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Cross-carrier downlink control channel indicating method, system and evolution base station

A control channel and cross-carrier technology, which is applied in the system and evolved base station, and the field of cross-carrier downlink control channel indication, which can solve unspecified problems

Active Publication Date: 2011-05-25
CHINA MOBILE COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, it is not given how the program will be implemented

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  • Cross-carrier downlink control channel indicating method, system and evolution base station
  • Cross-carrier downlink control channel indicating method, system and evolution base station
  • Cross-carrier downlink control channel indicating method, system and evolution base station

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Embodiment Construction

[0083] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0084] figure 1 The flow chart of the cross-carrier downlink control channel indication method provided by Embodiment 1 of the present invention, as shown in figure 1 As shown, the specific steps are as follows:

[0085] Step 101: The evolved base station (eNB, Evolution Node Base) assigns a unique number to the carrier of each frequency point according to the frequency points of each carrier in the LTE-A system according to the preset number allocation rule, and broadcasts the allocation rule to All user equipment (UE, User Equipment) in the system.

[0086] The preset number allocation rule may be pre-configured on the eNB, or pre-agreed between the eNB and all UEs.

[0087] The carrier number can be represented by N (N is a non-negative integer) bit binary number.

[0088] in, is an upward rounding operator, and M is the nu...

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Abstract

The invention discloses a cross-carrier downlink control channel indicating method, a cross-carrier downlink control channel indicating system and a cross-carrier downlink control channel indicating evolution base station, which are applied to a 3GPP LTE-A system. To each user equipment (UE) adopting an aggregated carrier, an eNB distributes numbers for each carrier according to the preset carrier number distributive rule of the UE and a frequency point or a programmable communications interface (PCI) of each carrier centralized by the aggregated carrier of the UE; to each user equipment (UE) adopting the aggregated carrier, the eNB transmits the frequency point or the PCI of each carrier centralized by the aggregated carrier of the UE to the UE; the eNB transmits a downlink control signaling for a second carrier to a first UE on a first carrier, wherein the signaling contains the number of a second carrier; and the first UE receives the downlink control signaling, reads the number of the second carrier from the signaling, determines the frequency point or the PCI of the second carrier according to the number of the second carrier and carries out the content of the downlink control signaling on the second carrier corresponding to the frequency point or the PCI. By the method and through the system and the evolution base station, downlink control information of a plurality of carriers is transmitted on one carrier.

Description

technical field [0001] The present invention relates to the technical field of carrier aggregation, in particular to a cross-carrier downlink control channel indication method, system and evolved base station. Background technique [0002] 3rd Generation Partnership Project (3GPP, 3 rd The subsequent enhanced version of Generation Partnership Project (LTE, Long Term Evolution) is called LTE-Advanced (LTE-A for short), which introduces many new technologies, and carrier aggregation technology is the key to supporting higher bandwidth transmission Technology is also brought into it. The basic principle of carrier aggregation is to meet higher bandwidth requirements by aggregating two or more basic carriers together. After the carrier aggregation technology is introduced, the number of working carriers in a cell changes from one to multiple, forming a multi-carrier communication scenario. [0003] The downlink control channel is used to transmit downlink control signaling, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W48/10H04W48/12
Inventor 胡南胡臻平崔春风
Owner CHINA MOBILE COMM GRP CO LTD
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