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Method, system and device for assigning response channel

A technology for channel and message assignment, applied in the communication field, can solve problems such as excessive overhead, and achieve the effects of reducing interference, reducing occupied resources, and reducing the amount of messages

Active Publication Date: 2011-11-23
XFUSION DIGITAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] Use the BS broadcast method to assign all MS resources. The broadcast content includes all assignment information. In order to consider the users with the worst channel environment, the broadcast message needs to use a low-order modulation and coding method, which makes the overhead too large.

Method used

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  • Method, system and device for assigning response channel
  • Method, system and device for assigning response channel

Examples

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Embodiment Construction

[0037] The invention provides a method, a system and a corresponding device for assigning a response channel, which reduce the amount of information sent in broadcast mode, so as to reduce the excessive overhead caused by broadcast mode assignment and the interference to neighboring cells.

[0038] In the embodiment of the method for assigning a response channel provided by the present invention, the BS uses the ID to scramble the assignment message and sends it to the MS; wherein, the unicast assignment message uses the MS ID for scrambling, and the multicast broadcast assignment message uses The multicast broadcast service ID is scrambled, and the group assignment message is scrambled using the group ID.

[0039] The MS descrambles the assignment message, and if the descrambling succeeds, the index of the terminal response channel is obtained through the position of the assignment message in all assignment messages; after receiving the assignment message, the MS can The desc...

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PUM

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Abstract

The invention discloses a method for assigning a response channel, and the method comprises the following steps of: sending an assigning message using mark scrambling to a terminal; obtaining the indeThe invention discloses a method for assigning a response channel, and the method comprises the following steps of: sending an assigning message using mark scrambling to a terminal; obtaining the index of the terminal response channel according to the position of the assigning message in all assigning messages so as to ensure the terminal to descramble the assigning message; and further obtainingx of the terminal response channel according to the position of the assigning message in all assigning messages so as to ensure the terminal to descramble the assigning message; and further obtainingthe position of the terminal response channel by the index of the response channel and the positions of time-frequency resource of all response channels. The invention also discloses a corresponding sthe position of the terminal response channel by the index of the response channel and the positions of time-frequency resource of all response channels. The invention also discloses a corresponding system, a base station and a terminal for assigning the response channel. By applying the invention, the dimension of broadcast messages can be reduced when the resource is assigned, and the communicatystem, a base station and a terminal for assigning the response channel. By applying the invention, the dimension of broadcast messages can be reduced when the resource is assigned, and the communication overhead and the interference to the neighborhood can also be reduced.ion overhead and the interference to the neighborhood can also be reduced.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method, system and device for assigning an acknowledgment (ACK, Acknowledgment) channel. Background technique [0002] Generally, a wireless communication system includes: a base station (BS, Base Station) and a terminal (MS, MobileStation). [0003] The BS and MS communicate through the air link. There is a BS-controlled communication method, that is, the BS assigns certain resources to the MS, and the MS analyzes the corresponding downlink data or sends the corresponding uplink data according to the resources assigned by the BS. data. Here, the downlink refers to the direction that the BS sends to the MS, and the uplink refers to the direction that the MS sends to the BS. [0004] In an Orthogonal Frequency Division Multiple Access (OFDMA, Orthogonal Frequency Division Multiplex Access) system, an Orthogonal Frequency Division Multiplexing (OFDM, Orthogonal F...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/04H04B7/26
Inventor 徐宏亮
Owner XFUSION DIGITAL TECH CO LTD
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