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Method for realizing multiplexing on code channel of multi-user data

A multi-user and data technology, applied in the field of data transmission, can solve problems such as low resource utilization, resource waste, and ineffective use of code channel resources

Active Publication Date: 2007-10-31
DATANG MOBILE COMM EQUIP CO LTD
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Problems solved by technology

[0013] To sum up, the method for multiplexing ACK / NACK messages of multiple UEs in the prior art uses two frequency spreading, which can only be used in the WTDD system, and the WTDD system is used to carry ACK / NACK messages in one code channel The number of bits is 244-276. This method only uses 240 bits, and the remaining 4-36 bits. Therefore, this scheme does not effectively use code channel resources, resulting in waste of resources and low resource utilization.

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  • Method for realizing multiplexing on code channel of multi-user data
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[0035] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0036] In order to improve resource utilization, the method of the present invention needs to set a group of orthogonal codes, and each orthogonal code corresponds to a UE, and the number of orthogonal codes should not be less than the number of UEs multiplexed at the same time; then use the corresponding The orthogonal code will spread the single-bit information to be sent for each UE, and then modulate the expanded single-bit information to be sent, and then superimpose all the spread and modulated single-bit information to complete multiplexing. Here, the bit message of the UE that needs to be multiplexed may be an ACK / NACK message sent for each UE to confirm whether the uplink data packet of the UE is received correctly.

[0037] Referring to shown in Figure 3...

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Abstract

The invention discloses a multiplexing method of multiple users data in code channel, the method includes: A. setting a group of orthogonal code, the number of the orthogonal code is not less than number of user terminal UE, and every UE is corresponding with a orthogonal code; B. using orthogonal code corresponding with every UE to expand the single bit information which is to be sent of every UE, the expended single bit information is modulated; C. all the single bit information which is expanded is added to accomplish the multiplexing. The method increases the agility of UE and base station, and reduces the waste of resource.

Description

technical field [0001] The invention relates to the technical field of data transmission, in particular to a method for realizing multiplexing of multi-user data on a code channel. Background technique [0002] High Speed ​​Uplink Packet Access (HSUPA) is a technology developed for the transmission of high-speed uplink data in the third generation mobile communication system, which can provide complete multimedia, video stream and other Internet protocol (IP) required by IMT2000. )business. One of the key technologies of HSUPA is hybrid automatic repeat request (HARQ) technology, which requires the sender to wait for the feedback message (ACK / NACK) sent back from the receiver after sending a data packet, and then, the sender determines whether to Retransmission of the data block is required. In one HSUPA transmission interval, multiple user terminals (UEs) may send uplink data to the base station (NodeB). Therefore, in one transmission interval, the NodeB needs to send fee...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04J13/02H04B7/26H04L12/56H04J13/18
Inventor 周海军胡金玲邢艳萍
Owner DATANG MOBILE COMM EQUIP CO LTD
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