WO2020223835A1 - Décalage configurable de cce de pdcch - Google Patents

Décalage configurable de cce de pdcch Download PDF

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Publication number
WO2020223835A1
WO2020223835A1 PCT/CN2019/085423 CN2019085423W WO2020223835A1 WO 2020223835 A1 WO2020223835 A1 WO 2020223835A1 CN 2019085423 W CN2019085423 W CN 2019085423W WO 2020223835 A1 WO2020223835 A1 WO 2020223835A1
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WIPO (PCT)
Prior art keywords
offset
sets
indication
cce offset
cce
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PCT/CN2019/085423
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English (en)
Inventor
Yuwei REN
Huilin Xu
Peter Pui Lok Ang
Wooseok Nam
Gabi Sarkis
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Qualcomm Incorporated
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Priority to PCT/CN2019/085423 priority Critical patent/WO2020223835A1/fr
Priority to PCT/CN2020/083454 priority patent/WO2020224365A1/fr
Publication of WO2020223835A1 publication Critical patent/WO2020223835A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path

Definitions

  • aspects of the present disclosure generally relate to wireless communication and to techniques and apparatuses for a configurable physical downlink control channel (PDCCH) control channel element (CCE) offset.
  • PDCCH physical downlink control channel
  • CCE control channel element
  • Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, and broadcasts.
  • Typical wireless communication systems may employ multiple-access technologies capable of supporting communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, and/or the like) .
  • multiple-access technologies include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency-division multiple access (FDMA) systems, orthogonal frequency-division multiple access (OFDMA) systems, single-carrier frequency-division multiple access (SC-FDMA) systems, time division synchronous code division multiple access (TD-SCDMA) systems, and Long Term Evolution (LTE) .
  • LTE/LTE-Advanced is a set of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard promulgated by the Third Generation Partnership Project (3GPP) .
  • UMTS Universal Mobile Telecommunications System
  • a wireless communication network may include a number of base stations (BSs) that can support communication for a number of user equipment (UEs) .
  • a user equipment (UE) may communicate with a base station (BS) via the downlink and uplink.
  • the downlink (or forward link) refers to the communication link from the BS to the UE
  • the uplink (or reverse link) refers to the communication link from the UE to the BS.
  • a BS may be referred to as a Node B, a gNB, an access point (AP) , a radio head, a transmit receive point (TRP) , a New Radio (NR) BS, a 5G Node B, and/or the like.
  • New Radio which may also be referred to as 5G, is a set of enhancements to the LTE mobile standard promulgated by the Third Generation Partnership Project (3GPP) .
  • 3GPP Third Generation Partnership Project
  • NR is designed to better support mobile broadband Internet access by improving spectral efficiency, lowering costs, improving services, making use of new spectrum, and better integrating with other open standards using orthogonal frequency division multiplexing (OFDM) with a cyclic prefix (CP) (CP-OFDM) on the downlink (DL) , using CP-OFDM and/or SC-FDM (e.g., also known as discrete Fourier transform spread OFDM (DFT-s-OFDM) ) on the uplink (UL) , as well as supporting beamforming, multiple-input multiple-output (MIMO) antenna technology, and carrier aggregation.
  • OFDM orthogonal frequency division multiplexing
  • SC-FDM e.g., also known as discrete Fourier transform spread OFDM (DFT-s-OFDM)
  • DFT-s-OFDM discrete Fourier transform spread OFDM
  • MIMO multiple-input multiple-output
  • a method of wireless communication may include receiving, from a base station (BS) , an indication of a configured control channel element (CCE) offset for one or more search space (SS) sets associated with the BS, and monitoring one or more physical downlink control channel (PDCCH) candidates, in the one or more SS sets, based at least in part on the configured CCE offset.
  • CCE configured control channel element
  • a UE for wireless communication may include memory and one or more processors operatively coupled to the memory.
  • the memory and the one or more processors may be configured to receive, from a BS, an indication of a configured CCE offset for one or more SS sets associated with the BS, and to monitor one or more PDCCH candidates, in the one or more SS sets, based at least in part on the configured CCE offset.
  • a non-transitory computer-readable medium may store one or more instructions for wireless communication.
  • the one or more instructions when executed by one or more processors of a UE, may cause the one or more processors to: receive, from a BS, an indication of a configured CCE offset for one or more SS sets associated with the BS; and monitor one or more PDCCH candidates, in the one or more SS sets, based at least in part on the configured CCE offset.
  • an apparatus for wireless communication may include means for receiving, from a BS, an indication of a configured CCE offset for one or more SS sets associated with the BS, and means for monitoring one or more PDCCH candidates, in the one or more SS sets, based at least in part on the configured CCE offset.
  • a method of wireless communication may include transmitting, to a UE, an indication of a configured CCE offset for one or more SS sets associated with the BS, and transmitting one or more PDCCH communications, in the one or more SS sets, based at least in part on the configured CCE offset.
  • a BS for wireless communication may include memory and one or more processors operatively coupled to the memory.
  • the memory and the one or more processors may be configured to transmit, to a UE, an indication of a configured CCE offset for one or more SS sets associated with the BS; and to transmit one or more PDCCH communications, in the one or more SS sets, based at least in part on the configured CCE offset.
  • a non-transitory computer-readable medium may store one or more instructions for wireless communication.
  • the one or more instructions when executed by one or more processors of a BS, may cause the one or more processors to: transmit, to a UE, an indication of a configured CCE offset for one or more SS sets associated with the BS; and transmit one or more PDCCH communications, in the one or more SS sets, based at least in part on the configured CCE offset.
  • an apparatus for wireless communication may include means for transmitting, to a UE, an indication of a configured CCE offset for one or more SS sets associated with the apparatus; and means for transmitting one or more PDCCH communications, in the one or more SS sets, based at least in part on the configured CCE offset.
  • Fig. 1 is a block diagram conceptually illustrating an example of a wireless communication network, in accordance with various aspects of the present disclosure.
  • Fig. 2 is a block diagram conceptually illustrating an example of a base station in communication with a UE in a wireless communication network, in accordance with various aspects of the present disclosure.
  • Fig. 3A is a block diagram conceptually illustrating an example of a frame structure in a wireless communication network, in accordance with various aspects of the present disclosure.
  • Fig. 3B is a block diagram conceptually illustrating an example synchronization communication hierarchy in a wireless communication network, in accordance with various aspects of the present disclosure.
  • Fig. 4 is a block diagram conceptually illustrating an example slot format with a normal cyclic prefix, in accordance with various aspects of the present disclosure.
  • Figs. 5A and 5B are diagrams illustrating an example of a configurable physical downlink control channel (PDCCH) control channel element (CCE) offset, in accordance with various aspects of the present disclosure.
  • PDCH physical downlink control channel
  • CCE control channel element
  • Fig. 6 is a diagram illustrating an example process performed, for example, by a user equipment, in accordance with various aspects of the present disclosure.
