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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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:
detecting a request signal for requesting a transmission of a signal; and
transmitting the signal, upon detection of the request signal, in a subframe which is configured to be specific for a 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 transmitting includes transmission of the signal with a period that is specific for the terminal among the plurality of terminals, the period being from the detection of the request signal to a transmission of the signal.
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, receives the request signal to be detected; and
at least one output coupled to the circuitry, wherein the at least one output, in operation, outputs the signal to be transmitted.
3. The integrated circuit according to claim 2, wherein the transmitting includes transmission of the signal at a time that is specific for the terminal among the plurality of terminals.
4. The integrated circuit according to claim 2, wherein the transmitting includes transmission of the signal in the subframe after a defined number of subframes or more from the detection of the request signal.
5. The integrated circuit according to claim 2, wherein the defined number of subframes is configured to be common for the plurality of terminals.
6. The integrated circuit according to claim 2, wherein the detecting includes detection of the request signal, which is transmitted at a time that is specific for the terminal among the plurality of terminals.
7. The integrated circuit according to claim 2, wherein the detecting includes detection of the request signal, which is transmitted on a control channel.
8. The integrated circuit according to claim 2, the process further comprising receiving first information indicating the plurality subframes configured using the value that is common to the plurality of terminals and second information indicating the subframe configured to be specific for the terminal.
9. The integrated circuit according to claim 2, 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 2, 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 2, wherein the signal is a sounding reference signal.
12. The integrated circuit according to claim 2, wherein the signal is a signal indicating channel quality.
13. The integrated circuit according to claim 12, the process further comprising receiving a reference signal with a period, which is represented by a number of subframes, wherein the transmitting includes transmission of the signal indicating channel quality, which is computed based on the reference signal.
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 detection of a request signal for requesting a transmission of a signal; and
controls transmission of the signal, upon detection of the request signal, in a subframe which is configured to be specific for a 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 transmission includes transmission of the signal with a period that is specific for the terminal among the plurality of terminals, the period being from the detection of the request signal to a transmission of the signal.
18. The integrated circuit according to claim 17, further comprising:
at least one input coupled to the circuitry, wherein the at least one input, in operation, receives the request signal to be detected; and
at least one output coupled to the circuitry, wherein the at least one output, in operation, outputs the signal to be transmitted.
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 terminal comprising:
circuitry, which, in operation, detects a request signal for requesting a transmission of a signal; and
a transmitter, which, in operation, transmits the signal, upon detection of the request signal, in a subframe which is configured to be specific for a 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 transmitter, in operation, transmits the signal with a period that is specific for the terminal among the plurality of terminals, the period being from the detection of the request signal to a transmission of the signal.
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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.