Method and apparatus for assigning users to use interlaces in a wireless cellular communication system
First Claim
Patent Images
1. A method comprising:
- determining an interlace preference factor for a first interlace among multiple interlaces, each including time-staggered segments, the interlace preference factor representing a probability of a first terminal transmitting data in the first interlace to a second terminal; and
based on the interlace preference factor for the first interlace, determining whether to transmit data in the first interlace from the first terminal to the second terminal.
1 Assignment
0 Petitions
Accused Products
Abstract
Methods and apparatuses to selectively assign interlace preference factors to a plurality of user terminals to use a plurality of interlaces. These methods and apparatuses may improve capacity compared to a system that allows each user terminal to transmit data in every interlace.
34 Citations
52 Claims
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1. A method comprising:
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determining an interlace preference factor for a first interlace among multiple interlaces, each including time-staggered segments, the interlace preference factor representing a probability of a first terminal transmitting data in the first interlace to a second terminal; and based on the interlace preference factor for the first interlace, determining whether to transmit data in the first interlace from the first terminal to the second terminal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method comprising:
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assigning a first interlace preference factor for a first interlace to a first Code Division Multiple Access capable user terminal; assigning a second interlace preference factor for a second interlace to the first Code Division Multiple Access capable user terminal; and sending a message to inform the first Code Division Multiple Access capable user terminal of the assigned first and second interlace preference factors. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A method comprising:
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assigning a first interlace preference factor for a first interlace to a first user terminal; assigning a second interlace preference factor for a second interlace to the first user terminal; sending a message to inform the first user terminal of the assigned first and second interlace preference factors; determining which user terminals among a plurality of user terminals transmit signals that interfere most with each other; assigning interlace preference factors to the user terminals that transmit signals which interfere most with each other to use different interlaces for transmitting subsequent signals; sending messages to the user terminals to inform them of their assigned interlaces; among the L user terminals, determining M user terminals that transmit signals which interfere most with each other'"'"'s signals, M being an integer of at least two; assigning interlace preference factors to the M user terminals to use M different interlaces for transmitting subsequent signals; assigning interlace preference factors to one or more remaining non-assigned L user terminals to use interlaces which the one or more remaining non-assigned L user terminals interfere with the least; and sending messages to the user terminals to inform them of their assigned interlaces. - View Dependent Claims (31, 32, 33, 34)
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35. A method comprising:
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assigning a first interlace preference factor for a first interlace to a first user terminal; assigning a second interlace preference factor for a second interlace'"'"' to the first user terminal; sending a message to inform the first user terminal of the assigned first and second interlace preference factors; determining which user terminals among a plurality of user terminals transmit signals that interfere most with each other; assigning interlace preference factors to the user terminals that transmit signals which interfere most with each other to use different interlaces for transmitting subsequent signals; sending messages to the user terminals to inform them of their assigned interlaces; and repeating said determining and assigning for each sector of a multi-sector base station.
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36. A method comprising:
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assigning a first interlace preference-factor for a first interlace to a first user terminal; assigning a second interlace preference factor for a second interlace to the first user terminal; sending a message to inform the first user terminal of the assigned first and second interlace preference factors; determining which user terminals among a plurality of user terminals transmit signals that interfere most with each other; assigning interlace preference factors to the user terminals that transmit signals which interfere most with each other to use different-interlaces for transmitting subsequent signals; and sending messages to the user terminals to inform them of their assigned interlaces, wherein each interlace comprises a sequence of time slots, the time slots of each interlace being staggered with time slots of other interlaces. - View Dependent Claims (37)
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38. An apparatus comprising:
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a transmitter to transmit data to a remote station; and a processor to determine an interlace preference factor for a first time staggered interlace, the interlace preference factor representing a probability of the transmitter transmitting data in the first time interlace to the remote station, based on the interlace preference factor for the first time staggered interlace, the processor is configured to determine whether the transmitter will transmit data, in the first time staggered interlace from the user terminal to the base station. - View Dependent Claims (39, 40, 41, 42, 43, 44)
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45. An apparatus comprising:
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a processor to assign a first interlace preference factor for a first interlace to a first user terminal and assign a second interlace preference factor for a second interlace to the first user terminal; and a transmitter to send a message to the first user terminal indicating the assigned first and second interlace preference factors wherein the first interlace preference factor represents a probability of the first user terminal transmitting data in the first interlace and the second interlace preference factor represents a probability of the first user terminal transmitting data in the second interlace. - View Dependent Claims (46, 47, 48, 49)
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50. An apparatus comprising a processor to (a) determine which user terminals transmitted signals that interfere most with each other'"'"'s signals, and (b) assign the user terminals that transmitted signals which interfere most with each other'"'"'s signals to use different interlaces for transmitting subsequent signals, wherein (b) comprises assigning interlace preference factors to each of the user terminals.
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51. An apparatus comprising:
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means for assigning a first interlace preference factor for a first interlace to a first user terminal; means for assigning a second interlace preference factor for a second interlace to the first user terminal; means for sending a message to inform the first user terminal of the assigned first and second interlace preference factors; means for determining which user terminals among a plurality of user terminals transmit signals that interfere most with each other; means for assigning interlace preference factors to the user terminals that transmit signals which interfere most with each other to use different interlaces for transmitting subsequent signals; means for sending messages to the user terminals to inform them of their assigned interlaces; means for determining M use terminals, among the L user terminals, that transmit signals which interfere most with each other'"'"'s signals, M being an integer of at least two; means for assigning interlace preference factors to the M user terminals to use M different interlaces for transmitting subsequent signals; means for assigning interlace preference factors to one or more remaining non-assigned L user terminals to use interlaces which the one or more remaining non-assigned L user terminals interfere with the least; and means for sending messages to the user terminals to inform them of their assigned interlaces.
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52. An apparatus comprising:
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means for assigning a first interlace preference factor for a first interlace to a first user terminal; means for assigning a second interlace preference factor for a second interlace to the first user terminal; means for sending a message to inform the first user terminal of the assigned first and second interlace preference factors; means for determining which user terminals among a plurality of user terminals transmit signals that interfere most with each other; means for assigning interlace preference factors to the user terminals that transmit signals which interfere most with each other to use different interlaces for transmitting subsequent signals; means for sending messages to the user terminals to inform them of their assigned interlaces; and means for repeating said determining and assigning for each sector of a multi-sector base station.
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Specification