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1. 发明授权

US11272466B2 Maintaining time alignment with multiple uplink carriers 有权
公开(公告)号：US11272466B2
公开(公告)日：2022-03-08
申请号：US16595105
申请日：2019-10-07
申请人： InterDigital Patent Holdings, Inc.
发明人： Paul Marinier , Bhaskar M. Anepu , Ghyslain Pelletier , Robert L. Olesen
IPC分类号： H04B7/212 , H04W56/00 , H04L5/00 , H04L27/26 , H04W74/08
摘要： Maintaining time alignment with multiple carriers is contemplated. A group of uplink carriers (UL CC sets) that operate with a single Timing Advance (TA) may be determined, and a TA value may be applied to a specific UL CC set. A wireless transmit/receive unit's (WTRU) capability of using multiple TAs may define a group index of a few bits for each UL CC set. A TA Command received in a Random Access Response message may be used to apply the TA value to each UL carrier of the UL CC set. The WTRU may determine which UL CC set the TA value applies to based on which DL carrier the command was transmitted from. The WTRU may determine which UL CC set the TA value applies to based on the Group Index being explicitly provided in the command. The WTRU may release multi-CC configurations upon Time Alignment Timer (TAT) expiry.

2. 发明申请

US20200045659A1 MAINTAINING TIME ALIGNMENT WITH MULTIPLE UPLINK CARRIERS 审中-公开
公开(公告)号：US20200045659A1
公开(公告)日：2020-02-06
申请号：US16595105
申请日：2019-10-07
申请人： InterDigital Patent Holdings, Inc.
发明人： Paul Marinier , Bhaskar M. Anepu , Ghyslain Pelletier , Robert L. Olesen
IPC分类号： H04W56/00 , H04L5/00 , H04L27/26 , H04W74/08
摘要： Maintaining time alignment with multiple carriers is contemplated. A group of uplink carriers (UL CC sets) that operate with a single Timing Advance (TA) may be determined, and a TA value may be applied to a specific UL CC set. A wireless transmit/receive unit's (WTRU) capability of using multiple TAs may define a group index of a few bits for each UL CC set. A TA Command received in a Random Access Response message may be used to apply the TA value to each UL carrier of the UL CC set. The WTRU may determine which UL CC set the TA value applies to based on which DL carrier the command was transmitted from. The WTRU may determine which UL CC set the TA value applies to based on the Group Index being explicitly provided in the command. The WTRU may release multi-CC configurations upon Time Alignment Timer (TAT) expiry.

3. 发明授权

US10334626B2 Method and apparatus for supporting wideband and multiple bandwidth transmission protocols 有权
公开(公告)号：US10334626B2
公开(公告)日：2019-06-25
申请号：US15827957
申请日：2017-11-30
申请人： InterDigital Patent Holdings, Inc.
发明人： Bhaskar M. Anepu , Sudheer A. Grandhi , Xiaofei Wang
IPC分类号： H04W28/06 , H04W28/26 , H04W74/00 , H04W74/04 , H04W74/06 , H04W74/08 , H04W76/11 , H04W88/08
摘要： Enhanced protocols and devices may be used to alleviate loss of spectrum efficiency in wideband transmission. The protocols may implement a wideband transmission opportunity (TXOP) truncation where one or more of the channels involved in communication over the wideband are released. In one scenario, an access point (AP) may receive, from a wireless transmit receive unit (WTRU), a first CF-End frame that includes a duration field and a basic service set identifier (BSSID) field that includes an individual/group bit. On a condition that the individual/group bit of the BSSID field has a value of one (1), the AP may determine that a scrambling sequence of the first CF-End frame indicates a bandwidth associated with a transmit opportunity (TXOP) being truncated by the WTRU. The AP may then transmit a second CF-End frame at the bandwidth indicated by the scrambling sequence of the first CF-End frame.

