System information in unlicensed narrowband internet of things (NB-IOT) systems
Methods, systems, and storage media are described for the transmission of system information in narrowband Internet-of-Things (NB-IoT) systems. Other embodiments may be described and/or claimed.
1. One or more non-transitory, computer-readable media storing instructions, that, when executed by one or more processors, cause a base station to:
generate a system information block type 1-narrowband (SIB1-NB) message; and
encode the SIB1-NB message for transmission to a user equipment (UE) via a narrow band Internet of things (NB-IoT) physical resource block (PRB) of a plurality of anchor channels that include a narrow band primary synchronization signal (NPSS), a narrow band secondary synchronization signal (NSSS), or a narrowband physical broadcast channel (NPBCH), wherein the SIB1-NB message is encoded for transmission across at least two beginning downlink subframes of at least two of the plurality of anchor channels.
2. The one or more non-transitory, computer-readable media of claim 1 , wherein the SIB1-NB message is encoded for repeated transmission with a periodicity of 2560 ms or 5120 ms.
3. The one or more non-transitory, computer-readable media of claim 1 , wherein the SIB1-NB message occupies a first subframe and a second subframe of each anchor channel of the plurality of anchor channels.
4. The one or more non-transitory, computer-readable media of claim 1 , wherein the SIB1-NB message occupies four beginning downlink subframes of at least two of the plurality of anchor channels.
5. The one or more non-transitory, computer-readable media of claim 1 , wherein the SIB1-NB message occupies eight beginning downlink subframes of at least two of the plurality of anchor channels.
6. The one or more non-transitory, computer-readable media of claim 1 , wherein the SIB1-NB message occupies four channels for four repetitions.
7. The one or more non-transitory, computer-readable media of claim 1 , wherein the SIB1-NB message occupies eight channels for eight repetitions.
8. The one or more non-transitory, computer-readable media of claim 1 , wherein the SIB1-NB message occupies sixteen channels for sixteen repetitions.
9. An apparatus comprising:
memory; and
processing circuitry, coupled with the memory, configured to:
retrieve system information block type 1-narrowband (SIB1-NB) information stored in the memory;
generate a SIB1-NB message that includes the SIB1-NB information; and
encode the SIB1-NB message for transmission to a user equipment (UE) via a narrow band Internet of things (NB-IoT) physical resource block (PRB) of a plurality of anchor channels that include a narrow band primary synchronization signal (NPSS), a narrow band secondary synchronization signal (NSSS), or a narrowband physical broadcast channel (NPBCH), wherein the SIB1-NB message is encoded for transmission across at least two beginning downlink subframes of at least two of the plurality of anchor channels.
10. The apparatus of claim 9 , wherein the SIB1-NB message is encoded for repeated transmission with a periodicity of 2560 ms or 5120 ms.
11. The apparatus of claim 9 , wherein the SIB1-NB message occupies a first subframe and a second subframe of each anchor channel of the plurality of anchor channels.
12. The apparatus of claim 9 , wherein the SIB1-NB message occupies four beginning downlink subframes of at least two of the plurality of anchor channels.
13. The apparatus of claim 9 , wherein the SIB1-NB message occupies eight beginning downlink subframes of at least two of the plurality of anchor channels.
14. The apparatus of claim 9 , wherein the SIB1-NB message occupies four channels for four repetitions.
15. The apparatus of claim 9 , wherein the SIB1-NB message occupies eight channels for eight repetitions.
16. The apparatus of claim 9 , wherein the SIB1-NB message occupies sixteen channels for sixteen repetitions.
17. A method performed by a base station, comprising:
generating a system information block type 1-narrowband (SIB1-NB) message;
encoding the SIB1-NB message for transmission to a user equipment (UE) via a narrow band Internet of things (NB-IoT) physical resource block (PRB) of a plurality of anchor channels that include a narrow band primary synchronization signal (NPSS), a narrow band secondary synchronization signal (NSSS), or a narrowband physical broadcast channel (NPBCH), wherein the SIB1-NB message is encoded for transmission across at least two beginning downlink subframes of at least two of the plurality of anchor channels.
18. The method of claim 17 , wherein the SIB1-NB message is encoded for repeated transmission with a periodicity of 2560 ms or 5120 ms.
19. The method of claim 17 , wherein the SIB1-NB message occupies a first subframe and a second subframe of each anchor channel of the plurality of anchor channels.
20. The method of claim 17 , wherein the SIB1-NB message occupies four beginning downlink subframes of at least two of the plurality of anchor channels.