US 10,484,147 B2Granted

Techniques for enhanced machine type communication acknowledgment bundling

AssigneeQUALCOMM Incorporated

InventorsKapil Bhattad, Alberto Rico Alvarino

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Abstract

Techniques and apparatus for hybrid automatic retransmission request (HARQ) acknowledgement (ACK) bundling in half duplex frequency division duplexing (HD-FDD) systems are provided. One technique includes determining ACK parameter(s) to be used for acknowledging a bundled transmission that includes instance(s) of a channel across subframe(s). An indication of the ACK parameter(s) is signaled to a user equipment (UE). The ACK parameter(s) include a first ACK parameter that conveys a size of the bundled transmission and a second ACK parameter that conveys an amount of time for the UE to delay acknowledging a data transmission in an instance of the channel after receiving the data transmission. The UE may acknowledge the bundled transmission in accordance with the ACK parameter(s).

Claims30

Dependent claims

A method for wireless communication by a base station (BS), comprising:

determining a plurality of acknowledgment (ACK) parameters for acknowledging a transmission comprising a plurality of instances of a data channel across a plurality of subframes, wherein the plurality of ACK parameters are determined for each instance of a plurality of instances of a control channel, each instance of the plurality of instances of the control channel being associated with a different instance of the plurality of instances of the data channel in the transmission, such that an ACK for the plurality of instances of the data channel across the plurality of the subframes is sent on a single uplink subframe;
and
signaling an indication of the plurality of ACK parameters determined for each instance of the plurality of instances of the control channel to a user equipment (UE), wherein:
the plurality of ACK parameters determined for each instance of the plurality of instances of the control channel comprise a first ACK parameter that conveys a size of the transmission and a second ACK parameter that conveys an amount of time for the UE to delay acknowledging a data transmission in the associated instance of the data channel after receiving the data transmission;
the first ACK parameter of the plurality of ACK parameters for the instance of the control channel associated with a last instance of the data channel in the transmission indicates a correct size of the transmission;
and
the size of the transmission comprises a number of the plurality of instances of the data channel in the transmission.

4 more elements

A method for wireless communications by a user equipment (UE), comprising:

receiving an indication of a plurality of acknowledgement (ACK) parameters for acknowledging a transmission comprising a plurality of instances of a data channel across a plurality of subframes;
and
acknowledging the transmission in accordance with the plurality of ACK parameters, wherein:
the plurality of ACK parameters are indicated for each instance of a plurality of instances of a control channel, each instance of the plurality of instances of the control channel being associated with a different instance of the plurality of instances of the data channel in the transmission, such that acknowledging the transmission comprises sending an ACK or negative ACK (NACK) for the plurality of instances of the data channel received across the plurality of the subframes on a single uplink subframe;
the plurality of ACK parameters indicated for each instance of the plurality of instances of the control channel comprise a first ACK parameter that conveys a size of the transmission and a second ACK parameter that conveys an amount of time for the UE to delay acknowledging a data transmission in the associated instance of the data channel after receiving the data transmission;
the first ACK parameter of the plurality of ACK parameters indicated for the instance of the control channel associated with a last instance of the data channel in the transmission indicates a correct size of the transmission;
and
the size of the transmission comprises a number of the plurality of instances of the data channel in the transmission.

5 more elements

An apparatus for wireless communication, comprising:

at least one processor configured to:
determine a plurality of acknowledgment (ACK) parameters for acknowledging a transmission comprising a plurality of instances of a data channel across a plurality of subframes, wherein the plurality of ACK parameters are determined for each instance of a plurality of instances of a control channel, each instance of the plurality of instances of the control channel being associated with a different instance of the plurality of instances of the data channel in the transmission, such that an ACK for the plurality of instances of the data channel across the plurality of the subframes is sent on a single uplink subframe;
and
signal an indication of the plurality of ACK parameters determined for each instance of the plurality of instances of the control channel to a user equipment (UE), wherein:
the plurality of ACK parameters determined for each instance of the plurality of instances of the control channel comprise a first ACK parameter that conveys a size of the transmission and a second ACK parameter that conveys an amount of time for the UE to delay acknowledging a data transmission in the associated instance of the data channel after receiving the data transmission;
the first ACK parameter of the plurality of ACK parameters for the instance of the control channel associated with a last instance of the data channel in the transmission indicates a correct size of the transmission;
and
the size of the transmission comprises a number of the plurality of instances of the data channel in the transmission;
and
a memory coupled to the at least one processor.

7 more elements

An apparatus for wireless communication, comprising:

at least one processor configured to:
receive an indication of a plurality of acknowledgement (ACK) parameters for acknowledging a transmission comprising a plurality of instances of a data channel across a plurality of subframes;
and
acknowledge the transmission in accordance with the plurality of ACK parameters, wherein:
the plurality of ACK parameters are indicated for each instance of a plurality of instances of a control channel, each instance of the plurality of instances of the control channel being associated with a different instance of the plurality of instances of the data channel in the transmission, such that acknowledging the transmission comprises sending an ACK or negative ACK (NACK) for the plurality of instances of the data channel received across the plurality of the subframes on a single uplink subframe;
the plurality of ACK parameters indicated for each instance of the plurality of instances of the control channel comprise a first ACK parameter that conveys a size of the transmission and a second ACK parameter that conveys an amount of time for the apparatus to delay acknowledging a data transmission in the associated instance of the data channel after receiving the data transmission;
the first ACK parameter of the plurality of ACK parameters indicated for the instance of the control channel associated with a last instance of the data channel in the transmission indicates a correct size of the transmission;
and
the size of the transmission comprises a number of the plurality of instances of the data channel in the transmission;
and
a memory coupled to the at least one processor.

8 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/886,244Filed 1 Feb 2018
Published: US 2018/0227088 A19 Aug 2018
Granted: 19 Nov 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification20 codes

H04L 1/1861
Arrangements specially adapted for the receiver end: physical mapping arrangements
H04L 1/1621
Details of the supervisory signal: group acknowledgement, i.e. the acknowledgement message defining a range of identifiers, e.g. of sequence numbers
H04L 1/1635
Details of the supervisory signal: cumulative acknowledgement, i.e. the acknowledgement message applying to all previous messages
H04L 1/1657
Details of the supervisory signal: implicit acknowledgement of correct or incorrect reception, e.g. with a moving window

Family

US 2018/0227088 A1Pre-grant publication · published 9 Aug 2018
US 10,484,147 B2This patent

From the US filing history. Foreign family members aren’t listed.

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