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US 10,320,451 B2Granted
Downlink channel parameters determination for a multiple-input-multiple-output (MIMO) system
AssigneeIntel Corporation
InventorsQinghua Li, Xintian E. Lin, Guangjie Li, Kuilin Clark Chen, Xiaoyun May Wu
Life of this patent
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Abstract
Embodiments of methods and apparatus for providing downlink channel parameters determination for downlink channels associated with a multiple-input-multiple-output (MIMO) system are generally described herein. Other embodiments may be described and claimed.
Claims13
An evolved NodeB (eNB) comprising:
- an antenna;
- and
- a processor coupled with the antenna, the processor to:
- process uplink channel quality information that is based at least in part on channel quality of uplink spatial channels or data streams;
- facilitate transmission, on one or more downlink channels of a number of downlink channels, of a downlink signal to a subscriber station using downlink parameters that are determined based on the uplink channel quality information;
- and
- identify, based on an uplink message received from a subscriber station, feedback information corresponding to the downlink signal, wherein the feedback information is only for a subset of channels of the number of downlink channels, and wherein the number of the subset of channels is less than the number of downlink channels.
4 more elements
An apparatus to be employed in a base station, the apparatus comprising:
- a receiver to collect uplink channel quality information of one or more uplink channels of a multiple-input-multiple-output (MIMO) system employed by the base station hosting the apparatus to communicate with a subscriber station, wherein the uplink channel quality information is based at least in part on channel quality of uplink spatial channels or data streams;
- and
- a computation block coupled to the receiver to compute, based at least in part on the uplink channel quality information, downlink channel parameters that include a number of downlink channels usable to transmit signals from the base station and a modulation and coding scheme for use by the base station to communicate with the subscriber station via one or more downlink channels of the number of downlink channels;
- wherein the receiver is further to receive an uplink message from the subscriber station that is to include feedback information only for a subset of downlink channels of the number of downlink channels usable to transmit signals from the base station.
1 more element
Dependencies are inferred from the claim text.