CN117793923A - Method for processing multi-cell scheduling and user equipment - Google Patents
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Abstract
The invention provides a method for processing multi-cell scheduling and user equipment. In a method, downlink Control Information (DCI) from a first serving cell is received. And determining a first number of a plurality of scheduling cells according to the downlink control information. The downlink control information is configured to schedule at least one communication on the scheduling cell. Communication is performed for at least one of the first number of scheduling cells according to the downlink control information. The downlink control information includes at least one single downlink control information field, at least one individual downlink control information field, and at least one configurable downlink control information field.
Description
Technical Field
The present disclosure relates generally to a method of handling multi-cell scheduling and a User Equipment (UE).
Background
A User Equipment (UE) may be served by multiple cells. For example, fig. 1 is a schematic diagram illustrating an example of multi-cell communication. Referring to fig. 1, a transmission reception point (transmission reception point, TRP) #1 provides four cells cell#0 to cell#3, and trp#2 provides two cells cell#0 to cell#1. In addition, one or some of the cells cell#0 to cell#3 may support multi-panel operation, but other cells may support single-panel operation. However, the legacy DCI does not provide an appropriate field in control signaling to indicate multi-panel operation for multi-cell scheduling.
Disclosure of Invention
Accordingly, the present disclosure relates to a method of handling multi-cell scheduling and a UE.
In accordance with one or more exemplary embodiments of the present disclosure, a method of processing multi-cell scheduling is used by a UE. The method comprises the following steps: receiving downlink control information (downlink control information, DCI) from a first serving cell; determining a first number of a plurality of scheduling cells from the DCI, wherein the DCI is configured to schedule at least one communication on the scheduling cells; and performing at least one communication for at least one of the first number of scheduling cells according to the DCI. The DCI includes at least one single DCI field, at least one individual DCI field, and at least one configurable DCI field.
According to one or more exemplary embodiments of the present disclosure, a UE includes a transceiver, a memory, and a processor. The transceiver is used to transmit or receive signals. The memory is used for storing program codes. The processor is coupled to the transceiver and the memory. The processor is configured to execute the program to: receiving, by a transceiver, DCI from a first serving cell; determining a first number of a plurality of scheduling cells from the DCI, wherein the DCI is configured to schedule at least one communication on the scheduling cells; and performing at least one communication for at least one of the first number of scheduling cells according to the DCI. The DCI includes at least one single DCI field, at least one individual DCI field, and at least one configurable DCI field.
According to one or more exemplary embodiments of the present disclosure, a method of processing multi-cell scheduling is used by a network device. The method comprises the following steps: configuring a first number of a plurality of scheduling cells for DCI scheduling; and transmitting DCI to the UE via the first serving cell for performing the plurality of multi-cell communications on the scheduling cell. The DCI includes at least one single DCI field, at least one individual DCI field, and at least one configurable DCI field.
In order that the above may be better understood, several embodiments are described in detail below with reference to the accompanying drawings.
Drawings
The accompanying drawings are included to provide a further understanding of the disclosure, and are incorporated in and constitute a part of this specification. The drawings illustrate exemplary embodiments of the present disclosure and together with the description serve to explain the principles of the disclosure.
Fig. 1 is a schematic diagram showing an example of multi-cell communication;
fig. 2 is a schematic diagram showing DCI size alignment;
FIG. 3 is a schematic diagram showing DCI size alignment for each step;
fig. 4 is a schematic diagram illustrating a wireless communication network architecture according to an exemplary embodiment of the present disclosure;
fig. 5 is a schematic diagram showing DCI size alignment for each step according to an exemplary embodiment of the present disclosure;
Fig. 6 is a schematic diagram showing DCI size alignment for each step according to an exemplary embodiment of the present disclosure;
fig. 7 is a flowchart illustrating a method of processing multi-cell scheduling according to an exemplary embodiment of the present disclosure;
fig. 8 is a schematic diagram illustrating DCI fields of four cells according to an exemplary embodiment of the present disclosure;
fig. 9 is a schematic diagram showing DCI fields of three cells according to an exemplary embodiment of the present disclosure;
fig. 10 is a schematic diagram showing DCI fields of three cells according to an exemplary embodiment of the present disclosure;
fig. 11 is a schematic diagram illustrating DCI fields with joint indications according to an exemplary embodiment of the present disclosure;
fig. 12 is a schematic diagram illustrating mismatched DCI lengths according to an exemplary embodiment of the present disclosure;
FIG. 13A is a schematic diagram illustrating single panel operation according to an exemplary embodiment of the present disclosure;
fig. 13B is a schematic diagram illustrating a multi-panel operation according to an exemplary embodiment of the present disclosure;
FIG. 14 is a schematic diagram illustrating relationship determination according to an exemplary embodiment of the present disclosure;
fig. 15 is a diagram illustrating a relationship determination of one set of sounding reference signal (sound reference signal, SRS) resources configured for a serving cell according to an exemplary embodiment of the present disclosure;
Fig. 16 is a diagram illustrating relationship determination of one SRS resource set configured for a serving cell according to an exemplary embodiment of the present disclosure;
FIG. 17 is a schematic diagram illustrating relationship determination for multi-panel operation according to an exemplary embodiment of the present disclosure;
FIG. 18 is a schematic diagram illustrating panel selection according to an exemplary embodiment of the present disclosure;
FIG. 19 is a schematic diagram illustrating relationship determination for multi-panel operation according to an exemplary embodiment of the present disclosure;
FIG. 20 is a schematic diagram illustrating dynamic single/multi-panel operation according to an exemplary embodiment of the present disclosure;
fig. 21 is a schematic diagram illustrating association of demodulation reference signal (demodulation reference signal, DMRS) ports with code division multiplexing (code division multiplexing, CDM) groups according to an exemplary embodiment of the present disclosure;
fig. 22 is a schematic diagram illustrating association of DMRS ports with CDM groups according to an exemplary embodiment of the present disclosure;
fig. 23 is a flowchart illustrating a method of processing multi-cell scheduling according to an exemplary embodiment of the present disclosure;
fig. 24 is a block diagram illustrating a communication device according to an exemplary embodiment of the present disclosure.
Description of the reference numerals
1: a wireless communication network architecture;
2400: a communication device;
2410: a processor;
2420: a memory;
2430: a transceiver;
cell#0 to cell#6: a cell;
NN: a network node;
NW: a base station;
s710, S720, S730, S2310, S2320: a step of;
trp#1, trp#2: transmitting the receiving point.
Detailed Description
Reference will now be made in detail to the presently preferred embodiments of the present disclosure, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers are used in the drawings and the description to refer to the same or like parts.
