Machine-to-machine (m2m) terminal, base station, method, and computer readable medium

Abstract

A Machine-to-machine (M2M) terminal (11) is configured to receive a first notification from a base station (13) and to transmit a second notification to the base station (13) when establishing a radio connection with the base station (13) after reception of the first notification or while performing a procedure for establishing a bearer between the M2M terminal (11) and a core network (14) after reception of the first notification. The first notification indicates whether specific coverage enhancement processing is supported in a cell (130) of the base station (13) in which the M2M terminal (11) is located. The second notification indicates that the specific coverage enhancement processing is required or being executed by the M2M terminal (11). It is thus possible to provide an improvement to allow the M2M terminal to determine necessity of special coverage enhancement processing for M2M terminals.

1 - 35 . (canceled) 
     
     
         36 . A base station comprising:
 a memory; and   at least one hardware processor coupled to the memory,   wherein the at least one hardware processor is configured to transmit system information,   wherein the system information is configured to include a Reference Signal Received Power (RSRP) threshold value, and   wherein the RSRP threshold value is configured to cause a user equipment (UE):
 to determine that an enhanced coverage is necessary based on both (i) a comparison of the RSRP threshold value with an RSRP value measured by the UE, and (ii) whether or not the UE is capable of the enhanced coverage, and 
 to transmit preambles with repetitions based on the enhanced coverage. 
   
     
     
         37 . The base station according to  claim 36 ,
 wherein the at least one hardware processor is configured to transmit a random access response with repetitions based on the enhanced coverage.   
     
     
         38 . The base station according to  claim 36 ,
 wherein the system information is configured to include information for preamble transmission.   
     
     
         39 . A method of a base station, the method comprising:
 transmitting system information,   wherein the system information is configured to include a Reference Signal Received Power (RSRP) threshold value, and   wherein t the RSRP threshold value is configured to cause a user equipment (UE):
 to determine that an enhanced coverage is necessary based on both (i) a comparison of the RSRP threshold value with an RSRP value measured by the UE, and (ii) whether or not the UE is capable of the enhanced coverage, and 
 to transmit preambles with repetitions based on the enhanced coverage. 
   
     
     
         40 . The method according to  claim 39 , further comprising
 transmitting a random access response with repetitions based on the enhanced coverage.   
     
     
         41 . The method according to  claim 39 ,
 wherein the system information is configured to include information for preamble transmission.   
     
     
         42 . A user equipment (UE) comprising:
 a memory; and   at least one hardware processor coupled to the memory,   wherein the at least one hardware processor is configured to receive system information,   wherein the system information is configured to include information for preamble transmission and a Reference Signal Received Power (RSRP) threshold value, and   wherein the RSRP threshold value is configured to cause the UE:
 to determine that an enhanced coverage is necessary based on both (i) a comparison of the RSRP threshold value with an RSRP value measured by the UE, and (ii) whether or not the UE is capable of the enhanced coverage, and 
 to transmit preambles with repetitions based on the enhanced coverage. 
   
     
     
         43 . The UE according to  claim 42 ,
 wherein the at least one hardware processor is configured to receive a random access response with repetitions based on the enhanced coverage.   
     
     
         44 . The UE according to  claim 42 ,
 wherein the system information is configured to include information for preamble transmission.   
     
     
         45 . A method of a user equipment (UE), the method comprising:
 receiving system information,   wherein the system information is configured to include information for preamble transmission and a Reference Signal Received Power (RSRP) threshold value, and   wherein the RSRP threshold value is configured to cause the UE:
 to determine that an enhanced coverage is necessary based on both (i) a comparison of the RSRP threshold value with an RSRP value measured by the UE, and (ii) whether or not the UE is capable of the enhanced coverage, and 
 to transmit preambles with repetitions based on the enhanced coverage. 
   
     
     
         46 . The method according to  claim 45 , further comprising
 receiving a random access response with repetitions based on the enhanced coverage.   
     
     
         47 . The method according to  claim 45 ,
 wherein the system information is configured to include information for preamble transmission.