Abstract:
The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The present disclosure proposes a method and an apparatus for determining channel state information (CSI) to be reported according to a plurality of channel state reporting priority if periodic channel state information reporting collide with each other, and reporting the channel state information.
Abstract:
본 명세서는 무선 통신 시스템에서 자원을 할당하는 방법에 있어서, 기지국이 단말의 상향링크 제어 정보(Uplink Control Information:UCI) 전송을 위한 상향링크 자원 영역을 상기 단말로 할당하는 단계, 상기 상향링크 제어 정보(UCI)는 복수의 하향링크 셀(downlink cell)들과 관련된 정보이며; 및 기지국이 적어도 하나의 상향링크 셀(uplink cell) 상에서 상기 할당한 상향링크 자원 영역을 통해 상기 상향링크 제어 정보(UCI)를 상기 단말로부터 수신하는 단계를 포함하여 이루어지는 것을 특징으로 한다.
Abstract:
The embodiments herein relates to a method in a user equipment (305) for enabling a base station (301) to schedule the user equipment (305) in a wireless communication system (300). The wireless communication system (300) is in Multiple Input Multiple Output, MIMO, mode and comprises four transmit antennas. The user equipment (305) is connected to the base station (301) via a radio carrier (302). The user equipment (305) determines Channel State Information, CSI, based on information about a Common Pilot Indicator CHannel, CPICH, which CSI comprises Channel Quality Information, CQI, a Rank Indicator, RI, a Precoding Channel Indicator, PCI, and an Hybrid Automatic Repeat reQuest ACKnowledgement/Not ACKnowledgement, HARQ ACK/NACK. The user equipment (305) transmits the CSI to the base station (301) over a plurality of Transmission Time Intervals, TTIs, enabling the base station (301) to schedule the user equipment (305).
Abstract:
A wireless-transmit-and-receiving unit (WTRU) supports receiving information via a plurality of multiple-input-multiple-output (MIMO) streams by providing a low-rank feedback report to a base station. The WTRU selects a preferred HS-PDSCH transmission rank, from a subset of ranks that the WTRU supports. The subset includes ranks that are lower than the maximum HS-PDSCH transmission rank supported by the WTRU. For example, for a WTRU that supports rank-4 reception, the subset may include rank-1 and rank-2. The WTRU generates the low-rank feedback report based on the preferred rank, and transmits the report to the base station.
Abstract:
Certain aspects of the present disclosure relate to a technique for communicating Channel State Information (CSI) feedback. In some aspects, the CSI feedback is communicated in a very high throughput (VHT) wireless communications system.
Abstract:
An apparatus and method for selecting a beam group and a subset of beams in a communication system are disclosed. The method includes: measuring channel state information (CSI) on a downlink from a base station (920); identifying a selected beam group out of a set of beam groups according to a wideband property of the CSI (930); identifying a selected subset of beams in the selected beam group according to at least one subband (940). Wherein the characteristic of the set of beam groups depends on a transmission rank and the number of beams in the selected subset of beams is equal to the transmission rank. The method further includes: generating encoded feedback information identifying the selected beam group and the selected subset of beams for each subband in a double codebook format (950), transmitting the encoded feedback information to the base station. A computer program product comprising the computer program code which is configured to cause the apparatus to implement above operations is also disclosed.
Abstract:
A device configured to perform communication operations, the device having a transceiver and a control unit. The transceiver is configured to receive a signal incorporating scheduling grant and antenna weight feedback information from a remote receiver in a wireless communications system. The control unit is configured to verify correct receipt of the signal incorporating the scheduling grant and antenna weight feedback information and to use the antenna weight feedback information to control beamforming operations performed by the device when performing signal transmission operations. A computer program product composed of a computer readable memory medium storing a computer program. The computer program, when executed, is configured to cause a device to receive a signal incorporating scheduling grant and antenna weight feedback information from a remote receiver in a wireless communication system; and to verify correct receipt of the signal and to use the antenna weight feedback information to control beamforming operations performed by the device when performing signal transmission operations.