Abbreviations in this disclosure are defined as follows, and unless otherwise specified, acronyms have the following meanings:
abbreviation full scale
BWP Bandwidth part (Bandwidth part)
CB Codebook (Codebook)
CC component carrier (Component carrier)
CDM code division multiplexing (Code division multiplexing)
CG configuration authorization (configuration grant)
CI cancel indicator/indication (Cancellation indicator/indication)
CIF carrier indicator field (Carrier indicator field)
CORESET control resource set (Control resource set)
CRC cyclic redundancy check (Cyclic redundancy check)
CSI channel state information (Channel status information)
CW Codeword (Codeword)
C-RNTI cell RNTI (Cell RNTI)
DAI downlink assignment index (Downlink Assignment Index)
DCI downlink control information (Downlink control information)
DL Downlink (Down link)
DMRS demodulation reference signal (Demodulation reference signal)
FDRA frequency domain resource allocation (Frequency domain resource assignment)
gNB next generation node B (Next generation node B)
HARQ-ACK hybrid automatic repeat request acknowledgement (Hybrid Automatic Repeat requestacknowledgement)
ID (Identity)
INT interrupt (interrupt)
MAC media access control (Media Access Control)
MCS modulation coding scheme (Modulation coding scheme)
NACK negative acknowledgement (Negative acknowledgement)
NDI new data indicator (New Data Indicator)
NR New Wireless (New radio)
OFDM orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing)
Pcell Primary Cell (Primary Cell)
PDCCH physical downlink control channel (Physical downlink control channel)
PDSCH physical downlink shared channel (Physical downlink shared channel)
PHY Physical (Physical)
PL-RS pathloss reference signal (pathloss reference signal)
PRB physical resource block (physical resource block)
PTRS Phase tracking reference signal (Phase-tracking reference signal)
PUCCH physical uplink control channel (Physical uplink control channel)
PUSCH physical uplink shared channel (Physical uplink shared channel)
QAM quadrature amplitude modulation (Quadrature Amplitude Modulation)
QCL quasi co-location (quasi-co-location)
RA resource allocation (Resource allocation)
RE Resource element (Resource element)
RNTI radio network temporary identifier (Radio Network Temporary Identity)
RRC radio resource control (Radio Resource Control)
RS Reference signal (Reference signal)
RV redundancy version (Redundancy version)
SCell Secondary cell (Secondary cell)
SCS subcarrier spacing (Sub-carrier spacing)
SFI slot format indicator (Slot format indicator)
SLIV Start and Length indicator value (Start and length indicator value)
SP Semi-static (Semi permanent)
SPS semi-persistent scheduling (Semi Persistent Scheduling)
SRI SRS resource indicator (SRS resource indicator)
SRS sounding reference signal (Sounding reference signal)
SS Search space (Search space)
SSB synchronous signal block (Synchronization Signal Block)
TB Transport block (Transport block)
TCI transmission configuration indication (Transmission configuration indication)
TDRA time domain resource allocation (Time domain resource assignment)
TPC transmission power control (Transmission power control)
TPMI precoding information and layer number (Precoding information and number of layers)
TRP transmission receiving point (Transmission reception point)
UCI uplink control information (Uplink control information)
UE User equipment (User equipment)
UL Uplink (Uplink)
UL-SCH uplink shared channel (Uplink shared channel)
Ultra LLC Ultra reliable low delay communication (Ultra-reliable low latency communications)
USS UE specific search space (UE-specific search space)
Some embodiments are first introduced.
DCI in this disclosure may also be referred to as a DCI format.
The DCI or DCI format in this disclosure may also be referred to as PDCCH.
DCI for multi-cell scheduling may be monitored in the USS set.
The DCI for multi-cell scheduling may be a DCI format with a CRC scrambled by a C-RNTI.
PUSCH may be transmitted in UL BWP of the serving cell.
(e.g., UL and/or DL) BWP is a set of contiguous PRBs on a given carrier. The UE may be configured with a maximum of 4 BWP for Downlink (Downlink) and Uplink (Uplink), but at a given point in time, only one BWP is active for Downlink and one BWP is active for Uplink. Each BWP defined for parameter configuration (numerology) may have a different subcarrier spacing, symbol duration, and/or Cyclic Prefix (CP) length.
The serving cell in the present disclosure may also be referred to as a cell, carrier, or component carrier.
The maximum number of cells co-scheduled by DCI is 4.
In the present disclosure, multiple PUSCHs (e.g., one PUSCH per cell) are scheduled in multiple serving cells by DCI.
For a UE, the maximum number of cells co-scheduled by the DCI format may be less than or equal to the maximum number of co-scheduled cells supported by the network or the gNB, depending on its capabilities.
For multiple cell scheduling, scheduling cells (scheduling cells) and scheduling cells (scheduling cells) may be configured in a cell group. For example, a cell group may be a PUCCH group.
For multiple cell scheduling, co-scheduling cells may be configured with the same SCS configuration.
For multi-cell scheduling, the scheduling cell (scheduling cell) and co-scheduling cell (co-scheduling cell) may be configured with the same SCS configuration.
In the present disclosure, a type 1 field may be considered a common field or a 1 st field, a type 2 field may be considered an individual field or a 2 nd field, and a type 3 field may be considered a configurable field or a 3 rd field. But is not limited thereto.
Combinations of the embodiments disclosed in this document should not be excluded.
In the present disclosure, it is not excluded that at least one PUSCH on a serving cell is scheduled by DCI, and that DCI may schedule PUSCH on one cell (i.e., a single cell schedules DCI).
In this disclosure, one or more problems are studied to support multi-cell scheduling from a set of candidate serving cells:
a new DCI format having a DCI field of a new type (type 3). The length, the order of the DCI fields, the structure of the type 3 fields, and some parameters need to be defined.
There is a need to support multi-panel operation with multi-cell scheduling.
In one embodiment, a new DCI format is introduced. For multi-cell scheduling:
the DCI format 0_X is used to schedule multiple PUSCHs on multiple cells, one PUSCH per cell;
the DCI format 1_X is used to schedule multiple PDSCH on multiple cells, one PDSCH per cell.
In one embodiment, different TBs are scheduled on different cells by DCI format 0_X, respectively. In one embodiment, different TBs are scheduled on different cells by DCI format 1_X, respectively.
In one embodiment, DCI for multi-cell scheduling is monitored only in USS sets.
In one embodiment, all cells co-scheduled by DCI formats 0_X/1_X and scheduling cells (scheduling cells) are contained in the same PUCCH group.
In one embodiment, a DCI format 0_X/1_X on a scheduling cell (scheduling cell) may be used to schedule PUSCH/PDSCH on multiple cells including the scheduling cell.
In one embodiment, a DCI format 0_X/1_X on a scheduling cell (scheduling cell) may be used to schedule PUSCH/PDSCH on multiple cells not including the scheduling cell.
In one embodiment, for a UE, the maximum number of cells scheduled by DCI format 0_X may be the same as or different from the maximum number of cells scheduled by DCI format 1_X.
In one embodiment, for DCI formats supporting multi-cell scheduling, the UE may determine the number of co-scheduled serving cells (e.g., X0 for DCI format 0_X and X1 for DCI format 1_X) according to a gNB configuration (e.g., SS configuration) or as indicated by DCI format 0_X/1_X.
