US 9,432,970 B2 · Method and device for transmitting multimedia broadcast multicast service notification messages

Abstract

A method and device for transmitting Multimedia Broadcast Multicast Service (MBMS) notification messages are provided in the present invention. The method comprises: transmitting the MBMS notification messages in the Physical Downlink Control Channel (PDCCH) in an idle sub-frame or a sub-frame having a minimal impact on the scheduling of other services, which is selected in a period of time window starting from the time of transmitting the MBMS notification messages; or transmitting the MBMS notification messages in the PDCCH of a Multimedia Broadcast over Single Frequency Network (MBSFN) sub-frame. The device comprises: a MBMS notification message generating module and a MBMS notification message transmitting module. Compared with the prior art, the method and device of the present invention will not cause the problem that a PDCCH public searching area of the sub-frame does not have enough carrying capability and can save a Radio Network Temporary Identity (RNTI) for the system.

Claims11

Dependent claims

A method for transmitting Multicast Control Channel (MCCH) information update indication information, comprising:

constructing Multicast Control Channel (MCCH) information update indication information;
adding Cycle Redundancy Check (CRC) bits to the MCCH information update indication information in a Physical Downlink Control Channel (PDCCH), and scrambling the CRC bits with an arranged Radio Network Temporary Identity (RNTI) identifying the MCCH information update indication information as a scrambling code;
and
transmitting the MCCH information update indication information in a public searching area of the PDCCH of a Multimedia Broadcast over Single Frequency Network (MBSFN) sub-frame which does not carry control information corresponding to System Information RNTI (SI-RNTI), Random Access RNTI (RA-RNTI) and Paging RNTI (P-RNTI) simultaneously;
wherein the MCCH information update indication information is carried in the PDCCH of MBSFN sub-frames by an arranged RNTI.

2 more elements

A computer-readable memory device comprising a set of instructions stored therein which, when executed by a processor, cause the processor to:

construct Multicast Control Channel (MCCH) information update indication information;
add Cycle Redundancy Check (CRC) bits to the MCCH information update indication information in a Physical Downlink Control Channel (PDCCH), and scramble the CRC bits with an arranged Radio Network Temporary Identity (RNTI) identifying the MCCH information update indication information as a scrambling code;
transmit the MCCH information update indication information in a public searching area of the PDCCH of a Multimedia Broadcast over Single Frequency Network (MBSFN) sub-frame which does not carry control information corresponding to System Information RNTI (SI-RNTI), Random Access RNTI (RA-RNTI) and Paging RNTI (P-RNTI) simultaneously;
and
carry the MCCH information update indication information in the PDCCH of MBSFN sub-frames by an arranged RNTI.

2 more elements

Dependencies are inferred from the claim text.

Method and device for transmitting multimedia broadcast multicast service notification messages

Life of this patent

Method and device for transmitting multimedia broadcast multicast service notification messages

Life of this patent

Abstract

Claims11