Controlling access point transmit power based on received access terminal messages
First Claim
1. A method of communication, comprising:
- transmitting data on a forward link, wherein the data is transmitted by an access point on a first carrier frequency;
transmitting beacons on a beacon channel, wherein the beacons are transmitted by the access point on a second carrier frequency;
receiving messages from at least one access terminal at the access point, wherein the messages are indicative of channel quality on the second carrier frequency; and
controlling transmit power of the access point based on the received messages, wherein the transmit power is controlled for transmissions on at least the first carrier frequency.
1 Assignment
0 Petitions
Accused Products
Abstract
Transmit power for an access point is controlled based on information received by the access point. For example, an access point may employ one or more algorithms that use messages received from nearby access terminals to maintain an acceptable tradeoff between providing an adequate coverage area for access point transmissions and mitigating interference that these transmissions cause at nearby access terminals. Here, the access point may employ a network listen-based algorithm upon initialization of the access terminal to provide preliminary transmit power control until sufficient information is collected for another transmit power control algorithm (e.g., an access terminal assisted algorithm). Also, the access terminal may employ an active access terminal protection scheme to mitigate interference the access point may otherwise cause to a nearby access terminal that is in active communication with another access point.
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Citations
73 Claims
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1. A method of communication, comprising:
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transmitting data on a forward link, wherein the data is transmitted by an access point on a first carrier frequency; transmitting beacons on a beacon channel, wherein the beacons are transmitted by the access point on a second carrier frequency; receiving messages from at least one access terminal at the access point, wherein the messages are indicative of channel quality on the second carrier frequency; and controlling transmit power of the access point based on the received messages, wherein the transmit power is controlled for transmissions on at least the first carrier frequency. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. An apparatus for communication, comprising:
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a transmitter operable to transmit data on a forward link and transmit beacons on a beacon channel, wherein the data is transmitted on a first carrier frequency and the beacons are transmitted on a second carrier frequency; a receiver operable to receive messages from at least one access terminal, wherein the messages are indicative of channel quality on the second carrier frequency; and a controller operable to control transmit power of the transmitter based on the received messages, wherein the transmit power is controlled for transmissions on at least the first carrier frequency. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26)
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27. An apparatus for communication, comprising:
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means for transmitting data on a forward link and transmitting beacons on a beacon channel, wherein the data is transmitted on a first carrier frequency and the beacons are transmitted on a second carrier frequency; means for receiving messages from at least one access terminal, wherein the messages are indicative of channel quality on the second carrier frequency; and means for controlling transmit power of the means for transmitting based on the received messages, wherein the transmit power is controlled for transmissions on at least the first carrier frequency. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35)
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36. A computer-program product, comprising:
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non-transitory computer-readable medium comprising code for causing a computer to; transmit data on a forward link, wherein the data is transmitted by an access point on a first carrier frequency; transmit beacons on a beacon channel, wherein the beacons are transmitted by the access point on a second carrier frequency; receive messages from at least one access terminal at the access point, wherein the messages are indicative of channel quality on the second carrier frequency; and control transmit power of the access point based on the received messages, wherein the transmit power is controlled for transmissions on at least the first carrier frequency. - View Dependent Claims (37, 38, 39, 40, 41, 42, 43, 44)
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45. A method of communication, comprising:
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transmitting data on a forward link of an access point, wherein the data is transmitted by the access point on a first carrier frequency; transmitting beacons on a beacon channel, wherein the beacons are transmitted by the access point on a second carrier frequency; receiving registration messages at the access point, wherein the registration messages are received over a period of time; and controlling transmit power of the access point upon expiration of the period of time based on the registration messages, wherein the transmit power is controlled for transmissions on the second carrier frequency. - View Dependent Claims (46, 47, 48, 49)
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50. An apparatus for communication, comprising:
