Method and apparatus for call setup
    151.
    发明授权
    Method and apparatus for call setup 有权
    呼叫建立方法和装置

    公开(公告)号:US07123923B2

    公开(公告)日:2006-10-17

    申请号:US10813478

    申请日:2004-03-30

    IPC分类号: H04B7/15

    CPC分类号: H04W72/085 H04W4/10 H04W76/45

    摘要: Channel assignment is performed by utilizing a base station controller (BSC) or a base station depending upon a mobile unit's RF environment and/or the type of call being made. By performing call setup in this manner, mobiles that access with no soft handoff requirement (approximately 50% of mobile in IS-2000 systems) will have faster setup times.

    摘要翻译: 通过根据移动单元的RF环境和/或正在进行的呼叫的类型利用基站控制器(BSC)或基站来执行信道分配。 通过以这种方式执行呼叫建立,无需软切换要求(大约在IS-2000系统中的移动设备的大约50%)访问的手机将具有更快的安装时间。

    Dynamic DCCH/FCH switching
    152.
    发明授权
    Dynamic DCCH/FCH switching 有权
    动态DCCH / FCH切换

    公开(公告)号:US07050411B2

    公开(公告)日:2006-05-23

    申请号:US09912995

    申请日:2001-07-25

    申请人: John M. Harris

    发明人: John M. Harris

    IPC分类号: H04B7/216

    摘要: In a code division multiple access (CDMA) system a dispatch call is established between two mobile units (10) and (12). The system includes a CDMA 2000 system providing for the dispatch data services. This requires that messages and bearer traffic are processed by radio link protocol. The CDMA 2000 system supports the FCH and DCCH channels. If the speaker's forward link is link limited, (26), then a DCCH channel is assigned to the speaker, (28). If the speaker's reverse link is link limited then a FCH channel is assigned to the speaker. In addition if there is a low battery level of the speaker, an FCH channel is assigned to the speaker, (30). When the speaker changes, (40), the FCH and DCCH channels for the speaker and listener are switched dynamically, (44–48).

    摘要翻译: 在码分多址(CDMA)系统中,在两个移动单元(10)和(12)之间建立调度呼叫。 该系统包括提供调度数据业务的CDMA 2000系统。 这要求消息和承载业务由无线链路协议处理。 CDMA 2000系统支持FCH和DCCH信道。 如果扬声器的前向链路被限制(26),那么DCCH信道被分配给扬声器,(28)。 如果扬声器的反向链路受到链路限制,则FCH信道被分配给扬声器。 另外如果扬声器的电池电量不足,则FCH通道被分配给扬声器(30)。 当扬声器变化时,(40),用于扬声器和收听者的FCH和DCCH信道被动态切换(44-48)。

    Audio overhang reduction by silent frame deletion in wireless calls
    153.
    发明授权
    Audio overhang reduction by silent frame deletion in wireless calls 失效
    无线呼叫中无声帧删除的音频突出减少

    公开(公告)号:US06999921B2

    公开(公告)日:2006-02-14

    申请号:US10017811

    申请日:2001-12-13

    IPC分类号: G10L11/02

    CPC分类号: G10L21/0364

    摘要: To address the need for reducing audio overhang in wireless communication systems (e.g., 100), the present invention provides for the deletion of silent frames before they are converted to audio by the listening devices. The present invention only provides for the deletion of a portion of the silent frames that make up a period of silence or low voice activity in the speaker's audio. Voice frames that make up periods of silence less than a given length of time are not deleted.

    摘要翻译: 为了解决在无线通信系统(例如,100)中减少音频突出的需要,本发明提供了在收听设备将其转换成音频之前删除无声帧。 本发明仅提供在扬声器的音频中删除构成静音或低声音活动时段的无声帧的一部分。 构成小于给定时间长度的沉默期的语音帧不会被删除。

    Temporary block flow allocation method
    154.
    发明授权
    Temporary block flow allocation method 有权
    临时块流分配方法

    公开(公告)号:US06973325B2

    公开(公告)日:2005-12-06

    申请号:US10671213

    申请日:2003-09-24

    IPC分类号: H04W4/10 H04W76/04 H04Q7/00

    摘要: For a push-to-talk function in a mobile communication system (30), an indication is received (35) by a user (50) that the talking floor is available. Next, an uplink temporary block flow is established (36). Prior to release of the uplink temporary block flow by the mobile communication system, a refresh message is sent (39) to hold the uplink temporary block flow. Downlink temporary block flows may also be refreshed by this method, or by the mobile communication system. Then the requesting user may enable the push-to-talk function. These techniques can improve talker arbitration and call setup delays for push-to-talk.

