.
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公开(公告)号:EP2519069B1
公开(公告)日:2018-08-29
申请号:EP10839272.1
申请日:2010-12-09
申请人: NEC Corporation
发明人: NOBUKIYO, Takahiro
CPC分类号: H04W72/10 , H04W72/08 , H04W72/082 , H04W72/085 , H04W88/08
摘要: Provided is a setting method for the usable resource for a communication terminal which, while suppressing an inter-adjacent-cell interference, improves a selection flexibility for a band for the communication terminal subjected to a strong influence of the adjacent-cell interference. A base station, which performs radio communications with a communication terminal within a main communication area, includes: a priority band setting unit that sets a main priority radio resource that can be used for the main communication area on a higher priority basis than for a communication area adjacent to the main communication area, and acquires a particular priority radio resource that can be used for at least one particular communication area adjacent to the main communication area on a higher priority basis than for a communication area adjacent to the at least one particular communication area; and a usable band setting unit that acquires a communication quality difference regarding the communication terminal between communication quality related to the main communication area and communication quality related to the at least one particular communication area, and sets the main priority radio resource to which at least one particular priority radio resource is added, as usable radio resources for the communication terminal when at least one condition that the communication quality difference is larger than a threshold value is fulfilled.
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公开(公告)号:EP3361798A1
公开(公告)日:2018-08-15
申请号:EP16853313.1
申请日:2016-07-08
申请人: Sony Corporation
发明人: TAKANO, Hiroaki
CPC分类号: H04W72/046 , H04J11/00 , H04L5/001 , H04W16/28 , H04W24/10 , H04W52/16 , H04W72/04 , H04W72/0413 , H04W72/042 , H04W72/048 , H04W72/08
摘要: [Object] To provide a mechanism that enables a beam appropriate for downlink transmission to be more efficiently selected.
[Solution] An apparatus including: an acquisition unit configured to acquire setting information from a base station; and a selection support unit configured to transmit an uplink reference signal to be used for selecting a beam to be used by the base station in downlink transmission using at least one first unit frequency band of a group including a plurality of unit frequency bands indicated by the setting information.-
公开(公告)号:EP3358903A1
公开(公告)日:2018-08-08
申请号:EP16860062.5
申请日:2016-06-28
申请人: SK Telecom Co., Ltd.
发明人: CHOI, Chang-soon , NA, Minsoo
CPC分类号: H04W72/082 , H04W72/04 , H04W72/0453 , H04W72/08 , H04W72/12 , H04W74/08 , H04W74/0808
摘要: The present disclosure in some embodiments selects some channels that may include the maximum frequency bandwidth of a radio signal, from a plurality of channels of an unlicensed band, and applies a license-assisted access method to some channels. Some embodiments provide a radio signal transmission apparatus and method for effectively avoiding narrowband interference between a Wi-Fi signal and a radio signal having a maximum frequency bandwidth wider than that of the Wi-Fi signal.
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公开(公告)号:EP3326416A4
公开(公告)日:2018-07-18
申请号:EP15898647
申请日:2015-07-22
发明人: GARCIA VIRGILE , FRENGER PÅL , ZHANG ZHAN
CPC分类号: H04W72/1205 , H04W72/02 , H04W72/04 , H04W72/0446 , H04W72/0453 , H04W72/048 , H04W72/08 , H04W72/1242 , H04W74/08 , H04W84/12
摘要: The embodiments disclose a method for scheduling radio resources in a radio communication network. The method comprises obtaining two or more MAC modes to be used for scheduling radio resources; and partitioning the radio resources into multiple resource blocks, each of which associates with one of the two or more MAC modes. Each of the two or more MAC modes is used to schedule associated resource block. Meanwhile, the embodiments also disclose a method for transmitting traffic in the radio communication network. The method comprises selecting a MAC mode from a list of active MAC modes for the traffic. Each MAC mode in the list of active MAC modes associates with respective resource blocks and is used to schedule the associated resource block. The traffic is transmitted over resource scheduled by the selected MAC mode.
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公开(公告)号:EP3307004A4
公开(公告)日:2018-07-04
申请号:EP15899137
申请日:2015-07-24
申请人: HUAWEI TECH CO LTD
发明人: SUN WEIJUN
CPC分类号: H04W72/082 , H04W72/0446 , H04W72/0453 , H04W72/06 , H04W72/08 , H04W74/0816 , H04W74/0825 , H04W88/04 , H04W92/18
摘要: The present invention provides a method for sending a signal by user equipment and user equipment. The method includes: within an obtained channel detection cycle, detecting a first interference strength within system bandwidth and a second interference strength on each sub-band within the system bandwidth; comparing the first interference strength with a first interference threshold; if the first interference strength is less than the first interference threshold, selecting, from the system bandwidth according to the second interference strength on each sub-band within the system bandwidth, N first sub-bands that receive relatively small interference; and sending a signal on the N first sub-bands. In consideration of interference within the entire bandwidth and interference to each sub-band, when interference to the entire system is relatively small, a transmission collision is avoided. In addition, selecting sub-bands that receive small interference for signal transmission further reduces transmission interference, thereby effectively improving data transmission reliability.
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公开(公告)号:EP3280209A4
公开(公告)日:2018-07-04
申请号:EP16772881
申请日:2016-03-29
申请人: NTT DOCOMO INC
发明人: YASUKAWA SHIMPEI , HARADA HIROKI , NAGATA SATOSHI , ZHAO QUN
CPC分类号: H04W40/22 , H04W24/10 , H04W72/02 , H04W72/08 , H04W76/10 , H04W76/14 , H04W88/04 , H04W92/18
摘要: A user apparatus that is used in a mobile communication system that supports D2D communication, and that includes a capability for becoming a relay apparatus for relaying data communication between a remote user apparatus and a base station, including: a transmission unit configured to transmit a measurement resource that is used for the remote user apparatus to select a relay apparatus from among candidates of relay apparatuses, and a layer 2 address of the user apparatus; and a response unit configured to receive, from the remote user apparatus, an assignment request of an address for data communication by the relay, and to transmit information of the address to the remote user apparatus.
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