Methods and apparatus for accessing dormant cells
In an aspect of the disclosure, a method, a computer program product, and an apparatus are provided. The apparatus may be a first base station. The first base station transmits an information block to a UE while the UE is camped on a second base station. The information block includes an indication of a random access configuration for performing at least a part of a random access procedure. The first station performs, with the UE, at least a part of a random access procedure based on the indicated random access configuration.
1. A method of wireless communication of a first base station, comprising:
transmitting an information block to a user equipment (UE) while the UE is camped on a second base station, the information block comprising an indication of a random access configuration for performing at least a part of a random access procedure;
performing, with the UE, at least a part of a random access procedure based on the indicated random access configuration; and
transmitting system information during the random access procedure in a random access response to the UE, the system information indicating a second random access configuration for performing a remaining part of the random access procedure.
2. The method of claim 1 , wherein the information block comprises a cell identifier, the random access procedure being indicated by the cell identifier.
3. The method of claim 1 , wherein the information block is a master information block (MIB).
4. The method of claim 1 , wherein the information block is a system information block (SIB).
5. The method of claim 4 , wherein the information block is a SIB 1 (SIB1).
6. The method of claim 4 , wherein the information block is a subset of a SIB 1 (SIB1).
7. The method of claim 1 , further comprising receiving a layer 2 (L2)/layer 3 (L3) (L2/L3) message from the UE based on the system information sent in the random access response.
8. The method of claim 1 , further comprising receiving, from a second base station, a configuration for subframes to utilize in data transmissions with the UE.
9. An apparatus for wireless communication, the apparatus being a first base station, comprising:
means for transmitting an information block to a user equipment (UE) while the UE is camped on a second base station, the information block comprising an indication of a random access configuration for performing at least a part of a random access procedure;
means for performing, with the UE, at least a part of a random access procedure based on the indicated random access configuration; and
means for transmitting system information during the random access procedure in a random access response to the UE, the system information indicating a second random access configuration for performing a remaining part of the random access procedure.
10. The apparatus of claim 9 , wherein the information block comprises a cell identifier, the random access procedure being indicated by the cell identifier.
11. The apparatus of claim 9 , wherein the information block is a master information block (MIB).
12. The apparatus of claim 9 , wherein the information block is a system information block (SIB).
13. The apparatus of claim 12 , wherein the information block is a SIB 1 (SIB1).
14. The apparatus of claim 12 , wherein the information block is a subset of a SIB 1 (SIB1).
15. The apparatus of claim 9 , further comprising means for receiving a layer 2 (L2)/layer 3 (L3) (L2/L3) message from the UE based on the system information sent in the random access response.
16. The apparatus of claim 9 , further comprising means for receiving, from a second base station, a configuration for subframes to utilize in data transmissions with the UE.
17. An apparatus for wireless communication, the apparatus being a first base station, comprising:
a memory; and
at least one processor coupled to the memory and configured to:
transmit an information block to a user equipment (UE) while the UE is camped on a second base station, the information block comprising an indication of a random access configuration for performing at least a part of a random access procedure;
perform, with the UE, at least a part of a random access procedure based on the indicated random access configuration; and
transmit system information during the random access procedure in a random access response to the UE, the system information indicating a second random access configuration for performing a remaining part of the random access procedure.
18. The apparatus of claim 17 , wherein the information block comprises a cell identifier, the random access procedure being indicated by the cell identifier.
19. The apparatus of claim 17 , wherein the information block is a master information block (MIB).
20. The apparatus of claim 17 , wherein the information block is a system information block (SIB).
21. The apparatus of claim 20 , wherein the information block is a SIB 1 (SIB1) or a subset of the SIB 1 (SIB1).
22. The apparatus of claim 17 , wherein the at least one processor is further configured to receive a layer 2 (L2)/layer 3 (L3) (L2/L3) message from the UE based on the system information sent in the random access response.
23. The apparatus of claim 17 , wherein the at least one processor is further configured to receive, from a second base station, a configuration for subframes to utilize in data transmissions with the UE.
24. A non-transitory computer-readable medium for a first base station and storing computer executable code for wireless communication, comprising code for:
transmitting an information block to a user equipment (UE) while the UE is camped on a second base station, the information block comprising an indication of a random access configuration for performing at least a part of a random access procedure;
performing, with the UE, at least a part of a random access procedure based on the indicated random access configuration; and
transmitting system information during the random access procedure in a random access response to the UE, the system information indicating a second random access configuration for performing a remaining part of the random access procedure.