  • Fig. 7 is a diagram illustrating an example process performed, for example, by a base station, in accordance with various aspects of the present disclosure.
  • Fig. 1 is a diagram illustrating a wireless network 100 in which aspects of the present disclosure may be practiced.
  • the wireless network 100 may be an LTE network or some other wireless network, such as a 5G or NR network.
  • the wireless network 100 may include a number of BSs 110 (shown as BS 110a, BS 110b, BS 110c, and BS 110d) and other network entities.
  • a BS is an entity that communicates with user equipment (UEs) and may also be referred to as a base station, a NR BS, a Node B, a gNB, a 5G node B (NB) , an access point, a transmit receive point (TRP) , and/or the like.
  • Each BS may provide communication coverage for a particular geographic area.
  • the term “cell” can refer to a coverage area of a BS and/or a BS subsystem serving this coverage area, depending on the context in which the term is used.
  • a BS may provide communication coverage for a macro cell, a pico cell, a femto cell, and/or another type of cell.
  • a macro cell may cover a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access by UEs with service subscription.
  • a pico cell may cover a relatively small geographic area and may allow unrestricted access by UEs with service subscription.
  • a femto cell may cover a relatively small geographic area (e.g., a home) and may allow restricted access by UEs having association with the femto cell (e.g., UEs in a closed subscriber group (CSG) ) .
  • a BS for a macro cell may be referred to as a macro BS.
  • a BS for a pico cell may be referred to as a pico BS.
  • a BS for a femto cell may be referred to as a femto BS or a home BS.
  • a BS 110a may be a macro BS for a macro cell 102a
  • a BS 110b may be a pico BS for a pico cell 102b
  • a BS 110c may be a femto BS for a femto cell 102c.
  • a BS may support one or multiple (e.g., three) cells.
  • eNB base station
  • NR BS NR BS
  • gNB gNode B
  • AP AP
  • node B node B
  • 5G NB 5G NB
  • cell may be used interchangeably herein.
  • a cell may not necessarily be stationary, and the geographic area of the cell may move according to the location of a mobile BS.
  • the BSs may be interconnected to one another and/or to one or more other BSs or network nodes (not shown) in the wireless network 100 through various types of backhaul interfaces such as a direct physical connection, a virtual network, and/or the like using any suitable transport network.
  • Wireless network 100 may also include relay stations.
  • a relay station is an entity that can receive a transmission of data from an upstream station (e.g., a BS or a UE) and send a transmission of the data to a downstream station (e.g., a UE or a BS) .
  • a relay station may also be a UE that can relay transmissions for other UEs.
  • a relay station 110d may communicate with macro BS 110a and a UE 120d in order to facilitate communication between BS 110a and UE 120d.
  • a relay station may also be referred to as a relay BS, a relay base station, a relay, and/or the like.
  • Wireless network 100 may be a heterogeneous network that includes BSs of different types, e.g., macro BSs, pico BSs, femto BSs, relay BSs, and/or the like. These different types of BSs may have different transmit power levels, different coverage areas, and different impacts on interference in wireless network 100.
  • macro BSs may have a high transmit power level (e.g., 5 to 40 Watts) whereas pico BSs, femto BSs, and relay BSs may have lower transmit power levels (e.g., 0.1 to 2 Watts) .
  • a network controller 130 may couple to a set of BSs and may provide coordination and control for these BSs.
  • Network controller 130 may communicate with the BSs via a backhaul.
  • the BSs may also communicate with one another, e.g., directly or indirectly via a wireless or wireline backhaul.
  • UEs 120 may be dispersed throughout wireless network 100, and each UE may be stationary or mobile.
  • a UE may also be referred to as an access terminal, a terminal, a mobile station, a subscriber unit, a station, and/or the like.
  • a UE may be a cellular phone (e.g., a smart phone) , a personal digital assistant (PDA) , a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device or equipment, biometric sensors/devices, wearable devices (smart watches, smart clothing, smart glasses, smart wrist bands, smart jewelry (e.g., smart ring, smart bracelet) ) , an entertainment device (e.g., a music or video device, or a satellite radio) , a vehicular component or sensor, smart meters/sensors, industrial manufacturing equipment, a global positioning system device, or any other suitable device that is configured to communicate via a wireless or wired medium.
  • PDA personal digital assistant
  • WLL wireless local loop
  • MTC and eMTC UEs include, for example, robots, drones, remote devices, sensors, meters, monitors, location tags, and/or the like, that may communicate with a base station, another device (e.g., remote device) , or some other entity.
  • a wireless node may provide, for example, connectivity for or to a network (e.g., a wide area network such as Internet or a cellular network) via a wired or wireless communication link.
  • Some UEs may be considered Internet-of-Things (IoT) devices, and/or may be implemented as NB-IoT (narrowband internet of things) devices.
  • Some UEs may be considered a Customer Premises Equipment (CPE) .
  • UE 120 may be included inside a housing that houses components of UE 120, such as processor components, memory components, and/or the like.
  • any number of wireless networks may be deployed in a given geographic area.
  • Each wireless network may support a particular RAT and may operate on one or more frequencies.
  • a RAT may also be referred to as a radio technology, an air interface, and/or the like.
  • a frequency may also be referred to as a carrier, a frequency channel, and/or the like.
  • Each frequency may support a single RAT in a given geographic area in order to avoid interference between wireless networks of different RATs.
  • NR or 5G RAT networks may be deployed.
  • two or more UEs 120 may communicate directly using one or more sidelink channels (e.g., without using a base station 110 as an intermediary to communicate with one another) .
  • the UEs 120 may communicate using peer-to-peer (P2P) communications, device-to-device (D2D) communications, a vehicle-to-everything (V2X) protocol (e.g., which may include a vehicle-to-vehicle (V2V) protocol, a vehicle-to-infrastructure (V2I) protocol, and/or the like) , a mesh network, and/or the like.
  • V2X vehicle-to-everything
  • the UE 120 may perform scheduling operations, resource selection operations, and/or other operations described elsewhere herein as being performed by the base station 110.
  • Fig. 1 is provided as an example. Other examples may differ from what is described with regard to Fig. 1.
  • Fig. 2 shows a block diagram of a design 200 of base station 110 and UE 120, which may be one of the base stations and one of the UEs in Fig. 1.
  • Base station 110 may be equipped with T antennas 234a through 234t
  • UE 120 may be equipped with R antennas 252a through 252r, where in general T ⁇ 1 and R ⁇ 1.
  • a transmit processor 220 may receive data from a data source 212 for one or more UEs, select one or more modulation and coding schemes (MCS) for each UE based at least in part on channel quality indicators (CQIs) received from the UE, process (e.g., encode and modulate) the data for each UE based at least in part on the MCS (s) selected for the UE, and provide data symbols for all UEs. Transmit processor 220 may also process system information (e.g., for semi-static resource partitioning information (SRPI) and/or the like) and control information (e.g., CQI requests, grants, upper layer signaling, and/or the like) and provide overhead symbols and control symbols.
