COMMUNICATION METHOD AND DEVICE OF BROADCAST AND/OR MULTICAST IN RADIO NETWORK

• US 20120044851A1
• Filed: 04/28/2009
• Published: 02/23/2012
• Est. Priority Date: 04/28/2009
• Status: Active Grant

• Current Assignee: Thales DIS France SA (Thales SA)
• Original Assignee: Gemalto SA (Thales SA)
• Inventors: Wang, He, Chen, Yu
• Granted Patent: US 8,989,204 B2
• Time in Patent Office: Days
• US Class Current: 370/312
• CPC Class Codes: H04W 4/12 Messaging; Mailboxes; Announcements
• CPC Class Codes: H04W 72/30 Resource management for broadcast services

Abstract

The invention discloses a communication method and device of broadcast and/or multicast in radio network. The eNB determines dynamic scheduling control information of each service, according to the practical transmission of the broadcast and/or multicast service in one scheduling period, and provides, in a MAC packet data unit, the UE with the dynamic scheduling control information; the UE receives, in a MAC packet data unit, the dynamic scheduling control information, and receives the broadcast and/or multicast service data from the eNB in the scheduling period, according to the dynamic scheduling control information. (FIG. 4)

Claims

1. A method, in an eNB of radio communication networks, for providing a UE with broadcast and/or multicast service, comprising the steps of:

i. determining dynamic scheduling control information of each service, according to the practical transmission of the broadcast and/or multicast service in one scheduling period;

ii. providing, in a MAC packet data unit, the UE with the dynamic scheduling control information; and

iii. transmitting the broadcast and/or multicast service data to the UE in the scheduling period.

2. A method according to claim 1, wherein the dynamic scheduling control information comprises information about the practical ending subframe of the transmission of the service data in the scheduling period;

the method further comprises the following steps of;

a. providing the UE with information about the predefined starting subframe of the transmission of the service data in the scheduling period, as well as the MBSFN subframe allocation information predefined for at least one scheduling period.

3. A method according to claim 2, wherein the information about the practical ending subframe of the transmission comprises the serial number of the practical ending subframe of the transmission in multicast subframes of the scheduling period, and the information about the predefined starting subframe of the transmission comprises the multicast channel allocation pattern.

4. A method according to claim 1, further comprising the following steps of:

allocating subframes not being used for practical transmission to other services, according to the predefined ending subframe of the transmission of the service data in the scheduling period and the practical ending subframe of the transmission of the service data in the scheduling period.

5. A method according to claim 1, wherein the radio communication network is based on transmission mode of MBFSN of LTE, and the method further comprises the following steps of:

determining the practical transmission of each service in the scheduling period, according to a content synchronization rule unified among each SFN belonging to the same region of MBSFN.

6. A method according to claim 1, wherein, the step ii comprises:

transmitting to the UE the dynamic scheduling control information in the form of MAC CE, in the first subframe of the scheduling period, and retransmitting it within the scheduling period;

repeating steps i to iii for every scheduling period.

7. A method, in a UE of radio communication networks, for receiving broadcast and/or multicast service from a eNB, comprising the following steps of:

I. receiving from the eNB, in a MAC packet data unit, dynamic scheduling control information of the broadcast and/or multicast service for one scheduling period, the dynamic scheduling control information indicating the practical transmission of service data within the scheduling period;

II. receiving the broadcast and/or multicast service data from the eNB in the scheduling period, according to the dynamic scheduling control information.

8. A method according to claim 7, wherein the dynamic scheduling control information comprises information about the practical ending subframe of the transmission of the service data in the scheduling period, and the method further comprises the following steps of:

receiving, from the eNB, information about the predefined starting subframe of the transmission of the service data in the scheduling period, as well as the MBSFN subframe allocation information predefined for at lease one scheduling period;

the step II comprises;

II1. determining the starting subframe and the ending subframe of the transmission of the broadcast and/or multicast service data in the scheduling period;

II2. receiving, from the eNB, the broadcast and/or multicast service data, from the starting subframe to the ending subframe of the transmission.

9. A method according to claim 8, wherein the information about the practical ending subframe of the transmission comprises the serial number of the practical ending subframe of the transmission in multicast subframes of the scheduling period, the information about the predefined starting subframe of the transmission comprises the multicast channel allocation pattern, and the step II1 comprises:

determining the starting subframe and the ending subframe of the transmission of the broadcast and/or multicast service data in the scheduling period, according to the multicast channel allocation pattern and the serial number of the practical ending subframe of the transmission in multicast subframes of the scheduling period, on the basis broadcast and/or multicast subframe allocation information.

10. A method according to claim 7, wherein the radio communication network is based on transmission mode of MBSFN of LTE.

11. A method according to claim 7, wherein the step I comprises:

receiving the dynamic scheduling control information in the form of MAC CE, in the first subframe of the scheduling period, and re-receiving it within the scheduling period;

repeating steps I to II for every scheduling period.

12. A device, in an eNB of radio communication networks, for providing a UE with broadcast and/or multicast service, comprising:

a determining unit, for determining dynamic scheduling control information of each service, according to the practical transmission of the broadcast and/or multicast service in one scheduling period;

a first providing unit, for providing, in a MAC packet data unit, the UE with the dynamic scheduling control information; and

a transmitter, for transmiting the broadcast and/or multicast service data to the UE in the scheduling period.

23. An eNB of radio communication networks, comprising a device, in an eNB of radio communication networks, for providing a UE with broadcast and/or multicast service according to claim 12.

13-17. -17. (canceled)

18. A device, in a UE of radio communication networks, for receiving broadcast and/or multicast service from an eNB, comprising:

a first obtaining unit, for receiving from the eNB, in a MAC packet data unit, dynamic scheduling control information of the broadcast and/or multicast service for one scheduling period, the dynamic scheduling control information indicating the practical transmission of service data within the scheduling period;

a receiving unit, for receiving the broadcast and/or multicast service data from the eNB in the scheduling period, according to the dynamic scheduling control information.

24. A UE of radio communication networks, comprising a device, in a UE of radio communication networks, for receiving broadcast and/or multicast service from an eNB according to claim 18.

19-22. -22. (canceled)