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a transmitter operable to transmit data on a forward link and transmit beacons on a beacon channel, wherein the data is transmitted on a first carrier frequency and the beacons are transmitted on a second carrier frequency; a receiver operable to receive registration messages from at least one access terminal at an access point, wherein the registration messages are received over a period of time; and a controller operable to control transmit power of the transmitter upon expiration of the period of time based on the registration messages, wherein the transmit power is controlled for transmissions on the second carrier frequency. - View Dependent Claims (51, 52)
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53. An apparatus for communication, comprising:
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means for transmitting data on a forward link and transmitting beacons on a beacon channel, wherein the data is transmitted on a first carrier frequency and the beacons are transmitted by an access point on a second carrier frequency; means for receiving registration messages at the access point from at least one access terminal, wherein the registration messages are received over a period of time; and means for controlling transmit power of the means for transmitting upon expiration of the period of time based on the registration messages, wherein the transmit power is controlled for transmissions on the second carrier frequency. - View Dependent Claims (54, 55)
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56. A computer-program product, comprising:
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non-transitory computer-readable medium comprising code for causing a computer to; transmit data on a forward link of an access point, wherein the data is transmitted by the access point on a first carrier frequency; transmit beacons on a beacon channel, wherein the beacons are transmitted by the access point on a second carrier frequency; receive registration messages from at least one access terminal at the access point, wherein the registration messages are received over a period of time; and control transmit power of the access point upon expiration of the period of time based on the registration messages, wherein the transmit power is controlled for transmissions on the second carrier frequency. - View Dependent Claims (57, 58)
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59. A method of communication, comprising:
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transmitting data on a forward link, wherein the data is transmitted by an access point on a first carrier frequency; transmitting beacons on a beacon channel, wherein the beacons are transmitted by the access point on a second carrier frequency; receiving messages from at least one access terminal at the access point, wherein the messages are indicative of channel quality on the second carrier frequency; controlling transmit power of the access point based on the received messages, wherein the transmit power is controlled for transmissions on the first carrier frequency, the second carrier frequency, or the first carrier frequency and the second carrier frequency; and receiving additional messages from the at least one access terminal at the access point, wherein; the additional messages are indicative of;
channel quality on the first carrier frequency, at least one path loss between the at least one access terminal and the access point, or channel quality on the first carrier frequency and at least one path loss between the at least one access terminal and the access point, andthe controlling of the transmit power is further based on the received additional messages.
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60. A method of communication, comprising:
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transmitting data on a forward link, wherein the data is transmitted by an access point on a first carrier frequency; transmitting beacons on a beacon channel, wherein the beacons are transmitted by the access point on a second carrier frequency; receiving messages from at least one access terminal at the access point, wherein the messages are indicative of channel quality on the second carrier frequency; controlling transmit power of the access point based on the received messages, wherein the transmit power is controlled for transmissions on the first carrier frequency, the second carrier frequency, or the first carrier frequency and the second carrier frequency; and receiving registration messages at the access point, wherein the controlling of the transmit power is further based on the received registration messages, the registration messages are received over a period of time, and the controlling of the transmit power based on the received registration messages comprises adjusting the transmit power upon expiration of the period of time.
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61. A method of communication, comprising:
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transmitting data on a forward link, wherein the data is transmitted by an access point on a first carrier frequency; transmitting beacons on a beacon channel, wherein the beacons are transmitted by the access point on a second carrier frequency; receiving messages from at least one access terminal at the access point, wherein the messages are indicative of channel quality on the second carrier frequency; controlling transmit power of the access point based on the received messages, wherein the transmit power is controlled for transmissions on the first carrier frequency, the second carrier frequency, or the first carrier frequency and the second carrier frequency; and receiving registration messages at the access point, wherein the controlling of the transmit power is further based on the received registration messages, wherein controlling of the transmit power based on the received registration messages comprises; classifying an access terminal that sent at least one of the registration messages as a neighboring alien access terminal or a non-neighboring alien access terminal, and adjusting the transmit power according to different criteria depending on whether the access terminal is classified as a neighboring alien access terminal or a non-neighboring alien access terminal.