In one embodiment, for DCI formats (e.g., DCI format 0_X and/or DCI format 1_X), a UE may determine a set of candidate cells that may be co-scheduled by the DCI format, where:
the candidate cell set may be included in the same PUCCH group;
the candidate set of cells may be configured by higher layer signals (e.g., SS configuration).
In one embodiment, to discuss the field design of DCI formats 0_X/1_X that schedule more than one cell, the type of DCI field is reformulated as follows:
type 1 field:
type 1A field: a single field indicating common information for all co-scheduled cells;
Type 1B field: a single field indicating individual information for each of the co-scheduled cells via a joint indication;
type 1C field: a single field indicating information for only one of the co-scheduled cells.
Type 2 field: individual fields for each of the co-scheduled cells.
Type 3 field: either common or individual for each of the co-scheduled cells, or individual for each subgroup, depending on the explicit configuration.
It should be noted that one subgroup contains a subset of co-scheduled cells, wherein a single field is typically applied to co-scheduled cells belonging to the same subgroup.
In one embodiment, for multi-cell scheduling, co-scheduling cells are indicated by DCI formats 0_X/1_X. At least the following options are considered:
option 1: the indicator in the DCI points to a row of a table defining a combination of scheduling cells:
the table is configured by RRC signaling;
the individual tables may be configured for multi-cell PDSCH scheduling and multi-cell PUSCH scheduling;
option 2: the indicator in the DCI is a bitmap corresponding to the set of configuration cells that can be scheduled by DCI 0_X/1_X:
individual configured cell sets for multi-cell PDSCH scheduling and multi-cell PUSCH scheduling;
option 3: existing fields (e.g., CIF, FDRA) are used to indicate whether to schedule one or more cells.
In one embodiment, DCI size alignment is performed across all search spaces configured at BWP and across all slots, then for a given DCI format at a given search space, the DCI size is the same across slots. In one embodiment, there is no slot-by-slot dependency (except for BWP handover or when some RRC configurations become inactive based on the specification). In one embodiment, the UE may expect to monitor up to 4 size PDCCH candidates of the DCI format, which include up to 3 sizes of the DCI format with a CRC scrambled by the C-RNTI per serving cell. The UE counts the number of DCI format sizes per serving cell based on the number of configured PDCCH candidates in the respective search space set for the corresponding active DL BWP.
Fig. 2 is a schematic diagram showing DCI size alignment. Referring to fig. 2, in step 0, fallback DCIs (e.g., format 0_0 and format 1_0) monitored in the CSS are determined, and size alignment is performed among the fallback DCIs in the CSS. In step 1, the fallback DCI monitored in USS is determined, and size alignment is performed among the fallback DCIs in USS. In step 2, the non-fallback DCI monitored in USS (i.e. format 0_1 and format 1_1) is determined and the non-fallback DCI should have a different size than the fallback DCI in USS (by adding padding as needed). In step 2A, the non-fallback DCI monitored in USS (i.e., format 0_2 and format 1_2) is determined, and the non-fallback DCI should have a different size than the fallback DCI in USS (e.g., by adding padding bits as needed).
In step 3, it is determined whether the following two conditions are satisfied:
for a cell, a total number of different DCI sizes configured to monitor is not greater than 4;
for a cell, a total number of different DCI sizes with C-RNTIs configured to monitor is not greater than 3. If both conditions are met, the size alignment procedure is complete.
If the condition is not met, in step 4A, the padding bits introduced in step 2 and step 2A are removed, the fallback DCI monitored in USS is determined, and size alignment is performed among the fallback DCIs in USS.
In step 4B, it is determined whether the following condition is satisfied:
after applying the above steps, for the cell, the total number of different DCI sizes configured to monitor is greater than 4; or (b)
After applying the above steps, the total number of different DCI sizes with C-RNTIs configured to be monitored is greater than 3 for the cell.
If the number of information bits in DCI format 0_2 before padding is less than the payload size of DCI format 1_2 for scheduling the same serving cell, a number of zero padding bits are generated for DCI format 0_2 until the payload size is equal to the payload size of DCI format 1_2. If the number of information bits in DCI format 1_2 before padding is less than the payload size of DCI format 0_2 for scheduling the same serving cell, zeros should be appended to DCI format 1_2 until the payload size is equal to the payload size of DCI format 0_2.
In step 4C, it is determined whether the following condition is satisfied:
after applying the above steps, for the cell, the total number of different DCI sizes configured to monitor is greater than 4; or (b)
After applying the above steps, the total number of different DCI sizes with C-RNTIs configured to be monitored is greater than 3 for the cell.
If the number of information bits in DCI format 0_1 before padding is less than the payload size of DCI format 1_1 for scheduling the same serving cell, a number of zero padding bits are generated for DCI format 0_1 until the payload size is equal to the payload size of DCI format 1_1. If the number of information bits in DCI format 1_1 before padding is less than the payload size of DCI format 0_1 for scheduling the same serving cell, zeros should be appended to DCI format 1_1 until the payload size is equal to the payload size of DCI format 0_1.
Fig. 3 is a schematic diagram showing DCI size alignment for each step. Referring to fig. 3, the lengths of DCI format 0_0 and DCI format 1_0 in the css are determined to be size a, the lengths of DCI format 0_0 and DCI format 1_0 in the USS are determined to be size B, the length of DCI format 0_1 is determined to be size C, the length of DCI format 1_1 is determined to be size D, the length of DCI format 0_2 is determined to be size E, and the length of DCI format 1_2 is determined to be size F. In step 4A, the lengths of DCI format 0_0 and DCI format 1_0 in USS are aligned to size a. In step 4B, the lengths of DCI format 0_2 and DCI format 1_1 are aligned to size G. In step S4C, the lengths of DCI format 0_1 and DCI format 1_1 are aligned to size H. Finally, there are only 3 different DCI sizes, which are size a, size H, and size G.
Fig. 4 is a schematic diagram illustrating a wireless communication network architecture 1 according to an exemplary embodiment of the present disclosure. Referring to fig. 4, a wireless communication network architecture (e.g., a long term evolution (Long Term Evolution, LTE) system, an LTE-Advanced (LTE-a) system, an LTE-Advanced Pro system, or a 5G NR radio access network (Radio Access Network, RAN)) typically includes one or more Base Stations (BS) NWs, one or more UEs, and one or more optional network elements that provide connectivity to the network. The UE communicates with a Network (e.g., core Network (CN), evolved packet Core (Evolved Packet Core, EPC) Network, evolved universal terrestrial radio access Network (Evolved Universal Terrestrial Radio Access Network, E-UTRAN), 5G Core (5G Core,5 gc), or the internet) through a RAN established by one or more base stations.
