Modulation, coding and redundancy version in a wireless network

Patent metadata

Field	Value
Publication number	US-10567110-B2
Application number	US-201715421991-A
Country	US
Kind code	B2
Filing date	Feb 1, 2017
Priority date	Mar 17, 2016
Publication date	Feb 18, 2020
Grant date	Feb 18, 2020

Abstract

A wireless device receives a first downlink control information (DCI) indicating first uplink resources of a licensed cell. The first DCI comprising a first field indicating one of: a modulation and coding scheme (MCS) for an initial transmission or a re-transmission redundancy version (RV). The wireless device receives a second DCI indicating second uplink resources of a licensed-assisted-access cell. The second DCI comprises an MCS field and an RV field. The wireless device transmits a first transport block (TB) employing the first field and transmits a second TB employing the MCS field and the RV field.

First claim

What is claimed is:

1. A method comprising:
receiving, by a wireless device, a first downlink control information (DCI) indicating first uplink resources of a first subframe of a licensed cell, the first DCI comprising a first field having a first number of bits indicating one of:
a modulation and coding scheme (MCS) for an initial transmission with a redundancy version of zero; or
a re-transmission redundancy version (RV) value;

receiving a second DCI indicating second uplink resources of a second subframe of a licensed-assisted-access cell, the second DCI comprising an MCS field having the first number of bits an RV field having a second number of bits, and a transmit power control (TPC) field;
transmitting, via the first subframe, one or more first transport blocks (TBs) employing the first field to determine a first MCS and a first RV value for the one or more first TBs; and
transmitting, via a physical uplink shared channel during the second subframe, one or more second TBs employing the MCS field to determine a second MCS, the RV field to determine a second RV value, and the TPC field to determine a transmit power value for the one or more second TBs.

2. The method of claim 1 , wherein:
the first field is encoded by five bits;
the MCS field is encoded by five bits;
a table is employed to determine the first MCS using the first field; and
the table is employed to determine the second MCS using the MCS field.

3. The method of claim 1 , wherein the re-transmission RV value has one of the following values: one, two or three.

4. The method of claim 1 , wherein the RV field has one of the following values: zero, one, two, or three.

5. The method of claim 1 , wherein:
the first DCI does not comprise a hybrid automatic repeat request (HARQ) process ID; and
the second DCI comprises a HARQ process ID.

6. The method of claim 1 , wherein the second DCI further comprises a listen before talk (LBT) field employed for performing an LBT procedure before transmitting the one or more second TBs.

7. The method of claim 1 , wherein the second DCI further comprises a resource blocks (RBs) field employed for transmitting the one or more second TBs.

8. The method of claim 1 , wherein the second DCI further comprises a new data indicators (NDI) field employed for transmitting the one or more second TBs.

9. A wireless device comprising:
one or more processors; and
memory storing instructions that, when executed by the one or more processors, cause the wireless device to:
receive a first downlink control information (DCI) indicating first uplink resources of a first subframe of a licensed cell, the first DCI comprising a first field having a first number of bits indicating one of:
a modulation and coding scheme (MCS) for an initial transmission with a redundancy version of zero; or
a re-transmission redundancy version (RV) value;

receive a second DCI indicating second uplink resources of a second subframe of a licensed-assisted-access cell, the second DCI comprising an MCS field having the first number of bits an RV field having a second number of bits, and a transmit power control (TPC) field;
transmit, via the first subframe, one or more first transport blocks (TBs) employing the first field to determine a first MCS and a first RV value for the one or more first TBs; and
transmit, via a physical uplink shared channel during the second subframe, one or more second TBs employing the MCS field to determine a second MCS, the RV field to determine a second RV value, and the TPC field to determine a transmit power value for the one or more second TBs.

10. The wireless device of claim 9 , wherein:
the first field is encoded by five bits; and
the MCS field is encoded by five bits;
a table is employed to determine the first MCS using the first field; and
the table is employed to determine the second MCS using the MCS field.

11. The wireless device of claim 9 , wherein the re-transmission RV value has one of the following values: one, two or three.

12. The wireless device of claim 9 , wherein the RV field has one of the following values: zero, one, two, or three.

13. The wireless device of claim 9 , wherein:
the first DCI does not comprise a hybrid automatic repeat request (HARQ) process ID; and
the second DCI comprises a HARQ process ID.

14. The wireless device of claim 9 , wherein the second DCI further comprises a listen before talk (LBT) field employed for performing an LBT procedure before transmitting the one or more second TBs.

15. The wireless device of claim 9 , wherein the second DCI further comprises a resource blocks (RBs) field employed for transmitting the one or more second TBs.

16. The wireless device of claim 9 , wherein the second DCI further comprises a new data indicators (NDI) field employed for transmitting the one or more second TB s.

17. A method comprising:
transmitting, by a base station, a first downlink control information (DCI) indicating first uplink resources of a first subframe of a licensed cell, the first DCI comprising a first field having a first number of bits indicating one of:
a modulation and coding scheme (MCS) for an initial transmission with a redundancy version of zero; or
a re-transmission redundancy version (RV) value;

transmitting a second DCI indicating second uplink resources of a second subframe of a licensed-assisted-access cell, the second DCI comprising an MCS field having the first number of bits, an RV field having a second number of bits, and a transmit power control (TPC) field;
receiving, via the first subframe, one or more first transport blocks (TBs) employing the first field to determine a first MCS and a first RV value for the one or more first TBs; and
receiving, via a physical uplink shared channel during the second subframe, one or more second TBs employing the MCS field to determine a second MCS, the RV field to determine a second RV value, and the TPC field to determine a transmit power value for the one or more second TBs.

18. The method of claim 17 , wherein:
the first field is encoded by five bits; and
the MCS field is encoded by five bits;
a table is employed to determine the first MCS using the first field; and
the table is employed to determine the second MCS using the MCS field.

19. The method of claim 17 , wherein the re-transmission RV value has one of the following values: one, two or three.

20. The method of claim 17 , wherein the RV field has one of the following values:
zero, one, two, or three.

Assignees

• Ofinno Technologies Llc
• Ofinno Llc

Inventors

• Dinan Esmael Hejazi

Classifications

• H04L1/0025

  Transmission of mode-switching indication · CPC title

• H04L1/1819

  with retransmission of additional or different redundancy · CPC title

• H04L5/0091 Primary

  Signalling for the administration of the divided path, e.g. signalling of configuration information · CPC title

• H04L1/1822

  involving configuration of automatic repeat request [ARQ] with parallel processes · CPC title

• H04L27/0006

  Assessment of spectral gaps suitable for allocating digitally modulated signals, e.g. for carrier allocation in cognitive radio (for spectrum sharing between different networks H04W16/14) · CPC title