Inter-frequency inter-public land mobile network (PLMN) discovery
摘要
說明書
In one aspect, if different operators serve different carriers, then, by default the inter-frequency discovery configuration is not available. However, the inter-frequency discovery configuration information may be exchanged between operators if it is expected to be shared on the serving carrier. It should be noted that operators can exchange only partial information. For example, in one aspect, the transmission timing of the SIB19 can be directly indicated so that UE can detect the transmission timing, when the UE performs switching, without processing the SIB1 and waiting for the SIB19.
In cases for both the same or different operator, acquisition assistance signaling can be performed for efficient inter-frequency discovery. In one aspect, small-size (e.g., 10 or 10 times smaller than a complete SIB19) assistance information signaling can be placed in a serving cell's SIB19. That is, the assistance information can be much smaller, such as, for example, 10 or 100 times) as compared to a full or complete SIB19 of another PLMN/carrier.
For example, the small-size assistance information signaling can be placed in a serving cell's SIB19 because complete discovery resource configuration information, carried in a SIB19, can take many bytes. In one aspect, the following options may be used to provide assistance for inter-frequency discovery.
Option 1
In one aspect, the present technology provides inter-frequency system scheduling information. For example, the inter-frequency system scheduling information can include bandwidth, power, system information radio network temporary identifier (SI-RNTI), SIB1 and SIB19 scheduling info. Option 1 allows inter-frequency discovering UEs to skip some processing steps of the non-serving cells and directly acquire SIB19 using this scheduling information.
Option 2
