Method, base station and user equipment for performing wireless communication in wireless communication system

Abstract

The invention relates to a method, a base station and user equipment for wireless communication in a wireless communication system. An electronic device for the user equipment includes a processor configured to execute computer instructions stored in the memory to execute: communicating directly with a base station on a primary component carrier and on at least one secondary component carrier; configuring a PUCCH on at least one auxiliary component carrier of at least one auxiliary component carrier in addition to configuring the PUCCH on the main component carrier based on the configuration information from the base station; in response to downlink transmission, transmitting HARQ feedback on the PUCCH of the secondary component carrier, wherein the processor is configured to obtain configuration information from radio resource control signaling from the base station; selecting the secondary component carrier according to an uplink transmission load on at least one secondary componentcarrier, wherein the processor is configured to conduct HARQ feedback corresponding to PDSCH transmission according to the feedback timing dynamically indicated by the DCI signaling scheduled by the PDSCH of the overlapped downlink subframes.

Description

[0001] This application is a divisional application of a Chinese patent application filed on January 28, 2014, with application number 201410042432.9, and the title of the invention is "Method, Base Station and User Equipment for Wireless Communication in a Wireless Communication System". technical field [0002] The present disclosure relates to the technical field of wireless communication, and in particular to a method, a base station, and a UE (User Equipment, user equipment) for performing wireless communication in a wireless communication system. Background technique [0003] This section provides background information related to the present disclosure which is not necessarily prior art. [0004] In the scenario of carrier aggregation in traditional base stations, PUCCH (Physical Uplink Control Channel, Physical Uplink Control Channel) can only be transmitted on the uplink main carrier, PUSCH (Physical Uplink Shared Channel, Physical Uplink Shared Channel) and SRS (Sou...

AI Technical Summary

Problems solved by technology

[0006] In particular, when a large number of small base stations are deployed and the small base stations and macro base stations are directly connected by optical fibers, the traditional method that only the main carrier can transmit PUCCH will have the following problems for the above three scenarios: 1) It cannot help the macro base station nodes to perform PUCCH offloading to reduce the burden on the uplink control channel of the macro cell, especially when the main carrier has fewer uplink time slots and the main carrier and the auxiliary carrier HARQ (Hybrid Automatic Repeat Request, Hybrid Automatic Repeat Request) RTT (Round-Trip Time, round-trip time ) in different situations (such as the situation where FDD cooperates with TDD but TDD is used as the main carrier, or the situation of TDD with different configurations, it is worth noting that TDD uplink subframes can only account for 60% of all subframes at most); 2) When the main carrier is a macro cell carrier, the energy consumption of uplink transmission is too high; and 3) when the main carrier is a TDD carrier and the number of uplink subframes is small, it is easy to cause high PUCCH feedback delay and retransmission of downlink data Delay, thus affecting the user's QoS (Quality of Service, quality of service) experience

Images