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US 2014/0195882 A1Published application
Additional error protection for wireless transmission
AssigneeQUALCOMM Incorporated
InventorsAlfred Asterjadhi, Bin Tian
Life of this patent
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Abstract
Certain aspects of the present disclosure provide methods and apparatus for enhancing error protection for wireless transmissions.
Claims70
An apparatus for wireless communications, comprising:
- a receiver configured to receive a packet from another apparatus, the packet comprising a first error check value generated based on a remaining portion of the packet and a second error check value generated based on information known or expected by the apparatus and other information transmitted in the packet;
- and
- a processing system configured to:
- perform a first error check of the packet based on a comparison of the first error check value and an error check value generated by the apparatus for the remaining portion of the packet,
- reconstruct a value of the known or expected information based on the second error check value and the other information transmitted in the packet,
- perform a second error check of the packet based on comparison of the reconstructed value and an expected value of the information known or expected by the apparatus, and
- discard the packet if either the first error check fails or the reconstructed value differs from the known or expected value.
4 more elements
An apparatus for wireless communications, comprising:
- a processing system configured to:
- generate a first error check value for a packet to be transmitted to another apparatus, the first error check value generated based on a remaining portion of the packet,
- generate a second error check value for the packet based on information known or expected by the other apparatus and other information transmitted in the packet;
- and
- a transmitter configured to transmit the packet to the other apparatus, the packet comprising the first and second error check values.
2 more elements
An apparatus for wireless communications, comprising:
- means for receiving a packet from another apparatus, the packet comprising a first error check value generated based on a remaining portion of the packet and a second error check value generated based on information known or expected by the apparatus and other information transmitted in the packet;
- means for performing a first error check of the packet based on a comparison of the first error check value and an error check value generated by the apparatus for the remaining portion of the packet;
- means for reconstructing a value of the known or expected information based on the second error check value and the other information transmitted in the packet;
- means for performing a second error check of the packet based on comparison of the reconstructed value and an expected value of the information known or expected by the apparatus;
- and
- means for discarding the packet if either the first error check fails or the reconstructed value differs from the expected value.
3 more elements
An apparatus for wireless communications, comprising:
- means for generating a first error check value for a packet to be transmitted to another apparatus, the first error check value generated based on a remaining portion of the packet;
- means for generating a second error check value for the packet based on information known or expected by the other apparatus and other information transmitted in the packet;
- and
- means for transmitting the packet to the other apparatus, the packet comprising the first and second error check values.
1 more element
A method for wireless communications by an apparatus, comprising:
- receiving a packet from another apparatus, the packet comprising a first error check value generated based on a remaining portion of the packet and a second error check value generated based on information known or expected by the apparatus and other information transmitted in the packet;
- performing a first error check of the packet based on a comparison of the first error check value and an error check value generated by the apparatus for the remaining portion of the packet;
- reconstructing a value of the known or expected information based on the second error check value and the other information transmitted in the packet;
- performing a second error check of the packet based on comparison of the reconstructed value and an expected value of the information known or expected by the apparatus;
- and
- discarding the packet if either the first error check fails or the reconstructed value differs from the expected value.
3 more elements
A method for wireless communications by an apparatus, comprising:
- generating a first error check value for a packet to be transmitted to another apparatus, the first error check value generated based on a remaining portion of the packet;
- generating a second error check value for the packet based on information known or expected by the other apparatus and other information transmitted in the packet;
- and
- transmitting the packet to the other apparatus, the packet comprising the first and second error check values.
1 more element
A computer program product for wireless communications by an apparatus comprising a computer readable medium having instructions stored thereon, the instructions executable by an apparatus for:
- receiving a packet from another apparatus, the packet comprising a first error check value generated based on a remaining portion of the packet and a second error check value generated based on information known or expected by the apparatus and other information transmitted in the packet;
- performing a first error check of the packet based on a comparison of the first error check value and an error check value generated by the apparatus for the remaining portion of the packet;
- reconstructing a value of the known or expected information based on the second error check value and the other information transmitted in the packet;
- performing a second error check of the packet based on comparison of the reconstructed value and an expected value of the information known or expected by the apparatus;
- and
- discarding the packet if either the first error check fails or the reconstructed value differs from the expected value.
3 more elements
A computer program product for wireless communications by an apparatus comprising a computer readable medium having instructions stored thereon, the instructions executable by an apparatus for:
- generating a first error check value for a packet to be transmitted to another apparatus, the first error check value generated based on a remaining portion of the packet;
- generating a second error check value for the packet based on information known or expected by the device and other information transmitted in the packet;
- and
- transmitting the packet to the device, the packet comprising the first and second error check values.
1 more element
A station, comprising:
- at least one antenna;
- a receiver configured to receive, via the at least one antenna, a packet from another station, the packet comprising a first error check value generated based on a remaining portion of the packet and a second error check value generated based on information known or expected by the station and other information transmitted in the packet;
- and
- a processing system configured to:
- perform a first error check of the packet based on a comparison of the first error check value and an error check value generated by the station for the remaining portion of the packet,
- reconstruct a value of the known or expected information based on the second error check value and the other information transmitted in the packet,
- perform a second error check of the packet based on comparison of the reconstructed value and an expected value of the information known or expected by the station, and
- discard the packet if either the first error check fails or the reconstructed value differs from the expected value.
5 more elements
A station, comprising:
- at least one antenna;
- a processing system configured to:
- generate a first error check value for a packet to be transmitted to another station, the first error check value generated based on a remaining portion of the packet,
- generate a second error check value for the packet based on information known or expected by the other station and other information transmitted in the packet;
- and
- a transmitter configured to transmit, via the at least one antenna, the packet to the other station, the packet comprising the first and second error check values.
3 more elements
Dependencies are inferred from the claim text.