It should be noted that in this disclosure, a UE may include, but is not limited to, a mobile station, a mobile terminal or device, or a user communication wireless terminal. For example, the UE may be a portable wireless device including, but not limited to, a mobile phone, tablet computer, wearable device, sensor, vehicle, or personal digital assistant (Personal Digital Assistant, PDA) with wireless communication capability. The UE is configured to receive signals over an air interface and transmit the signals to one or more cells in a radio access network.
The base station NW may be configured to provide communication services according to at least one of the following radio access technologies (Radio Access Technology, RAT): global interoperability for microwave access (Worldwide Interoperability for Microwave Access, wiMAX), global system for mobile communications (Global System for Mobile communications, GSM, often referred to as 2G), GSM enhanced data rates for GSM evolution (Enhanced Data rates for GSM Evolution, EDGE) radio access network (GSM Enhanced Data rates for GSM Evolution Radio Access Network, GERAN), general packet radio service (General Packet Radio Service, GPR), universal mobile telecommunications system based on wideband-code division multiple access (W-CDMA) based on wideband-code division multiple access (Universal Mobile Telecommunication System, UMTS, often referred to as 3G), high-speed packet access (high-speed packet access, HSPA), LTE-a, evolved LTE (LTE, e.g., LTE connected to 5 GC), NR (often referred to as 5G), and/or LTE-a Pro. However, the scope of the present disclosure should not be limited to the above protocols.
The base station NW may include, but is not limited to, a Node B (NB) in UMTS, AN evolved node B (eNB) in LTE or LTE-a, a radio network controller (radio network controller, RNC) in UMTS, a base station controller (base station controller, BSC) in a GSM/GSM enhanced data rates for GSM evolution (EDGE) radio access network (GERAN), a next generation eNB (next-generation eNB) in a BS in conjunction with 5GC universal terrestrial radio access (Evolved Universal Terrestrial Radio Access, E-UTRA), a next generation node B (next-generation Node B, gNB) in a 5G access network (5G Access Network,5G-AN), and any other device capable of controlling wireless communications and managing radio resources within a cell. The BS NW may connect to serve one or more UEs through a wireless interface to the network.
A Base Station (BS) NW (or network device) is operable to provide wireless coverage to a particular geographical area using a plurality of cells included in the RAN. The BS NW may support the operation of the cell. Each cell is operable to provide service to at least one UE within its wireless coverage. In particular, each cell (often referred to as a serving cell) may provide service within its wireless coverage to serve one or more UEs (e.g., each cell schedules Downlink (DL) and optionally Uplink (UL) resources within its wireless coverage to at least one UE for DL and optionally UL packet transmissions). The BS NW may communicate with one or more UEs in a wireless communication system via a plurality of cells.
The base station NW may comprise a network node NN and one or more TRPs, e.g. TRP #1 and TRP #2.
The network node NN may be, but is not limited to, a Node B (NB) in LTE, an evolved node B (eNB) in LTE-A, a Radio Network Controller (RNC) in UMTS, a Base Station Controller (BSC) in GSM/GERAN, a new evolved node B (NR eNB) in NR, a next generation node B (gNB) in NR, and any other device capable of controlling wireless communications and managing radio resources within one or more cells.
TRP (e.g., TRP #1 or TRP # 2), which may also be considered a remote radio head (remote radio head, RRH), may be a transceiver under the protocol of a 5G NR wireless communication system and/or the protocol of a 4G wireless communication system. The TRP may be communicatively connected to the network node NN. The network node NN may be connected through one or more TRP in a wireless communication system to serve one or more UEs. For example, trp#1 and trp#2 serve UEs, but are not limited thereto.
As discussed above, the frame structure of NR supports flexible configurations that accommodate various next generation (e.g., 5G) communication requirements, such as enhanced mobile broadband (Enhanced Mobile Broadband, eMBB), large-scale machine type communication (Massive Machine Type Communication, mctc), ultra-Reliable and Low-latency communication (URLLC), while achieving high reliability, high data rates, and Low latency requirements. Orthogonal frequency division multiplexing (Orthogonal Frequency-Division Multiplexing, OFDM) techniques agreed in 3GPP can serve as a baseline for NR waveforms. An extensible OFDM parameter configuration such as adaptive subcarrier spacing, channel bandwidth, and Cyclic Prefix (CP) may also be used. In addition, two coding schemes are considered for NR: (1) Low-Density Parity-Check (LDPC) codes and (2) polarization codes. The coding scheme adaptation may be configured based on channel conditions and/or service applications.
It should be understood that the terms "system" and "network" as used in this disclosure are often used interchangeably. The term "and/or" in this disclosure is merely descriptive of the association of associated objects, which means that there may be three relationships, e.g., a and/or B, which may mean three situations: a is present individually, A and B are present simultaneously, or B is present individually. Further, the character "/" in this disclosure generally indicates that the associated object is in an "or" relationship.
To facilitate understanding of technical solutions of embodiments of the present disclosure, technical concepts related to the embodiments of the present disclosure are described below.
In one embodiment, for multi-cell scheduling, the UE may determine a length (e.g., L) of a DCI format (e.g., DCI format 0_X/1_X) according to one or more higher layer configurations. In one embodiment, a higher layer configuration (e.g., SS configuration) may indicate a DCI length. The length of DCI format 0_X/1_X may not be equal to the length of other DCI formats with CRCs scrambled by the C-RNTI. The length of DCI format 0_X/1_X may be equal to the length of other DCI formats having CRCs scrambled by, for example: SFI-RNTI, INT-RNTI, CI-RNTI, TPC-PUCCH-RNTI, TPC-PUSCH-RNTI and/or TPC-SRS-RNTI. DCI format 0_X and DCI format 1_X may be configured with the same length or different lengths.
In one embodiment, the length of a DCI format (e.g., DCI format 0_X/DCI format 1_X) may not be equal to other DCI formats (e.g., DCI format 0_0/0_1, DCI format 0_1/1_1, and/or DCI format 0_2/1_2). For example, after DCI size alignment, the length of DCI format 0_1/1_1 may be equal to the length of DCI format 0_2/1_2.
In one embodiment, for example, after DCI size alignment, the length of a DCI format (e.g., DCI format 0_X/DCI format 1_X) may be equal to other DCI formats (e.g., DCI format 0_0/0_1, DCI format 0_1/1_1, and/or DCI format 0_2/1_2).
For example, fig. 5 is a schematic diagram showing DCI size alignment for each step according to an exemplary embodiment of the present disclosure. Referring to fig. 5, the length of the DCI format 0_X is determined to be a size E ', and the length of the DCI format 1_X is determined to be a size F ' (which may be equal to E '). In step 4C', the lengths of DCI format 0_X and DCI format 1_X may be aligned to size I. However, after step 4C/4C', there are four different DCI sizes. Thus, in step 4D, the lengths of DCI format 0_1, DCI format 1_1, DCI format 0_2, and DCI format 1_2 are aligned to a size K that is equal to the largest one of size G and size H.
