Telefonaktiebolaget Lm Ericsson (publ)

Chunhui Liu

Huaisong Zhu

Qi Zhang

Wei Zhou

Erik A Eriksson

Yipeng Zhang

Yuanchun Xie

Jingye Li

Liping Han

Jian Li

Liang Zhang

Tao Yang

Chen Liu

John Skördeman

Anders Landström

Zhenguo Ma

Zhiyi Zong

Yongqian Chen

Yiliang Chen

Yuan Dong

Yingjun Shi

Zhitao Liu

A method and a terminal device are disclosed for measurement control. According to an embodiment, the terminal device detects, for a cell that is shared by two operators and to be measured by the terminal device, whether frequency bands used by the two operators for the cell are overlapped. When detecting that frequency bands used by the two operators for the cell are overlapped, the terminal device performs measurement on a reference signal from one of the two operators at least at the overlapped portion of the frequency bands. The terminal device reports information about a result of the measurement to the two operators.

Method and terminal device for measurement control

Various embodiments of the present disclosure provide a method for transmission configuration. The method which may be performed by a network node comprises determining one or more uplink transmission parameters for a terminal device based at least in part on downlink information reported by the terminal device. The method may further comprise transmitting configuration information to the terminal device to indicate the one or more uplink transmission parameters.

Determining uplink transmission parameters based on downlink information

The present disclosure provides a method in a network device serving a first cell and a second cell. The method includes: determining that a first User Equipment, UE, in the first cell and a second UE in the second cell are associated with one physical terminal device; and enabling, in response to said determining, the terminal device to perform as the first UE, without enabling the terminal device to perform as the second UE, one or more of: measuring a reference signal from the network device, transmitting a reference signal to the network device, or transmitting a measurement report to the network device.

Network device and method therein

A method implemented by a network node in a communication network is provided. The method comprises: assigning a radio network temporary identity (RNTI) comprised in one of a first number of groups corresponding to an aggregation level to a user equipment (UE) associated with the one group; wherein for the first number of UEs, different UEs are associated with different groups corresponding to different control channel elements (CCEs). In the present disclosure, the number of OFDM symbols used for the PDCCH can be reduced, thereby increasing cell throughout since less PDCCH resource implies more PDSCH resources, and decreasing PDCCH blind detection duration and UE power consumption.

Method and apparatus for resource assignment

Embodiments of a method in an access node of a wireless communication network pre-emptively reduces intercell interference, ICI, in neighboring cells. The access node is configured to transmit downlink traffic to a plurality of user equipments, UEs, in a coverage area of the access node. At least one unscheduled physical resource block, PRB, is detected. Downlink traffic across is diluted across the at least one unscheduled PRB. Finally, transmission power of scheduled PRBs is reduced.

Pre-emptive suppression of inter-cell interference in cellular wireless communication networks

Various embodiments of the present disclosure provide a method for interference avoidance. The method which may be performed by a network node comprises selecting a serving beam for a terminal device from candidate beams reported to the network node by the terminal device, based at least in part on inter-cell interference information of the candidate beams. The method may further comprise informing the terminal device of the selected serving beam.

Method and apparatus for interference avoidance

The present disclosure provides a method in a network device for scheduling terminal devices. The method includes: determining a grouping policy based on one or more attributes of terminal devices served by the network device in a previous time period; dividing terminal devices to be scheduled into a number of groups in accordance with the grouping policy; assigning a set of resources to each of the groups; and scheduling the terminal devices to be scheduled in each of the groups in the set of resources assigned to that group.

Method, network device and network node for scheduling terminal devices

The present disclosure provides a method () in a network node. The method () includes: selecting () a number, N, of beams for data transmission to a terminal device, where N is an integer larger than one; transmitting () to the terminal device Channel State Information-Reference Signal, CSI-RS, having N ports using the N beams; receiving () from the terminal device a first measurement report containing a Rank Indicator, RI, obtained by the terminal device measuring the CSI-RS; and transmitting () data to the terminal device based on the RI using the N beams.

Network node, terminal device and methods therein for data transmission using beamforming

Methods and apparatuses for remote electrical tilt (RET) control are disclosed. According to an embodiment, a network entity obtains beam reports indicating beam candidates suitable for serving terminal devices in a serving area of an access network node. The network entity determines a spatial distribution of the beam candidates based on the beam reports. The network entity determines one or more boundaries dividing the beam candidates into a plurality of groups, based on the spatial distribution. The network entity determines control information related to RET for an antenna array of the access network node, based on the one or more boundaries.

Methods and apparatuses for RET control

Embodiments of the present disclosure provide methods and apparatuses for resource scheduling. A method at a base station comprises determining a passive interference cancellation capability of a User Equipment (UE) having a passive interference issue. The passive interference is coupled into a receive path of the UE from a transmission of at least one signal through a transmit path of the UE. The method further comprises scheduling at least one uplink resource for the UE based on the passive interference cancellation capability.

Method and apparatus for resource scheduling

The present disclosure discloses methods and devices for wireless communication. Specifically, a method for resource allocation at a network device is provided. The method includes allocating a first frequency band to at least one first terminal device utilizing a first radio access technology (RAT), and allocating a second frequency band to at least one second terminal device utilizing a second RAT. The first frequency band is at least partly overlapped with the second frequency band, and the overlapped part of the first and second frequency bands is spatially multiplexed between the at least one first terminal device and the at least one second terminal device.

Method and devices for wireless communication

The present disclosure provides a method at a network device. The method comprises receiving beam information obtained in a plurality of beam management procedures. The beam information comprises information on a plurality of preferred beams of the network device determined by the terminal device in the plurality of beam management procedures. The method further comprises determining speed information of the terminal device based on the beam information obtained in the plurality of beam management procedures. The method further comprises determining a resource configuration of a signal based on the speed information of the terminal device. The signal is a reference signal or a report signal.

Method and network device for signal resource configuration

The present disclosure provides a method in a network device for rank selection. The method includes: adjusting a rank for a transmission to or from a terminal device; and selecting a rank to be used for the transmission based on whether the transmission using the adjusted rank has been successfully received.

Method and network device for rank selection

The present disclosure provides a method () in a network device for uplink inter-cell interference estimation. The network device serves a cell divided into a plurality of sectors each corresponding to an angle range. The method () includes, for a first sector of the plurality of sectors: measuring () an uplink inter-cell interference level; and estimating () an uplink inter-cell interference metric based on the measured uplink inter-cell interference level.

Methods and devices for inter-cell interference estimation

There is provided mechanisms for assigning physical resource blocks to base stations in a cell deployment for transmission of downlink reference signals. A method is performed by a network node. The method comprises obtaining reports from terminal devices in the cell deployment, each report indicating location-wise signal strength measurements of base stations for one of the terminal devices. The method comprises determining, based on the obtained reports, whether to group the physical resource blocks in four sets of physical resource blocks or to group the physical resource blocks in less than four sets of physical resource blocks. The method comprises assigning the determined four or less sets of physical resource blocks to the base stations such that no two adjacent cells in the cell deployment are assigned to the same set of physical resource blocks. The method comprises initiating transmission of the downlink reference signals from the base stations in the assigned physical resource blocks.

Growing community of inventors

Beijing, China

Chunhui Liu