4. 发明申请

US20220150856A1 MAINTAINING TIME ALIGNMENT WITH MULTIPLE UPLINK CARRIERS 有权
公开(公告)号：US20220150856A1
公开(公告)日：2022-05-12
申请号：US17579548
申请日：2022-01-19
申请人： InterDigital Patent Holdings, Inc.
发明人： Paul Marinier , Bhaskar M. Anepu , Ghyslain Pelletier , Robert L. Olesen
IPC分类号： H04W56/00 , H04L5/00 , H04L27/26 , H04W74/08
摘要： Maintaining time alignment with multiple carriers is contemplated. A group of uplink carriers (UL CC sets) that operate with a single Timing Advance (TA) may be determined, and a TA value may be applied to a specific UL CC set. A wireless transmit/receive unit's (WTRU) capability of using multiple TAs may define a group index of a few bits for each UL CC set. A TA Command received in a Random Access Response message may be used to apply the TA value to each UL carrier of the UL CC set. The WTRU may determine which UL CC set the TA value applies to based on which DL carrier the command was transmitted from. The WTRU may determine which UL CC set the TA value applies to based on the Group Index being explicitly provided in the command. The WTRU may release multi-CC configurations upon Time Alignment Timer (TAT) expiry.

5. 发明授权

US10477493B2 Maintaining time alignment with multiple uplink carriers 有权
公开(公告)号：US10477493B2
公开(公告)日：2019-11-12
申请号：US14580165
申请日：2014-12-22
申请人： INTERDIGITAL PATENT HOLDINGS, INC.
发明人： Paul Marinier , Bhaskar M. Anepu , Ghyslain Pelletier , Robert L. Olesen
IPC分类号： H04B7/212 , H04W56/00 , H04L5/00 , H04L27/26 , H04W74/08
摘要： Maintaining time alignment with multiple carriers is contemplated. A group of uplink carriers (UL CC sets) that operate with a single Timing Advance (TA) may be determined, and a TA value may be applied to a specific UL CC set. A wireless transmit/receive unit's (WTRU) capability of using multiple TAs may define a group index of a few bits for each UL CC set. A TA Command received in a Random Access Response message may be used to apply the TA value to each UL carrier of the UL CC set. The WTRU may determine which UL CC set the TA value applies to based on which DL carrier the command was transmitted from. The WTRU may determine which UL CC set the TA value applies to based on the Group Index being explicitly provided in the command. The WTRU may release multi-CC configurations upon Time Alignment Timer (TAT) expiry.

6. 发明申请

US20160295610A1 METHOD AND APPARATUS FOR SUPPORTING WIDEBAND AND MULTIPLE BANDWIDTH TRANSMISSION PROTOCOLS 审中-公开
标题翻译：用于支持宽带和多个带宽传输协议的方法和装置
公开(公告)号：US20160295610A1
公开(公告)日：2016-10-06
申请号：US15180231
申请日：2016-06-13
申请人： InterDigital Patent Holdings, Inc.
发明人： Sudheer A. Grandhi , Bhaskar M. Anepu , Xiaofei Wang
IPC分类号： H04W74/04 , H04W28/26 , H04W76/02 , H04W28/06
CPC分类号： H04W74/04 , H04W28/06 , H04W28/26 , H04W74/004 , H04W74/006 , H04W74/06 , H04W74/0808 , H04W74/0816 , H04W76/11 , H04W88/08
摘要： Enhanced protocols and devices may be used to alleviate loss of spectrum efficiency in wideband transmission. The protocols may implement a wideband transmission opportunity (TXOP) truncation where one or more of the channels involved in communication over the wideband are released. In one scenario, a wireless transmit/receive unit (WTRU) may obtain a TXOP for a 2 MHz bandwidth mode frame transmission with another device capable of operating in a 2 MHz bandwidth mode and a 1 MHz bandwidth mode. The WTRU may conduct a request-to-send (RTS)/clear-to-send (CTS) frame exchange in the second bandwidth mode, and truncate the TXOP by transmitting a contention free (CF)-End frame in the first and second bandwidth modes. In another scenario, an AP may obtain a TXOP for a 2 MHz bandwidth mode frame transmission with a WTRU capable of both 2 MHz and 1 MHz bandwidth modes.
摘要翻译：可以使用增强的协议和设备来减轻宽带传输中频谱效率的损失。协议可以实现宽带传输机会（TXOP）截断，其中涉及通过宽带通信的一个或多个信道被释放。在一种情况下，无线发射/接收单元（WTRU）可以与能够以2MHz带宽模式和1MHz带宽模式操作的另一设备获得用于2MHz带宽模式帧传输的TXOP。 WTRU可以在第二带宽模式中进行请求发送（RTS）/清除发送（CTS）帧交换，并且通过在第一和第二帧中发送无竞争（CF）-End帧来截断TXOP 带宽模式。在另一种情况下，AP可以获得具有能够兼容2MHz和1MHz带宽模式的WTRU的2MHz带宽模式帧传输的TXOP。

