Reception device, transmission device, reception method, transmission method, and program related to allocation of parameters to signals

• US 10,516,511 B2
• Filed: 03/28/2016
• Issued: 12/24/2019
• Est. Priority Date: 04/07/2015
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Kimura, Ryota, Takano, Hiroaki, Uchiyama, Hiromasa, Yoshizawa, Atsushi, Morioka, Yuichi, Sawai, Ryo
• Primary Examiner(s): Daya, Tejis
• Application Number:
  US15/562,460
• Publication Number:
  US 20190109683A1
• Time in Patent Office: 1,366 Days
• CPC Class Codes: H04B 7/0426 Power distribution
• CPC Class Codes: H04L 1/0009 by adapting the channel coding H04L1/1812 takes precedence
• CPC Class Codes: H04L 1/0025 Transmission of mode-switching indication
• CPC Class Codes: H04L 1/0029 Reduction of the amount of signalling, e.g. retention of useful signalling or differential signalling power control H04W52/04
• CPC Class Codes: H04L 1/1819 with retransmission of additional or different redundancy
• CPC Class Codes: H04L 1/1861 Physical mapping arrangements for ACK signaling see also H04L5/0053
• CPC Class Codes: H04L 5/0014 Three-dimensional division time-code-space division H04B7/0413, H04B7/0697
• CPC Class Codes: H04L 5/0035 Resource allocation in a cooperative multipoint environment
• CPC Class Codes: H04L 5/0037 Inter-user or inter-terminal allocation
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/0091 Signaling for the administration of the divided path
• CPC Class Codes: H04L 5/0092 Indication of how the channel is divided
• CPC Class Codes: H04W 52/262 taking into account adaptive modulation and coding [AMC] scheme AMC per se H04L1/0001

Abstract

A transmission device that: allocates at least partially shared transmission parameters to at least a subset of a plurality of signals to which resource blocks are allocated, the resource blocks having at least partially overlapping frequency resources or time resources; and controls a transmission process of the plurality of signals based on the shared transmission parameters.

Claims

1. An electronic device comprising:

circuitry configured to

determine whether a power level of a target signal in a subset of a plurality of signals is lowest in among the subset of the plurality of signals, the target signal being multiplexed with at least one of the subset of the plurality of signals using at least partially overlapping frequency resources or time resources;

allocate a first set of shared transmission parameters to the subset of the plurality of signals, the first set of shared transmission parameters being determined based on transmission parameters of a first signal having lowest power level in the subset of the plurality of signals and the first set of shared transmission parameters being used for interference cancellation process at other electronic device which receives the first set of shared transmission parameter; and

control a transmission process of the subset of the plurality of signals based on the first set of shared transmission parameters, without transmitting specific parameters set to each signal of the subset of the plurality of signals for the interference cancellation process at the other electronic device.

2. The electronic device of claim 1, wherein the circuitry is further configured to allocate a second set of transmission parameters to the first signal and allocate the second set of shared transmission parameters to the subset of the plurality of signals other than the first signal, the second set of transmission parameters being different from the first set of shared transmission parameters.

3. The electronic device of claim 1, wherein

the circuitry is configured to allocate the first set of shared transmission parameters to a second signal having a second allocated power level so that a data rate or frequency usage efficiency of the second signal is the same as or lower than a data rate or frequency usage efficiency of the first signal having a first allocated power level that is less that a second allocated power level allocated to the second signal.

4. The electronic device of claim 3, wherein

the circuitry is configured to allocate, to the second signal, a modulation and coding scheme (MCS) that is the same as or lower than an MCS of the first signal, as at least one of the first set of shared transmission parameters.

5. The electronic device of claim 1, wherein

the circuitry is configured to control retransmission of transmission data based on an allocated power level.

6. The electronic device of claim 5, wherein

the circuitry is configured to control select a data channel having a lowest allocated power level as the data channel for retransmission.

7. The electronic device of claim 5, wherein

the circuitry is configured to select a data channel other than a data channel having a lowest allocated power level for retransmission.

8. The electronic device of claim 1, wherein

the circuitry is configured to set a redundancy version (RV) used for error correction coding or rate matching of transmission data based on an allocated power level, as at least one of the first set of shared transmission parameters.

9. The electronic device of claim 8, wherein

the circuitry is configured to use the RV at a time of first transmission or retransmission of transmission data using a data channel having a lowest allocated power level, as at least one of the first set of shared transmission parameters.

10. The electronic device of claim 8, wherein

the circuitry is configured to uses the RV at a time of first transmission of transmission data using a data channel other than a data channel having a lowest allocated power level.

11. The electronic device of claim 1, wherein

the circuitry is configured to allocate a same resource block as at least one of the first set of shared transmission parameters.

12. The electronic device of claim 11, wherein

the circuitry is configured to allocate, to a second signal having a second allocated power level, a resource block including a resource block allocated to the first signal having a first allocated power level that is less than allocated power level allocated to the second signal, as at least one of the first set of shared transmission parameters.

13. The electronic device of claim 1, wherein

the circuitry is configured to allocate the same spatial resources as at least one of the first set of shared transmission parameters.

14. The electronic device of claim 13, wherein

the circuitry is configured to allocate a precoder for the same spatial resources as at least one of the first set of shared transmission parameters.

15. The electronic device of claim 1, wherein

the circuitry is configured to use control information having a first format for the subset of the plurality of signals to which the first set of shared transmission parameters are allocated, the first format being different from a second format used for signals of the plurality of signals that are not included in the subset of the plurality of signals.

16. The electronic device of claim 15, wherein

the circuitry is configured to use control information of having the first format or the second format indicating each power level allocated to each signal of the plurality of signals.

17. The electronic device of claim 15, wherein

the first format includes an information element (IE) indicating a power layer index allocated to the subset of the plurality of signals.

18. The electronic device of claim 15, wherein

the circuitry is configured to use control information having the first format indicating that the interference cancellation process is to be performed for the subset of the plurality of signals based on the first set of shared transmission parameters.

19. The electronic device of claim 15, wherein

the first format includes a cancellation indicator information element (IE) indicating that the interference cancellation process is to be performed for the subset of the plurality of signals based on the first set of shared transmission parameters.

20. An electronic device comprising:

circuitry configured to

obtain a set of transmission parameters addressed to the electronic device including at least partially shared transmission parameters with a subset of a plurality of signals addressed to other electronic devices;

the shared transmission parameters being used for an interference cancellation process;

determine whether the signal addressed to the electronic device is multiplexed with at least one of the subset of the plurality of signals using at least partially overlapping frequency resources or time resources;

determine whether to perform the interference cancellation process on the signal addressed to the other electronic devices based on a power level of the signal addressed to the electronic device; and

control the interference cancellation process on the signals addressed to the other electronic devices, without receiving specific parameters set to each signals of the subset of the plurality of signals for the interference cancellation process.

21. The electronic device of claim 20, wherein

the circuitry is configured to perform the determining based on a format of received control information.

22. The electronic device of claim 21, wherein

the circuitry is configured to performs the interference cancellation process when information indicating that the interference cancellation process is to be performed is included in the control information.

23. The electronic device of claim 20, wherein

the circuitry is configured to perform the determining based on a power level of a data channel allocated to the electronic device.

24. The electronic device of claim 20, wherein

the circuitry is configured to perform the interference cancellation process on the signal addressed to the other electronic devices having a higher power level than a power level of a data channel allocated to the electronic device.

25. The electronic device of claim 20, wherein

the circuitry is configured to determine that transmission parameters at least partially shared with transmission parameters used in the signal addressed to the electronic device are used in the signal addressed to the other electronic device.