Method and user equipment for wireless communication
Patent Information
- Application Number
- CN202311275850.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Priority Date
- 2017-11-17
- Filing Date
- 2018-11-19
- Publication Date
- 2026-09-15
- Estimated Expiration
- 2038-11-19
AI Technical Summary
[0009] By utilizing this invention, wireless communication can be improved.
Smart Images

Figure CN117353885B_ABST
Abstract
Description
[0001] This application is a divisional application of patent application No. 201880034044.2, with an international filing date of November 19, 2018, international application number PCT / CN2018 / 116161, entitled "Method for delivering and receiving information in a residual minimum system and user equipment". Technical Field
[0002] This invention relates to wireless communication, and more specifically to the delivery of system information in wireless communication systems. Background Technology
[0003] This background section is provided to generally present the context of the invention. The work of the currently named inventors, the work to the extent described in this background section, and aspects described herein that did not constitute prior art at the time of application are neither expressly nor impliedly acknowledged as prior art to the invention.
[0004] In 5th generation (5G) wireless communication systems, high-frequency bands (such as above 6 GHz) are used to improve system capacity. Beamforming schemes can be employed to focus transmitted and / or received signals in the desired direction to compensate for the undesirable path loss of high-frequency signals. For example, a base station (BS) can perform beam scanning to cover the service area. Summary of the Invention
[0005] A method for wireless communication includes: in a wireless communication system, a user equipment receiving a synchronization signal block from a base station, wherein the synchronization signal block includes a physical broadcast channel carrying a beam index (SBI), the physical broadcast channel providing configuration information for a residual minimum system information (RMIS) physical downlink control channel monitoring timing sequence, and the configuration information indicating a timing reference for the RMI physical downlink control channel monitoring timing and a residual minimum system information offset (D) between a time slot carrying a first RMI physical downlink control channel monitoring timing at the start of the RMI physical downlink control channel monitoring timing sequence, and two adjacent RMI physical downlink control channel monitoring timings in the RMI physical downlink control channel monitoring timing sequence. The remaining minimum system information interval T between the remaining minimum system information physical downlink control channel monitoring opportunities; decoding the physical broadcast channel of the synchronization signal block to obtain the beam index, the remaining minimum system information offset, and the remaining minimum system information interval of the synchronization signal block; and determining the timing of the remaining minimum system information physical downlink control channel monitoring opportunities relative to the timing reference in the remaining minimum system information physical downlink control channel monitoring opportunity sequence based on the obtained remaining minimum system information offset, the parameter set index for transmitting the remaining minimum system information physical downlink control channel carried in the remaining minimum system information physical downlink control channel monitoring opportunity, and the product of the beam index and the remaining minimum system information interval.
[0006] A method for wireless communication includes: transmitting a synchronization signal block from a base station to a user equipment in a wireless communication system, wherein: the synchronization signal block includes a physical broadcast channel carrying a beam index (SBI), the physical broadcast channel providing configuration information for a residual minimum system information (RMIS) physical downlink control channel monitoring timing sequence, and the configuration information indicating a timing reference for the RMI physical downlink control channel monitoring timing and a residual minimum system information offset (D) between a timing reference and a time slot carrying a first RMI physical downlink control channel monitoring timing at the start of the RMI physical downlink control channel monitoring timing sequence, and two phases in the RMI physical downlink control channel monitoring timing sequence. The remaining minimum system information interval T between adjacent remaining minimum system information physical downlink control channel monitoring opportunities; and the remaining minimum system information physical downlink control channel transmitted by the base station on the remaining minimum system information control resource set during the remaining minimum system information physical downlink control channel monitoring opportunity in the remaining minimum system information physical downlink control channel monitoring opportunity sequence, wherein the remaining minimum system information physical downlink control channel monitoring opportunity is determined based on the remaining minimum system information offset D, the parameter set index for transmitting the remaining minimum system information physical downlink control channel carried in the remaining minimum system information physical downlink control channel monitoring opportunity, and the product of the beam index and the remaining minimum system information interval.
[0007] A user equipment for wireless communication includes circuitry configured to: receive a synchronization signal block from a base station in a wireless communication system, wherein the synchronization signal block includes a physical broadcast channel carrying a beam index (SBI), the physical broadcast channel providing configuration information for a residual minimum system information (RMSI) physical downlink control channel monitoring timing sequence, and the configuration information indicating a timing reference for the RMS physical downlink control channel monitoring timing between a RMS physical downlink control channel monitoring timing sequence and a RMS offset D between a time slot carrying a first RMS physical downlink control channel monitoring timing at the start of the RMS physical downlink control channel monitoring timing sequence, and two RMS physical downlink control channel monitoring timing sequences. The remaining minimum system information interval T between adjacent remaining minimum system information physical downlink control channel monitoring opportunities; decoding the physical broadcast channel of the synchronization signal block to obtain the beam index, the remaining minimum system information offset, and the remaining minimum system information interval of the synchronization signal block; and determining the timing of the remaining minimum system information physical downlink control channel monitoring opportunities relative to the timing reference in the remaining minimum system information physical downlink control channel monitoring opportunity sequence based on the obtained remaining minimum system information offset, the parameter set index for transmitting the remaining minimum system information physical downlink control channel carried in the remaining minimum system information physical downlink control channel monitoring opportunity, and the product of the beam index and the remaining minimum system information interval.
[0008] A method for wireless communication includes: in a wireless communication system, a user equipment receiving a synchronization signal block from a base station, wherein the synchronization signal block includes a physical broadcast channel carrying a beam index SBI, the physical broadcast channel providing configuration information for a sequence of residual minimum system information physical downlink control channel monitoring (PMC) timings, each PMC timing having an index corresponding to a beam index of a synchronization signal block in a burst set of the synchronization signal block, and the configuration information indicating a timing reference between a residual minimum system information offset D between a time slot carrying a first residual minimum system information PMC monitoring timing at the start of the PMC timing sequence, and the residual minimum system information... The remaining minimum system information interval T between two consecutive even-indexed or odd-indexed physical downlink control channel monitoring timings in the physical downlink control channel monitoring timing sequence; decoding the physical broadcast channel of the synchronization signal block to obtain the beam index, the remaining minimum system information offset, and the remaining minimum system information interval of the synchronization signal block; and determining the timing of the remaining minimum system information physical downlink control channel monitoring timings in the remaining minimum system information physical downlink control channel monitoring timing sequence relative to the timing reference based on the obtained remaining minimum system information offset, the parameter set index of the physical downlink control channel used to transmit the remaining minimum system information physical downlink control channel carried in the remaining minimum system information physical downlink control channel monitoring timing, and the product of the beam index and the remaining minimum system information interval.
[0009] By utilizing this invention, wireless communication can be improved. Attached Figure Description
[0010] Various exemplary embodiments of the present invention will now be described with reference to the accompanying drawings, in which similar numbers refer to similar elements, wherein:
[0011] Figure 1 A beam-based wireless communication system according to an embodiment of the present invention is shown.
[0012] Figure 2 An exemplary Synchronization Signal Block (SSB) is shown for use in a system according to an embodiment of the present invention.
[0013] Figure 3 An exemplary SSB transmission configuration according to an embodiment of the present invention is shown.
[0014] Figure 4Exemplary frame structures corresponding to different sets of parameters or subcarrier spacings are shown in the system according to embodiments of the present invention.
