IP Library › Granted Patent US 12,666,496
Granted Patent B2
US 12,666,496 · App. 18/019,243 · Granted Jun 23, 2026

Terminal apparatus, base station apparatus, and method

Inventors: Takako Hori (Sakai City, JP); Shohei Yamada (Sakai City, JP); Hidekazu Tsuboi (Sakai City, JP)
Assignee: SHARP KABUSHIKI KAISHA
H04W76/30H04W4/06H04W72/20H04W76/20
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Quick Facts
Patent No.
US 12,666,496
App. No.
18/019,243
Filed
Feb 2, 2023
Granted
Jun 23, 2026
Kind
B2
Art Unit
2466
USPC
370/329
Abstract

Provided is a terminal apparatus configured to release, based on receiving, via a DCCH from the base station apparatus, an RRC message including a part of session information of an MBS session, an MBS radio bearer used to receive the MBS session.

Claims (6)

1 . A terminal apparatus for communicating with a base station apparatus, wherein

the terminal apparatus is configured to release a Packet Data Convergence Protocol (PDCP) entity of a Multicast Broadcast Service (MBS) Radio Bearer (MRB) for receiving an MBS on a Point-to-Point basis after receiving, from the base station, via a Dedicated Control Channel (DCCH), a Radio Resource Control (RRC) message including a session identity (ID) of the MBS, the RRC message indicating to the terminal apparatus to release the MRB corresponding to the session ID.

2 . A base station apparatus for communicating with a terminal apparatus, wherein

the base station apparatus is configured to cause the terminal apparatus to release a Packet Data Convergence Protocol (PDCP) entity of a Multicast Broadcast Service (MBS) Radio Bearer (MRB) for transmitting an MBS on a Point-to-Point basis after transmitting, to the terminal apparatus, via a Dedicated Control Channel (DCCH), a Radio Resource Control (RRC) message including a session identity (ID) of the MBS, the RRC message indicating to the terminal apparatus to release the MRB corresponding to the session ID.

3 . A method performed by a terminal apparatus for communicating with a base station apparatus, the method comprising:

releasing a Packet Data Convergence Protocol (PDCP) entity of a Multicast Broadcast Service (MBS) Radio Bearer (MRB) for receiving an MBS on a Point-to-Point basis after receiving, from the base station, via a Dedicated Control Channel (DCCH), a Radio Resource Control (RRC) message including a session identity (ID) of the MBS, the RRC message indicating to the terminal apparatus to release the MRB corresponding to the session ID.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 2, 2023
From: HORI, TAKAKO; YAMADA, SHOHEI; TSUBOI, HIDEKAZU
To: SHARP KABUSHIKI KAISHA
Reel/Frame 062566/0857 →
Priority Claims (1)
JP 2020-132233 · Aug 4, 2020 · national
Continuity (1)
Related Publication 20230309185A1 · Sep 28, 2023
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