METHOD AND APPARATUS FOR SIGNALING IN MULTIPLE USER ONE-SLOT OPERATION IN WIRELESS COMMUNICATION

• US 20090201880A1
• Filed: 12/05/2008
• Published: 08/13/2009
• Est. Priority Date: 12/06/2007
• Status: Active Grant

• Current Assignee: InterDigital Patent Holdings, Inc. (InterDigital, Inc.)
• Original Assignee: InterDigital Patent Holdings, Inc. (InterDigital, Inc.)
• Inventors: Rudolf, Marian, Aghili, Behrouz
• Granted Patent: US 7,978,592 B2
• Time in Patent Office: Days
• US Class Current: 370/331
• CPC Class Codes: H04L 25/03834 using pulse shaping
• CPC Class Codes: H04L 27/0008 arrangements for allowing a transmitter or receiver to use more than one type of modulation negotiating modulation type for two-way transmission paths H04L5/1453
• CPC Class Codes: H04L 5/1438 Negotiation of transmission parameters prior to communication modified according to link quality H04L1/0001

Abstract

Disclosed are multiple embodiments of method and apparatus to facilitate Multiple Users Reusing One Timeslot (MUROS) operation in wireless communications. A pair of wireless transmit/receive units (WTRUs) may be multiplexed onto a timeslot using a same pulse format. A WTRU may communicate on a network using MUROS technology both on the downlink (DL) and the uplink (UL), and may use a first pulse format on the DL and a second different pulse format on the UL. Pulse format support information to facilitate MUROS operation may be communicated between a network and a WTRU. The support information may be communicated in Radio Resource Control (RRC) messages. A network may allow for concurrent operation of WTRUs using different types of MUROS technology. For example, a network may include WTRUs using MUROS based on orthogonal sub-channels (OSC) while other WTRUs use MUROS based on an interference-canceling technology such as Downlink Advanced Receiver Performance (DARP) Phase I or Phase II.

Claims

1. A method implemented in a wireless transmit/receive unit (WTRU) comprising:

transmitting a capability message including an indicator that the WTRU supports a pulse format;

receiving a configuration message, the configuration message including an indicator that the pulse format is to be used by the WTRU; and

in response to the configuration message, using the pulse format to communicate on an orthogonal sub-channels (OSC) sub-channel.

2. The method of claim 1 wherein the pulse format is a wide pulse format or a narrow pulse format.

3. The method of claim 1 wherein the capability message and the configuration message are Radio Resource Control (RRC) messages.

4. The method of claim 3 wherein the configuration message is an Assignment Command message, an Additional Assignment message, a Channel Mode Modify message, a Handover Command message, an Immediate Assignment message, an Immediate Assignment Extended, a Channel Release, or a Partial Release message.

5. The method of claim 3 wherein the indicator that the WTRU supports a pulse format is a Classmark 3 Information Element (IE) or a Radio Access Capability Information Element (IE).

6. The method of claim 3 wherein the using the pulse format to communicate on the OSC sub-channel is performed on the uplink (UL) or on the downlink (DL).

7. A wireless transmit receive unit (WTRU), comprising:

a transmitter configured to transmit a capability message, the capability message including an indicator that the WTRU supports a pulse format;

a receiver configured to receive a configuration message, the configuration message including an indicator that the WTRU pulse format is to be used by the WTRU; and

wherein either the transmitter or the receiver is further configured, in response to the configuration message, to communicate on an orthogonal sub-channels (OSC) sub-channel using the pulse format.

8. The WTRU of claim 7 wherein the pulse format is a wide pulse format or a narrow pulse format.

9. The WTRU of claim 7 wherein the capability message and the configuration message are radio resource control (RRC) messages.

10. The WTRU of claim 9 wherein the configuration message is an Assignment Command message, Additional Assignment message, Channel Mode Modify message, Handover Command message, Immediate Assignment message, Immediate Assignment Extended message, Channel Release message, or Partial Release message.

11. The WTRU of claim 9 wherein the indicator that the WTRU supports a pulse format is a Classmark 3 or a Radio Access Capability Information Element (IE).

12. The WTRU of claim 9 wherein the transmitter is configured to use the pulse format on the uplink (UL) or the receiver is configured to use the pulse format on the downlink (DL).

13. A network node, comprising:

a receiver configured to transmit a capability message from a wireless transmit/receive unit (WTRU), the capability message including an indicator that the WTRU supports a pulse format;

a transmitter configured to transmit a configuration message, the configuration message including an indicator that the WTRU pulse format is to be used by the WTRU; and

wherein either the transmitter or the receiver is further configured, in response to the configuration message, to communicate on an orthogonal sub-channels (OSC) sub-channel using the pulse format.

14. The network node of claim 13, wherein the pulse format is a wide pulse format or a narrow pulse format.

15. The network node of claim 13, wherein the capability message and the configuration message are radio resource control (RRC) messages.

16. The network node of claim 15, wherein the configuration message is an Assignment Command message, Additional Assignment message, Channel Mode Modify message, Handover Command message, Immediate Assignment message, Immediate Assignment Extended message, Channel Release message, or Partial Release message.

17. The network node of claim 15, wherein the indicator that the WTRU supports a pulse format is a Classmark 3 or a Radio Access Capability Information Element (IE).

18. The network node of claim 15, wherein the transmitter is configured to use the pulse format on the downlink (DL) or the receiver is configured to use the pulse format on the uplink (UL).