MULTIPOINT TRANSMISSION IN WIRELESS COMMUNICATION

    公开(公告)号:EP3681050A1

    公开(公告)日:2020-07-15

    申请号:EP20159371.2

    申请日:2012-09-30

    IPC分类号: H04B7/024 H04W52/14

    摘要: Embodiments contemplate wireless transmit/receive unit (WTRU) transmissions of different types of uplink channels and/or signals in a system deployment where multiple destination points may exist. Some embodiments contemplate that a WTRU may select the destination point of a transmission on a dynamic basis. In one or more systems where destination point selection from among multiple potential destination points may be possible for a WTRU transmission, some embodiments contemplate the determination of the handling of hybrid automatic repeat request (HARQ) retransmissions and for different power headroom reporting mechanisms. Embodiments also contemplate the reduction and/or inhibition of WTRU transmissions to destination points to which the WTRU may have lost connectivity.

    RANDOM ACCESS PROCEDURES IN WIRELESS SYSTEMS

    公开(公告)号:EP2826288B1

    公开(公告)日:2018-12-05

    申请号:EP13714410.1

    申请日:2013-03-15

    摘要: A wireless transmit/receive unit (WTRU) may detect cell congestion by selecting a preamble type as a function of priority level, transmitting the preamble to a serving cell, receiving a random access response (RAR) from the serving cell, determining a congestion state of the serving cell as a function of the received RAR, and/or responding to the congestion state of the serving cell. RACH functionality may be improved by allocating one or more sets of Physical RACH (PRACH) resources to a WTRU. The WTRU may configure the additional PRACH resources based on the allocation. A WTRU may determine a second set of PRACH resources based at least in part on a first set of PRACH resources. A WTRU may determine additional sets of PRACH preambles and may utilize modified PRACH preambles and/or modified PRACH preamble formats. The WTRU may signal additional PRACH resources.

    METHODS, APPARATUS AND SYSTEMS FOR PERFORMING MULTI-RADIO ACCESS TECHNOLOGY CARRRIER AGGREGATION
    14.
    发明公开
    METHODS, APPARATUS AND SYSTEMS FOR PERFORMING MULTI-RADIO ACCESS TECHNOLOGY CARRRIER AGGREGATION 审中-公开
    用于执行多无线电接入技术载波聚合的方法,装置和系统

    公开(公告)号:EP3319395A1

    公开(公告)日:2018-05-09

    申请号:EP17204055.2

    申请日:2011-11-23

    IPC分类号: H04W88/06 H04W76/15

    摘要: A method of managing carrier aggregation for a multi-radio access technology (RAT) wireless transmitter/receiver unit (WTRU) is disclosed. The method may include: receiving, by the WRTU over a primary channel associated with a RAT of a first type, provisioning information for provisioning a supplementary channel associated with a RAT of a second type; establishing the supplementary channel associated with the RAT of the second type based on the received provisioning information; and wirelessly exchanging, by the WRTU, first data associated with a communication over the primary channel via the RAT of the first type, while wireless exchanging second data associated with the communication over the supplementary channel via the RAT of the second type.

    摘要翻译: 公开了一种管理多无线电接入技术(RAT)无线发射机/接收机单元(WTRU)的载波聚合的方法。 该方法可以包括:由WRTU通过与第一类型的RAT相关联的主信道接收用于供应与第二类型的RAT相关联的辅助信道的供应信息; 基于接收到的供应信息建立与第二类型的RAT相关联的补充信道; 以及由所述WRTU经由所述第一类型的RAT无线地交换与在所述主要信道上的通信相关联的第一数据,同时经由所述第二类型的RAT通过所述补充信道无线交换与所述通信相关联的第二数据。

    CELL DETECTION, IDENTIFICATION, AND MEASUREMENTS FOR SMALL CELL DEPLOYMENTS
    16.
    发明公开
    CELL DETECTION, IDENTIFICATION, AND MEASUREMENTS FOR SMALL CELL DEPLOYMENTS 审中-公开
    CELL检测,鉴定和三围为小细胞INSERTS