  • MCS modulation and coding schemes
  • Transmit processor 220 may also generate reference symbols for reference signals (e.g., the cell-specific reference signal (CRS) ) and synchronization signals (e.g., the primary synchronization signal (PSS) and secondary synchronization signal (SSS) ) .
  • a transmit (TX) multiple-input multiple-output (MIMO) processor 230 may perform spatial processing (e.g., precoding) on the data symbols, the control symbols, the overhead symbols, and/or the reference symbols, if applicable, and may provide T output symbol streams to T modulators (MODs) 232a through 232t. Each modulator 232 may process a respective output symbol stream (e.g., for OFDM and/or the like) to obtain an output sample stream.
  • TX transmit
  • MIMO multiple-input multiple-output
  • Each modulator 232 may process a respective output symbol stream (e.g., for OFDM and/or the like) to obtain an output sample stream.
  • Each modulator 232 may further process (e.g., convert to analog, amplify, filter, and upconvert) the output sample stream to obtain a downlink signal.
  • T downlink signals from modulators 232a through 232t may be transmitted via T antennas 234a through 234t, respectively.
  • the synchronization signals can be generated with location encoding to convey additional information.
  • antennas 252a through 252r may receive the downlink signals from base station 110 and/or other base stations and may provide received signals to demodulators (DEMODs) 254a through 254r, respectively.
  • Each demodulator 254 may condition (e.g., filter, amplify, downconvert, and digitize) a received signal to obtain input samples.
  • Each demodulator 254 may further process the input samples (e.g., for OFDM and/or the like) to obtain received symbols.
  • a MIMO detector 256 may obtain received symbols from all R demodulators 254a through 254r, perform MIMO detection on the received symbols if applicable, and provide detected symbols.
  • a receive processor 258 may process (e.g., demodulate and decode) the detected symbols, provide decoded data for UE 120 to a data sink 260, and provide decoded control information and system information to a controller/processor 280.
  • a channel processor may determine reference signal received power (RSRP) , received signal strength indicator (RSSI) , reference signal received quality (RSRQ) , channel quality indicator (CQI) , and/or the like.
  • RSRP reference signal received power
  • RSSI received signal strength indicator
  • RSRQ reference signal received quality
  • CQI channel quality indicator
  • one or more components of UE 120 may be included in a housing.
  • a transmit processor 264 may receive and process data from a data source 262 and control information (e.g., for reports comprising RSRP, RSSI, RSRQ, CQI, and/or the like) from controller/processor 280. Transmit processor 264 may also generate reference symbols for one or more reference signals. The symbols from transmit processor 264 may be precoded by a TX MIMO processor 266 if applicable, further processed by modulators 254a through 254r (e.g., for DFT-s-OFDM, CP-OFDM, and/or the like) , and transmitted to base station 110.
  • modulators 254a through 254r e.g., for DFT-s-OFDM, CP-OFDM, and/or the like
  • the uplink signals from UE 120 and other UEs may be received by antennas 234, processed by demodulators 232, detected by a MIMO detector 236 if applicable, and further processed by a receive processor 238 to obtain decoded data and control information sent by UE 120.
  • Receive processor 238 may provide the decoded data to a data sink 239 and the decoded control information to controller/processor 240.
  • Base station 110 may include communication unit 244 and communicate to network controller 130 via communication unit 244.
  • Network controller 130 may include communication unit 294, controller/processor 290, and memory 292.
  • Controller/processor 240 of base station 110, controller/processor 280 of UE 120, and/or any other component (s) of Fig. 2 may perform one or more techniques associated with a configurable physical downlink control channel (PDCCH) control channel element (CCE) offset, as described in more detail elsewhere herein.
  • controller/processor 240 of base station 110, controller/processor 280 of UE 120, and/or any other component (s) of Fig. 2 may perform or direct operations of, for example, process 600 of Fig. 6, process 700 of Fig. 7, and/or other processes as described herein.
  • Memories 242 and 282 may store data and program codes for base station 110 and UE 120, respectively.
  • a scheduler 246 may schedule UEs for data transmission on the downlink and/or uplink.
  • UE 120 may include means for receiving, from a base station (BS) , an indication of a configured CCE offset for one or more search space (SS) sets associated with the BS, means for monitoring one or more PDCCH candidates, in the one or more SS sets, based at least in part on the configured CCE offset, and/or the like.
  • BS base station
  • SS search space
  • such means may include one or more components of UE 120 described in connection with Fig. 2.
  • base station 110 may include means for transmitting, to a user equipment (UE) , an indication of a configured CCE offset for one or more SS sets associated with the BS, means for transmitting one or more PDCCH communications, in the one or more SS sets, based at least in part on the configured CCE offset, and/or the like.
  • UE user equipment
  • PDCCH communications in the one or more SS sets, based at least in part on the configured CCE offset, and/or the like.
  • such means may include one or more components of base station 110 described in connection with Fig. 2.
  • Fig. 2 is provided as an example. Other examples may differ from what is described with regard to Fig. 2.
  • Fig. 3A shows an example frame structure 300 for frequency division duplexing (FDD) in a telecommunications system (e.g., NR) .
  • the transmission timeline for each of the downlink and uplink may be partitioned into units of radio frames (sometimes referred to as frames) .
  • Each radio frame may have a predetermined duration (e.g., 10 milliseconds (ms) ) and may be partitioned into a set of Z (Z ⁇ 1) subframes (e.g., with indices of 0 through Z-1) .
  • Each subframe may have a predetermined duration (e.g., 1 ms) and may include a set of slots (e.g., 2 m slots per subframe are shown in Fig.
  • Each slot may include a set of L symbol periods.
  • each slot may include fourteen symbol periods (e.g., as shown in Fig. 3A) , seven symbol periods, or another number of symbol periods.
  • the subframe may include 2L symbol periods, where the 2L symbol periods in each subframe may be assigned indices of 0 through 2L–1.
  • a scheduling unit for the FDD may be frame-based, subframe-based, slot-based, symbol-based, and/or the like.
  • a wireless communication structure may refer to a periodic time-bounded communication unit defined by a wireless communication standard and/or protocol. Additionally, or alternatively, different configurations of wireless communication structures than those shown in Fig. 3A may be used.
  • a base station may transmit synchronization signals.
  • a base station may transmit a primary synchronization signal (PSS) , a secondary synchronization signal (SSS) , and/or the like, on the downlink for each cell supported by the base station.
  • PSS primary synchronization signal
  • SSS secondary synchronization signal
  • the PSS and SSS may be used by UEs for cell search and acquisition.
  • the PSS may be used by UEs to determine symbol timing
  • the SSS may be used by UEs to determine a physical cell identifier, associated with the base station, and frame timing.
  • the base station may also transmit a physical broadcast channel (PBCH) .
  • the PBCH may carry some system information, such as system information that supports initial access by UEs.
