公开(公告)号：US09629035B1

公开(公告)日：2017-04-18

申请号：US14080566

申请日：2013-11-14

Applicant: Sprint Spectrum L.P.

Inventor： Jasinder P. Singh ,  Sachin R. Vargantwar ,  Manoj Shetty ,  Bhagwan Khanka

IPC: H04W36/00

CPC classification number: H04W36/0055 ,  H04W8/26 ,  H04W36/0066 ,  H04W48/20

Abstract: An access terminal establishes a session with a first radio access network (RAN). As a result, the access terminal receives a Unicast Access Terminal Identifier (UATI) assigned by the first RAN and establishes configuration settings for radio communications between the access terminal and the first RAN. The access terminal moves from the first RAN to a second RAN. Before the access terminal has a session established with the second RAN, the access terminal receives a request from a user to originate a call. In response, the access terminal sends the second RAN a connection request that includes the UATI assigned by the first RAN. The second RAN evaluates the UATI included in the connection request and determines that it was previously assigned to the access terminal by another RAN. Based on this determination, the second RAN grants the connection request by assigning a traffic channel to the access terminal.

公开(公告)号：US09948428B2

公开(公告)日：2018-04-17

申请号：US15204552

申请日：2016-07-07

Applicant: Sprint Spectrum L.P.

Inventor： Hemanth B. Pawar ,  Shilpa Kowdley Srinivas ,  Anoop K. Goyal ,  Bhagwan Khanka ,  Duane Anthony Tomka

IPC: H04W4/00 ,  H04L1/16 ,  H04L1/18 ,  H04L29/12 ,  H04L1/00 ,  H04W84/04

CPC classification number: H04L1/1628 ,  H04L1/1607 ,  H04L1/1692 ,  H04L1/1812 ,  H04L61/6022 ,  H04L2001/0093 ,  H04W84/042

Abstract: Methods and systems are disclosed that support the aggregation of acknowledgement messages and control messages. Advantageously, acknowledgement and negative acknowledgement indications for multiple client nodes are combined into a single aggregated message which is broadcast or multicast to the multiple client nodes. Based on unique identifiers assigned to each client node, client nodes are grouped such that the aggregated acknowledgement messages can be efficiently encoded to conserve both network capacity when they are transmitted, as well as processing capacity when they are parsed by the client nodes. If code division multiple access (CDMA) technology is used, the aggregated acknowledgment message can be transmitted without CDMA spreading to effectively broadcast or multicast it to multiple client nodes. A similar technique can be employed for the efficient broadcast or multicast of aggregated control messages.

公开(公告)号：US09544875B1

公开(公告)日：2017-01-10

申请号：US14089137

申请日：2013-11-25

Applicant: Sprint Spectrum L.P.

Inventor： Jasinder P. Singh ,  Sachin R. Vargantwar ,  Bhagwan Khanka ,  Maulik K. Shah

IPC: H04W68/00 ,  H04W68/02 ,  H04W36/00

CPC classification number: H04W68/02 ,  H04W36/0055 ,  H04W68/00 ,  H04W74/00

Abstract: Disclosed is a method and system to manage paging channels in a wireless communication network. When the network encounters a situation where the network is to transmit an access response message in a coverage area to a mobile station, the network will determine whether the mobile station is in an access handoff state. If not, the network will transmit the message to the mobile station on a paging channel selected based on the mobile station's identifier. Otherwise, the network will transmit the message to the mobile station on both that paging channel and a default paging channel (e.g., primary channel) selected without consideration of the mobile station's identifier. This process can help avoid an access handoff failure. Further, a radio access network may opt to use the default paging channel in response to the wireless coverage area having a different number of paging channels than an adjacent coverage area.

Abstract translation: 公开了一种在无线通信网络中管理寻呼信道的方法和系统。 当网络遇到网络要向覆盖区域发送接入响应消息的情况时，网络将确定移动站是否处于接入切换状态。 如果不是，网络将基于移动台的标识符选择的寻呼信道将消息发送到移动台。 否则，在不考虑移动台的标识符的情况下，网络将在该寻呼信道和默认寻呼信道（例如，主信道）两者上向移动台发送消息。 此过程可以帮助避免访问切换失败。 此外，无线电接入网络可以响应于具有与相邻覆盖区域不同数量的寻呼信道的无线覆盖区域，可以选择使用默认寻呼信道。

公开(公告)号：US20160359588A1

公开(公告)日：2016-12-08

申请号：US15204552

申请日：2016-07-07

Applicant: Sprint Spectrum L.P.

Inventor： Hemanth B. Pawar ,  Shilpa Kowdley Srinivas ,  Anoop K. Goyal ,  Bhagwan Khanka ,  Duane Anthony Tomka

IPC: H04L1/16 ,  H04L1/18 ,  H04L29/12

CPC classification number: H04L1/1628 ,  H04L1/1607 ,  H04L1/1692 ,  H04L1/1812 ,  H04L61/6022 ,  H04L2001/0093 ,  H04W84/042

Abstract: Methods and systems are disclosed that support the aggregation of acknowledgement messages and control messages. Advantageously, acknowledgement and negative acknowledgement indications for multiple client nodes are combined into a single aggregated message which is broadcast or multicast to the multiple client nodes. Based on unique identifiers assigned to each client node, client nodes are grouped such that the aggregated acknowledgement messages can be efficiently encoded to conserve both network capacity when they are transmitted, as well as processing capacity when they are parsed by the client nodes. If code division multiple access (CDMA) technology is used, the aggregated acknowledgment message can be transmitted without CDMA spreading to effectively broadcast or multicast it to multiple client nodes. A similar technique can be employed for the efficient broadcast or multicast of aggregated control messages.

公开(公告)号：US08738009B1

公开(公告)日：2014-05-27

申请号：US13840101

申请日：2013-03-15

Applicant: Sprint Spectrum L.P.

Inventor： Bhagwan Khanka ,  Anoop K. Goyal ,  Hemanth Balaji Pawar ,  Shilpa Kowdley Srinivas

IPC: H04W36/00

CPC classification number: H04W36/18 ,  H04L5/0035

Abstract: A mobile station receives forward link signals and transmits reverse link signals for a communication session conducted via a wireless network. A controller maintains a reverse-active set that defines which sectors of the wireless network are used to receive the reverse link signals. When the mobile station transmits a request signal requesting the communication session, the controller may create the reverse-active set to include the sector that received the request signal with the highest signal strength. During the communication session, the signal strengths of the reverse link signals may be monitored in each of a plurality of sectors to obtain reverse-link signal strengths. The controller may maintain the reverse-active set based on the reverse-link signal strengths, adding sectors that report reverse-link signal strengths greater than an add threshold and dropping sectors that report reverse-link signal strengths less than a drop threshold.

Abstract translation: 移动站接收前向链路信号并发送用于通过无线网络进行的通信会话的反向链路信号。 控制器维护反向有效集合，其定义无线网络的哪些扇区用于接收反向链路信号。 当移动站发送请求通信会话的请求信号时，控制器可以创建反向有效集合以包括接收到具有最高信号强度的请求信号的扇区。 在通信会话期间，可以在多个扇区的每个扇区中监视反向链路信号的信号强度，以获得反向链路信号强度。 控制器可以基于反向链路信号强度维持反向有效集合，添加报告反向链路信号强度大于添加阈值的扇区，并且丢弃报告反向链路信号强度小于丢弃阈值的扇区。