[0015] Figure 5 A table showing an exemplary SSB configuration within a 5ms half-frame time window according to an embodiment of the present invention is provided.
[0016] Figures 6-8 Example Figure 5 SSB configuration for AE in case 2.
[0017] Figure 9 This illustrates a multiplexing pattern for SSB and Remaining Minimum System Information (RMSI) blocks according to an embodiment of the present invention.
[0018] Figure 10 Another SSB and RMSI block multiplexing mode is shown according to an embodiment of the present invention.
[0019] Figure 11 Another SSB and RMSI block multiplexing mode is shown according to an example of the present invention.
[0020] Figure 12 An exemplary configuration for delivering or receiving RMSI in system 100 is shown according to an example of the present invention.
[0021] Figure 13 The RMSI delivery or receiving process according to an embodiment of the present invention is illustrated.
[0022] Figure 14 An exemplary apparatus according to an embodiment of the present invention is shown. Detailed Implementation
[0023] Figure 1 A beam-based wireless communication system 100 according to an embodiment of the present invention is illustrated. System 100 may include User Equipment (UE) 110 and Base Station (BS) 120. In some examples, system 100 may employ 5G wireless communication technology developed under the 3rd Generation Partnership Project (3GPP). In some examples, in addition to technologies developed by 3GPP, system 100 may also employ beam-based technology.
[0024] In some examples, millimeter wave (mmW) bands and beamforming techniques can be employed in system 100. Accordingly, UE 110 and BS 120 can perform beamforming transmission (Tx) or reception (Rx). In beamforming Tx, radio signal energy can be focused in a specific direction to cover a target service area. Therefore, the antenna Tx gain can be increased compared to an omnidirectional antenna Tx. Similarly, in beamforming Rx, radio signal energy received from a specific direction can be combined to obtain a higher antenna Rx gain than an omnidirectional antenna Rx. The increased Tx or Rx gain can compensate for path loss or penetration loss in mmW signal transmission.
[0025] The BS120 can be a BS implementing a 5G node (gNode B, gNB), where the gNB node is defined in the 5G New Radio (NR) air interface standard developed by 3GPP. The BS120 can be configured to control one or more antenna arrays to form directional Tx or Rx beams to transmit or receive radio signals. In some examples, different sets of antenna arrays may be distributed in different locations to cover different service areas; each set of antenna arrays may be referred to as a Transmission Reception Point (TRP).
[0026] exist Figure 1In the example, BS120 can control TRP to form Tx beams 121-126 to cover cell 128. Beams 121-126 can be generated in different directions. In different examples, beams 121-126 can be generated simultaneously or at different time intervals. In one example, BS120 can be configured to perform beam sweep 127 to transmit downlink (DL) Layer 1 (L1) or Layer 2 (L2) control channel and / or data channel signals. During beam sweep 127, Tx beams 121-126 in different directions can be continuously formed in a time division multiplexing (TDM) manner to cover cell 128. During the time intervals for transmitting each beam 121-126, L1 / L2 control channel data and / or data channel data sets can be transmitted using each Tx beam. Beam sweep 127 can be repeated at a specific period. In another example, beams 121-126 can be generated in other ways besides performing beam scanning. For example, multiple beams pointing in different directions can be generated simultaneously. In other examples, with Figure 1 The examples in the text are different ( Figure 1 (The beams 121-126 in the TRP are generated horizontally), the BS120 can generate beams in different horizontal or vertical directions. In one example, the maximum number of beams generated from a single TRP can be 64.
[0027] In one example, beams 121-126 of cell 128 can be associated with an SSB, which can also be referred to as an SS / Physical Broadcast Channel (PBCH) block. For example, in an Orthogonal Frequency Division Multiplexing (OFDM) based system, an SSB can be contained in multiple consecutive OFDM symbols carrying SS (such as a Primary Synchronization Signal (PSS), Secondary Synchronization Signal (SSS)) and PBCH. For example, BS120 can periodically transmit an SSB sequence, which is also called an SSB burst set. SSB burst sets can be transmitted by performing beam scanning. For example, one of the beams 121-126 can be used to transmit each SSB in the SSB burst set. Each SSB in the SSB sequence can carry an SSB index, which indicates the timing or position of each SSB in the SSB sequence.
[0028] UE 110 can be a mobile phone, laptop, in-vehicle mobile communication device, or a utility meter fixed in a specific location. Similarly, UE 110 can employ one or more antenna arrays to generate directional Tx or Rx beams to transmit or receive radio signals. Although Figure 1 Only one UE 110 is shown, but multiple UEs can be distributed inside or outside cell 128, and are controlled by BS120 or other UEs not shown in the diagram. Figure 1 The BS service shown in the image. Figure 1 In the example, UE110 is within the coverage of cell 128.
[0029] UE 110 can operate in Radio Resource Control (RRC) connected mode, RRC inactive mode, or RRC idle mode. For example, when UE 110 operates in RRC connected mode, an RRC context can be established and made known to both UE 110 and BS120. The RRC context may contain parameters required for communication between UE 110 and BS120. UE 110's identity (ID) can be used for signaling between UE 110 and BS120, where the ID may include, for example, a Cell Radio Network Temporary Identifier (C-RNTI).
[0030] When UE 110 operates in RRC idle mode, no RRC context is established. UE 110 does not belong to a specific cell. For example, data transfer may not occur. UE 110 spends most of its time sleeping to conserve power and wakes up according to the paging cycle to monitor for paging messages from the network side of System 100. When triggered by a paging message (such as a system information update or connection establishment request), UE 110 can switch from RRC idle mode to RRC connected mode. For example, UE 110 can establish uplink (UL) synchronization, and an RRC context can be established between UE 110 and BS120.
[0031] When UE 110 operates in RRC inactive mode, UE 110 and BS120 can maintain the RRC context. However, similar to RRC idle mode, UE 110 can be configured for discontinuous reception (DRX). For example, UE 110 sleeps most of the time to save power and can wake up according to the paging cycle to monitor paging transmission. When triggered, UE 110 can immediately transition from RRC inactive mode to RRC connected mode to transmit or receive data, where the signaling operations utilized in transitioning from RRC inactive mode to RRC connected mode are fewer than those used in transitioning from RRC idle mode to RRC connected mode.
[0032] In one embodiment, BS120 can be configured to provide system information to the UE within cell 128. The system information may include common (non-UE-specific) information required by the UE for proper operation within system 100. The system information may be organized into different System Information Blocks (SIBs), each SIB including different types of system information. A first System Information Block (may be referred to as the Master Information Block (MIB)) may include the minimum system information and may be carried in the PBCH. The MIB may be periodically broadcast in cell 128 together with SSB129, for example, at periods of 5ms, 10ms, 20ms, 40ms, or 80ms.
[0033] The second system information block (which may be referred to as SIB 1 or RMSI) may include system information that the UE needs to know before accessing system 100. For example, SIB 1 may include information that the UE needs to perform initial random access. SIB 1 may be broadcast periodically in cell 128, for example, at a period of 160ms.
[0034] In addition to MIB and SIB 1, other SIBs may include system information that the UE does not need to know before accessing system 100. Similar to SIB 1, the aforementioned additional SIBs may also be broadcast periodically or transmitted as needed.
