Scalable system information block (SIB) bitmap structure
Aspects of the present disclosure provide a scalable SIB bitmap structure. As described herein, a UE may generate and transmit, to an access network, a dual-layer system information block (SIB) request, wherein a first layer indicates a SIB category and a second layer indicates one or more groups within the SIB category. A base station in an access network may receive, from a UE, the dual-layer SIB request. The scalable, efficient bitmap structure may be shared by the UE and access network, thereby enabling SIB-on-Demand requests by the UE and responses to SIB-on-Demand requests by the access network.
1. A method for wireless communication by a user equipment (UE), comprising:
generating a scalable dual-layer system information block (SIB) request, wherein a first layer indicates a SIB category including a subset of SIBs and a second layer indicates one or more groups within the SIB category; and
transmitting the dual-layer SIB request to an access network.
2. The method of claim 1 ,
wherein the one or more groups in a SIB category comprise a first subgroup,
wherein the first subgroup comprises a set of SIBs common to all groups within the SIB category.
3. The method of claim 2 ,
wherein the one or more groups further comprise a second subgroup,
wherein the second subgroup comprises a set of SIBs dedicated to a respective group of the SIB category.
4. The method of claim 1 , wherein the dual-layer SIB request comprises a request for a first SIB category and a second SIB category.
5. The method of claim 4 , wherein the first SIB category comprises SIBs the UE uses more frequently than the second SIB category.
6. The method of claim 1 , wherein the one or more groups comprise at least one of: enhanced mobile broadband (eMBB), mission critical, massive Machine Type Communications (mMTC) services, or Internet of Everything (IoE) services.
7. The method of claim 1 , wherein the dual-layer SIB request comprises a format flag which indicates the request is for one SIB category.
8. The method of claim 7 , wherein the dual-layer SIB request further comprises a one-bit category field which indicates the SIB category.
9. The method of claim 8 , wherein the dual-layer SIB request further comprises a bitmap which indicates the one or more groups within the SIB category.
10. The method of claim 1 , wherein the dual-layer SIB request comprises a format flag which indicates the request is for more than one SIB category.
11. The method of claim 10 , wherein one portion of the SIB request indicates the one or more groups within a first SIB category and another portion of the SIB request indicates the one or more groups within a second SIB category.
12. The method of claim 1 , wherein the SIB category for a first type of UE is different than the SIB category for a second type of UE.
13. A method for wireless communication by a base station, comprising:
receiving, from a user equipment (UE), a scalable dual-layer system information block (SIB) request, wherein a first layer indicates a SIB category including a subset of SIBs and a second layer indicates one or more groups within the SIB category; and
in response to the request, transmitting, to the UE, one or more requested SIBs.
14. The method of claim 13 ,
wherein the one or more groups comprise a first subgroup,
wherein the first subgroup comprises a set of SIBs common to all groups within the SIB category.
15. The method of claim 14 ,
wherein the one or more groups further comprise a second subgroup,
wherein the second subgroup comprises a set of SIBs dedicated to a respective group of the SIB category.
16. The method of claim 13 , wherein the dual-layer SIB request comprises a request for a first SIB category and a second SIB category.
17. The method of claim 16 , wherein the first SIB category comprises a service the UE uses more frequently than the second SIB category.
18. The method of claim 13 , wherein the one or more groups comprise at least one of: enhanced mobile broadband (eMBB), mission critical, massive Machine Type Communications (mMTC) services, or Internet of Everything (IoE) services.
19. The method of claim 13 , wherein the dual-layer SIB request comprises a format flag which indicates the request is for one SIB category.
20. The method of claim 19 , wherein the dual-layer SIB request further comprises a one-bit category field which indicates the SIB category.
21. The method of claim 20 , wherein the dual-layer SIB request further comprises a bitmap which indicates the one or more groups within the SIB category.
22. The method of claim 13 , wherein the dual-layer SIB request comprises a format flag which indicates the request is for more than one SIB category.
23. The method of claim 22 , wherein one portion of the SIB request indicates the one or more groups within a first SIB category and another portion of the SIB request indicates the one or more groups within a second SIB category.
24. The method of claim 13 , wherein the SIB category for a first type of UE is different than the SIB category for a second type of UE.
25. An apparatus for wireless communication by a user equipment (UE), comprising:
means for generating a scalable dual-layer system information block (SIB) request, wherein a first layer indicates a SIB category including a subset of SIBs and a second layer indicates one or more groups within the SIB category; and
means for transmitting the dual-layer SIB request to an access network.
26. The apparatus of claim 25 ,
wherein the one or more groups in a SIB category comprise a first subgroup,
wherein the first subgroup comprises a set of SIBs common to all groups within the SIB category.
27. The apparatus of claim 26 ,
wherein the one or more groups further comprise a second subgroup,
wherein the second subgroup comprises a set of SIBs dedicated to a respective group of the SIB category.
28. An apparatus for wireless communication by a base station, comprising:
means for receiving, from a user equipment (UE), a scalable dual-layer system information block (SIB) request, wherein a first layer indicates a SIB category including a subset of SIBs and a second layer indicates one or more groups within the SIB category; and
in response to the request, means for transmitting, to the UE, one or more requested SIBs.
29. The apparatus of claim 28 , wherein the dual-layer SIB request comprises a request for a first SIB category and a second SIB category.
30. The apparatus of claim 28 , wherein the dual-layer SIB request comprises a format flag which indicates the request is for more than one SIB category.