Abstract:
A repeated transmission method performed by a first communication node may comprise: repeatedly concatenating data to be transmitted to a second communication node by a preset first repetition number; performing channel coding on the concatenated data; generating first data having a resource unit size based on the channel-coded data; repeatedly outputting the first data by a preset second repetition number; and transmitting wireless signals generated according to the repeated output of the first data to the second communication node, wherein the first repetition number and the second repetition number are natural numbers.
Abstract:
Provided is a method for transmitting paging information in a cellular system. An object of the method is transmitting paging information which can improve applicability of a limited radio resource by variably and flexibly setting up and mapping a transport channel and a physical channel in order to transmit information notifying start of downlink information from a base station to a terminal in a cellular system for packet transmission. The method includes the steps of: forming a paging channel (PCH) in a transport channel corresponding to generation of paging information; setting a paging indication channel (PICH) based on the paging information and forming the paging indication channel in a radio resource of a physical layer; and allocating the paging channel to the radio resource of the physical layer.
Abstract:
A method for converting source data to a channel-modulated signal having a plurality of pairs of in-phase (I) and quadrature-phase (Q) data in a mobile station, wherein the mobile station uses at least one channel, includes the steps of: a) encoding the source data to generate at least one data part and a control part; b) generating at least one spreading code to be allocated to the channel, wherein each spreading code is selected on the basis of a data rate of the data part and the control part and spreading codes are selected so that two consecutive pairs of the I and Q data are correspondent to two points located on same point or symmetrical with respect to a zero point on a phase domain; and c) spreading the control part and the data part by using the spreading code, to thereby generate the channel-modulated signal.
Abstract:
A convergence network based on an identifier and a communication method using the same are provided. The convergence network based on the identifier includes an underlying network including a plurality of communication entities and an access router configured to separate IDs and locators of the communication entities; at least one domain network configured in an overlay form using the access router, and configured to have a different identifier based on a communication type or a service type; and a global name server GNS configured to register an identifier for identifying each of a communication entities and a domain network. The communication entities communicate over the at least one domain network using the identifier.
Abstract:
An operation method of a transmitting node in a communication system may comprise: generating 2N initial transmission bits by encoding N information bits to be transmitted to a receiving node of the communication system in a polar coding scheme; transmitting, to the receiving node, an initial transmission signal generated by modulating the 2N initial transmission bits; receiving, from the receiving node, a signal indicating that the initial transmission signal is not normally received; interleaving the N information bits through an interleaver to generate N interleaved bits; generating 2N first retransmission bits by encoding the N interleaved bits in the polar coding scheme; and transmitting, to the receiving node, a first retransmission signal generated by modulating the 2N first retransmission bits.
Abstract:
A method for converting source data to a channel-modulated signal having a plurality of pairs of in-phase (I) and quadrature-phase (Q) data in a mobile station, wherein the mobile station uses at least one channel, includes the steps of: a) encoding the source data to generate at least one data part and a control part; b) generating at least one spreading code to be allocated to the channel, wherein each spreading code is selected on the basis of a data rate of the data part and the control part and spreading codes are selected so that two consecutive pairs of the I and Q data are correspondent to two points located on same point or symmetrical with respect to a zero point on a phase domain; and c) spreading the control part and the data part by using the spreading code, to thereby generate the channel-modulated signal.
Abstract:
Disclosed is a technique for switching from a master node to a secondary node in a communication system. A method of a first communication node may comprise: adding the first communication node as a primary secondary cell (PSCell) to a second communication node through dual connectivity (DC); generating a first user plane path for smart dynamic switching (SDS) and a first instance for supporting the first user plane path according to a request from the second communication node; transmitting information on the first user plane path and the first instance to a terminal; receiving user data based on the first user plane path from the terminal as the first instance; and transmitting the user data to a core network using the first user plane path.
Abstract:
Disclosed are radio bearer management method and apparatus for multi-radio multi-connectivity. A method of a terminal may comprise: transmitting UP data to at least one node among an MN or SN through a first DRB; and in response to identifying a UL coverage loss in the second SN, determining switching from the first DRB to a second DRB based on a bearer switching rule.
Abstract:
A method of user equipment may comprise: determining whether an error condition for a first beam communicating with a base station is met; when it is determined that the error condition for the first beam is met, determining whether a first physical uplink control channel (PUCCH) allocated to the user equipment is present within a predetermined first period of time; when it is determined that the first PUCCH is not present, transmitting a sounding reference signal (SRS) transmission approval request and an identifier of the user equipment to the base station through a second PUCCH pre-configured to be shared by all pieces of user equipment; and when an SRS transmission approval is received from the base station, transmitting an SRS to the base station.
Abstract:
A method of a base station may comprise: detecting a beam failure for a terminal; in response to detecting the beam failure, transmitting a beam recovery early indicator (BREI) to the terminal based on a beam sweeping scheme; receiving a BREI response from the terminal; and identifying a preferred beam of the terminal based on reception of the BREI response.