7. 发明申请

US20160150573A1 METHOD AND APPARATUS FOR OPTIMIZING UPLINK RANDOM ACCESS CHANNEL TRANSMISSION 审中-公开
标题翻译：用于优化上行随机访问信道传输的方法和装置
公开(公告)号：US20160150573A1
公开(公告)日：2016-05-26
申请号：US15012278
申请日：2016-02-01
申请人： InterDigital Patent Holdings, Inc.
发明人： Diana Pani , Sylvie Gomes , Bhaskar M. Anepu , Paul Marinier
IPC分类号： H04W74/08 , H04W4/00
CPC分类号： H04W74/0833 , H04W4/08 , H04W4/70 , H04W74/006
摘要： Method and apparatus are disclosed for optimizing Random Access Channel (RACH) transmissions from wireless transmit/receive units (WTRUs) for multiple transmissions. A WTRU may initiate uplink transmission for a random access procedure using a configured time resource such that the uplink resources may be time shared by a plurality of WTRUs. The transmission time may be calculated on an absolute or relative basis. A backoff time may be applied before starting the uplink transmission. The backoff time may be WTRU-specific, WTRU group-specific, specified per access class and may be determined based on a priority basis. A scaling factor may be applied to the backoff time. A contention free allocation method may be used to determine the appropriate resource. The data may be transmitted with and without a preamble. The WTRUs may include machine type communication devices and may be grouped in accordance with a number of factors or characteristics.
摘要翻译：公开了用于优化用于多个传输的无线发射/接收单元（WTRU）的随机接入信道（RACH）传输的方法和装置。 WTRU可以使用配置的时间资源来发起用于随机接入过程的上行链路传输，使得上行链路资源可以由多个WTRU进行时间共享。传输时间可以绝对地或相对地计算。可以在开始上行链路传输之前应用退避时间。退避时间可以是WTRU特定的，WTRU组特定的，每个访问类别指定的，并且可以基于优先级来确定。缩放因子可以应用于退避时间。可以使用无竞争分配方法来确定适当的资源。可以使用和不使用前置码来发送数据。 WTRU可以包括机器类型的通信设备，并且可以根据多个因素或特征进行分组。

8. 发明申请

US20210168860A1 METHOD AND APPARATUS FOR SUPPORTING WIDEBAND AND MULTIPLE BANDWIDTH TRANSMISSION PROTOCOLS 有权
公开(公告)号：US20210168860A1
公开(公告)日：2021-06-03
申请号：US17176737
申请日：2021-02-16
申请人： InterDigital Patent Holdings, Inc.
发明人： Bhaskar M. Anepu , Sudheer A. Grandhi , Xiaofei Wang
IPC分类号： H04W74/04 , H04W74/06 , H04W74/08 , H04W76/11 , H04W28/06 , H04W28/26
摘要： Enhanced protocols and devices may be used to alleviate loss of spectrum efficiency in wideband transmission. The protocols may implement a wideband transmission opportunity (TXOP) truncation where one or more of the channels involved in communication over the wideband are released. In one scenario, an access point (AP) may receive, from a wireless transmit receive unit (WTRU), a first CF-End frame that includes a duration field and a basic service set identifier (BSSID) field that includes an individual/group bit. On a condition that the individual/group bit of the BSSID field has a value of one (1), the AP may determine that a scrambling sequence of the first CF-End frame indicates a bandwidth associated with a transmit opportunity (TXOP) being truncated by the WTRU. The AP may then transmit a second CF-End frame at the bandwidth indicated by the scrambling sequence of the first CF-End frame.

