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1.发明授权公开(公告)号：US06961572B2
公开(公告)日：2005-11-01
申请号：US10027465
申请日：2001-12-20
摘要： 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.
摘要翻译： 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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公开(公告)号：US06925309B2
公开(公告)日：2005-08-02
申请号：US10027193
申请日：2001-12-20
CPC分类号： H04W84/08
摘要： To address the need for an apparatus and method for quickly establishing a CDMA dispatch call, the present invention provides for paging mobile stations (e.g., 120-123) to inform them of the call and then starting the dispatch call without waiting for page responses from the call participants. The dispatch call is first transmitted by base sites (e.g., 110-112) of all the service coverage areas (e.g., 101-103) that may have call participants, and then discontinued at those base sites where no page responses are received within a period of time. Thus, the dispatch call is established while “call setup” effectively continues.
摘要翻译： 为了满足用于快速建立CDMA调度呼叫的装置和方法的需要，本发明提供寻呼移动台（例如，120-123）来通知他们该呼叫，然后开始调度呼叫，而不必等待来自 电话参与者。 调度呼叫首先由可能有呼叫参与者的所有服务覆盖区域（例如，101-103）的基站（例如，110-112）发送，然后在那些在 一段的时间。 因此，在“呼叫建立”有效地继续的情况下建立调度呼叫。
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3.发明授权Establishment of multiple low-rate inbound signaling links in CDMA dispatch system 失效在CDMA调度系统中建立多个低速率入站信令链路
公开(公告)号：US6115388A
公开(公告)日：2000-09-05
申请号：US959327
申请日：1997-10-28
CPC分类号： H04W84/08 , H04B7/264 , H04W72/005 , H04W76/02 , Y02B60/50
摘要： A quality dispatch service on a CDMA based wireless system. To achieve spectral efficiency and fast access for follow-up calls, in response to a request by a talkgroup member to have a group call established, the non-requesting (listening-only) members are allowed to establish a low-rate (non-voice) signaling link 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. In accordance with the illustrative embodiment, the establishment of low-rate inbound signaling links occurs prior to beginning the voice communications. Because a low-rate signaling link, as contemplated by the present invention, is a non-voice link which signals at a predetermined rate substantially less than that of a full-rate traffic link, proportionately less average power is required for dispatch communications than would otherwise be the case if full-rate traffic links were provided instead to non-talking talkgroup members. The present solution results in less interference to the CDMA system and thus substantially less impact on overall system capacity.
摘要翻译： 基于CDMA的无线系统的质量调度服务。 为了实现频谱效率和对后续呼叫的快速访问，响应于通话组成员要求建立群组呼叫的请求，允许不请求（只听）成员建立低速率（非易失性） 语音）信令链路，用于（i）向固定基础设施提供正向功率控制信息的有限目的（入站）; （ii）在需要时请求软交换; 和（iii）保持正确的反向链路功率控制以允许用于后续呼叫的快速信道接入。 根据说明性实施例，在开始语音通信之前发生低速率入站信令链路的建立。 因为本发明所设想的低速率信令链路是一个非语音链路，它以基本上小于全速率业务链路的预定速率发送信号，相比于调度通信所需的平均功率要小于 否则，如果提供全速率的流量链接，而不是非谈话的谈话组成员。 本解决方案导致对CDMA系统的干扰较少，因此对整个系统容量的影响较小。
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公开(公告)号：US5914958A
公开(公告)日：1999-06-22
申请号：US959152
申请日：1997-10-28
CPC分类号： H04W84/08 , H04B7/264 , H04W72/005 , H04W76/02 , Y02B60/50
摘要： A quality dispatch service on a CDMA based wireless system. To achieve spectral efficiency and fast access for follow-up calls, in response to a request by a talkgroup member to have a group call established, the non-requesting (listening-only) members are allowed to establish a low-rate (non-voice) signaling link 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. In accordance with the illustrative embodiment, the establishment of multiple inbound signaling links in a CDMA dispatch call occurs as a background process while beginning the voice communications immediately.
摘要翻译： 基于CDMA的无线系统的质量调度服务。 为了实现频谱效率和对后续呼叫的快速访问，响应于通话组成员要求建立群组呼叫的请求，允许不请求（只听）成员建立低速率（非易失性） 语音）信令链路，用于（i）向固定基础设施提供正向功率控制信息的有限目的（入站）; （ii）在需要时请求软交换; 和（iii）保持正确的反向链路功率控制以允许用于后续呼叫的快速信道接入。 根据说明性实施例，在CDMA调度呼叫中建立多个入站信令链路作为后台进程发生，同时立即开始语音通信。
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5.发明授权Method and apparatus for group calls in a wireless CDMA communication system 有权无线CDMA通信系统中用于组呼的方法和装置公开(公告)号：US06233461B1
公开(公告)日：2001-05-15
申请号：US09589246
申请日：2000-06-07
IPC分类号： H04B700
CPC分类号： H04W84/08 , H04B7/264 , H04W72/005 , H04W76/10 , Y02D70/449
摘要： 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.
