Point to multi-point services using high speed shared channels in wireless communication systems

• US 20030220119A1
• Filed: 04/30/2003
• Published: 11/27/2003
• Est. Priority Date: 05/01/2002
• Status: Abandoned Application

• Current Assignee: Interdigital Technology Corporation (InterDigital, Inc.)
• Original Assignee: Interdigital Technology Corporation (InterDigital, Inc.)
• Inventors: Terry, Stephen E.
• Application Number:
  US10/426,191
• Publication Number:
  US 20030220119A1
• Time in Patent Office: Days
• US Class Current: 455/466
• CPC Class Codes: H04L 1/0003 by switching between different modulation schemes
• CPC Class Codes: H04L 1/0026 Transmission of channel quality indication
• CPC Class Codes: H04L 1/0041 Arrangements at the transmitter end
• CPC Class Codes: H04L 1/1819 with retransmission of additional or different redundancy
• CPC Class Codes: H04L 1/20 using signal quality detector
• CPC Class Codes: H04L 2001/0093 Point-to-multipoint
• CPC Class Codes: H04W 4/06 Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
• CPC Class Codes: H04W 4/08 User group management
• CPC Class Codes: H04W 48/12 using downlink control channel
• CPC Class Codes: H04W 72/04 Wireless resource allocation
• CPC Class Codes: H04W 72/30 Resource management for broadcast services
• CPC Class Codes: H04W 72/543 based on requested quality, e.g. QoS

Abstract

Service data is transferred in a wireless communication system. A first service identification is transmitted for reception by a group of users of a cell in the system. The group of users does not include all of the users of the cell. Each of the group of users receives the service identification. Each of the group of users monitors for a second service identification being transmitted over a high speed downlink shared channel (HS-DSCH). The service data is transmitted over the HS-DSCH with the second service identification. Each of the group of users detects the second service identification and receives the service data of the HS-DSCH.

Claims

1. A method for transferring service data in a wireless communication system, the method comprising:

transmitting a first service identification for reception by a group of users of a cell in the system, the group of users not including all of the users of the cell;

receiving by each of the group of users the service identification;

monitoring by each of the group of users for a second service identification being transmitted over a high speed downlink shared channel (HS-DSCH);

transmitting over the HS-DSCH the service data with the second service identification; and

each of the group of users detecting the second service identification and receiving the service data of the HS-DSCH.

2. The method of claim 1 wherein the service data is being sent to a plurality of user groups, each group being sent a different first group identification over a downlink common control channel and a single service identification as the second service identification.

3. The method of claim 1 wherein each of the group of users is being sent a same first service identification over a downlink common control channel to all of the group of users.

4. A Node-B comprising:

an uplink control channel receiver for receiving block error rate information from a plurality of users of a high speed shared channel (HS-DSCH);

a modulation and code set selection device for selecting a modulation and coding set for a HS-DSCH transmission using the received block error rate information;

a HS-DSCH generator for producing data of the HS-DSCH transmission signal at the selected modulation and coding set and a service identification;

a downlink common control channel generator for producing a common control channel signal having a service identification; and

an antenna array for transmitting the HS-DSCH transmission signal and the downlink common control channel.

5. A Node-B comprising:

an input configured to receive point to point (PtP) and point to multi-point (PtM) data;

a scheduling mechanism for receiving the received data and scheduling the data for transmission as PtP and PtM transmissions, the PtM transmissions being sent over a high speed shared channel transmitting data to multiple users simultaneously; and

a signaling device for signaling the data schedule to users.

6. The Node-B of claim 5 wherein the scheduling is based on a data latency and data throughput requirements of the received data.

7. The Node-B of claim 5 wherein the scheduling is performed on a transmission time interval basis.

8. The Node-B of claim 5 wherein the scheduling is based on a robustness of the PtP and PtM transmissions.

9. The Node-B of claim 5 wherein the scheduling of retransmissions of PtM data is based on received acknowledgements and negative acknowledgements of all the users intended to receive the PtM data.

10. A method for transferring service data in a wireless communication system, the method comprising:

receiving data of a common traffic channel for transfer over a wireless interface;

mapping the common traffic channel to a shared channel;

transmitting the common traffic channel data through the wireless interface over the shared channel;

receiving the common traffic channel data after transmission through the wireless interface in the shared channel;

forwarding the received shared channel data to a common traffic channel.

11. The method of claim 10 wherein the mapping comprises mapping the common traffic channel to a shared transport channel.

12. The method of claim 10 further comprising selecting a common channel or a shared channel for mapping the common traffic channel to.

13. The method of claim 10 further comprising selecting a common channel, a shared channel or a dedicated channel for mapping the common traffic channel to.

14. The method of claim 10 wherein the wireless communication system is a 3GPP communication system.

15. The method of claim 10 wherein the shared channel is a high speed downlink shared channel.