Fig. 6 is a schematic diagram illustrating DCI size alignment for each step according to an exemplary embodiment of the present disclosure. Referring to fig. 6, alternatively, in step 4D, the lengths of DCI formats 0_X and 1_X are aligned to a size K equal to the largest one of sizes G and H. After step 4D, there are three different DCI sizes and the condition of step 3 is met.
Fig. 7 is a flowchart illustrating a method of processing multi-cell scheduling according to an exemplary embodiment of the present disclosure. Referring to fig. 7, the method is applicable to a UE. The UE receives DCI from a serving cell (step S710). In one embodiment, the first serving cell is provided by trp#1 or trp#2 as shown in fig. 4.
The UE determines a first number of a plurality of scheduling cells according to the DCI (step S720). Specifically, the DCI is configured to schedule a UE with one or more communications, e.g., receive PDSCH or transmit PUSCH on a scheduling cell. The first number is a positive integer. In one embodiment, the UE may determine the first number of scheduling cells from the third number of scheduling cells. The third number is a positive integer. The first number is less than or equal to the third number. For example, the first number is 3 and the third number is 4. The maximum number of serving cells of the third number is 4 and/or the minimum number of serving cells of the first number is 1.
The UE performs one or more communications on one or more of the first number of scheduling cells according to the DCI (step S730). Specifically, the DCI includes one or more single DCI fields, one or more individual DCI fields, and one or more configurable DCI fields.
For example, fig. 8 is a diagram illustrating DCI fields for scheduling communications on four cells according to an exemplary embodiment of the present disclosure. Referring to fig. 8, in a DCI bitstream, there may be a plurality of common fields (i.e., a single DCI field), a plurality of individual fields (i.e., individual DCI fields), and a plurality of type 3 fields (i.e., configurable DCI fields). Each type 3 field may be common, individual, or per-subgroup information.
In one embodiment, the following types of DCI fields may be used for DCI formats for multi-cell scheduling:
type 1 field:
a single DCI field indicating common information for all co-scheduled cells,
a single DCI field indicating individual information for each of the co-scheduled cells via joint indication, and/or
A single DCI field indicating information for only one of the co-scheduled cells;
type 2 field: an individual field for each of the co-scheduled cells;
type 3 field: common or individual for each of the co-scheduled cells, or individual for each subgroup, depending on the higher layer configuration.
In one embodiment, one subset may contain a subset of co-scheduled cells, where a single DCI field is typically applied to co-scheduled cells belonging to the same subset. A single DCI field may:
indicating common information (e.g., PTRS-DMRS association), or
Individual information for each of the co-scheduled cells in the same subgroup is indicated via a joint indication (e.g., TCI, SRI).
In one embodiment, the following information is transmitted by means of a DCI format:
part 1: an identifier of a DCI format (e.g., DCI format 0_X or DCI format 1_X), e.g., one bit;
Part 2: the co-scheduling cell indicator is used to indicate,
for example, the number of co-scheduled cells = X;
part 3: at least one DCI field (e.g., a type 1 field) indicating common information of all co-scheduling cells;
part 4: for each of the (e.g., type 3) DCI fields, determining a number of bits from the higher layer signals (e.g., common, per subgroup, or individual);
part 5: a first set of DCI fields specific to a first co-scheduling cell,
for example, the lowest cell ID (e.g., #1 in fig. 8) among the co-scheduled cells;
part 6: a second set of DCI fields specific to a second co-scheduling cell,
for example, the 2 nd lowest cell ID (e.g., #2 in fig. 8) among the co-scheduled cells;
part x+4: an X group DCI field specific to an X co-scheduling cell,
for example, the highest cell ID among co-scheduled cells (e.g., #4 in fig. 8);
part x+5: fill bits (if needed). Part 5 to part x+4 are type 2 fields.
In one embodiment, the following information is transmitted by means of a DCI format:
part 1: an identifier of a DCI format (e.g., DCI format 0_x or DCI format 1_x), e.g., one bit;
part 2: the co-scheduling cell indicator is used to indicate,
for example, the number of co-scheduled cells = X;
Part 3: for each of the remaining DCI fields in the DCI format, determining a number of bits according to its type (e.g., common, per subgroup, or individual);
part 4: fill bits (if needed).
In one embodiment, a single DCI field corresponds to one, some, or all of a first number of scheduling cells on which a UE performs one or more communications (e.g., receives PDSCH or transmits PUSCH). That is, the UE may receive the PDSCH or transmit the PUSH on the scheduling cell indicated in the single DCI field when or only when the single DCI field indicates information from the scheduling cells of the first number of scheduling cells.
Taking fig. 8 as an example, the common field indicates information of cell#1 to cell#4. Cell#1 to cell#4 are co-scheduled cells indicated by DCI. Accordingly, a UE receiving DCI may receive PDSCH or transmit PUSH on cell#1 to cell#4.
Fig. 9 is a schematic diagram illustrating DCI fields of three cells according to an exemplary embodiment of the present disclosure. In fig. 9, the common field indicates information of cell#1 to cell#3. Cell#1 to cell#3 are co-scheduled cells indicated by DCI. Accordingly, a UE receiving DCI may receive PDSCH or transmit PUSH on cell#1 to cell#3.
Fig. 10 is a schematic diagram illustrating DCI fields of three cells according to an exemplary embodiment of the present disclosure. Referring to fig. 10, the common field indicates information of cell#a to cell#c. Cell#a to cell#c are co-scheduled cells indicated by DCI. Thus, a UE receiving DCI may receive PDSCH or transmit PUSH on cell#a to cell#c.
In one embodiment, a single DCI field may contain at least one of:
an identifier in, for example, one bit of a DCI format (e.g., DCI format 0_X or DCI format 1_X);
a co-scheduling cell indicator (e.g., number of co-scheduling cells = X);
BWP indicators of a plurality of scheduling cells supporting dynamic bandwidth part (BWP) handover;
downlink assignment index;
a transmit power control (transmission power control, TPC) command for a physical uplink control channel (physical uplink control channel, PUCCH) (if the DCI format is DCI format 1_X);
PUCCH resource indicator (if DCI format is DCI format 1_X);
a physical downlink shared channel to hybrid automatic repeat request (PDSCH to HARQ) timing indicator (if the DCI format is DCI format 1_X);
one-shot HARQ-ACK request (if DCI format is DCI format 1_X);
a β offset indicator (if the DCI format is DCI format 0_X);
channel state information (channel state information, CSI) request (if the DCI format is DCI format 0_X); and
time domain resource allocation (time domain resource allocation, TDRA).
In one embodiment, the individual DCI field corresponds to a second number of information blocks, and each information block indicates control information of one of the scheduling cells. Taking fig. 8 as an example, individual fields indicate control information of cell#1 to cell#4 of each information block, respectively. That is, the four information blocks correspond to cell#1 to cell#4, respectively. Taking fig. 9 as an example, individual fields indicate control information of cell#1 to cell#3 of each information block, respectively. Taking fig. 10 as an example, individual fields indicate control information of cell#a to cell#c of each information block, respectively.
