Cell configuration in a wireless device and wireless network

• US 9,877,334 B2
• Filed: 04/05/2016
• Issued: 01/23/2018
• Est. Priority Date: 04/05/2015
• Status: Active Grant

• Current Assignee: Comcast Cable Communications LLC (Comcast Corporation)
• Original Assignee: Ofinno Technologies, LLC (Ofinno, LLC)
• Inventors: Dinan, Esmael Hejazi
• Primary Examiner(s): Phunkulh, Bob
• Application Number:
  US15/090,640
• Publication Number:
  US 20160295600A1
• Time in Patent Office: 658 Days
• Field of Search: None
• CPC Class Codes: H04W 28/18 Negotiating wireless communication parameters
• CPC Class Codes: H04W 72/121 for groups of terminals or users
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 74/02 Hybrid access

Abstract

A cross-carrier scheduling group comprises a first cell and a second cell. Each of the first cell and the second cell are identified by a respective cell identifier employing a first number of bits. A wireless device receives a message comprising configuration parameters. The configuration parameters comprise a cell identifier and a first cell indicator field. The first cell indicator field employs a second number of bits. The second number is smaller than the first number. The wireless device receives downlink control information on a control channel of the second cell for a packet transmitted on the first cell.

Claims

1. A method comprising:

receiving, by a wireless device, at least one message comprising configuration parameters of a first cell in a plurality of cells, the plurality of cells grouped into one or more cross-carrier scheduling groups comprising a first cross-carrier scheduling group, the first cross-carrier scheduling group comprising the first cell and a second cell, each of the first cell and the second cell identified by a respective cell identifier employing a first number of bits, wherein the configuration parameters;

indicate that the second cell is employed for cross carrier scheduling of the first cell; and

comprise a cell identifier and a first cell indicator field, the first cell indicator field employing a second number of bits, wherein the second number is smaller than the first number;

receiving downlink control information on a control channel of the second cell for a packet transmitted on the first cell, the downlink control information comprising the first cell indicator field, the first cell indicator field identifying the first cell; and

receiving the packet on the first cell on radio resources identified by the downlink control information.

2. The method of claim 1, wherein the cell identifier corresponds to the second cell.

3. The method of claim 1, wherein:

the cell identifier employs five bits; and

the first cell indicator field employs three bits.

4. The method of claim 1, wherein the plurality of cells are grouped into a plurality of physical uplink control channel (PUCCH) groups comprising:

a primary PUCCH group comprising a primary cell with a primary PUCCH transmitted to a base station; and

a secondary PUCCH group comprising a PUCCH secondary cell with a secondary PUCCH transmitted to the base station.

5. The method of claim 4, wherein each cross-carrier scheduling group in the one or more cross-carrier scheduling groups comprises a second plurality of cells that are part of the same physical uplink control channel (PUCCH) group.

6. The method of claim 1, wherein the cell identifier comprises one or more parameters comprising:

a subgroup index and a cell index.

7. The method of claim 1, further comprising the second cell providing scheduling information for one or more cells, each of the one or more cells identified by a cell indicator field within the first cross-carrier scheduling group.

8. The method of claim 1, further comprising the second cell providing scheduling information for one or more cells, each of the one or more cells identified by a corresponding cell indicator field within the first cross-carrier scheduling group.

9. The method of claim 1, wherein the configuration parameters further comprise a starting symbol of a downlink shared channel in a plurality of subframes.

10. The method of claim 1, wherein the first cell in the first cross-carrier scheduling group and a third cell in a second cross-carrier scheduling group are assigned the same carrier indicator field.

11. A method comprising:

transmitting, by a base station, at least one message comprising configuration parameters of a first cell in a plurality of cells, the plurality of cells grouped into one or more cross-carrier scheduling groups comprising a first cross-carrier scheduling group, first cross-carrier scheduling group comprising the first cell and a second cell, each of the first cell and the second cell identified by a respective cell identifier employing a first number of bits, wherein the configuration parameters;

indicate that the second cell is employed for cross carrier scheduling of the first cell; and

comprise a cell identifier and a first cell indicator field, the first cell indicator field employing a second number of bits, wherein the second number is smaller than the first number;

transmitting downlink control information on a control channel of the second cell for a packet transmitted on the first cell, the downlink control information comprising the first cell indicator field, the first cell indicator field identifying the first cell; and

transmitting the packet on the first cell on radio resources identified by the downlink control information.

12. The method of claim 11, wherein the cell identifier corresponds to the second cell.

13. The method of claim 11, wherein:

the cell identifier employs five bits; and

the first cell indicator field employs three bits.

14. The method of claim 11, wherein the plurality of cells are grouped into a plurality of physical uplink control channel (PUCCH) groups comprising:

a primary PUCCH group comprising a primary cell with a primary PUCCH received by the base station; and

a secondary PUCCH group comprising a PUCCH secondary cell with a secondary PUCCH received by the base station.

15. The method of claim 14, wherein each cross-carrier scheduling group in the one or more cross-carrier scheduling groups comprises a second plurality of cells that are part of the same physical uplink control channel (PUCCH) group.

16. The method of claim 11, wherein the cell identifier comprises one or more parameters comprising:

a subgroup index and a cell index.

17. The method of claim 11, further comprising the second cell providing scheduling information for one or more cells, each of the one or more cells identified by a corresponding cell indicator field within the first cross-carrier scheduling group.

18. The method of claim 11, wherein the second cell provides scheduling information for one or more cells, each of the one or more cells identified by a unique cell indicator field within the first cross-carrier scheduling group.

19. The method of claim 11, wherein the configuration parameters further comprise a starting symbol of a downlink shared channel in a plurality of subframes.

20. The method of claim 11, wherein the first cell in the first cross-carrier scheduling group and a third cell in a second cross-carrier scheduling group are assigned the same carrier indicator field.