WO2019105232A1 - Combinaison de pdcchs d'informations de système restantes - Google Patents

Combinaison de pdcchs d'informations de système restantes Download PDF

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Publication number
WO2019105232A1
WO2019105232A1 PCT/CN2018/115486 CN2018115486W WO2019105232A1 WO 2019105232 A1 WO2019105232 A1 WO 2019105232A1 CN 2018115486 W CN2018115486 W CN 2018115486W WO 2019105232 A1 WO2019105232 A1 WO 2019105232A1
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WIPO (PCT)
Prior art keywords
items
control information
rmsi
pdcch
transmission parameter
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Ceased
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PCT/CN2018/115486
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English (en)
Inventor
Weijie Xu
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Priority to CN201880003544.XA priority Critical patent/CN110024463B/zh
Publication of WO2019105232A1 publication Critical patent/WO2019105232A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
    • 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 signalling, 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—Signalling for the administration of the divided path, e.g. signalling of configuration information
    • 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
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0023—Time-frequency-space
    • 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
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • 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
    • H04L5/0078—Timing of allocation
    • H04L5/0082—Timing of allocation at predetermined intervals
    • 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
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex
    • H04L5/1469—Two-way operation using the same type of signal, i.e. duplex using time-sharing

Definitions

  • Example aspects herein generally relate to the field of radio access networks and, more particularly, to the transmission of system information in a radio access network. More particularly still, example aspects herein relate to method (s) , a user equipment (UE) , and a radio base station (gNB) for combining a plurality of remaining system information (RMSI) PDCCHs transmitted in a radio access network.
  • UE user equipment
  • gNB radio base station
  • 5G NR new radio
  • eMBB enhanced mobile broadband
  • URLLC ultra-reliable low-latency communications
  • mMTC massive machine type communications
  • Key NR features include ultra-lean transmission, support for low latency, advanced antenna technologies, and spectrum flexibility including operation in high frequency bands, inter-working between high and low frequency bands, and dynamic time division multiplexing (TDD) .
  • TDD dynamic time division multiplexing
  • a user equipment In order to access a 5G network, a user equipment (UE) must receive and decode system information (SI) broadcast by the radio base station (gNB) of the cell in which the UE is present.
  • SI system information
  • gNB radio base station
  • SI system information
  • the minimum system information may be split into a master information block (MIB) and remaining minimum system information (RMSI) .
  • MIB master information block
  • RMSI remaining minimum system information
  • the minimum system information was agreed to include at least the information required by the UE in order to support cell selection, acquire further SI, and access the cell.
  • the 3GPP working groups that at least part of the minimum system information should be carried on the public broadcast channel (PBCH) . Owing to the relative sizes of the minimum system information and the payload size of the PBCH, the PBCH only carries very basic system information. Therefore, it was further agreed that the part of the minimum system information not carried on the NR-PBCH (approximately 200 bits) should be transmitted as the remaining minimum system information (RMSI) .
  • the RMSI may include a part or all random access channel (RACH) configuration information and also an indication of actually transmitted signal synchronisation (SS Blocks) . It was suggested that the RMSI should additionally include any further information, beyond that provided by the NR-PBCH, needed by a UE in order to camp on a cell.
  • RACH random access channel
  • SS Blocks actually transmitted signal synchronisation
  • RMSI is carried by the physical downlink shared channel (PDSCH) . More generally, the PDSCH is used for the transmission of downlink (DL) user data, UE-specific higher layer information, system information, and paging.
  • the PDSCH is scheduled using the physical downlink control channel (PDCCH) , which is used to carry items of control information such as downlink scheduling assignments and uplink scheduling grants.
  • PDCCH for RMSI scheduling should be carried in common search space (CSS) , that is, an area in the downlink resource grid and part of the overall PDCCH search space in which items of control information that are common to all UEs may be carried.
  • SCS common search space
  • a resource element (RE) is the smallest unit of the resource grid made up of one subcarrier in frequency domain and one OFDM symbol in time domain.
  • a resource element group (REG) is made up of one resource block (that is, 12 resource element in frequency domain) and one OFDM symbol in time domain.
