In one embodiment, a method includes receiving SRS received from a plurality of UEs associated with the base station from an RU associated with the base station, estimating strengths or signal-to-noise ratios (SNRs) for pre-determined beams for each of the plurality of UEs based on the received SRS, selecting a subset of the plurality of UEs to which downlink data is to be transmitted for a RBG in a TTI based on the estimated strengths or SNRs of the pre-determined beams for the plurality of UEs, computing a precoding matrix for the RBG based on the selected subset, preparing multi-layered UE data for the RBG based on the selected subset and the computed precoding matrix, sending the multi-layered UE data and the precoding matrix for the RBG to the RU, where the RU transmits pre-coded multi-layered UE data to the UEs in the subset using MIMO technologies.

The present disclosure relates to a method for operating a first terminal in a wireless communication system, wherein the first terminal may transmit a beam scheduling request message to a second terminal. The beam scheduling request message includes transmission beam direction information of the first terminal and receiving beam schedule information of the first terminal, and the receiving beam schedule information of the first terminal may include at least one of receiving beam timing information of the first terminal and receiving resource pool information of the first terminal. In addition, the first terminal may receive a beam scheduling confirm message from the second terminal. The beam scheduling confirm message includes transmission beam direction information of the second terminal and receiving beam schedule information of the second terminal, and the receiving beam schedule information of the second terminal may include at least one of receiving beam timing information of the second terminal and receiving resource pool information of the second terminal. In addition, the first terminal may transmit data to the second terminal based on the beam scheduling confirm message.

A method for operating a wireless network node (10) in a wireless communication network (1) comprises providing (S10) at least one wireless communication device (20) with an indication of a set of reciprocity reference signals, RRS, to be used for scheduling request, SR, transmission. The method further comprises performing (S20) an estimation of an uplink channel on which a scheduling request, SR, is received from a wireless communication device (20), wherein the estimation of the uplink channel is based on an RRS comprised in the received SR.

Embodiments of the disclosure provide methods and apparatuses for managing a COMP set in a communication system employing an ASA scheme. According to the method, change information about an affected cell is received, wherein the change information uses an ASA frequency band and overlaps with a protected area of a primary system authorized with the ASA frequency band. The change information is then sent to a serving node coordinating transmission within constituent cells of a CoMP set, to indicate a change of the CoMP set, wherein the affected cell is one of the constituent cells of the CoMP set.

The disclosure relates to a communication technique for convergence of IoT technology and a pre-5.sup.th generation (5G) or 5G communication system for supporting higher data transmission rates beyond a 4.sup.th generation (4G) system such as long term evolution (LTE), and a system therefor. The disclosure is applicable to intelligent services (for example, smart homes, smart buildings, smart cities, smart cars or connected cars, healthcare, digital education, retail businesses, security and safety related services, etc.) based on 5G communication technology an IoT-related technology. According to various embodiments, a method and apparatus for transmitting or receiving multiple pieces of data in a wireless cooperative communication system may be provided.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may estimate, for each beam at one or more beam levels on one or more antenna panels, an application layer throughput based at least in part on a reference signal received power measurement, wherein the one or more beam levels are each associated with a number of antenna elements. The UE may generate a set of candidate beams that includes, at each of the one or more beam levels, one or more beams for which the respective estimated application layer throughput satisfies an application layer throughput requirement. The UE may select, from the set of candidate beams, a serving beam for which the estimated application layer throughput satisfies the application layer throughput requirement with a fewest number of antenna elements. Numerous other aspects are described.

Methods, systems, and devices for wireless communications are described. A base station may associate a first and second port with a set of antenna elements based on a first and second linear precoding vector. The base station may generate coefficients indicating a first combination and a second combination of a first data set for a first user equipment (UE) and a second data set for a second UE. The base station may apply the first and second linear precoding vectors to the first and second combinations, respectively, transmit a first demodulation reference signal (DMRS) and a second DMRS using a first comb corresponding to the first and second ports, and transmit at least a third DMRS indicating the coefficients using a second comb. The UEs may extract data from the precoded combinations by applying the coefficients and estimating channels associated with the first and second DMRS.

A method of achieving synchronization management of account information of a World Wide Web (WEB) interface in a multi-system Distributed Antenna System (DAS) is provided, including: a security verification initialization of the WEB interface when a single system device in the multi-system DAS is started, a current user information synchronization of a WEB interface between systems in the multi-system DAS, and a key book synchronization of WEB account information between the systems in the multi-system DAS. With the adoption of the method, synchronization management of the account information of the WEB interface in the multi-system DAS may be achieved, so that a management mode is simplified, and management efficiency is improved, information of a current WEB user is synchronized, integration of WEB user statuses and automatic login of multiple systems are achieved.

A method of achieving synchronization management of account information of a World Wide Web (WEB) interface in a multi-system Distributed Antenna System (DAS) is provided, including: a security verification initialization of the WEB interface when a single system device in the multi-system DAS is started, a current user information synchronization of a WEB interface between systems in the multi-system DAS, and a key book synchronization of WEB account information between the systems in the multi-system DAS. With the adoption of the method, synchronization management of the account information of the WEB interface in the multi-system DAS may be achieved, so that a management mode is simplified, and management efficiency is improved, information of a current WEB user is synchronized, integration of WEB user statuses and automatic login of multiple systems are achieved.

Systems and methods of transmitting a PPDU to or from a single user station (STA) in an MIMO transmission by using unequal MCSs. An access point (AP) allocates a plurality of spatial streams to the STA and assigned them into groups for the MIMO transmission. Multiple unequal MCSs are assigned to the different spatial stream groups. Correspondingly the STA ID is repeatedly specified in the user block fields of a SIG-B field of a downlink PPDU, or in the user information fields of a trigger frame. Alternatively, multiple AIDs of the STA can be specified in the user block fields or the user information fields instead of repeating the same STA ID. An indication may be inserted in the SIG-A field to indicate that the grouped-based unequal MCSs scheme is used for the MIMO transmission.