公开(公告)号：CA2404580A1

公开(公告)日：2001-10-11

申请号：CA2404580

申请日：2001-04-02

Applicant: QUALCOMM INC

Inventor： HUGHES ROBBIN

IPC: H04B1/707 ,  H04W36/08 ,  H04W74/04 ,  H04Q7/38

Abstract: In a remote unit (50) of a slotted mode wireless communication system, the handoff performance is improved. Search parameters for a preferred base station, and a desired number of neighboring base stations, are passed to a search engine during a preparation period (46) of an active state (42) of th e remote unit prior to its assign slot. While in the preparation period (46), the search engine performs (70) searches and the controller evaluates the results. If one of the neighboring base stations' pilot signal is sufficient ly stronger than the preferred base station (74) then a handoff is performed, assigning (76) the neighboring base station as the preferred base station. T he handoff is completed before the remote unit enters its assigned slot (48).

公开(公告)号：CA2404297A1

公开(公告)日：2001-10-11

申请号：CA2404297

申请日：2001-03-30

Applicant: QUALCOMM INC

Inventor： BAYLEY GWAIN ,  AMERGA MESSAY ,  HUGHES ROBBIN

IPC: H04W48/20 ,  H04Q7/38 ,  H04B1/707

Abstract: A method and apparatus for improving searching in a remote unit of a slotted mode, wireless, communication system. In a slotted mode communication system, the remote unit enters an "active state" during its assigned slot. While in the active state, a controller in the remote unit passes selected sets of search parameters to a search engine. The order that the searches are performed is based on the measured signal strength and the age of the measurement. The search engine performs searches using the selected sets of search parameters. Searching continues as long as the remote unit is in the active state. When the remote unit enters the inactive state, searching ceases. While in the inactive state, the controller evaluates the results of the searches performed during the previous active state. During the next active state, the next sequence of searching is performed based on measured signal strength and the measurement age corresponding to the measurements made during the previous active state.

公开(公告)号：WO0176081A3

公开(公告)日：2002-03-21

申请号：PCT/US0110466

申请日：2001-03-30

Applicant: QUALCOMM INC

Inventor： HUGHES ROBBIN

IPC: H04W52/02 ,  H04W74/04 ,  H04B1/707

CPC classification number: H04W72/085 ,  H04W52/0245 ,  H04W74/04 ,  Y02D70/00

Abstract: A method and apparatus for improving search efficiency in a remote unit of a slotted mode, wireless communication system. In a slotted mode communication system the remote unit is in an "active state" only during its assigned slot. A controller in the remote unit passes (80) a selected set of search parameters to a search engine at the beginning of the assigned slot. The search engine performs a search (82), using the selected set of search parameters, and stores (84) the search results. The controller then immediately passes another set of search parameters to the search engine for the next search without evaluating the results of the just completed search. Searching continues as long as the remote unit is in its assigned slot (86). When the remote unit enters the inactive state (88) the controller evaluates the results of the searches performed during the active state. Evaluation of the search results provides a basis for the controller to generate new sets (72) of search parameters to be used during the next active state of the remote unit.

Abstract translation: 一种用于提高时隙模式的远程单元中的搜索效率的方法和装置，无线通信系统。 在时隙模式通信系统中，远程单元仅在其分配的时隙期间处于“活动状态”。 远程单元中的控制器将所选择的一组搜索参数传递到分配时隙开头的搜索引擎。 搜索引擎使用所选择的一组搜索参数来执行搜索（82），并存储（84）搜索结果。 然后，控制器立即将另一组搜索参数传递到搜索引擎进行下一次搜索，而不评估刚刚完成的搜索的结果。 只要远程单元位于其分配的插槽（86）中，搜索继续。 当远程单元进入非活动状态（88）时，控制器评估在活动状态期间执行的搜索结果。 搜索结果的评估为控制器生成在远程单元的下一活动状态期间要使用的搜索参数的新集合（72）提供了基础。

公开(公告)号：WO0103464A9

公开(公告)日：2002-12-05

申请号：PCT/US0018599

申请日：2000-07-06

Applicant: QUALCOMM INC

Inventor： ACHOUR BAAZIZ ,  HUGHES ROBBIN ,  USMANI FARRUKH ,  AHSAN SYED N

IPC: H04W36/14 ,  H04W48/18 ,  H04W88/06 ,  H04Q7/38

CPC classification number: H04W48/18 ,  H04W88/06

Abstract: A method to enhance performance of a dual-mode or dual-band mobile phone includes, after the phone has initially connected to a CDMA wireless network, monitoring (304) a level of total power received by the phone. This power level is compared (304) to a preset threshold level (C). If the power level remains below the threshold level for over two seconds (308, 312), the dual-mode or dual-band phone switches (314) to an AMPS or other network retrieved from the preferred roaming list that is stored in the phone. If the power level is above the threshold, the phone moves into the idle state (402). Once in the idle state, both the pilot strength and Received Signal Strength Indication are monitored (404). If both of these levels are below respective thresholds for over eight seconds (408, 412), the phone switches (414) to another network stored in the preferred roaming list. If the mobile phone is not a dual-mode or dual-band phone, the mobile phone can perform similar measurements and switch between service provider systems compatible with the mobile phone.

