Telefonaktiebolaget Lm Ericsson (publ)

Other

Yipeng Zhang

Huaisong Zhu

Angelo Centonza

Yang Hu

Lei Xiao

Chunhui Liu

Yanyan Zhu

Yi Wang

Min Huang

Chen Liu

Zhenguo Ma

Kangqi Liu

Zhi Ge

Gen Yin

Xin Yin

Wenming Cui

Yiliang Chen

Xiaoye Huo

Daimeng Wang

Yaxin Zhou

Salman Habib

Yongjian Wang

Zhian Mi

Wenhong Qu

The present disclosure provides a method () at a first network node and a method () at a second network node. The method () at the first network node comprises performing () scheduling in a first frequency band and providing () information related to a result of the scheduling to the second network node. The method () at the second network node comprises obtaining () information related to a result of scheduling by the first network node in a first frequency band and determining (), based at least on the information, a size of a guard band between the first frequency band and a second frequency band to be scheduled by the second network node.

Methods and devices for wireless communication

Embodiments of the present disclosure provide a method in a base station for coordinating resources in a wireless communications system with carrier aggregation in which a first group of terminal devices is served by a primary cell and one or more secondary cells under control of the base station. The method comprises obtaining information indicating arrival of a second group of terminal devices at coverage of the base station. A speed of any terminal device of the second group is higher than a speed of any terminal device of the first group. The method also comprises releasing resources on at least one secondary cell of the one or more secondary cells and allocating the released resources to the second group of terminal devices.

Method and apparatus for coordinating resources

The present disclosure proposes a method, a network element, and a non-transitory computer readable storage medium for scheduling a user equipment (UE) for transmission. The method comprises: determining, for the UE, a first downlink channel status at a first time point and a second downlink channel status at a second time point which is later than the first time point, respectively, determining, for the UE, a temporal coherence between the first downlink channel status and the second downlink channel status; and scheduling the UE based on the determined temporal coherence.

Method and network element for user equipment scheduling

A method and an access network node are disclosed for beam control. According to an embodiment, the access network node determines first spatial domain information of a channel between a first terminal device and the access network node, based on second spatial domain information of the channel estimated by uplink signals received previously from the first terminal device at multiple time points. The access network node determines beamforming weights for the first terminal device based on the first spatial domain information.

Method and access network node for beam control

Various embodiments of the present disclosure provide a method for multi-user multi-antenna transmission. The method which may be performed by a network node comprises calculating parameters for multi-user multi-antenna transmission, according to measurement information reported by a first set of terminal devices. The method further comprises selecting, from the first set of terminal devices, a second set of terminal devices to which the multi-user multi-antenna transmission is to be applied, based at least in part on performance gain estimated according to the parameters for multi-user multi-antenna transmission.

Method and apparatus for multi-user multi-antenna transmission

A method for managing a Massive Multiple Input Multiple Output (M-MIMO) base station is disclosed. The method comprises receiving from a neighbour base station a notification of load conditions at the neighbour base station () and obtaining measurements on communication resources associated with the neighbour base station (). The method further comprises determining whether there exists within a spatial distribution of traffic served by the neighbour base station a region having a concentration of traffic which is above a threshold level (), and, if such a region exists, and if a condition for load transfer from the neighbour base station is fulfilled, causing at least one reference signal transmitted by the M-MIMO base station to be transmitted towards the determined region with a signal strength sufficient to trigger handover of a device in the determined region to the M-MIMO base station ().

Managing a massive multiple input multiple output base station

Embodiments of the present disclosure provide methods, apparatus and computer readable storage medium for controlling data retransmission in a multi-user system. A method comprises determining whether data transferred by any of multiple users are received unsuccessfully. The multiple users share a same resource in a feedback channel, for carrying feedback information of whether or not data transferred by respective users are received successfully. When data transferred by any of the multiple users are received unsuccessfully, the method also comprises causing data retransmission in a first retransmission mode or a second retransmission mode. In the first retransmission mode, positive feedback is sent via the same resource to the multiple users, and adaptive retransmission is triggered for the users whose data are received unsuccessfully. In the second retransmission mode, negative feedback is sent via the same resource to the multiple users, so that non-adaptive retransmission is triggered for the multiple users.

Method and apparatus for controlling data retransmission in multiuser MIMO system

A method and apparatus for music generation may include steps of receiving any length of input; recognizing pitches and rhythm of the input; generating a first segment of a full music; generating segments other than the first segment to complete the full music; generating connecting notes, chords and beats of the segments of the full music and handling anacrusis; and generating instrument accompaniment for the full music, and comprise a music generating system to realize the steps of music generation.

Method and apparatus for music generation

The present disclosure provides a method implemented in a wireless communication device for determining an Angle of Arrival (AOA) of a wireless signal received at the wireless communication device. The method comprises estimating the AOA of the wireless signal, determining that the estimated AOA is ambiguous and acquiring signal strength measurements for the wireless signal received at two other wireless communication devices, which are located substantively symmetrically about a normal of the wireless communication device's antenna array. The method further comprises disambiguating the estimated AOA based on a comparison of the acquired signal strength measurements. The present disclosure also provides the wireless communication device as well as a Radio Base Station (RBS) comprising the wireless communication device.

AOA determination method and associated wireless communication device and radio base station

A method and an apparatus in a base station of a cellular radio system for identifying whether user equipment, UE, is in a first UE group or a second UE group. A speed of any UE in the first UE group is higher than a speed of any UE in the second UE group. The method comprises: detecting one or more handover failure events of at least one of the first UE group and the second UE group; determining whether there is any UE misidentified in the first or second UE group based on the one or more handover failure events; and in response to determining that there is a UE misidentified in the first or second UE group, adjusting at least one of the criteria of identifying a UE as in the first UE group and the criteria of identifying a UE as in the second UE group.

Growing community of inventors

Beijing, China

Yipeng Zhang