9. 发明授权

US10925088B2 Method and apparatus for supporting wideband and multiple bandwidth transmission protocols 有权
公开(公告)号：US10925088B2
公开(公告)日：2021-02-16
申请号：US16449898
申请日：2019-06-24
申请人： InterDigital Patent Holdings, Inc.
发明人： Bhaskar M. Anepu , Sudheer A. Grandhi , Xiaofei Wang
IPC分类号： H04W74/04 , H04W74/06 , H04W74/08 , H04W76/11 , H04W28/06 , H04W28/26 , H04W74/00 , H04W88/08
摘要： Enhanced protocols and devices may be used to alleviate loss of spectrum efficiency in wideband transmission. The protocols may implement a wideband transmission opportunity (TXOP) truncation where one or more of the channels involved in communication over the wideband are released. In one scenario, an access point (AP) may receive, from a wireless transmit receive unit (WTRU), a first CF-End frame that includes a duration field and a basic service set identifier (BSSID) field that includes an individual/group bit. On a condition that the individual/group bit of the BSSID field has a value of one (1), the AP may determine that a scrambling sequence of the first CF-End frame indicates a bandwidth associated with a transmit opportunity (TXOP) being truncated by the WTRU. The AP may then transmit a second CF-End frame at the bandwidth indicated by the scrambling sequence of the first CF-End frame.

10. 发明申请

US20150103811A1 MAINTAINING TIME ALIGNMENT WITH MULTIPLE UPLINK CARRIERS 审中-公开
标题翻译：维护与多个UPLINK运营商的时间对齐
公开(公告)号：US20150103811A1
公开(公告)日：2015-04-16
申请号：US14580165
申请日：2014-12-22
申请人： INTERDIGITAL PATENT HOLDINGS, INC.
发明人： Paul Marinier , Bhaskar M. Anepu , Ghyslain Pelletier , Robert L. Olesen
IPC分类号： H04W56/00 , H04W74/08
CPC分类号： H04W56/0005 , H04L5/001 , H04L27/2646 , H04W56/0045 , H04W74/0833
摘要： Maintaining time alignment with multiple carriers is contemplated. A group of uplink carriers (UL CC sets) that operate with a single Timing Advance (TA) may be determined, and a TA value may be applied to a specific UL CC set. A wireless transmit/receive unit's (WTRU) capability of using multiple TAs may define a group index of a few bits for each UL CC set. A TA Command received in a Random Access Response message may be used to apply the TA value to each UL carrier of the UL CC set. The WTRU may determine which UL CC set the TA value applies to based on which DL carrier the command was transmitted from. The WTRU may determine which UL CC set the TA value applies to based on the Group Index being explicitly provided in the command. The WTRU may release multi-CC configurations upon Time Alignment Timer (TAT) expiry.
摘要翻译：考虑与多个载体维持时间对准。可以确定以单个定时提前（TA）操作的一组上行链路载波（UL CC集），并且可以将TA值应用于特定的UL CC集合。使用多个TA的无线发射/接收单元（WTRU）能力可以为每个UL CC集合定义几比特的组索引。可以使用在随机接入响应消息中接收的TA命令将TA值应用于UL CC集合的每个UL载波。 WTRU可以基于从哪个DL载波发送命令来确定哪个UL CC设置TA值适用于哪个DL载波。基于在命令中明确提供的组索引，WTRU可以确定应用TA值的哪个UL CC设置。当时间对准定时器（TAT）到期时，WTRU可以释放多CC配置。

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