Acknowledgement bundling in a MIMO communication system
First Claim
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1. A wireless communication method, comprising:
- receiving a plurality of codewords;
transmitting a downlink feedback message by spatially bundling acknowledgments for the received plurality of codewords in a plurality of Physical Hybrid Automatic Repeat Request (ARQ) Indicator Channels (PHICH); and
transmitting configuration data in a Physical Downlink Control Channel (PDCCH) accompanying the downlink feedback message in the PHICH to configure a wireless terminal to provide an uplink feedback response, wherein, based on the configuration data including information related to a downlink control information format for signaling in the PDCCH, one of;
the signaling in the PDCCH overrides any settings conveyed by the PHICH when the signaling in the PDCCH uses a large payload downlink control information format, or the signaling in the PDCCH is interpreted using the downlink feedback message in the PHICH when the signaling in the PDCCH uses a compact payload downlink control information format, wherein the signaling in the PDCCH is interpreted to configure the wireless terminal to operate in a single antenna mode when the downlink feedback message in the PHICH acknowledges the plurality of codewords are received.
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Abstract
A method of wireless communication comprises receiving a plurality of codewords and transmitting a downlink feedback message by spatially bundling acknowledgments for the received plurality of codewords. In some designs, an accompanying grant message is transmitted with the downlink feedback message.
11 Citations
32 Claims
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1. A wireless communication method, comprising:
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receiving a plurality of codewords; transmitting a downlink feedback message by spatially bundling acknowledgments for the received plurality of codewords in a plurality of Physical Hybrid Automatic Repeat Request (ARQ) Indicator Channels (PHICH); and transmitting configuration data in a Physical Downlink Control Channel (PDCCH) accompanying the downlink feedback message in the PHICH to configure a wireless terminal to provide an uplink feedback response, wherein, based on the configuration data including information related to a downlink control information format for signaling in the PDCCH, one of;
the signaling in the PDCCH overrides any settings conveyed by the PHICH when the signaling in the PDCCH uses a large payload downlink control information format, or the signaling in the PDCCH is interpreted using the downlink feedback message in the PHICH when the signaling in the PDCCH uses a compact payload downlink control information format, wherein the signaling in the PDCCH is interpreted to configure the wireless terminal to operate in a single antenna mode when the downlink feedback message in the PHICH acknowledges the plurality of codewords are received. - View Dependent Claims (2, 3, 4)
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5. A wireless communication apparatus, comprising:
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means for receiving a plurality of codewords; means for transmitting a downlink feedback message by spatially bundling acknowledgments for the received plurality of codewords in a plurality of Physical Hybrid Automatic Repeat Request (ARQ) Indicator Channels (PHICH); and means for transmitting configuration data in a Physical Downlink Control Channel (PDCCH) accompanying the downlink feedback message in the PHICH to configure a wireless terminal to provide an uplink feedback response, wherein, based on the configuration data including information related to a downlink control information format for signaling in the PDCCH, one of;
the signaling in the PDCCH overrides any settings conveyed by the PHICH when the signaling in the PDCCH uses a large payload downlink control information format, or the signaling in the PDCCH is interpreted using the downlink feedback message in the PHICH when the signaling in the PDCCH uses a compact payload downlink control information format, wherein the signaling in the PDCCH is interpreted to configure the wireless terminal to operate in a single antenna mode when the downlink feedback message in the PHICH acknowledges the plurality of codewords are received. - View Dependent Claims (6, 7, 8)
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9. A non-transitory computer-readable, non-volatile storage medium storing computer-executable instructions, the instructions comprising code for:
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receiving a plurality of codewords; transmitting a downlink feedback message by spatially bundling acknowledgments for the received plurality of codewords in a plurality of Physical Hybrid Automatic Repeat Request (ARQ) Indicator Channels (PHICH); and transmitting configuration data in a Physical Downlink Control Channel (PDCCH) accompanying the downlink feedback message in the PHICH to configure a wireless terminal to provide an uplink feedback response, wherein, based on the configuration data including information related to a downlink control information format for signaling in the PDCCH, one of;
the signaling in the PDCCH overrides any settings conveyed by the PHICH when the signaling in the PDCCH uses a large payload downlink control information format, or the signaling in the PDCCH is interpreted using the downlink feedback message in the PHICH when the signaling in the PDCCH uses a compact payload downlink control information format, wherein the signaling in the PDCCH is interpreted to configure the wireless terminal to operate in a single antenna mode when the downlink feedback message in the PHICH acknowledges the plurality of codewords are received.