[0035] In one embodiment, RMSI or SIB 1 can be provided via a Physical Downlink Shared Channel (PDSCH), where the PDSCH can be scheduled using a Physical Downlink Control Channel (PDCCH). The PDSCH carrying the RMSI can be referred to as RMSIPDSCH. The PDCCH used for scheduling the RMSIPDSCH can be referred to as RMSIPDCCH. For example, the RMSIPDCCH can carry control information required by the UE to decode the RMSIPDSCH. For instance, the control information may include resource scheduling assignment and coding and modulation schemes for the transmission or decoding of the RMSIPDSCH.
[0036] In another embodiment, the PBCH can be configured to provide configuration information for the RMSIPDCCH, which can schedule RMSIPDSCH carrying RMSI. For example, a set of time-frequency resource elements (referred to as an RMSI control resource set, CORESET) can be configured to carry RMSIPDCCH. The PBCH can provide configuration information for the RMSI CORESET, allowing the UE to monitor each RMSI CORESET to detect the RMSIPDCCH based on the provided configuration information. For example, the configuration information for the RMSICORESET may include the size of the RMSI CORESET, the location of the RMSI CORESET within the OFDM resource grid, the search space associated with the RMSI CORESET, the parameter set for transmitting the RMSI CORESET and each RMSIPDSCH, and additional parameters.
[0037] Furthermore, in one embodiment, the timing of RMSIPDCCH transmission or monitoring can be configured using time / frequency association with the SSB. In one example, each RMSIPDCCH transmission or monitoring timing may include the RMSIPDCCH associated with each SSB. For example, as described above, SSB burst sets can be transmitted periodically. The SSBs in the SSB burst set can be transmitted along a set of beams transmitted in a beam scan. Accordingly, the RMSIPDCCH or the corresponding RMSICORESET can be transmitted using the beams corresponding to each associated SSB. When receiving RMSI, UE 110 can first synchronize using the SSB, and then continue monitoring the RMSIPDCCH within the RMSI CORESET corresponding to each associated SSB. For example, the timing of RMSI CORESET transmission can be determined based on the association and the configuration information provided by the PBCH in each SSB.
[0038] In one example, UE 110 may perform a cell search process to acquire system information. For instance, UE 110 may be powered on or initially enter the coverage area of system 100. UE 110 may perform a cell search to find a cell, and then perform random access to establish a connection. In another example, when UE 110 enters system 100 and enters cell 128, it may be in an idle or inactive state. UE 110 may similarly perform a cell search process to acquire system information from the new cell 128, and then perform random access to establish a connection within the new cell 128.
[0039] For example, during cell search processing, UE 110 can first synchronize with system 100 by receiving the PSS and SSS of the SSB. UE 110 can then decode the PBCH of the SSB to obtain the MIB. Based on the configuration information provided in the MIB, UE 110 can detect the RMSIPDCCH and obtain the scheduling information of the RMSIPDSCH. Subsequently, the RMSI can be obtained by decoding the RMSIPDSCH. Therefore, system information including the MIB and RMSI can be obtained. The RMSI can carry the configuration information required to perform random access to establish a connection with BS120.
[0040] Figure 2 An exemplary SSB 200 used in system 100 according to an embodiment of the present invention is shown. SSB 200 may include PSS 201, SSS 202, and PBCH 203 (indicated by shaded areas labeled 201, 202, and 203). Figure 2 As shown, the aforementioned signal can be carried in a resource element (RE) on the time-frequency resource grid. Additionally, the SSB 200 can carry DMRS (not shown) in a subset of the REs in the shaded area 203. In one example, the RE carrying the DMRS may not be used to carry the PBCH signal.
[0041] In one example, the SSB 200 can be distributed across 4 OFDM symbols in the time domain and occupy 20 resource block (RB) bandwidth in the frequency domain. Figure 2As shown, the four OFDM symbols can be numbered from 0 to 3, the 20 RB bandwidth can contain 240 subcarriers, and the 240 subcarriers can be numbered from 0 to 239. Specifically, PSS201 can occupy the REs at symbol 0 and subcarriers 56-182, SSS202 can occupy the REs at symbol 2 and subcarriers 56-182, and PBCH 203 can be located at symbols 1-3 and occupy 20 RBs at symbols 1 and 3 and 8 RBs (96 subcarriers) at symbol 2.
[0042] In one example, SSB 200 can be configured to carry the SSB index bits using the Demodulation Reference Signal (DMRS) and PBCH 203. In another example, the physical (PHY) layer cell ID can be determined by decoding PSS 201 and SSS 202. The cell ID indicates the cell associated with SSB 200.
[0043] Please note that the SSB in different examples may have the same characteristics as... Figure 2 Examples of different structures. For instance, the number of OFDM symbols in an SSB can be less than or greater than four. OFDM symbols carrying synchronization signals (SS) and OFDM symbols carrying PBCH can be arranged in different orders in the time domain. The bandwidth of the SSB can differ from... Figure 2 The bandwidth in the example. The REs allocated to the SS or PBCH can be more or less than... Figure 2 Examples are shown in the text.
[0044] Figure 3 An exemplary SSB transmission configuration 300 according to an embodiment of the present invention is shown. According to configuration 300, an SSB sequence 301 (also referred to as an SSB burst set 301) can be transmitted in a radio frame sequence at transmission periods 320 (e.g., 5, 10, 20, 40, 80, or 160 ms). The SSB burst set 301 can be confined to a half-frame Tx window 310 (e.g., 5 ms). Each configured SSB can have an SSB index (e.g., from #1 to #n). SSBs in the SSB set 301 can be configured as candidate SSBs but may not be used for actual SSB transmission.
[0045] For example, cell 340 may use six beams from #1 to #6 to cover the service area and transmit SSBs based on configuration 300. Accordingly, only a subset 330 of the SSB set 301 may be transmitted. For example, the transmitted SSBs 330 may include the first six candidate SSBs of the SSB set 301, where each candidate SSB corresponds to one of the beams #1-#6. Resources corresponding to the other candidate SSBs from #7 to #n can be used to transmit data other than SSBs.
[0046] Figure 4 Exemplary frame structures corresponding to different parameter sets or subcarrier spacings are shown in system 100 according to an embodiment of the present invention. Radio frame 410 may last 10 ms and contain 10 subframes, each lasting 1 ms. Corresponding to different parameter sets and subcarrier spacings, subframes may contain different numbers of slots. For example, for subcarrier spacings of 15 kHz, 30 kHz, 60 kHz, 120 kHz, or 240 kHz, subframes 420-460 may contain 1, 2, 4, 8, or 16 slots, respectively. In one example, each slot may contain 14 OFDM symbols. In another example, different frame structures may be used. For example, a slot may contain 7 or 28 OFDM symbols.
[0047] Figure 5 Table 500 illustrates an exemplary SSB configuration within a 5ms half-frame time window according to an embodiment of the present invention. The five rows in Table 500 show five case AEs of the SSB configuration. These five case AEs correspond to different subcarrier spacing configurations of the cell. For each case, the index of the first symbol of each SSB within the half-frame (e.g., 5ms) can be defined.