  • a control channel element (CCE) is made up multiple REGs.
  • Transmission parameters of the PDCCH for RMSI scheduling may include the following:
  • Aggregation level indicates how many control channel elements (CCEs) are allocated for a PDCCH.
  • Control Resource Set (CORESET) : A CORESET is made up of multiples resource blocks in frequency domain and between 1 and 3 OFDM symbols in time domain. A PDCCH channel is confined to one CORESET. Therefore, depending on the aggregation level, the CCE to REG mapping of a CORESET can vary.
  • ⁇ PDCCH Candidates each of the possible locations in the downlink resource grid where a UE may find its PDCCHs is called a candidate. All possible PDCCH candidates make up the PDCCH search space. Each candidate corresponds to a CORESET and its location is defined as a CCE index (the CCE number at which the PDCCH is allocated) .
  • ⁇ Search Space the area in the downlink resource grid where one or more PDCCHs may be carried.
  • PDCCH for RMSI scheduling is carried in the common search space (CSS) of the PDCCH search space.
  • SCS common search space
  • the common search space may have different candidates or different numbers of candidates.
  • TTI Transmission Slot Index
  • the scheduling information of the PDCCH corresponding to the PDSCH carrying the RMSI is also carried in PBCH.
  • master information blocks (MIB) carried by the PBCH include parameters indicating a bandwidth for PDCCH/SIB (system information block) , a CORESET, a common search space and necessary PDCCH parameters, so that the UEs in the cell can access the items of control information carried by the PDCCH and, in turn, the RMSI.
  • SS/PBCH Synchronization/PBCH
  • Each SS/PBCH block may be associated a group (a plurality of items) of RMSI CORESETs, that is a plurality of candidate locations in the DL resource grid where a PDCCH carrying scheduling information for the PDSCH carrying the RMSI may be carried.
  • the UE When PBCH is successfully received by a UE in a particular SS/PBCH block, the UE will blindly detect (monitor) RMSI PDCCH in the associated group of RMSI CORESETs indicated by the PBCH.
  • the RMSI CORESETs may be offset from the SS/PBCH block in the frequency domain.
  • each item of control information carried on the PDCCH for scheduling RMSI and received by the UE may correspond to one or more particular respective monitoring windows. Furthermore each item of control information carried on the PDCCH for scheduling RMSI and received by the UE may correspond to a particular SS/PBCH block in the periodic SS/PBCH burst set. In addition, each item of control information carried on the PDCCH for scheduling RMSI and received by the UE may correspond to a particular transmission time interval (TTI) .
  • TTI transmission time interval
  • a monitoring resource may be defined as an object indicative of a time or frequency resource in the DL resource grid to which an item of control information carried on the PDCCH for scheduling RMSI and received by the UE may correspond.
  • a monitoring resource may comprises a RMSI physical downlink control channel, PDCCH, monitoring window, a RMSI PDCCH transmission time interval, TTI, and/or a synchronization signal physical broadcast channel (SS/PBCH) block within a SS/PBCH burst.
  • SS/PBCH synchronization signal physical broadcast channel
  • the present inventors have recognised that, based on the current agreements, items of control information transmitted on PDCCH for RMSI scheduling (RMSI PDCCH) corresponding to different monitoring resources may be transmitted with different transmission parameters (by way of non-limiting example, different aggregation levels, different PDCCH candidates, or different search space) . Such differences in transmission parameters may be disadvantageous because the RMSI PDCCH of different monitoring resources cannot be combined to improve the RMSI PDCCH detection performance.
  • the present inventors have devised a method in a user equipment, UE, of radio communications system.
  • the method comprises the steps of receiving a plurality of items of control information carried on corresponding PDCCHs for scheduling remaining minimum system information, RMSI, said PDCCHs being received with regard to a plurality of monitoring resources, wherein at least two of the plurality of items of control information correspond to different respective resources; and combining the plurality of items of control information, wherein the plurality of items of control information is transmitted using a same at least one transmission parameter.
  • the present inventors have also devised a method in a radio base station, gNB, of radio communications system.
