公开(公告)号：US20240267889A1

公开(公告)日：2024-08-08

申请号：US18640534

申请日：2024-04-19

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hongyu Xiang ,  Bingzhao Li ,  Lei Chen ,  Feng Han ,  Chenwan Li

IPC: H04W68/02 ,  H04W8/22 ,  H04W52/36

CPC classification number: H04W68/02 ,  H04W8/22 ,  H04W52/367

Abstract: This application discloses a communication method and a communication apparatus. The method includes: A first access network device receives paging capability information from a core network device or a second access network device, determines a paging area based on the paging capability information, and sends a paging message to a terminal device in the determined paging area. The paging capability information indicates one or more of the following capabilities: a maximum transmit power supported by the terminal device on a first frequency band; a bandwidth configuration supported by the terminal device; whether the terminal device supports a frequency offset of 7.5 kHz; a type of the terminal device; or a number of Rx chains supported by the terminal device. In other words, the paging capability information indicates a plurality of paging capabilities of the terminal device.

公开(公告)号：US20250016555A1

公开(公告)日：2025-01-09

申请号：US18893109

申请日：2024-09-23

Applicant: Huawei Technologies Co, Ltd.

Inventor： Hongyu Xiang ,  Lei Chen ,  Yang Cui ,  Yizhuang Wu ,  Ao Lei ,  Ruijie Li

IPC: H04W12/033 ,  H04W12/10 ,  H04W74/0833

Abstract: This application relates to communication technologies, and provides a channel key-based encryption method and an apparatus, to resolve a problem that a terminal cannot avoid an attack from a false base station before a security mode is enabled, and a security risk. The method includes: A network device broadcasts a system information block, indicating that channel key generation is supported, where the system information block includes a preamble and a resource configuration of a physical random access channel; receives, on the physical random access channel, a first message from a user equipment, where the first message includes the preamble; sends a second message to the user equipment, where the second message includes configuration information of a first time-frequency resource; receives, on the first time-frequency resource, a third message from the user equipment; and performs channel measurement based on the third message, to obtain a channel key.

公开(公告)号：US20240089835A1

公开(公告)日：2024-03-14

申请号：US18516476

申请日：2023-11-21

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Hongyu Xiang ,  Bin Xu ,  Lei Chen ,  Bingzhao Li

IPC: H04W48/14 ,  H04W72/30

CPC classification number: H04W48/14 ,  H04W72/30

Abstract: A terminal device determines that local first system information is abnormal in the case of any of the following: a quantity of times of sending first signaling is greater than or equal to a first preset threshold within first preset duration; a time length in which a first service is unavailable is greater than or equal to a second preset threshold; a change trend of a tag value of a same system information block is abnormal; or a quantity of changes in a tag value of a same system information block is greater than or equal to a third preset threshold within second preset duration. The terminal device receives, from an access network device, second system information that is used to update the local first system information. Therefore, the terminal device can determine as soon as possible whether the terminal device is being attacked by a rogue base station.

公开(公告)号：US20230354266A1

公开(公告)日：2023-11-02

申请号：US18351111

申请日：2023-07-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Hongyu Xiang ,  Lei Chen ,  Bingzhao Li

IPC: H04W68/02

CPC classification number: H04W68/02

Abstract: A communication method and apparatus are disclosed. The method includes determining a first paging hyperframe (PH) based on a first extended discontinuous reception (eDRX) cycle, and determining a second PH based on a second eDRX cycle, where the first PH includes a first paging time window (PTW), and the second PH includes a second PTW; and monitoring a paging occasion (PO) in the first PTW and the second PTW, where if the first PH and the second PH are a same PH, a start position of the first PTW in the first PH is determined based on the first eDRX cycle and an offset.

公开(公告)号：US20230318791A1

公开(公告)日：2023-10-05

申请号：US18331113

申请日：2023-06-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Hongyu Xiang ,  Lei Chen ,  Bingzhao Li

IPC: H04L5/00 ,  H04W72/0453

CPC classification number: H04L5/0053 ,  H04W72/0453

Abstract: System information block transmission methods and communication apparatus are provided to resolve a problem that a terminal device cannot receive, on an active bandwidth part, a system information block broadcast by a network device. A network device sends a system information block to a terminal device through a first bandwidth part. When determining that a first moment satisfies a preset condition, the network device sends the system information block to the terminal device through a second bandwidth part, where the system information block is included in first dedicated signaling, and configuration information for sending the system information block by the network device is not configured on the second bandwidth part.

公开(公告)号：US20240365286A1

公开(公告)日：2024-10-31

申请号：US18770599

申请日：2024-07-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Hongyu Xiang ,  Bingzhao Li ,  Lei Chen ,  Chenwan Li

IPC: H04W68/02 ,  H04W76/30

CPC classification number: H04W68/02 ,  H04W76/30

Abstract: Embodiments of this disclosure provide a paging method and an associated communication apparatus, medium, and chip. According to embodiments of this disclosure, an access network device sends information including an address of the access network device and an identifier of a terminal device to a core network device. The core network device determines an area for paging based on the address of the access network device, and sends a paging message including the identifier of the terminal device to the access network device. The access network device sends a radio access network paging message to the terminal device. In this manner, the area in which paging needs to be performed by the core network device can be reduced, thereby avoiding a waste of unnecessary paging resources.

公开(公告)号：US20240098762A1

公开(公告)日：2024-03-21

申请号：US18521854

申请日：2023-11-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Haisen Zhang ,  Hongyu Xiang ,  Bin Xu ,  Bingzhao Li ,  Lei Chen

IPC: H04W72/30

CPC classification number: H04W72/30

Abstract: A communication method and apparatus are provided. The method includes: A first node determines a sending time point of a second PDCP PDU based on first sending status information from a second node, where the first sending status information is associated with a first PDCP PDU, so that the first node can adjust the sending time point of the second PDCP PDU based on a sending situation of the first PDCP PDU, to avoid too many packet losses caused when a MAC PDU of the second PDCP PDU is not completely sent in a timely manner due to splitting and concatenation, so as to improve reliability of a synchronous data transmission mechanism in an NR system, and improve resource utilization.