[0048] For example, in case A with a subcarrier spacing of 15 kHz, the first symbol of a candidate SSB can have a symbol index of {2, 8} + 14n. If the carrier frequency is less than or equal to 3 GHz, then n = 0, 1, corresponding to a total of L = 4 SSBs. Accordingly, the 4 candidate SSBs can have SSB indices arranged in ascending time order from 0 to 3. If the carrier frequency is greater than 3 GHz and less than or equal to 6 GHz, then n = 0, 1, 2, 3, corresponding to a total of L = 8 candidate SSBs. Accordingly, the 8 candidate SSBs can have SSB indices arranged in ascending time order from 0 to 7.
[0049] As another example, in case D with a subcarrier spacing of 120 kHz, the first symbol of a candidate SSB can have a symbol index of {4, 8, 16, 20} + 28n. If the carrier frequency is greater than 6 GHz, then n = 0, 1, 2, 3, 5, 6, 7, 8, 10, 11, 12, 13, 15, 16, 17, 18, corresponding to a total of L = 64 candidate SSBs. Accordingly, the 64 candidate SSBs can have SSB indices from 0 to 63 arranged in ascending time order.
[0050] Please note that in other examples, the same as can be used. Figure 5 The SSB configurations shown are different SSB configurations.
[0051] Figures 6-8 Example Figure 5 SSB configuration for AE in medium-term scenarios. Specifically, Figure 6 Six SSB configurations 601-606 are shown, corresponding to different subcarrier spacing and frequency band combinations. In each configuration 601-606, the time slots containing SSBs within a half-frame window are shown as shaded rectangle 610. Figure 7 and Figure 8 An enlarged diagram showing how SSB 701 or 801 is distributed across the symbol sequence in the time domain.
[0052] Figure 9 This illustration shows an SSB and RMSI block multiplexing mode 900 according to an embodiment of the present invention. As shown, SSB911-918 sequences belonging to an SSB burst set can be transmitted via beam scanning. Each SSB911-918 may have a beam index from #0 to #7. The RMSI block 921-928 sequences and SSB911-918 may be frequency division multiplexed (FDMed). Each RMSI block 921-928 may include: RMSI control blocks 921a-928a, representing a set of REs carrying RMSIPDCCH; and RMSI data blocks 921b-928b, representing a set of REs carrying RMSIPDSCH. Each RMSI block 921-928 may be associated with and correspond to each SSB. For example, each SSB911-918 can occupy 4 OFDM symbols, which can be multiplexed with 2 symbols of the RMSI control block and 2 symbols of the RMSI data block.
[0053] Figure 10Another SSB and RMSI block multiplexing mode 1000 according to an embodiment of the present invention is illustrated. As shown, SSB 1011-1012 sequences can be transmitted, wherein each SSB 1011-1012 can be associated with a beam index from #0 to #1. The SSB 1011-1012 sequences can be time-division multiplexed (TDMed) with the RMSI control block 1021a-1022a sequences, and can be frequency-division multiplexed with the RMSI data block 1021b-1022b sequences. Each RMSI data block 1021b-1022b can be scheduled by each RMSI control block 1021a-1022a. Each RMSI control block 1021a-1022a can be associated with each SSB 1011-1012, and can be quasi-co-located (QCLed) with each SSB, and can be transmitted using the same beam as each SSB.
[0054] In one example, SSB1011-1012 and RMSI control or data blocks can have different parameter sets. For instance, SSB1011-1012 can be transmitted with a subcarrier spacing of 30 kHz, while RMSI control or data blocks 1021a-1022a and 1021b-1022b can be transmitted with a subcarrier spacing of 15 kHz.
[0055] Figure 11 Another SSB and RMSI block multiplexing mode 1100 according to an example of the present invention is shown. As shown, with Figure 9 Similarly, the SSB1111-1118 sequence can be transmitted, where each SSB can be associated with beam indices from #0 to #7. The SSB1111-1118 sequence can be associated with and frequency-division multiplexed with the RMSI control blocks 1121a-1128a, and time-division multiplexed with the RMSI data blocks 1121b-1128b. Each RMSI control block (PDCCH) 1121a-1128a can schedule each RMSI data block (PDSCH) 1121b-1128b. Since the RMSI control blocks and the data blocks reside in different time slots, this scheduling method can be called cross-slot scheduling.
[0056] In one example, SSB1111-1118 and RMSI control blocks or data blocks 1121a-1128a and 1121b-1128b can have different parameter sets. For example, SSBs can be transmitted with a subcarrier spacing of 30 kHz, while RMSI control and data blocks can be transmitted with a subcarrier spacing of 15 kHz. Figure 7Each SSB can occupy 4 symbols, and the corresponding RMSI control block can occupy 2 symbols. The cross-slot mechanism enables the delivery of RMSI data blocks using sufficient resources that are a certain distance away from each RMSI control block.
[0057] Figure 12 An exemplary configuration 1200 for delivering or receiving RMSI in system 100 according to an example of the present invention is shown. As shown, an SSB burst set 1210 can be transmitted from BS 120 within an initial Bandwidth Part (BWP) 1201, wherein the SSB burst set 1210 may include the SSB 1211-1218 sequence, SSB 1211-1218 may have beam indices from #0 to #7. The initial BWP 120 can be predefined such that UE 110 can search for SSBs on the initial BWP to perform cell search processing. The SSB 1211-1218 sequence can be transmitted by performing beam scanning using the transmission beams indexed #0 to #7.
[0058] Figure 12 The diagram also shows the first RMSIPDCCH monitoring timing (RMSI timing) sequence 1221-1228 and the second RMSI timing sequence 1231-1238. The RMSI timing sequences (e.g., the first or second RMSI timing sequences) can be periodically transmitted using an RMSI transmission period of Yms 1206. For example, in one example, the RMSI transmission period 1206 could be 20ms. Additionally, the RMSIs corresponding to RMSI timings 1221-1228 and 1231-1238 can have a transmission time interval (TTI) 1203, such as a TTI of 80 or 160ms.
[0059] In one example, each RMSI timing can be associated with an SSB. For instance, the RMSIPDCCH (or corresponding CORESET) carried in RMSI timing 1221 can be quasi-co-located with SSB 1211. Therefore, the channel properties of the channels used to transmit SSB 1211 and each RMSIPDCCH of RMSI timing 1221 can be similar. Accordingly, each RMSI timing 1221-1228 can be labeled with... Figure 12 The associated SSBs share the same beam index, where the same beam index can indicate the quasi-isotropy association between the SSB and each RMSIPDCCH of the RMSI timing.
[0060] Each RMSI timing can have the same size in the time domain and can last for one or more time slots, where each time slot can correspond to a set of parameters used to transmit each RMSIPDCCH. Based on the number of time slots in each RMSI timing, an RMSI monitoring window 1205 can be defined to monitor the RMSIPDCCH in each RMSI timing. For example, the RMSI monitoring window 1205 can last for X time slots, where X time slots can be equal to the number of time slots in the RMSI timing.
[0061] exist Figure 12 In the example, each RMSI timing may correspond to one SSB, thus carrying one RMSIPDCCH and possibly one RMSIPDSCH. For example, a single-slot RMSI timing corresponding to RMSI timing 1222 is shown. In another example, cross-slot scheduling can be used, so the RMSIPDSCH may not be carried in the same slot as each RMSIPDCCH.