  • the method comprises the step of transmitting a plurality of items of control information on corresponding PDCCHs for scheduling remaining minimum system information, RMSI, said PDCCHs being transmitted with regard to a plurality of monitoring resources, wherein at least two of the plurality of items of control information correspond to different respective resources, wherein the plurality of items of control information is transmitted using a same at least one transmission parameter.
  • the present inventors have further devised a computer program comprising instructions which, when executed, cause the computer to carry out the method set out above.
  • the present inventors have further devised a non-transitory computer-readable storage medium storing the computer program set out above.
  • the present inventors have further devised a signal carrying the computer program set out above.
  • the present inventors have further devised a corresponding user equipment, UE, and a corresponding radio base station, gNB, as defined in independent 15 and claims 24, respectively.
  • Fig. 1 is a schematic illustration of radio communications system according to an example aspect herein.
  • Fig. 2 is a schematic illustration showing a monitoring resource and a plurality of items of control information, according to an example aspect herein.
  • Fig. 3 is a schematic illustration showing examples of association between an SS/PBCH block providing the scheduling information of a PDCCH and the corresponding RMSI CORESET of that PDCCH which has scheduling information for the PDSCH carrying the RMSI.
  • Fig. 4 is a flow diagram illustrating a process by which the user equipment 100 of Fig. 1 combines a plurality of items of control information received on a plurality of monitoring resources for a remaining minimum system information, RMSI, according to an example aspect herein.
  • Fig. 5 is a flow diagram illustrating a process by which the radio base station 200 of Fig. 1 transmits a plurality of items of control information for remaining minimum system information, RMSI, according to an example aspect herein.
  • Fig. 6 is a block diagram illustrating an example signal processing hardware configuration of the user equipment 100 of Fig. 1, according to an example embodiment herein.
  • Fig. 7 is a block diagram illustrating an example signal processing hardware configuration of the radio base station 200 of Fig. 1, according to an example embodiment herein.
  • Fig. 1 is a schematic illustration of radio communications system 10 according to an example aspect herein.
  • the radio communications system 10 comprises a user equipment (UE) 100 and radio base station 200.
  • UE 100 is in radio communication with radio base station 200.
  • Radio base station 200 may, as in the present embodiment, be a 5G gNB (next generation NodeB) .
  • Radio base station 200 provides access to a radio communications network for UE 100 in cell 300, for example via beamforming.
  • the radio base station 200 serves a single UE 100.
  • the radio base station 200 may provide service to multiple UEs.
  • UE 100 may receive and decode system information (SI) transmitted by radio base station 200, including, inter alia, RMSI which is broadcast by the radio base station 200 on the PDSCH.
  • SI system information
  • UE 100 may receive and decode scheduling information of the PDCCH corresponding to the PDSCH carrying the RMSI. This scheduling information is transmitted on PBCH. UE 100 may also receive and decode relevant items of control information carried by the PDCCH for RMSI scheduling (RMSI PDCCH) .
  • RMSI PDCCH RMSI scheduling
  • UE 100 should be able to correctly receive and decode the items of control information transmitted on the PDCCH by radio base station 200. That is, any transmission errors should be correctable by UE 100 using, by way of non-limiting example, error correction code included in the encoded control information on the PDCCH by radio base station 200.
  • UE 100 may not be able to correct all transmission errors in the items of control information transmitted on the PDCCH. In this case, UE 100 will not be able to decode the items of control information transmitted on the PDCCH correctly and, therefore, will not be able to receive RMSI. As such, UE 100 will be prevented from accessing the network.
  • a UE may combine items of control information received on RMSI PDCCH to improve RMSI PDCCH detection performance.
  • Fig. 2 is a schematic illustration showing a monitoring resource 230 and a plurality of items of control information, according to an example aspect herein.
  • the monitoring resource 230 may, as in the present embodiment, be a RMSI PDCCH monitoring window 230 associated with an SS/PBCH block 210a, which recurs periodically.
  • items of control information carried on the PDCCH for scheduling RMSI are received by the UE in CORESETs 215. Items of control information and, therefore, CORESETs 215 may correspond to one or more particular respective monitoring windows 230.
  • each SS/PBCH block burst set 220 comprises two SS/PBCH blocks 210.