  • the base station may transmit the PSS, the SSS, and/or the PBCH in accordance with a synchronization communication hierarchy (e.g., a synchronization signal (SS) hierarchy) including multiple synchronization communications (e.g., SS blocks) , as described below in connection with Fig. 3B.
  • a synchronization communication hierarchy e.g., a synchronization signal (SS) hierarchy
  • multiple synchronization communications e.g., SS blocks
  • Fig. 3B is a block diagram conceptually illustrating an example SS hierarchy, which is an example of a synchronization communication hierarchy.
  • the SS hierarchy may include an SS burst set, which may include a plurality of SS bursts (identified as SS burst 0 through SS burst B-1, where B is a maximum number of repetitions of the SS burst that may be transmitted by the base station) .
  • each SS burst may include one or more SS blocks (identified as SS block 0 through SS block (b max_SS-1 ) , where b max_SS-1 is a maximum number of SS blocks that can be carried by an SS burst) .
  • An SS burst set may be periodically transmitted by a wireless node, such as every X milliseconds, as shown in Fig. 3B.
  • an SS burst set may have a fixed or dynamic length, shown as Y milliseconds in Fig. 3B.
  • the SS burst set shown in Fig. 3B is an example of a synchronization communication set, and other synchronization communication sets may be used in connection with the techniques described herein.
  • the SS block shown in Fig. 3B is an example of a synchronization communication, and other synchronization communications may be used in connection with the techniques described herein.
  • an SS block includes resources that carry the PSS, the SSS, the PBCH, and/or other synchronization signals (e.g., a tertiary synchronization signal (TSS) ) and/or synchronization channels.
  • synchronization signals e.g., a tertiary synchronization signal (TSS)
  • multiple SS blocks are included in an SS burst, and the PSS, the SSS, and/or the PBCH may be the same across each SS block of the SS burst.
  • a single SS block may be included in an SS burst.
  • the SS block may be at least four symbol periods in length, where each symbol carries one or more of the PSS (e.g., occupying one symbol) , the SSS (e.g., occupying one symbol) , and/or the PBCH (e.g., occupying two symbols) .
  • the symbols of an SS block are consecutive, as shown in Fig. 3B. In some aspects, the symbols of an SS block are non-consecutive. Similarly, in some aspects, one or more SS blocks of the SS burst may be transmitted in consecutive radio resources (e.g., consecutive symbol periods) during one or more slots. Additionally, or alternatively, one or more SS blocks of the SS burst may be transmitted in non-consecutive radio resources.
  • the SS bursts may have a burst period, whereby the SS blocks of the SS burst are transmitted by the base station according to the burst period. In other words, the SS blocks may be repeated during each SS burst.
  • the SS burst set may have a burst set periodicity, whereby the SS bursts of the SS burst set are transmitted by the base station according to the fixed burst set periodicity. In other words, the SS bursts may be repeated during each SS burst set.
  • the base station may transmit system information, such as system information blocks (SIBs) on a physical downlink shared channel (PDSCH) in certain slots.
  • SIBs system information blocks
  • the base station may transmit control information/data on a physical downlink control channel (PDCCH) in C symbol periods of a slot, where B may be configurable for each slot.
  • the base station may transmit traffic data and/or other data on the PDSCH in the remaining symbol periods of each slot.
  • Figs. 3A and 3B are provided as examples. Other examples may differ from what is described with regard to Figs. 3A and 3B.
  • Fig. 4 shows an example slot format 410 with a normal cyclic prefix.
  • the available time frequency resources may be partitioned into resource blocks.
  • Each resource block may cover a set of subcarriers (e.g., 12 subcarriers) in one slot and may include a number of resource elements.
  • Each resource element may cover one subcarrier in one symbol period (e.g., in time) and may be used to send one modulation symbol, which may be a real or complex value.
  • An interlace structure may be used for each of the downlink and uplink for FDD in certain telecommunications systems (e.g., NR) .
  • Q interlaces with indices of 0 through Q –1 may be defined, where Q may be equal to 4, 6, 8, 10, or some other value.
  • Each interlace may include slots that are spaced apart by Q frames.
  • interlace q may include slots q, q + Q, q + 2Q, etc., where q ⁇ ⁇ 0, ..., Q-1 ⁇ .
  • a UE may be located within the coverage of multiple BSs. One of these BSs may be selected to serve the UE. The serving BS may be selected based at least in part on various criteria such as received signal strength, received signal quality, path loss, and/or the like. Received signal quality may be quantified by a signal-to-noise-and-interference ratio (SNIR) , or a reference signal received quality (RSRQ) , or some other metric.
  • SNIR signal-to-noise-and-interference ratio
  • RSRQ reference signal received quality
  • the UE may operate in a dominant interference scenario in which the UE may observe high interference from one or more interfering BSs.
  • New Radio may refer to radios configured to operate according to a new air interface (e.g., other than Orthogonal Frequency Divisional Multiple Access (OFDMA) -based air interfaces) or fixed transport layer (e.g., other than Internet Protocol (IP) ) .
  • OFDM Orthogonal Frequency Divisional Multiple Access
  • IP Internet Protocol
  • NR may utilize OFDM with a CP (herein referred to as cyclic prefix OFDM or CP-OFDM) and/or SC-FDM on the uplink, may utilize CP-OFDM on the downlink and include support for half-duplex operation using time division duplexing (TDD) .
  • TDD time division duplexing
  • NR may, for example, utilize OFDM with a CP (herein referred to as CP-OFDM) and/or discrete Fourier transform spread orthogonal frequency-division multiplexing (DFT-s-OFDM) on the uplink, may utilize CP-OFDM on the downlink and include support for half-duplex operation using TDD.
  • CP-OFDM OFDM with a CP
  • DFT-s-OFDM discrete Fourier transform spread orthogonal frequency-division multiplexing
  • NR may include Enhanced Mobile Broadband (eMBB) service targeting wide bandwidth (e.g., 80 megahertz (MHz) and beyond) , millimeter wave (mmW) targeting high carrier frequency (e.g., 60 gigahertz (GHz) ) , massive MTC (mMTC) targeting non-backward compatible MTC techniques, and/or mission critical targeting ultra reliable low latency communications (URLLC) service.
  • eMBB Enhanced Mobile Broadband
  • mmW millimeter wave
  • mMTC massive MTC
  • URLLC ultra reliable low latency communications
  • NR resource blocks may span 12 sub-carriers with a sub-carrier bandwidth of 60 or 120 kilohertz (kHz) over a 0.1 millisecond (ms) duration.
  • Each radio frame may include 40 slots and may have a length of 10 ms. Consequently, each slot may have a length of 0.25 ms.
  • Each slot may indicate a link direction (e.g., DL or UL) for data transmission and the link direction for each slot may be dynamically switched.
  • Each slot may include DL/UL data as well as DL/UL control data.
  • NR may support a different air interface, other than an OFDM-based interface.