摘要翻译： 控制器（120）响应于接收到针对组（101）的组呼（201）的请求，向组呼（202）分配至少一个功率调整信道，并发送至少一个功率调整 信道发送到组（203）中的至少一些用户单元。 使用所述至少一个功率调整信道，所述控制器还向所述至少一些用户单元（204）中的每一个发送独特的功率调整信息。 独特的功率调整信道接入信息也被发送到用户单元，使得每个用户单元可以接收其自己的唯一功率调整信息（503）并且响应地调整其入站发送功率（504）。 以这种方式，为多个用户单元提供有效的反向功率控制，从而便于CDMA系统中的群组呼叫。
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公开(公告)号：US06181685B2
公开(公告)日：2001-01-30
申请号：US09065314
申请日：1998-04-23
IPC分类号： H04B7216
CPC分类号： H04W52/247 , H04W4/06 , H04W52/146 , H04W84/08
摘要： 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：US07099290B2
公开(公告)日：2006-08-29
申请号：US10027488
申请日：2001-12-20
IPC分类号： H04Q7/00
摘要： 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.
摘要翻译： 为了满足对CDMA调度软切换的装置和方法的需要，本发明通过与呼叫中的所有MS共享软切换信息来提供在调度呼叫中的移动台（MS）（120-123）的软切换 基地（111）。 当第一MS（例如，120）需要软切换时，相邻基站（112）处的软切换信道（135）的身份与所有MS共享。 因此，需要到该相邻基站的软切换的后续MS（例如122）可以在不请求软越区切换的情况下进行。
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8.发明授权公开(公告)号：US06788941B2
公开(公告)日：2004-09-07
申请号：US10027041
申请日：2001-12-20
IPC分类号： H04Q720
摘要： To address the need for an apparatus and method for CDMA-dispatch soft handoff, the present invention enables mobile-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). When the mobile station determines that a handoff with an adjacent site (112) is needed, the mobile station uses its individual inbound link to request a soft handoff with the adjacent base site. After notifying the adjacent base site, the serving base site then transmits the handoff information to the mobile station to enable the mobile station to begin a soft handoff with the adjacent site.
摘要翻译： 为了解决用于CDMA调度软切换的装置和方法的需要，本发明使得移动发起的软切换用于调度呼叫。 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）。 当移动台确定需要与相邻站点（112）进行切换时，移动站使用其单独的入站链路来请求与相邻基站的软切换。 在通知相邻基站之后，服务基站然后将切换信息发送到移动站，以使得移动站能够与相邻站点开始软切换。
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公开(公告)号：US06801783B2
公开(公告)日：2004-10-05
申请号：US10027365
申请日：2001-12-20
IPC分类号： H04Q738
CPC分类号： H04W84/08
摘要： To address the need for a base site and method for quickly establishing a CDMA dispatch call, the present invention provides for signaling mobile stations (e.g., 120-123) to inform them of the call and then starting the dispatch call without waiting for the call participants to request their inbound links. The dispatch call is first transmitted by base sites (e.g., 110-112) of all the service coverage areas (e.g., 101-103) that may have call participants, and then discontinued at those base sites where no inbound link requests are received within a period of time. Thus, the dispatch call is established while “call setup” effectively continues.
摘要翻译： 为了满足用于快速建立CDMA调度呼叫的基站和方法的需要，本发明提供信令移动站（例如，120-123）来通知他们该呼叫，然后在不等待呼叫的情况下开始调度呼叫 参与者要求其入站链接。 调度呼叫首先由可能有呼叫参与者的所有服务覆盖区域（例如，101-103）的基站（例如，110-112）发送，然后在不在其中接收到入站链路请求的那些基站停止 一段时间。 因此，在“呼叫建立”有效地继续的情况下建立调度呼叫。
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10.发明授权公开(公告)号：US06188767B1
公开(公告)日：2001-02-13
申请号：US09069586
申请日：1998-04-29
IPC分类号： H04L932
CPC分类号： H04W4/06 , H04B7/2628
摘要： The present invention encompasses a base station and method of providing communication services to a plurality of communication units. The method includes the steps of sending communication information between the base station and at least two of the plurality of communication units. A first step of identifying communication units produces a group identifier. A scrambling code, based at least in part on the group identifier, is then used to encode the communication information for transmission.
摘要翻译： 本发明包括向多个通信单元提供通信服务的基站和方法。 该方法包括在基站与多个通信单元中的至少两个之间发送通信信息的步骤。 识别通信单元的第一步产生组标识符。 至少部分地基于组标识符的扰码被用于对通信信息进行编码以进行传输。
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