Data transmission via a relay station in a wireless communication system
First Claim
1. A method for wireless communication, comprising:
- sending a first transmission of a packet from a transmitter station to a receiver station;
receiving no information at the transmitter station related to whether the first transmission of the packet was successfully decoded at the receiver station;
suspending transmission of the packet by the transmitter station in response to receiving no information related to whether the first transmission of the packet was successfully decoded at the receiver station;
receiving from the receiver station a resource grant, wherein said resource grant indicates whether to resend the packet or send another packet;
sending a second transmission of the packet from the transmitter station to the receiver station if the resource grant indicates to resend the packet andsending a first transmission of the other packet if the resource grant indicates to send the other packet, wherein ACK information for the first transmission of the packet is sent by the receiver station but is not received by the transmitter station due to no opportunity to receive the ACK information and wherein the no opportunity to receive the ACK information is due to the transmitter station either listening for at least one of system information on a physical broadcast channel or a synchronization signal from another station or transmitting at least one of system information on a physical broadcast channel or a synchronization signal.
1 Assignment
0 Petitions
Accused Products
Abstract
Techniques for supporting data transmission via a relay station are described. In an aspect, data transmission may be supported using ACK-and-suspend. A transmitter station sends a first transmission of a packet to a receiver station. The transmitter station receives no ACK information for the first transmission of the packet and suspends transmission of the packet. The transmitter station thereafter receives an indication to resume transmission of the packet and, in response, sends a second transmission of the packet. In another aspect, different ACK timeline may be used when applicable. The receiver station may send ACK information in a designated subframe if available for use or in a different subframe. In yet another aspect, ACK repetition may be used. The receiver may send ACK information in multiple subframes to facilitate reception of the ACK information when the transmitter station is unable to receive one or more of the multiple subframes.
88 Citations
30 Claims
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1. A method for wireless communication, comprising:
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sending a first transmission of a packet from a transmitter station to a receiver station; receiving no information at the transmitter station related to whether the first transmission of the packet was successfully decoded at the receiver station;
suspending transmission of the packet by the transmitter station in response to receiving no information related to whether the first transmission of the packet was successfully decoded at the receiver station;receiving from the receiver station a resource grant, wherein said resource grant indicates whether to resend the packet or send another packet; sending a second transmission of the packet from the transmitter station to the receiver station if the resource grant indicates to resend the packet and sending a first transmission of the other packet if the resource grant indicates to send the other packet, wherein ACK information for the first transmission of the packet is sent by the receiver station but is not received by the transmitter station due to no opportunity to receive the ACK information and wherein the no opportunity to receive the ACK information is due to the transmitter station either listening for at least one of system information on a physical broadcast channel or a synchronization signal from another station or transmitting at least one of system information on a physical broadcast channel or a synchronization signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An apparatus for wireless communication, comprising:
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means for sending a first transmission of a packet from a transmitter station to a receiver station; means for receiving no information at the transmitter station related to whether the first transmission of the packet was successfully decoded at the receiver station; means for suspending transmission of the packet by the transmitter station in response to receiving no information related to whether the first transmission of the packet was successfully decoded at the receiver station; means for receiving from the receiver station a resource grant, wherein said resource grant indicates whether to resend the packet or send another packet; means for sending a second transmission of the packet from the transmitter station to the receiver station if the resource grant indicates to resend the packet; and means for sending a first transmission of the other packet if the resource grant indicates to send the other packet, wherein ACK information for the first transmission of the packet is sent by the receiver station but is not received by the transmitter station due to no opportunity to receive the ACK information and wherein the no opportunity to receive the ACK information is due to the transmitter station either listening for at least one of system information on a physical broadcast channel or a synchronization signal from another station or transmitting at least one of system information on a physical broadcast channel or a synchronization signal. - View Dependent Claims (13, 14, 15)
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16. An apparatus for wireless communication, comprising:
at least one processor configured to send a first transmission of a packet from a transmitter station to a receiver station, to receive no information at the transmitter station related to whether the first transmission of the packet was successfully decoded at the receiver station, to suspend transmission of the packet by the transmitter station in response to receiving no information related to whether the first transmission of the packet was successfully decoded at the receiver station, to receive from the receiver station a resource grant, wherein said resource grant indicates whether to resend the packet or send another packet, to send a second transmission of the packet from the transmitter station to the receiver station if the resource grant indicates to resend the packet, and to send a first transmission of the other packet if the resource grant indicates to send the other packet, wherein ACK information for the first transmission of the packet is sent by the receiver station but is not received by the transmitter station due to no opportunity to receive the ACK information and wherein the no opportunity to receive the ACK information is due to the transmitter station either listening for at least one of system information on a physical broadcast channel or a synchronization signal from another station or transmitting at least one of system information on a physical broadcast channel or a synchronization signal. - View Dependent Claims (17, 18, 19)
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20. A non-transitory machine readable medium comprising code that when executed on at least one processor performs the steps of:
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sending a first transmission of a packet from a transmitter station to a receiver station, receiving no information at the transmitter station related to whether the first transmission of the packet was successfully decoded at the receiver station, suspending transmission of the packet by the transmitter station in response to receiving no information related to whether the first transmission of the packet was successfully decoded at the receiver station, receiving from the receiver station a resource grant, wherein said resource grant indicates whether to resend the packet or send another packet; sending a second transmission of the packet from the transmitter station to the receiver station if the resource grant indicates to resend the packet; and sending a first transmission of the other packet if the resource grant indicates to send the other packet, wherein ACK information for the first transmission of the packet is sent by the receiver station but is not received by the transmitter station due to no opportunity to receive the ACK information and wherein the no opportunity to receive the ACK information is due to the transmitter station either listening for at least one of system information on a physical broadcast channel or a synchronization signal from another station or transmitting at least one of system information on a physical broadcast channel or a synchronization signal.
