公开(公告)号：US11824972B2

公开(公告)日：2023-11-21

申请号：US17450891

申请日：2021-10-14

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： Madhusudan Pai ,  Rajendra Anthony ,  Bharatram Setti ,  Ramu Kandula

IPC: H04L29/06 ,  H04L9/08 ,  H04L9/30 ,  G06F21/57 ,  H04L9/32

CPC classification number: H04L9/0825 ,  G06F21/575 ,  H04L9/3073 ,  H04L9/3213 ,  H04L9/3268 ,  G06F2221/034

Abstract: A system and process for onboarding client devices to a key management server. In operation, a device generates an asymmetric key pair including a public key and a private key. The device obtains an access token from an identity management server after successfully authenticating with the identity management server. The device transmits a request including the access token and the public key to the key management server to onboard the client device. The device receives a response including encrypted bootstrap information from the key management server. The bootstrap information included in the response is encrypted using the public key of the asymmetric key pair. The device decrypts the encrypted bootstrap information using the private key of the asymmetric key pair to obtain the bootstrap information and then uses the bootstrap information for encrypting communications transmitted to the key management server or for decrypting communications received from the key management server.

公开(公告)号：US11665774B2

公开(公告)日：2023-05-30

申请号：US17341031

申请日：2021-06-07

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： Madhusudan Pai ,  Basem A. Ardah ,  Bibhudatta Biswal ,  Abhishek Jain ,  Ramu Kandula ,  Harisha Negalaguli ,  Krishnakant Patel ,  Brahmananda R. Vempati

IPC: H04W4/10 ,  H04W76/45 ,  H04W4/12 ,  H04W84/04

CPC classification number: H04W76/45 ,  H04W4/10 ,  H04W4/12 ,  H04W84/042

Abstract: Systems and methods for multiple mode push-to-x group calls. One example embodiment provides a push-to-X server. The push-to-X server includes a communication interface communicatively coupled to a communication network and an electronic processor. The electronic processor receives, via a unicast uplink channel, a group call request from a first subscriber unit of the communication network. The electronic processor receives, from the first subscriber unit, a push-to-X data stream. The electronic processor receives a unicast channel request from a second subscriber unit of the communication network. In response to receiving the unicast channel request, the electronic processor establishes a unicast channel resource with the second subscriber unit. The electronic processor transmits the push-to-X data stream to the second subscriber unit via the unicast channel resource and transmits the push-to-X data stream to a plurality of subscriber units via a broadcast media bearer channel.

公开(公告)号：US11197131B2

公开(公告)日：2021-12-07

申请号：US16710344

申请日：2019-12-11

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： Rohit A Nerlikar ,  Brahmananda R Vempati ,  Bidhudatta Biswal ,  Ramu Kandula ,  Harisha Negalaguli ,  Basem A Ardah

IPC: H04B7/00 ,  H04W4/10 ,  H04W4/24 ,  H04M15/00 ,  H04W76/45

Abstract: Techniques for variable length talk permit tone are provided. a request to initiate a Push-to-Talk (PTT) call may be received from a PTT call initiator. A first estimated length of time needed to set up resources for the PTT call may be determined. A second length of time to playout a talk permit tone (TPT) may be determined based on the determined first estimated length of time. An indication may be sent to the PTT call initiator to playout the TPT for the determined second length of time.

公开(公告)号：US11083042B2

公开(公告)日：2021-08-03

申请号：US16730057

申请日：2019-12-30

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： Madhusudan Pai ,  Basem A. Ardah ,  Bibhudatta Biswal ,  Abhishek Jain ,  Ramu Kandula ,  Harisha Negalaguli ,  Krishnakant Patel ,  Brahmananda R. Vempati

IPC: H04B7/00 ,  H04W76/45 ,  H04W4/10 ,  H04W84/04

Abstract: Systems and methods for multiple mode push-to-x group calls. One example embodiment provides a push-to-X server. The push-to-X server includes a communication interface communicatively coupled to a communication network and an electronic processor. The electronic processor receives, via a unicast uplink channel, a group call request from a first subscriber unit of the communication network. The electronic processor receives, from the first subscriber unit, a push-to-X data stream. The electronic processor receives a unicast channel request from a second subscriber unit of the communication network. In response to receiving the unicast channel request, the electronic processor establishes a unicast channel resource with the second subscriber unit. The electronic processor transmits the push-to-X data stream to the second subscriber unit via the unicast channel resource and transmits the push-to-X data stream to a plurality of subscriber units via a broadcast media bearer channel.

公开(公告)号：US20210297820A1

公开(公告)日：2021-09-23

申请号：US17341031

申请日：2021-06-07

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： Madhusudan Pai ,  Basem A. Ardah ,  Bibhudatta Biswal ,  Abhishek Jain ,  Ramu Kandula ,  Harisha Negalaguli ,  Krishnakant Patel ,  Brahmananda R. Vempati

IPC: H04W4/10 ,  H04W76/45 ,  H04W4/12

Abstract: Systems and methods for multiple mode push-to-x group calls. One example embodiment provides a push-to-X server. The push-to-X server includes a communication interface communicatively coupled to a communication network and an electronic processor. The electronic processor receives, via a unicast uplink channel, a group call request from a first subscriber unit of the communication network. The electronic processor receives, from the first subscriber unit, a push-to-X data stream. The electronic processor receives a unicast channel request from a second subscriber unit of the communication network. In response to receiving the unicast channel request, the electronic processor establishes a unicast channel resource with the second subscriber unit. The electronic processor transmits the push-to-X data stream to the second subscriber unit via the unicast channel resource and transmits the push-to-X data stream to a plurality of subscriber units via a broadcast media bearer channel.

公开(公告)号：US20210204359A1

公开(公告)日：2021-07-01

申请号：US16730057

申请日：2019-12-30

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： Madhusudan Pai ,  Basem A. Ardah ,  Bibhudatta Biswal ,  Abhishek Jain ,  Ramu Kandula ,  Harisha Negalaguli ,  Krishnakant Patel ,  Brahmananda R. Vempati

IPC: H04W76/45 ,  H04W4/10

Abstract: Systems and methods for multiple mode push-to-x group calls. One example embodiment provides a push-to-X server. The push-to-X server includes a communication interface communicatively coupled to a communication network and an electronic processor. The electronic processor receives, via a unicast uplink channel, a group call request from a first subscriber unit of the communication network. The electronic processor receives, from the first subscriber unit, a push-to-X data stream. The electronic processor receives a unicast channel request from a second subscriber unit of the communication network. In response to receiving the unicast channel request, the electronic processor establishes a unicast channel resource with the second subscriber unit. The electronic processor transmits the push-to-X data stream to the second subscriber unit via the unicast channel resource and transmits the push-to-X data stream to a plurality of subscriber units via a broadcast media bearer channel.