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61.发明申请公开(公告)号：US20190274054A1
公开(公告)日：2019-09-05
申请号：US16415718
申请日：2019-05-17
发明人： Mohamed Adel Salem
摘要： Methods and devices are provided to enable a cooperating group of user equipments (UEs) to access a second spectrum band as frame based equipment (FBE) for device-to-device (D2D) sidelink transmission within the group. In an embodiment, a UE operating as a cooperating UE (CUE) in a cooperating group of UEs receives a group-specific CPC message from the network over a first spectrum band, the group-specific CPC message comprising information related to channel access for transmission of traffic intended for a target UE (TUE). The UE receives traffic intended for the TUE from the network over the first spectrum band and accesses a second spectrum band as FBE in accordance with a set of channel access parameters corresponding to the traffic to relay the traffic to the TUE via D2D sidelink transmission over the second spectrum band.
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62.发明授权公开(公告)号：US10405254B2
公开(公告)日：2019-09-03
申请号：US16017790
申请日：2018-06-25
IPC分类号： H04B7/06 , H04W16/14 , H04W28/08 , H04W40/10 , H04W52/02 , H04W68/02 , H04W72/04 , H04W72/08 , H04W74/08
摘要： Operational and environmental efficiency in virtual radio access networks (VRANs) can be improved by offloading data traffic and/or control signaling between physical transmit points (TPs) of a virtual TP. This may allow one or more physical TPs of the virtual TP to be muted in the downlink or uplink direction, thereby reducing energy consumption. The offloading may be performed during relatively short time-intervals such that physical TP are muted for one or more transmission time intervals (TTIs) before being re-activated. The offloading may also be implemented over longer time-intervals in accordance with a traffic engineering (TE) policy. Further it is possible to re-activate a de-activated downlink transmitter of physical TP by monitoring wireless signals via an activated receiver of the physical TP.
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公开(公告)号：US10306676B2
公开(公告)日：2019-05-28
申请号：US16213647
申请日：2018-12-07
发明人： Jiayin Zhang , Mohamed Adel Salem , Jun Zhu
摘要： A method for dynamically dividing or consolidating sub-bands in-between Clear Channel Assessment (CCA) status measurements upon detection of a CCA bandwidth adjustment condition is provided. The method includes determining at least a single CCA status for at least a single sub-band during a first period, and detecting a CCA bandwidth adjustment condition for dividing the single sub-band into two or more separate sub-bands, where a combination of the two or more separate sub-bands occupies the same frequency band as the single sub-band. The method also includes determining a separate CCA status for each of the two or more separate sub-bands during a second period. An apparatus for performing this method is also provided.
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公开(公告)号：US20180124834A1
公开(公告)日：2018-05-03
申请号：US15411629
申请日：2017-01-20
发明人： Mohamed Adel Salem , Jiayin Zhang
摘要： Methods and systems for access to unlicensed spectrum are described. Each of one or more transmit points (TPs), transmit over an unlicensed spectrum a downlink transmission starting at a downlink transmission starting time after a successful clear channel assessment (CCA) process of each of the one or more TPs. For each of the one or more TPs, the successful CCA process has a CCA process starting time enabling the successful CCA process to be completed at the downlink transmission starting time. The one or more TPs may be licensed assisted access (LAA) TPs, and the starting time corresponds to a starting time of a licensed spectrum subframe.
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65.发明申请公开(公告)号：US20180063858A1
公开(公告)日：2018-03-01
申请号：US15640242
申请日：2017-06-30
发明人： Kelvin Kar Kin Au , David Jean-Marie Mazzarese , Jianglei Ma , Yongxia Lyu , Lixia Xue , Toufiqul Islam , Mohamed Adel Salem , Mohammadhadi Baligh
CPC分类号： H04W72/1215 , H04L1/0006 , H04L5/0023 , H04L5/003 , H04L5/0048 , H04L5/0053 , H04L5/0087 , H04L5/0094 , H04L27/2602 , H04W16/14 , H04W72/1242
摘要： A system and method for wireless communications using resources allocated for different types of traffic that co-exist in the same transmission interval. In one embodiment, first data of a first type of traffic is scheduled in resources that are pre-reserved for a second type of traffic. Control signaling may be used to indicate whether the first type of traffic is scheduled in the resources pre-reserved for the second type of traffic.
