Abstract:
Embodiments of a millimeter-wave (mmW) communication device and methods for intelligent control of transmit power and power density are generally described herein. In some embodiments, a mmW base station includes a beamforming processor that is to configure a large-aperture array antenna for multi-beam transmissions at mmW frequencies to a plurality of user equipment (UE). The beamforming processor may allocate each UE a non-interfering spectral portion of a full channel bandwidth that is substantially less than the full channel bandwidth and perform multi-beam beamforming to concurrently direct a plurality of multi-user multiple-input multiple-output (MU-MIMO) antenna beams to the UEs for a concurrent transmission of data streams to the UEs within their allocated spectral portion in accordance with a transmit power allocation.
Abstract:
본 발명은 무선 통신 시스템에 대한 것으로, 보다 상세하게는 상향링크 전력 제어 방법 및 이를 위한 장치가 개시된다. 본 발명의 일 실시예에 따른 무선 통신 시스템에서 단말이 상향링크 전송 전력 제어를 수행하는 방법은, 복수개의 서브프레임 세트에 대한 설정 정보를 기지국으로부터 수신하는 단계; 서브프레임 인덱스 j에서 전송전력제어(TPC) 정보를 상기 기지국으로부터 수신하는 단계; 및 상기 TPC 정보에 기초하여, 서브프레임 인덱스 i에서의 상향링크 채널에 대한 전송 전력을 결정하는 단계를 포함할 수 있다. 상기 TPC 정보는, 상기 복수개의 서브프레임 세트 중에서, 상기 서브프레임 인덱스 i가 속한 제 1 서브프레임 세트에 연관된 전력 제어 프로세스에 적용될 수 있다.
Abstract:
본 발명은 무선 통신 시스템에 대한 것으로, 보다 상세하게는 상향링크 전력 제어 방법 및 이를 위한 장치가 개시된다. 본 발명의 일 실시예에 따른 무선 통신 시스템에서 단말이 상향링크 전송 전력 제어를 수행하는 방법은, 시스템 정보 블록을 통하여 제 1 상향링크-하향링크(UL-DL) 설정 정보를 기지국으로부터 수신하는 단계; 하향링크 HARQ(Hybrid Automatic Repeat and reQuest) 동작을 위한 제 2 UL-DL 설정 정보를 상기 기지국으로부터 수신하는 단계; 전송전력제어(TPC) 명령을 상기 기지국으로부터 수신하는 단계; 및 상기 제 1 UL-DL 설정 정보 및 상기 TPC 명령에 기초하여 제 1 상향링크 채널에 대한 상향링크 전송 전력을 결정하고, 상기 제 2 UL-DL 설정 정보 및 상기 TPC 명령에 기초하여 제 2 상향링크 채널에 대한 상향링크 전송 전력을 결정하는 단계를 포함할 수 있다.
Abstract:
Power control schemes for D2D communications are described. The schemes control the transmission power of a UE during D2D communications in a manner that reduces interference while maintaining the D2D communications link and the cellular link with the eNB. Open-loop and/or closed-loop techniques are employed.
Abstract:
A method of operating a wireless communication system is disclosed (Figure 6). The method includes receiving a virtual cell identification (VCID) parameter (600) from a remote transmitter. A base sequence index (BSI) and a cyclic shift hopping (CSH) parameter (604,606) are determined in response to the VCID. A pseudo-random sequence is selected in response to the BSI and CSH (610,612). A reference signal is generated using the selected pseudo-random sequence (614).
Abstract:
The invention relates methods for maximum output level reporting by a mobile terminal in a mobile communication system. The invention is also providing apparatus for performing these methods, and computer readable media the instructions of which cause the apparatus to perform the methods described herein. In order to allow for maximum output level reporting, a power management related power backoff value is first calculated for one radio technology by referring to a reception quality level set for communication via the other radio technology; thereafter a lower and upper bounds of a maximum output power level is calculated, then the maximum output power level ( P CMAX ) for communication is set within the determined lower and upper bounds and finally the set maximum output power level is reported to a base station wherein the lower bound ( P CMAX_L ) may be calculated using MPR =0 dB , A-MPR =0 dB , and optionally Δ T c =0 dB .
Abstract:
An electronic device may be operable to communicate over a physical medium and to regulate the transmission of a message onto the physical medium. The device may access the medium in accordance with a CSMA scheme, wherein one or more values of one or more CSMA parameters may be determined based on the result of a comparison of a received search token to data stored in the communication device. The message may be a response to a received request message, and the search token may have been received in the request message. A value of the CSMA parameter(s) may be determined based on the result of a comparison of the score and one or more thresholds. The threshold(s) may have been received in the request message. The value(s) of the CSMA parameter(s) may be determined based on one or more initial values contained in the received request message.
Abstract:
An electronic device may utilize or support adaptive use of forward error correction (FEC) in a resource-constrained network. The adaptive FEC use may comprise determining whether use of FEC encoding in transmissions from another electronic device to the electronic device is necessary, desirable, and/or feasible, and when use of FEC encoding is deemed feasible and either necessary or desirable, instructing the another electronic device to utilize FEC encoding when transmitting signals destined for the electronic device. Use of FEC encoding may be determined to be feasible, necessary and/or desirable based on power loss associated with the communications from the another electronic device; based on determination of latency associated with the communications from the another electronic device; and/or based on power and/or processing related resources in the electronic device. The electronic device may separately and selectively apply FEC encoding to transmissions to the another electronic device.