Search

JP-2026076263-A - BWP-based operation for REDCAP user devices

JP2026076263AJP 2026076263 AJP2026076263 AJP 2026076263AJP-2026076263-A

Abstract

[Problem] To provide a device for bandwidth portion (BWP) based operation for REDCAP user equipment. [Solution] A method for configuring a UE for RedCap (Reduced Capability) operation involves decoding a Master Information Block (MIB) to determine a Control Resource Set (CORESET) and a Common Search Space (CSS), decoding a System Information Block (SIB) in a Physical Downlink Shared Channel (PDSCH) scheduled by Downlink Control Information (DCI), using the SIB to determine an additional CORESET in a separate Initial DL BWP, and in the separate Initial DL BWP, performing reception of a PDSCH associated with a PDCCH or Random Access procedure in a Physical Downlink Control Channel (PDCCH) Type 1 Common Search Space (CSS) set. [Selection Diagram] Figure 5

Inventors

  • チャタジー，デブディープ
  • ション，ガン
  • イスラム，トウフィクル
  • リ，インヤン

Assignees

  • インテル コーポレイション

Dates

Publication Date
20260511
Application Date
20260123
Priority Date
20210329

Claims (20)

  1. A device for RedCap (reduced capacities) user equipment (UE) configured to operate in a 5G NR (Fifth Generation New Radio) network, A processing circuit mechanism for setting up the RedCap UE for a random access procedure in the 5G NR network, Decoding a first configuration signaling to explicitly obtain an initial downlink bandwidth portion (DL BWP), wherein the initial DL BWP includes downlink resources in the Common Search Space (CSS), and the first configuration signaling explicitly specifies to the RedCap UE an initial DL BWP for use by the RedCap UE that is different from the initial DL BWP signaled by the first configuration signaling for use by a non-RedCap UE. Decoding the second configuration signaling to explicitly obtain the initial uplink bandwidth portion (UL BWP) of the RedCap UE, wherein the initial UL BWP of the RedCap UE includes uplink resources, and the second configuration signaling explicitly specifies to the RedCap UE an initial UL BWP for use by the RedCap UE that is different from the initial UL BWP signaled by the second configuration signaling for use by the non-RedCap UE. A processing circuit mechanism that performs the random access procedure based on decoding a first random access communication received using the downlink resource of the CSS and encoding a second random access communication for transmission using the uplink resource, An apparatus comprising: a memory coupled to the processing circuit mechanism and configured to store the first setting signaling and the second setting signaling.
  2. The apparatus according to claim 1, wherein the center frequency of the initial DL BWP of the RedCap UE is the same as the center frequency of the initial UL BWP of the RedCap UE.
  3. The aforementioned processing circuit mechanism is The apparatus according to claim 1, wherein during the RRC_CONNECTED state, a third setting signaling is decoded, the third setting signaling sets an active DL BWP for the RedCap UE, and the active DL BWP includes a synchronization signal block (SSB).
  4. The apparatus according to claim 3, wherein the SSB is a non-cell-defined SSB.
  5. The aforementioned processing circuit mechanism is Decoding a System Information Block (SIB) in a Physical Downlink Shared Channel (PDSCH) scheduled by Downlink Control Information (DCI) format, wherein the DCI format is received based on the CSS, Using the aforementioned SIB, an additional set of control resources (CORESET) is determined within a separate initial DL BWP, The apparatus according to claim 1, wherein the separate initial DL BWP is configured to perform reception of a physical downlink control channel (PDCCH) in a PDCCH type 1CSS set, or a PDSCH associated with a second random access procedure.
  6. The aforementioned processing circuit mechanism is The apparatus according to claim 5, configured to perform receiving of a PDCCH in a PDCCH type 2 CSS set, or a PDSCH for paging monitoring in the separate initial DL BWP for RedCap operation.
  7. The aforementioned processing circuit mechanism is The apparatus according to claim 6, wherein the UE is in RRC_CONNECTED mode, an additional CORESET physical resource block (PRB) is included in the active DL BWP, and the apparatus is configured to perform the paging monitoring based on monitoring the PDCCH type 2 CSS in the additional CORESET when the active DL BWP and a separate initial DL BWP have the same subcarrier spacing (SCS).
  8. The aforementioned processing circuit mechanism is The apparatus according to claim 5, which is configured to perform random access-related DL reception based on monitoring a PDCCH type 1 CSS in the additional CORESET, wherein when the PDCCH type 1 CSS is indicated to be mapped to the additional CORESET, the UE is in RRC_CONNECTED mode, the physical resource blocks (PRBs) of the additional CORESET are contained within an active DL BWP, and the active DL BWP and the separate initial DL BWP have the same SCS.
  9. The apparatus according to claim 5, wherein, when the UE is in the RRC_CONNECTED state, if the UE does not demonstrate the ability to operate in the DL BWP without a synchronization signal block (SSB), the UE expects that the active RRC-configured DL BWP includes a cell-defined synchronization signal block (CD-SSB) or that a separate configuration is provided for a non-CD-SSB within the active DL BWP, wherein the non-CD-SSB is an SSB that is not used to determine the PCID (Primary Cell Identity) or to obtain SIB1 scheduling information (PDCCH type 0 CSS configuration).
