Control channel design in orbital angular momentum (OAM) based communication system

A first device, comprising:

• a processing system configured to cause the first device to:
• transmit, in accordance with a first orbital angular momentum (OAM) mode, a first control channel on a first time-frequency resource;
• transmit, in accordance with a second OAM mode, at least one of a data channel or a second control channel on a second time-frequency resource that at least partially overlap with the first time-frequency resource in at least one of time or frequency;
• transmit alignment tracking reference signals in accordance with one or more OAM modes;
• and
• receive feedback indicating misalignment detected based on the alignment tracking reference signals.

A first device, comprising:

• a processing system configured to cause the first device to:
• transmit, in accordance with a first orbital angular momentum (OAM) mode, a first control channel on a first time-frequency resource;
• and
• transmit, in accordance with a second OAM mode, at least one of a data channel or a second control channel on a second time-frequency resource that at least partially overlap with the first time-frequency resource in at least one of time or frequency, wherein the first control channel transmitted in accordance with the first OAM mode schedules at least one of a data channel or a control channel to be transmitted with another OAM mode, and wherein the first control channel comprises a physical downlink control channel (PDCCH) with a downlink control information (DCI) field that indicates an index for the other OAM mode with which the data channel or control channel scheduled by the first control channel is to be transmitted.

A first device, comprising:

• a processing system configured to cause the first device to:
• transmit, in accordance with a first orbital angular momentum (OAM) mode, a first control channel on a first time-frequency resource;
• and
• transmit, in accordance with a second OAM mode, at least one of a data channel or a second control channel on a second time-frequency resource that at least partially overlap with the first time-frequency resource in at least one of time or frequency, wherein the first OAM mode comprises an anchor OAM mode the transmitter uses to indicate a data transfer.

A method for wireless communications by a receiver first device, comprising:

• a processing system configured to cause the first device to:
• receive, in accordance with a first orbital angular momentum (OAM) mode, a first control channel on a first time-frequency resource;
• receive, in accordance with a second OAM mode, at least one of a data channel or a second control channel on a second time-frequency resource that at least partially overlap with the first time-frequency resource in at least one of time or frequency;
• and
• perform at least one of:
• determine, based on the first OAM mode, a priority of the first control channel;
• or
• determine, based on the second OAM mode, a priority of the data channel or second control channel.

A first device, comprising:

• a processing system configured to cause the first device to:
• receive, in accordance with a first orbital angular momentum (OAM) mode, a first control channel on a first time-frequency resource;
• receive, in accordance with a second OAM mode, at least one of a data channel or a second control channel on a second time-frequency resource that at least partially overlap with the first time-frequency resource in at least one of time or frequency;
• receive alignment tracking reference signals in accordance with one or more OAM modes;
• and
• provide feedback indicating misalignment detected based on the alignment tracking reference signals.

A first device, comprising:

• a processing system configured to cause the first device to:
• receive, in accordance with a first orbital angular momentum (OAM) mode, a first control channel on a first time-frequency resource;
• and
• receive, in accordance with a second OAM mode, at least one of a data channel or a second control channel on a second time-frequency resource that at least partially overlap with the first time-frequency resource in at least one of time or frequency, wherein the first control channel received in accordance with the first OAM mode schedules at least one of a data channel or a control channel to be received in accordance with another OAM mode, and wherein the first control channel comprises a physical downlink control channel (PDCCH) with a downlink control information (DCI) field that indicates an index for the other OAM mode with which the data channel or control channel scheduled by the first control channel is to be received.

A first device, comprising:

• a processing system configured to cause the first device to:
• receive, in accordance with a first orbital angular momentum (OAM) mode, a first control channel on a first time-frequency resource;
• and
• receive, in accordance with a second OAM mode, at least one of a data channel or a second control channel on a second time-frequency resource that at least partially overlap with the first time-frequency resource in at least one of time or frequency, wherein the first OAM mode comprises an anchor OAM mode the receiver monitors for indications of a data transfer.

A first device, comprising:

• a processing system configured to cause the first device to:
• transmit, in accordance with a first orbital angular momentum (OAM) mode, a first control channel on a first time-frequency resource;
• and
• transmit, in accordance with a second OAM mode, at least one of a data channel or a second control channel on a second time-frequency resource that at least partially overlap with the first time-frequency resource in at least one of time or frequency, wherein the first control channel received in accordance with the first OAM mode schedules at least one of a data channel or a control channel to be received in accordance with another OAM mode, wherein the first OAM mode comprises an anchor OAM mode, and wherein, to receive the at least one of the data channel or the second control channel in accordance with the second OAM mode, the processing system is configured to receive the at least one of the data channel or the second control channel in accordance with the second OAM mode prior to reception of receiving the data channel or control channel scheduled by the first control channel.