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公开(公告)号：US20160285537A1
公开(公告)日：2016-09-29
申请号：US14670148
申请日：2015-03-26
发明人： Amine Maaref , Mohamed Adel Salem , Jianglei Ma
CPC分类号： H04B7/14 , H04B7/15542 , H04L5/001 , H04L5/0055 , H04L5/006 , H04W16/14 , H04W28/0252 , H04W28/0268 , H04W72/0453 , H04W76/16 , H04W84/047 , H04W88/02 , H04W88/08
摘要： Multi-spectrum relays may improve the throughput and resource utilization of networks by relaying data from a transmit point to a receive point using both licensed and unlicensed spectrum. A multi-spectrum relay may receive data from the transmit point on one band, and relay the data to the receive point on another band. The multi-spectrum relay may cache data for re-transmission. Various frequency allocation schemes may be used to leverage the capabilities of multi-spectrum relays. When the complementary band includes higher frequencies than the primary band, access links between a base station and cell-edge users may carry wireless transmissions over the primary band, while access links between relays and cell-edge users may carry wireless transmissions over the complementary band.
摘要翻译： 多频中继可以通过使用许可和非许可频谱将数据从发射点中继到接收点来提高网络的吞吐量和资源利用率。 多频段中继器可以从一个频带上的发射点接收数据，并将数据中继到另一个频带上的接收点。 多频中继可缓存数据以进行重传。 可以使用各种频率分配方案来利用多频谱中继的能力。 当互补频带包括比主频带更高的频率时，基站和小区边缘用户之间的接入链路可以在主频带上承载无线传输，而中继和小区边缘用户之间的接入链路可以在互补频带上进行无线传输 。
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公开(公告)号：US09294161B2
公开(公告)日：2016-03-22
申请号：US13645435
申请日：2012-10-04
CPC分类号： H04B7/024 , H04W72/1231 , H04W72/1247
摘要： A method for operating an interference coordinating entity (ICE) includes partitioning, by the ICE, a cloud radio access network (CRAN) cluster by grouping transmission points (TPs) serving user equipments (UEs) in accordance with a partitioning criterion into at least one virtual transmission point (V-TP) to produce a V-TP set. The UEs to be served are preferably offset from a V-TP boundary. The method also includes saving, by the ICE, V-TP information to a memory.
摘要翻译： 一种用于操作干扰协调实体（ICE）的方法包括：通过根据划分标准将服务于用户设备（UE）的传输点（TP）分组为至少一个，由ICE划分云无线电接入网络（CRAN）群集 虚拟传输点（V-TP）产生V-TP集。 要服务的UE优选地偏离V-TP边界。 该方法还包括由ICE将V-TP信息保存到存储器中。
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68.发明申请Dynamic Energy-Efficient Transmit Point (TP) Muting for Virtual Radio Access Network (V-RAN) 有权用于虚拟无线接入网络（V-RAN）的动态节能发射点（TP）静音公开(公告)号：US20150282045A1
公开(公告)日：2015-10-01
申请号：US14672423
申请日：2015-03-30
CPC分类号： H04W40/10 , H04B7/0697 , H04W16/14 , H04W28/08 , H04W52/0203 , H04W52/0206 , H04W52/0209 , H04W68/02 , H04W72/0406 , H04W72/082 , H04W74/0808 , Y02B70/30 , Y02D70/00 , Y02D70/1262 , Y02D70/21 , Y02D70/23 , Y02D70/25 , Y02D70/326
摘要： Operational and environmental efficiency in virtual radio access networks (VRANs) can be improved by offloading data traffic and/or control signaling between physical transmit points (TPs) of a virtual TP. This may allow one or more physical TPs of the virtual TP to be muted in the downlink or uplink direction, thereby reducing energy consumption. The offloading may be performed during relatively short time-intervals such that physical TP are muted for one or more transmission time intervals (TTIs) before being re-activated. The offloading may also be implemented over longer time-intervals in accordance with a traffic engineering (TE) policy. Further it is possible to re-activate a de-activated downlink transmitter of physical TP by monitoring wireless signals via an activated receiver of the physical TP.
摘要翻译： 通过在虚拟TP的物理传输点（TP）之间卸载数据流量和/或控制信令，可以改善虚拟无线电接入网络（VRAN）中的操作和环境效率。 这可以允许虚拟TP的一个或多个物理TP在下行链路或上行链路方向上被静音，从而降低能量消耗。 卸载可以在相对较短的时间间隔内执行，使得物理TP在被重新激活之前被一个或多个传输时间间隔（TTI）静音。 根据流量工程（TE）策略，卸载也可以在更长的时间间隔上实现。 此外，可以通过经由物理TP的激活的接收器监视无线信号来重新激活物理TP的去激活下行链路发射机。
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