Methods, apparatuses, and computer readable media for adjusting coverage of multimedia broadcast multicast service

Patent metadata

Field	Value
Publication number	US-12363797-B2
Application number	US-202017788478-A
Country	US
Kind code	B2
Filing date	Jul 31, 2020
Priority date	Jul 31, 2020
Publication date	Jul 15, 2025
Grant date	Jul 15, 2025

Abstract

Disclosed are methods for adjusting cell coverage of a multimedia broadcast multicast service. An example method (700) may include transmitting (701) data of a multimedia broadcast multicast service on a point-to-multipoint channel, monitoring (702) an uplink channel for information on an abnormal reception of the data, and adjusting (703) coverage of the point-to-multipoint channel based on the monitoring. Related apparatuses and computer readable media are also disclosed.

First claim

What is claimed is:

1. A method comprising:
receiving first information on a timer for transmitting second information on an abnormal reception and on at least one quality threshold on a point-to-multipoint channel associated with a multimedia broadcast service;
monitoring, based on a time window matching a monitor time window provided by the timer and based on the at least one quality threshold in the first information, the point-to-multipoint channel for data of a multimedia broadcast multicast service;
detecting the abnormal reception of the data; and
transmitting the second information on the abnormal reception in response to the detection,
wherein the first information further comprises:
a configuration of the second information on the abnormal reception and at least one ongoing multimedia broadcast multicast service in a current cell or in a serving cell that provides one or more multimedia broadcast multicast services, and the first information is received via radio resource control signaling, system information, and a dedicated signaling,
wherein the configuration of the information on the abnormal reception is associated with the multimedia broadcast multicast service,
wherein the abnormal reception of the data comprises a reception failure of the data on the point-to-multipoint channel within a predetermined time window, and a decoding error of the data received via the point-to-multipoint channel,
wherein the information on the abnormal reception comprises information on: an indication on the abnormal reception, at least one quality detection on the point-to-multipoint channel associated with the multimedia broadcast multicast service, at least one ongoing multimedia broadcast multicast service in a current cell or in a serving cell that provides one or more multimedia broadcast multicast services, at least one correctly received multimedia broadcast multicast service in the current cell or the serving cell, and at least one multimedia broadcast multicast service of interest in the current cell or the serving cell,
wherein the at least one quality detection on the point-to-multipoint channel associated with the multimedia broadcast multicast service comprises: a detected signal and noise rate on the point-to-multipoint channel associated with the multimedia broadcast multicast service, detected channel quality information on the point-to-multipoint channel associated with the multimedia broadcast multicast service, a detected block error rate on the point-to-multipoint channel associated with the multimedia broadcast multicast service, and a detected package error rate on the point-to-multipoint channel associated with the multimedia broadcast multicast service,
wherein the information on the abnormal reception is transmitted via a radio resource control signaling, a media access control element, a physical layer signaling, and a preamble,
wherein the data of the multimedia broadcast multicast service via the point-to-multipoint channel comprises a control signaling of the multimedia broadcast multicast service via a multicast control channel and service data of the multimedia broadcast multicast service via a multicast traffic channel,
wherein a reception of the data of the multimedia broadcast multicast service and the transmission of the information on the abnormal reception are associated with different serving cells.

2. An apparatus comprising:
at least one processor; and
at least one memory including computer program code, the at least one memory and the computer program code being configured to, with the at least one processor, cause the apparatus to perform:
receiving first information on a timer for transmitting second information on an abnormal reception and on at least one quality threshold on a point-to-multipoint channel associated with a multimedia broadcast service,
monitoring, based on a time window matching a monitor time window provided by the timer and based on the at least one quality threshold in the first information, a point-to-multipoint channel for data of a multimedia broadcast multicast service,
detecting the abnormal reception of the data, and
transmitting the second information on the abnormal reception in response to the detection,
wherein the first information further comprises: a configuration of the second information on the abnormal reception and at least one ongoing multimedia broadcast multicast service in a current cell or in a serving cell that provides one or more multimedia broadcast multicast services, and the first information is received via a radio resource control signaling, system information, or and a dedicated signaling,
wherein the configuration of the information on the abnormal reception is associated with the multimedia broadcast multicast service,
wherein the abnormal reception of the data comprises a reception failure of the data on the point-to-multipoint channel within a predetermined time window, and a decoding error of the data received via the point-to-multipoint channel,
wherein the information on the abnormal reception comprises information on: an indication on the abnormal reception, at least one quality detection on the point-to-multipoint channel associated with the multimedia broadcast multicast service, at least one ongoing multimedia broadcast multicast service in a current cell or in a serving cell that provides one or more multimedia broadcast multicast services, at least one correctly received multimedia broadcast multicast service in the current cell or the serving cell, and at least one multimedia broadcast multicast service of interest in the current cell or the serving cell,
wherein the at least one quality detection on the point-to-multipoint channel associated with the multimedia broadcast multicast service comprises: a detected signal and noise rate on the point-to-multipoint channel associated with the multimedia broadcast multicast service, detected channel quality information on the point-to-multipoint channel associated with the multimedia broadcast multicast service, a detected block error rate on the point-to-multipoint channel associated with the multimedia broadcast multicast service, and a detected package error rate on the point-to-multipoint channel associated with the multimedia broadcast multicast service,
wherein the information on the abnormal reception is transmitted via a radio resource control signaling, a media access control element, a physical layer signaling, and a preamble,
wherein the data of the multimedia broadcast multicast service via the point-to-multipoint channel comprises a control signaling of the multimedia broadcast multicast service via a multicast control channel and service data of the multimedia broadcast multicast service via a multicast traffic channel,
wherein a reception of the data of the multimedia broadcast multicast service and the transmission of the information on the abnormal reception are associated with different serving cells.

Assignees

• Nokia Technologies Oy

Inventors

• He Jing
• Sebire Benoist

Classifications

• H04W52/143

  Downlink power control · CPC title

• H04L1/188

  Time-out mechanisms · CPC title

• H04L1/0009

  by adapting the channel coding (H04L1/1812 takes precedence) · CPC title

• H04L1/0003

  by switching between different modulation schemes · CPC title

• H04W52/42

  in systems with time, space, frequency or polarisation diversity · CPC title