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62. A method of communication, comprising:
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transmitting data on a forward link, wherein the data is transmitted by an access point on a first carrier frequency; transmitting beacons on a beacon channel, wherein the beacons are transmitted by the access point on a second carrier frequency; receiving messages from at least one access terminal at the access point, wherein the messages are indicative of channel quality on the second carrier frequency; controlling transmit power of the access point based on the received messages, wherein the transmit power is controlled for transmissions on the first carrier frequency, the second carrier frequency, or the first carrier frequency and the second carrier frequency; and receiving registration messages at the access point, wherein the controlling of the transmit power is further based on the received registration messages, wherein the controlling of the transmit power based on the received messages comprises establishing transmit power limits based on the channel quality on the second carrier frequency, the received registration messages correspond to a quantity of registration attempts made by at least one other access terminal over a period of time, the at least one other access terminal is not authorized to receive active mode service via the access point, and the controlling of the transmit power based on the received registration messages comprising adjusting the transmit power within the transmit power limits based on the quantity of registration attempts.
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63. A method of communication, comprising:
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transmitting data on a forward link, wherein the data is transmitted by an access point on a first carrier frequency; transmitting beacons on a beacon channel, wherein the beacons are transmitted by the access point on a second carrier frequency; receiving messages from at least one access terminal at the access point, wherein the messages are indicative of channel quality on the second carrier frequency; controlling transmit power of the access point based on the received messages, wherein the transmit power is controlled for transmissions on the first carrier frequency, the second carrier frequency, or the first carrier frequency and the second carrier frequency; receiving registration messages at the access point, wherein the controlling of the transmit power is further based on the received registration messages; receiving pilot signals from at least one other access point on the second carrier frequency; identifying channel quality at the access point based on the received pilot signals; and setting at least one limit for the transmit power based on the identified channel quality.
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64. An apparatus for communication, comprising:
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means for transmitting data on a forward link and transmitting beacons on a beacon channel, wherein the data is transmitted on a first carrier frequency and the beacons are transmitted on a second carrier frequency; means for receiving messages from at least one access terminal, wherein the messages are indicative of channel quality on the second carrier frequency; means for controlling transmit power of the means for transmitting based on the received messages, wherein the transmit power is controlled for transmissions on the first carrier frequency, the second carrier frequency, or the first carrier frequency and the second carrier frequency; and means for receiving additional messages from the at least one access terminal, wherein; the additional messages are indicative of;
channel quality on the first carrier frequency, at least one path loss between the at least one access terminal and the apparatus, or channel quality on the first carrier frequency and at least one path loss between the at least one access terminal and the apparatus, andthe controlling of the transmit power is further based on the received additional messages.
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65. An apparatus for communication, comprising:
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means for transmitting data on a forward link and transmitting beacons on a beacon channel, wherein the data is transmitted on a first carrier frequency and the beacons are transmitted on a second carrier frequency; means for receiving messages from at least one access terminal, wherein the messages are indicative of channel quality on the second carrier frequency; means for controlling transmit power of the means for transmitting based on the received messages, wherein the transmit power is controlled for transmissions on the first carrier frequency, the second carrier frequency, or the first carrier frequency and the second carrier frequency; and means for receiving registration messages, wherein the controlling of the transmit power is further based on the received registration messages, and the controlling of the transmit power based on the received registration messages comprises; classifying an access terminal that sent at least one of the registration messages as a neighboring alien access terminal or a non-neighboring alien access terminal, and adjusting the transmit power according to different criteria depending on whether the access terminal is classified as a neighboring alien access terminal or a non-neighboring alien access terminal.
