Method and apparatus for reliable transmission of control information in a wireless communication network
First Claim
1. A method for wireless communication, comprising:
- configuring a size of a decoding window that covers a plurality of subframes, the size of the decoding window being configurable for different user equipment or different cells;
decoding a control channel in at least one subframe within the decoding window covering the plurality of subframes to obtain control information sent on the control channel; and
decoding, based on the control information, a data channel in a second subframe to obtain data sent on the data channel, wherein the second subframe occurs subsequent to an end of the decoding window,wherein the at least one subframe is usable to a cell to send the control information on the control channel by having less interference than remaining subframes within the decoding window, the size of the decoding window being configurable based at least in part on a periodicity with which the at least one subframe is allocated to the cell.
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Accused Products
Abstract
Techniques for reliably transmitting and receiving control information in a wireless network are described. A cell may typically send control information on a control channel and associated data (e.g., system information) on a data channel in the same subframe. This subframe may have strong interference from other cells. For cross-subframe signaling, the cell may transmit the control information in a first subframe and the associated data in a second subframe. The first subframe may be a usable subframe for the cell and may have less interference from other cells. A UE may not know the location of the first subframe and may perform window-based decoding. The UE may decode the control channel in at least one subframe within a decoding window covering the first subframe to obtain the control information. The UE may then decode the data channel in the second subframe based on the control information to obtain the data.
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Citations
36 Claims
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1. A method for wireless communication, comprising:
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configuring a size of a decoding window that covers a plurality of subframes, the size of the decoding window being configurable for different user equipment or different cells; decoding a control channel in at least one subframe within the decoding window covering the plurality of subframes to obtain control information sent on the control channel; and decoding, based on the control information, a data channel in a second subframe to obtain data sent on the data channel, wherein the second subframe occurs subsequent to an end of the decoding window, wherein the at least one subframe is usable to a cell to send the control information on the control channel by having less interference than remaining subframes within the decoding window, the size of the decoding window being configurable based at least in part on a periodicity with which the at least one subframe is allocated to the cell. - View Dependent Claims (2, 3, 4, 5, 6, 35, 36)
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7. An apparatus for wireless communication, comprising:
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means for configuring a size of a decoding window that covers a plurality of subframes, the size of the decoding window being configurable for different user equipment or different cells; means for decoding a control channel in at least one subframe within the decoding window covering the plurality of subframes to obtain control information sent on the control channel; and means for decoding, based on the control information, a data channel in a second subframe to obtain data sent on the data channel, wherein the second subframe occurs subsequent to an end of the decoding window, wherein the at least one subframe is usable to a cell to send the control information on the control channel by having less interference than remaining subframes within the decoding window, the size of the decoding window being configurable based at least in part on a periodicity with which the at least one subframe is allocated to the cell. - View Dependent Claims (8)
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9. An apparatus for wireless communication, comprising:
- at least one processor configured to configure a size of a decoding window that covers a plurality of subframes, the size of the decoding window being configurable for different user equipment or different cells;
to decode a control channel in at least one subframe within the decoding window covering the plurality of subframes to obtain control information sent on the control channel, and to decode, based on the control information, a data channel in a second subframe to obtain data sent on the data channel, wherein the second subframe occurs subsequent to an end of the decoding window, wherein the at least one subframe is usable to a cell to send the control information on the control channel by having less interference than remaining subframes within the decoding window, the size of the decoding window being configurable based at least in part on a periodicity with which the at least one subframe is allocated to the cell, and a memory coupled to the at least one processor. - View Dependent Claims (10)
- at least one processor configured to configure a size of a decoding window that covers a plurality of subframes, the size of the decoding window being configurable for different user equipment or different cells;
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11. A non-transitory computer-readable medium storing computer executable code for wireless communication, comprising:
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code for configuring a size of a decoding window that covers a plurality of subframes, the size of the decoding window being configurable for different user equipment or different cells; code for decoding a control channel in at least one subframe within the decoding window covering the plurality of subframes to obtain control information sent on the control channel; and code for decoding, based on the control information, a data channel in a second subframe to obtain data sent on the data channel, wherein the second subframe occurs subsequent to an end of the decoding window, wherein the at least one subframe is usable to a cell to send the control information on the control channel by having less interference than remaining subframes within the decoding window, the size of the decoding window being configurable based at least in part on a periodicity with which the at least one subframe is allocated to the cell.