  • each SS/PBCH block burst set may comprise three or more SS/PBCH blocks.
  • Each monitoring window 230 may have a duration 235 of x consecutive slot (s) .
  • the duration 235 may be, by way of example, 1, 2, or 4 slots and the value of x may be frequency band dependent and/or configured in PBCH.
  • the start of the monitoring window 230 may, as in the present embodiment, be offset in time from the start of the SS/PBCH block 210a by a predetermined value 240. Alternatively, the start of the monitoring window 230 may not be offset in time from the start of the SS/PBCH block 210a.
  • the period 245, y, of the monitoring window may, as in the present embodiment, be the same as the period 225 of the SS/PBCH block burst set 220. Alternatively, the period 245 of the monitoring window may be different from the period 225 of the SS/PBCH block burst set.
  • the value y of the period 245 may be, for example, between 10ms and 160ms.
  • the value y of the period 245 may be any one of 10ms, 20ms, 40ms, 80ms, or 160ms.
  • the period 245 may be frequency band dependent, configured in PBCH and/or dependent on a RMSI transmission time interval (TTI) .
  • TTI transmission time interval
  • the transmission time interval is a duration of a transmission of a block of data on a radio link.
  • RMSI TTIs for down-selection may be 80ms or 160ms.
  • a monitoring resource may be defined as an object indicative of a time or frequency resource in the DL resource grid to which an item of control information carried on the PDCCH for scheduling RMSI and received by the UE may correspond.
  • a monitoring resource 230 may comprise a RMSI physical downlink control channel, PDCCH, monitoring window 230, a RMSI PDCCH transmission time interval, TTI, and/or a synchronization signal physical broadcast channel (SS/PBCH) block 210 within a SS/PBCH burst 220.
  • SS/PBCH synchronization signal physical broadcast channel
  • each item of control information carried on the PDCCH and the CORESET 215 in which it is received by the UE may correspond to a particular respective monitoring window 230.
  • each item of control information 215 carried on the PDCCH for scheduling RMSI and received by the UE may correspond to a particular one of the SS/PBCH blocks 210 in the periodic SS/PBCH burst set 220.
  • each item of control information 215 carried on the PDCCH for scheduling RMSI and received by the UE may correspond to a particular transmission time interval (TTI) .
  • TTI transmission time interval
  • an SS/PBCH block 210a providing the scheduling information of a PDCCH and the corresponding RMSI CORESET 215 of that PDCCH which has scheduling information for the PDSCH carrying the RMSI (that is, an item of control information) . This may be required where time resources are not sufficient to allow the RMSI CORESET 215 to be transmitted in a same slot as the SS/PBCH block 210a.
  • each SS/PBCH block 210a, 210b, 210c, 210d is shown in association with a single RMSI CORESET 215.
  • each SS/PBCH block 210 may also be associated a group (a plurality of items) of RMSI CORESETs 215, that is a plurality of candidate locations in the DL resource grid where a PDCCH carrying scheduling information for the PDSCH carrying the RMSI may be carried.
  • the UE will blindly detect (monitor) RMSI PDCCH in the associated group of RMSI CORESET 215 indicated by the PBCH.
  • Fig. 3 is a schematic illustration showing examples of an association between an SS/PBCH block 210 (210a –201c) providing the scheduling information of a PDCCH and the corresponding RMSI CORESET 215 of that PDCCH which has scheduling information for the PDSCH carrying the RMSI.
  • the RMSI CORESET 215a may be offset from the SS/PBCH block 210a in the time domain and in the frequency domain.
  • the RMSI CORESET 215b may be offset from the SS/PBCH block 210b in the time domain only.
  • the RMSI CORESET 215b may be offset from the SS/PBCH block 210b in the frequency domain only.
  • transmission parameters may differ between items of control information associated with different monitoring windows and/or between items of control information associated with different SS/PBCH blocks in the periodic SS/PBCH burst set and/or between different transmission time intervals.