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10. An apparatus for wireless communication, comprising:
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a memory; and a processor coupled to the memory and configured to; receive a plurality of codewords; transmit a downlink feedback message by spatially bundling acknowledgments for the received plurality of codewords in a plurality of Physical Hybrid Automatic Repeat Request (ARQ) Indicator Channels (PHICH); and transmit configuration data in a Physical Downlink Control Channel (PDCCH) accompanying the downlink feedback message in the PHICH to configure a wireless terminal to provide an uplink feedback response, wherein, based on the configuration data including information related to a downlink control information format for signaling in the PDCCH, one of;
the signaling in the PDCCH overrides any settings conveyed by the PHICH when the signaling in the PDCCH uses a large payload downlink control information format, or the signaling in the PDCCH is interpreted using the downlink feedback message in the PHICH when the signaling in the PDCCH uses a compact payload downlink control information format, wherein the signaling in the PDCCH is interpreted to configure the wireless terminal to operate in a single antenna mode when the downlink feedback message in the PHICH acknowledges the plurality of codewords are received.
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11. A wireless communication method, comprising:
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transmitting a plurality of codewords; receiving a downlink feedback message including spatially bundled acknowledgments for the transmitted plurality of codewords in a plurality of Physical Hybrid Automatic Repeat Request (ARQ) Indicator Channels (PHICH); and receiving configuration data in a Physical Downlink Control Channel (PDCCH) accompanying the downlink feedback message in the PHICH to provide an uplink feedback response, wherein, based on the configuration data including information related to a downlink control information format for signaling in the PDCCH, one of;
the signaling in the PDCCH overrides any settings conveyed by the PHICH when the signaling in the PDCCH uses a large payload downlink control information format, or the signaling in the PDCCH is interpreted using the downlink feedback message in the PHICH when the signaling in the PDCCH uses a compact payload downlink control information format, wherein the signaling in the PDCCH is interpreted to enable a single antenna mode when the downlink feedback message in the PHICH acknowledges the plurality of codewords are received. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A wireless communication apparatus, comprising:
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means for transmitting a plurality of codewords; means for receiving a downlink feedback message including spatially bundled acknowledgments for the transmitted plurality of codewords in a plurality of Physical Hybrid Automatic Repeat Request (ARQ) Indicator Channels (PHICH); and means for receiving configuration data in a Physical Downlink Control Channel (PDCCH) accompanying the downlink feedback message in the PHICH to provide an uplink feedback response, wherein, based on the configuration data including information related to a downlink control information format for signaling in the PDCCH, one of;
the signaling in the PDCCH overrides any settings conveyed by the PHICH when the signaling in the PDCCH uses a large payload downlink control information format, or the signaling in the PDCCH is interpreted using the downlink feedback message in the PHICH when the signaling in the PDCCH uses a compact payload downlink control information format, wherein the signaling in the PDCCH is interpreted to enable a single antenna mode when the downlink feedback message in the PHICH acknowledges the plurality of codewords are received. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A non-transitory computer-readable, non-volatile storage medium storing computer-executable instructions, the instructions comprising code for:
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transmitting a plurality of codewords; receiving a downlink feedback message including spatially bundled acknowledgments for the transmitted plurality of codewords in a plurality of Physical Hybrid Automatic Repeat Request (ARQ) Indicator Channels (PHICH); and receiving configuration data in a Physical Downlink Control Channel (PDCCH) accompanying the downlink feedback message in the PHICH to provide an uplink feedback response, wherein, based on the configuration data including information related to a downlink control information format for signaling in the PDCCH, one of;
the signaling in the PDCCH overrides any settings conveyed by the PHICH when the signaling in the PDCCH uses a large payload downlink control information format, or the signaling in the PDCCH is interpreted using the downlink feedback message in the PHICH when the signaling in the PDCCH uses a compact payload downlink control information format, wherein the signaling in the PDCCH is interpreted to enable a single antenna mode when the downlink feedback message in the PHICH acknowledges the plurality of codewords are received.
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32. An apparatus for wireless communication, comprising:
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a memory; and a processor coupled to the memory and configured to; transmit a plurality of codewords; receive a downlink feedback message including spatially bundled acknowledgments for the transmitted plurality of codewords in a plurality of Physical Hybrid Automatic Repeat Request (ARQ) Indicator Channels (PHICH); and receive configuration data in a Physical Downlink Control Channel (PDCCH) accompanying the downlink feedback message in the PHICH to provide an uplink feedback response, wherein, based on the configuration data including information related to a downlink control information format for signaling in the PDCCH, one of;
the signaling in the PDCCH overrides any settings conveyed by the PHICH when the signaling in the PDCCH uses a large payload downlink control information format, or the signaling in the PDCCH is interpreted using the downlink feedback message in the PHICH when the signaling in the PDCCH uses a compact payload downlink control information format, wherein the signaling in the PDCCH is interpreted to enable a single antenna mode when the downlink feedback message in the PHICH acknowledges the plurality of codewords are received.
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Specification