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Uplink/downlink scheduling information transmitting and receiving methods and device

A technology for scheduling information and sending methods, which is applied in the field of communication and can solve problems such as the inability to schedule the uplink and downlink of the second carrier

Active Publication Date: 2012-08-01
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a method for sending downlink scheduling information, a method for receiving downlink scheduling information, a method for sending uplink scheduling information, a method and device for receiving uplink scheduling information, to solve the problem of inability to aggregate carriers with different uplink and downlink configurations in the prior art. Defects of performing uplink and downlink scheduling on a second carrier that does not carry a PDCCH through a first carrier that carries a PDCCH

Method used

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  • Uplink/downlink scheduling information transmitting and receiving methods and device
  • Uplink/downlink scheduling information transmitting and receiving methods and device
  • Uplink/downlink scheduling information transmitting and receiving methods and device

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Embodiment Construction

[0111] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0112] Figure 1A It is a flow chart of Embodiment 1 of the method for sending downlink scheduling information provided by the present invention. Such as Figure 1A As shown, this embodiment includes:

[0113] Step 11: the base station determines a first downlink subframe among the downlink subframes on the second carrier, and the subframe o...

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Abstract

The invention provides uplink / downlink scheduling information transmitting and receiving methods and a device. The downlink scheduling information transmitting method includes determining a first downlink subframe in a downlink subframe on a second carrier, and defining a subframe at the moment, corresponding to that of the first downlink subframe, on a first carrier as an uplink subframe; transmitting downlink scheduling information corresponding to the first downlink subframe on the second carrier to a terminal on a fifth downlink subframe on the first carrier; and leading the moment corresponding to the fifth downlink subframe to be prior to the moment corresponding to the first downlink subframe. The uplink scheduling information transmitting method includes determining a first uplink subframe in an uplink subframe on the second carrier; transmitting uplink scheduling information corresponding to the first uplink subframe on the second carrier to the terminal on a sixth downlink subframe of the first carrier; and leading the moment corresponding to the sixth downlink subframe to be prior to that of the first uplink subframe. The purpose of uplink and downlink scheduling is realized by the aid of the first carrier and the second carrier which carry a PDCCH (physical downlink control channel).

Description

technical field [0001] Embodiments of the present invention relate to communication technologies, and in particular, to a method for sending downlink scheduling information, a method for receiving downlink scheduling information, a method for sending uplink scheduling information, a method and a device for receiving uplink scheduling information. Background technique [0002] In the LTE Release 8 (R8) system, the base station and the terminal communicate and transmit data on one carrier. The terminal scheduled by the base station may include its own physical downlink control channel (Physical Downlink Control Channel, PDCCH for short) in each subframe. The information carried in the PDCCH may be a downlink scheduling grant (Downlink_grant, referred to as DL_grant) or a downlink scheduling assignment (Downlink_Assignment, referred to as DL_Assignment), and the DL grant or DL_Assignment carries the time frequency indicating the physical downlink shared channel (Physical Downli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00H04L1/18H04W72/04H04W72/12
CPCH04L5/0037H04L5/0073H04W72/12H04W72/1289H04W72/1273H04W72/23H04W72/1268
Inventor 官磊刘文济
Owner HUAWEI TECH CO LTD
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