EP-4738987-A2 - IMPROVEMENTS IN AND RELATING TO TELECOMMUNICATION SYSTEMS

EP4738987A2EP 4738987 A2EP4738987 A2EP 4738987A2EP-4738987-A2

Abstract

The present disclosure relates to a method performed by a base station in a wireless communication system, the method comprising: transmitting, to a terminal, configuration information on an in device coexistence, IDC, assistance operation including a list of information on at least one candidate serving frequency range, wherein information on a candidate serving frequency range includes first information indicating a first center frequency of a corresponding candidate frequency range and second information indicating a bandwidth corresponding to the first center frequency; and receiving, from the terminal, IDC assistance information including information on an affected frequency range associated with an IDC problem based on the configuration information, the information on the affected frequency range including third information indicating a second center frequency of the affected frequency range and fourth information indicating a bandwidth corresponding to the second center frequency, wherein the second center frequency is located within a frequency range corresponding to the first center frequency.

Inventors

VAN DER VELDE, HIMKE
JIN, SEUNGRI
JANG, JAEHYUK
KIM, SANGBUM

Assignees

Samsung Electronics Co., Ltd.

Dates

Publication Date: 20260506
Application Date: 20201214

Claims (12)

A method performed by a base station in a wireless communication system, the method comprising: transmitting, to a terminal, configuration information on an in device coexistence, IDC, assistance operation including a list of information on at least one candidate serving frequency range, wherein information on a candidate serving frequency range includes first information indicating a first center frequency of a corresponding candidate frequency range and second information indicating a bandwidth corresponding to the first center frequency; and receiving, from the terminal, IDC assistance information including information on an affected frequency range associated with an IDC problem based on the configuration information, the information on the affected frequency range including third information indicating a second center frequency of the affected frequency range and fourth information indicating a bandwidth corresponding to the second center frequency, wherein the second center frequency is located within a frequency range corresponding to the first center frequency.
The method of claim 1, wherein, in case that a plurality of frequency bands are configured for the terminal and the at least one candidate serving frequency range is included in band combinations supported by the terminal, the information on the affected frequency range includes information indicating at least one band combination affected by the IDC problem.
The method of claim 1, wherein the first information is provided by a value of an absolute radio frequency channel number, ARFCN, for which the terminal is requested to report the IDC problem.
A method performed by a terminal in a wireless communication system, the method comprising: receiving, from a base station, configuration information on an in device coexistence, IDC, assistance operation including a list of information on at least one candidate serving frequency range, wherein information on a candidate serving frequency range includes first information indicating a first center frequency of a corresponding candidate frequency range and second information indicating a bandwidth corresponding to the first center frequency; identifying, based on the configuration information, an affected frequency range for which the terminal detects an IDC problem, wherein a second center frequency of the affected frequency range is located within a frequency range corresponding to the first center frequency; and transmitting, to the base station, IDC assistance information including information on the affected frequency range, wherein the information on the affected frequency range includes third information indicating the second center frequency of the affected frequency range and fourth information indicating a bandwidth corresponding to the second center frequency.
The method of claim 4, wherein, in case that a plurality of frequency bands are configured for the terminal and the at least one candidate serving frequency range is included in band combinations supported by the terminal, the information on the affected frequency range includes information indicating at least one band combination affected by the IDC problem.
The method of claim 4, wherein the first information is provided by a value of an absolute radio frequency channel number, ARFCN, for which the terminal is requested to report the IDC problem.
A base station in a wireless communication system, the base station comprising: a transceiver; and a controller configured to: control the transceiver to transmit, to a terminal, configuration information on an in device coexistence, IDC, assistance operation including a list of information on at least one candidate serving frequency range, wherein information on a candidate serving frequency range includes first information indicating a first center frequency of a corresponding candidate frequency range and second information indicating a bandwidth corresponding to the first center frequency, and control the transceiver to receive, from the terminal, IDC assistance information including information on an affected frequency range associated with an IDC problem based on the configuration information, the information on the affected frequency range including third information indicating a second center frequency of the affected frequency range and fourth information indicating a bandwidth corresponding to the second center frequency, wherein the second center frequency is located within a frequency range corresponding to the first center frequency.
The base station of claim 7, wherein, in case that a plurality of frequency bands are configured for the terminal and the at least one candidate serving frequency range is included in band combinations supported by the terminal, the information on the affected frequency range includes information indicating at least one band combination affected by the IDC problem.
The base station of claim 7, wherein the first information is provided by a value of an absolute radio frequency channel number, ARFCN, for which the terminal is requested to report the IDC problem.
A terminal in a wireless communication system, the terminal comprising: a transceiver; and a controller configured to: control the transceiver to receive, from a base station, configuration information on an in device coexistence, IDC, assistance operation including a list of information on at least one candidate serving frequency range, wherein information on a candidate serving frequency range includes first information indicating a first center frequency of a corresponding candidate frequency range and second information indicating a bandwidth corresponding to the first center frequency, identify, based on the configuration information, an affected frequency range for which the terminal detects an IDC problem, wherein a second center frequency of the affected frequency range is located within a frequency range corresponding to the first center frequency, and control the transceiver to transmit, to the base station, IDC assistance information including information on the affected frequency range, wherein the information on the affected frequency range includes third information indicating the second center frequency of the affected frequency range and fourth information indicating a bandwidth corresponding to the second center frequency.
The terminal of claim 10, wherein, in case that a plurality of frequency bands are configured for the terminal and the at least one candidate serving frequency range is included in band combinations supported by the terminal, the information on the affected frequency range includes information indicating at least one band combination affected by the IDC problem.
The terminal of claim 10, wherein the first information is provided by a value of an absolute radio frequency channel number, ARFCN, for which the terminal is requested to report the IDC problem.