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66. An apparatus for communication, comprising:
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means for transmitting data on a forward link and transmitting beacons on a beacon channel, wherein the data is transmitted on a first carrier frequency and the beacons are transmitted on a second carrier frequency; means for receiving messages from at least one access terminal, wherein the messages are indicative of channel quality on the second carrier frequency; means for controlling transmit power of the means for transmitting based on the received messages, wherein the transmit power is controlled for transmissions on the first carrier frequency, the second carrier frequency, or the first carrier frequency and the second carrier frequency; and means for receiving registration messages, wherein the controlling of the transmit power is further based on the received registration messages, wherein the controlling of the transmit power based on the received messages comprises establishing transmit power limits based on the channel quality on the second carrier frequency; the received registration messages correspond to a quantity of registration attempts made by at least one other access terminal over a period of time; the at least one other access terminal is not authorized to receive active mode service via the apparatus, and the controlling of the transmit power based on the received registration messages comprising adjusting the transmit power within the transmit power limits based on the quantity of registration attempts.
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67. A computer-program product, comprising:
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non-transitory computer-readable medium comprising code for causing a computer to; transmit data on a forward link, wherein the data is transmitted by an access point on a first carrier frequency; transmit beacons on a beacon channel, wherein the beacons are transmitted by the access point on a second carrier frequency; receive messages from at least one access terminal at the access point, wherein the messages are indicative of channel quality on the second carrier frequency; and control transmit power of the access point based on the received messages, wherein the transmit power is controlled for transmissions on the first carrier frequency, the second carrier frequency, or the first carrier frequency and the second carrier frequency, wherein the computer-readable medium further comprises code for causing the computer to receive additional messages from the at least one access terminal at the access point; the additional messages are indicative of;
channel quality on the first carrier frequency, at least one path loss between the at least one access terminal and the access point, or channel quality on the first carrier frequency and at least one path loss between the at least one access terminal and the access point; andthe controlling of the transmit power is further based on the received additional messages.
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68. A computer-program product, comprising:
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non-transitory computer-readable medium comprising code for causing a computer to; transmit data on a forward link, wherein the data is transmitted by an access point on a first carrier frequency; transmit beacons on a beacon channel, wherein the beacons are transmitted by the access point on a second carrier frequency; receive messages from at least one access terminal at the access point, wherein the messages are indicative of channel quality on the second carrier frequency; and control transmit power of the access point based on the received messages, wherein the transmit power is controlled for transmissions on the first carrier frequency, the second carrier frequency, or the first carrier frequency and the second carrier frequency, wherein; the computer-readable medium further comprises code for causing the computer to receive registration messages at the access point; and the controlling of the transmit power is further based on the received registration messages, and wherein the controlling of the transmit power based on the received registration messages comprises; classifying an access terminal that sent at least one of the registration messages as a neighboring alien access terminal or a non-neighboring alien access terminal; and adjusting the transmit power according to different criteria depending on whether the access terminal is classified as a neighboring alien access terminal or a non-neighboring alien access terminal.
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69. A computer-program product, comprising:
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non-transitory computer-readable medium comprising code for causing a computer to; transmit data on a forward link, wherein the data is transmitted by an access point on a first carrier frequency; transmit beacons on a beacon channel, wherein the beacons are transmitted by the access point on a second carrier frequency; receive messages from at least one access terminal at the access point, wherein the messages are indicative of channel quality on the second carrier frequency; and control transmit power of the access point based on the received messages, wherein the transmit power is controlled for transmissions on the first carrier frequency, the second carrier frequency, or the first carrier frequency and the second carrier frequency, wherein; the computer-readable medium further comprises code for causing the computer to receive registration messages at the access point; and the controlling of the transmit power is further based on the received registration messages, wherein; the controlling of the transmit power based on the received messages comprises establishing transmit power limits based on the channel quality on the second carrier frequency; the received registration messages correspond to a quantity of registration attempts made by at least one other access terminal over a period of time; the at least one other access terminal is not authorized to receive active mode service via the access point; and the controlling of the transmit power based on the received registration messages comprising adjusting the transmit power within the transmit power limits based on the quantity of registration attempts.