  10. A transceiver circuit mechanism coupled to the processing circuit mechanism, The apparatus according to claim 1, further comprising one or more antennas coupled to the transceiver circuit mechanism.
  11. A non-temporary computer-readable storage medium storing instructions for execution by one or more processors of a source base station, wherein the instructions configure the base station for RedCap (Reduced Capability) operation in a 5G NR (Fifth Generation New Radio) network and cause the base station to perform the operation, the operation being: Encoding a first configuration signaling that explicitly indicates an initial downlink bandwidth portion (DL BWP) to a RedCap user device (UE), wherein the initial DL BWP includes downlink resources in the Common Search Space (CSS), and the first configuration signaling explicitly specifies to the RedCap UE an initial DL BWP for use by the RedCap UE that is different from the initial DL BWP signaled in the first configuration signaling for use by a non-RedCap UE. Encoding a second configuration signaling that explicitly indicates an initial uplink bandwidth portion (UL BWP) to the RedCap UE, wherein the initial UL BWP of the RedCap UE includes uplink resources, and the second configuration signaling explicitly specifies to the RedCap UE an initial UL BWP for use by the RedCap UE that is different from the initial UL BWP signaled by the second configuration signaling for use by the non-RedCap UE. A computer-readable storage medium comprising encoding random access communications for transmission to the RedCap UE using the downlink resources of the CSS.
  12. The computer-readable storage medium according to claim 11, wherein the center frequency of the initial DL BWP of the RedCap UE is the same as the center frequency of the initial UL BWP of the RedCap UE.
  13. The aforementioned operation is, The computer-readable storage medium according to claim 11, comprising encoding a third setting signaling for transmission to the RedCap UE, wherein the RedCap UE is in the RRC_CONNECTED state, the third setting signaling sets up an active DL BWP for the RedCap UE, and the active DL BWP includes a synchronization signal block (SSB).
  14. A non-temporary computer-readable storage medium for storing instructions for execution by one or more processors of a RedCap (Reducet Capability) user device (UE), wherein the instructions configure the RedCap UE for RedCap operation in a 5G NR (Fifth Generation New Radio) network and cause the RedCap UE to perform an operation, the operation being: Decoding a first configuration signaling to explicitly obtain an initial downlink bandwidth portion (DL BWP), wherein the initial DL BWP includes downlink resources in the Common Search Space (CSS), and the first configuration signaling explicitly specifies to the RedCap UE an initial DL BWP for use by the RedCap UE that is different from the initial DL BWP signaled by the first configuration signaling for use by a non-RedCap UE. Decoding the second configuration signaling to explicitly obtain the initial uplink bandwidth portion (UL BWP) of the RedCap UE, wherein the initial UL BWP of the RedCap UE includes uplink resources, and the second configuration signaling explicitly specifies to the RedCap UE an initial UL BWP for use by the RedCap UE that is different from the initial UL BWP signaled by the second configuration signaling for use by the non-RedCap UE. A computer-readable storage medium comprising performing a random access procedure based on decoding a first random access communication received using the downlink resource of the CSS and encoding a second random access communication for transmission using the uplink resource.
  15. The computer-readable storage medium according to claim 14, wherein the center frequency of the initial DL BWP of the RedCap UE is the same as the center frequency of the initial UL BWP of the RedCap UE.
  16. The aforementioned operation is, The computer-readable storage medium according to claim 14, comprising decoding a third setting signaling during the RRC_CONNECTED state, wherein the third setting signaling sets an active DL BWP for the RedCap UE, and the active DL BWP includes a synchronization signal block (SSB).
  17. The computer-readable storage medium according to claim 16, wherein the SSB is a non-cell-defined SSB.
  18. The aforementioned operation is, Decoding a System Information Block (SIB) in a Physical Downlink Shared Channel (PDSCH) scheduled by Downlink Control Information (DCI) format, wherein the DCI format is received based on the CSS, Using the aforementioned SIB, an additional set of control resources (CORESET) is determined within a separate initial DL BWP, The computer-readable storage medium according to claim 14, further comprising performing reception of a physical downlink control channel (PDCCH) in a PDCCH type 1CSS set, or a PDSCH associated with a second random access procedure, in the separate initial DL BWP.
  19. The aforementioned operation is, The computer-readable storage medium according to claim 18, further comprising performing reception of a PDCCH in a PDCCH type 2 CSS set, or a PDSCH for paging monitoring in the separate initial DL BWP for RedCap operation.
  20. The aforementioned operation is, The computer-readable storage medium according to claim 19, further comprising performing the paging monitoring based on monitoring the PDCCH type 2 CSS in the additional CORESET when the UE is in RRC_CONNECTED mode, the additional CORESET physical resource block (PRB) is contained within the active DL BWP, and the active DL BWP and a separate initial DL BWP have the same subcarrier spacing (SCS).

