Method and apparatus for providing channel assignment information used to support uplink and downlink channels

• US 10,237,854 B2
• Filed: 04/20/2016
• Issued: 03/19/2019
• Est. Priority Date: 11/18/2003
• Status: Active Grant

• Current Assignee: Interdigital Technology Corporation (InterDigital, Inc.)
• Original Assignee: Interdigital Technology Corporation (InterDigital, Inc.)
• Inventors: Rudolf, Marian, Dick, Stephen G., Pietraski, Philip J.
• Primary Examiner(s): Renner, Brandon M
• Application Number:
  US15/134,019
• Publication Number:
  US 20160234823A1
• Time in Patent Office: 1,063 Days
• Field of Search: None
• CPC Class Codes: H04L 1/0046 Code rate detection or code type detection H04L1/0038 takes precedence; detection of the data rate H04L25/0262; for packet format H04L1/0091
• CPC Class Codes: H04L 1/0061 Error detection codes
• CPC Class Codes: H04L 1/0072 Error control for data other than payload data, e.g. control data
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/0091 Signaling for the administration of the divided path
• CPC Class Codes: H04L 5/14 Two-way operation using the same type of signal, i.e. duplex
• CPC Class Codes: H04W 48/16 Discovering, processing access restriction or access information
• CPC Class Codes: H04W 72/0446 Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal

Abstract

A WTRU receives a control message intended for the WTRU in a shared physical radio resource space in a transmission time interval (TTI) monitored by the WTRU. The WTRU determines whether the control message is intended for the WTRU based on WTRU identity-masked cyclic redundancy check bits. The WTRU processes the control message. The control message has radio resource assignment information and a separate indication indicating whether the control message is a type of control message associated with an uplink or a downlink transmission. The WTRU processes a downlink transmission received in assigned radio resources in the TTI on a condition that the indication indicates that the control message type is associated with a downlink transmission. The WTRU transmits an uplink transmission in assigned radio resources in a subsequent TTI on a condition that the indication indicates that the control message type is associated with an uplink transmission.

Claims

1. A wireless transmit/receive unit (WTRU) comprising:

circuitry configured to receive a control message intended for the WTRU in a shared physical radio resource space in a transmission time interval (TTI) monitored by the WTRU;

circuitry configured to determine whether the control message is intended for the WTRU based on WTRU identity-masked (ID-masked) cyclic redundancy check (CRC) bits;

circuitry configured to process the control message;

wherein the control message has radio resource assignment information and a separate indication indicating whether the control message is a type of control message associated with an uplink or a downlink transmission;

circuitry configured to process a downlink transmission received in assigned radio resources in the TTI on a condition that the separate indication indicates that the control message type is associated with a downlink transmission; and

circuitry configured to transmit an uplink transmission in assigned radio resources in a subsequent TTI on a condition that the separate indication indicates that the control message type is associated with an uplink transmission, wherein the uplink transmission is a fixed number of time slots after reception of the control message on a condition that the separate indication indicates that the control message type is associated with an uplink transmission, wherein the fixed number of time slots is at least two slots.

2. The WTRU of claim 1, wherein the separate indication is included in the WTRU ID-masked CRC bits.

3. The WTRU of claim 1, wherein the shared physical radio resource space is defined by a set of channelization codes.

4. A method implemented by a wireless transmit/receive unit (WTRU) comprising:

receiving a control message intended for the WTRU in a shared physical radio resource space in a transmission time interval (TTI) monitored by the WTRU;

determining whether the control message is intended for the WTRU based on WTRU identity-masked (ID-masked) cyclic redundancy check (CRC) bits;

processing the control message;

wherein the control message has radio resource assignment information and a separate indication indicating whether the control message is a type of control message associated with an uplink or a downlink transmission;

processing a downlink transmission received in assigned radio resources in the TTI on a condition that the separate indication indicates that the control message type is associated with a downlink transmission; and

transmitting an uplink transmission in assigned radio resources in a subsequent TTI on a condition that the separate indication indicates that the control message type is associated with an uplink transmission, wherein the uplink transmission is a fixed number of time slots after reception of the control message on a condition that the separate indication indicates that the control message type is associated with an uplink transmission, wherein the fixed number of time slots is at least two slots.

5. The method of claim 4, wherein the separate indication is included in the WTRU ID-masked CRC bits.

6. The method of claim 4, wherein the shared physical radio resource space is defined by a set of channelization codes.