Cell search procedure and initial BWP configuration for reduced capability UE device
A system and method for accommodating reduced capability user equipment in a mobile network. The method may include monitoring, by a bandwidth-limited User Equipment (UE), a subset of a core resource set (CORESET), the use of a special synchronization signal for bandwidth-limited UEs, or the use of bandwidth part (BWP) switching.
1. A method, comprising:
acquiring, by a bandwidth-limited user equipment (UE) having a bandwidth capability, a signal from a network, the signal comprising:
a System Information Block #1 (SIB1) defining a legacy initial bandwidth part (BWP); and
a bandwidth-limited Secondary Synchronization Signal (BL-SSS) indicating support, by the network, for the bandwidth-limited UE;
sending, by the bandwidth-limited UE, a first message to the network indicating the bandwidth-limited UE's choice of an initial BWP;
receiving, by the bandwidth-limited UE, a second message from the network indicating an initial BWP switch;
in response to the initial BWP switching indicated in the second message, sending, by the bandwidth-limited UE, a third message to the network in a first initial BWP that is different from the legacy initial BWP; and
receiving, by the bandwidth-limited UE, a fourth message from the network in a second initial BWP that is different from the legacy initial BWP.
2. The method of claim 1 , in wherein the second message comprises a first BWP identifier for identifying the first initial BWP, and
wherein the sending of the third message comprises sending the third message in the first initial BWP.
3. The method of claim 1 , wherein the receiving of the fourth message comprises receiving the fourth message in the second initial BWP.
4. The method of claim 3 , wherein the second initial BWP is different from the first initial BWP.
5. The method of claim 3 , wherein the second message comprises a second BWP identifier for identifying the second initial BWP.
6. The method of claim 3 , further comprising receiving, by the bandwidth-limited UE, in the SIB1 or in an extended SIB1 (eSIB1), a second BWP identifier for identifying the second initial BWP.
7. The method of claim 1 , further comprising receiving, by the bandwidth-limited UE, in the SIB1 or in an extended SIB1 (eSIB1), a list of available initial BWPs including the first initial BWP,
wherein the sending of the first message comprises sending the first message in the first initial BWP.
8. The method of claim 7 , further comprising selecting, by the bandwidth-limited UE, the first initial BWP from the list of the available initial BWPs.
9. The method of claim 8 , wherein the first message comprises a notification of the bandwidth-limited UE's selection of the first initial BWP.