H04J11/0059

Inter-UE interference cancellation

Interference cancellation occurs for devices, where the source of the interference is another UE. The victim UE receiver identifies subframes vulnerable to potential interference from other UEs. Candidate resource blocks in the identified vulnerable subframes are listed. Interference is cancelled for edge resource blocks and valid contiguous resource blocks.

Network architecture, methods, and devices for a wireless communications network
12231284 · 2025-02-18 · ·

Methods and apparatus in a fifth-generation wireless communications network, including an example method, in a wireless device, that includes determining a reporting quality threshold for a parameter related to channel state information (CSI); performing a measurement for each of a plurality of beams from a first predetermined set of beams for evaluation; evaluating the measurement for each of the plurality of beams against the reporting quality threshold; discontinuing the performing and evaluating of measurements in response to determining that the reporting quality threshold is met for one of the beams, such that one or more beams in the first predetermined set of beams are not measured and evaluated; and reporting, to the wireless communications network, CSI for the one of the beams.

INTERFERENCE REDUCTION METHOD USED BY BASE STATION AND BASE STATION USING THE SAME

The disclosure is directed to an interference reduction method used by a base station, and a base station using the same method. In one of the exemplary embodiments, the disclosure is directed to an interference reduction method used by a base station. The method would include not limited to: receiving a first reference signal information associated with an interfering transmitter node; creating a cross-correlation matrix based at least on the first reference signal information and on a second reference signal information, wherein the second reference signal information is associated with an intended transmitter node; and generating an improved channel transfer function by applying the cross-correlation matrix to an estimated channel transfer function, wherein the estimated channel transfer function is associated with a received transmission from the intended transmitter node, and the improved channel transfer function is associated with the received transmission from the intended transmitter node.

Method and Node for Supporting Network Assisted Interference Cancellation
20170094549 · 2017-03-30 ·

The present invention relates to a method for supporting network assistance interference cancellation at a first wireless device served by a first radio network node of a wireless communication network. A transmission of a second radio network node of the wireless communication network directed to a second wireless device interferes with a transmission of the first radio network node directed to the first wireless device. The method is performed in the second radio network node and comprises determining (610) whether to transmit network assistance information related to the transmission of the second radio network node to support interference cancellation at the first wireless device, and transmitting (620) the network assistance information to the first wireless device based on the determining.

RECEIVER, TRANSMITTER AND RADIO COMMUNICATION METHOD
20170085333 · 2017-03-23 · ·

Provided are a receiver, a transmitter and a radio communication method capable of using non-orthogonal multiple access while suppressing cost increase and processing delay. A mobile station 200A receives non-orthogonal signals, also receives a reference signal to be used for interference cancellation, and extracts the non-orthogonal signal addressed to the mobile station 200A from the received non-orthogonal signals by demodulating and cancelling the radio signal addressed to another mobile station. In addition, the mobile station 200A demodulates the extracted non-orthogonal signal addressed to the mobile station 200A on the basis of the reference signal. The reference signal is multiplexed in the same radio resource block as a resource block allocated to the non-orthogonal signals, and is multiplexed in the radio resource block only when at least one signal is scheduled in the radio resource block.

INTER-UE INTERFERENCE CANCELLATION
20170078055 · 2017-03-16 ·

Interference cancellation occurs for devices, where the source of the interference is another UE. The victim UE receiver identifies subframes vulnerable to potential interference from other UEs. Candidate resource blocks in the identified vulnerable subframes are listed. Interference is cancelled for edge resource blocks and valid contiguous resource blocks.

Cross correlation nulling for interference resolution

Systems and methods generate corrected channel transfer functions by cross-correlation nulling. In an example system, a first receiver node (which may be a wireless base station) receives first expected reference signal information associated with an interfering transmitter node (which may be a wireless user equipment) and creates a correction matrix based on the first expected reference signal information associated with the interfering transmitter node and on second expected reference signal information associated with an intended transmitter node. The correction matrix can then be applied to an estimated channel transfer function associated with a received transmission from the intended transmitter node to generate a corrected channel transfer function associated with the received transmission from the intended transmitter node. The first receiver node can use the corrected channel transfer function in decoding received transmissions including, for example, use in performing interference resolution.

Hybrid orthogonal/non-orthogonal multiple access for radio signal transmission and reception
09553660 · 2017-01-24 · ·

Provided are a receiver, a transmitter and a radio communication method capable of using non-orthogonal multiple access while suppressing cost increase and processing delay. A mobile station 200A receives non-orthogonal signals, also receives a reference signal to be used for interference cancellation, and extracts the non-orthogonal signal addressed to the mobile station 200A from the received non-orthogonal signals by demodulating and cancelling the radio signal addressed to another mobile station. In addition, the mobile station 200A demodulates the extracted non-orthogonal signal addressed to the mobile station 200A on the basis of the reference signal. The reference signal is multiplexed in the same radio resource block as a resource block allocated to the non-orthogonal signals, and is multiplexed in the radio resource block only when at least one signal is scheduled in the radio resource block.

Inter-UE interference cancellation

Interference cancellation occurs for devices, where the source of the interference is another UE. The victim UE receiver identifies subframes vulnerable to potential interference from other UEs. Candidate resource blocks in the identified vulnerable subframes are listed. Interference is cancelled for edge resource blocks and valid contiguous resource blocks.

Mitigation of interference at a first user equipment based on information of scheduled uplink transmissions by a second user equipment

Disclosed are techniques for communication. In an aspect, a first UE determines information (e.g., from an external device, or via the first UE's own energy sensing) associated with scheduled uplink transmissions on a set of symbols by a second UE. The first UE performs measurements on at least some of the scheduled uplink transmissions during a first subset of the set of symbols where no DL signals are received by the first UE. The first UE receives at least one DL signal during a second subset of the set of symbols, and mitigates interference associated with the at least one DL signal based on the measurements.