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Transmission method and device for ascending scheduling assignment

A transmission method and user equipment technology, applied in the field of mobile wireless communication systems, can solve the problem of no frequency selective scheduling gain and the like

Inactive Publication Date: 2008-02-27
BEIJING SAMSUNG TELECOM R&D CENT +1
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  • Summary
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Problems solved by technology

[0017] Using the above method, the base station can flexibly send scheduling control signaling and HARQ control signaling for uplink resource allocation to multiple users. However, since the above method is used to transmit one or more The uplink scheduling control signaling of multiple users does not take advantage of the frequency selective scheduling gain between user equipment

Method used

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  • Transmission method and device for ascending scheduling assignment
  • Transmission method and device for ascending scheduling assignment
  • Transmission method and device for ascending scheduling assignment

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Embodiment

[0145] In order to illustrate the method of the invention, an example of the method of the invention is given below.

[0146] For the base station, when the base station decides to send an uplink scheduling assignment to a certain user at a certain moment, the base station will first determine whether there is currently downlink partial data transmission or downlink data transmission, if there is downlink partial data transmission or downlink data transmission , then the base station will transmit the uplink scheduling assignment control signaling on the specific subcarrier position on the time-frequency resource for transmitting downlink data or the localized time-frequency resource for downlink data.

[0147] According to method 1 proposed by the present invention, if there are downlink localized data transmission resources, then the uplink scheduling assignment control signaling will be transmitted on the localized resources, and if there are distributed data transmission re...

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Abstract

This invention relates to a transmitting method for control signaling assigned by up schedule including: a base station collocates a shared up scheduling assigned control channel and informs user equipment the collocated shared control channel to judge if the current down data transmission state meets the condition for transmitting the up scheduling assigned control signaling on the time frequency resource transmitting data, the base station transmits down scheduling assigned control signaling on some specified sub-carriers in the time frequency resources transmitting down data and receives up data transmitted by users on the scheduled up resources.

Description

technical field [0001] The present invention relates to a mobile wireless communication system, in particular to an uplink scheduling assignment transmission method in the wireless system. Background technique [0002] Now, the third generation partnership project (referred to as 3GPP) standardization organization has begun to carry out long-term evolution (LTE) of its existing system specifications. According to the current discussion about LTE, Orthogonal Frequency Division Multiplexing (OFDM) technology will be used as the downlink physical layer transmission technology in LTE, and single carrier frequency division multiple access (SC-FDMA for short) will be used as the uplink physical layer transmission technology in LTE. Layer transfer technology. [0003] OFDM technology is essentially a multi-carrier modulation communication technology. Its basic principle is to decompose a high-rate data stream into several low-rate data streams and transmit them simultaneously on a...

Claims

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Application Information

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IPC IPC(8): H04B7/005H04B7/26H04Q7/30H04Q7/38
Inventor 孙程君张玉建李小强李周镐
Owner BEIJING SAMSUNG TELECOM R&D CENT
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