Basestation RSSI and BER feedback signal quality display and transmit diversity
First Claim
1. A method for a fixed wireless access terminal to indicate the quality of a mobile communications link between the fixed wireless access terminal and a basestation, the mobile communications link including a forward link from the basestation to the terminal, and a reverse link from the terminal to the basestation, the method comprising the steps of:
- a) the terminal measuring an RSSI in the forward link and a BER in the forward link;
b) the basestation determining an RSSI in the reverse link and a BER in the reverse link and conveying this to the terminal in a message;
c) the terminal determining a link quality metric on the basis of both the forward link BER and RSSI and the reverse link BER and RSSI; and
d) the terminal displaying the link quality metric.
5 Assignments
0 Petitions
Accused Products
Abstract
A system and method for a fixed wireless access terminal to determine and display to a user forward link and reverse link RSSI and BER signal quality information. The reverse link information is measured by a basestation and transmitted to the terminal in a message. The quality information is displayed to the user with sufficient resolution to allow the user to adjust the location of the fixed wireless access terminal to optimize the quality of the link. The reverse link information may also be used as a basis for performing transmit switch diversity.
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Citations
23 Claims
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1. A method for a fixed wireless access terminal to indicate the quality of a mobile communications link between the fixed wireless access terminal and a basestation, the mobile communications link including a forward link from the basestation to the terminal, and a reverse link from the terminal to the basestation, the method comprising the steps of:
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a) the terminal measuring an RSSI in the forward link and a BER in the forward link; b) the basestation determining an RSSI in the reverse link and a BER in the reverse link and conveying this to the terminal in a message; c) the terminal determining a link quality metric on the basis of both the forward link BER and RSSI and the reverse link BER and RSSI; and d) the terminal displaying the link quality metric. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A fixed wireless access terminal for wireless connection to a basestation over a mobile communications link including a forward link from the basestation to the terminal, and a reverse link from the terminal to the basestation, the terminal comprising:
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a display; circuitry for receiving a message from said basestation containing a reverse link RSST and a reverse link BER; circuitry for measuring a forward link DER and RSSI, determining a link quality metric on the basis of the forward link DER and RSSI and the reverse link DER and RSSI, and displaying the link quality metric on the display. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
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23. A fixed wireless access terminal for wireless connection to a basestation over a mobile communications link including a forward link from the basestation to the terminal, and a reverse link from the terminal to the basestation, the terminal comprising:
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a first transmit antenna and a second transmit antenna; a switch for alternatively connecting the first antenna and said second antenna to said wireless connection; circuitry for receiving a message from the basestation respecting the quality of the reverse link, and for, on the basis of contents of the message, instructing said switch to switch from one transmit antenna to another transmit antenna, or not; wherein the message contains link quality information consisting of a reverse link RSSI measurement and a reverse link BER measurement, wherein said circuitry compares the reverse RSSI measurement and BER measurement to respective predetermined levels, and if either the reverse RSSI measurement is below its predetermined level, or if the BER measurement is above its predetermined level, instructs said switch to switch from one antenna to the other antenna.
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Specification