  • Transmission parameters of the PDCCH for RMSI scheduling may include, by way of non-limiting example, the following:
  • Such differences in transmission parameters may be disadvantageous because it may not be possible to combine items of control information transmitted using different transmission parameters or combining items of control information transmitted using different transmission parameters may require excessive amounts of time or processing resources on behalf of UE 100. As such items of control information received on different monitoring resources cannot be combined to improve the RMSI PDCCH detection performance.
  • Fig. 4 is a flow diagram illustrating a process by which the user equipment 100 of Fig. 1 combines a plurality of items of control information received on a plurality of monitoring resources for a remaining minimum system information, RMSI, according to an example aspect herein.
  • UE 100 receives a plurality of items of control information, wherein each item of the plurality of items control information corresponds to a different resource of on the plurality of monitoring resources 230.
  • Each item of control information of the plurality of items of control information is transmitted using a same at least one transmission parameter. That is, each item of control information received may be transmitted with a same transmission parameter and for each monitoring resource of the plurality of monitoring resources 230, the at least one same transmission parameter of the corresponding item of control information has the same value.
  • a first RMSI PDCCH in a first monitoring window and a second RMSI PDCCH in a (subsequent) second monitoring window are transmitted by using the same transmission parameter (e.g. the same CORESET) which allows for an improved detection performance by combining the respective two items of control information for scheduling RMSI.
  • the at least one transmission parameter may be aggregation level and for each monitoring resource 230 of the plurality of monitoring resources, the aggregation level of the PDCCH for RMSI scheduling on which the corresponding item of control information is received may be 8.
  • the at least one transmission parameter may, as in the present embodiment, comprise a plurality of transmission parameters.
  • the plurality of transmission parameters may, as in the present embodiment, comprise aggregation level, PDCCH candidates, search space, RMSI PDCCH control resource set, CORESET, and transmission slot index.
  • the UE 100 may, as in the present embodiment, receive a value indicative of whether the same at least one transmission parameter is used.
  • the value may, as in the present embodiment, be a single bit value received on the physical broadcast channel, PBCH.
  • the UE may, as in the present embodiment, receive an indication on the PBCH of whether the transmission parameters of RMSI PDCCHs of different RMSI PDCCH monitoring windows and/or RMSI PDCCHs of different TTI and/or RMSI PDCCHs corresponding to different SS/PBCH blocks within one SS/PBCH burst set are used.
  • the parameters at least include aggregation levels and/or PDCCH candidates and/or search space and/or RMSI PDCCH CORESET and/or transmission slot index.
  • the indication may, as in the present embodiment, be provided to the UE as a single bit in PBCH payload. If the value of this bit is set to “1” , then totally same (that is, completely identical) transmission parameters are used for RMSI PDCCH of different RMSI PDCCH monitoring windows and/or RMSI PDCCHs of different TTI and/or RMSI PDCCHs corresponding to different SS/PBCH blocks within one SS/PBCH burst set.
  • the UE may perform PDCCH combination among different RMSI PDCCHs of different monitoring windows and/or RMSI PDCCHs of different TTI and/or RMSI PDCCHs corresponding to different SS/PBCH blocks within one SS/PBCH burst set, as discussed above.
  • the reception by the UE 100 of the value indicative of whether the same at least one transmission parameter is used may allow the UE 100 to combine the plurality of items of control information in some circumstances, while maintaining flexibility in the choice of transmission parameters because it can be signalled to the UE 100, whether or not the same at least one transmission parameter is used.
  • the value of each of the at least one transmission parameter may be set as a respective predetermined value for all monitoring resources.
  • the transmission parameters of RMSI PDCCHs of different RMSI PDCCH monitoring windows and/or RMSI PDCCHs of different TTI and/or RMSI PDCCHs corresponding to different SS/PBCH blocks within one SS/PBCH burst set use the same transmission parameters, for example, the same aggregation levels and/or the same PDCCH candidates and/or the same search space and/or the same RMSI PDCCH CORESET and/or the same transmission slot index.
  • the UE can perform PDCCH combination among different RMSI PDCCHs of different monitoring windows and/or RMSI PDCCHs of different TTI and/or RMSI PDCCHs corresponding to different SS/PBCH blocks within one SS/PBCH burst set, as discussed above.
