Short burst channel design and multiplexing
AssigneeQUALCOMM Incorporated
InventorsRenqiu Wang, Yi Huang, Hao Xu, Tingfang Ji, Seyong Park
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Abstract
Certain aspects of the present disclosure relate to methods and apparatus for short uplink burst designs. In some cases, one sequence, from a plurality of sequences, may be transmitted in multiple tones of at least one short burst symbol conveying at least one bit of information. The plurality of sequences may have the same values at a first set of common tone locations for demodulation reference signals (DMRS) and groups of sequences from the plurality of sequences may be identified, each sequence in a group having a second set of common tone locations for DMRS.
Claims30
A method for wireless communications by a receiver, comprising:
- receiving a sequence transmitted in multiple tones of at least one short burst symbol, the sequence conveying at least one bit of information;
- identifying a plurality of groups of sequence hypotheses having same values at a first set of common demodulation reference signals (DMRS) tone locations, each sequence hypothesis in a group having a second set of common DMRS tone locations;
- performing group level channel, noise, and interference estimation, based on DMRS tone locations within the group;
- using the channel, noise, and interference estimation for each group in the one or more groups to evaluate the corresponding sequence hypotheses in that group;
- and
- determining, based on the evaluation, discontinuous transmission (DTX) or the sequence received and the bit of information conveyed.
An apparatus for wireless communications by a receiver, comprising:
- a receiver configured to receive a sequence transmitted in multiple tones of at least one short burst symbol, the sequence conveying at least one bit of information;
- and
- at least one processor configured to
- identify a plurality of groups of sequence hypotheses having same values at a first set of common demodulation reference signals (DMRS) tone locations, each sequence hypothesis in a group having a second set of common DMRS tone locations,
- perform group level channel, noise, and interference estimation, based on DMRS tone locations within the group,
- use the channel, noise, and interference estimation for each group in the one or more groups to evaluate the corresponding sequence hypotheses in that group, and
- determine, based on the evaluation, discontinuous transmission (DTX) or the sequence received and the bit of information conveyed.
An apparatus for wireless communications, comprising:
- means for receiving a sequence transmitted in multiple tones of at least one short burst symbol, the sequence conveying at least one bit of information;
- means for identifying a plurality of groups of sequence hypotheses having same values at a first set of common demodulation reference signals (DMRS) tone locations, each sequence hypothesis in a group having a second set of common DMRS tone locations;
- means for performing group level channel, noise, and interference estimation, based on DMRS tone locations within the group;
- means for using the channel, noise, and interference estimation for each group in the one or more groups to evaluate the corresponding sequence hypotheses in that group;
- and
- means for determining, based on the evaluation, discontinuous transmission (DTX) or the sequence received and the bit of information conveyed.
A non-transitory computer readable medium having computer executable code stored thereon for wireless communications, comprising:
- code for receiving a sequence transmitted in multiple tones of at least one short burst symbol, the sequence conveying at least one bit of information;
- code for identifying a plurality of groups of sequence hypotheses having same values at a first set of common demodulation reference signals (DMRS) tone locations, each sequence hypothesis in a group having a second set of common DMRS tone locations;
- code for performing group level channel, noise, and interference estimation, based on DMRS tone locations within the group;
- code for using the channel, noise, and interference estimation for each group in the one or more groups to evaluate the corresponding sequence hypotheses in that group;
- and
- code for determining, based on the evaluation, discontinuous transmission (DTX) or the sequence received and the bit of information conveyed.
Dependencies are inferred from the claim text.