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US 11,057,178 B2Granted
Method for multiplexing control signals and reference signals in mobile communications system
AssigneeNEC Corporation
InventorsTakamichi Inoue, Yoshikazu Kakura
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Abstract
A reference signal multiplexing method for multiple mobile stations includes: grouping together control signals for the multiple mobile stations; and multiplexing reference signals corresponding to the control signals by CDM over the same bandwidth as that of grouped control signals.
Claims20
A mobile station comprising:
- a transceiver;
- and
- at least one hardware processor,
- wherein the transceiver is configured to receive, from a base station, first information of resource allocation indicating resource for a control signal and resource for a reference signal sequence;
- wherein the at least one hardware processor is configured:
- to generate a first control signal based on the first information of resource allocation;
- to Fourier transform the first control signal;
- to map the Fourier transformed first control signal to at least one of the resource for the control signal;
- to inverse Fourier transform the mapped first control signal;
- to generate a first reference signal sequence based on the first information of resource allocation, wherein the first reference signal sequence has a sequence length corresponding to an amount of all subcarriers included in a transmission bandwidth;
- to map the first reference signal sequence to at least one of the resource for the reference signal sequence within the transmission bandwidth;
- and
- to inverse Fourier transform the mapped first reference signal sequence;
- wherein the transceiver is further configured:
- to transmit the inverse Fourier transformed first control signal to the base station in a first transmission interval;
- and
- to transmit the inverse Fourier transformed first reference signal sequence to the base station in a second transmission interval which is different from the first transmission interval,
- wherein the Fourier transformed first control signal and a Fourier transformed second control generated based on second information of resource allocation signal are multiplexed within the transmission bandwidth, wherein a control signal generated using the Fourier transformed second control signal is transmitted to the base station.
15 more elements
A communication method implemented in a mobile station, the communication method comprising:
- receiving, from a base station, first information of resource allocation indicating resource for a control signal and resource for a reference signal sequence;
- generating a first control signal based on the first information of resource allocation;
- Fourier transforming the first control signal;
- mapping the Fourier transformed first control signal to at least one of the resource for the control signal;
- inverse Fourier transforming the mapped first control signal;
- generating a first reference signal sequence based on the first information of resource allocation, wherein the first reference signal sequence has a sequence length corresponding to an amount of all subcarriers included in a transmission bandwidth;
- mapping the first reference signal sequence to at least one of the resource for the reference signal sequence within the first transmission bandwidth;
- and
- inverse Fourier transforming the mapped first reference signal sequence;
- transmitting the inverse Fourier transformed first control signal to the base station in a first transmission interval;
- and
- transmitting the inverse Fourier transformed first reference signal sequence to the base station in a second transmission interval which is different from the first transmission interval,
- wherein the Fourier transformed first control signal and a Fourier transformed second control signal generated based on second information of resource allocation are multiplexed within the transmission bandwidth, wherein a control signal generated using the Fourier transformed second control signal is transmitted to the base station.
10 more elements
Dependencies are inferred from the claim text.