  • NR networks may include entities such as central units or distributed units.
  • Fig. 4 is provided as an example. Other examples may differ from what is described with regard to Fig. 4.
  • a base station may transmit control information and/or data on a PDCCH to one or more UEs.
  • the control information and/or data may be included in one or more PDCCH communications, such as a radio resource control (RRC) communication, a downlink control information (DCI) communication, a medium access control (MAC) control element (MAC-CE) communication, and/or the like.
  • RRC radio resource control
  • DCI downlink control information
  • MAC-CE medium access control element
  • the UE may monitor time-frequency resources, of a downlink between the base station and UE, for the one or more PDCCH communications.
  • the time-frequency resources in which a PDCCH communication may be transmitted may be referred to as a PDCCH candidate.
  • the base station may indicate, to the UE, one or more PDCCH candidates for the one or more PDCCH communications.
  • the UE may monitor the one or more PDCCH candidates by performing a blind decoding procedure of the one or more PDCCH candidates, where the UE blindly decodes each PDCCH candidate to determine whether a PDCCH communication was transmitted in the PDCCH candidate.
  • the one or more PDCCH candidates may be specified by a search space (SS) set.
  • An SS set may specify the locations of PDCCH candidates within a control resource set (CORESET) associated with the base station.
  • the CORESET may include a time-domain and frequency-domain range, included in a bandwidth part associated with the UE, that includes a plurality of control channel elements (CCEs) .
  • Each PDCCH candidate may comprise one or more CCEs of the CORESET, and the SS set may specify which CCEs correspond to PDCCH candidates.
  • the quantity of CCEs that are allocated for each PDCCH candidate may be referred to as the aggregation level of the SS set.
  • an SS set having an aggregation level of 1 may indicate that each PDCCH candidate, configured by the SS set, comprises a single CCE
  • an SS set having an aggregation level of 4 may indicate that each PDCCH candidate, configured by the SS set, comprises 4 CCEs.
  • the mapping of PDCCH candidates to CCEs may be determined based at least in part on a hash function.
  • An example hash function may include, for SS set s associated with CORESET p,
  • a carrier indicator field e.g., by CrossCarrierSchedulingConfig
  • the CCE offset for an SS set may specify or indicate a starting CCE index for the first PDDCH candidate of the SS set.
  • the CCE offset for the SS set may be based at least in part on the SS set type of the SS set. For example, if the SS set is a common SS (CSS) set (e.g., an SS set that is configured to be monitored by a plurality of UEs) , the CCE offset for the SS set may be zero. Accordingly, the first PDCCH candidate for all CSS sets may start at CCE index 0.
  • SCS common SS
  • the CCE offset for the SS set may be pseudo-randomly generated as a function of one or more parameters associated with the UE (e.g., a radio network temporary identifier (RNTI) associated with the UE and/or the like) .
  • RNTI radio network temporary identifier
  • CCE offsets for UESS sets may vary from slot to slot.
  • the base station may be unable to efficiently multiplex PDCCH candidates for a plurality UEs without collisions occurring between respective first PDCCH candidates (and potentially other PDCCH candidates) of the CSS set. This is due to the first PDCCH candidates all starting with CCE index 0. If the aggregation levels for the plurality of UEs are the same, then all PDCCH candidates for the CSS set will collide. As a result, the base station may be unable to use CSS sets for UE-specific control prior to a UE being RRC configured.
  • the base station may be unable to align PDCCH candidates for RRC configured UEs. As a result, the base station may be unable to configure a plurality of UEs to monitor the same PDCCH candidate for broadcast or group common control information. Instead, the base station needs to schedule individual (and redundant) PDCCH candidates for each UE, which increases signaling overhead and reduces PDCCH efficiency.
  • a base station may configure CCE offsets for various types of SS sets, as opposed to using the fixed zero CCE offset for CSS sets or variable CCE offsets for UESS sets. In this way, the base station may configure a particular CCE offset that a UE may use to monitor a CSS set for UE-specific control information, may configure groups of UEs with a particular CCE offset that the UEs may use to monitor UESS sets for group common control information, and/or the like.
  • Figs. 5A and 5B are diagrams illustrating one or more examples 500 of a configured PDCCH CCE offset, in accordance with various aspects of the present disclosure.
  • examples 500 may include communication between a base station (e.g., a BS 110) and one or more UEs (e.g., a UE 120) .
  • examples 500 may include additional base stations and/or additional or fewer UEs.
  • the base station and the UEs may communicate over a wireless communication link.
  • the wireless communication link may include an uplink and a downlink.
  • the base station may transmit, to a UE, control information and/or data on the downlink.
  • the control information and/or data may be transmitted on a physical channel such as a PDCCH.
  • the control information and/or data may include system information (e.g., system information blocks (SIBs) , other system information (OSI) , remaining minimum system information (RMSI) , and/or the like) , random access channel (RACH) procedure information (e.g., Msg2/Msg4 reception) , scheduling information (e.g., scheduling of physical downlink shared channel (PDSCH) transmissions) , wake-up signal (WUS) information, and/or the like.
  • system information e.g., system information blocks (SIBs) , other system information (OSI) , remaining minimum system information (RMSI) , and/or the like
  • RACH random access channel
  • Msg2/Msg4 reception e.g., Msg2/Msg4 reception
  • scheduling information e.g., scheduling of physical downlink shared channel (PDSCH) transmissions
  • WUS wake-up signal
  • the base station may configure one or more SS sets that the UE may monitor for PDCCH communications carrying the control information and/or data.
  • the one or more SS sets may be configured in the time-frequency resources of the one or more CORESETs configured for the UE.
  • the one or more SS sets may specify the CCEs, of the one or more CORESETs, that correspond to PDCCH candidates configured for the UE.
  • the one or more SS sets may include one or more CSS sets associated with the base station (and configured for any UE that is communicatively connected with the base station) , one or more UESS sets associated with the UE (e.g., that are configured specifically for the UE) , and/or the like.
  • the base station may configure one or more CCE offsets for the one or more SS sets.
  • the one or more CCE offsets may correspond to CCE offset values that are configurable by the base station, as opposed to being fixed values or values that are based on parameters associated with the one or more UEs.
  • Each SS set may be associated with one or more CCE offsets. For example, for a UESS set associated with a UE, the base station may associate a configured CCE offset, associated with the UE, for the UESS. As another example, for a CSS set, the base station may associate a plurality of configured CCE sets with the CSS set. In some aspects, each configured CCE offset may be configured for a respective UE.
  • a configured CCE offset may be configured for a particular UE. In some aspects, different configured CCE offsets may be configured for respective UEs. In some aspects, the configured CCE offset may be configured for a plurality of UEs (e.g., all of the UEs that are located within a cell associated with the base station, a subset of the UEs that are located within the cell associated with the base station, and/or the like) . In this case, depending on the other parameters for the corresponding SS sets (e.g., aggregation level, quantity of PDCCH candidates per SS set, and/or the like) , the plurality of UEs may be configured to monitor the same PDCCH candidates based at least in part on the configured CCE offset.