  • the UE combines the plurality of items of control information. As discussed above, by combining the plurality of items of control information corresponding to the plurality of monitoring resources, the UE may be able to improve RMSI PDCCH detection performance.
  • Fig. 5 is a flow diagram illustrating a process by which the radio base station 200 of Fig. 1 transmits a plurality of items of control information for remaining minimum system information, RMSI, according to an example aspect herein.
  • the radio base station 200 sets, for each item of a plurality of items of control information to be transmitted, a same at least one transmission parameter, such that the plurality of items of control information can be combined.
  • each item of control information to be transmitted may have at least one transmission parameter which is the same transmission parameter and has the same value for all items of control information to be transmitted.
  • the at least one parameter may be aggregation level and for item of control information of the plurality of items of control information to be transmitted, the aggregation level may be set at 8.
  • the at least one transmission parameter may be, for example, anyone of: aggregation level; PDCCH candidates; search space; RMSI PDCCH control resource set, CORESET; and transmission slot index.
  • the at least one transmission parameter may, as in the present embodiment, comprise a plurality of transmission parameters.
  • the plurality of transmission parameters may comprise aggregation level, PDCCH candidates, search space, RMSI PDCCH control resource set, CORESET, and transmission slot index.
  • the radio base station 200 may, as in the present embodiment, set a same at least one transmission parameter for each item of a plurality of items of control information to be transmitted only in respect of certain pluralities of items of control information to be transmitted.
  • the pluralities of items of control information to be transmitted in respect of which the radio base station carries out process S20 may be determined by the radio base station 200 based on, for example, the respective capabilities of UEs (including UE 100) which are in cell 300 and to which the radio base station 200 provides network access or on network traffic.
  • the radio base station 200 may set a different value for the at least one same transmission parameter for different pluralities of items of control information to be transmitted, the value of the at least one transmission parameter being the same for each item of a given plurality of items of control information to be transmitted.
  • the radio base station 200 may, as in the present embodiment, transmit a value indicative of whether the same at least one transmission parameter is used.
  • the radio base station 200 may, as in the present embodiment, transmit the value prior to transmitting the plurality of items of control information to be transmitted.
  • the radio base station 200 may transmit the value at the same time as the plurality of items of control information to be transmitted.
  • the value transmitted by the radio base station 200 may be a single bit value transmitted on the a physical broadcast channel, PBCH.
  • the value of each of the at least one transmission parameter may be set as a respective predetermined value for all monitoring resources 230.
  • the transmission parameters of RMSI PDCCHs use the same transmission parameters, for example, the same aggregation levels and/or the same PDCCH candidates and/or the same search space and/or the same RMSI PDCCH CORESET and/or the same transmission slot index.
  • the radio base station 200 transmits the plurality of items of control information to be received on a plurality of monitoring resource 230 for a remaining minimum system information, RMSI.
  • the plurality of items of control information may, as in the present embodiment, be transmitted on a physical downlink control channel, PDCCH.
  • the radio base station 200 may transmit the plurality of items of control information to one or more UEs (including UE 100) which are in cell 300 and to which the radio base station 200 provides service.
  • the radio base station 200 transmits each item of control information of the plurality of items of control information using a same at least one transmission parameter such that the plurality of items of control information can be combined by the one or more UEs receiving the plurality of items of control information.
  • Fig. 6 is a block diagram illustrating an example signal processing hardware configuration 600 of the user equipment 100 of Fig. 1, according to an example embodiment herein.
  • the programmable signal processing hardware 600 if Fig. 6 may, as in the present example embodiment, be configured to function as UE 100 of Fig. 1.
  • the apparatus 600 may alternatively be implemented in non-programmable hardware, such as an application-specific integrated circuit (ASIC) or in any other suitable manner, using any suitable combination of hardware and software components, such that the UE comprises processing and communication functionalities necessary to operate in accordance with one or more conventional telecommunication standards, including –but not limited to –GSM, PCS, 3GPP, LTE, LTE-A, UMTS, 3G, 4G, 5G.
  • ASIC application-specific integrated circuit
  • the programmable signal processing hardware 600 comprises a transmitting/receiving section 610 and one or more antennae 605.
