Method and apparatus for transmitting downlink control signaling

A technology for controlling signaling and transmission methods, which is applied in the field of mobile wireless communication systems, and can solve problems such as base station transmission power exceeding the maximum transmission capacity, base station instantaneous power increase, etc.

Inactive Publication Date: 2007-10-31
BEIJING SAMSUNG TELECOM R&D CENT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Sending all user control signaling at the same time will cause the instantaneous power of the base station to increase, which may make the transmission power of the base station exceed its maximum transmission capability

Method used

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  • Method and apparatus for transmitting downlink control signaling
  • Method and apparatus for transmitting downlink control signaling
  • Method and apparatus for transmitting downlink control signaling

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0146] Embodiment 1: an embodiment corresponding to Method 1. The sending time of other control signaling except the resource indication control signaling is calculated according to the sequence number of the physical resource block allocated to the user. Assuming that a user is allocated multiple physical resource blocks, other control signaling except the resource indication control signaling is distributed and transmitted in each physical resource block.

[0147] Network operation:

[0148] First, the network receives a CQI (Channel Quality Indication) report;

[0149] The network determines the allocation of downlink physical resources according to the CQI report sent by the user terminal, and sends the allocation of downlink physical resources to the user terminal through the shared control channel.

[0150] Then, the network sends control signaling related to the resource indication;

[0151] Control signaling related to resource indication is used to indicate allocat...

Embodiment 2

[0167] Embodiment 2: an embodiment corresponding to method 1. The sending time of other control signaling except the resource indication control signaling is calculated according to the user sequence number in a subframe. Assuming that a user is allocated multiple physical resource blocks, other control signaling except the resource indication control signaling is distributed and transmitted only in the first allocated physical resource block.

[0168] Network operation:

[0169] First, the network receives a CQI (Channel Quality Indication) report;

[0170] The network determines the allocation of downlink physical resources according to the CQI report sent by the user terminal, and sends the allocation of downlink physical resources to the user terminal through the shared control channel.

[0171] Then, the network sends control signaling related to the resource indication;

[0172] Control signaling related to resource indication is used to indicate allocation of physica...

Embodiment 3

[0183] Embodiment 3: an embodiment corresponding to method 2. If a user is allocated multiple physical resource blocks, other control signaling except resource indication-related control signaling can be transmitted in one physical resource block.

[0184] Network operation:

[0185] First, the network receives a CQI (Channel Quality Indication) report;

[0186] The network determines the allocation of downlink physical resources according to the CQI report sent by the user terminal, and sends the allocation of downlink physical resources to the user terminal through the shared control channel.

[0187] Then, the network sends control signaling related to the resource indication;

[0188]Control signaling related to resource indication is used to indicate allocation of physical resources, including user identification code (UE-ID), user data transmission type whether localized or distributed transmission, and resource assignment (resource assignment). The format of the cont...

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Abstract

A kind of transmission method and equipment of down control command is disclosed, said method includes steps: UE sends CQI reporter; network sends the resource indicating relative control commands; network sends other control commands except the resource indicating relative control commands in the same physical resource block with user data, transmitting the other control commands except the resource indicating relative control commands centralized of the same user, transmitting the other control commands except the resource indicating relative control commands dispersed of different users. The invention transmits control command of the same user centralized in time, and control command of different users staggered in time to decrease the instance power of the base station when sends commands.

Description

technical field [0001] The present invention relates to a mobile wireless communication system, in particular to a method and equipment for transmitting downlink control signaling in an OFDM system. Background technique [0002] At present, the 3GPP (The 3rd Generation Partnership Project) standardization organization has begun to carry out long-term evolution (LTE-LongTerm Evolution) of its existing system specifications. Among the many physical layer transmission technologies, Orthogonal Frequency Division Multiplexing (OFDM-Orthogonal Frequency Division Multiplexing) technology has become a promising one among all downlink solutions due to its high spectrum utilization and low processing complexity. kind. [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 group of mutually orthogonal sub-carriers. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04J11/00
Inventor 朴相焕王婷李迎阳张玉建李小强李周镐
Owner BEIJING SAMSUNG TELECOM R&D CENT
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