Description

[Technical Field] The disclosure concerns issues related to a User Equipment (UE) providing information to a Radio Access Network, RAN, to assist the network with setting the radio configuration. The assistance provided can relate to overheating in such a UE. In a further aspect, it also relates to improvements in and relating to In Device Coexistence (IDC). It relates to fifth generation (5G) or New Radio (NR) systems, and to networks beyond 5G and other systems and devices can benefit from embodiments of the disclosure. [Background Art] To meet the demand for wireless data traffic having increased since deployment of fourth generation (4G) communication systems, efforts have been made to develop an improved fifth generation (5G) or pre-5G communication system. Therefore, the 5G or pre-5G communication system is also called a 'Beyond 4G Network' or a 'Post LTE System'. The 5G communication system is considered to be implemented in higher frequency millimeter wave (mmWave) bands, e.g., 60GHz bands, so as to accomplish higher data rates. To decrease propagation loss of the radio waves and increase the transmission distance, the beamforming, massive multiple- input multiple-output (MIMO), Full Dimensional MIMO (FD-MIMO), array antenna, an analog beam forming, large scale antenna techniques are discussed in 5G communication systems. In addition, in 5G communication systems, development for system network improvement is under way based on advanced small cells, cloud Radio Access Networks (RANs), ultra-dense networks, device-to-device (D2D) communication, wireless backhaul, moving network, cooperative communication, Coordinated Multi-Points (CoMP), reception-end interference cancellation and the like. In the 5G system, Hybrid Frequency-Shift Keying (FSK) and Quadrature Amplitude Modulation (QAM) (FQAM) and sliding window superposition coding (SWSC) as an advanced coding modulation (ACM), and filter bank multi carrier (FBMC), non-orthogonal multiple access (NOMA), and sparse code multiple access (SCMA) as an advanced access technology have been developed. The Internet, which is a human centered connectivity network where humans generate and consume information, is now evolving to the Internet of Things (IoT) where distributed entities, such as things, exchange and process information without human intervention. The Internet of Everything (IoE), which is a combination of the IoT technology and the Big Data processing technology through connection with a cloud server, has emerged. As technology elements, such as "sensing technology", "wired/wireless communication and network infrastructure", "service interface technology", and "Security technology" have been demanded for IoT implementation, a sensor network, a Machine-to-Machine (M2M) communication, Machine Type Communication (MTC), and so forth have been recently researched. Such an IoT environment may provide intelligent Internet technology services that create a new value to human life by collecting and analyzing data generated among connected things. IoT may be applied to a variety of fields including smart home, smart building, smart city, smart car or connected cars, smart grid, health care, smart appliances and advanced medical services through convergence and combination between existing Information Technology (IT) and various industrial applications. Meanwhile, UEs are typically portable, battery-operated devices intended for use by users while carrying on their normal activities. Depending on the functions being performed by the UE, the internal temperature of the UE can rise to an undesirable level. The increase in temperature can depend on the number and/or types of activities being undertaken by the UE. [Disclosure] [Technical Problem] In LTE system, the UE is able to report that the UE is overheating and request the network to reduce the number of Carrier Components (CC) and/or the data rate according to a lower UE category and in response, the network is able to adjust the radio configuration of the UE such that its power consumption may be reduced. Also, in LTE systems, the UE is able to report that it experiences In-device Coexistence (IDC) problems for a particular band or band combination. 5G systems differ in some respects from LTE systems. Consequently, the approach used in LTE is either not possible or not desirable. [Technical Solution] The present invention is directed to subject matter as defined in the claims. An embodiment of the disclosure aims to address the aforementioned issues, in particular for UEs configured with EN-DC i.e. dual connectivity with LTE (EURA) used for the master cell group (MCG) and NR for the secondary cell group (SCG), and other issues not specifically mentioned here. An another embodiment of the disclosure aims to address the aforementioned issues, both for UEs connected to LTE (e.g. mobility to NR or for EN-DC) or to NR, and other issues not specifically mentioned here. [Advantageous Effects] According to the dis