Method for switching a communications link to another channel (handover)
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H04Q-007/00
출원번호
US-0889179
(2000-01-10)
우선권정보
DE-199 01 004(1999-01-13)
국제출원번호
PCT/DE00/000063
(2000-01-10)
§371/§102 date
20010712
(20010712)
국제공개번호
WO00/042802
(2000-07-20)
발명자
/ 주소
Schindler,Juergen
Schulz,Egon
출원인 / 주소
Siemens Aktiengesellschaft
대리인 / 주소
Morrison &
인용정보
피인용 횟수 :
5인용 특허 :
12
초록▼
The invention relates to a method for switching a communications link to another channel (handover) in a digital cellular mobile radio systems and a mobile radio system, the time of the handover being determined by a decision algorithm. Roughly generalized, the changeover to a new channel can take p
The invention relates to a method for switching a communications link to another channel (handover) in a digital cellular mobile radio systems and a mobile radio system, the time of the handover being determined by a decision algorithm. Roughly generalized, the changeover to a new channel can take place between two radio systems or frequency bands within a radio system (external handover), between two radio cells within a cellular network (intercell handover) or within a radio cell (intracell handover). Each handover case, in turn, can include various type of handover.
대표청구항▼
What is claimed is: 1. A method for switching a communications link to another channel (handover) within or between mobile radio systems, comprising: splitting data to be transmitted into frames of identical length and interleaved; and determining a time of handover using a decision algorithm, wher
What is claimed is: 1. A method for switching a communications link to another channel (handover) within or between mobile radio systems, comprising: splitting data to be transmitted into frames of identical length and interleaved; and determining a time of handover using a decision algorithm, wherein the handover occurs after a complete frame has been transmitted, wherein a flag marks an interleaving depth to be considered in the handover and the handover is carried out at least partially based on the interleaving depth. 2. The method as claimed in claim 1, wherein the time of handover is determined by a network on the basis of the knowledge of the interleaving of the transmitted data. 3. The method as claimed in claim 1, wherein the time of handover is determined by a mobile station on the basis of the knowledge of the interleaving of the transmitted data. 4. The method as claimed in claim 1, wherein the flag is set for respective voice and data services. 5. The method as claimed in claim 1, wherein in the case of transmitted data in CDMA systems, the handover occurs after a complete frame has been transmitted. 6. The method as claimed in claim 1, wherein the frames are voice or data frames. 7. A method for switching a communications link to another channel (handover) within or between mobile radio systems, comprising: splitting data to be transmitted into frames of identical length and interleaved; and determining a time of handover using a decision algorithm, wherein the handover occurs after a complete frame has been transmitted, wherein during data transmissions in TDMA systems, handover occurs after transmission of a TDMA frame with a TDMA frame number wherein (TDMA frame number-starting TDMA frame number+1) modulo interleaving depth=0. 8. A method for switching a communications link to another channel (handover) within or between mobile radio systems, comprising: splitting data to be transmitted into frames of identical length and interleaved; and determining a time of handover using a decision algorithm, wherein in the case of voice links, a first data block of a voice frame is transmitted in an odd-numbered TDMA frame and the second data block of a voice frame is transmitted in an even-numbered TDMA frame and the handover is performed after an even-numbered TDMA frame has been transmitted. 9. A method for switching a communications link to another channel (handover) within or between mobile radio systems, comprising: splitting data to be transmitted into frames of identical length and interleaved; and determining a time of handover using a decision algorithm, wherein in the case of a transmission of a voice or data frame over n time slots, a first block of the voice frame is transmitted in an even-numbered TDMA frame and a second block of the voice or data frame is transmitted in an odd-numbered TDMA frame and the handover is performed after an odd-numbered TDMA frame has been transmitted. 10. A method for switching a communications link to another channel (handover) within or between mobile radio systems with packet access, comprising: determining a time of handover using a decision algorithm, wherein the handover occurs after a complete segment or a self-contained packet has been transmitted, and wherein during data transmissions in TDMA systems, handover occurs after transmission of a TDMA frame with a TDMA frame number wherein (TDMA frame number-starting TDMA frame number+1) modulo interleaving depth=0. 11. A digital cellular mobile radio system having a network and mobile stations, comprising: a device to switching a communications link to another channel (handover) which uses a decision algorithm with respect to a time of handover, the handover occurring after a complete voice or data frame has been transmitted, wherein during data transmissions in TDMA systems, handover occurs after transmission of a TDMA frame with a TDMA frame number wherein (TDMA frame number-starting TDMA frame number+1) modulo interleaving depth=0.
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이 특허에 인용된 특허 (12)
Billstrom Lars (Sonla SEX) Wetterborg Lars (Jarfalla SEX) Dahlin Steinar (Jarfalla SEX) Persson Bengt (Djursholm SEX), Apparatuses and mobile stations for providing packet data communication in digital TDMA cellular systems.
Malkamaki Esa (Espoo FIX) Jokinen Harri (Hiisi FIX), Method and apparatus providing handoff of a mobile station between base stations using parallel communication links esta.
Park, Sung Jun; Lee, Young Dae; Chun, Sung Duck; Jung, Myung Cheul, Method of transmitting and receiving radio access information in a wireless mobile communications system.
Park, Sung Jun; Lee, Young Dae; Chun, Sung Duck; Jung, Myung Cheul, Method of transmitting and receiving radio access information in a wireless mobile communications system.
Park, Sung Jun; Lee, Young Dae; Chun, Sung Duck; Jung, Myung Cheul, Method of transmitting and receiving radio access information in a wireless mobile communications system.
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