Intel Corporation

Other

Apple Inc.

Shanshan Zheng

Qinghua Li

Senjie Zhang

Hongming Zheng

Guangjie Li

Xintian Eddie Lin

Alexei Vladimirovich Davydov

Yuan Zhu

Xin Zhou

Min Huang

Minnie Ho

Jun Shi

Hui Guo

Feng Zhou

Sun C Chan

Xiaoyun May Wu

Sai Luo

May Wu

Xiaofeng Liu

Jiacheng Wang

Chunxiao Lin

Li Shang

Xu Sunny Zhang

An apparatus for use in a radio aggregation unit (RAU) of a cloud radio access network (Cloud-RAN or C-RAN), the cloud-RAN including a radio cloud center (RCC) and a plurality of radio remote systems (RRS) coupled to the RCC, wherein each RRS comprises an RAU coupled to a plurality of Remote Radio Units (RRUs) is disclosed. The apparatus comprises an input circuit configured to receive a first scheduling result from the RCC and a scheduling circuit configured to generate a second scheduling result for scheduling the one or more UEs in the coverage area of the RAU. Further, the apparatus comprises a processing circuit configured to selectively schedule a select UE from one or more UEs in the coverage area of the RAU, based on the first scheduling result from the RCC or the second scheduling result or an integration of the first scheduling result and the second scheduling result, based on a predetermined threshold associated with a receipt time of the first scheduling result from the RCC at the RAU.

Distributed scheduling method for fronthaul-based C-RAN wireless network architecture

A MIMO beamforming method comprises receiving at a base station information regarding a difference between an ideal beamforming matrix and an averaged beamforming direction, using the information to construct a beamforming matrix at the base station, and performing a beamforming operation using the reconstructed beamforming matrix. Alternatively, the method comprises computing at a subscriber station an averaged beamforming direction, computing at the subscriber station a quantization index corresponding to a differential matrix in a differential codebook, and transmitting the quantization index across a wireless channel of the wireless network. The differential codebook may be constructed by identifying a codebook center and transforming a predefined codebook that is stored in a memory of a component of the wireless network.

MIMO beamforming method and method of constructing a differential codebook for a wireless network

According to some embodiments, a communication modulemay be configured to transmit data packet traffic and a management modulemay be configured to shape the data packet traffic transmitted by the communication module. The management modulemay shape the data packet traffic by buffering data packets routed at different times to the communication modulebased on at least one power management factor.

Shaping data packet traffic

Techniques for a precoding scheme for wireless communications are described. A method and apparatus may comprise a first device for a communications system to determine a beamforming structure for a closed loop transmit beamforming scheme using channel information, one or more scaling factors and one or more integers to represent a complex vector. The beamforming structure may include a codeword, a codebook and a codeword index. Other embodiments are described and claimed.

Method and apparatus using a base codebook structure for beamforming

An embodiment of the present invention provides a method, comprising using an adaptive codebook for beamforming for communications in wireless networks.

Techniques utilizing adaptive codebooks for beamforming in wireless networks

An embodiment of the present invention provides a method used in transmit beam forming, comprising, providing differential feedback by using variable differential codebooks across a plurality of feedbacks wherein the differential codebooks may have different shapes, and/or spans, and/or the numbers of codewords across feedbacks.

Techniques utilizing step size adaptation for differential beamforming in wireless networks

A base station is capable of unifying a single-user MIMO scheme with a multi-user MIMO scheme by receiving a Rank-1 CQI values from one or more subscriber stations. The base station also receives preceding vectors from the subscriber stations, and then determines which of the subscriber stations has a best Rank-1 CQI value. The base station then determines a beam forming matrix to use based at least in part on the vectors received from the subscriber station having the best Rank-1 CQI value. The base station then broadcasts data to the subscriber station using the beam forming matrix corresponding to the subscriber station having the best Rank-1 channel quality indicator to implement single-user MIMO in one or multiple streams to that subscriber station, or to the subscriber stations having the best Rank-2 channel quality indicators to implement multi-user MIMO in multiple streams.

Channel aware multiple user MIMO scheme unified with single user closed loop MIMO

Embodiments of the present invention provide for link adaptation computations accounting for retransmission error-control techniques to be employed in transmission sequences utilizing the adapted link. Other embodiments may be described and claimed.

Link adaptation for retransmission error-control technique transmissions

Embodiments of the present invention provide for computing spatial covariances of intersymbol interference (ISI) and using the computed spatial covariances for ISI mitigation. Other embodiments may be described and claimed.

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Beijing, China

Shanshan Zheng