Method and base station for configuring non-anchor physical resource block, and method and user equipment for determining location of non-anchor physical resource block
View Patent ↗The present invention provides a method for configuring a non-anchor PRB executed at a base station, comprising: configuring a non-anchor PRB for a user equipment (UE) for unicast data transmission, wherein the non-anchor PRB is selected from a set of Long Term Evolution (LTE) in-band PRBs or a set of PRBs in the LTE in-band PRBs capable of being used as anchor PRBs; and sending to the UE configuration information of the non-anchor PRB. The present invention further provides a base station for executing the method, a method for determining a location of a non-anchor physical resource block (PRB) executed at a UE, and a UE for executing the method.
1. A user equipment (UE) comprising:
receiving circuitry configured to receive indication information indicating whether a non-anchor physical resource block (PRB) is in in-band of an LTE carrier or in a guard band of the LTE carrier, and to receive, in a case that (a) an anchor PRB is in the guard band of the LTE carrier, and (b) the indication information indicates that the non-anchor PRB is in in-band of the LTE carrier, a non-anchor PRB configuration which indicates that the non-anchor PRB is in in-band of the LTE carrier and indicates a first offset from a middle PRB in a set of LTE in-band PRBs; and
determination circuitry configured to determine, based on the non-anchor PRB configuration, a location of the non-anchor PRB in the set of LTE in-band PRBs, wherein
the receiving circuitry is configured to receive an anchor PRB configuration, in a case that the anchor PRB is in in-band of the LTE carrier,
the anchor PRB configuration indicates that the anchor PRB is in in-band of the LTE carrier and indicates a second offset from the middle PRB in the set of LTE in-band PRBs,
the first offset is an integer number selected from a first range,
the second offset is an integer number selected from a second range different from the first range, and
the non-anchor PRB is different from the anchor PRB in that:
the non-anchor PRB is a PRB used by the UE for receiving a unicast transmission related to NarrowBand IOT (NB-IoT), but not used by the UE for receiving a primary synchronization signal (PSS), a secondary synchronization signal (SSS), a master system information block (MIB), and a system information block (SIB), each of which is related to the NB-IoT; and
the anchor PRB is a PRB used by the UE for receiving the PSS, the SSS, the MIB, and/or the SIB.
2. The UE of claim 1 , wherein
the receiving circuitry receives information indicating whether a physical cell identifier (PCI) which is same as the PCI of the LTE carrier is used for a cell where the anchor PRB locates.
3. The UE of claim 1 , wherein
the first range is a range of −55 to 54.
4. A method performed by a user equipment (UE) comprising:
receiving indication information indicating whether a non-anchor physical resource block (PRB) is in in-band of an LTE carrier or in a guard band of the LTE carrier,
receiving, in a case that (a) an anchor PRB is in the guard band of the LTE carrier, and (b) the indication information indicates that the non-anchor PRB is in in-band of the LTE carrier, a non-anchor PRB configuration which indicates that the non-anchor PRB is in in-band of the LTE carrier and indicates a first offset from a middle PRB in a set of LTE in-band PRBs;
determining, based on the non-anchor PRB configuration, a location of the non-anchor PRB in the set of LTE in-band PRBs; and
receiving an anchor PRB configuration in a case that the anchor PRB is in in-band of the LTE carrier, the anchor PRB configuration being a configuration which indicates that the anchor PRB is in in-band of the LTE carrier and indicates a second offset from the middle PRB in the set of LTE in-band PRBs,
wherein
the first offset is an integer number selected from a first range,
the second offset is an integer number selected from a second range different from the first range, and
the non-anchor PRB is different from the anchor PRB in that:
the non-anchor PRB is a PRB used by the UE for receiving a unicast transmission related to NarrowBand IOT (NB-IoT) but not used by the UE for receiving a primary synchronization signal (PSS), a secondary synchronization signal (SSS), a master system information block (MIB), and a system information block (SIB), each of which is related to the NB-IoT; and
the anchor PRB is a PRB used by the UE for receiving the PSS, the SSS, the MIB, and/or the SIB.
5. A base station comprising:
generating circuitry configured to generate indication information indicating whether a non-anchor physical resource block (PRB) is in in-band of an LTE carrier or in a guard band of the LTE carrier; and
transmitting circuitry configured to transmit the indication information to a user equipment (UE), wherein
in a case that (a) an anchor PRB is in the guard band of the LTE carrier, and (b) the indication information indicates that the non-anchor PRB is in in-band of the LTE carrier,
the generating circuitry is configured to generate a non-anchor PRB configuration which indicates that the non-anchor PRB is in in-band of the LTE carrier and indicates a first offset from a middle PRB in a set of LTE in-band PRBs, and
the transmitting circuitry is configured to transmit the non-anchor PRB configuration to the UE,
in a case that the anchor PRB is in in-band of the LTE carrier,
the generating circuitry is configured to generate an anchor PRB configuration which indicates that the anchor PRB is in in-band of the LTE carrier and indicates a second offset from the middle PRB in the set of LTE in-band PRBs, and
the transmitting circuitry is configured to transmit the anchor PRB configuration to the UE,
the first offset is an integer number selected from a first range,
the second offset is an integer number selected from a second range different from the first range, and
the non-anchor PRB is different from the anchor PRB in that:
the non-anchor PRB is a PRB used by the UE for receiving a unicast transmission related to NarrowBand IOT (NB-IoT) but not used by the UE for receiving a primary synchronization signal (PSS), a secondary synchronization signal (SSS), a master system information block (MIB), and a system information block (SIB), each of which is related to the NB-IoT; and
the anchor PRB is a PRB used by the UE for receiving the PSS, the SSS, the MIB, and/or the SIB.
6. A method performed by a base station comprising:
generating indication information indicating whether a non-anchor physical resource block (PRB) is in in-band of an LTE carrier or in a guard band of the LTE carrier;
transmitting the indication information to a user equipment (UE);
in a case that (a) an anchor PRB is in the guard band of the LTE carrier, and (b) the indication information indicates that the non-anchor PRB is in in-band of the LTE carrier,
generating a non-anchor PRB configuration which indicates that the non-anchor PRB is in in-band of the LTE carrier and indicates a first offset from a middle PRB in a set of LTE in-band PRBs, and
transmitting the non-anchor PRB configuration to the UE; and
in a case that the anchor PRB is in in-band of the LTE carrier,
generating an anchor PRB configuration which indicates that the anchor PRB is in in-band of the LTE carrier and indicates a second offset from the middle PRB in the set of LTE in-band PRBs, and
transmitting the anchor PRB configuration to the UE, wherein
the first offset is an integer number selected from a first range,
the second offset is an integer number selected from a second range different from the first range, and
the non-anchor PRB is different from the anchor PRB in that:
the non-anchor PRB is a PRB used by the UE for receiving a unicast transmission related to NarrowBand IOT (NB-IoT) but not used by the UE for receiving a primary synchronization signal (PSS), a secondary synchronization signal (SSS), a master system information block (MIB), and a system information block (SIB), each of which is related to the NB-IoT; and
the anchor PRB is a PRB used by the UE for receiving the PSS, the SSS, the MIB, and/or the SIB.