In one embodiment, the second number is equal to the first number. For example, if there are four scheduling cells, the DCI includes an individual DCI field with four information blocks.
In one embodiment, the second number of information blocks is placed according to an ascending order of serving cell indexes, and the first information block corresponds to a minimum serving cell index. Taking fig. 8 as an example, the ascending order is #1, #2, #3, and #4. The first information block corresponds to Cell #1. Taking fig. 10 as an example, the ascending order is #a, #b, and #c. The first information block corresponds to cell#a. However, in other embodiments, the order of the information blocks may be placed according to the descending order of the serving cell index or another order.
In one embodiment, the control information corresponds to one of:
new data indicator (new data indicator, NDI);
redundancy versions (redundancy version, RV);
modulation coding scheme (modulation coding scheme, MCS); and
frequency domain resource assignment (frequency domain resource assignment, FDRA).
In one embodiment, the UE may determine whether the type 3 field (e.g., a configurable field) is a common field or an individual field for each of the first number of scheduling cells (e.g., co-scheduling cells) or an individual field for each subset according to a higher layer configuration.
In one embodiment, the UE may determine that one of the one or more configurable DCI fields corresponds to the first number of scheduling cells if the configurable DCI field is of the first type, and the UE may determine that one of the one or more configurable DCI fields contains a plurality of information blocks if the configurable DCI field is of the second type, wherein each information block corresponds to a subset or one of the first number of scheduling cells. For example, the first type is the aforementioned type 1 or common type, and the second type is the aforementioned type 2 or individual type. Taking fig. 8 as an example, the (N-1) -th type 3 field is a common DCI field, and the common field corresponds to all of cell#1 to cell#4. The N-th type 3 field is an individual field, where each information block of the individual field corresponds to a subgroup. One subset may be any combination of Cell #1 to Cell #4 based on a higher layer configuration. Taking fig. 10 as an example, the first type 3 field is an individual field, where each information block of the individual field corresponds to one of Cell #a to Cell #c.
In one embodiment, for the DCI (type 3) field, the UE may receive a higher layer (e.g., SS configuration) configuration to determine whether the DCI field is a common field of a co-scheduling cell (case 1), an individual field (case 2), or a common field of a subset (case 3). For example, the configuration may include at least one of:
An identification of a Type3field, such as Type3 field;
a set of serving cells corresponding to Type3field, e.g., type3CellGroup;
field type (e.g., field type) to indicate the DCI field as one of the following:
individual fields/information for all cells,
indicating common fields/information, or
Indicating individual fields/information for each of the co-scheduled cells in the same subgroup via a joint indication;
determining a reference cell (e.g., reference cell) of information from the DCI field if the field type indicates a common field;
a list of DCI fields, e.g., rate-match indicator, ZP CSI-RS trigger, TCI, etc.
In one embodiment, the configurable DCI field includes at least one of:
a rate matching indicator;
zero Power (ZP) channel state information reference signal (channel state information-reference signal, CSI-RS) triggers;
precoding information and the number of layers;
phase tracking reference signal demodulation reference signal (phase-tracking reference signal-demodulation reference signal, PTRS-DMRS) correlation;
an antenna port;
a transmission configuration indicator (transmission configuration indicator, TCI);
A sounding reference signal (sounding reference signal, SRS) request;
initializing a DMRS sequence;
SRS resource indicator (SRS resource indicator, SRI); and
the physical reference block (physical reference block, PRB) bundling size indicator.
In one embodiment, for a set of DCI fields, each set of DCI fields indicates common information of a subset of a first number of scheduling cells (e.g., co-scheduling cells). For example, the set of SRI fields includes 2 SRIs, wherein a first SRI indicates common information for a first subset of co-scheduled cells and a second SRI indicates common information for a second subset of co-scheduled cells. For another example, the PRB bundling size indicator comprises 2 bits, wherein the first bit indicates a first PRB bundling size of a first subset of the co-scheduled cells and the second bit indicates a first PRB bundling size of a second subset of the co-scheduled cells.
In one embodiment, the subset of co-scheduled cells may comprise one serving cell, e.g., the first serving cell described above, according to a higher layer configuration. The set of DCI fields contains X individual information of X co-scheduled cells, respectively. Taking fig. 8 as an example, x=4, and the DCI field includes four individual information blocks of cell#1 to cell#4.
In one embodiment, the subset of co-scheduled cells may include all co-scheduled cells according to a higher layer configuration. Taking fig. 9 as an example, the subset of co-scheduled cells includes Cell #1 to Cell #3.
In one embodiment, when the UE is configured with DCI formats (e.g., from M candidate serving cells) for multi-cell PUSCH/PDSCH scheduling. For each of the scheduling serving cells, the UE may determine a TDRA according to a common TDRA field in the DCI format. For example, in table (1), each code point of the TDRA field may include at least one of K0 (or K2), SLIV, and a mapping type for each of the M candidate serving cells. M may be a predetermined value, a fixed value, or configured by the network device. The UE may determine TDRA of each of the scheduling serving cells according to its own TDRA configuration and parameter configurations (e.g., SCS) of PDCCH and PUSCH/PDSCH.
Watch (1)
Fig. 11 is a schematic diagram illustrating DCI fields with joint indication according to an exemplary embodiment of the present disclosure. Referring to fig. 11, dci indicates multi-cell PDSCH transmissions on cell B and cell C (selected from cell a to cell E), and the TDRA field indicates 3. Thus, the UE may determine a basis K0 for PDSCH transmission on cell B B,3 And SLIV B,3 And determines the basis K0 for PDSCH transmission on cell C C,3 And SLIV C,3 Is a TDRA of (c).
In one embodiment, the UE may apply one of the one or more configurable DCI fields to the scheduling cell in the absence of type information in one of the configurable DCI fields. The type information indicates one of the one or more configurable DCI fields as one of the one or more individual DCI fields and/or the type information indicates one of the one or more configurable DCI fields as one of the one or more individual DCI fields. Each configurable DCI field has corresponding type information. The type information is provided via higher layer signaling. In this case, for example, the gcb does not configure the type information of one of the configurable DCI fields via higher layer signaling, or the DCI does not carry the type information or has no corresponding field of the type information. In the case of another example, the DCI has a corresponding field of type information, but the field is configured to be zero, null or invalid. For example, for DCI format 0_X/1_X, if there is no information/configuration of the UE to determine whether the type 3 field is a common field, an individual field, or an individual field for each subset of co-scheduled cells, the UE may treat the type 3 field as a common field. The common field indicates information of one or more co-scheduling cells.
