Redundancy version indication in fifth generation (5G) or other next generation communication systems

• US 10,536,879 B2
• Filed: 02/16/2018
• Issued: 01/14/2020
• Est. Priority Date: 02/16/2018
• Status: Active Grant

• Current Assignee: AT&T Intellectual Property I LP (AT&T, Inc.)
• Original Assignee: AT&T Intellectual Property I LP (AT&T, Inc.)
• Inventors: Nammi, SaiRamesh, Bendlin, Ralf, Ghosh, Arunabha
• Primary Examiner(s): Chan, Sai Ming
• Application Number:
  US15/932,240
• Publication Number:
  US 20190261217A1
• Time in Patent Office: 697 Days
• Field of Search: 370216
• CPC Class Codes: H03M 13/6306 Error control coding in combination with Automatic Repeat reQuest [ARQ] and diversity transmission, e.g. coding schemes for the multiple transmission of the same information or the transmission of incremental redundancy H03M13/3761, H03M13/3769 and H03M13/635 take precedence
• CPC Class Codes: H04L 1/0013 Rate matching, e.g. puncturing or repetition of code symbols
• CPC Class Codes: H04L 1/0023 characterised by the signalling
• CPC Class Codes: H04L 1/0057 Block codes H04L1/0061, H04L1/0064 take precedence
• CPC Class Codes: H04L 1/0072 Error control for data other than payload data, e.g. control data
• CPC Class Codes: H04L 1/18 Automatic repetition systems, e.g. Van Duuren systems
• CPC Class Codes: H04L 1/1812 Hybrid protocols; Hybrid automatic repeat request [HARQ]
• CPC Class Codes: H04L 1/1896 ARQ related signaling
• CPC Class Codes: H04W 28/04 Error control
• CPC Class Codes: H04W 28/06 Optimizing the usage of the radio link, e.g. header compression, information sizing , discarding information system modifying transmission characteristic according to link quality by modifying frame length H04L1/0007; dynamic adaptation of the packet size for flow control or congestion control H04L47/365

Abstract

An adaptive downlink control channel structure is utilized for control channel transmission for 5G and other next generation wireless systems. Moreover, the adaptive downlink control channel structure can utilize a reduced length/size to decrease signaling overhead for each transport block. In an aspect, a first downlink control channel structure for a data transmission can be utilized to implicitly indicate redundancy version (RV) and a second downlink control channel structure for a subsequent data transmission can be utilized to explicitly indicate the RV. In another aspect, the RV can be indicative via an adaptive bit load. Further, in yet another aspect, the RV can be indicated based on a joint encoding of RV and new data indicator (NDI) information.

Claims

1. A system, comprising:

a processor; and

a memory that stores executable instructions that, when executed by the processor, facilitate performance of operations, comprising;

determining a first data structure for first control information associated with a transmission of data from a transmitter device to a receiver device, wherein the first data structure comprises a two-bit field that jointly indicates a redundancy version and a new data indicator for the transmission, and that conveys a first redundancy version and that a first in time transmission of the data is scheduled for the transmission; and

determining a second data structure for second control information associated with a retransmission of the data from the transmitter device to the receiver device, wherein the second data structure comprises the two-bit field that jointly indicates the redundancy version and the new data indicator for the retransmission, and that conveys a second redundancy version and that the data is scheduled for the retransmission.

2. The system of claim 1, wherein the second data structure comprises the two-bit field comprising a value that indicates that the second redundancy version equals redundancy version one.

3. The system of claim 1, wherein the first data structure comprises the two-bit field comprising a value that indicates that the first redundancy version equals redundancy version zero.

4. The system of claim 1, wherein the first data structure further comprises a bit that indicates that the transmission is a chase-combining hybrid automatic repeat request.

5. The system of claim 1, wherein the second data structure further comprises a bit that indicates that the retransmission is an incremental redundancy hybrid automatic repeat request.

6. system of claim 1, wherein the second data structure comprises the two-bit field comprising a first value that indicates that second redundancy version equals redundancy version two or a second value that indicates that second redundancy version equals redundancy version three.

7. The system of claim 1, wherein the operations further comprise:

directing, from the transmitter device to the receiver device, the first control information that adheres to the first data structure.

8. The system of claim 1, wherein the transmitter device is an access point device of a communication network, and wherein the receiver device is a user equipment coupled to the access point device.

9. The system of claim 1, wherein the receiver device is an access point device of a communication network, and wherein the transmitter device is a user equipment coupled to the access point device.

10. A method, comprising:

determining, by a system comprising a processor, an adaptable data structure for control information associated with a transmission of a transport block from a transmitter device to a receiver device;

wherein the adaptable data structure comprises a two-bit field that jointly indicates a redundancy version and a new data indicator utilized for the transmission, and

directing, by the system, the control information from the transmitter device to the receiver device, wherein the control information conforms to the adaptable data structure.

11. The method of claim 10, wherein the two-bit field comprises a first value that indicates that the redundancy version equals redundancy version zero and that a first in time transmission of the transport block is scheduled for the transmission.

12. The method of claim 10, wherein the two-bit field comprises a second value that indicates that the redundancy version equals redundancy version one and that a retransmission of the transport block is scheduled for the transmission.

13. The method of claim 10, wherein the two-bit field comprises a third value that indicates that the redundancy version equals redundancy version two and that a retransmission of the transport block is scheduled for the transmission.

14. The method of claim 10, wherein the two-bit field comprises a fourth value that indicates that the redundancy version equals redundancy version three and that a retransmission of the transport block is scheduled for the transmission.

15. The method of claim 10, wherein the directing comprises directing the control information via a downlink control channel.

16. The method of claim 10, wherein the directing comprises directing the control information via an uplink control channel.

17. A machine-readable storage medium, comprising executable instructions that, when executed by a processor, facilitate performance of operations, comprising:

determining redundancy version information indicative of a redundancy version scheduled for a transfer of a transport block from a transmitter device to a receiver device via a transport channel;

based on the redundancy version information, determining an adaptable data structure for control data that is to be transferred from the transmitter device to the receiver device, wherein the adaptable data structure comprises a two-bit field that jointly indicates the redundancy version and a new data indicator, and

directing the control data from the transmitter device to the receiver device via a control channel, wherein the control data is formatted in accordance with the adaptable data structure.

18. The machine-readable storage medium of claim 17, wherein the redundancy version defines a starting point for extracting bits from a systematic bit stream associated with the transport block.

19. The machine-readable storage medium of claim 17, wherein the transport block is encoded based on a systematic code.

20. The machine-readable storage medium of claim 17, wherein the redundancy version is determined based on a circular buffer utilized for rate matching.