Abstract:
Methods and apparatuses are provided for generating a Reference Signal (RS) in a communication system. At least one Physical Resource Block (PRB) is allocated for a User Equipment (UE). An RS sequence corresponding to an antenna port for the UE is mapped on the at least one PRB for the UE. The RS sequence corresponding to the antenna port for the UE is based on an initial sequence derived by an initialization value based on a Cell IDentifier (ID) and an index of the at least one PRB for the UE. The antenna port includes three RE groups in a PRB pair. One RE group includes two RE pairs. One RE pair includes two consecutiveOrthogonal Frequency Division Multiplexing (OFDM) symbols in a time domain and one subcarrier in a frequency domain.
Abstract:
An apparatus and a method for feeding back data receiving status, applied to a system, are provided. The method includes sequencing, by a User Equipment (UE), downlink subframes for transmitting data with respect to each Component Carrier (CC), generating receiving status feedback information for the first X downlink subframes with respect to each CC according to the result of the sequencing, where X≤M, wherein M is the number of downlink subframes on each CC, and transmitting the receiving status feedback information generated with respect to each CC to a base station. Accordingly, the UE will not misinterpret the receiving status for the downlink subframes due to inconsistencies with the base station between transmitting and receiving feedback. This affects the Hybrid Automatic Repeat Request (HARQ) transmission, saves the uplink overheads occupied by the receiving status feedback information, and increases the uplink coverage area.
Abstract:
Disclosed is a method for detachment of a mobile set including receiving, by a service node of a communication system, a detachment request from the mobile set, transmitting, by the service node of the communication system, a delete context request message for the mobile set to a first service node of another communication system, and transmitting, by the service node, a detachment indicator to a second service node of the another communication system, wherein the service node of the communication system is different from the service node of the another communication, wherein both the service node of the communication system and the first service node of the another communication system store context information related to the mobile set, and wherein the mobile set moves between the service node of the communication system and the first service node of the another communication system without an area updating.
Abstract:
Disclosed is a method for a multi-media broadcast/multicast service (MBMS) by a radio network controller (RNC), including generating a command for updating an MBMS notification indicator, the command including notification indicator information and a connection frame number, transmitting the command to a base station, and receiving a notification indicator starting at a time based on the connection frame number for a modification period if the modification period is included in the command, wherein the notification indicator information is used to generate the notification indicator.
Abstract:
A method and an apparatus for transmitting multimedia broadcast single-frequency network (MBSFN) subframe configuration information of neighboring cells in a wireless system is provided. The method comprises: transmitting, by a base station of a serving cell, MBSFN subframe configuration information of the serving cell to a UE which accepts services from the serving cell via a broadcast control channel (BCCH); transmitting information on a subset relationship of MBSFN subframe configurations of the neighboring cells relative to the MBSFN subframe configuration of the serving cell to the UE which accepts services from the serving cell via the broadcast control channel (BCCH); performing, by the UE, measurements on the neighboring cells according to the subframe configuration information of the serving cell and the information on the subset relationship of the MBSFN subframe configurations of the neighboring cells relative to the MBSFN subframe configuration of the serving cell.
Abstract:
A method and apparatus are provided for transmitting and receiving an uplink Sounding Reference Signal (SRS). The method includes receiving a sounding reference signal (SRS) configuration index; identifying an SRS periodicity and at least one offset based on the SRS configuration index; transmitting SRSs four times within a radio frame based on the at least one offset, if the SRS periodicity is 2 ms and an uplink-downlink (UL-DL) subframe configuration 0, 1, 2, or 6 is applied; and transmitting the SRSs twice within the radio frame based on the at least one offset, if the SRS periodicity is 2 ms and to the UL-DL subframe configuration 3, 4, or 5 is applied.
Abstract:
A method and apparatus are provided for transmitting and receiving an uplink Sounding Reference Signal (SRS). The method includes receiving a sounding reference signal (SRS) configuration index; identifying an SRS periodicity and at least one offset based on the SRS configuration index; determining a number of SRS transmissions in a radio frame based on an uplink-downlink (UL-DL) subframe configuration, if the SRS periodicity is 2 ms; and transmitting SRSs based on the determined number and the at least one offset.
Abstract:
Disclosed is a method for transmitting control information in a media access control-enhanced packet data unit (MAC-e PDU), including determining a data size of a transport format combination (TFC) selected by a user equipment (UE), including control information into the MAC-e PDU when a size of data and a header for the MAC-e PDU is shorter than the data size of the TFC, padding data of the MAC-e PDU with padding bits if a size of data including a corresponding header is shorter than the data size of the TFC, including the control information into the padding bits if the length of the padding bits is suitable for the transmission of the control information, and sending, by the UE, the MAC-e PDU including the control information to a node B.
Abstract:
A method and apparatus are provided for transmitting and receiving an uplink Sounding Reference Signal (SRS). The method includes receiving index information for a sounding reference signal (SRS); determining an SRS offset and an SRS period, based on the index information; and transmitting the SRS, based on the SRS offset and the SRS period. If the index information includes an integer from 0 to 9, the SRS is transmitted twice in a period of 5 ms. If the index information includes an integer from 10 to 644, the SRS period is selected among 5 ms, 10 ms, 20 ms, 40 ms, 80 ms, 160 ms, and 320 ms.
Abstract:
A method and apparatus are provided for transmitting and receiving an uplink Sounding Reference Signal (SRS). The method includes determining a number of single-carrier frequency division multiple access (SC-FDMA) symbols in an uplink pilot time slot (UpPTS); receiving index information for a sounding reference signal (SRS); determining an SRS offset, based on the index information; and transmitting the SRS, based on the SRS offset. If the index information includes an integer from 0 to 9, if the UpPTS includes two SC-FDMA symbols, a first symbol is indicated by SRS offset 0 and a second symbol is indicated by SRS offset 1, and if UpPTS includes one SC-FDMA symbol, the first symbol is indicated by the SRS offset 1. If the index information includes the integer from 0 to 9, the SRS offset indicated by the index information is based on: IndexOffset 00, 1 10, 2 21, 2 30, 3 41, 3 50, 4 61, 4 72, 3 82, 4 9 3, 4.