Unicast physical layer identifier indication method and device, unicast physical layer identifier determination method and device, storage medium and vehicle-mounted equipment
A technology for identifying and determining methods at the physical layer, applied in connection management, electrical components, wireless communication, etc., can solve problems such as data transmission conflicts, and achieve the effect of ensuring smooth transmission and avoiding data transmission conflicts
Pending Publication Date: 2022-03-29
BEIJING SPREADTRUM HI TECH COMM TECH CO LTD
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[0004] However, the unicast physical layer identifier used by the current vehicle-mounted short-distance communication terminal nodes is allocated after the security establishment. From the Radio Resource Control (RRC) establishment message to the security activation process, the terminal nodes still need to use the common physical layer Identifies receiving signaling data, resulting in data transmission conflicts
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[0029] As mentioned in the background technology, the unicast physical layer identifier used by the current vehicular short-distance communication terminal nodes is allocated after the security establishment. From the radio resource control (Radio Resource Control, RRC) establishment message to the security activation process, the terminal node still needs Signaling data is received with a common physical layer identifier, resulting in data transmission collisions.
[0030] In the technical solution of the present invention, during the random access process, the physical layer identifiers that are not in the physical layer identifier field of contention access are indicated for use by terminal nodes, that is, compared with the prior art, unicast physical layer identifiers are assigned to terminal nodes in advance, which can It avoids that the terminal node still needs to use the public physical layer identifier to receive signaling data during the process from the radio resourc...
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The invention discloses a unicast physical layer identifier indication method and device, a unicast physical layer identifier determination method and device, a storage medium and vehicle-mounted equipment. The unicast physical layer identifier indication method comprises the following steps: selecting a physical layer identifier from a plurality of physical layer identifiers outside a physical layer identifier domain for competitive access; and in the random access process, carrying the selected physical layer identifier in a response message and sending out the response message. According to the technical scheme, smooth transmission of terminal node data can be ensured.
Description
technical field [0001] The present invention relates to the field of communication technology, in particular to a unicast physical layer identification indication, a determination method and device, a storage medium, and a vehicle-mounted device. Background technique [0002] The vehicle-mounted short-distance communication system is a system for interconnection and communication between vehicle-mounted devices, including cockpit domain controllers, vehicle-mounted terminals (such as vehicle audio equipment, vehicle video equipment, and anti-theft systems), smartphones, and smart wearable devices. The vehicle-mounted short-distance communication system includes a management node and a terminal node, wherein the management node is a node that sends data scheduling information for the vehicle-mounted wireless short-distance communication system; the terminal node is responsible for receiving data scheduling information for the vehicle-mounted wireless short-distance communicati...
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Login to View More IPC IPC(8): H04W74/00H04W76/27
CPCH04W74/002H04W74/008H04W76/27H04W74/00
Inventor 高兴航范慧芳
Owner BEIJING SPREADTRUM HI TECH COMM TECH CO LTD