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21. A method for wireless communication, comprising:
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receiving a first transmission of a packet sent from a transmitter station to a receiver station; determining that transmission of the packet has been suspended by the transmitter station due to the transmitter station receiving no information related to whether the first transmission of the packet was successfully decoded at the receiver station; sending to the transmitter station a resource grant, wherein said resource grant indicates whether to resend the packet or send another packet; receiving a second transmission of the packet from the transmitter station to the receiver station if the resource grant indicates to resend the packet; and receiving a first transmission of the other packet if the resource grant indicates to send the other packet, wherein ACK information for the first transmission of the packet is sent by the receiver station but is not received by the transmitter station due to no opportunity to receive the ACK information and wherein the no opportunity to receive the ACK information is due to the transmitter station either listening for at least one of system information on a physical broadcast channel or a synchronization signal from another station or transmitting at least one of system information on a physical broadcast channel or a synchronization signal. - View Dependent Claims (22, 23)
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24. An apparatus for wireless communication, comprising:
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means for receiving a first transmission of a packet sent from a transmitter station to a receiver station; means for determining that transmission of the packet has been suspended by the transmitter station due to the transmitter station receiving no information related to whether the first transmission of the packet was successfully decoded at the receiver station; means for sending to the transmitter station a resource grant, wherein said resource grant indicates whether to resend the packet or send another packet; means for receiving a second transmission of the packet from the transmitter station to the receiver station if the resource grant indicates to resend the packet; and means for receiving a first transmission of the other packet if the resource grant indicates to send the other packet, wherein ACK information for the first transmission of the packet is sent by the receiver station but is not received by the transmitter station due to no opportunity to receive the ACK information and wherein the no opportunity to receive the ACK information is due to the transmitter station either listening for at least one of system information on a physical broadcast channel or a synchronization signal from another station or transmitting at least one of system information on a physical broadcast channel or a synchronization signal. - View Dependent Claims (25, 26)
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27. An apparatus for wireless communication, comprising:
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at least one processor configured to; receive a first transmission of a packet sent from a transmitter station to a receiver station; determine that transmission of the packet has been suspended by the transmitter station due to the transmitter station receiving no information related to whether the first transmission of the packet is successfully decoded at the receiver station; send to the transmitter station a resource grant, wherein said resource grant indicates whether to resend the packet or send another packet; receive a second transmission of the packet from the transmitter station to the receiver station if the resource grant indicates to resend the packet; and receive a first transmission of the other packet if the resource grant indicates to send the other packet, wherein ACK information for the first transmission of the packet is sent by the receiver station but is not received by the transmitter station due to no opportunity to receive the ACK information and wherein the no opportunity to receive the ACK information is due to the transmitter station either listening for at least one of system information on a physical broadcast channel or a synchronization signal from another station or transmitting at least one of system information on a physical broadcast channel or a synchronization signal. - View Dependent Claims (28, 29)
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30. A non-transitory machine readable medium comprising code that when executed on at least one processor performs the steps of:
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receiving a first transmission of a packet sent from a transmitter station to a receiver station, determining that transmission of the packet has been suspended by the transmitter station due to the transmitter station receiving no information related to whether the first transmission of the packet is successfully decoded at the receiver station, sending to the transmitter station a resource grant, wherein said resource grant indicates whether to resend the packet or send another packet; receiving a second transmission of the packet from the transmitter station to the receiver station if the resource grant indicates to resend the packet; and receiving a first transmission of the other packet if the resource grant indicates to send the other packet, wherein ACK information for the first transmission of the packet is sent by the receiver station but is not received by the transmitter station due to no opportunity to receive the ACK information and wherein the no opportunity to receive the ACK information is due to the transmitter station either listening for at least one of system information on a physical broadcast channel or a synchronization signal from another station or transmitting at least one of system information on a physical broadcast channel or a synchronization signal.
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Specification