Terminal recognition method and computer device
View Patent ↗A terminal recognition method and a computer device are provided. The method includes receiving a first message through a sidelink, wherein the first message is a message transmitted by a second terminal before the second terminal performs a capability information exchange process with the first terminal through the sidelink; and recognizing a terminal type of the second terminal based on the first message, wherein the terminal type comprises a Reduced Capability (RedCap) terminal.
1 . A terminal recognition method, wherein the method is performed by a first terminal and comprises:
receiving a first message through a sidelink, wherein the first message is a message transmitted by a second terminal before the second terminal performs a capability information exchange process with the first terminal through the sidelink; and
recognizing a terminal type of the second terminal based on the first message, wherein the terminal type comprises a Reduced Capability (RedCap) terminal,
wherein the recognizing a terminal type of the second terminal based on the first message, comprises:
recognizing the terminal type of the second terminal based on a resource pool to which a resource corresponding to the first message belongs.
2 . The method according to claim 1 , wherein the recognizing a terminal type of the second terminal based on the first message, comprises:
acquiring a type indication information from the first message, wherein the type indication information is configured to indicate the terminal type of the second terminal; and
recognizing the terminal type of the second terminal based on the type indication information.
3 . The method according to claim 2 , wherein the first message comprises at least one of a PC5 interface (PC5) based Security (PC5-S) message, a PCS based Radio Resource Control (PC5-RRC) message, a Media Access Control layer Control Element (MAC CE), or a Physical Sidelink Control Channel (PSCCH) message.
4 . The method according to claim 3 , wherein the PC5-S message comprises at least one of a message of Discovery announce on PC5, a message of announce a Proximity Service (ProSe) Query Code on PC5, a message of a ProSe Response Code on PC5, a Direct Communication Request message, or a Direct Communication Accept message.
5 . The method according to claim 1 , wherein resource pools of different terminal types satisfy at least one condition of:
resources in the resource pools of the different terminal types having no overlap in a time domain;
the resources in the resource pools of the different terminal types having no overlap in a frequency domain;
the resource pools of the different terminal types corresponding to different Demodulation Reference Signal (DMRS) scrambling code Identities (IDs); or
the resource pools of the different terminal types corresponding to different Physical Sidelink Feedback Channel (PSFCH) cyclic displacements.
6 . The method according to claim 1 , wherein the recognizing a terminal type of the second terminal based on the first message, comprises:
acquiring a layer-2 ID of the first message; and
recognizing the terminal type of the second terminal based on the layer-2 ID of the first message.
7 . The method according to claim 1 , wherein the recognizing a terminal type of the second terminal based on the first message, comprises:
acquiring a physical layer parameter corresponding to the first message; and
recognizing the terminal type of the second terminal based on the physical layer parameter corresponding to the first message.
8 . The method according to claim 7 , wherein the physical layer parameter comprises at least one of a reference signal sequence or a reference signal cyclic shift.
9 . The method according to claim 1 , wherein the terminal type is configured to indicate at least one information of:
a terminal transmitting the first message being the RedCap terminal or a non-RedCap terminal;
a RedCap-terminal sub type of the terminal transmitting the first message, in response to the terminal transmitting the first message being the RedCap terminal; wherein the RedCap-terminal sub type comprises at least one of a high-level RedCap terminal, a low-level RedCap terminal, a RedCap terminal of a (Frequency Range) FR1 frequency band, or a RedCap terminal of a FR2 frequency band; the high-level RedCap terminal and the low-level RedCap terminal are RedCap terminals which are divided based on specified capability information, and the specified capability information comprises at least one of a transmission rate, the number of Receive (Rx) antennas, the number of Transport (Tx) antennas, or a maximum supported bandwidth;
an application scenario of the terminal transmitting the first message in response to the terminal transmitting the first message being the RedCap terminal;
the number of the Rx antennas of the terminal transmitting the first message in response to the terminal transmitting the first message being the RedCap terminal;
the number of the Tx antennas of the terminal transmitting the first message in response to the terminal transmitting the first message being the RedCap terminal; or
a maximum bandwidth supported by the terminal transmitting the first message in response to the terminal transmitting the first message being the RedCap terminal.
