System for processing MBMS service by base station MAC layer in LTE system

A technology for processing systems and services, applied to electrical components, wireless communications, etc.

Inactive Publication Date: 2014-10-01
TIANJIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, today's technology does not carry out a complete design for the specific implementation of the MAC layer of MBMS services, but o...

Method used

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  • System for processing MBMS service by base station MAC layer in LTE system
  • System for processing MBMS service by base station MAC layer in LTE system
  • System for processing MBMS service by base station MAC layer in LTE system

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Embodiment Construction

[0075] The present invention simultaneously considers the interaction among various functional modules of the MAC layer. The number of bytes calculated by the MSI module needs to be passed to the MAC PDU module for use; the amount of data and the number of transmission blocks (TB) that can be carried in each transmission time interval (TTI) calculated by the MAC PDU module need to be passed to the multiplexing module for use; After the multiplexing module detects the packet loss, it needs to process the packet loss module; and the packet loss processing module needs to guide the scheduling module to schedule the MBMS service according to the type of the end PDU.

[0076] The embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0077] figure 1 It is a function block diagram of the processing system of the MBMS service by the MAC layer of the base station in the LTE system of the present invention. The ...

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Abstract

The invention discloses a system for processing an MBMS service by a base station MAC layer in an LTE system. The system is characterized by comprising a multiplexing module (101), an MSI module (102), an MAC PDU module (103), a processing packet losing module (104), a dispatching module (105) and a system clock (106). The byte number calculated by the MSI module needs to be transmitted to the MAC PDU module for use; the numbers of the data volume and transmission blocks (TBs) capable of being borne within each transmission time interval (TTI) and calculated by the MAC PDU module need to be transmitted to the multiplexing module (101); after the multiplexing module (101) detects that packet losing is carried out, processing is carried out through the processing packet losing module (104); the processing packet losing module needs to guide the dispatching module (105) to dispatch the MBMS service according to the type for stopping a PDU. By means of the system, synchronization of contents, time and frequencies of the service transmitted between multiple base stations is guaranteed, and the processing processes of the LTE base station MAC layer and the MBMS service are perfected.

Description

technical field [0001] The present invention relates to a long-term evolution (LTE) system technology, in particular to a technology for processing multimedia broadcast / multicast services (MBMS) by a medium access control layer (MAC) of a base station (eNB) in the long-term evolution (LTE) system. Background technique [0002] MBMS uses a single frequency network (MBSFN) to transmit services, that is, multiple cells in the MBSFN synchronization area send the same content on the same time and frequency resources, so that users can use signals from multiple cells as multipath signals Combined, the spectrum efficiency at the edge of the cell is greatly improved. [0003] In order to realize MBSFN transmission, the base stations in the MBSFN synchronization area must maintain complete synchronization of the transmission content. The synchronization (SYNC) protocol (TS25.446) provides three types of packet data units (PDU), of which PDU type 1 is used to carry data , including: ...

Claims

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Application Information

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IPC IPC(8): H04W72/00
Inventor 苏寒松张延红刘高华林木
Owner TIANJIN UNIV
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