Identification sending method, identification acquiring method, evolution base station, terminal and communication system

A transmission method and identification technology, applied in the field of wireless communication, can solve problems such as inability to perform channel estimation, inability to decode pilots, etc.

Active Publication Date: 2010-05-12
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For MBSFN mode transmission, the UE cannot decode the pilot in the prior art, and thus cannot perform channel estimation

Method used

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  • Identification sending method, identification acquiring method, evolution base station, terminal and communication system
  • Identification sending method, identification acquiring method, evolution base station, terminal and communication system
  • Identification sending method, identification acquiring method, evolution base station, terminal and communication system

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Embodiment Construction

[0032] The technical solutions of the embodiments of the present invention will be described in further detail below with reference to the drawings and embodiments.

[0033] For MBMS services, when transmitting on a physical channel, a physical layer pilot is required for channel estimation. Wherein, the physical layer adopts the following method (version 8.3.0 of the 36.211 protocol) when generating the pilot frequency:

[0034] r l , n s ( m ) = 1 2 ( 1 - 2 · c ( 2 m ) ) + j 1 2 ( 1 - 2 · c ...

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Abstract

The embodiment of the invention relates to an identification sending method, an identification acquiring method, an evolution base station, a terminal and a communication system. The identification sending method comprises the steps of: acquiring area identification of a multimedia broadcast single frequency network (MBSFN) and sending correlative information of the area identification to the terminal. The identification acquiring method comprises the steps of acquiring the correlative information of the area identification of the MBSFN, and acquiring the area identifications of the MBSFN according to the correlative information of the area mark. The embodiment of the invention ensures that user equipment (UE) can acquire the area identification through sending the correlative informationof the area identification, and pilot frequency can be decoded so that channel estimation can be performed.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to an identification sending and acquiring method, an evolved base station, a terminal and a communication system. Background technique [0002] Long Term Evolution (LTE) is the next-generation wireless communication standard being formulated by the Third Generation Partnership Project (3GPP), and its advantages are higher spectrum utilization, transmission speed, and lower transmission delay. . 3GPP divides downlink communication services into two categories: unicast services and multimedia broadcast multicast services (Multimedia Broadcast Multicast Service, MBMS), where unicast services refer to point-to-point data sent from a data source to a terminal (UE). MBMS refers to a data point-to-multipoint service sent by a data source to multiple UEs. The purpose of introducing MBMS is to realize network resource sharing. The network includes core network and wireless ac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/06H04W48/08H04W48/12
CPCH04W76/002H04W76/40
Inventor 余成文邢平平刘文济黄曲芳黄敏谢铂云
Owner HUAWEI TECH CO LTD
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