SYSTEM INFORMATION MODIFICATION NOTIFICATION AND DETECTION IN WIRELESS COMMUNICATIONS
Systems and methodologies are described that facilitate notifying and detecting modification of system information in a wireless communication system. A mobile device may detect an inability to receive a paging message transmitted by a base station during a first time period, receive at least one system information block (SIB) transmitted by the base station during a second time period, and determine whether to receive one or more additional SIBs transmitted by the base station in the second time period based on information obtained from the at least one SIB received. The mobile device may detect an inability to receive a paging message upon entering a cell from being out of service or upon initial device starting up. The mobile device may determine whether to receive one or more additional SIBs by comparing a value tag of the at least one SIB received to a previously stored value tag.
1 . A method for wireless communication by a user equipment (UE), comprising:
detecting an inability to receive a paging message transmitted by a base station during a first time period;
receiving at least one system information block (SIB) transmitted by the base station during a second time period, wherein a system information change boundary is between the first time period and the second time period; and
determining, based on information obtained from the at least one SIB received, whether to receive one or more additional SIBs transmitted by the base station in the second time period.
2 . The method of claim 1 , wherein the detecting comprises determining that no paging occasion is scheduled to occur during a remainder of the first time period.
3 . The method of claim 1 , wherein the detecting comprises determining that a paging message reception attempt has been unsuccessful in at least one paging occasion during the first time period.
4 . The method of claim 1 , wherein the information obtained from the at least one SIB is a value tag of the at least one SIB.
5 . The method of claim 4 , wherein the determining whether to receive one or more additional SIBs transmitted by the base station comprises comparing the value tag of the at least one SIB to a previously stored value tag.
6 . The method of claim 1 , further comprising
determining a common channel configuration using parameters of the at least one SIB; and
communicating based on the common channel configuration.
7 . The method of claim 1 , wherein the detecting is performed by the UE upon entering a cell from being out of service or upon initial device starting up.
8 . The method of claim 1 , further comprising:
receiving one or more additional SIBs from the base station in the second time period;
obtaining system information from the one or more additional SIBs; and
communicating based on the system information obtained from the one or more additional SIBs.
9 . An apparatus for wireless communication, comprising:
at least one processor configured to:
detect an inability to receive a paging message transmitted by a base station during a first time period;
receive at least one system information block (SIB) transmitted by the base station during a second time period, wherein a system information change boundary is between the first time period and the second time period; and
determine, based on information obtained from the at least one SIB received, whether to receive one or more additional SIBs transmitted by the base station in the second time period.
10 . The apparatus of claim 9 , wherein the at least one processor is configured to detect the inability to receive the paging message by determining that no paging occasion is scheduled to occur during a remainder of the first time period.
11 . The apparatus of claim 9 , wherein the at least one processor is configured to detect the inability to receive the paging message by determining that a paging message reception attempt has been unsuccessful in at least one paging occasion during the first time period.
12 . The apparatus of claim 9 , wherein the at least one processor is configured to determine whether to receive one or more additional SIBs transmitted by the base station in the second time period, based on a value tag of the at least one SIB received.
13 . The apparatus of claim 12 , wherein the at least one processor is configured to determine whether to receive one or more additional SIBs transmitted by the base station in the second time period, by comparing the value tag of the at least one SIB to a previously stored value tag.
14 . The apparatus of claim 9 , wherein the at least one processor is further configured to:
determine a common channel configuration using parameters of the at least one SIB; and
communicate based on the common channel configuration.
15 . The apparatus of claim 9 , wherein the at least one processor is further configured to:
receive one or more additional SIBs from the base station in the second time period;
obtain system information from the one or more additional SIBs; and
communicate based on the system information obtained from the one or more additional SIBs.
16 . An apparatus for wireless communication, comprising:
means for detecting an inability to receive a paging message transmitted by a base station during a first time period;
means for receiving at least one system information block (SIB) transmitted by the base station during a second time period, wherein a system information change boundary is between the first time period and the second time period; and
means for determining, based on information obtained from the at least one SIB received, whether to receive one or more additional SIBs transmitted by the base station in the second time period.
17 . The apparatus of claim 16 , further comprising:
means for determining a common channel configuration using parameters of the at least one SIB; and
means for communicating based on the common channel configuration.
18 . The apparatus of claim 16 , further comprising:
means for receiving one or more additional SIBs from the base station in the second time period;
means for obtaining system information from the one or more additional SIBs; and
means for communicating based on the system information obtained from the one or more additional SIBs.
19 . A non-transitory computer-readable medium storing instructions that, when executed by a processor, cause the processor to perform operations to:
detect an inability to receive a paging message transmitted by a base station during a first time period;
receive at least one system information block (SIB) transmitted by the base station during a second time period, wherein a system information change boundary is between the first time period and the second time period; and
determine, based on information obtained from the at least one SIB received, whether to receive one or more additional SIBs transmitted by the base station in the second time period.
20 . The non-transitory computer-readable medium storing instructions that, when executed by a processor, cause the processor to further perform operations to:
determine a common channel configuration using parameters of the at least one SIB; and
communicate based on the common channel configuration.
21 . The non-transitory computer-readable medium storing instructions that, when executed by a processor, cause the processor to further perform operations to:
receive one or more additional SIBs from the base station in the second time period;
obtain system information from the one or more additional SIBs; and
communicate based on the system information obtained from the one or more additional SIBs.