Abstract
To suppress concentration of channel quality information requests and reports in a case of discontinuously transmitting reference signals at specific resources in a time domain and thereby preventing degradation in throughput. A transmission apparatus transmits an instruction of CSI request distributed for each reception apparatus in a subframe concurrently with or earlier than a reference signal CSI-RS to each of reception apparatuses. Each of the reception apparatuses detects the CSI request from the transmission apparatus and calculates CSI from a channel estimation value of CSI-RS received thereafter. Then the reception apparatus identifies CSI report subframe of the own apparatus from CSI report interval information of a given time interval notified in advance the subframe in which the CSI request is detected and transmission timing of CSI-RS and transmits a feedback signal including CSI report value by using PUSCH at the timing of the CSI report subframe.
Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
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Declaration Date | Declaration Reference | Declaring Company | Specification Information | ||||||
4G | 06/08/2013 | ISLD-201309-038 | PANASONIC CORP |
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No | Family Member | |||
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4G | 14/12/2020 | ISLD-202012-017 | SUN PATENT TRUST |
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Specification Information
Specification Information
Technologies
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Technologies
Product
Use Cases
Services
Claim
1. An integrated circuit to control a process, the process comprising:
transmitting, to a terminal, a request signal for requesting a transmission of a signal; and
receiving the signal, which is transmitted from the terminal in a subframe which is configured to be specific for the terminal among a plurality of terminals and which is one among a plurality of subframes, the plurality of subframes being common to the plurality of terminals and being configured using a value common to the plurality of terminals,
wherein the receiving includes receiving of the signal, which is transmitted with a period that is specific for the terminal among the plurality of terminals, the period being from a detection of the request signal to a transmission of the signal at the terminal.
2. The integrated circuit according to claim 1, comprising:
circuitry which, in operation, controls the process;
at least one input coupled to the circuitry, wherein the at least one input, in operation, inputs data; and
at least one output coupled to the circuitry, wherein the at least one output, in operation, outputs data.
3. The integrated circuit according to claim 1, wherein the receiving includes receiving of the signal, which is transmitted at a time that is specific for the terminal among the plurality of terminals.
4. The integrated circuit according to claim 1, wherein the receiving includes receiving of the signal transmitted in the subframe after a defined number of subframes or more from a detection of the request signal at the terminal.
5. The integrated circuit according to claim 4, wherein the defined number of subframes is configured to be common for the plurality of terminals.
6. The integrated circuit according to claim 1, wherein the transmitting includes transmitting of the request signal at a time that is specific for the terminal among the plurality of terminals.
7. The integrated circuit according to claim 1, wherein the transmitting includes transmitting of the request signal on a control channel.
8. The integrated circuit according to claim 1, wherein the transmitting includes transmitting, to the terminal, of a first information indicating the plurality of subframes configured using the value that is common to the plurality of terminals and a second information indicating the subframe configured to be specific for the terminal.
9. The integrated circuit according to claim 1, wherein the subframes configured using the value that is common to the plurality of terminals and the subframe configured to be specific for the terminal are configured using a period represented by a number of subframes.
10. The integrated circuit according to claim 1, wherein the subframes configured using the value that is common to the plurality of terminals are subframes configured to be specific for a cell.
11. The integrated circuit according to claim 1, wherein the signal is a sounding reference signal.
12. The integrated circuit according to claim 1, wherein the signal is a signal indicating channel quality.
13. The integrated circuit according to claim 11, wherein the transmitting includes transmitting, to the terminal, of a reference signal with a period, which is represented by a number of subframes, and said reception section receives the signal indicating channel quality, which is computed based on the reference signal at the terminal.
14. The integrated circuit according to claim 13, wherein the reference signal is used for a communication system compatible with 8 antennas.
15. The integrated circuit according to claim 13, wherein the reference signal is a CSI reference signal.
16. The integrated circuit according to claim 2, wherein the at least one output and the at least one input, in operation, are coupled to an antenna.
17. An integrated circuit comprising circuitry, which, in operation:
controls transmission, to a terminal, of a request signal for requesting a transmission of a signal; and
controls reception of the signal, which is transmitted from the terminal in a subframe which is configured to be specific for the terminal among a plurality of terminals and which is one among a plurality of subframes, the plurality of subframes being common to the plurality of terminals and being configured using a value common to the plurality of terminals,
wherein the receiving includes receiving of the signal, which is transmitted with a period that is specific for the terminal among the plurality of terminals, the period being from a detection of the request signal to a transmission of the signal at the terminal.
18. The integrated circuit according to claim 17, comprising:
at least one input coupled to the circuitry, wherein the at least one input, in operation, inputs data; and
at least one output coupled to the circuitry, wherein the at least one output, in operation, outputs data.
19. The integrated circuit according to claim 18, wherein the at least one output and the at least one input, in operation, are coupled to an antenna.
20. A communication device comprising:
a transmitter, which, in operation, transmits, to a terminal, of a request signal for requesting a transmission of a signal; and
a receiver, which, in operation, receives the signal, which is transmitted from the terminal in a subframe which is configured to be specific for the terminal among a plurality of terminals and which is one among a plurality of subframes, the plurality of subframes being common to the plurality of terminals and being configured using a value common to the plurality of terminals,
wherein the receiving includes receiving of the signal, which is transmitted with a period that is specific for the terminal among the plurality of terminals, the period being from a detection of the request signal to a transmission of the signal at the terminal.
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The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)
The information in grey was provided by the patent holder
The information in purple was extracted from the FrandAvenue
Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.
Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.
Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.
Family member:related patents or applications that share a common priority or original filing.