IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
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출원번호 |
US-0155941
(2011-06-08)
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등록번호 |
US-8885602
(2014-11-11)
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발명자
/ 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
0 인용 특허 :
9 |
초록
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Techniques for supporting handoff of a terminal between base stations of different protocol revisions (P_REVs) in a CDMA system. One technique includes performing a handoff of the terminal from a first base station to a second base station. The handoff is performed while the terminal is in an active
Techniques for supporting handoff of a terminal between base stations of different protocol revisions (P_REVs) in a CDMA system. One technique includes performing a handoff of the terminal from a first base station to a second base station. The handoff is performed while the terminal is in an active call using a first service configuration with the first base station. The first base station supports a first protocol revision and the second base station supports a second protocol revision that is later than the first protocol revision. A first message is sent indicative of a change in packet zone. A request is received to originate a new call with a second service configuration. The new call is maintained with the second service configuration between the terminal and the second base station.
대표청구항
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1. In a CDMA communication system, a method for supporting handoff of a terminal between base stations of different protocol revisions, comprising: performing a handoff of the terminal from a first base station to a second base station, wherein the handoff is performed while the terminal is in an ac
1. In a CDMA communication system, a method for supporting handoff of a terminal between base stations of different protocol revisions, comprising: performing a handoff of the terminal from a first base station to a second base station, wherein the handoff is performed while the terminal is in an active call using a first service configuration with the first base station, and wherein the first base station supports a first protocol revision and the second base station supports a second protocol revision that is later than the first protocol revision;sending a first message indicative of a change in packet zone;receiving a request to originate a new call with a second service configuration and a proposed service reference identifier, wherein a prior call was established at the terminal with the second service configuration that became dormant before the handoff, the prior call being associated with a service reference identifier different from the proposed service reference identifier; andmaintaining the new call with the second service configuration and the proposed service reference identifier between the terminal and the second base station. 2. The method of claim 1, wherein the first message is an In-Traffic System Parameters Message. 3. The method of claim 1, wherein the request is received via an Enhanced Origination Message. 4. The method of claim 1, wherein the first protocol revision corresponds to IS-95B or an earlier standard release (P_REV≦5) and the second protocol revision corresponds to IS-2000 Release 0 or a later standard release (P_REV≧6). 5. In a CDMA communication system, an apparatus for supporting handoff of a terminal between base stations of different protocol revisions, comprising: means for performing a handoff of the terminal from a first base station to a second base station, wherein the handoff is performed while the terminal is in an active call using a first service configuration with the first base station, and wherein the first base station supports a first protocol revision and the second base station supports a second protocol revision that is later than the first protocol revision;means for sending a first message indicative of a change in packet zone;means for receiving a request to originate a new call with a second service configuration and a proposed service reference identifier, wherein a prior call was established at the terminal with the second service configuration that became dormant before the handoff, the prior call being associated with a service reference identifier different from the proposed service reference identifier; andmeans for maintaining the new call with the second service configuration and the proposed service reference identifier between the terminal and the second base station. 6. The apparatus of claim 5, wherein the first message is an In-Traffic System Parameters Message. 7. The apparatus of claim 5, wherein the request is received via an Enhanced Origination Message. 8. The apparatus of claim 5, wherein the first protocol revision corresponds to IS-95B or an earlier standard release (P_REV≦5) and the second protocol revision corresponds to IS-2000 Release 0 or a later standard release (P_REV≧6). 9. A non-transitory computer-readable medium comprising instructions, which, when executed by a machine, cause the machine to perform operations for supporting handoff of a terminal between base stations of different protocol revisions, the instructions comprising: code for performing a handoff of the terminal from a first base station to a second base station, wherein the handoff is performed while the terminal is in an active call using a first service configuration with the first base station, and wherein the first base station supports a first protocol revision and the second base station supports a second protocol revision that is later than the first protocol revision;code for sending a first message indicative of a change in packet zone;code for receiving a request to originate a new call with a second service configuration and a proposed service reference identifier, wherein a prior call was established at the terminal with the second service configuration that became dormant before the handoff, the prior call being associated with a service reference identifier different from the proposed service reference identifier; andcode for maintaining the new call with the second service configuration and the proposed service reference identifier between the terminal and the second base station. 10. The non-transitory computer-readable medium of claim 9, wherein the first message is an In-Traffic System Parameters Message. 11. The non-transitory computer-readable medium of claim 9, wherein the request is received via an Enhanced Origination Message. 12. The non-transitory computer-readable medium of claim 9, wherein the first protocol revision corresponds to IS-95B or an earlier standard release (P_REV≦5) and the second protocol revision corresponds to IS-2000 Release 0 or a later standard release (P_REV≧6). 13. A call control processor in a CDMA communication system; configured to handoff a terminal between base stations of different protocol revisions, wherein the call control processor is configured to: perform a handoff of the terminal from a first base station to a second base station, wherein the handoff is performed while the terminal is in an active call using a first service configuration with the first base station, and wherein the first base station supports a first protocol revision and the second base station supports a second protocol revision that is later than the first protocol revision;send a first message indicative of a change in packet zone;receive a request to originate a new call with a second service configuration and a proposed service reference identifier, wherein a prior call was established at the terminal with the second service configuration that became dormant before the handoff, the prior call being associated with a service reference identifier different from the proposed service reference identifier; andmaintain the new call with the second service configuration and the proposed service reference identifier between the terminal and the second base station. 14. The call control processor of claim 13, wherein the first message is an In-Traffic System Parameters Message. 15. The call control processor of claim 13, wherein the request is received via an Enhanced Origination Message. 16. The call control processor of claim 13, wherein the first protocol revision corresponds to IS-95B or an earlier standard release (P_REV≦5) and the second protocol revision corresponds to IS-2000 Release 0or a later standard release (P_REV≧6).
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