Abstract translation: 一种增强双模或双频移动电话性能的方法包括：在手机最初连接到CDMA无线网络之后，监测（304）电话接收的总功率水平。 将该功率电平（304）与预设阈值电平（C）进行比较。 如果功率电平保持低于阈值电平超过两秒钟（308,312），双模式或双频带电话交换机（314）到存储在电话中的优选漫游列表检索到的AMPS或其他网络 。 如果功率电平高于阈值，则电话进入空闲状态（402）。 一旦处于空闲状态，监控导频强度和接收信号强度指示（404）。 如果这两个级别都超过八秒以上的相应阈值（408,412），则电话机切换到存储在优选漫游列表中的另一网络。 如果移动电话不是双模式或双频手机，则手机可以执行类似的测量并在与移动电话兼容的服务提供商系统之间切换。

公开(公告)号：WO0176092A3

公开(公告)日：2002-05-02

申请号：PCT/US0110471

申请日：2001-03-30

Applicant: QUALCOMM INC

Inventor： BAYLEY GWAIN ,  HUGHES ROBBIN

IPC: H04B1/7075 ,  H04B17/00 ,  H04W48/20 ,  H04B7/02 ,  H04B1/707 ,  H04Q7/38

CPC classification number: H04W48/20 ,  H04B1/70752 ,  H04B17/318 ,  H04B17/382 ,  H04B2201/70701 ,  H04B2201/70702

Abstract: A method and apparatus for improving searching in a remote unit of a slotted mode, wireless, communication system. In a slotted mode communication system, the remote unit is in an "active state" during its assigned slot. While in the active state, a controller in the remote unit passes selected sets of search parameters to a search engine. The integration interval of the searches performed is based on the measured signal strength of another base station. The search engine performs searches using the integration interval. Searching continues as long as the remote unit is in the active state. When the remote unit enters the inactive state, searching ceases.

Abstract translation: 一种用于改进在时隙模式，无线，通信系统的远程单元中的搜索的方法和装置。 在时隙模式通信系统中，远程单元在其分配的时隙期间处于“活动状态”。 在处于活动状态时，远程单元中的控制器将所选择的一组搜索参数传递给搜索引擎。 执行的搜索的积分间隔基于另一基站的测量信号强度。 搜索引擎使用积分间隔执行搜索。 只要远程单元处于活动状态，搜索继续。 当远程单元进入非活动状态时，搜索停止。

公开(公告)号：WO0176311A3

公开(公告)日：2002-02-21

申请号：PCT/US0110468

申请日：2001-03-30

Applicant: QUALCOMM INC

Inventor： BAYLEY GWAIN ,  HUGHES ROBBIN ,  AMERGA MESSAY

IPC: H04W48/20 ,  H04Q7/38 ,  H04B1/707

CPC classification number: H04W48/20

Abstract: A method and apparatus for improving searching in a remote unit of a slotted mode, wireless, communication system. In a slotted mode communication system, the remote unit enters an "active state" during its assigned slot. While in the active state, a controller in the remote unit passes selected sets of search parameters to a search engine. The order that the searches are performed is based on the measured signal strength and the age of the measurement. The search engine performs searches using the selected sets of search parameters. Searching continues as long as the remote unit is in the active state. When the remote unit enters the inactive state, searching ceases. While in the inactive stage, the controller evaluates the results of the searches performed during the previous active state. During the next active state, the next sequence of searching is performed based on measured signal strength and the measurement age corresponding to the measurements made during the previous active state.

Abstract translation: 一种用于改进在时隙模式，无线，通信系统的远程单元中的搜索的方法和装置。 在时隙模式通信系统中，远程单元在其分配的时隙期间进入“活动状态”。 在处于活动状态时，远程单元中的控制器将所选择的一组搜索参数传递给搜索引擎。 执行搜索的顺序是基于测量的信号强度和测量的年龄。 搜索引擎使用所选择的搜索参数集执行搜索。 只要远程单元处于活动状态，搜索继续。 当远程单元进入非活动状态时，搜索停止。 在非活动阶段，控制器评估在先前激活状态下执行的搜索结果。 在下一活动状态期间，基于测量信号强度和对应于在先前活动状态期间进行的测量的测量年龄来执行下一个搜索序列。