METHODS AND NODES FOR BALANCING LOAD ON CHANNELS

    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

    IPC分类号: H04W16/14 H04W72/08 H04W72/04

    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.

    USER EQUIPMENT AND COMMUNICATION METHOD
    2.
    发明公开

    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.

    IPC分类号: H04W72/08 H04W4/04 H04W92/18

    CPC分类号: H04W4/04 H04W72/08 H04W92/18

    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.

    TERMINAL DEVICE, NETWORK DEVICE, DATA TRANSMISSION METHOD, AND WIRELESS COMMUNICATION SYSTEM

    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

    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.

    BASE STATION, COMMUNICATION TERMINAL, USABLE RADIO RESOURCE SETTING METHOD, AND BASE STATION CONTROL PROGRAM

    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

    IPC分类号: H04W72/08 H04W72/10 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.

    METHOD FOR USER EQUIPMENT TO SEND SIGNAL, AND USER EQUIPMENT

    公开(公告)号:EP3307004A4

    公开(公告)日:2018-07-04

    申请号:EP15899137

    申请日:2015-07-24

    发明人: SUN WEIJUN

    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.