[0062] Figure 12 The diagram also shows an RMSI timing interval 1204 (denoted as T) between consecutive RMSI timings. In one example, the RMSI timing sequence 1221-1228 or 1231-1238 can be uniformly distributed in the time domain. In different examples, the RMSI timing interval 1204 can last for one or more time slots, which can correspond to the parameter set used to transmit each PDCCH. Although two consecutive RMSI timings (e.g., 1221 and 1222) are shown separated by a certain distance, in another example, the RMSI timing interval 1204 can be equal to the RMSI monitoring window 1205 (equal to the elapsed time of one RMSI timing). Therefore, two consecutive RMSI timings can be adjacent to each other.
[0063] Figure 12 Also shown is an RMSI offset (denoted as D) 1202, which indicates the time offset between the timing reference 1207 and the time slot carrying the RMSIPDCCH monitoring opportunity 1221, wherein the monitoring opportunity 1221 is at the beginning of the first sequence of RMSIPDCCH monitoring opportunities 1221-1228. Figure 12 In one example, timing reference 1207 may be the start point of the time slot carrying the first SSB 1211. Accordingly, RMSI offset 1202 may indicate the timing offset between the time slot carrying the first SSB 1211 and the time slot carrying the first RMSI timing 1221, where the first RMSI timing 1221 follows the SSB burst set 1210. In other examples, timing reference 1207 may be related to... Figure 12The differences are illustrated below. For example, the timing reference can be a reference point for the starting position of a sequence of frames transmitted within a period. For example, the aforementioned period can be 20ms, 40ms, and 80ms, etc. For example, timing reference 1207 can be a starting slot every 20ms. Or in other words, timing reference 1207 can be the starting slot of a frame with a System Frame Number (SFN) that is a multiple of 2 (e.g., SFN mod 2 = 0). Since SSB burst sets can have different periods (e.g., 5, 10, 20, 40, 80, or 160ms), the starting slot corresponding to timing reference 1207 may not carry an SSB.
[0064] In one embodiment, based on Figure 12 As shown in the configuration, UE 110 can determine the timing (start time) of the first slot of the RMSI timing during cell search processing. For example, configuration parameters including RMSI offset 1202(D) and RMSI timing interval 1204(T) can be carried in the PBCH of the SSB with an index (denoted as SBI). UE 110 decodes the PBCH in the SSB to obtain configuration information and determines the timing (or RMSI timing) of the RMSI timing associated with the SSB according to the following formula:
[0065] RMSI timing (in milliseconds or time slots) = D + SBI * T (1)
[0066] D and T are provided in milliseconds (ms) or time slots, and the RMSI timing can be the start time relative to timing reference 1207 (e.g., a time slot carrying the first SSB 1211, or a time slot without SSB 1211).
[0067] For example, UE 110 can select SSB1212 and decode the PBCH of SSB1212 to obtain configuration parameters (D and T) related to RMSI delivery. Since the index of SSB1212 is #1, the SBI can be 1. According to Equation (1), the RMSI timing corresponding to RMSI timing 1222 can be determined as D+T ms or time slots relative to each timing reference. For example, each timing reference can be a starting time slot every 20ms. UE 110 can monitor the RMSI timing at the determined RMSI timing, where the determined RMSI timing is a first starting time slot relative to the first frame with SFN mod 2 = 0. If no RMSIPDCCH is detected, UE 110 can continue to monitor another RMSI timing at the determined RMSI timing, where the determined RMSI timing is a second starting time slot relative to the second frame with SFN mod 2 = 0.
[0068] In one example, the RMSI monitoring window 1205 (X time slots or ms) can have the same length as the RMSI timing interval 1204, and accordingly, the above formula can be transformed into:
[0069] RMSI timing = D + SBI * X (2)
[0070] While ms can be used as a time unit in the example above, it is understandable that other time units (such as seconds) can also be used to determine the timing of RMSI events.
[0071] In another embodiment, equation (1) or equation (2) can also be transformed to determine the timing of RMSI timings in slot units. For example, the RMSI offset (given as D ms) 1202 in slot units and the RMSI timing interval (given as T ms) 1204 in slot units can be expressed as:
[0072] D* Number of time slots per ms;
[0073] T* is the number of time slots per ms.
[0074] For reference Figure 4 As mentioned above, corresponding to subcarrier spacing of 15kHz, 30kHz, 60kHz, 120kHz, or 240kHz, each subframe 420-460 may include 1, 2, 4, 8, or 16 time slots. Therefore, the RMSI offset in time slots and the RMSI timing interval in time slots can be expressed as:
[0075] D*2 μ ;
[0076] T*2 μ ,
[0077] Here, μ is a numberology index ranging from 0 to 4, corresponding to subcarrier spacings from 15 kHz to 240 kHz. For example, for μ = 3, 1 ms can include 2... μ = 8 time slots.
[0078] Accordingly, the timing of the RMSI timing associated with the SSB (with indexed SBI) can be determined according to the following formula:
[0079] RMSI timing (in time slots) = D * 2 μ +SBI*T*2 μ (3)
[0080] D and T are provided in several ms, and the timing of the RMSI timing can be the number of time slots relative to the first time slot carrying SSB 1211.
[0081] In one example, the timing of the RMSI timing associated with the SSB (with indexed SBI) can be determined according to the following formula:
[0082] in The number of time slots in the frame corresponding to the parameter set with index μ is represented by the number of time slots relative to the start of the frame containing the RMSI time slot in equation (4).
[0083] In one embodiment, the RMSI timing interval (T) 1204 can be configured to have a period of one time slot (correspondingly, each RMSI timing can last for one time slot). Under this configuration, the timing of the RMSI timing associated with the SSB (with an indexed SBI) can be determined according to the following formula:
[0084]
[0085] T′ = 1 time slot
[0086] In one embodiment, the RMSI offset 1202 may have a length of 0, 2, 5, or 7 ms corresponding to a parameter set configuration of 15 or 30 kHz subcarrier spacing, or a length of 0, 2.5, 5, or 7.5 ms corresponding to a parameter set configuration of 120 or 240 kHz subcarrier spacing.
[0087] For example, in a configuration where the RMSI timing interval is T = 1 slot, the RMSI offset (Dms) 1202 length is 7 ms, and the parameter set is μ = 0 (15 kHz), the timing of the RMSI timing corresponding to beam index SBI = 3, relative to the slot carrying the first SSB 1211, can have a length of 10 slots. In equation (5), each frame can include 10 slots ( According to Equation (5), after the modulo operation, the RMSI timing in units of time slots can be 1 time slot, which can correspond to the first time slot in the frame following the previous frame carrying the SSB burst set 1210.
[0088] In one embodiment, a different method can be used. Figure 12Here's an example of how to configure RMSI timing. For instance, an RMSI timing sequence could correspond to an SSB burst set comprising eight beam indices from #0 to #7, with the RMSI timings corresponding to indices from #0 to #7. Every two consecutive RMSI timings corresponding to even and odd indices (e.g., #0 and #1, #2 and #3, etc.) can be arranged adjacent to each other, for example, carried in the same time slot. In one example, a pair of adjacent RMSI timings could be arranged in the first and second symbols of each time slot, respectively. In other examples, a pair of adjacent RMSI timings could be arranged in other symbols of each time slot.
[0089] Under the above configuration, the RMSI timing interval T can be defined as the interval between two consecutive even-index RMSI timings or two consecutive odd-index RMSI timings. For example, T can be the interval between RMSI timings #0 and #2 or #1 and #3. Accordingly, for even-index or odd-index RMSI timings, the timing sequence of each RMSI timing can be determined according to the following formula:
[0090]
[0091] in The floor operator (D) and SBI are defined as follows: Figure 12 Similar examples.