  • the corresponding SS sets e.g., aggregation level, quantity of PDCCH candidates per SS set, and/or the like
  • a configured CCE offset may be configured to be used for a particular SS set when a particular DCI format or type of PDCCH communication is to be transmitted (and thus, monitored for) in the SS set.
  • a particular RNTI may be configured for a PDCCH-based WUS, and a UE may use the configured CCE offset when the RNTI is used in an SS set.
  • a configured CCE offset may be configured to be used when a UE is in a particular operating state.
  • the base station may configure a configured CCE offset to be used when a UE is in a sleep or idle state, and the UE wakes up to monitor for a PDCCH-based WUS in a SS set.
  • a configured CCE offset may be configured to be used by particular types of UEs, by UEs that have particular functionalities, by UEs that have particular capabilities, and/or the like.
  • the base station may configure a configured CCE offset to be used by a UE having low-end hardware and/or other capabilities for all CSS sets that the UE monitors.
  • Fig. 5A illustrates various examples of SS set and corresponding configured CCE offset configurations.
  • the base station may configure a plurality of SS sets (e.g., SS set 1 through SS set 4) that the UEs are to monitor.
  • the plurality of SS sets may be associated with the same CORESET and/or different CORESETs.
  • Each CORESET may include a plurality of CCEs (e.g., CCE index 0 through CCE index n) .
  • Example SS set 1 may include an example of a UESS set.
  • the configured CCE offset for SS set 1 may correspond to a CCE offset value of 2.
  • the starting CCE of the first PDCCH candidate included in SS set 1 may be located two CCEs from CCE index 0 (e.g., CCE index 2) .
  • example SS set 1 may have an aggregation level of 2, in which case each PDCCH candidate, for SS set 1, may span two CCEs.
  • Example SS set 2 may include an example of a CSS set.
  • the configured CCE offset for SS set 2 may correspond to a CCE offset value of 5.
  • the starting CCE of the first PDCCH candidate, associated with UE 1, in SS set 2 may be located five CCEs from CCE index 0 (e.g., CCE index 5) .
  • example SS set 2 may have an aggregation level of 1 for UE 1, in which case each PDCCH candidate, for UE 1, may span one CCE.
  • Example SS set 3 may include an example of a CSS set.
  • the configured CCE offset for SS set 3 may correspond to a CCE offset value of 4.
  • the starting CCE of the first PDCCH candidate, associated with UE 2, in SS set 2 may be located four CCEs from CCE index 0 (e.g., CCE index 4) .
  • example SS set 3 may have an aggregation level of 1 for UE 2, in which case each PDCCH candidate, for UE 2, may span one CCE.
  • Example SS set 4 may include an example of a UESS set.
  • the configured CCE offset for SS set 4 may correspond to a CCE offset value of 2.
  • the starting CCE of the first PDCCH candidate included in SS set 4 may be located two CCEs from CCE index 0 (e.g., CCE index 2) .
  • example SS set 4 may have an aggregation level of 2, in which case each PDCCH candidate, for SS set 4, may span two CCEs.
  • the base station may configure CCE offsets such that configured CCE offsets for CSS sets may correspond to values other than a zero offset.
  • the base station may configure a plurality of CCE offsets for a particular CSS set (e.g., corresponding to SS set 2 and SS set 3) such that the PDCCH candidates configured for UE 1 in the CSS set, and the PDCCH candidates configured for UE 2 in the CSS set, do not overlap as a result of the configured CCE offsets.
  • This permits the base station to multiplex and transmit UE-specific information in the CSS set.
  • the base station may multiplex different group-common PDCCH-based WUSs for different subsets of UEs in a CSS set.
  • the base station may configure CCE offsets such that the configured CCE offsets for a plurality of UESS sets are the same configured CCE offset. This permits the base station to align at least a subset of PDCCH candidates across the plurality of UESS sets. In this case, the PDCCH candidates may overlap as a result of the configured CCE offsets being the same configured CCE offset, which permits the UEs associated with the UESS sets to monitor the same PDCCH candidates for group common control information and/or data.
  • the base station may transmit an indication of the one or more configured CCE offsets configured for the one or more SS sets.
  • the base station may transmit an indication of the one or more configured CCE offsets to the one or more UEs.
  • the base station may transmit an indication of a configured CCE offset to a UE, may transmit an indication of respective configured CCE offsets to a plurality of UEs, may transmit an indication of a configured CCE offset to a group of UEs (e.g., all of the UEs that are located within a cell of the base station, a subset of UEs that are located within a cell of the base station, and/or the like) , may transmit an indication of respective configured CCE offsets to different groups of UEs (e.g., may transmit an indication of a first configured CCE offset to the first subset of UEs, may transmit an indication of a second configured CCE offset to a second subset of UEs, and so on) , and/or the like.
  • groups of UEs e.g., may transmit an indication of a first configured CCE offset to the first subset of UEs, may transmit an indication of a second configured CCE offset to a second subset of UEs, and so on
  • the base station may transmit the indication, of the one or more configured CCE offsets, in one or more communications (e.g., one or more PDCCH communications) , one or more SIBs, OSIs, RMSIs, and/or the like.
  • the indication of the one or more configured CCE offsets may be indicated in a field (e.g., a configured CCE offset field and/or another type of field) in an SS set configuration or CORESET configuration specified in one or more communications.
  • the configured CCE offset may apply to all SS sets associated with the CORESET. In some aspects, if the indication of a configured CCE offset is included in one or more fields in a CORESET configuration, the configured CCE offset may apply to particular types of SS sets associated with the CORESET. For example, the configured CCE offset may apply to Type3 PDCCH CSS and/or UESS sets but not Type0, Type0A, Type1, or Type2 PDCCH CSS sets.
  • the base station may transmit, to the one or more UEs, an indication of a plurality of candidate configured CCE offsets (e.g., in an RRC communication, in a SIB, RMSI, and/or the like) , and may transmit, to the one or more UEs, the indication of the one or more configured CCE offsets by transmitting a communication (e.g., a DCI communication, a MAC-CE communication, and/or the like) that indexes into the list of candidate configured CCE offsets.
  • a communication e.g., a DCI communication, a MAC-CE communication, and/or the like
  • the indication of the one or more configured CCE offsets may include an explicit indication of the corresponding CCE offset values.
  • the indication of the configured CCE offset for SS set 1 may be an explicit indication of the CCE offset value 2.
  • the indication of the one or more configured CCE offsets may include an implicit indication of the corresponding CCE offset values.
  • the implicit indication may include information identifying one or more parameters for determining the corresponding CCE offset values.
  • the one or more parameters may include a formula for deriving the corresponding CCE offset values, may indicate whether the formula is to be slot dependent (in which case, the corresponding CCE offset values may vary across slots for all UEs) , and/or the like.