    公开(公告)号:EP2982180A1

    公开(公告)日:2016-02-10

    申请号:EP14724904.9

    申请日:2014-04-03

    IPC分类号: H04W48/16

    摘要: Cell detection information, such as cell identity, frequency, dormant/active mode, etc. may be determined. This cell detection information may be reported based on properties of a received Auxiliary Synchronization Signal (AuSS) or discovery signal. The received signal may be processed as a function of its timing, for example, with respect to timing of a serving cell. A WTRU may obtain cell detection information for a neighbor cell. A cell may also be detected by surrounding WTRUs. A WTRU may determine timing of cell reactivation from a detected property of the AuSS or discovery signal. A WTRU may trigger an RRC procedure upon selecting a dormant but temporarily reactivated cell. An eNB may transmit AuSS for a dormant cell based on detection of signals received from neighbor cells. Quasi-colocation (QCL) demodulation may be performed based on the detected signal. The on/off state of a cell may be indicated.

    METHODS FOR MOBILITY CONTROL FOR WI-FI OFFLOADING IN WIRELESS SYSTEMS
    17.
    发明公开
    METHODS FOR MOBILITY CONTROL FOR WI-FI OFFLOADING IN WIRELESS SYSTEMS 审中-公开
    移动性管理方法无线系统中WiFi卸载

    公开(公告)号:EP2896247A1

    公开(公告)日:2015-07-22

    申请号:EP13770586.9

    申请日:2013-09-13

    IPC分类号: H04W48/08 H04W88/06

    摘要: Systems, methods, and instrumentalities are provided to implement wireless off-loading. A WTRU may send a first Wi-Fi measurement report to a mobile communication network. The first Wi-Fi measurement report comprises one or more of an identity of a Wi-Fi node, a signal strength value, or a load status. The WTRU may receive a Wi-Fi connection command from the mobile communication network. The Wi-Fi connection command may include one or more of an identity of a candidate AP, security information of the candidate AP, a priority value, a channel value, or a delay timer. The WTRU may select one of the received Wi-Fi network identities for association and may attempt to associate with the selected Wi-Fi network identity. The WTRU may further receive a request to initiate pre-authentication. The WTRU may initiate pre-authentication with a Wi-Fi node. The WTRU may send a second Wi-Fi measurement report to the mobile communication network.

    MOBILE RELAY HANDOVER
    20.
    发明公开
    MOBILE RELAY HANDOVER 审中-公开
    手机相对安全

    公开(公告)号:EP2742729A1

    公开(公告)日:2014-06-18

    申请号:EP12751660.7

    申请日:2012-08-10

    IPC分类号: H04W36/00

    摘要: Managing a handover (e.g. over a Un or Uu connection or interface) of a mobile (moving) relay, MRN, from an eNB (source eNB) to another eNB (target eNB). The source eNB or donor eNB (DeNB) may provide a backhaul link to the mobile relay, MRN, and the MRN may provide an access link to a user equipment (UE). To manage the handover, access information (e.g. Donor eNB, DeNB, cell list) may be received (from an operation and maintenance entity, OAM), and a determina¬ tion may be made regarding whether one or more target eNBs may be capable of handling the relay based on the access information (i.e. whether it is relay capable, relay accessible, supports relays or not). A target eNB, that may be capable of handing the relay based on the determination, may be selected from the one or more target eNBs to handover the relay to where the selected target eNB may have a communication (backhaul) link with the source eNB. The relay may be handed over from the source eNB to the selected target eNB using the communication link between the source eNB and selected target eNB. The relay may be configured to use radio access network (RAN) shar¬ ing, a mobility management entity (MME) may be selected; and/or a EUTRAN radio access bearer (E-RAB) may be modified.