In one embodiment, the UE may determine that one of the one or more configurable DCI fields corresponds to the second number of information blocks in the event that one of the one or more configurable DCI fields lacks type information. The type information indicates one of the one or more configurable DCI fields as one of one or more individual DCI fields. Each configurable DCI field has corresponding type information. The type information is provided via higher layer signaling. In this case, for example, the gcb does not configure the type information of one of the configurable DCI fields via higher layer signaling, or the DCI does not carry the type information or has no corresponding field of the type information. In the case of another example, the DCI has a corresponding field of type information, but the field is configured to be zero, null or invalid. For example, for DCI format 0_X/1_X, if there is no information/configuration of the UE to determine whether the type 3 field is a common field, an individual field, or an individual field for each subset of co-scheduled cells, the UE may treat the type 3 field as an individual field. Each individual field indicates control information of one co-scheduling cell. In one embodiment, the second number is equal to the first number.
In one embodiment, the DCI is configured in a UE-specific search space (UE-specific search space, USS) and the length of the DCI is determined according to one or more higher layer configurations. For example, the higher layer configuration is a USS configuration.
In one embodiment, the DCI is scrambled by a cell-radio network temporary identifier (cell-radio network temporary identity, C-RNTI) and the length of the DCI is not equal to the length of a first DCI (i.e., another DCI) having a different format that is scrambled by the C-RNTI.
In one embodiment, the UE may determine that the length of the information block in the individual DCI field or in the configurable DCI field is the same. The length of each individual DCI field or each configurable DCI field is predetermined. Taking fig. 8 as an example, the lengths of four information blocks for the individual fields of cell#1 to cell#4 are the same, respectively. In one embodiment, the UE may determine the length of the information block in the individual DCI field or in the configurable DCI field from one or more higher layer signaling. One higher layer signaling is used for one of the information blocks corresponding to the scheduling cell. For example, the RRC configuration indicates the length of the information block in one field.
Fig. 12 is a schematic diagram illustrating mismatched DCI lengths according to an exemplary embodiment of the present disclosure. Referring to fig. 12, for example, for three cells, e.g., cell#1 to cell#3, the length of DCI is configured as L. However, due to BWP handover, there may be different numbers of co-scheduled cells, different combinations of co-scheduled serving cells, and/or different combinations of BWP sizes in co-scheduled cells. This length may not be applicable to, for example, four cells of Cell #3 through Cell #6, and the corresponding DCI field of Cell #6 may not be in a DCI format.
In one embodiment, the UE may apply a default value of control information of the DCI in case the DCI lacks the control information. In the case, for example, the DCI does not carry one piece of control information corresponding to the scheduling cell or does not have a corresponding field of control information. In the case, for example, DCI does not carry valid control information corresponding to a scheduling cell. Taking fig. 12 as an example, the default value of the control information is applied to cell#6.
In one embodiment, for DCI fields that are not in DCI format (e.g., due to restrictions in DCI length), default values/modes or default UE behaviors (e.g., according to UE capabilities) may be applied. For example, the UE may apply a default value/mode (e.g., 0 or gNB configuration value) of "RV" if the indicator is not in DCI format; applying a default value/mode of "antenna port" if the indicator is not in DCI format (e.g., "00" or gNB configuration values); applying a default value/mode (e.g., "0000") of "TPMI" in the case that TPMI is not in DCI format; a single antenna port transmission for PUSCH is assumed in case the corresponding "TPMI" is not in DCI format; applying a default spatial relationship of PUSCH in the case that the corresponding "SRI" is not in DCI format; and/or apply a default spatial relationship (e.g., TCI state) of PDSCH if the corresponding "TCI" is not in DCI format.
In one embodiment, the UE may not perform one of the one or more communications on one of the scheduling cells in the absence of control information for the one of the scheduling cells in the DCI. In the case, for example, the DCI does not carry one piece of control information corresponding to the scheduling cell or does not have a corresponding field of control information. Taking fig. 12 as an example, the UE may not perform PUSCH transmission or PDSCH reception on Cell #6, either when or only when the specific DCI field (e.g., TDRA, FDRA, MCS, etc.) corresponding to Cell #6 is not in a DCI format, and/or when or only when the UE is unable to follow the following instructions without having sufficient DCI.
In one embodiment, in the absence of a Transmission Configuration Indicator (TCI) state for DCI, the UE may apply a quasi co-sited (QCL) assumption for PDSCH in one or more communications based on the TCI state with the lowest Identification (ID) applicable to the Physical Downlink Shared Channel (PDSCH). The case is, for example, that the DCI does not carry the TCI state or does not have a corresponding field of the TCI state. In the case, for another example, the DCI has a corresponding field of TCI status, but the field is configured to be zero, null or invalid.
In the case where the UE receives DCI on one serving cell, and performs one of one or more PDSCH (e.g., PDSCH # 1) scheduled by the DCI on the same serving cell. The UE cannot obtain the TCI field corresponding to the serving cell of the DCI (e.g., due to restrictions on the DCI length). If the offset between the reception of DCI and PDSCH#1 is less than the threshold timeDurationForQCL, the UE may determine the PDSCH QCL hypothesis based on the CORESET with the CORESET ID (e.g., the lowest CORESET ID). Otherwise, the UE may determine PDSCH QCL hypotheses based on CORESET transmitting DCI for scheduling PDSCH.
In the case where the UE receives DCI on one serving cell, and performs one of PDSCH (e.g., PDSCH # 1) scheduled by the DCI on another serving cell. The UE may obtain its QCL assumption for the scheduling PDSCH (e.g., PDSCH # 1) from the activated TCI state with an ID (e.g., lowest ID) applicable to the PDSCH in the active BWP of the scheduling cell. The UE may be configured by higher layer signaling to implement a default beam for CCS (e.g., enabledefaultstreamforccs).
In one embodiment, in the case of configuring SRS resource sets, the UE may apply Sounding Reference Signal (SRS) resource indicator (SRI) to one or more Physical Uplink Shared Channel (PUSCH) repetitions or to one or more PUSCHs according to one SRS resource set. That is, one SRS resource set is configured for a serving cell, i.e., a single panel. The SRI is determined by one SRS resource indicator contained in a first DCI field, and the DCI contains the first DCI field. Fig. 13A is a schematic diagram illustrating single panel operation according to an exemplary embodiment of the present disclosure. Referring to fig. 13A, one SRS resource set includes 2 SRS resources corresponding to sri=0 and sri=1, respectively. Table (2) is a mapping table between the spatial relationship of PUSCH and SRI.
Watch (2)
| SRI | Spatial relationship of PUSCH |
| 0 | X |
| 1 | Y |
If sri=0 is configured in the first DCI field in the DCI, then the spatial relationship of PUSCH transmission corresponds to SRS resource (e.g., X in the figure) with sri=0. If sri=1 is configured in the first DCI field in the DCI, then the spatial relationship of PUSCH transmission corresponds to SRS resource (e.g., Y in the figure) with sri=1.
