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Method for duplicating channel

A channel duplication and channel technology, applied in radio/induction link selection and arrangement, broadcast service allocation, selection of devices, etc., can solve the problems of business data delay and power loss, increase complexity, signal repetition, etc., and achieve extra overhead Small, avoid the transmission of repeated business data, and achieve the effect of replication

Active Publication Date: 2007-06-20
HUAWEI TECH CO LTD
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Problems solved by technology

This solution will cause performance loss such as delay and power of business data, and when the frame offset (Frame Offset) configuration value is not zero, the delay deviation will be very serious, which may cause signal repetition or loss. ;The second solution is to correct the CFN by means of compensation calculation on the basis of the first solution, and recalculate the head CRC
In this way, the delay performance can be improved to a limited extent, but there is still a power loss, and it also increases the complexity of the implementation

Method used

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Embodiment Construction

[0026] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further elaborated below in conjunction with the accompanying drawings.

[0027] The core content of the present invention is: when the base station controller sends service data to the base station, the reference channel sends the normal data frame carrying the service data, and the non-reference channel sends the data frame that does not carry the service data and only includes the header; When the service data is copied, it is only necessary to copy the payload of the reference channel data frame carrying the service data to the payload of the non-reference channel data frame, update the format information of the non-reference channel payload, and recalculate the non-reference channel header CRC, and Leave the rest of the non-reference channel data frame unchanged. In this way, the replication of service data between channels by the base sta...

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Abstract

The method comprises: a) base station controller sends down the data frame carrying service data in reference channel, and sends down the data frame only including head part in one or more than one non reference channel; b) base station copies the service data of reference channel data frame and format information into the non reference channel data frame. The invention can be used in single point to multi point multimedia broadcast so as either to implement the copy of service data between channels or to avoid the repeated transmission of service data between base station controller and base station.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to a channel duplication method, in particular to a forward access channel (Forward Access Channel, FACH) duplication method. Background technique [0002] Multimedia broadcast and multicast (Multimedia Broadcast / Multicast Service, MBMS) service is a point-to-multipoint one-way multimedia service, which allows data to be sent from a single source entity to multiple receivers, using efficient wireless transfer methods Download the same data to multiple mobile users. Its main feature is that it can realize the long-term occupancy of the one-way downlink channel, and provide multimedia services to a large number of mobile users in a single-point to multi-point distribution mode. MBMS business will be widely used in the next generation (NGN) wireless network. [0003] In a Wideband Code Division Multiple Access (WCDMA) system, the implementation of MBMS services i...

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Application Information

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IPC IPC(8): H04Q7/38H04W4/06
Inventor 吴志坚周军
Owner HUAWEI TECH CO LTD
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