Method and system for sending downlink data feedback information

A technology for feedback information and downlink data, applied in the field of mobile communication, can solve the problems of data packet loss, waste of transmission resources, unreliable base station scheduling, etc., to reduce the probability of packet loss and save scheduling resources.

CN107801245BActive Publication Date: 2021-07-02ZTE CORP

3 Cites 0 Cited by

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Patents(China)
Current Assignee / Owner: ZTE CORP
Publication Date: 2021-07-02

Smart Images

Figure 1
Figure 2
Figure 3

Patent Text Reader

Abstract

The present invention provides a method and system for sending downlink data feedback information. The method includes: a base station determines a scheduling situation that may cause feedback ambiguity when the downlink data feedback information is transmitted through a PUCCH channel; if the current scheduling situation belongs to a situation that may cause feedback ambiguity In the case of scheduling, the base station judges whether the UE is at the moment of feeding back the downlink data feedback information, and whether it has an uplink data scheduling request; The UE performs uplink scheduling authorization. If there is no uplink data scheduling request, the base station assigns a virtual uplink data scheduling request to the UE, and then performs uplink scheduling authorization to the UE; the base station performs uplink data scheduling for the UE according to the uplink data scheduling request or virtual uplink data scheduling request. The scheduling grant authorizes the UE to transmit downlink data feedback information through the PUSCH channel. Through the above method, it can be ensured that the base station correctly obtains the feedback information of the downlink scheduling.

Need to check novelty before this filing date? Find Prior Art

Description

Technical field

[0001] The present invention relates to the field of mobile communication technologies, and more particularly to a method and system of a downlink data feedback information. Background technique

[0002] At present, Long Term Evolution, LTE) communication system, after the base station transmits data to the user equipment (User Equipment, the UE), the user equipment needs to send the feedback information to the base station, the feedback message is the state of the base station transmission data. Indicates to facilitate the base station decision to continue to transmit new data (the data transmitted is correct) or retransmit the previously transmitted data (transmitted data errors). The user equipment sends a data feedback information to the base station, which can be passed through the PUCCH channel (Physical Uplinkshared Channel).

[0003] In the prior art, the feedback message of the downlink data is transmitted on the PUCCH channel or the PUSCH channel. It is ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

Login to View More