  • the base station may transmit one or more PDCCH communications, in the one or more SS sets configured for the one or more UEs, based at least in part on the one or more configured CCE offsets for the one or more SS sets.
  • the base station may transmit DCI communications, MAC-CE communications, WUS communications, and/or the like, in the CCEs corresponding to one or more PDCCH candidates that are determined based at least in part on the one or more configured CCE offsets.
  • the base station may use the configured SS sets to transmit various types of control information to the one or more UEs. For example, and continuing with the example SS sets illustrated in Fig. 5A, since the base station configured SS set 1 and SS set 4 such that the first PDCCH candidates for both SS sets overlap (e.g., the first PDCCH candidates for both SS sets span CCE indexes 2 and 3) , the base station may transmit group common information.
  • the UE may monitor the one or more PDCCH candidates, in the one or more SS sets, for the PDCCH communications transmitted from the BS. For example, the UE may determine the one or more PDCCH candidates based at least in part on the one or more configured CCE offsets for the one or more SS sets. That is, the UE may determine, for an SS set, a first PDCCH candidate that starts at a CCE that is determined based at least in part on a configured CCE offset for the SS set.
  • the UE may determine the PDCCH candidate by identifying a CCE index that may be identified in the indication of the one or more configured CCE offsets indicated by the base station, may be identified based at least in part on an offset value, indicated by the base station, from CCE index 0 of the SS set, and/or the like.
  • the UE may monitor the one or more PDCCH candidates by performing blind decoding of the one or more PDCCH candidates. For example, the UE may apply various PDCCH configuration parameters, in the hash function described above, to locate the one or more PDCCH candidates, and may use RNTI-based scrambling to blindly descramble and decode each PDCCH candidate in order to detect the one or more PDCCH communications.
  • the one or more PDCCH configuration parameters may include an aggregation level, a quantity of PDCCH candidates per aggregation level, the one or more configured CCE offsets indicated by the base station, and/or the like.
  • the base station may use a configured CCE offset for various types of SS sets as opposed to using the fixed zero CCE offset for CSS sets or variable CCE offsets for UESS sets.
  • the base station may configure a particular CCE offset that the UE may use to monitor a CSS set for UE-specific control information, may configure groups of UEs with a particular CCE offset that the UEs may use to monitor UESS sets for group common control information, and/or the like.
  • Figs. 5A and 5B are provided as examples. Other examples may differ from what is described with respect to Figs. 5A and 5B.
  • Fig. 6 is a diagram illustrating an example process 600 performed, for example, by a base station, in accordance with various aspects of the present disclosure.
  • Example process 600 is an example where a base station (e.g., BS 110) performs operations associated with configurable PDCCH CCE offset.
  • a base station e.g., BS 110
  • process 600 may include transmitting, to a UE, an indication of a configured CCE offset for one or more SS sets associated with the base station (block 610) .
  • the base station e.g., using transmit processor 220, receive processor 238, controller/processor 240, memory 242, and/or the like
  • process 600 may include transmitting one or more PDCCH communications, in the one or more SS sets, based at least in part on the configured CCE offset (block 620) .
  • the base station e.g., using transmit processor 220, receive processor 238, controller/processor 240, memory 242, and/or the like
  • Process 600 may include additional aspects, such as any single aspect or any combination of aspects described below and/or in connection with one or more other processes described elsewhere herein.
  • the indication of the configured CCE offset comprises an explicit indication of a CCE offset value.
  • the indication of the configured CCE offset comprises an indication of one or more parameters for deriving a CCE offset value.
  • the UE is included in a plurality of UEs that are located in a cell associated with the BS, and transmitting the indication of the configured CCE offset comprises transmitting the indication of the configured CCE offset to the plurality of UEs.
  • the indication of the configured CCE offset comprises information identifying one or more parameters for deriving a CCE offset value.
  • the plurality of UEs comprise a subset of UEs included in the cell.
  • the plurality of UEs comprise all of the UEs included in the cell.
  • process 600 further comprises transmitting, to another UE, an indication of another configured CCE offset for the one or more SS sets, the configured CCE offset and the other configured CCE offset being different configured CCE offsets.
  • the one or more SS sets comprise one or more common SS sets, and one or more first PDCCH candidates associated with the UE and included in the one or more common SS sets, and one or more second PDCCH candidates associated with the other UE and included in the one or more SS sets, do not overlap as a result of the configured CCE offset and the other configured CCE offset being different configured CCE offsets.
  • process 600 further comprises transmitting, to another UE, an indication of another configured CCE offset for the one or more SS sets, the configured CCE offset and the other configured CCE offset being a same configured CCE offset.
  • the one or more SS sets comprise one or more first UE-specific SS sets, and one or more first PDCCH candidates associated with the UE and included in the one or more UE-specific SS sets, and one or more second PDCCH candidates associated with the other UE and included in one or more second UE-specific SS sets associated with the other UE, overlap as a result of the configured CCE offset and the other configured CCE offset being the same configured CCE offset.
  • the UE is included in a first subset of UEs that are located in a cell associated with the BS, and transmitting the indication of the configured CCE offset comprises transmitting an indication of a first configured CCE offset to the first subset of UEs and transmitting an indication of a second configured CCE offset to a second subset of UEs that are located in the cell associated with the BS.
  • transmitting the one or more PDCCH communications comprises multiplexing, based at least in part on the first configured CCE offset and the second configured CCE offset, a first group-common PDCCH-based wakeup signal and a second group-common PDCCH-based wakeup signal; and transmitting, to the first subset of UEs and the second subset of UEs, the multiplexed first group-common PDCCH-based wakeup signal and second group-common PDCCH-based wakeup signal in the one or more SS sets.
  • transmitting the indication of the configured CCE offset comprises transmitting the indication of the configured CCE offset in one or more fields included in an SS set configuration.
  • transmitting the indication of the configured CCE offset comprises transmitting the indication of the configured CCE offset in one or more fields included in a CORESET configuration.
  • the configured CCE offset is for all SS sets associated with the CORESET.
  • the configured CCE offset is for SS set types associated with the one or more fields.
  • the one or more SS sets are associated with a particular DCI format.
  • the one or more SS sets are associated with a PDCCH WUS transmitted from the BS.
  • transmitting the indication of the configured CCE offset comprises transmitting the indication of the configured CCE offset based at least in part on a capability of the UE.
  • process 600 further comprises transmitting, to the UE, an indication of a plurality of candidate configured CCE offsets, wherein the indication of the configured CCE offset indexes into the plurality of candidate configured CCE offsets.
  • process 600 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in Fig. 6. Additionally, or alternatively, two or more of the blocks of process 600 may be performed in parallel.
  • Fig. 7 is a diagram illustrating an example process 700 performed, for example, by a UE, in accordance with various aspects of the present disclosure.
  • Example process 700 is an example where a UE (e.g., UE 120) performs operations associated with configurable PDCCH CCE offset.
