Method And Apparatus For Data Transmission With User Selection

• US 20120314735A1
• Filed: 06/13/2011
• Published: 12/13/2012
• Est. Priority Date: 06/13/2011
• Status: Active Grant

• Current Assignee: WSOU Investments, LLC (WSOU Holdings, LLC)
• Original Assignee: Alcatel-Lucent SA (Nokia Corporation)
• Inventors: Ashikhmin, Alexei, Whiting, Philip A.
• Granted Patent: US 9,301,313 B2
• Time in Patent Office: Days
• US Class Current: 375/219
• CPC Class Codes: H04W 72/121 for groups of terminals or users
• CPC Class Codes: H04W 74/04 Scheduled access hybrid access H04W74/02
• CPC Class Codes: H04W 8/28 Number portability ; Network address portability

Abstract

Various methods and devices are provided to address the need for improved data transmission with coherence interval user selection. In one method, a transmit group to which to transmit during a first coherence time interval is selected. The transmit group is selected (101) from a plurality of users for which there is data to transmit during the first coherence time interval. The data associated with users in the transmit group is transmitted (102) to the transmit group during the first coherence time interval. Subsequent transmit groups to which to transmit during subsequent coherence time intervals are also selected (103). A user of the plurality of users is selected for transmission over the course of the first coherence time interval and the subsequent coherence time intervals with a predetermined probability.

Claims

1. A method comprising:

selecting a transmit group to which to transmit during a first coherence time interval, wherein the transmit group is selected from a plurality of users for which there is data to transmit during the first coherence time interval;

transmitting the data associated with users in the transmit group to the transmit group during the first coherence time interval;

selecting subsequent transmit groups to which to transmit during subsequent coherence time intervals, wherein a user of the plurality of users is selected for transmission over the course of the first coherence time interval and the subsequent coherence time intervals with a predetermined probability.

2. The method as recited in claim 1, wherein transmitting the data associated with users in the transmit group to the transmit group during the first coherence time interval comprises:

transmitting the data without indicating to the plurality of users which users are in the transmit group.

3. The method as recited in claim 1, wherein transmitting the data associated with users in the transmit group to the transmit group during the first coherence time interval comprises:

transmitting at least one symbol to each user in the transmit group during the first coherence time interval.

4. The method as recited in claim 1, further comprising:

discarding the data associated with users not in the transmit group but for transmission during the first coherence time interval.

5. The method as recited in claim 1, further comprising:

utilizing error correcting coding to protect data to be transmitted to the plurality of users.

6. The method as recited in claim 5, wherein utilizing error correcting coding to protect data to be transmitted to the plurality of users comprises:

using the predetermined probability of selecting the user for transmission to protect data to be transmitted to the user.

7. An article of manufacture comprising a processor-readable storage medium storing one or more software programs which when executed by one or more processors performs the steps of the method of claim 1.

8. A method comprising:

receiving signaling by a user device from a transceiver node during multiple coherence time intervals, wherein the user device has a predetermined probability of being transmitted to during each of the multiple coherence time intervals;

using the predetermined probability of being transmitted to during each of the multiple coherence time intervals to decode the received signaling.

9. The method as recited in claim 8, wherein using the predetermined probability of being transmitted to during each of the multiple coherence time intervals to decode the received signaling comprises

decoding the received signaling without making a hard decision regarding whether the user device was being transmitted to during each of the multiple coherence time intervals.

10. The method as recited in claim 8, wherein using the predetermined probability of being transmitted to during each of the multiple coherence time intervals to decode the received signaling comprises

utilizing an error correcting decoder to decode the received signaling.

11. An article of manufacture comprising a processor-readable storage medium storing one or more software programs which when executed by one or more processors performs the steps of the method of claim 8.

12. A transceiver node of a communication system, the transceiver node being configured to communicate with other devices in the system, wherein the transceiver node is operative

to select a transmit group to which to transmit during a first coherence time interval, wherein the transmit group is selected from a plurality of users for which there is data to transmit during the first coherence time interval,

to transmit the data associated with users in the transmit group to the transmit group during the first coherence time interval, and

to select subsequent transmit groups to which to transmit during subsequent coherence time intervals, wherein a user of the plurality of users is selected for transmission over the course of the first coherence time interval and the subsequent coherence time intervals with a predetermined probability.

13. The transceiver node as recited in claim 12, wherein being operative to transmit the data associated with users in the transmit group to the transmit group during the first coherence time interval comprises:

being operative to transmit the data without indicating to the plurality of users which users are in the transmit group.

14. The transceiver node as recited in claim 12, wherein being operative to transmit the data associated with users in the transmit group to the transmit group during the first coherence time interval comprises:

being operative to transmit at least one symbol to each user in the transmit group during the first coherence time interval.

15. The transceiver node as recited in claim 12, further comprising:

being operative to discard the data associated with users not in the transmit group but for transmission during the first coherence time interval.

16. The transceiver node as recited in claim 12, further comprising:

being operative to utilize error correcting coding to protect data to be transmitted to the plurality of users.

17. The transceiver node as recited in claim 16, wherein being operative to utilize error correcting coding to protect data to be transmitted to the plurality of users comprises:

being operative to use the predetermined probability of selecting the user for transmission to protect data to be transmitted to the user.

18. A user device of a communication system, the user device being configured to communicate with other devices in the system, wherein the user device is operative

to receive signaling from a transceiver node during multiple coherence time intervals, wherein the user device has a predetermined probability of being transmitted to during each of the multiple coherence time intervals, and

to use the predetermined probability of being transmitted to during each of the multiple coherence time intervals to decode the received signaling.

19. The user device as recited in claim 18, wherein being operative to use the predetermined probability of being transmitted to during each of the multiple coherence time intervals to decode the received signaling comprises

being operative to decode the received signaling without making a hard decision regarding whether the user device was being transmitted to during each of the multiple coherence time intervals.

20. The user device as recited in claim 18, wherein being operative to use the predetermined probability of being transmitted to during each of the multiple coherence time intervals to decode the received signaling comprises

being operative to utilize an error correcting decoder to decode the received signaling.