Terminal equipment, network equipment, uplink sending method and uplink receiving method

A technology of terminal equipment and network equipment, which is applied to the separation device of transmission path, wireless communication, sub-channel allocation of transmission path, etc., and can solve the problems that the carrier does not send the uplink reference signal, and the information such as the downlink channel characteristics of the carrier cannot be obtained.

Active Publication Date: 2020-03-27
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0006] In view of this, a terminal device, a network device, an uplink sending method, and an uplink receiving method are provided, aiming at carrier aggregation scenarios, solving the problem of not sending uplink reference signals (such as SRS) on some carriers, resulting in the downlink channel characteristics of these carriers and other information unavailable problem

Method used

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  • Terminal equipment, network equipment, uplink sending method and uplink receiving method
  • Terminal equipment, network equipment, uplink sending method and uplink receiving method
  • Terminal equipment, network equipment, uplink sending method and uplink receiving method

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Embodiment Construction

[0192] Generally, in an LTE CA system, the number of simultaneous uplink carriers supported by a UE is limited. According to the characteristics of the limited uplink transmission capability, at the same time, in order to obtain the above-mentioned figure 2 For the downlink channel characteristics of the remaining three carriers, it may be considered to configure multiple uplink carriers for simultaneous transmission for the UE. The number of configured multiple uplink carriers exceeds the maximum number of simultaneous uplink carriers supported by the UE, and then the UE follows The SRS is sent on different uplink carriers in a time-division manner, so that the uplink transmission capability of the UE is not exceeded at the time of transmission, such as image 3 It is shown that at time 1, SRS is transmitted on carrier 1 and carrier 2; at time 2, SRS is transmitted on carrier 3 and carrier 4.

[0193] If no uplink data is sent on the uplink subframes of carrier 3 and carrie...

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Abstract

The present invention relates to wireless communication, in particular to a terminal device, a network device, an uplink sending method and a receiving method, aiming at the scenario of carrier aggregation, solving the problem that information such as downlink channel characteristics of a carrier without sending an uplink reference signal cannot be obtained. In a terminal device, the processing module selects one or more common carriers or special carriers from a first carrier set for an uplink subframe, and the first carrier set is a carrier used by the terminal device to send the first uplink subframe Composed of all carriers aggregated; and a sending module that abandons the sending of the uplink subframe on the one or more carriers; the special carrier is the carrier that the terminal device neither sends uplink data nor uplink control information in the uplink; the common carrier is the terminal The carrier used by the device to send uplink data and / or uplink control information. By giving up an uplink subframe on some carriers, the problem that information such as characteristics of downlink channels of carriers that do not send uplink reference signals cannot be obtained is solved.

Description

technical field [0001] The present invention relates to wireless communication technology, in particular to a terminal device, a network device, an uplink sending method and an uplink receiving method. Background technique [0002] During the evolution of the Long Term Evolution (LTE) protocol, the carrier aggregation (Carrier Aggregation, CA) technology was introduced in Release (R) 10, which allows the user equipment (User Equipment, UE) send and receive data. A network device such as an evolved NodeB (evolved NodeB, eNB) selects a cell as a primary cell (Primary Cell, Pcell) of the UE, and cells on other carriers are used as secondary cells (Secondary Cell, Scell) of the UE. A UE can send and receive data on the aggregated multiple cells. Here, the LTE system supporting CA is referred to as an LTE CA system. [0003] refer to figure 1 , in the LTE CA system, each UE corresponds to a Pcell, figure 1 In the cell 1 (Cell 1), and one or more Scells, figure 1 Including c...

Claims

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Application Information

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IPC IPC(8): H04W72/04
CPCH04W72/04H04L5/0007H04L5/1469H04L5/001H04L5/0051H04L5/0044H04L5/0053H04W72/21H04L5/0048H04L25/0226
Inventor 杨晓东张戬吕永霞权威
Owner HUAWEI TECH CO LTD
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