Narrow-band physical control channel design

A method of communication at a user equipment (UE), comprising:

• determining a deployment mode of a narrow-band physical channel;
• receiving information mapped to resources allocated to the narrow-band physical channel, wherein the receiving is based at least in part on a transmission mode that is common to both a narrow-band physical downlink control channel (NB-PDCCH) within a first subframe and a narrow-band physical downlink shared channel (NB-PDSCH) within a second subframe, and wherein the receiving comprises demodulating based at least in part on narrow-band cell-specific reference signals (NB-CRS), and wherein the receiving is based at least in part on transmit diversity, and wherein the transmit diversity is based at least in part on a space frequency block coding (SFBC) scheme, and wherein the SFBC scheme is common to both the NB-PDCCH and the NB-PDSCH;
• determining a rate matching configuration associated with the resources allocated to the narrow-band physical channel based at least in part on the deployment mode;
• and
• decoding the received information based at least in part on the rate matching configuration.

A method of communication at a wireless device, comprising:

• receiving a narrow-band physical control channel;
• identifying, in the narrow-band physical control channel, a data transmission comprising a first data header and a data payload received via a set of resources of the narrow-band physical control channel, wherein the set of resources has a same size as at least one downlink control information (DCI) format supported by the narrow-band physical control channel, and wherein the at least one DCI format is associated with a first cyclic redundancy check value of a first length and a first radio network temporary identifier associated with a control transmission, and wherein the identifying is based at least in part on the data transmission having a second cyclic redundancy check value of a second length that is different than the first length and a second radio network temporary identifier associated with the data transmission that is different than the first radio network temporary identifier associated with the control transmission;
• and
• communicating with a base station based at least in part on the identified data transmission.

An apparatus for wireless communication, comprising:

• means for allocating, in a downlink carrier comprising a plurality of resource blocks over a plurality of subframes, a first set of resource elements for cell-specific reference signals (CRS) associated with communication with one or more communication devices of a first type;
• means for allocating resources of a resource block of the plurality of resource blocks to a narrow-band physical channel for communication with one or more communication devices of a second type, the allocated resources being rate-matched around the first set of resource elements and a second set of resource elements allocated to narrow-band CRS (NB-CRS) associated with communication with the one or more communication devices of the second type;
• and
• means for transmitting information to the one or more communication devices of the second type mapped to the allocated resources of the narrow-band physical channel, wherein the transmitting is based at least in part on a transmission mode that is common to both a narrow-band physical downlink control channel (NB-PDCCH) within a first subframe and a narrow-band physical downlink shared channel (NB-PDSCH) within a second subframe, and wherein the transmitting is based at least in part on transmit diversity, and wherein the transmit diversity is based at least in part on a space frequency block coding (SFBC) scheme, and wherein the SFBC scheme is common to both the NB-PDCCH and the NB-PDSCH.

An apparatus for wireless communication, comprising:

• means for determining a deployment mode of a narrow-band physical channel;
• means for receiving information mapped to resources allocated to the narrow-band physical channel, wherein the receiving is based at least in part on a transmission mode that is common to both a narrow-band physical downlink control channel (NB-PDCCH) within a first subframe and a narrow-band physical downlink shared channel (NB-PDSCH) within a second subframe, and wherein the receiving comprises demodulating based at least in part on narrow-band cell-specific reference signals (NB-CRS), and wherein the receiving is based at least in part on transmit diversity, and wherein the transmit diversity is based at least in part on a space frequency block coding (SFBC) scheme, and wherein the SFBC scheme is common to both the NB-PDCCH and the NB-PDSCH;
• means for determining a rate matching configuration associated with the resources allocated to the narrow-band physical channel based at least in part on the deployment mode;
• and
• means for decoding the received information based at least in part on the rate matching configuration.

An apparatus for wireless communication, comprising:

• means for receiving a narrow-band physical control channel;
• means for identifying, in the narrow-band physical control channel, a data transmission comprising a first data header and a data payload received via a set of resources of the narrow-band physical control channel, wherein the set of resources has a same size as at least one downlink control information (DCI) format supported by the narrow-band physical control channel, and wherein the at least one DCI format is associated with a first cyclic redundancy check value of a first length and a first radio network temporary identifier associated with a control transmission, and wherein the identifying is based at least in part on the data transmission having a second cyclic redundancy check value of a second length that is different than the first length and a second radio network temporary identifier associated with the data transmission that is different than the first radio network temporary identifier associated with the control transmission;
• and
• means for communicating with a base station based at least in part on the identified data transmission.

An apparatus for wireless communication, in a system comprising:

• a processor;
• memory in electronic communication with the processor;
• and
• instructions stored in the memory and operable, when executed by the processor, to cause the apparatus to:
• allocate, in a downlink carrier comprising a plurality of resource blocks over a plurality of subframes, a first set of resource elements for cell-specific reference signals (CRS) associated with communication with one or more communication devices of a first type;
• allocate resources of a resource block of the plurality of resource blocks to a narrow-band physical channel for communication with one or more communication devices of a second type, the allocated resources being rate-matched around the first set of resource elements and a second set of resource elements allocated to narrow-band CRS (NB-CRS) associated with communication with the one or more communication devices of the second type;
• and
• transmit information to the one or more communication devices of the second type mapped to the allocated resources of the narrow-band physical channel, wherein the transmitting is based at least in part on a transmission mode that is common to both a narrow-band physical downlink control channel (NB-PDCCH) within a first subframe and a narrow-band physical downlink shared channel (NB-PDSCH) within a second subframe, and wherein the transmitting is based at least in part on transmit diversity, and wherein the transmit diversity is based at least in part on a space frequency block coding (SFBC) scheme, and wherein the SFBC scheme is common to both the NB-PDCCH and the NB-PDSCH.