    摘要翻译: 对于移动通信系统(30)中的一键通功能,由用户(50)接收(35)指示楼层可用的指示。 接下来,建立上行链路临时块流程(36)。 在由移动通信系统释放上行链路临时块流之前,发送刷新消息(39)以保持上行临时块流。 下行链路临时块流也可以通过该方法或移动通信系统刷新。 然后请求用户可以启用一键通功能。 这些技术可以改善谈话者的仲裁和通话设置延迟进行一键通。

    Method for implementing a modified radio link protocol
    155.
    发明授权
    Method for implementing a modified radio link protocol 有权
    用于实现修改的无线电链路协议的方法

    公开(公告)号:US06941500B2

    公开(公告)日:2005-09-06

    申请号:US09928076

    申请日:2001-08-10

    IPC分类号: H04L1/16 H04L1/18

    摘要: A method of performing a modified RLP that reduces the transmission delay in a communications system by detecting frame erasures when they occur. The modified RLP method requests retransmission of erased frames based on pattern violations instead of sequence number violations. The method is preconditioned to expect a particular repeating pattern of frame delivery. For a system running a VSELP vocoder, the method in a receiving device expects to receive full rate or data (F) and DTX (D) frames in a repeating pattern FFDFFDFFD. For a system running an AMBE vocoder, the method in a receiving device expects to receive frames in a repeating pattern DFDFDFDD. The method detects when the pattern is violated and in desired instances immediately requests retransmission of the expected frame.

    摘要翻译: 执行经修改的RLP的方法,其通过在发生帧检测时检测帧擦除来减少通信系统中的传输延迟。 修改的RLP方法基于模式违规而不是序列号违规请求重发擦除的帧。 该方法被预处理以期望帧传送的特定重复模式。 对于运行VSELP声码器的系统,接收设备中的方法期望以重复码型FFDFFDFFD接收全速率或数据(F)和DTX(D)帧。 对于运行AMBE声码器的系统,接收设备中的方法期望以重复模式DFDFDFDD接收帧。 该方法检测何时违反模式,并且在期望的实例中立即请求重发预期的帧。

    Method and apparatus for transmitting voice information
    157.
    发明授权
    Method and apparatus for transmitting voice information 有权
    用于传输语音信息的方法和装置

    公开(公告)号:US06671518B2

    公开(公告)日:2003-12-30

    申请号:US10295123

    申请日:2002-11-15

    IPC分类号: H04B700

    摘要: A typical radio frame (300) comprises A, B, and C vocoded bits (304). At the end of each frame (300) A and B bits (305) are inserted from a previous frame. Thus, each frame not only comprises A, B, and C bits (304) for that frame, but also comprises those A and B bits (305) originally transmitted in a prior frame. Thus, each frame comprises high and low priority vocoded bits (304) from the current vocoder frame, and those higher priority bits from a preceding frame (305). By placing an inner CRC (302, 303) around the most important bits of the vocoded frame, even though a frame is erased (e.g. its outer CRC (301) failed) it can still be verified that the most important bits in the vocoded frame are correct. Since the class B and C bits can tolerate some errors, the vocoded frame can then play out if its inner CRC passes.

    摘要翻译: 典型的无线帧(300)包括A,B和C语音编码比特(304)。 在每个帧(300)的末尾,从前一帧插入A和B比特(305)。 因此,每个帧不仅包括用于该帧的A,B和C比特(304),而且包括原来在先前帧中发送的那些A和B比特(305)。 因此,每个帧包括来自当前声码器帧的高优先级和低优先级的声码比特(304),以及来自前一帧(305)的那些较高优先级比特。 通过在声码帧的最重要位周围放置内部CRC(302,303),即使帧被擦除(例如,其外部CRC(301)失败),仍然可以验证在声码帧中最重要的位 是正确的。 由于类B和C位可以容忍一些错误,所以如果其内部CRC通过,则声码帧可以播放。