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12. A method for wireless communication, comprising:
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determining at least one subframe for a cell within a decoding window covering a plurality of subframes, the at least one subframe being usable to the cell to send control information on a control channel by having less interference than remaining subframes within the decoding window, one of the at least one subframe being a first subframe, a size of the decoding window being configurable based at least in part on a periodicity with which the at least one subframe is allocated to the cell; sending the control information to a user equipment on the control channel in the first subframe within the decoding window, the size of the decoding window being configured by the user equipment, and the size of the decoding window being configurable for different user equipment or different cells; and sending data on a data channel in a second subframe, wherein the second subframe occurs subsequent to the first subframe and subsequent to an end of the decoding window, the control information comprising at least one parameter used to decode the data channel. - View Dependent Claims (13, 14, 15, 16)
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17. An apparatus for wireless communication, comprising:
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means for determining at least one subframe for a cell within the decoding window covering a plurality of subframes, the at least one subframe being usable to the cell to send control information on a control channel by having less interference than remaining subframes within the decoding window, one of the at least one subframe being a first subframe, a size of the decoding window being configurable based at least in part on a periodicity with which the at least one subframe is allocated to the cell; means for sending the control information to a user equipment on the control channel in the first subframe within the decoding window, the size of the decoding window being configured by the user equipment, and the size of the decoding window being configurable for different user equipment or different cells; and means for sending data on a data channel in a second subframe, wherein the second subframe occurs subsequent to the first subframe and subsequent to an end of the decoding window, the control information comprising at least one parameter used to decode the data channel. - View Dependent Claims (18)
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19. A method for wireless communication, comprising:
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configuring a size of a decoding window that covers a plurality of subframes, the size of the decoding window being configurable for different user equipment or different cells; determining a first subframe within the decoding window covering the plurality of subframes based on first information available to a UE user equipment (UE) for a cell; decoding a control channel in the first subframe to obtain control information sent on the control channel by the cell; and decoding, based on the control information, a data channel in a second subframe to obtain system information sent on the data channel by the cell, wherein the second subframe occurs subsequent to the first subframe and subsequent to an end of the decoding window, wherein the first subframe is one of at least one subframe within the decoding window usable to send the control information on the control channel by having less interference than remaining subframes within the decoding window, the size of the decoding window being configurable based at least in part on a periodicity with which the at least one subframe is allocated to the cell. - View Dependent Claims (20, 21, 22, 23)
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24. An apparatus for wireless communication, comprising:
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means for configuring a size of a decoding window that covers a plurality of subframes, the size of the decoding window being configurable for different user equipment or different cells; means for determining a first subframe within the decoding window covering the plurality of subframes based on first information available to a user equipment (UE) for a cell; means for decoding a control channel in the first subframe to obtain control information sent on the control channel by the cell; and means for decoding, based on the control information, a data channel in a second subframe to obtain system information sent on the data channel by the cell, wherein the second subframe occurs subsequent to the first subframe and subsequent to an end of the decoding window, wherein the first subframe is one of at least one subframe within the decoding window usable to send the control information on the control channel by having less interference than remaining subframes within the decoding window, the size of the decoding window being configurable based at least in part on a periodicity with which the at least one subframe is allocated to the cell. - View Dependent Claims (25, 26)
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27. A method for wireless communication, comprising:
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determining a first subframe within a decoding window covering a plurality of subframes based on first information for a cell, a size of the decoding window being configured by a user equipment, and the size of the decoding window being configurable for different user equipment or different cells; sending control information on a control channel in the first subframe; and sending system information on a data channel in a second subframe, wherein the second subframe occurs subsequent to the first subframe and subsequent to an end of the decoding window, the control information comprising at least one parameter used to decode the data channel, wherein the first subframe is one of at least one subframe within the decoding window usable to send the control information on the control channel by having less interference than remaining subframes within the decoding window, the size of the decoding window being configurable based at least in part on a periodicity with which the at least one subframe is allocated to the cell. - View Dependent Claims (28, 29, 30, 31)
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32. An apparatus for wireless communication, comprising:
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means for determining a first subframe within a decoding window covering a plurality of subframes based on first information for a cell, a size of the decoding window being configured by a user equipment, and the size of the decoding window being configurable for different user equipment or different cells; means for sending control information on a control channel in the first subframe; and means for sending system information on a data channel in a second subframe, wherein the second subframe occurs subsequent to the first subframe and subsequent to an end of the decoding window, the control information comprising at least one parameter used to decode the data channel, wherein the first subframe is one of at least one subframe within the decoding window usable to send the control information on the control channel by having less interference than remaining subframes within the decoding window, the size of the decoding window being configurable based at least in part on a periodicity with which the at least one subframe is allocated to the cell. - View Dependent Claims (33, 34)
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Specification