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70. A method of communication, comprising:
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transmitting data on a forward link of an access point, wherein the data is transmitted by the access point on a first carrier frequency; transmitting beacons on a beacon channel, wherein the beacons are transmitted by the access point on a second carrier frequency; receiving messages from at least one access terminal at the access point, wherein the messages are indicative of;
channel quality on the first carrier frequency, at least one path loss between the at least one access terminal and the access point, or channel quality on the first carrier frequency and at least one path loss between the at least one access terminal and the access point; andcontrolling transmit power of the access point based on the received messages, wherein the transmit power is controlled for transmissions on the second carrier frequency, wherein; the controlling of the transmit power based on the received messages comprises establishing transmit power limits based on the channel quality on the first carrier frequency; the received registration messages correspond to a quantity of registration attempts made by at least one other access terminal over a period of time; the at least one other access terminal is not authorized to receive active mode service via the access point; and the controlling of the transmit power based on the received registration messages comprising adjusting the transmit power within the transmit power limits based on the quantity of registration attempts.
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71. An apparatus for communication, comprising:
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a transmitter operable to transmit data on a forward link and transmit beacons on a beacon channel, wherein the data is transmitted on a first carrier frequency and the beacons are transmitted on a second carrier frequency; a receiver operable to receive messages from at least one access terminal, wherein the messages are indicative of;
channel quality on the first carrier frequency, at least one path loss between the at least one access terminal and the apparatus, or channel quality on the first carrier frequency and at least one path loss between the at least one access terminal and the apparatus; anda controller operable to control transmit power of the transmitter based on the received messages, wherein the transmit power is controlled for transmissions on the second carrier frequency, wherein; the controlling of the transmit power based on the received messages comprises establishing transmit power limits based on the channel quality on the first carrier frequency; the received registration messages correspond to a quantity of registration attempts made by at least one other access terminal over a period of time; the at least one other access terminal is not authorized to receive active mode service via the apparatus; and the controlling of the transmit power based on the received registration messages comprising adjusting the transmit power within the transmit power limits based on the quantity of registration attempts.
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72. An apparatus for communication, comprising:
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means for transmitting data on a forward link and transmitting beacons on a beacon channel, wherein the data is transmitted on a first carrier frequency and the beacons are transmitted by an access point on a second carrier frequency; means for receiving messages from at least one access terminal, wherein the messages are indicative of;
channel quality on the first carrier frequency, at least one path loss between the at least one access terminal and the apparatus, or channel quality on the first carrier frequency and at least one path loss between the at least one access terminal and the apparatus; andmeans for controlling transmit power of the means for transmitting based on the received messages, wherein the transmit power is controlled for transmissions on the second carrier frequency, wherein; the controlling of the transmit power based on the received messages comprises establishing transmit power limits based on the channel quality on the first carrier frequency; the received registration messages correspond to a quantity of registration attempts made by at least one other access terminal over a period of time; the at least one other access terminal is not authorized to receive active mode service via the apparatus; and the controlling of the transmit power based on the received registration messages comprising adjusting the transmit power within the transmit power limits based on the quantity of registration attempts.
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73. A computer-program product, comprising:
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non-transitory computer-readable medium comprising code for causing a computer to; transmit data on a forward link of an access point, wherein the data is transmitted by the access point on a first carrier frequency; transmit beacons on a beacon channel, wherein the beacons are transmitted by the access point on a second carrier frequency; receive messages from at least one access terminal at the access point, wherein the messages are indicative of;
channel quality on the first carrier frequency, at least one path loss between the at least one access terminal and the access point, or channel quality on the first carrier frequency and at least one path loss between the at least one access terminal and the access point; andcontrol transmit power of the access point based on the received messages, wherein the transmit power is controlled for transmissions on the second carrier frequency, of registration attempts, wherein; the controlling of the transmit power based on the received messages comprises establishing transmit power limits based on the channel quality on the first carrier frequency; the received registration messages correspond to a quantity of registration attempts made by at least one other access terminal over a period of time; the at least one other access terminal is not authorized to receive active mode service via the access point; and the controlling of the transmit power based on the received registration messages comprising adjusting the transmit power within the transmit power limits based on the quantity.
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Specification