[0092] It can be seen that equation (6) is similar to equation (1), but SBI in equation (1) can be replaced with The RMSI timing interval T can refer to the interval between two consecutive even or odd-indexed RMSI timings. Similarly, equations (2)-(5) can also be transformed into forms suitable for the above configuration.
[0093] Figure 13 An RMSI delivery or reception process 1300 according to an embodiment of the present invention is illustrated. Process 1300 can be performed by... Figure 1 In the example, this is performed by BS120 and UE110 in system 100. In process 1300, the timing of the time slot corresponding to the RMSIPDCCH monitoring timing can be determined based on the configuration information provided by the PBCH in the SSB. The RMSIPDCCH monitoring timing can be associated with the SSB. The configuration information may include the RMSI offset (D) and the RMSI timing interval (T). By performing process 1300, each RMSI can be received from BS120 at UE110. Process 1300 may begin at S1310.
[0094] In S1310, an SSB can be transmitted from BS120 to UE110. The SSB can be one of a set of SSB bursts, which can be transmitted using beam scanning to cover cell 128. Each SSB in the SSB burst set can be associated with a beam index as an ID. Each SSB in the SSB burst can include a PBCH, which can carry a beam index and configuration information for RMSI reception. The configuration information for RMSI reception can include or indicate configuration information for the RMSIPDCCH monitoring timing (RMSI timing). In one example, each RMSI timing can be associated with one SSB in the SSB burst set.
[0095] The configuration information for RMSI timing can include the RMSI offset (D) between the timing reference (e.g., the starting time slot every 20ms) and the time slot of the first RMSI timing carrying the RMSI timing sequence, as well as the RMSI interval (T) between RMSI timings. In different examples, the RMSI offset (D) or the RMSI interval (T) can be expressed as a number of time units (e.g., ms) or as a number of time slots.
[0096] In one example, the configuration information for RMSI reception in the PBCH can be indicated using indexes corresponding to entries in a table to specify the configuration information for the RMSI timing. For example, different entries in the table can correspond to different configurations, such as frequency band configuration, different parameter sets, RMSI timing, and SSB multiplexing mode. The UE 110 can decode the PBCH to obtain the aforementioned entry indexes and consult the table to obtain the configuration information for the RMSI timing.
[0097] Additionally, the configuration information for RMSI reception may include supplementary configuration information required for RMSI reception. For example, the supplementary configuration information may define the size of the core set carrying each PDCCH, the position of the core set in the time and frequency grid, the parameter set of the core set, etc. Similarly, as described above, this supplementary configuration information can also be organized into the table mentioned above, and the supplementary configuration information can be indicated using the entry index in the PBCH configuration information.
[0098] In S1312, UE 110 can receive the SSB transmitted in S1310 and synchronize it with BS120 accordingly. For example, the SSB can carry PSS and SSS. By detecting the PSS and SSS, UE 110 can tune to synchronize with the downlink transmission of BS120.
[0099] In S1314, UE 110 can decode the PBCH of the SSB transmitted in S1310 to obtain the beam index and configuration information of the SSB for RMSI reception, wherein the configuration information may include configuration information indicating the timing of RMSI.
[0100] In S1316, UE 110 can determine the timing of RMSI PDCCH monitoring based on the beam index and configuration for RMSI reception obtained in S1314. For example, refer to Figure 12 One of the equations (1) to (5) described, as well as equation (6) and the various transformed expressions corresponding to equations (2) to (5), can be used to determine the timing of RMSIPDCCH monitoring.
[0101] In S1318, BS120 can transmit RMSIPDCCH on the RMSI CORESET. The RMSIPDCCH can carry scheduling information for the PDSCH, wherein the PDSCH can carry the RMSI to be received by UE 110. The RMSI CORESET can be included in the time slots included in the RMSIPDCCH monitoring timing, the timing of which can be determined in S1316, so that UE 110 can capture each RMSIPDCCH in the RMSI CORESET by monitoring the RMSI CORESET in the RMSI monitoring timing determined in S1316.
[0102] In S1320, UE 110 can monitor RMSICORESET to detect RMSIPDCCH based on the timing determined in S1318 during the RMSIPDCCH monitoring period. Therefore, the scheduling information of each RMSIPDCCH can be obtained.
[0103] In S1322, RMSI can be transmitted from BS120 to UE 110 on RMSIPDSCH.
[0104] In S1324, UE 110 can detect and decode RMSIPDSCH based on the scheduling information obtained in S1320. Therefore, the RMSI carried on the RMSIPDSCH can be obtained at UE 110. After this, processing 1300 can end.
[0105] Figure 14An exemplary apparatus 1400 according to an embodiment of the present invention is shown. Apparatus 1400 can be configured to perform various functions described in one or more embodiments or examples according to the present invention. Therefore, apparatus 1400 can provide means for implementing the techniques, processes, functions, components, and systems described in the present invention. For example, apparatus 1400 can be used to implement the functions of UE 110 or BS 120 in various embodiments and examples described in the present invention. In some embodiments, apparatus 1400 may be a general purpose computer, while in other embodiments, apparatus 1400 may be a device including specially designed circuitry for implementing the various functions, components, or processes described in the present invention. Apparatus 1400 may include processing circuitry 1410, memory 1420, and radio frequency (RF) module 1430.
[0106] In various examples, the processing circuitry 1410 may include circuitry configured to perform the functions and processes described in this invention, which may be implemented in conjunction with or without software. In various examples, the processing circuitry may be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a programmable logic device (PLD), a field-programmable gate array (FPGA), digital enhancement circuitry, or equivalent devices or combinations thereof.
[0107] In some other examples, processing circuitry 1410 may be a central processing unit (CPU) for executing program instructions to perform the various functions and processes described in this invention. Accordingly, memory 1420 may be used to store program instructions. When program instructions are executed, processing circuitry 1410 can perform the aforementioned functions and processes. Memory 1420 may also store other programs or data, such as operating systems (OS) and application programs. Memory 1420 may include read-only memory (ROM), random access memory (RAM), flash memory, solid-state memory, hard disk drives, and optical disk drives, etc.
[0108] RF module 1430 receives processed data signals from processing circuitry 1410 and transmits these signals via antenna 1440 in a beamforming wireless communication network; conversely, it transmits them back and forth. RF module 1430 may include a digital-to-analog converter (DAC), an analog-to-digital converter (ADC), a frequency up-converter, a frequency down-converter, filters, and amplifiers for receiving and transmitting operations. RF module 1430 may include multi-antenna circuitry (such as an analog signal phase / amplitude control unit) for beamforming operations. Antenna 1440 may include one or more antenna arrays.
[0109] Device 1400 may optionally include other components, such as input and output devices and additional signal processing circuitry. Accordingly, device 1400 may be capable of performing other additional functions, such as executing application programs and handling additional communication protocols.
[0110] While aspects of the invention have been described in conjunction with specific embodiments, these embodiments are presented as examples and can be substituted, modified, and altered. Accordingly, the embodiments set forth in this invention are intended to be illustrative and not restrictive. Changes may be made without departing from the scope set forth in the claims.
