Control channel based broadcast messaging

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

• identifying, within a subframe, a first search space for transmitting on a downlink control channel that occupies a first number of physical resource blocks (PRBs) that represents a narrowband within a system bandwidth comprising a plurality of narrowbands;
• transmitting broadcast control information on the downlink control channel, to a user equipment (UE), using a decoding candidate in the first search space, wherein the broadcast control information comprises information for a paging message;
• and
• identifying the narrowband, used for the paging message, according to a UE-ID-to-narrowband mapping rule, wherein:
• the UE-ID-to-narrowband mapping rule maps a UE ID to a narrow band region for paging;
• and
• the narrowband is different from one or more other narrowbands of the plurality of narrowbands used for paging messages for one or more other UEs.

An apparatus for wireless communications by a user equipment (UE), comprising:

• at least one processor;
• and
• a memory coupled with the at least one processor, comprising instructions executable by the at least one processor to cause the apparatus to:
• identify, within a subframe, a first search space to monitor for a transmission on a downlink control channel that occupies a first number of physical resource blocks (PRBs) that represents a narrowband within a system bandwidth comprising a plurality of narrowbands;
• monitor at least the first search space for broadcast control information transmitted on the downlink control channel, wherein the broadcast control information comprises information for a paging message;
• and
• identify the narrowband, used for the paging message, according to a UE-ID-to-narrowband mapping rule, wherein:
• the UE-ID-to-narrowband mapping rule maps a UE ID to a narrow band region for paging;
• and
• the narrowband is different from one or more other narrowbands of the plurality of narrowbands used for paging messages for one or more other UEs.

An apparatus for wireless communications by a base station (BS), comprising:

• at least one processor;
• and
• a memory coupled with the at least one processor, comprising instructions executable by the at least one processor to cause the apparatus to:
• identify, within a subframe, a first search space for transmitting on a downlink control channel that occupies a first number of physical resource blocks (PRBs) that represents a narrowband within a system bandwidth comprising a plurality of narrowbands;
• and
• a transmitter configured to transmit broadcast control information on the downlink control channel, to a user equipment (UE), using a decoding candidate in the first search space, wherein the broadcast control information comprises information for a paging message;
• and
• the memory further comprising instructions executable by the at least one processor to cause the apparatus to identify the narrowband, used for the paging message, according to a UE-ID-to-narrowband mapping rule, wherein:
• the UE-ID-to-narrowband mapping rule maps a UE ID to a narrow band region for paging;
• and
• the narrowband is different from one or more other narrowbands of the plurality of narrowbands used for paging messages for one or more other UEs.

An apparatus for wireless communications by a user equipment (UE), comprising:

• means for identifying, within a subframe, a first search space to monitor for a transmission on a downlink control channel that occupies a first number of physical resource blocks (PRBs) that represents a narrowband within a system bandwidth comprising a plurality of narrowbands;
• means for monitoring at least the first search space for broadcast control information transmitted on the downlink control channel, wherein the broadcast control information comprises information for a paging message;
• and
• means for identifying the narrowband, used for the paging message, according to a UE-ID-to-narrowband mapping rule, wherein:
• the UE-ID-to-narrowband mapping rule maps a UE ID to a narrow band region for paging;
• and
• the narrowband is different from one or more other narrowbands of the plurality of narrowbands used for paging messages for one or more other UEs.

An apparatus for wireless communications by a base station (BS), comprising:

• means for identifying, within a subframe, a first search space monitored by a user equipment (UE) for transmitting on a downlink control channel that occupies a first number of physical resource blocks (PRBs) that represents a narrowband within a system bandwidth comprising a plurality of narrowbands;
• means for transmitting broadcast control information on the downlink control channel, to a user equipment (UE), using a decoding candidate in the first search space, wherein the broadcast control information comprises information for a paging message;
• and
• means for identifying the narrowband, used for the paging message, according to a UE-ID-to-narrowband mapping rule, wherein:
• the UE-ID-to-narrowband mapping rule maps a UE ID to a narrow band region for paging;
• and
• the narrowband is different from one or more other narrowbands of the plurality of narrowbands used for paging messages for one or more other UEs.

A non-transitory computer-readable medium, comprising code which is executable by at least one processor, the code comprising:

• code to identify, within a subframe, a first search space to monitor for a transmission on a downlink control channel that occupies a first number of physical resource blocks (PRBs) that represents a narrowband within a system bandwidth comprising a plurality of narrowbands;
• code to monitor at least the first search space for broadcast control information transmitted on the downlink control channel, wherein the broadcast control information comprises information for a paging message;
• and
• code to identify the narrowband, used for the paging message, according to a UE-ID-to-narrowband mapping rule, wherein:
• the UE-ID-to-narrowband mapping rule maps a UE ID to a narrow band region for paging;
• and
• the narrowband is different from one or more other narrowbands of the plurality of narrowbands used for paging messages for one or more other UEs.

A non-transitory computer-readable medium, comprising code which is executable by at least one processor, the code comprising:

• code to identify, within a subframe, a first search space for transmitting on a downlink control channel that occupies a first number of physical resource blocks (PRBs) that represents a narrowband within a system bandwidth comprising a plurality of narrowbands;
• code to transmit broadcast control information on the downlink control channel, to a user equipment (UE), using a decoding candidate in the first search space, wherein the broadcast control information comprises information for a paging message;
• and
• code to identify the narrowband, used for the paging message, according to a UE-ID-to-narrowband mapping rule, wherein identifying the first search space is based at least in part on the identified narrowband, wherein:
• the UE-ID-to-narrowband mapping rule maps a UE ID to a narrow band region for paging;
• and
• the narrowband is different from one or more other narrowbands of the plurality of narrowbands used for paging messages for one or more other UEs.