Carrier switching method, device and medium based on asymmetric uplink carrier aggregation
A carrier switching and carrier aggregation technology, applied in wireless communication, electrical components, etc., can solve the problems of unsuitable terminals, narrow application range of asymmetric uplink carrier aggregation technology, etc., and achieve the effect of expanding the application range
Active Publication Date: 2022-01-25
CHENGDU TD TECH LTD
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[0004] However, in most cases, the capability of the terminal only supports some uplink carriers, and it can only send data on one uplink carrier within a certain period of time. The method of sending data based on asymmetric uplink carrier aggregation technology in the prior art , it is not suitable for terminals with this capability, resulting in a narrow application range of asymmetric uplink carrier aggregation technology
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[0064] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with aspects of the invention as recited in the appended claims.
[0065] In the present invention, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.
[0066] ...
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The present invention provides a carrier switching method and device based on asymmetric uplink carrier aggregation. The method includes: after the base station determines that the accessed user equipment UE has an asymmetric uplink carrier aggregation capability, when the user equipment UE is in a handover scenario, judging whether the load of the uplink main carrier control channel of the target cell is high; The user equipment UE switches from the current uplink carrier of the current cell to the uplink secondary carrier of the target cell. In the handover scenario, when the control channel load of the uplink primary carrier of the target cell is high, the user equipment is directly handed over to the uplink secondary carrier of the target cell, which expands the application range of the asymmetric uplink carrier aggregation technology.
Description
technical field [0001] The present invention relates to wireless communication technology, in particular to a carrier switching method, device and medium based on asymmetric uplink carrier aggregation. Background technique [0002] In an existing Long Term Evolution (LTE for short) system, a single carrier supports a maximum system bandwidth of 20M. If a larger bandwidth is required, a carrier aggregation technology needs to be used. In the public network operator's network, the downlink service requirements are generally greater than the uplink service requirements, and the downlink carrier aggregation defined by 3GPP can better meet the operator's network. However, different from the requirements of ordinary public networks, in the wireless communication networks of some industries, there will be a large number of video surveillance services. At this time, the demand for uplink services is greater than that for downlink services. Symmetrical uplink carrier aggregation tec...
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IPC IPC(8): H04W36/00
CPCH04W36/0016H04W36/0088
Inventor 鲜柯徐绍君黄伟
Owner CHENGDU TD TECH LTD