A cell configuration method, base station and terminal equipment
A technology for terminal equipment and cell configuration, which is applied in the field of communication and can solve the problems of high signaling overhead, high signaling overhead, and small coverage.
Active Publication Date: 2021-03-30
HUAWEI TECH CO LTD
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Problems solved by technology
However, the coverage of the SCell is very small. As the UE moves, the service quality of the UE's SCell will change rapidly. Therefore, the UE's SCell will be frequently configured or deconfigured, or the SCell will be frequently activated or activated after configuration. Deactivation, high signaling overhead
Moreover, when the deployment of small cells becomes denser and the number of carriers on which the UE performs CA operations exceeds 5 (up to 32), the signaling overhead of the RRC connection reconfiguration message used by the base station to configure the SCell is also relatively high , the number of bits occupied by the MAC CE used to activate or deactivate the SCell is also relatively large, for example, it can be 32 bits, which will also cause a large signaling overhead
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[0070] In order to facilitate understanding, some descriptions of concepts related to the present application are given by way of example for reference. As follows:
[0071] PCell: It is the cell where the terminal equipment performs the initial connection establishment, or the cell where the RRC connection is reestablished, or the primary cell designated during the handover (handover) process. PCell is responsible for RRC communication with terminal equipment.
[0072] SCell: It is a cell added during RRC reconfiguration to provide additional radio resources, and there is no RRC communication between the SCell and the terminal device. The PCell is determined during connection establishment, and the SCell is added / modified / released through the RRC connection reconfiguration (connection reconfiguration) message after the initial security activation procedure (initial security activation procedure).
[0073] Small (small) cells: low-power wireless access nodes, working in auth...
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Provided in embodiments of the present application are a cell configuration method, a base station and a terminal device, related to the communications field, and capable of decreasing terminal device secondary cell configuration and active time signaling overhead. The method is: a base station sending a first configuration message to a terminal device, the first configuration message comprising configuration information of at least one cell, configuration information of each cell comprising an index of the cell or an index of a cell group which the cell is a part of; the base station sending a second configuration message to the terminal device, the second configuration message comprising a number N of cell indexes or N cell group indexes, N being a positive integer greater than 1, and the second configuration message being used to indicate the terminal device, in at least one cell, setting configuration information of cells corresponding to the N cell indexes or the N cell group indexes as secondary cell configuration information of the terminal device. Embodiments of the present application may be used to configure a secondary cell (SCell) for a terminal device.
Description
technical field [0001] The present application relates to the communication field, and in particular to a cell configuration method, base station and terminal equipment. Background technique [0002] In order to meet the requirements of the Long Term Evolution-Advanced (LTE-A) downlink peak rate of 1Gbps and uplink peak rate of 500Mbps, it is necessary to provide a maximum transmission bandwidth of 100MHz, but due to the scarcity of continuous spectrum for this transmission bandwidth , LTE-A proposes a carrier aggregation (Carrier Aggregation, CA) solution. CA is to aggregate two or more component carriers (Component Carrier, CC) together to support a larger transmission bandwidth (up to 100MHz) .In fact, each CC corresponds to an independent cell (cell), and the maximum bandwidth of each CC is 20MHz. After configuring CA, the user equipment (User Equipment, UE) can simultaneously send and receive data with multiple cells. Therefore, the throughput of the UE can be improved...
Claims
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IPC IPC(8): H04W72/04
CPCH04W72/04
Inventor 李国荣张莉莉
Owner HUAWEI TECH CO LTD