Abstract:
본 발명은 이동통신 시스템에서 사용자 트래픽 용량 측정 장치 및 방법에 관한 것이다. 제1 기지국에서 제2 기지국으로 핸드오버를 수행한 이동 단말에 대해 제2 기지국에 접속하여 사용한 트래픽의 양을 측정하고 분석할 수 있다. 이때, 이동통신 시스템의 형상을 변화시키지 않고도 기지국에서 방송되는 하향링크 내에 포함된 하향링크 MAP IE(Mobile Application Part Information Element)와 상향링크 MAP IE를 토대로 이동 단말의 기본 CID(Basic Connection ID)별로 할당된 정보를 이용하여, 각각의 가입자별 핸드오버를 수행한 이동 단말이 핸드오버된 기지국에서 사용되는 트래픽의 용량을 측정하고 분석할 수 있다. 트래픽, 측정, 분석, 단말 핸드오버
Abstract:
PURPOSE: A device and a method capable of providing continuity of multicast service are provided to minimize cut of the multicast service when inter-cell occurs on a sleep mode terminal receiving the multicast service. CONSTITUTION: A wireless bearer information receiver unit(310) periodically receives the wireless bearer information about the multicast service from the source base station and stores it. If the hand over occurs among the reception of the multicast service packet, a service support decision unit(320) decides the multicast service support of a target base station. In case the target base transceiver station supports the multicast service, a wireless bearer information setting unit(330) sets the wireless bearer information about the recently received multicast service.
Abstract:
A FA selection method for maximizing the performance of an uplink bandwidth request to a base station from a terminal and uplink bandwidth request method using the same are provided to minimize the loss of the message transmitting an uplink bandwidth request. A terminal extracts the value of NI as an uplink noise/interference level information element extracted by FA(Frequency Assignment)(S110). An RSSI(Received Signal Strength Indicator)/NI value is calculated based on the NI value corresponding to each FA about all FAs(S120). The terminal determines whether the paper in which it is necessary to have message transmission for an uplink band request(S130). The FA having the terminal is the calculated received signal strength indicator for each FA/NI value(S140).
Abstract:
A signal transmitting method and a signal receiving method are provided to increase a yield of a random access channel by restricting the access to the random access channel depending on the availability of the random access channel and reduce a data transmission delay by simplifying a bandwidth allocation process. A base station(10) broadcasts a field of a high speed RAC signal as 0 for an available random access channel. A mobile station(20) selects a random access preamble code corresponding to a requested length and MCS(Modulation Coding Scheme) level among random access preamble code set, and chooses one of the random access channels which has a field of a high speed RAC signal as 0. The mobile station transmits the selected preamble code and a random access message to the base station. If the base station is unable to receive the random access preamble code and the random access message, the base station broadcasts as a field of a high speed RAC signal as 0 without a random access response of a random access channel. When the mobile station receives the field of a high speed RAC signal as 0, performs a bandwidth request ranging procedure to transmit data or selects another random access channel to retransmit a random access data.
Abstract:
A method and an apparatus for initial access in a communication system are provided to select modulating and encoding methods and perform resource allocation properly according to the size of a data packet in an initial arbitrary access process, thereby improving efficiency in a use for wireless resources and reducing an access delay time. A method for initial access in a communication system comprises the following steps of: allowing an MS(Mobile Station)(100) to transmit an initial ranging signal to a BS(Base Station)(200) for attempting access to a network initially; allowing the BS to estimate a sub set, to which a code belongs, from the code included in the ranging signal(S120); allowing the BS to check a transmission power level used in the MS and the request bandwidth level of the MS(S130); allowing the BS to compare the transmission power level used in the MS with the receiving power level of the received code and estimate a transmission loss between the MS and the BS(S140); allowing the BS to determine modulating and coding methods used in the MS(S150); allowing the BS to determine a transmission method and uplink resources allocated to the MS and notify the MS of the determined transmission method and the uplink resources through a downlink MAP(Media Access Point)(S160); and allowing the MS to transmit a data packet to the BS by using uplink resources allocated by the determined transmission method(S170).
Abstract:
An apparatus and a method for measuring user traffic capacity in a mobile communication system are provided to analyze the amount of traffic which a mobile terminal has used after connecting to the second base station, in case the terminal completed handover to the second base station from the first base station. A frame receiving unit(161) receives a downlink frame broadcast from the second base station. Downlink/uplink mobile terminal identifier information extracting units(162,163) extract certain mobile terminal identifier information based on a downlink map information element and an uplink map information element included in the received downlink frame. A handover ID checking unit(167) checks whether a ranging response message broadcast from the second base station includes a handover ID indicating that the mobile terminal has performed handover. An information storage unit(164) stores the extracted mobile terminal identifier information and handover ID. A traffic calculating unit(165) calculates traffic capacity of the mobile terminal which has performed handover to the second base station.
Abstract:
An apparatus and a method for measuring user traffic capacity in a mobile communication system are provided to have the form of a simplified terminal so as to be easily used for any base stations. A map information element storage unit(111) receives downlink broadcast from a base station and stores information element about a downlink map and an uplink map which are included in the downlink. Downlink/uplink basic CID(Connection ID) information storage units(112,113) store basic CID based on the downlink map information element and the uplink map information element. Downlink/uplink basic CID and MAC(Media Access Control) address mapping/storing units(114,115) map a MAC address of a mobile terminal extracted based on a ranging response message broadcast through the basic CID and burst information included in the downlink broadcast from the base station, and store it. A ranging response message determining/receiving unit(117) determines whether there is an initial ranging response message transmitted from the base station, and if there is an initial ranging response message, the ranging response message determining/receiving unit(117) receives it. A traffic calculating unit(116) calculates the traffic capacity with respect to the mobile terminal based on the downlink/uplink basic CID and MAC address mapping/storing units(114,115).