Method and apparatus for processing a downlink shared channel

• US 9,026,885 B2
• Filed: 12/23/2013
• Issued: 05/05/2015
• Est. Priority Date: 05/14/2001
• Status: Expired due to Term

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Bolourchi, Nader, Terry, Stephen E., Dick, Stephen G.
• Primary Examiner(s): Alphonse, Fritz
• Application Number:
  US14/139,037
• Publication Number:
  US 20140185546A1
• Time in Patent Office: 498 Days
• Field of Search: 714/758, 714/745, 714/708
• 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

Embodiments include a method and apparatus for processing a downlink shared channel. In one embodiment, a Node-B includes circuitry configured to process control information for a user equipment (UE) and to produce an N bit cyclic redundancy check (CRC) associated with the control information. The Node-B includes circuitry configured to modulo 2 add the N bit CRC with an N bit UE identity to produce an N bit field, wherein the UE identity is any one of a plurality of UE identities associated with the UE. The Node-B includes circuitry configured to transmit a wireless signal of a control channel, wherein the wireless signal comprises the N bit field and the control information.

Claims

1. A Node-B comprising:

circuitry configured to process control information for a user equipment (UE) and to produce an N-bit cyclic redundancy check (CRC) associated with the control information;

circuitry configured to module 2 add the N-bit CRC with an N-bit UE identity to produce an N-bit field, wherein the UE identity is any one of a plurality of UE identities associated with the UE; and

circuitry configured to transmit a wireless signal of a control channel, wherein the wireless signal comprises the N-bit field and the control information.

2. The Node B of claim 1, wherein the circuitry configured to transmit the wireless signal is further configured to transmit on any one of a plurality of control channels.

3. The Node B of claim 1, wherein at least one of the plurality of UE identities of the UE is unique to the UE.

4. The Node B of claim 1, wherein at least one of the plurality of UE identities of the UE is an identity assigned to the UE.

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

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

7. The Node B of claim 1, wherein at least one of the plurality of UE identities of the UE identifies a subset of UEs operating in a wireless network.

8. A user equipment (UE) comprising:

circuitry configured to receive a wireless signal from a control channel, wherein the wireless signal comprises an N-bit field and control information and the N-bit field comprises a cyclic redundancy check (CRC) modulo masked with a UE identity (ID);

circuitry to determine whether the CRC and UE ID are correct; and

circuitry to transmit data indicating whether CRC and UE ID of the received wireless signal are correct.

9. The UE of claim 8, wherein the UE comprises a wide-band code division multiple access (W-CDMA) UE.

10. The UE of claim 8, wherein the CRC comprises a different number of bits than the UE ID.

11. The UE of claim 8, wherein the CRC comprises the same number of bits as the UE ID.

12. The UE of claim 8, wherein the circuitry to determine whether the CRC and UE ID are correct is included in a medium access control (MAC) layer circuitry.

13. The UE of claim 8, further comprising:

circuitry to discard the received wireless signal if the CRC is incorrect.

14. A base station comprising:

circuitry for generating a wireless signal comprising an N-bit field and control information, wherein the N-bit field comprises a cyclic redundancy check (CRC) modulo masked with a user equipment (UE) identity (ID);

transmission circuitry to transmit the wireless signal via a control channel to a UE; and

circuitry for receiving data indicating whether CRC and UE ID of the transmitted wireless signal are correct.

15. The base station of claim 14, wherein the CRC comprises a different number of bits than the UE ID.

16. The base station of claim 14, wherein the CRC comprises the same number of bits as the UE ID.

17. The base station of claim 14, further comprising:

physical layer circuitry to calculate the CRC.

18. The base station of claim 14, further comprising:

medium access control (MAC) layer circuitry to generate the control information.

19. The base station of claim 14, wherein the wireless signal is transmitted as a data burst.