  • the signal processing apparatus 600 further comprises a control section (by way of example, a processor, such as a Central Processing Unit, CPU, or Graphics Processing Unit, GPU) 620, a working memory 630 (e.g. a random access memory) and an instruction store 640 storing the computer-readable instructions which, when executed by the control section 620, cause the processor 620 to perform the functions of the UE of Fig. 1.
  • a control section by way of example, a processor, such as a Central Processing Unit, CPU, or Graphics Processing Unit, GPU
  • working memory 630 e.g. a random access memory
  • an instruction store 640 storing the computer-readable instructions which, when executed by the control section 620, cause the processor 620 to perform the functions of the UE of Fig. 1.
  • the instruction store 640 may comprise a ROM (e.g. in the form of an electrically-erasable programmable read-only memory (EEPROM) or flash memory) which is pre-loaded with the computer-readable instructions.
  • the instruction store 640 may comprise a RAM or similar type of memory, and the computer-readable instructions of the computer program can be input thereto from a computer program product, such as a non-transitory, computer-readable storage medium 650 in the form of a CD-ROM, DVD-ROM, etc. or a computer-readable signal 660 carrying the computer-readable instructions.
  • Fig. 7 is a block diagram illustrating an example signal processing hardware configuration 700 of the radio base station 200 of Fig. 1, according to an example embodiment herein.
  • the programmable signal processing hardware 700 of Fig. 4 may, as in the present example embodiment, be configured to function as radio base station 200 of Fig. 1.
  • the apparatus 700 may alternatively be implemented in non-programmable hardware, such as an application-specific integrated circuit (ASIC) or in any other suitable manner, using any suitable combination of hardware and software components, such that the radio base station comprises processing and communication functionalities necessary to operate in accordance with one or more conventional telecommunication standards, including –but not limited to –GSM, PCS, 3GPP, LTE, LTE-A, UMTS, 3G, 4G, 5G.
  • ASIC application-specific integrated circuit
  • the programmable signal processing hardware 700 comprises a transmitting/receiving section 710 and one or more antennae 705.
  • the signal processing apparatus 700 further comprises a network communication interface 715, a control section (by way of example, a processor, such as a Central Processing Unit, CPU, or Graphics Processing Unit, GPU) 720, a working memory 730 (e.g. a random access memory) and an instruction store 740 storing the computer-readable instructions which, when executed by the control section 720, cause the processor 720 to perform the functions of the radio base station 200 of Fig. 1.
  • a control section by way of example, a processor, such as a Central Processing Unit, CPU, or Graphics Processing Unit, GPU
  • working memory 730 e.g. a random access memory
  • an instruction store 740 storing the computer-readable instructions which, when executed by the control section 720, cause the processor 720 to perform the functions of the radio base station 200 of Fig. 1.
  • the instruction store 740 may comprise a ROM (e.g. in the form of an electrically-erasable programmable read-only memory (EEPROM) or flash memory) which is pre-loaded with the computer-readable instructions.
  • the instruction store 740 may comprise a RAM or similar type of memory, and the computer-readable instructions of the computer program can be input thereto from a computer program product, such as a non-transitory, computer-readable storage medium 750 in the form of a CD-ROM, DVD-ROM, etc. or a computer-readable signal 760 carrying the computer-readable instructions.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé dans un équipement d'utilisateur, UE, (100) d'un système de communication radio (10) de combinaison d'une pluralité d'éléments d'informations de commande reçus concernant une pluralité de ressources de surveillance pour des informations de système minimales restantes, RMSI, le procédé consistant à : recevoir la pluralité d'éléments d'informations de commande, chaque élément de la pluralité d'informations de commande d'éléments correspondant à une ressource différente parmi la pluralité de ressources de surveillance (230); et combiner la pluralité d'éléments d'informations de commande, chaque élément d'informations de commande de la pluralité d'éléments d'informations de commande étant transmis à l'aide d'un même paramètre de transmission.
PCT/CN2018/115486 2017-11-28 2018-11-14 Combinaison de pdcchs d'informations de système restantes Ceased WO2019105232A1 (fr)

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US201762591744P 2017-11-28 2017-11-28
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CN110024463B (zh) 2020-09-01

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