[특허]Transceiver algorithms of antenna arrays

[미국특허] Transceiver algorithms of antenna arrays 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H04L-005/12 H04L-023/02
출원번호	US-0195224 (1994-02-10)
발명자 / 주소	Forssen Ulf (Saltsjo-Boo SEX) Gudmundson Bjorn (Sollentuna SEX)
출원인 / 주소	Telefonaktiebolaget LM Ericsson (Stockholm SEX 03)
인용정보	피인용 횟수 : 120 인용 특허 : 0

초록 ▼

A transceiver for improving the spectral efficiency and the capacity of cellular communication systems is disclosed. The transceiver uses an antenna array for communicating in a cellular communication system with a plurality of mobile stations. In addition, the transceiver contains a spatial filter connected to an antenna array wherein the spatial filter has as many outputs as there are array elements and as many inputs as there are spatial channels. A splitter then splits data to be transmitted to each mobile station into a number of parallel data streams, the number of parallel data streams corresponds with the number of spatial channels in the system, wherein the data streams, are delayed based upon uplink measurements. Finally, power allocators are provided for allocating transmission power to each possible channel based upon long-term SNR measurements on the uplink.

대표청구항 ▼

A receiver using antenna arrays in a cellular-communication system including a plurality of mobile stations comprising: means for receiving a signal; spatial filter means with up to one input for each antenna element and one output for each spatial channel; adaption means for adjusting the spatial filter means in order to enhance a desired spatial channel while suppressing other spatial channels; channel estimation means for computing estimated impulse responses for each desired channel based on training sequences and said output from said spatial filters; and MLSE detector means in said receiver for each of the mobile stations for detecting a data signal broadcast from each mobile station in said received signal based on said estimated impulse responses and said outputs of said spatial filter means.

이 특허를 인용한 특허 (120) 인용/피인용 타임라인 분석

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