Device and system for supporting multi-connection uplink scheduling information reporting
A technology for link scheduling and information reporting, applied in connection management, wireless communication, electrical components, etc., to solve problems such as inability to support multiple connections
Active Publication Date: 2014-11-12
ALCATEL LUCENT SHANGHAI BELL CO LTD +1
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[0008] Based on the above analysis, the existing buffer status reporting and scheduling request mechanism cannot support multiple connections (including dual connections)
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[0036] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0037] In the present invention, multi-connection means that one user equipment is connected to multiple base stations at the same time, and these base stations may all be macro base stations, all be small cell base stations, or a combination of both. For example, the user equipment is connected to two macro base stations at the same time, or the user equipment is connected to a macro base station and a small cell base station at the same time. Further, the small cell base station and the macro base station to which the user equipment is simultaneously connected may not have an affiliation relationship. For example, the user equipment is simultaneously connected to a macro base station and a small cell base station, and the small cell corresponding to the small cell base station is in a macro cell provided by another macro base station.
[0038] In the case ...
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One objective of the present invention is to provide uplink scheduling information reporting apparatus and System supporting multi-connectivity. Herein, a UE connected to multiple eNBs, the UE receives trigger configuration information about buffer status report of a logical channel group that a corresponding radio bearer belongs to, and radio bearer configuration information and uplink resource configuration information respectively corresponding to each of the multiple eNBs, when the BSR trigger condition of at least one of the multiple eNBs is satisfied, transmit to a corresponding eNB the buffer status report of the logical channel group that its corresponding radio bearer belongs to, so as to support uplink scheduling report in multi-connectivity. The reporting mechanism provides the serving eNB with information about data amount that can be transmitted in UL buffer of a UE, so as to support multi-connectivity, and enables macro cell to provide a better coverage of the control plane data and enables small cell to provide larger capacity.
Description
technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a technique for reporting uplink scheduling information supporting multiple connections. Background technique [0002] The deployment and enhancement of small cells has attracted a lot of attention due to the capacity improvement brought by low-power nodes such as small cells, picocell base stations, and femtocell base stations and to solve the problem of coverage blind spots. In 3GPP R12, a new research project "for E-UTRA (Evolved Universal Terrestrial Radio Access, Evolved Universal Terrestrial Radio Access) and E-UTRAN (Evolved Universal Terrestrial Radio Access Network, Evolved Universal Terrestrial Radio Access Small Cell Enhancements for E-UTRA and E-UTRAN-Higher-layer aspects (Small Cell Enhancements for E-UTRA and E-UTRAN-Higher-layer aspects)” was proposed, one of the important contents is to support the multi-connectivity (dual connectivity) to m...
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IPC IPC(8): H04W72/12
CPCH04W72/1284H04W88/06H04W76/16H04W72/21H04W24/10
Inventor 温萍萍邓云钱德瑞卡·沃拉尔杨涛
Owner ALCATEL LUCENT SHANGHAI BELL CO LTD