A method implemented by an access node includes including transmitting, by the access node to a user equipment (UE), a control information message comprising an association indicator indicating an association between a reference signal and a channel between the access node and the UE; and communicating, by the access node with the UE, the reference signal in accordance with at least one channel parameter associated with the channel between the access node and the UE.

Embodiments of the present disclosure provide methods and apparatus for configuring downlink resource of search space. A method performed at a network node may comprise: determining (S101) a first search space for a first terminal device, and a second search space for a second terminal device; determining (S102) resources for a first downlink channel for the first terminal device in the first search space, and resources for a second downlink channel for the second terminal device in the second search space; and transmitting (S103) a first message on the first downlink channel, and a second message on the second downlink channel The determined resources for the first downlink channel at least partially overlap with the determined resources for the second downlink channel in time and/or frequency domain. The first terminal device and the second terminal device are scheduled with a manner of Multi-User Multiple-Input Multiple-Output, MU-MIMO.

Aspects of the present disclosure provide techniques configuring half-duplex UEs (HD-UEs) to implement supplementary uplink (SUL) in band combination that may be in same or different frequency range designations (e.g., FR1 or FR2) in both FDD and TDD without the benefit of a duplexer.

An apparatus such as a user equipment configured to support an irregular bandwidth signal. The apparatus comprising multiple means for frequency translating a wireless communication signal in a frequency bandwidth that is different to a predefined bandwidth and for filtering said frequency translated wireless communication signals. Means for adjusting a centre frequency used by the multiple means for frequency translating; and control means. The control means being responsive to receipt of a signal indicating a wireless communication network is currently supporting an irregular channel bandwidth, said irregular channel bandwidth covering two partially overlapping regular channel bandwidths each having said predefined bandwidth, to route a received wireless communication signal to each of the multiple means for frequency translating and to control the means for adjusting to set a respective centre frequency of the multiple means for frequency translating such that said centre frequency of each of the multiple means for frequency translating is offset with respect to each other

Provided in embodiments of the present disclosure are a wireless communication method, a terminal device, and a network device. Said method comprises: a terminal device selects, according to a HARQ process selection rule, a first HARQ process among a plurality of HARQ processes corresponding to a CG resource, and transmits data on the first HARQ process by means of the CG resource. A HARQ process can thereby be selected when there are a plurality of usable HARQ processes corresponding to a CG resource.

Provided are a method and an apparatus for a user equipment, which is allocated a plurality of serving cells, receiving acknowledgement/negative acknowledgement (ACK/NACK) in a wireless communication system. The method comprises: transmitting uplink data through a physical uplink shared channel (PUSCH); and receiving ACK/NACK with respect to the uplink through a physical hybrid-ARQ indicator channel (PHICH), wherein a serving cell that receives the ACK/NACK is selected from one or more serving cells, which the user equipment monitors to detect an uplink grant that schedules the PUSCH.

A method includes allocating, by a communications controller, a first set of resource blocks to an enhanced physical downlink shared channel (ePDSCH), where the ePDSCH has a first starting point and allocating, by the communications controller, a second set of resource blocks to an enhanced physical downlink control channel (ePDCCH). The method also includes identifying, by the communications controller, a second starting point for the ePDSCH, where the second starting point for the ePDSCH is located within a legacy control region, where the first starting point of the ePDCCH is located within the legacy control region, and where the second starting point of the ePDSCH is different than the first starting point of the ePDCCH. Additionally, the method includes signaling, by the communications controller to a user equipment (UE) the second starting point and a number of the second set of resource blocks allocated to the ePDSCH.

Methods, systems, and devices for wireless communication are described. Methods, systems, and devices provide for different tone spacing schemes for different channels. Methods, systems, and devices also provide for different tone spacing schemes for different stages of communication between a UE and a base station. The base station may indicate, to the UE, the tone spacing scheme in a control channel, a synchronization signal, or a reference signal and the tone spacing scheme may be selected by the base station from available tone spacing schemes for communication. Tone spacing schemes may also be referred to as numerologies.

A data transmission method, apparatus, and system, and user equipment are provided. The data transmission method may include determining configuration information of a first time unit in a radio time window, where the first time unit includes multiple sub-time units, a switching time period and a transmission time period are reserved in a first sub-time unit at an interval of at least N sub-time units in the first time unit, the switching time period is used to perform analog beam switching for a common channel and/or a common reference signal, and N is a natural number. The method also includes transmitting the common channel and/or the common reference signal in the first sub-time unit in the first time unit according to the configuration information of the first time unit, where the common channel and/or the common reference signal are/is transmitted in the transmission time period.

The present invention relates to a method for allocating communication resources in a multi-user cellular communication system, wherein communication resources are divided in time periods and frequency sub-bands, wherein part of the communication resources are used for frequency-localized communication channels, and part of the communication resources are used for frequency distributed channels. The method further comprises the steps of: classifying part of the frequency sub-bands as frequency sub-bands carrying frequency-distributed channels, classifying the remaining part of the frequency sub-bands as frequency sub-bands carrying frequency-localized channels. The present invention also relates to a system, a transmitter and a communication system.