Granted Patent B2

US 12,739,609 · App. 18/475,704 · Granted Sep 15, 2026

Inventors: Boyuan Zhang (Dongguan, CN); Qianxi Lu (Dongguan, CN)

Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.

H04W8/005H04W48/20H04W92/18

Abstract

Claims (92)

1 . A generation method for a discovery message, wherein the method is performed by a first User Equipment (UE), and the method comprises:

generating message content through at least one layer of a PC5-S layer or a PC5-Radio Resource Control (RRC) layer; and

packaging the message content as the discovery message through the PC5-S layer, wherein

the generating message content through at least one layer of a PC5-S layer or a PC5-RRC layer comprises:

generating first message content through the PC5-S layer, wherein the first message content carries a first relaying-terminal-selection condition; and

generating second message content through the PC5-RRC layer, wherein the second message content carries a second relaying-terminal-selection condition:

the packaging the message content as the discovery message through the PC5-S layer comprises:

packaging the second message content in a PC5-RRC container through the PC5-RRC layer and transmitting the PC5-RRC container to the PC5-S layer; and

packaging the PC5-RRC container and the first message content as a third discovery message through the PC5-S layer:

wherein the first relaying-terminal-selection condition is a relaying-terminal-selection condition commonly used for layer-two relays and layer-three relays, and the relaying-terminal-selection condition is configured for a peer terminal of the first UE to perform a relaying selection;

or,

the generating message content through at least one layer of a PC5-S layer or a PC5-RRC layer, comprises:

generating second message content through the PC5-RRC layer, wherein the second message content carries a second relaying-terminal-selection condition;

the packaging the message content as the discovery message through the PC5-S layer, comprises:

packaging the second message content in a PC5-RRC container through the PC5-RRC layer and transmitting the PC5-RRC container to the PC5-S layer; and

packaging the PC5-RRC container as a second discovery message through the PC5-S layer;

wherein the second relaying-terminal-selection condition is a relaying-terminal-selection condition specially used for layer-two relays, and the relaying-terminal-selection condition is configured for the peer terminal of the first UE to perform a relaying selection.

2 . The method according to claim 1 , wherein the first message content and the second message content correspond to different layer-two identifiers.

3 . The method according to claim 1 , wherein the packaging the second message content in a PC5-RRC container through the PC5-RRC layer and transmitting the PC5-RRC container to the PC5-S layer, comprises:

packaging the second message content in the PC5-RRC container through the PC5-RRC layer and cutting the PC5-RRC container into at least two container fragments; and

transmitting the container fragments to the PC5-S layer through the PC5-RRC layer.

4 . The method according to claim 3 , wherein the transmitting the container fragments to the PC5-S layer through the PC5-RRC layer, comprises:

numbering the container fragments through the PC5-RRC layer; and

transmitting the container fragments carrying corresponding numbers to the PC5-S layer through the PC5-RRC layer.

5 . The method according to claim 4 , further comprising:

receiving, through a Physical Sidelink Feedback Channel (PSFCH), retransmission-indicating information fed back by a second UE, wherein the retransmission-indicating information carries a number corresponding to at least one of the container fragments; and

transmitting a fourth discovery message to the second UE through the PC5-S layer, wherein the at least one of the container fragments corresponding to the number is packaged in the fourth discovery message; and

wherein the second UE is the peer terminal of the first UE.

6 . The method according to claim 1 , wherein the first relaying-terminal-selection condition comprises at least one of:

a serving-cell identification;

a Public Land Mobile Network (PLMN) identification;

a supported-relaying-type indication;

a load condition indication;

a non-serving-cell identification; or

an inter-PLMN identification.

7 . The method according to claim 1 , wherein the second relaying-terminal-selection condition comprises at least one of:

a serving-cell identification;

a PLMN identification;

a supported-relaying-type indication;

a load condition indication;

a non-serving-cell identification; or

an inter-PLMN identification.

8 . The method according to claim 1 , further comprising:

broadcasting the discovery message through the PC5-S layer.

9 . The method according to claim 1 , wherein

the discovery message carrying a PC5-RRC container and the discovery message not carrying a PC5-RRC container correspond to different Sidelink-Single Radio Bearers (SL-SRBs); or

the discovery message packaged from the message content directly generated by the PC5-S layer and the discovery message packaged from the message content directly generated by the PC5-RRC layer correspond to different SL-SRBs.

