Method and apparatus for information transmission
The present disclosure provides a method and an apparatus for information transmission. The method includes: transmitting information or a channel over one or more of available narrow bands. The available narrow bands include available uplink narrow bands and/or available downlink narrow bands and the available narrow bands are determined based on information including at least one of: a system bandwidth, a cell identity, a position of an anchor carrier, information indicated by a PSS, information indicated by an SSS, information indicated by a MIB and information indicated by a SIB. The information or channel transmitted over the one or more narrow bands includes at least one of: a downlink control channel, a PDSCH, an RAR, a paging message, a SIB, a MIB, a PRACH, a PUSCH, and a PUCCH. The above solution solves the problem regarding how to obtain multiple narrow bands/carriers in NB-IoT and provides a scheme for determining available narrow bands.
1. A method performed by a wireless communication device, comprising:
receiving a message on a Physical Broadcast Channel (PBCH) from a wireless communication node, the message comprising information of a frequency position of an anchor carrier that is configured to carry a synchronization signal, an indication of an operation mode assigned to the wireless communication device and an indicator of same-Physical Cell Identity, (PCI); and
determining, based on the message, the operation mode and the frequency position of the anchor carrier,
wherein the frequency position of the anchor carrier is indicated by a Physical Resource Block index that corresponds to an offset from a center frequency,
wherein the operation mode indication indicates inband deployment,
wherein the indicator of same-PCI indicates the physical identity of the cell where the wireless communication device is located is the same as the physical identity of a cell corresponding to a wireless system of the inband deployment, and
wherein the frequency position of the anchor carrier, the operation mode and the indicator of same-PCI are jointly indicated by the operation mode indication.
2. A method performed by a wireless communication node, comprising:
transmitting a message on a Physical Broadcast Channel (PBCH) to a wireless communication device, the message comprising information of a frequency position of an anchor carrier that is configured to carry a synchronization signal, an indication of an operation mode assigned to the wireless communication device and an indicator of same-Physical Cell Identity (PCI),
wherein the frequency position of the anchor carrier is indicated by a Physical Resource Block index that corresponds to an offset from a center frequency,
wherein the operation mode indication indicates inband deployment,
wherein the indicator of same-PCI indicates the physical identity of the cell where the wireless communication device is located is the same as the physical identity of a cell corresponding to a wireless system of the inband deployment, and
wherein the frequency position of the anchor carrier, the operation mode and the indicator of same-PCI are jointly indicated by the operation mode indication.
3. A non-transitory computer-readable medium storing computer-executable instructions that when executed carry out the method of any one of claims 1 or 2 .
4. A wireless communication device, comprising:
a receiver configured to receive a message on a Physical Broadcast Channel (PBCH) from a wireless communication node, the message comprising information of a frequency position of an anchor carrier that is configured to carry a synchronization signal, an indication of an operation mode assigned to the wireless communication device and an indicator of same-Physical Cell Identity (PCI); and
at least one processor configured to determine the operation mode based on the message;
wherein the at least one processor is further configured to determine the frequency position of the anchor carrier based on a Physical Resource Block index that corresponds to an offset from a center frequency,
wherein the operation mode indication indicates inband deployment,
wherein the indicator of same-PCI indicates the physical identity of the cell where the wireless communication device is located is the same as the physical identity of a cell corresponding to a wireless system of the inband deployment, and
wherein the frequency position of the anchor carrier, the operation mode and the indicator of same-PCI are jointly indicated by the operation mode indication.
5. A wireless communication node, comprising:
a transmitter configured to transmit a message on a Physical Broadcast Channel (PBCH) to a wireless communication device, the message comprising information of a frequency position of an anchor carrier that is configured to carry a synchronization signal, an indication of an operation mode assigned to the wireless communication device and an indicator of same-Physical Cell Identity (PCI);
wherein the frequency position of the anchor carrier is indicated by a Physical Resource Block index that corresponds to an offset from a center frequency,
wherein the operation mode indication indicates inband deployment,
wherein the indicator of same-PCI indicates the physical identity of the cell where the wireless communication device is located is the same as the physical identity of a cell corresponding to a wireless system of the inband deployment, and
wherein the frequency position of the anchor carrier, the operation mode and the indicator of same-PCI are jointly indicated by the operation mode indication.