10 . A terminal recognition method, wherein the method is performed by a second terminal and comprises:
transmitting a first message through a sidelink before performing a capability information exchange process with a first terminal through the sidelink, wherein the first message is configured to indicate the first terminal to recognize a terminal type of the second terminal, and the terminal type comprises a Reduced Capability (RedCap) terminal,
wherein the transmitting a first message through a sidelink, comprises:
transmitting the first message through the sidelink on a resource in a resource pool of the terminal type of the second terminal.
11 . The method according to claim 10 , wherein the transmitting a first message through a sidelink, comprises:
transmitting the first message comprising type indication information through the sidelink, wherein the type indication information is configured to indicate the terminal type of the second terminal.
12 . The method according to claim 11 , wherein the first message comprises at least one of a PC5-S message, a PC5-RRC message, a MAC CE, or a PSCCH message.
13 . The method according to claim 12 , wherein the PC5-S message comprises at least one of a message of discovery announce on PC5, a message of announce a Proximity Service (ProSe) Query Code on PC5, a message of a ProSe Response Code on PC5, a Direct Communication Request message, or a Direct Communication Accept message.
14 . The method according to claim 10 , wherein resource pools of different terminal types satisfy at least one condition of:
resources in the resource pools of the different terminal types having no overlap in a time domain;
the resources in the resource pools of the different terminal types having no overlap in a frequency domain;
the resource pools of the different terminal types corresponding to different DMRS scrambling code IDs; or
the resource pools of the different terminal types corresponding to different PPSFCH cyclic displacements.
15 . The method according to claim 10 , wherein before the transmitting a first message through a sidelink, the method further comprises:
setting a layer-2 ID in the first message to be a layer-2 ID corresponding to the terminal type of the second terminal.
16 . The method according to claim 10 , wherein the transmitting a first message through a sidelink, comprises:
transmitting the first message through the sidelink based on a physical layer parameter corresponding to the terminal type of the second terminal;
wherein the physical layer parameter comprises at least one of a reference signal sequence or a reference signal cyclic shift.
17 . The method according to claim 10 , wherein the terminal type is configured to indicate at least one information of:
a terminal transmitting the first message being the RedCap terminal or a non-low capability terminal;
a RedCap-terminal sub type of the terminal transmitting the first message, in response to the terminal transmitting the first message being the RedCap terminal; wherein the RedCap-terminal sub type comprises at least one of a high-level RedCap terminal, a low-level RedCap terminal, a RedCap terminal of a FR1 frequency band, or a RedCap terminal of a FR2 frequency band; the high-level RedCap terminal and the low-level RedCap terminal are RedCap terminals which are divided based on specified capability information, and the specified capability information comprises at least one of a transmission rate, the number of Rx antennas, the number of Tx antennas, or a maximum supported bandwidth;
an application scenario of the terminal transmitting the first message in response to the terminal transmitting the first message being the RedCap terminal;
the number of the Rx antennas of the terminal transmitting the first message in response to the terminal transmitting the first message being the RedCap terminal;
the number of the Tx antennas of the terminal transmitting the first message in response to the terminal transmitting the first message being the RedCap terminal; or
a maximum bandwidth supported by the terminal transmitting the first message in response to the terminal transmitting the first message being the RedCap terminal.
18 . A computer device, wherein the computer device is implemented as a first terminal and comprises:
a memory;
a transceiver, configured to receive a first message through a sidelink, wherein the first message is a message transmitted by a second terminal before the second terminal performs a capability information exchange process with the first terminal through the sidelink; and
a processor, configured to recognize a terminal type of the second terminal based on the first message, wherein the terminal type comprises a Reduced Capability (RedCap) terminal; or
wherein the computer device is implemented as a first terminal and comprises:
a processor;
a memory;
a transceiver, configured to transmit a first message through a sidelink before performing a capability information exchange process with a first terminal through the sidelink, wherein the first message is configured to indicate the first terminal to recognize a terminal type of the second terminal, and the terminal type comprises a Reduced Capability (RedCap) terminal,
wherein transceiver is further configured to:
transmit the first message through the sidelink on a resource in a resource pool of the terminal type of the second terminal.