[특허]Method to control uplink transmissions in a wireless communication system

[미국특허] Method to control uplink transmissions in a wireless communication system 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H04Q-007/20
출원번호	US-0851100 (2001-05-08)
발명자 / 주소	Gopalakrishnan, Nandu Kadaba, Srinivas R. Rudrapatna, Ashok N. Sundaram, Ganapathy Subramanian
출원인 / 주소	Lucent Technologies Inc.
대리인 / 주소	Malvone Christopher N.
인용정보	피인용 횟수 : 77 인용 특허 : 9

초록 ▼

Efficient data communication in wireless communication system is provided by using centralized control of data communications, such as packet switched services, over the uplink channel (mobile station (MS) to base station (BS)). A multiple access protocol is used where packet data mobile stations make requests for uplink channel resources. The request messages transmitted by the MSs inform the BS of service parameters. Examples of such service parameters are available transmit power at the MS, the amount of data to transmit and Quality of Service (QoS). The BS then processes the received request messages and performs interference management calculations to determine the portion of the BS's receive power budget that can be allocated to the data user requesting service. These calculations are used to control the amount of interference seen at the base station, to assign a data rate to the user and to aid scheduling algorithms in computing service order priorities. Any scheduling algorithm may be used; for example, scheduling may be based on the amount of data to be transmitted, the age of the data or the service priority associated with the mobile station. The interference control is used to prevent the occurrence of catastrophic levels of interference while maximizing the utilization of resources on the uplink.

대표청구항 ▼

1. A method for controlling uplink data communications from a first user station, comprising the steps of:receiving a reverse link data traffic channel request comprising traffic data size information, capability information of the first user station, and information from which power available at the first user station for data traffic on the reverse link can be determined,using the received traffic data size information, the capability information of the first user station, and the information from which the power available at the first user station for data traffic on the reverse link can be determined to compute both a rate at which the first user station can transmit data and a certain time when the first user station can transmit data, the rate and the certain time being computed so as to control the level of interference while maximizing resources on the uplink;transmitting to the first user station information that comprises an indication of when and at what rate it can transmit data; andtransmitting an increase transmit power command to a plurality of other user stations in anticipation of the data transmission by the first user station. 2. The method of claim 1 wherein the traffic data size information, the capability information of the first user station, and the information from which the power available at the first user station for data traffic on the reverse link can be determined are received on the same channel. 3. The method of claim 1 wherein the traffic data size information, the capability information of the first user station, and the information from which the power available at the first user station for data traffic on the reverse link are received are received on multiple channels. 4. The method of claim 3 wherein the multiple channels are distinguished using time. 5. The method of claim 3 wherein the multiple channels are distinguished using Walsh codes. 6. The method of claim 1 wherein the information from which the power at the first user station for data traffic on the reverse link can be determined comprises reverse pilot channel transmit power information. 7. The method of claim 1 wherein the information transmitted to the first user station further comprises a transmit level to be used by the first user station for data transmission. 8. The method of claim 1 wherein the information transmitted to the first user station further comprises a data transmit start time. 9. The method of claim 1 wherein the information transmitted to the first user station further comprises a duration for which the first user station is to transmit data.

이 특허에 인용된 특허 (9) 인용/피인용 타임라인 분석

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Chuah Mooi Choo, Method for establishment of the power level for uplink data transmission in a multiple access system for communications networks.
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[미국특허] Method to control uplink transmissions in a wireless communication system 원문보기

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[미국특허] Method to control uplink transmissions in a wireless communication system 원문보기

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