-
公开(公告)号：US20220377816A1
公开(公告)日：2022-11-24
申请号：US17869889
申请日：2022-07-21
申请人： Apple Inc.
发明人： Feng Yang , Alexander Sirotkin , Jaemin Han , Xu Zhang
IPC分类号： H04W76/10
摘要： Systems and methods of setting up an E1 interface for a gNB are described, A transmitting entity of the gNB-CU-CP and gNB-CU-UP initiates the first TNL association between the gNB-CU-CP and gNB-CU-UP, and is also limited to initiating the E1 Setup procedure. The transmitting entity sends an E1 SETUP REQUEST message to set up the E1 interface. Afterwards, a message is received from the receiving entity. The transmitting entity determines that the setup of the E1 interface is successful if the message contains IEs of an E1 SETUP RESPONSE message. The types of IEs include a message type IE and a name of the transmitting entity.
-
公开(公告)号：US11190260B2
公开(公告)日：2021-11-30
申请号：US16644635
申请日：2017-09-19
申请人： Apple Inc.
摘要： Herein is disclosed a beam estimation system comprising one or more transceivers, configured to transmit a plurality of first-stage reference beams, and to receive a first quality identifier corresponding to a first first-stage reference beam with a strongest signal strength and a second quality identifier corresponding to a second first-stage reference beam with a second strongest signal strength; and one or more processors, configured to determine a second-stage reference beam region based on the first quality identifier and the second quality identifier.
-
公开(公告)号：US11166282B2
公开(公告)日：2021-11-02
申请号：US16088239
申请日：2017-01-25
申请人： Apple Inc.
发明人： Min Huang , Feng Yang , Xu Zhang , Alexander Sirotkin
摘要： Embodiments of an Evolved Node-B (eNB), radio access network (RAN) central unit (RCU) and methods for radio resource control (RRC) are generally described herein. A RAN distributed unit (RDU) at an eNB may communicate with an RCU of a cloud RAN to cooperatively perform RRC functionality for the eNB 104. The RDU 105 may receive a request for an RRC connection from a User Equipment (UE), and may request global load information from the RCU. The RDU may determine whether to establish the requested RRC connection based on the global load information when a response from the RCU is received before a predetermined time. The RDU may determine whether to establish the requested RRC connection based on local load information when the response from the RCU is not received before the predetermined time.
-
公开(公告)号：US11153272B2
公开(公告)日：2021-10-19
申请号：US16408028
申请日：2019-05-09
申请人： Apple Inc.
发明人： Feng Yang , Min Huang , Xu Zhang , Alexander Sirotkin , Jaemin Han
摘要： Embodiments described herein relate to managing bearers in a radio access network (e.g., next generation RAN (NG-RAN), etc.). In one example, a central-unit control-plane (CU-CP) communicates with a distributed unit (DU) and a CU-UP to exchange transport network layer addresses (TNLAs) and tunnel endpoint identifiers (TEIDs) between the DU and the CU-UP. In this way, the DU becomes resistant to the CU-UP's rejection of a bearer setup request from the CU-CP during a bearer setup procedure. Furthermore, during virtual machine (VM) migration or local problems of the CU-UP, an E1 procedure known as “bearer relocate” can be defined to notify the DU of a new TNLA for one or more affected general packet radio service tunneling protocol (GTP) tunnels that are affected by the VM migration or local problems.
-
公开(公告)号：US11153271B2
公开(公告)日：2021-10-19
申请号：US16277658
申请日：2019-02-15
申请人： Apple Inc.
发明人： Feng Yang , Min Huang , Xu Zhang , Alexander Sirotkin , Jaemin Han
摘要： Embodiments described herein relate to managing bearers in a radio access network (e.g., next generation RAN (NG-RAN), etc.). In one example, a central-unit control-plane (CU-CP) communicates with a distributed unit (DU) and a CU-UP to exchange transport network layer addresses (TNLAs) and tunnel endpoint identifiers (TEIDs) between the DU and the CU-UP. In this way, the DU becomes resistant to the CU-UP's rejection of a bearer setup request from the CU-CP during a bearer setup procedure. Furthermore, during virtual machine (VM) migration or local problems of the CU-UP, an E1 procedure known as “bearer relocate” can be defined to notify the DU of a new TNLA for one or more affected general packet radio service tunneling protocol (GTP) tunnels that are affected by the VM migration or local problems.
-
公开(公告)号：US10952265B2
公开(公告)日：2021-03-16
申请号：US16393709
申请日：2019-04-24
申请人： Apple Inc.
