EP-4742772-A1 - COMMUNICATION APPARATUS AND COMMUNICATION METHOD

EP4742772A1EP 4742772 A1EP4742772 A1EP 4742772A1EP-4742772-A1

Abstract

The present disclosure relates to a communication apparatus comprising the following. A transceiver of the communication apparatus, in operation, receives, a signal indicating a first sequence and a second sequence. A processing circuitry of the communication apparatus, in operation, obtains first information from the first sequence and obtains second information from the second sequence, detects presence or absence of a misalignment between the first information and the second information, and in a case of detecting the presence of a misalignment between the first information and the second information performs at least one of the following operations: (i) discarding at least one of the first information and the second information, (ii) performing a transition to a main radio monitoring operation of the communication apparatus, and (iii) performing an error operation.

Inventors

LI, HONGCHAO
HORIIKE, Naoto
SUZUKI, HIDETOSHI
ISHIKAWA, AKIRA

Assignees

Panasonic Intellectual Property Corporation of America

Dates

Publication Date: 20260513
Application Date: 20241107

Claims (15)

A communication apparatus, comprising: a transceiver, which, in operation, receives, a signal indicating a first sequence and a second sequence; circuitry, which, in operation, obtains first information from the first sequence and obtains second information from the second sequence, detects presence or absence of a misalignment between the first information and the second information, and in a case of detecting the presence of a misalignment between the first information and the second information performs at least one of the following operations: • discarding at least one of the first information and the second information, • performing a transition to a main radio monitoring operation of the communication apparatus, and • performing an error operation.
The communication apparatus according to claim 1, wherein the signal is a low-power signal, and wherein the first information is first low-power information and the second information is second low-power information, optionally, wherein the low-power signal is a low-power wake-up signal, LP-WUS, and wherein the circuitry, in operation, initiates monitoring of a control channel according to the LP-WUS; optionally, wherein the low-power signal is received in a low-power monitoring operation of the communication apparatus.
The communication apparatus according to claim 1 or 2, wherein the signal is an On-Off-Keying, OOK, based signal in time domain, and the signal indicates the first sequence as an On-Off-Keying, OOK, based binary sequence in time domain, and indicates the second sequence in time domain or in frequency domain respectively overlaid on at least one On-duration of the signal.
The communication apparatus according to any one of claims 1 to 3, wherein the circuitry, in operation, detects presence or absence of the misalignment between the first information and the second information by comparing a first bit sequence included in the first information and a second bit sequence included in the second information; optionally, wherein the circuitry, in operation, detects the presence of a misalignment between the first information and the second information when the first bit sequence differs from the second bit sequence; optionally, wherein the circuitry, in operation, detects the absence of a misalignment between the first information and the second information when the first bit sequence is equal to the second bit sequence.
The communication apparatus according to any one of claims 1 to 4, wherein the circuitry, in operation, in the case of detecting the presence of a misalignment between the first information and the second information, discards both the first information and the second information.
The communication apparatus according to any one of claims 1 to 4, wherein the circuitry, in operation, in the case of detecting the presence of a misalignment between the first information and the second information, discards the second information and uses the first information.
The communication apparatus according to any one of claims 1 to 4, wherein the circuitry, in operation, in the case of detecting the presence of a misalignment between the first information and the second information, discards the first information and uses the second information.
The communication apparatus according to any one of claims 1 to 7, wherein the circuitry, in operation, in the case of detecting the presence of a misalignment between the first information and the second information, • increments a misalignment count, • determines whether or not the misalignment count is equal to or larger than a misalignment threshold, and • selects at least one of the operations to be performed depending on whether or not the misalignment count is equal to or larger than the misalignment threshold; optionally, wherein the misalignment count is counted by a misalignment counter; optionally, wherein the misalignment count is counted by a misalignment timer.
The communication apparatus according to any one of claims 1 to 8, wherein the circuitry, in operation, generates a misalignment report including an indication of the misalignment between the first information and the second information; and the transceiver, in operation, transmits the misalignment report.
The communication apparatus according to claim 8, wherein the circuitry, in operation, generates the misalignment report in response to detecting the presence of a misalignment between the first information and the second information.
The communication apparatus according to any one of claims 1 to 10, wherein the circuitry, in operation, in the case of detecting the presence of a misalignment between the first information and the second information, • performs, an evaluation as to whether measurements on the signal fulfil a measurement quality condition; and • selects at least one of the operations to be performed according to a result of the evaluation.
The communication apparatus according to any one of claims 1 to 10, wherein the circuitry, in operation, in the case of detecting the presence of a misalignment between the first information and the second information, • determines whether or not the first sequence includes error correction information for the first information and/or determines whether or not the second sequence includes error correction information for the second information; and • selects at least one of the operations to be performed according to a result of the determination. optionally, wherein the circuitry in a case of determining that the first sequence includes error correction information selects to discard the second information, and/or wherein the circuitry in a case of determining that the second sequence includes error correction information selects to discard the first information.
The communication apparatus according to any one of claims 1 to 12, wherein the transceiver, in operation, receives configuration information, wherein the circuitry, in operation, determines a configuration from the configuration information; and the circuitry, in operation, in the case of detecting the presence of a misalignment between the first information and the second information, selects at least one of the operations to be performed according to a rule obtained from the configuration information; optionally, wherein the configuration information is low-power configuration information and the configuration is a low-power operation configuration.
The communication apparatus according to any one of claims 1 to 12, wherein the circuitry, in operation, in the case of detecting the presence of a misalignment between the first information and the second information, selects at least one of the operations to be performed according to a rule obtained from a firmware of the communication apparatus.
A communication method comprising: receiving a signal indicating a first sequence and a second sequence; obtaining first information from the first sequence and obtaining second information from the second sequence; detecting presence or absence of a misalignment between the first information and the second information; and in a case of detecting the presence of a misalignment between the first information and the second information, performing at least one of the following operations: • discarding at least one of the first information and the second information, • performing a transition to a main radio monitoring operation of the communication apparatus, and • performing an error operation.