  • process 700 may include receiving, from a BS, an indication of a configured CCE offset for one or more SS sets associated with the BS (block 710) .
  • the UE e.g., using receive processor 258, transmit processor 264, controller/processor 280, memory 282, and/or the like
  • process 700 may include monitoring one or more PDCCH candidates, in the one or more SS sets, based at least in part on the configured CCE offset (block 720) .
  • the UE e.g., using receive processor 258, transmit processor 264, controller/processor 280, memory 282, and/or the like
  • Process 700 may include additional aspects, such as any single aspect or any combination of aspects described below and/or in connection with one or more other processes described elsewhere herein.
  • the indication of the configured CCE offset comprises an explicit indication of a CCE offset value.
  • the indication of the configured CCE offset comprises an indication of one or more parameters for deriving a CCE offset value.
  • the UE is included in a plurality of UEs that are located in a cell associated with the BS, and the configured CCE offset is associated with the plurality of UEs.
  • the indication of the configured CCE offset comprises information identifying one or more parameters for deriving a CCE offset value.
  • the plurality of UEs comprise a subset of UEs included in the cell. In a sixth aspect, alone or in combination with one or more of the first through fifth aspects, the plurality of UEs comprise all of the UEs included in the cell. In a seventh aspect, alone or in combination with one or more of the first through sixth aspects, the one or more SS sets comprise at least one of a common SS set or a UE-specific SS set. In an eighth aspect, alone or in combination with one or more of the first through seventh aspects, the configured CCE offset and another configured CCE offset, associated with another UE located in a cell associated with the BS, are different configured CCE offsets.
  • the one or more SS sets comprise one or more CSS sets, and one or more first PDCCH candidates associated with the UE and included in the one or more common SS sets, and one or more second PDCCH candidates associated with the other UE and included in the one or more SS sets, do not overlap as a result of the configured CCE offset and the other configured CCE offset being different configured CCE offsets.
  • the configured CCE offset and another configured CCE offset, associated with another UE located in a cell associated with the BS are a same configured CCE offset.
  • the one or more SS sets comprise one or more first UESS sets, and one or more first PDCCH candidates associated with the UE and included in the one or more UE-specific SS sets, and one or more second PDCCH candidates associated with the other UE and included in one or more second UE-specific SS sets associated with the other UE, overlap as a result of the configured CCE offset and the other configured CCE offset being the same configured CCE offset.
  • the UE is included in a first subset of UEs that are located in a cell associated with the BS, the configured CCE offset is associated with the first subset of UEs, another configured CCE offset is associated with a second subset of UEs that are located in the cell associated with the BS, and the configured CCE offset and the other configured CCE offset are different configured CCE offsets.
  • process 700 further comprises receiving, based at least in part on monitoring the one or more PDCCH candidates, a first group-common PDCCH-based WUS transmitted from the BS, and the first group-common PDCCH-based WUS is multiplexed with a second group-common PDCCH-based WUS based at least in part on the configured CCE offset and the other configured CCE offset.
  • receiving the indication of the configured CCE offset comprises receiving the indication of the configured CCE offset in one or more fields included in an SS set configuration.
  • receiving the indication of the configured CCE offset comprises receiving the indication of the configured CCE offset in one or more fields included in a CORESET configuration.
  • the configured CCE offset is for all SS sets associated with the CORESET.
  • the configured CCE offset is for SS set types associated with the one or more fields.
  • the one or more SS sets are associated with a particular DCI format.
  • the one or more SS sets are associated with a PDCCH WUS transmitted from the BS.
  • receiving the indication of the configured CCE offset comprises receiving the indication of the configured CCE offset based at least in part on a capability of the UE.
  • process 700 further comprises receiving, from the BS, an indication of a plurality of candidate configured CCE offsets, and the indication of the configured CCE offset indexes into the plurality of candidate configured CCE offsets.
  • process 700 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in Fig. 7. Additionally, or alternatively, two or more of the blocks of process 700 may be performed in parallel.
  • ком ⁇ онент is intended to be broadly construed as hardware, firmware, and/or a combination of hardware and software.
  • a processor is implemented in hardware, firmware, and/or a combination of hardware and software.
  • “at least one of: a, b, or c” is intended to cover a, b, c, a-b, a-c, b-c, and a-b-c, as well as any combination with multiples of the same element (e.g., a-a, a-a-a, a-a-b, a-a-c, a-b-b, a-c-c, b-b, b-b-b, b-b-c, c-c, and c-c-c or any other ordering of a, b, and c) .
  • the terms “has, ” “have, ” “having, ” and/or the like are intended to be open-ended terms. Further, the phrase “based on” is intended to mean “based, at least in part, on” unless explicitly stated otherwise.

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Abstract

Selon divers aspects, la présente invention concerne de manière générale la communication sans fil. Selon certains aspects, une station de base (BS) peut transmettre, à un équipement utilisateur (UE), une indication d'un décalage d'élément de canal de commande (CCE) configuré pour un ou plusieurs ensembles d'espace de recherche (SS) associés à la BS. La BS peut transmettre une ou plusieurs communications de canal physique de commande de liaison descendante (PDCCH), dans le ou les ensembles SS, sur la base, au moins en partie, du décalage de CCE configuré. L'invention se présente également sous de nombreux autres aspects.
PCT/CN2019/085423 2019-05-03 2019-05-03 Décalage configurable de cce de pdcch WO2020223835A1 (fr)

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PCT/CN2020/083454 WO2020224365A1 (fr) 2019-05-03 2020-04-07 Décalage cce pdcch configurable

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104081710A (zh) * 2012-01-30 2014-10-01 诺基亚通信公司 用于控制信道的搜索空间布置
CN109392151A (zh) * 2017-08-11 2019-02-26 维沃移动通信有限公司 一种确定pdcch搜索空间的方法、装置及系统
CN109511172A (zh) * 2017-09-15 2019-03-22 三星电子株式会社 用于在无线通信系统中传输控制信息的方法和装置
CN109587791A (zh) * 2017-09-29 2019-04-05 北京展讯高科通信技术有限公司 一种控制资源集合的检测方法及装置、介质、设备

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109565877B (zh) * 2016-08-18 2022-07-08 Lg 电子株式会社 在支持未授权频带的无线通信系统中通过多个未授权分量载波发送上行链路信号的方法和支持该方法的设备

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104081710A (zh) * 2012-01-30 2014-10-01 诺基亚通信公司 用于控制信道的搜索空间布置
CN109392151A (zh) * 2017-08-11 2019-02-26 维沃移动通信有限公司 一种确定pdcch搜索空间的方法、装置及系统
CN109511172A (zh) * 2017-09-15 2019-03-22 三星电子株式会社 用于在无线通信系统中传输控制信息的方法和装置
CN109587791A (zh) * 2017-09-29 2019-04-05 北京展讯高科通信技术有限公司 一种控制资源集合的检测方法及装置、介质、设备

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