System information block segmentation

1 . A processor of a user equipment (UE) configured to perform operations comprising:

receiving a first signal from a base station, wherein the first signal includes a first system information block (SIB) segment of a SIB;

receiving a second signal from the base station, wherein the second signal includes a second SIB segment of the SIB and an indication that the SIB has been modified;

discarding the first SIB segment in response to the indication that the SIB has been modified;

receiving a third signal from the base station, wherein the third signal includes a third SIB segment of the SIB;

reassembling the SIB using at least the second and third SIB segments; and

decoding contents of the SIB, wherein the second SIB segment and the third SIB segment includes configuration information comprising tracking reference signal (TRS) information including first configuration information common to multiple beams in TRS resources and second configuration information for a specific beam in the TRS resources.

2 . The processor of claim 1 , wherein the first signal comprises a container including a segment number parameter and an octet string.

3 . The processor of claim 1 , wherein decoding the SIB is based on a first octet string included in the second signal and a second octet string included in the third signal.

4 . The processor of claim 1 , wherein the third signal comprises a container including an indication for whether the third SIB segment is a last SIB segment of the SIB.

5 . The processor of claim 1 , wherein individual SIB segments are not self abstract syntax notation one (ASN. 1 ) decodable.

6 . A processor of a base station configured to perform operations comprising:

encoding an unsegmented complete system information block (SIB) that is to be transmitted to one or more user equipment (UE);

partitioning the unsegmented complete SIB into multiple SIB segments;

transmitting a first signal, wherein the first signal includes a first SIB segment; and

transmitting a second signal, wherein the second signal includes a second SIB segment and an indication that the SIB has been modified, wherein the one or more UE discards the first SIB segment in response to the indication that the SIB has been modified;

transmitting a third signal, wherein the third signal includes a third SIB segment of the SIB, and wherein the one or more UE is to reassemble the multiple SIB segments prior to decoding contents of the SIB, wherein the second SIB segment and the third SIB segment includes configuration information comprising tracking reference signal (TRS) information including first configuration information common to multiple beams in TRS resources and second configuration information for a specific beam in the TRS resources.

7 . The processor of claim 6 , wherein the first signal comprises a container including a segment number parameter and an octet string.

8 . The processor of claim 6 , wherein the first signal comprises a container including an indication for whether the third SIB segment is a last SIB segment of an entirety of the SIB.

9 . The processor of claim 6 , wherein individual SIB segments are not self abstract syntax notation one (ASN. 1 ) decodable at the one or more UE.

10 . The processor of claim 6 , wherein the first and second SIB segments are initially transmitted during a first repetition period and retransmitted during a second repetition period.

11 . A user equipment (UE) comprising:

a transceiver configured to connected to a network; and

a processor configured to perform operations comprising:

receiving a first signal from a base station, wherein the first signal includes a first system information block (SIB) segment of a SIB;

receiving a second signal from the base station, wherein the second signal includes a second SIB segment of the SIB, wherein the SIB includes configuration information comprising tracking reference signal (TRS) information and an indication that the SIB has been modified;

discarding the first SIB segment in response to the indication that the SIB has been modified;

receiving a third signal from the base station, wherein the third signal includes a third SIB segment of the SIB;

reassembling the SIB using at least the second and third SIB segments; and

decoding contents of the SIB, wherein the second SIB segment and the third SIB segment includes configuration information comprising tracking reference signal (TRS) information including first configuration information common to multiple beams in TRS resources and second configuration information for a specific beam in the TRS resources.

12 . The processor of claim 11 , wherein each SIB segment is self abstract syntax notation one (ASN. 1 ) decodable.

13 . The processor of claim 11 , wherein the indication is included in a short message.

14 . The processor of claim 11 , wherein the indication identifies one or more SIB segments via a bitmap.

15 . The processor of claim 11 , wherein the processor is configured to perform further operations comprising:

transmitting an on demand system information request comprising a bitmap identifying only a subset of multiple SIB segments.