Description

This application claims priority to the following U.S. provisional patent application. U.S. Provisional Patent Application No. 63/167,580, filed on May 29, 2021, entitled "BANDWIDTH PART (BWP)-BASED OPERATIONS FOR REDCAP USER EQUIPMENTS IN RADIO RESOURCE CONTROL (RRC) IDLE OR RRC INACTIVE MODES". U.S. Provisional Patent Application No. 63/171,982, filed on April 7, 2021, entitled "BANDWIDTH PART (BWP) - BASED OPERATIONS FOR REDCAP USER EQUIPMENTS IN RADIO RESOURCE CONTROL (RRC) IDLE OR RRC INACTIVE MODES". U.S. Provisional Patent Application No. 63/186,736, filed on May 10, 2021, entitled "BANDWIDTH PART (BWP) - BASED OPERATIONS FOR REDCAP USER EQUIPMENTS IN RADIO RESOURCE CONTROL (RRC) IDLE OR RRC INACTIVE MODES". U.S. Provisional Patent Application No. 63/251,298, filed on October 1, 2021, entitled "BANDWIDTH PART (BWP) - BASED OPERATIONS FOR RED CUPUSER EQUIPMENTS INRADIO RESOURCE CONTROL (RRC) IDLEORRRC INACTIVE MODES". U.S. Provisional Patent Application No. 63/254,847, filed on October 12, 2021, entitled "BANDWIDTH PART (BWP)-BASED OPERATIONS FOR REDCAP USER EQUIPMENTS IN RADIO RESOURCE CONTROL (RRC) IDLE OR RRC INACTIVE MODES". Each of the patent applications listed above is incorporated herein by reference in its entirety. The aspects relate to wireless communications. Some aspects relate to wireless networks including 5G networks and above, such as 3GPP® (Third Generation Partnership Project) networks, 3GPP LTE (Long Term Evolution) networks, 3GPP LTE-A (LTE Advanced) networks, (MultiFire, LTE-U), and 5G (fifth-generation) NR (new radio) (or 5G-NR) networks, 5G-LTE networks such as 5G NR unlicensed spectrum (NR-U) networks, and other unlicensed networks such as Wi-Fi and CBRS (OnGo). Other embodiments relate to techniques for configuring bandwidth portion (BWP)-based operation for RedCap (Reduced Capacity) user equipment (UEs) (e.g., UEs in RRC idle mode and RRC inactive mode) in 5G-NR (and above) networks. Mobile communications have evolved significantly from early voice systems to today's highly sophisticated integrated communication platforms. The increasing number of different types of devices communicating with various network devices has led to increased use of 3GPP LTE systems. The penetration of mobile devices (user equipment, or UE) into modern society has continued to drive the demand for diverse network-connected devices in many diverse environments. 5G (fifth-generation) wireless systems are on the horizon and are expected to enable faster speeds, greater connectivity, and improved usability. Next-generation 5G networks (or NR networks) are expected to improve throughput, coverage, and robustness, while reducing latency and operational and capital expenditures. 5G-NR networks will continue to evolve based on 3GPP LTE-Advanced, along with additional possible new radio access technologies (RATs), to enrich people's lives with seamless wireless connectivity solutions that deliver high-speed, rich content and services. As current cellular network frequencies become saturated, higher frequencies, such as millimeter-wave (mmWave) frequencies, may be beneficial due to their higher bandwidth. Possible LTE operations in the unlicensed spectrum include (but are not limited to) LTE operations in the unlicensed spectrum via DC (dual connectivity) or DC-based LAA, and standalone LTE systems in the unlicensed spectrum. According to this, LTE-based technologies operate only in the unlicensed spectrum without requiring an "anchor" in the unlicensed spectrum, known as MultiFire. Further enhanced operation of LTE and NR systems in the licensed spectrum, as well as the unlicensed spectrum, is expected in future releases and 5G (and above) systems. Such enhanced operation may include techniques for configuring BWP-based operation for RedCap UEs (e.g., UEs in RRC idle mode and RRC inactive mode) in 5G-NR (and above) networks. In the diagrams, the figures are not necessarily drawn to scale, but similar numbers may represent similar elements from different perspectives. Similar numbers with different suffixes may represent different examples of similar components. The diagrams are illustrative, not limiting, and generally illustrate the various aspects discussed in this document. Several network architectures are illustrated below. Several non-roaming 5G system architectures are illustrated below.Several non-roaming 5G system architectures are illustrated below. Various systems, devices, and components that can implement aspects of the disclosed embodiments are illustrated below.Various systems, devices, and components that can implement aspects of the disclosed embodiments are illustrated below.Various systems, devices, and components that can implement aspects of the disclosed embodiments are illustrated below. The following diagrams illustrate exemplary separate initial downlink (DL) BWP configuration options in several different configurations. Several embodiments illustrate different physical random acce