Description

FIELD OF THE PRESENT DISCLOSURE The present disclosure is directed to methods, devices and articles in communication systems, such as 3GPP communication systems. TECHNICAL BACKGROUND Currently, the 3rd Generation Partnership Project (3GPP) works at the technical specifications for the new radio access technology - 5G NR (New Radio), which is also called fifth generation (5G) or NR and used interchangeably herein. One objective is to provide a single technical framework addressing all usage scenarios, requirements and deployment scenarios (see e.g., section 6 of 3GPP TR 38.913 e.g., version 16.0.0 or version 17.0.0), at least including enhanced mobile broadband (eMBB), ultra-reliable low-latency communications (URLLC), and massive machine type communication (mMTC). For example, eMBB deployment scenarios may include indoor hotspot, dense urban, rural, urban macro and high speed; URLLC deployment scenarios may include industrial control systems, mobile health care (remote monitoring, diagnosis and treatment), real time control of vehicles, wide area monitoring and control systems for smart grids; mMTC deployment scenarios may include scenarios with large number of devices with non-time critical data transfers such as smart wearables and sensor networks. The services eMBB and URLLC are similar in that they both demand broad bandwidth, while they are different in that the URLLC service may preferably require ultra-low latencies. A second objective is to achieve forward compatibility, which facilitates a completely new system design and/or the introduction of novel features. Summary One non-limiting and exemplary embodiment facilitates providing procedures for a UE to perform improved data transmission and reception procedures. In an embodiment, the techniques disclosed here feature: A communication apparatus, comprising a transceiver, which, in operation, receives, a signal indicating a first sequence and a second sequence, circuitry, which, in operation, obtains first information from the first sequence and obtains second information from the second sequence, detects presence or absence of a misalignment between the first information and the second information, and in a case of detecting the presence of a misalignment between the first information and the second information performs at least one of the following operations: (i) discarding at least one of the first information and the second information, (ii) performing a transition to a main radio monitoring operation of the communication apparatus, and (iii) performing an error operation. It should be noted that general or specific embodiments may be implemented as a system, a method, an integrated circuit, a computer program, a storage medium, or any selective combination thereof. Additional benefits and advantages of the disclosed embodiments and different implementations will be apparent from the specification and figures. The benefits and/or advantages may be individually obtained by the various embodiments and features of the specification and drawings, which need not all be provided in order to obtain one or more of such benefits and/or advantages. Brief description of the Figures In the following exemplary embodiments are described in more detail with reference to the attached figures and drawings. Fig. 1shows an exemplary architecture for a 3GPP NR system to which the exemplary embodiments of the present disclosure may be applied;Fig. 2illustrates transitioning between LR operation and MR operation of a communication apparatus;Fig. 3illustrates a section of a low-power signal, being an OOK signal, with sequences overlaid on On-durations of the signal; andFig. 4illustrates an exemplary and simplified structure of a user equipment (UE) and a base station;Fig. 5illustrates a functional structure of the circuitries pertaining to the UE;Fig. 6illustrates a functional structure of the circuitries pertaining to the base station;Fig. 7illustrates an exemplary and simplified flow diagram for the base station behavior according to an exemplary implementation of the present disclosure;Fig. 8illustrates an exemplary and simplified flow diagram for the UE behavior according to an exemplary implementation of the present disclosure;Fig. 9is a flow chart illustrating steps of an information misalignment handling operation performed by a communication apparatus in accordance with a first exemplary implementation of the present disclosure;Fig. 10is a flow chart illustrating steps of an information misalignment handling operation performed by a communication apparatus in accordance with a second exemplary implementation of the present disclosure;Fig. 11is a flow chart illustrating steps of an information misalignment handling operation performed by a communication apparatus in accordance with a third exemplary implementation of the present disclosure;Fig. 12is a flow chart illustrating steps of an information misalignment handling operation performed by a communication a