An apparatus for wireless communication, in a system comprising:

• a processor;
• memory in electronic communication with the processor;
• and
• instructions stored in the memory and operable, when executed by the processor, to cause the apparatus to:
• determine a deployment mode of a narrow-band physical channel;
• receive information mapped to resources allocated to the narrow-band physical channel, wherein the receiving is based at least in part on a transmission mode that is common to both a narrow-band physical downlink control channel (NB-PDCCH) within a first subframe and a narrow-band physical downlink shared channel (NB-PDSCH) within a second subframe, and wherein the receiving comprises demodulating based at least in part on narrow-band cell-specific reference signals (NB-CRS), and wherein the receiving is based at least in part on transmit diversity, and wherein the transmit diversity is based at least in part on a space frequency block coding (SFBC) scheme, and wherein the SFBC scheme is common to both the NB-PDCCH and the NB-PDSCH;
• determine a rate matching configuration associated with the resources allocated to the narrow-band physical channel based at least in part on the deployment mode;
• and
• decode the received information based at least in part on the rate matching configuration.

An apparatus for wireless communication, in a system comprising:

• a processor;
• memory in electronic communication with the processor;
• and
• instructions stored in the memory and operable, when executed by the processor, to cause the apparatus to:
• receive a narrow-band physical control channel;
• identify, in the narrow-band physical control channel, a data transmission comprising a first data header and a data payload received via a set of resources of the narrow-band physical control channel, wherein the set of resources has a same size as at least one downlink control information (DCI) format supported by the narrow-band physical control channel, and wherein the at least one DCI format is associated with a first cyclic redundancy check value of a first length and a first radio network temporary identifier associated with a control transmission, and wherein the identifying is based at least in part on the data transmission having a second cyclic redundancy check value of a second length that is different than the first length and a second radio network temporary identifier associated with the data transmission that is different than the first radio network temporary identifier associated with the control transmission;
• and
• communicate with a base station based at least in part on the identified data transmission.

A non-transitory computer readable medium storing code for wireless communication, the code comprising instructions executable by a processor to:

• allocate, in a downlink carrier comprising a plurality of resource blocks over a plurality of subframes, a first set of resource elements for cell-specific reference signals (CRS) associated with communication with one or more communication devices of a first type;
• allocate resources of a resource block of the plurality of resource blocks to a narrow-band physical channel for communication with one or more communication devices of a second type, the allocated resources being rate-matched around the first set of resource elements and a second set of resource elements allocated to narrow-band CRS (NB-CRS) associated with communication with the one or more communication devices of the second type;
• and
• transmit information to the one or more communication devices of the second type mapped to the allocated resources of the narrow-band physical channel, wherein the transmitting is based at least in part on a transmission mode that is common to both a narrow-band physical downlink control channel (NB-PDCCH) within a first subframe and a narrow-band physical downlink shared channel (NB-PDSCH) within a second subframe, and wherein the transmitting is based at least in part on transmit diversity, and wherein the transmit diversity is based at least in part on a space frequency block coding (SFBC) scheme, and wherein the SFBC scheme is common to both the NB-PDCCH and the NB-PDSCH.

A non-transitory computer readable medium storing code for wireless communication, the code comprising instructions executable by a processor to:

• determine a deployment mode of a narrow-band physical channel;
• receive information mapped to resources allocated to the narrow-band physical channel, wherein the receiving is based at least in part on a transmission mode that is common to both a narrow-band physical downlink control channel (NB-PDCCH) within a first subframe and a narrow-band physical downlink shared channel (NB-PDSCH) within a second subframe, and wherein the receiving comprises demodulating based at least in part on narrow-band cell-specific reference signals (NB-CRS), and wherein the receiving is based at least in part on transmit diversity, and wherein the transmit diversity is based at least in part on a space frequency block coding (SFBC) scheme, and wherein the SFBC scheme is common to both the NB-PDCCH and the NB-PDSCH;
• determine a rate matching configuration associated with the resources allocated to the narrow-band physical channel based at least in part on the deployment mode;
• and
• decode the received information based at least in part on the rate matching configuration.

A non-transitory computer readable medium storing code for wireless communication, the code comprising instructions executable by a processor to:

• receive a narrow-band physical control channel;
• identify, in the narrow-band physical control channel, a data transmission comprising a first data header and a data payload received via a set of resources of the narrow-band physical control channel, wherein the set of resources has a same size as at least one downlink control information (DCI) format supported by the narrow-band physical control channel, and wherein the at least one DCI format is associated with a first cyclic redundancy check value of a first length and a first radio network temporary identifier associated with a control transmission, and wherein the identifying is based at least in part on the data transmission having a second cyclic redundancy check value of a second length that is different than the first length and a second radio network temporary identifier associated with the data transmission that is different than the first radio network temporary identifier associated with the control transmission;
• and
• communicate with a base station based at least in part on the identified data transmission.