Claims
1. A method for wireless communication, comprising: In a wireless communication system, the user equipment receives a synchronization signal block from the base station, in which... The synchronization signal block includes a physical broadcast channel, which carries a beam index (SBI). The physical broadcast channel provides configuration information for the remaining minimum system information and the physical downlink control channel monitoring timing sequence. The configuration information indicating timing reference of the remaining minimum system information physical downlink control channel monitoring timing and the remaining minimum system information offset D between the time slot carrying the first remaining minimum system information physical downlink control channel monitoring timing at the start of the remaining minimum system information physical downlink control channel monitoring timing sequence, and the remaining minimum system information interval T between two adjacent remaining minimum system information physical downlink control channel monitoring timings in the remaining minimum system information physical downlink control channel monitoring timing sequence; Decode the physical broadcast channel of the synchronization signal block to obtain the beam index, the remaining minimum system information offset, and the remaining minimum system information interval of the synchronization signal block; as well as Based on the product of the beam index and the remaining minimum system information interval, the obtained remaining minimum system information offset, and the parameter set index for transmitting the remaining minimum system information physical downlink control channel carried in the remaining minimum system information physical downlink control channel monitoring timing, the timing of the remaining minimum system information physical downlink control channel monitoring timing in the remaining minimum system information physical downlink control channel monitoring timing sequence relative to the timing reference is determined.
2. The method for wireless communication of claim 1, wherein, The timing reference is a reference point for the starting position of a frame sequence transmitted within a period.
3. The method for wireless communication of claim 1, wherein, Also includes: According to the determined timing of the remaining minimum system information physical downlink control channel monitoring timing, the remaining minimum system information control resource set is monitored during the remaining minimum system information physical downlink control channel monitoring timing to detect the remaining minimum system information physical downlink control channel, wherein the remaining minimum system information control resource set carries the remaining minimum system information physical downlink control channel, the remaining minimum system information physical downlink control channel carries scheduling information of the physical downlink shared channel, wherein the physical downlink shared channel carries the remaining minimum system information; and The remaining minimum system information is obtained by decoding the physical downlink shared channel based on the scheduling information.
4. The method for wireless communication of claim 1, wherein, Also includes: The timing of the remaining minimum system information physical downlink control channel monitoring relative to the timing reference is determined according to the following formula: the timing of the remaining minimum system information physical downlink control channel monitoring occasion in units of slots , wherein the remaining minimum system information offset and the remaining minimum system information interval are provided in number of milliseconds, μ is an index of a numerology, the index of the numerology indicating one of a predetermined set of different subcarrier spacings used for transmitting a remaining minimum system information physical downlink control channel carried in the remaining minimum system information physical downlink control channel monitoring occasion, such that 2 µ indicates the number of slots included per millisecond.
5. The method for wireless communication of claim 1, wherein, Also includes: The timing of the remaining minimum system information physical downlink control channel monitoring timing relative to the start time of the frame containing the remaining minimum system information physical downlink control channel monitoring timing is determined according to the following formula: the timing of the remaining minimum system information physical downlink control channel monitoring occasion in units of slots within a frame , The residual minimum system information offset and the residual minimum system information interval are provided in milliseconds. This represents the number of time slots in the frame corresponding to the parameter set with index μ, where μ is the index of the parameter set, which indicates one of a predetermined set of different subcarrier intervals of the Remaining Minimum System Information Physical Downlink Control Channel (RPLC) carried during the Remaining Minimum System Information Physical Downlink Control Channel (RPLC) monitoring timing, such that 2 µ Indicates the number of time slots included per millisecond.
6. The method for wireless communication as described in claim 5, characterized in that, Also includes: The timing of the residual minimum system information physical downlink control channel monitoring timing relative to the start time of the frame containing the residual minimum system information physical downlink control channel monitoring timing is determined according to the following formula: The timing of the remaining minimum system information physical downlink control channel monitoring timing in units of intra-frame time slots Each time slot The residual minimum system information offset is provided in milliseconds, and the duration of the residual minimum system information interval is equal to a time slot corresponding to the parameter set with index μ.
7. The method for wireless communication as described in claim 1, characterized in that, Each of the remaining minimum system cyber-physical downlink control channel monitoring timing sequences includes the remaining minimum system cyber-physical downlink control channel.
8. The method for wireless communication as described in claim 1, characterized in that, The remaining minimum system information interval includes one or more time slots corresponding to the parameter set of the remaining minimum system information physical downlink control channel monitoring timing sequence.
9. The method for wireless communication as described in claim 1, characterized in that, Each of the remaining minimum system cyber-physical downlink control channel monitoring timing sequences includes one or more time slots corresponding to the parameter set of the remaining minimum system cyber-physical downlink control channel monitoring timing sequence.
10. A method for wireless communication, comprising: In a wireless communication system, a synchronization signal block is transmitted from the base station to the user equipment, wherein: The synchronization signal block includes a physical broadcast channel, which carries a beam index (SBI). The physical broadcast channel provides configuration information for the remaining minimum system information and the physical downlink control channel monitoring timing sequence. The configuration information indicating timing reference of the remaining minimum system information physical downlink control channel monitoring timing and the remaining minimum system information offset D between the timing reference and the time slot carrying the first remaining minimum system information physical downlink control channel monitoring timing at the start of the remaining minimum system information physical downlink control channel monitoring timing sequence, and the remaining minimum system information interval T between two adjacent remaining minimum system information physical downlink control channel monitoring timings in the remaining minimum system information physical downlink control channel monitoring timing sequence; and The base station transmits the Remaining Minimum System Information (RMIS) Physical Downlink Control Channel (PHSC) on the Remaining Minimum System Information (RMIS) Control Resource Set during the Remaining Minimum System Information (RMIS) Physical Downlink Control Channel (PHSC) Monitoring Timing Sequence. The Remaining Minimum System Information (RMIS) Physical Downlink Control Channel (PHSC) Monitoring Timing is determined based on the product of the beam index and the Remaining Minimum System Information (RMIS) interval, the Remaining Minimum System Information (RMIS) offset D, and the parameter set index used to transmit the Remaining Minimum System Information (RMISC) Physical Downlink Control Channel carried during the Remaining Minimum System Information (RMISC) Physical Downlink Control Channel (PHSC) Monitoring Timing.
11. The method for wireless communication as described in claim 10, characterized in that, Also includes: The base station transmits the remaining minimum system information physical downlink control channel carrying scheduling information of the physical downlink shared channel, wherein the physical downlink shared channel carries the remaining minimum system information; as well as Transmit the remaining minimum system information via a physical downlink shared channel.
12. The method for wireless communication as described in claim 10, characterized in that, Each of the remaining minimum system cyber-physical downlink control channel monitoring timing sequences includes the remaining minimum system cyber-physical downlink control channel.
13. The method for wireless communication as described in claim 10, characterized in that, The remaining minimum system information interval includes one or more time slots corresponding to the parameter set of the remaining minimum system information physical downlink control channel monitoring timing sequence.
14. The method for wireless communication as described in claim 10, characterized in that, Each of the remaining minimum system cyber-physical downlink control channel monitoring timing sequences includes one or more time slots corresponding to the parameter set of the remaining minimum system cyber-physical downlink control channel monitoring timing sequence.
