Method and apparatus for processing a downlink shared channel

• US 8,051,360 B2
• Filed: 08/24/2010
• Issued: 11/01/2011
• Est. Priority Date: 05/14/2001
• Status: Expired due to Term

• Current Assignee: Intel Corporation
• Original Assignee: Interdigital Technology Corporation (InterDigital, Inc.)
• Inventors: Dick, Stephen G., Terry, Stephen E., Bolourchi, Nader
• Primary Examiner(s): Alphonse; Fritz
• Application Number:
  US12/862,561
• Publication Number:
  US 20100318886A1
• Time in Patent Office: 434 Days
• Field of Search: 714/758, 714/755, 714/762, 714/756, 714/751, 714/39, 370/332, 370/312
• US Class Current: 714/758
• CPC Class Codes: H03M 13/09 Error detection only, e.g. using cyclic redundancy check [CRC] codes or single parity bit
• CPC Class Codes: H03M 13/37 Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03 - H03M13/35
• CPC Class Codes: H04L 1/0061 Error detection codes
• CPC Class Codes: H04L 5/0092 Indication of how the channel is divided
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal

Abstract

A method and apparatus for receiving a wireless signal of a control channel wherein the wireless signal includes control information and an N bit field. The N bit field includes an N bit cyclic redundancy check (CRC) and an N bit user equipment (UE) identity wherein the value of N is a positive integer. The UE identity may be any one of a plurality of UE identities associated with the UE.

Claims

1. A user equipment (UE) comprising:

circuitry configured to receive a wireless signal of a control channel, wherein the wireless signal comprises an N bit field and control information, and the N bit field comprises an N bit cyclic redundancy check (CRC) modulo two added to an N bit UE identity, wherein the value of N is a positive integer;

circuitry configured to determine whether criteria are met, wherein the criteria include the CRC is correct and the UE identity is any one of a plurality of UE identities associated with the UE; and

circuitry configured to use the control information to process a downlink shared channel on a condition that the criteria are met.

2. The UE of claim 1 further comprising circuitry configured to monitor a plurality of control channels.

3. The UE of claim 1 wherein at least one of the plurality of UE identities associated with the UE is unique to the UE.

4. The UE of claim 1 wherein at least one of the plurality of UE identities associated with the UE is an identity assigned to the UE.

5. The UE of claim 4 wherein the identity assigned to the UE is unique within a subset of UEs operating in a wireless network.

6. The UE of claim 1 wherein at least one of the plurality of UE identities associated with the UE identifies a group of UEs belonging to a plurality of subsets of UEs operating in a wireless network.

7. The UE of claim 1 wherein at least one of the plurality of UE identities associated with the UE is a global identity which is the same for each UE operating in a wireless network.

8. The UE of claim 7 wherein the UE receives a broadcast message associated with the global identity on the downlink shared channel.

9. The UE of claim 1 wherein at least one of the plurality of UE identities associated with the UE is further associated with a group of UEs operating in a wireless network.

10. The UE of claim 9 wherein the at least one of the plurality of UE identities associated with the UE is a global identity which is the same for each UE operating in the wireless network.

11. A method implemented in a user equipment (UE) device comprising:

the UE device receiving a wireless signal of a control channel, wherein the wireless signal comprises an N bit field and control information, and the N bit field comprises an N bit cyclic redundancy check (CRC) modulo two added to an N bit UE identity, wherein the value of N is a positive integer;

the UE device determining whether criteria are met, wherein the criteria includes the CRC is correct and the UE identity is any one of a plurality of UE identities associated with the UE device; and

the UE device using the control information to process a downlink shared channel on a condition that the criteria are met.

12. The method of claim 11 further comprising the UE device monitoring a plurality of control channels.

13. The method of claim 11 wherein at least one of the plurality of UE identities associated with the UE device is unique to the UE.

14. The method of claim 11 wherein at least one of the plurality of UE identities associated with the UE device is an identity assigned to the UE.

15. The method of claim 14 wherein the identity assigned to the UE device is unique within a subset of UE devices operating in a wireless network.

16. The method of claim 11 wherein at least one of the plurality of UE identities associated with the UE device identifies a group of UE devices belonging to a plurality of subsets of UE devices operating in a wireless network.

17. The method of claim 11 wherein at least one of the plurality of UE identities associated with the UE device is a global identity which is the same for each UE device operating in a wireless network.

18. The method of claim 17 wherein the UE device receives a broadcast message associated with the global identity on the downlink shared channel.

19. The method of claim 11 wherein at least one of the plurality of UE identities associated with the UE device is further associated with a group of UE devices operating in a wireless network.

20. The method of claim 19 wherein the at least one of the plurality of UE identities associated with the UE device is a global identity which is the same for each UE device operating in a wireless network.