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公开(公告)号：DE19955140A1
公开(公告)日：2000-09-28
申请号：DE19955140
申请日：1999-11-17
Applicant: MOTOROLA INC
Inventor： MARSAN MARK J , CHINITZ LEIGH M
Abstract: A radio communication system assigns use of a radio frequency communication resource comprising multiple communication channels in a way that minimizes the likelihood that a weakly received signal will be interfered with by a strongly received signal in an adjacent communication channel. The communication system determines a signal strength of a signal received from a user of the communication resource and, based on the signal strength determination, assigns the user one or more of the communication channels that are then available.
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公开(公告)号：AU3565599A
公开(公告)日：1999-11-08
申请号：AU3565599
申请日：1999-04-16
Applicant: MOTOROLA INC
Inventor： CHINITZ LEIGH M , NEEDHAM MICHAEL L , WILSON TIMOTHY J
Abstract: A controller (120), in response to receiving a request for a group call (201) targeting a group (101), allocates at least one power adjustment channel to the group call (202) and sends identification of the at least one power adjustment channel to at least some of the subscriber units in the group (203). Using the at least one power adjustment channel, the controller also sends unique power adjustment information to each of the at least some subscriber units (204). Unique power adjustment channel access information is also sent to the subscriber units so that each subscriber unit can receive its own unique power adjustment information (503) and adjust its inbound transmission power (504) in response. In this manner, efficient reverse power control is provided for multiple subscriber units thereby facilitating group calls in CDMA systems.
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公开(公告)号：BR0213294A
公开(公告)日：2004-10-26
申请号：BR0213294
申请日：2002-11-21
Applicant: MOTOROLA INC
Inventor： NEEDHAM MICHAEL L , WILSON TIMOTHY J , CHINITZ LEIGH M
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公开(公告)号：AU2002366838A1
公开(公告)日：2003-07-09
申请号：AU2002366838
申请日：2002-11-21
Applicant: MOTOROLA INC
Inventor： NEEDHAM MICHAEL L , WILSON TIMOTHY J , CHINITZ LEIGH M
Abstract: To address the need for an apparatus and method for CDMA-dispatch soft handoff, the present invention provides soft handoff to mobile stations (MSs) ( 120-123 ) in a dispatch call by sharing soft handoff information with all the MSs in the call at a base site ( 111 ). When a first MS (e.g., 120 ) needs to soft handoff, the identity of a soft handoff channel ( 135 ) at an adjacent base site ( 112 ) is shared with all the MSs. Thus, subsequent MSs (e.g. 122 ) that need to soft handoff to that adjacent base site may do so without requesting a soft handoff.
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公开(公告)号：BR9906379A
公开(公告)日：2000-07-11
申请号：BR9906379
申请日：1999-04-16
Applicant: MOTOROLA INC
Inventor： CHINITZ LEIGH M , NEEDHAM MICHAEL L , WILSON TIMOTHY J
Abstract: A controller (120), in response to receiving a request for a group call (201) targeting a group (101), allocates at least one power adjustment channel to the group call (202) and sends identification of the at least one power adjustment channel to at least some of the subscriber units in the group (203). Using the at least one power adjustment channel, the controller also sends unique power adjustment information to each of the at least some subscriber units (204). Unique power adjustment channel access information is also sent to the subscriber units so that each subscriber unit can receive its own unique power adjustment information (503) and adjust its inbound transmission power (504) in response. In this manner, efficient reverse power control is provided for multiple subscriber units thereby facilitating group calls in CDMA systems.
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Patent Agency Ranking
公开(公告)号：GB2345827B
公开(公告)日：2003-11-05
申请号：GB9927030
申请日：1999-11-17
Applicant: MOTOROLA INC
Inventor： MARSAN MARK J , CHINITZ LEIGH M
Abstract: A radio communication system assigns use of a radio frequency communication resource comprising multiple communication channels in a way that minimizes the likelihood that a weakly received signal will be interfered with by a strongly received signal in an adjacent communication channel. The communication system determines a signal strength of a signal received from a user of the communication resource and, based on the signal strength determination, assigns the user one or more of the communication channels that are then available.
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公开(公告)号：AU2002366835A1
公开(公告)日：2003-07-09
申请号：AU2002366835
申请日：2002-11-21
Applicant: MOTOROLA INC
Inventor： WILSON TIMOTHY J , CHINITZ LEIGH M , NEEDHAM MICHAEL L
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公开(公告)号：AU2002352837A1
公开(公告)日：2003-07-09
申请号：AU2002352837
申请日：2002-11-21
Applicant: MOTOROLA INC
Inventor： CHINITZ LEIGH M , NEEDHAM MICHAEL L , WILSON TIMOTHY J
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公开(公告)号：AU8678798A
公开(公告)日：1999-05-17
申请号：AU8678798
申请日：1998-07-31
Applicant: MOTOROLA INC
Inventor： CHINITZ LEIGH M , NEEDHAM MICHAEL L , WILSON TIMOTHY J
IPC: H04B7/216 , H04B7/26 , H04W4/06 , H04W4/14 , H04W72/04 , H04W84/08 , H04J13/00 , H04J3/02 , H04B7/185 , H04B7/19
Abstract: A quality dispatch service on a CDMA based wireless system (50). To achieve spectral efficiency and fast access for follow-up calls, in response to a request by a talkgroup member (A-D) to have a group call established, the non-requesting (listening-only) members (B-D) are allowed to establish a low-rate (non-voice) signaling link (54-56) in the reverse direction (inbound) for the limited purpose of (i) providing forward power control information to the fixed infrastructure; (ii) requesting soft hand-off when required; and (iii) maintaining the correct reverse link power control to allow for fast channel access for a follow-on call.
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公开(公告)号：WO03055245A9
公开(公告)日：2004-06-24
申请号：PCT/US0237336
申请日：2002-11-21
Applicant: MOTOROLA INC
Inventor： NEEDHAM MICHAEL L , WILSON TIMOTHY J , CHINITZ LEIGH M
Abstract: To address the need for an apparatus and method for CDMA-dispatch soft handoff, the present invention enables base-initiated soft handoff for dispatch calls. A mobile station (120) in a dispatch call establishes an individual inbound link (137) with the serving base site (111). The serving base site and one or more adjacent base sites (e.g., 110 and 112) determine the signal quality of the inbound link transmissions of the mobile station. The adjacent base site with the highest received inbound link signal quality is selected as the target soft handoff site. The serving base site then transmits the handoff information to enable the mobile station to begin a soft handoff with the target site.
Abstract translation: 为了解决用于CDMA调度软切换的装置和方法的需要，本发明实现了基站发起的用于调度呼叫的软切换。 调度呼叫中的移动站（120）与服务基站（111）建立单独的入站链路（137）。 服务基站点和一个或多个相邻基站（例如，110和112）确定移动站的入站链路传输的信号质量。 选择具有最高接收入站链路信号质量的相邻基站作为目标软切换站点。 服务基站然后发送越区切换信息，使得移动台能够与目标站点开始软切换。
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