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Configuration method and device of downlink scheduling information

一种调度信息、配置方法的技术，应用在通信领域，能够解决终端盲检次数增加、多盲检次数等问题

Active Publication Date: 2011-04-13
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This will directly lead to LTE-A terminals needing to support more blind detection times
At the same time, due to the introduction of carrier aggregation technology and the separate encoding of the control signaling of each carrier, the number of terminal blind detections will increase.
Therefore, controlling the number of blind detections is an issue under consideration

Method used

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  • Configuration method and device of downlink scheduling information
  • Configuration method and device of downlink scheduling information
  • Configuration method and device of downlink scheduling information

Examples

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Embodiment Construction

[0032] see image 3 As shown, a method for configuring downlink scheduling information provided by an embodiment of the present invention includes the following steps:

[0033] Step 301: the base station allocates a set of downlink carriers and a set of uplink carriers to a terminal sending a service request.

[0034] Here, the base station allocates a set of downlink carriers to the terminal according to the currently received channel quality information fed back by the terminal, the obtained type information of the terminal, and the service request of the terminal. The base station may allocate a set of uplink carriers to the terminal according to the received UE's uplink channel measurement result, the obtained terminal type information and the terminal's uplink service request. The base station may also directly allocate an uplink carrier set including one or more uplink subcarriers according to the obtained terminal type information and downlink service request.

[0035...

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Abstract

The invention discloses a configuration method and device of downlink scheduling information so as to control the time of blind detection in a multi-carrier system. The configuration method comprises the following steps of: allocating a downlink carrier set and an uplink carrier set for a terminal for sending a service request by a base station; and selecting at least a member carrier from the downlink carrier set as the member carrier of a PDCCH (Physical Downlink Control Channel) activation carrier set according to the bandwidth information of each carrier of the system, obtained type information of the terminal, currently received channel quality information fed back by the terminal, transmission modes distributed for each member carrier in the downlink carrier set and the uplink carrier set and a determined carrier scheduling mode of the terminal, wherein the time provided by PDCCH activation carrier set for PDCCH blind detection for uplink and downlink scheduling of the terminal is no more than that of the maximum blind detection of each sub-frame supported by the terminal in the type information of the terminal.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method, system and device for configuring downlink scheduling information. Background technique [0002] In the long-term evolution (LTE) system, the terminal (UE) needs to perform blind detection on the physical downlink control channel (PDCCH) of the common search space and the UE-specific search space at the same time, and the CCE aggregation level of the PDCCH can be 1, 2, 4, 8. Under each CCE aggregation level, the number of candidate PDCCHs requiring blind detection is different. Table 1 is the description of the candidate PDCCHs monitored by the UE in 9.1.1 of 3GPP TS36.213. See Table 1. [0003] [0004] Table 1 [0005] At the same time, for each transmission mode, two DCI formats need to be blindly detected. Different DCIs are distinguished by length. According to different aggregation levels at the user end, the DCI format (format) can be blindly ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04B7/26
CPCH04L5/0064H04L5/001H04L5/0094H04L5/0098H04L5/006H04W72/1205H04W24/10H04W72/0453H04L5/0053H04W72/54
Inventor 潘学明沈祖康肖国军
Owner DATANG MOBILE COMM EQUIP CO LTD
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