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Method and system for demodulating uplink data channel in wideband code division multiple access system

A wideband code division multiple access and channel demodulation technology, which is applied in the field of uplink data channel demodulation of wideband code division multiple access systems, can solve problems such as inability to timely and dynamically schedule, and achieve the effect of solving system processing capabilities

Inactive Publication Date: 2011-06-08
ZTE CORP +1
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Problems solved by technology

[0005] In view of this, the present invention proposes a method and system for demodulating the uplink data channel of a wideband code division multiple access system, which can solve the contradiction between the bandwidth of transmission delay data and the system processing capacity, and the inability to dynamically schedule both aspects in time question

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  • Method and system for demodulating uplink data channel in wideband code division multiple access system

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Embodiment Construction

[0026] The basic idea of ​​the present invention is: take batch as the unit, group users according to the principle that multiple users belong to the same cell and have similar demodulation time; Group antenna data, each time slot is demodulated one by one according to the order of all users in the batch until all time slots in the current batch are demodulated.

[0027] The implementation of the technical solution will be further described in detail below in conjunction with the accompanying drawings.

[0028] The solution of the present invention is a task scheduling and chip-level processing solution based on the delayed data after interference cancellation of the NodeB uplink physical layer data channel in the WCDMA system in the wireless communication field. Aiming at solving the contradiction between the bandwidth of the transmission delay data and the system processing capacity in the prior art, and the problem that the two aspects cannot be dynamically scheduled in tim...

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Abstract

The invention discloses a method for demodulating an uplink data channel in a wideband code division multiple access system, comprising the following steps of: grouping users according to a principle that a plurality of users belong to an identical cell with similar demodulation time; and applying an identical group of antenna data for the plurality of users in batch by taking the batch as a unit during demodulation, and demodulating the time slots one by one according to a sequence of all the users in the batch until all the time slots in the current batch are demodulated. The invention also discloses a system for demodulating the uplink data channel in the wideband code division multiple access system. A demodulation unit is the system is used for demodulating the time slots one by one according to the sequence of all the users in the batch until all the time slots in the current batch are demodulated. By virtue of the method and the system disclosed by the invention, conflicts between bandwidth and processing capacity of delayed transmission data and the problem of incapability of timely and dynamically scheduling can be solved,.

Description

technical field [0001] The invention relates to the technology of data channel demodulation, in particular to a method and system for demodulating uplink data channel of Wideband Code Division Multiple Access (WCDMA) system. Background technique [0002] The emergence and use of 3G technology has improved the bandwidth and speed of wireless voice communication and data communication. As far as WCDMA technology in the 3G field is concerned, with the commercialization and further development of the WCDMA system and the continuous evolution of the protocol, the processing of the NodeB side of the base station The requirements for performance and precision are getting higher and higher, and the introduction of interference elimination technology provides a solution for NodeB side to improve processing performance and precision and reduce interference between channels. [0003] In the chip-level processing chip dedicated to the previous generation of products, the demodulation of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/12
Inventor 徐洪波
Owner ZTE CORP
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