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Method and apparatus for transmitting information simultaneously to multiple destinations over shared wireless resources

A technology for sending data and frequency resources, which is applied in radio transmission systems, space transmit diversity, diversity/multi-antenna systems, etc., can solve the problems of high complexity and difficult implementation of DPC, and achieve the improvement of spatial multiplexing order and optimization Performance metrics, effects of high transmitter throughput

Inactive Publication Date: 2010-03-31
LUCENT TECH INC
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Problems solved by technology

The well-known DPC is a nonlinear technology with very high complexity and difficult to implement

Method used

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  • Method and apparatus for transmitting information simultaneously to multiple destinations over shared wireless resources
  • Method and apparatus for transmitting information simultaneously to multiple destinations over shared wireless resources
  • Method and apparatus for transmitting information simultaneously to multiple destinations over shared wireless resources

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Embodiment Construction

[0027] Although the principles of example embodiments of the present invention may be particularly adapted to, and may be described in, a wireless communication system based on UMTS evolved UTRA technologies, standards and techniques, and may be described in this example context, the example embodiments shown and described herein are only are illustrative and by no means limiting. Example embodiments are also applicable to other radio networks and / or developing fourth generation (4G) wireless communication systems, such as 802.16e, 802.16m, WiMax, and EV-DO Revision C. Thus, it will be apparent to those skilled in the art that various modifications may be made for application to other wireless communication systems and that various modifications may be conceived from the teachings herein.

[0028] The term "user" as used hereinafter may be considered synonymous with and is sometimes referred to hereinafter as a mobile station, mobile device, mobile user, user equipment (UE), s...

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Abstract

In a method for transmitting data, data intended for each user in a set of users is simultaneously transmitted on a plurality of spatial using common time and frequency resources during a first transmission time interval. At a user, a data stream transmitted is received on a plurality of spatial channels, wherein the plurality of spatial channels share common time and frequency resources during agiven transmission interval.

Description

technical field Background technique [0001] A Multiple-Input Multiple-Output (MIMO) link refers to a communication system with multiple antennas at the transmitter and receiver. MIMO links are a known efficient way to increase the link capacity of a wireless link for a given bandwidth and power budget. The increase in capacity is obtained by forming multiple spatial channels or eigenmodes that share a common radio frequency resource. [0002] Multiple antenna systems can provide many advantages, including spatial diversity, spatial multiplexing, and beamforming. Spatial diversity refers to the ability to collect independently received samples that contain the same transmitted information (ie, the same transmitted data). By combining different independently received samples, the effects of channel fading can be reduced. [0003] In spatial multiplexing, different data is sent on each of multiple spatial channels. These spatial channels can lead to a single user to increas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/06
CPCH04B7/0697H04B7/0665H04B7/0417H04B7/0452H04B7/0626
Inventor 弗德里科·伯卡迪霍华德·C·黄马瑟奥·特里瓦拉多
Owner LUCENT TECH INC
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