Title:
COMMUNICATION METHOD, SYSTEM AND APPARATUS FOR BROADCAST MULTICAST
Document Type and Number:
WIPO Patent Application WO/2021/253255
Kind Code:
A1
Abstract:
Provided are a communication method, system and apparatus for broadcast multicast, which are used for reducing a communication delay. In the embodiments of the present invention, subframe resources are reserved in advance for the pre-establishment of a session, and time-frequency positions of the reserved subframe resources are broadcast. After receiving a session establishment message for a new broadcast multicast session that is sent by an MCE, a base station executes a session pre-establishment operation and a formal session multicast operation in parallel, wherein the session pre-establishment operation involves determining a subframe resource from among the reserved subframe resources and taking same as a temporary resource, informing a terminal of monitoring multicast data on the temporary resource, and issuing multicast data of a new session on a time-frequency position of the temporary resource. In this way, it can be ensured that when session establishment is initiated, the transmission of multicast data can be started, thereby greatly reducing a delay between the session establishment and the transmission of the multicast data. After receiving a time-frequency position of a formal session resource, a terminal switches to the time-frequency position of the formal session resource so as to receive the multicast data.
Inventors:
ZENG JIASHENG (CN)
Application Number:
PCT/CN2020/096463
Publication Date:
December 23, 2021
Filing Date:
June 17, 2020
Export Citation:
Assignee:
HYTERA COMM CORP LTD (CN)
International Classes:
H04W56/00
Foreign References:
| CN101888696A | 2010-11-17 | |||
| CN102143434A | 2011-08-03 | |||
| US20120163273A1 | 2012-06-28 | |||
| EP2903365A1 | 2015-08-05 |
Other References:
ERICSSON, ST-ERICSSON: "MBMS availability information in MBSFN area reserved cells", 3GPP DRAFT; R2-123697 MBMS AVAILABILITY INFORMATION IN MBSFN AREA RESERVED CELLS, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG2, no. Qingdao, China; 20120813 - 20120817, 7 August 2012 (2012-08-07), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP050665667
Attorney, Agent or Firm:
SHENPAT INTELLECTUAL PROPERTY AGENCY (CN)
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