15. A user equipment for wireless communication, comprising circuitry configured to: In a wireless communication system, a synchronization signal block is received from the base station, where... The synchronization signal block includes a physical broadcast channel, which carries a beam index (SBI). The physical broadcast channel provides configuration information for the remaining minimum system information and the physical downlink control channel monitoring timing sequence. The configuration information indicating timing reference of the remaining minimum system information physical downlink control channel monitoring timing and the remaining minimum system information offset D between the time slot carrying the first remaining minimum system information physical downlink control channel monitoring timing at the start of the remaining minimum system information physical downlink control channel monitoring timing sequence, and the remaining minimum system information interval T between two adjacent remaining minimum system information physical downlink control channel monitoring timings in the remaining minimum system information physical downlink control channel monitoring timing sequence; Decode the physical broadcast channel of the synchronization signal block to obtain the beam index, the remaining minimum system information offset, and the remaining minimum system information interval of the synchronization signal block; as well as Based on the product of the beam index and the remaining minimum system information interval, the obtained remaining minimum system information offset, and the parameter set index for transmitting the remaining minimum system information physical downlink control channel carried in the remaining minimum system information physical downlink control channel monitoring timing, the timing of the remaining minimum system information physical downlink control channel monitoring timing in the remaining minimum system information physical downlink control channel monitoring timing sequence relative to the timing reference is determined.
16. The user equipment as claimed in claim 15, characterized in that, The timing reference is a reference point for the starting position of a frame sequence transmitted within a period.
17. The user equipment as claimed in claim 15, characterized in that, The circuit is also configured to: The timing of the remaining minimum system information physical downlink control channel monitoring relative to the timing reference is determined according to the following formula: The timing of the remaining minimum system information physical downlink control channel monitoring timing in units of time slots. , wherein the remaining minimum system information offset and the remaining minimum system information interval are provided in number of milliseconds, μ is an index of a numerology, the index of the numerology indicating one of a predetermined set of different subcarrier spacings used for transmitting a remaining minimum system information physical downlink control channel carried in the remaining minimum system information physical downlink control channel monitoring occasion, such that 2 µ indicates the number of slots included per millisecond.
18. The user equipment as claimed in claim 15, characterized in that, The circuit is also configured to: The timing of the remaining minimum system information physical downlink control channel monitoring timing relative to the start time of the frame containing the remaining minimum system information physical downlink control channel monitoring timing is determined according to the following formula: The timing of the remaining minimum system information physical downlink control channel monitoring timing in units of intra-frame time slots , The residual minimum system information offset and the residual minimum system information interval are provided in milliseconds. This represents the number of time slots in the frame corresponding to the parameter set with index μ, where μ is the index of the parameter set, which indicates one of a predetermined set of different subcarrier intervals of the Remaining Minimum System Information Physical Downlink Control Channel (RPLC) carried during the Remaining Minimum System Information Physical Downlink Control Channel (RPLC) monitoring timing, such that 2 µ Indicates the number of time slots included per millisecond.
19. The user equipment as claimed in claim 18, characterized in that, The circuit is also configured to: The timing of the residual minimum system information physical downlink control channel monitoring timing relative to the start time of the frame containing the residual minimum system information physical downlink control channel monitoring timing is determined according to the following formula: The timing of the remaining minimum system information physical downlink control channel monitoring timing in units of intra-frame time slots Each time slot The residual minimum system information offset is provided in milliseconds, and the duration T' of the residual minimum system information interval is equal to a time slot corresponding to the parameter set with index μ.
20. The user equipment as claimed in claim 15, characterized in that, Each of the remaining minimum system cyber-physical downlink control channel monitoring timing sequences includes the remaining minimum system cyber-physical downlink control channel.
21. A method for wireless communication, comprising: In a wireless communication system, the user equipment receives a synchronization signal block from the base station, in which... The synchronization signal block includes a physical broadcast channel, which carries a beam index (SBI). The physical broadcast channel provides configuration information for the remaining minimum system information and the physical downlink control channel monitoring timing sequence. Each remaining minimum system information physical downlink control channel monitoring timing has an index, which corresponds to the beam index of each synchronization block in the synchronization block burst set, and The configuration information indicating timing reference of the remaining minimum system information physical downlink control channel monitoring timing and the remaining minimum system information offset D between the time slot carrying the first remaining minimum system information physical downlink control channel monitoring timing at the start of the remaining minimum system information physical downlink control channel monitoring timing sequence, and the remaining minimum system information interval T between two consecutive even-indexed or odd-indexed remaining minimum system information physical downlink control channel monitoring timings in the remaining minimum system information physical downlink control channel monitoring timing sequence; Decode the physical broadcast channel of the synchronization signal block to obtain the beam index, the remaining minimum system information offset, and the remaining minimum system information interval of the synchronization signal block; as well as Based on the product of the beam index and the remaining minimum system information interval, the obtained remaining minimum system information offset, and the parameter set index for transmitting the remaining minimum system information physical downlink control channel carried in the remaining minimum system information physical downlink control channel monitoring timing, the timing of the remaining minimum system information physical downlink control channel monitoring timing in the remaining minimum system information physical downlink control channel monitoring timing sequence relative to the timing reference is determined.
22. The method for wireless communication as described in claim 21, characterized in that, The timing reference is a reference point for the starting position of a frame sequence transmitted within a period.
23. The method for wireless communication as described in claim 21, characterized in that, Also includes: The timing of the remaining minimum system information physical downlink control channel monitoring relative to the timing reference is determined according to the following formula: The timing of the remaining minimum system information physical downlink control channel monitoring timing in units of time slots. , wherein the remaining minimum system information offset and the remaining minimum system information interval are provided in number of milliseconds, μ is an index of a numerology, the index of the numerology indicating one of a predetermined set of different subcarrier spacings used for transmitting a remaining minimum system information physical downlink control channel carried in the remaining minimum system information physical downlink control channel monitoring occasion, such that 2 µ indicates the number of slots included per millisecond.
24. The method for wireless communication as described in claim 21, characterized in that, Also includes: The timing of the remaining minimum system information physical downlink control channel monitoring timing relative to the start time of the frame containing the remaining minimum system information physical downlink control channel monitoring timing is determined according to the following formula: The timing of the remaining minimum system information physical downlink control channel monitoring timing in units of intra-frame time slots , The residual minimum system information offset and the residual minimum system information interval are provided in milliseconds. This represents the number of time slots in the frame corresponding to the parameter set with index μ, where μ is the index of the parameter set, which indicates one of a predetermined set of different subcarrier intervals of the Remaining Minimum System Information Physical Downlink Control Channel (RPLC) carried during the Remaining Minimum System Information Physical Downlink Control Channel (RPLC) monitoring timing, such that 2 µ Indicates the number of time slots included per millisecond.
25. The method for wireless communication as described in claim 24, characterized in that, Also includes: The timing of the residual minimum system information physical downlink control channel monitoring timing relative to the start time of the frame containing the residual minimum system information physical downlink control channel monitoring timing is determined according to the following formula: The timing of the remaining minimum system information physical downlink control channel monitoring timing in units of intra-frame time slots Each time slot The residual minimum system information offset is provided in milliseconds, and the duration of the residual minimum system information interval is equal to a time slot corresponding to the parameter set with index μ.
26. A memory configured to store program instructions that, when executed by a user equipment, cause the user equipment to perform the steps of the method for receiving residual minimum system information according to any one of claims 1-9, 21-25.
Citation Information
Patent Citations
Remaining minimum system information reception in 5g wireless communication system
CN110692275A