发明人： Feng Yang , Alexander Sirotkin , Jaemin Han , Xu Zhang
摘要： Systems and methods of modifying the bearer context of a DRB of an E1 interface for a gNB are described. To modify the bearer context associated with a DRB for a particular UE, the gNB-CU-UP transmits a Bearer Context Modification Required message through the E1 interface and receives in response a Bearer Context Modification Confirm message that confirms the modification of the bearer context. The Bearer Context Modification Required message and Bearer Context Modification Confirm message both include the new GTP TEID and TNL address to be used after modification of the bearer context, a gNB-CU-CP UE E1AP ID that uniquely identifies a UE association over the E1 interface within the gNB-CU-CP, a gNB-CU-UP UE E1AP ID that uniquely identifies a UE association over the E1 interface within the gNB-CU-UP, and a DRB ID IE that uniquely identifies the DRB.
-
公开(公告)号：US10932168B2
公开(公告)日：2021-02-23
申请号：US16141440
申请日：2018-09-25
申请人： Apple Inc.
发明人： Feng Yang , Min Huang , Alexander Sirotkin , Xu Zhang
摘要： Embodiments of a Next Generation Node-B (gNB) and methods of communication are disclosed herein. The gNB may be configurable to operate as a source gNB (S-gNB). The S-gNB may transfer, from a control plane (CU-CP) of the S-gNB to a CU-CP of a target gNB (T-gNB), an XnAP handover request message that indicates an Xn handover of a User Equipment (UE) from the S-gNB to the T-gNB. The S-gNB may initiate data forwarding, from a user plane (CU-UP) of the S-gNB to a CU-UP of the T-gNB, of downlink data packets. The data forwarding may be terminated based on reception of end marker packets from a user plane function (UPF) entity. The CU-UP of the S-gNB may transfer end marker packets to the CU-UP of the S-gNB to indicate termination of the data forwarding.
-
公开(公告)号：US11438811B2
公开(公告)日：2022-09-06
申请号：US17182106
申请日：2021-02-22
申请人： Apple Inc.
发明人： Feng Yang , Min Huang , Alexander Sirotkin , Xu Zhang
摘要： Embodiments of a Next Generation Node-B (gNB) and methods of communication are disclosed herein. The gNB may be configurable to operate as a source gNB (S-gNB). The S-gNB may transfer, from a control plane (CU-CP) of the S-gNB to a CU-CP of a target gNB (T-gNB), an XnAP handover request message that indicates an Xn handover of a User Equipment (UE) from the S-gNB to the T-gNB. The S-gNB may initiate data forwarding, from a user plane (CU-UP) of the S-gNB to a CU-UP of the T-gNB, of downlink data packets. The data forwarding may be terminated based on reception of end marker packets from a user plane function (UPF) entity. The CU-UP of the S-gNB may transfer end marker packets to the CU-UP of the S-gNB to indicate termination of the data forwarding.
-
公开(公告)号：US11412554B2
公开(公告)日：2022-08-09
申请号：US16393753
申请日：2019-04-24
申请人： Apple Inc.
发明人： Feng Yang , Alexander Sirotkin , Jaemin Han , Xu Zhang
摘要： Systems and methods of setting up an E1 interface for a gNB are described. A transmitting entity of the gNB-CU-CP and gNB-CU-UP initiates the first TNL association between the gNB-CU-CP and gNB-CU-UP, and is also limited to initiating the E1 Setup procedure. The transmitting entity sends an E1 SETUP REQUEST message to set up the E1 interface. Afterwards, a message is received from the receiving entity. The transmitting entity determines that the setup of the E1 interface is successful if the message contains IEs of an E1 SETUP RESPONSE message. The types of IEs include a message type IE and a name of the transmitting entity.
-
公开(公告)号：US20210067224A1
公开(公告)日：2021-03-04
申请号：US16644635
申请日：2017-09-19
申请人： Apple Inc.
摘要： Herein is disclosed a beam estimation system comprising one or more transceivers, configured to transmit a plurality of first-stage reference beams, and to receive a first quality identifier corresponding to a first first-stage reference beam with a strongest signal strength and a second quality identifier corresponding to a second first-stage reference beam with a second strongest signal strength; and one or more processors, configured to determine a second-stage reference beam region based on the first quality identifier and the second quality identifier.
-
-
-
-
-
-
-
-
-
搜索结果
16 条记录 (耗时 0.017 秒)
