최소 단어 이상 선택하여야 합니다.
최대 10 단어까지만 선택 가능합니다.
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
DataON 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Edison 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0165422 (2008-06-30) |
등록번호 | US-9042400 (2015-05-26) |
발명자 / 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 | 피인용 횟수 : 0 인용 특허 : 427 |
A communications system improves performance of detecting a signal having an indication of a request to change communications states by making at least two positive identifications of the request in a given time frame. The system may further improve performance by applying a difference in power leve
A communications system improves performance of detecting a signal having an indication of a request to change communications states by making at least two positive identifications of the request in a given time frame. The system may further improve performance by applying a difference in power levels for a non-request state (i.e., steady state or ‘control hold’ state) versus a request state (i.e., ‘request to change’ state). In one particular application, a base station determines a request to change communications states with a reasonably high probability of detection and a reasonably low probability of false detection. The system has a reduced number of erroneous communications states, such as erroneous traffic channel allocations. The detection technique is compatible with 1xEV-DV systems and I-CDMA systems, but general enough to support systems employing various other communications protocols used in wired and wireless communications systems.
1. A wireless user device comprising: circuitry configured to transmit signals having different formats in time intervals to a base station;wherein each time interval includes at least one slot;wherein at least one of the different formats is configured to include an indication that the wireless use
1. A wireless user device comprising: circuitry configured to transmit signals having different formats in time intervals to a base station;wherein each time interval includes at least one slot;wherein at least one of the different formats is configured to include an indication that the wireless user device is requesting resources to transmit user data;wherein in the time intervals that the signals are transmitted no user data is transmitted;wherein at least two of the different formats are associated with a different power offsets;wherein the circuitry is configured to receive information indicating resources to transmit user data in response to transmitting the indication requesting resources; andwherein the wireless user device is assigned an orthogonal sequence and the transmitted signals are derived at least from the orthogonal sequence. 2. The wireless user device of claim 1 wherein other user devices are assigned other orthogonal sequences. 3. The wireless user device of claim 1 wherein the transmitted signals are further derived from a pseudo noise sequence. 4. The wireless user device of claim 1 wherein the requesting resources indication is repeated until the information indicating user data transmission resources is received. 5. The wireless user device of claim 1 wherein the signals are not transmitted in an access procedure. 6. A method of wireless communications comprising: transmitting signals having different formats in time intervals to a base station;wherein each time interval includes at least one slot;wherein at least one of the different formats is configured to include an indication that the wireless user device is requesting resources to transmit user data;wherein in the time intervals that the signals are transmitted no user data is transmitted;wherein at least two of the different formats are associated with a different power offset;wherein the wireless user device is configured to receive information indicating resources to transmit user data in a response to transmitting the indication requesting resources; andwherein the wireless user device is assigned an orthogonal sequence and the transmitted signals are derived at least from the orthogonal sequence. 7. The method of claim 6 wherein other user devices are assigned other orthogonal sequences. 8. The method of claim 6 wherein the transmitted signals are further derived from a pseudo noise sequence. 9. The method of claim 6 wherein the requesting resources indication is repeated until the information indicating user data transmission resources is received. 10. The method of claim 6 wherein the signals are not transmitted in an access procedure.
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