10 . The method according to claim 1 , wherein

the discovery message carrying a PC5-RRC container and the discovery message not carrying a PC5-RRC container correspond to different transmitting-resource pools; or

the discovery message packaged from the message content directly generated by the PC5-S layer and the discovery message packaged from the message content directly generated by the PC5-RRC layer correspond to different transmitting-resource pools.

11 . An analysis method for a discovery message, wherein the method is performed by a second User Equipment (UE), and the method comprises:

receiving, through a PC5-S layer, the discovery message broadcast by a first UE; and

analyzing the discovery message through at least one layer of the PC5-S layer or a PC5-Radio Resource Control (RRC) layer,

wherein the analyzing the discovery message through at least one layer of the PC5-S layer or a PC5-RRC layer, comprises:

analyzing a first discovery message through the PC5-S layer and obtaining first message content, wherein the first message content carries a first relaying-terminal-selection condition,

wherein the first relaying-terminal-selection condition is a relaying-terminal-selection condition commonly used for layer-two relays and layer-three relays, and the relaying-terminal-selection condition is configured for a peer terminal of the second UE to perform a relaying selection;

or,

the analyzing the discovery message through at least one layer of the PC5-S layer or a PC5-RRC layer comprises:

analyzing a second discovery message through the PC5-S layer, obtaining a PC5-RRC container, and transmitting the PC5-RRC container to the PC5-RRC layer; and

analyzing the PC5-RRC container through the PC5-RRC layer and obtaining second message content, wherein the second message content carries a second relaying-terminal-selection condition,

wherein the second relaying-terminal-selection condition is a relaying-terminal-selection condition specially used for layer-two relays and the relaying-terminal-selection condition is configured for the peer terminal of the second UE to perform a relaying selection.

12 . The method according to claim 11 , wherein the PC5-RRC container comprises at least two container fragments; and the transmitting the PC5-RRC container to the PC5-RRC layer, comprises:

assembling the container fragments into the PC5-RRC container through the PC5-S layer and transmitting the PC5-RRC container to the PC5-RRC layer.

13 . The method according to claim 11 , wherein the first relaying-terminal-selection condition comprises at least one of:

a serving-cell identification;

a Public Land Mobile Network (PLMN) identification;

a supported-relaying-type indication;

a load condition indication;

a non-serving-cell identification; or

an inter-PLMN identification.

14 . The method according to claim 11 , wherein the second relaying-terminal-selection condition comprises at least one of:

a serving-cell identification;

a PLMN identification;

a supported-relaying-type indication;

a load condition indication;

a non-serving-cell identification; or

an inter-PLMN identification.

15 . A User Equipment (UE), wherein the UE comprises a processor;

the processor is configured to generate message content through at least one layer of a PC5-S layer or a PC5-Radio Resource Control (RRC) layer; and

the processor is configured to package the message content as a discovery message through the PC5-S layer,

wherein the processor is further configured to:

generate first message content through the PC5-S layer wherein the first message content carries a first relaying-terminal-selection condition;

generate second message content through the PC5-RRC layer, wherein the second message content carries a second relaying-terminal-selection condition;

package the second message content in a PC5-RRC container through the PC5-RRC layer and transmitting the PC5-RRC container to the PC5-S layer; and

package the PC5-RRC container and the first message content as a third discovery message through the PC5-S layer:

wherein the first relaying-terminal-selection condition is a relaying-terminal-selection condition commonly used for layer-two relays and layer-three relays, and the relaying-terminal-selection condition is configured for a peer terminal of the UE to perform a relaying selection;

or,

the processor is further configured to:

generate second message content through the PC5-RRC layer, wherein the second message content carries a second relaying-terminal-selection condition;

package the second message content in a PC5-RRC container through the PC5-RRC layer and transmitting the PC5-RRC container to the PC5-S layer; and

package the PC5-RRC container as a second discovery message through the PC5-S layer;

wherein the second relaying-terminal-selection condition is a relaying-terminal-selection condition specially used for layer-two relays, and the relaying-terminal-selection condition is configured for the peer terminal of the UE to perform a relaying selection.

Assignments (1)

Continuity (2)

References Cited (38)