In one embodiment, in the absence of an SRS resource set indicator in the DCI, the UE may apply SRI to one or more PUSCH repetitions or to one or more PUSCHs according to one SRS resource set in the case of configuring the SRS resource set. In this case, for example, the DCI does not carry the SRS resource set indicator or does not have a corresponding field of the SRS resource set indicator. In the case, for another example, the DCI has a corresponding field of the SRS resource set indicator, but the field is configured to be zero, null or invalid.
In one embodiment, in the case of configuring the SRS resource set, the UE may repeat or apply SRI to one or more Physical Uplink Shared Channels (PUSCHs) according to a first one of the plurality of SRS resource sets. That is, a plurality of SRS resource sets, i.e., multi-panel, are configured.
For example, fig. 13B is a schematic diagram illustrating a multi-panel operation according to an exemplary embodiment of the present disclosure. Referring to fig. 13B, two SRS resource sets, which are a first SRS resource set and a second SRS resource set, are configured for a serving cell.
Table (3) spatial relationship of PUSCH repetition and SRS resource set indicator.
Watch (3)
| SRS resource set indicator | PUSCH repetition scheme |
| 00 | AAAA… |
| 01 | BBBB… |
| 10 | ABAB … or AABB |
| 11 | BABA … or BBAA |
For example, if SRS resource set indicator= "00" is indicated in the first DCI field in the DCI, the spatial relationship of PUSCH repetition corresponds to the first SRS resource set. The plurality of "a" in table (3) represent a plurality of consecutive PUSCHs (i.e., PUSCH repetitions) performed in association with the first SRS resource set. If SRS resource set indicator= "01" is indicated in the first DCI field in the DCI, then the spatial relationship of PUSCH repetition corresponds to the second SRS resource set. The plurality of "bs" in table (3) represent a plurality of consecutive PUSCHs (i.e., PUSCH repetitions) performed in association with the second SRS resource set. However, if the SRS resource set indicator= "11" is indicated in the first DCI field in the DCI, the spatial relationship of PUSCH repetition corresponds to the first SRS resource set and the second SRS resource set, respectively.
For each SRS resource set (e.g., a or B shown in the figure), the UE may determine the spatial relationship (e.g., X or Y) of the PUSCH from the SRIs mentioned in the foregoing embodiments corresponding to fig. 13A.
In one embodiment, in the absence of an SRS resource set indicator in the DCI, the UE may apply SRI to one or more PUSCH repetitions or to one or more PUSCHs in accordance with a first one of the plurality of SRS resource sets in the case of configuring the SRS resource set. Taking fig. 13A and 13B as an example, when two SRS resource sets are configured, an SRS resource set indicator is not present in DCI, PUSCH repetition or PUSCH may be performed based on the SRI as shown in table (2).
In one embodiment, the one or more PUSCHs may be one or more PUSCH repetitions for the TB, either when or only when the UE is indicated by the DCI to transmit the one or more PUSCHs on the serving cell. For example, fig. 14 is a schematic diagram illustrating relationship determination according to an exemplary embodiment of the present disclosure. Referring to fig. 14, cell#0 to cell#3 are candidate cells for multi-Cell scheduling. DCI indicates that cell#2 has PUSCH repetition of the same TB, e.g., pusch#20 at slot n and pusch#21 at slot n+1.
In one embodiment, the one or more PUSCHs may correspond to the one or more TBs when or only when the UE is indicated by the DCI to transmit the one or more PUSCHs on the serving cell. For example, the DCI may indicate two PUSCHs of cell#3 with different TBs, e.g., pusch#30 at slot n and pusch#31 at slot n+1.
In one embodiment, in the absence of a Sounding Reference Signal (SRS) resource indicator (SRI) in the DCI, the spatial relationship of the at least one PUSCH is determined according to one of:
spatial relationship of reference cells or co-scheduling serving cells;
a pathloss reference signal (PL-RS) configured for the SRS resource set;
a predetermined SRI associated with the SRS resource set;
a Transmission Configuration Indicator (TCI) state with an Identification (ID) of a Physical Downlink Shared Channel (PDSCH);
an ID of a Physical Uplink Control Channel (PUCCH);
quasi co-location (QCL) assumptions; and
the ID of the control resource set (CORESET). The case is, for example, that the DCI does not carry an SRI or does not have a corresponding field of an SRI. In the case of another example, the DCI has a corresponding field of the SRI, but the field is configured to be zero, null or invalid.
In one embodiment, in the case where one SRS resource set is configured for a serving cell, when the UE is indicated by DCI to transmit one or more PUSCHs on the serving cell, the UE may determine a spatial relationship of the one or more PUSCHs according to a spatial setup/relationship of the reference/co-scheduled serving cell. The reference/co-scheduled serving cell may be configured by the network device or according to a predetermined rule, e.g., a lowest cell ID among co-scheduled cells. The reference/co-scheduled cells may be indicated in spatial relationship via an SRI field in the DCI.
For example, fig. 15 is a diagram illustrating relationship determination of one set of Sounding Reference Signal (SRS) resources configured for a serving cell according to an exemplary embodiment of the present disclosure. Referring to fig. 15, dci contains an SRI field of pusch#1 in cell#0. Cell#0 is a reference Cell for cell#1 to cell#3. The UE determines the spatial relationship of pusch#2 and pusch#3 from the SRI of pusch#1. For example, sri=0 is configured for pusch#1, and the spatial relationship of pusch#2 and pusch#3 will also correspond to sri=0.
In one embodiment, in the case where one SRS resource set is configured for a serving cell, when the UE is indicated by DCI to transmit one or more PUSCHs on the serving cell, the UE may determine the spatial relationship of the one or more PUSCHs according to the spatial relationship of PL-RSs configured for the SRS resource set or a (e.g., first) predetermined SRI associated with the SRS resource set. For example, when there is no SRI in the DCI (e.g., corresponding to a serving cell), when there is no reference cell for determining spatial relationship, and/or when a reference cell of a serving cell is not scheduled by the DCI, the predetermined SRI will correspond to the spatial relationship of PUSCH. When the UE is indicated by the DCI to transmit one or more PUSCHs on the serving cell, the UE may not transmit the one or more PUSCHs when no SRIs are present in the DCI (e.g., corresponding to the serving cell).
In one embodiment, in the case where one SRS resource set is configured for a serving cell, when the UE is indicated by DCI to transmit one or more PUSCHs on the serving cell, the UE may determine a spatial relationship of the one or more PUSCHs according to an active PDSCH TCI state with an ID (e.g., lowest ID) in an active DL BWP of the serving cell. For example, when there is no SRI in the DCI (e.g., corresponding to a serving cell), when there is no reference cell for determining spatial relationship, and/or when a reference cell of a serving cell is not scheduled by the DCI, the active PDSCH TCI state with the lowest ID in the active DL BWP will correspond to the spatial relationship of PUSCH.
Fig. 16 is a diagram illustrating relationship determination of one SRS resource set configured for a serving cell according to an exemplary embodiment of the present disclosure. Referring to fig. 16, the ue may determine the spatial relationship of pusch#1 according to the active PDSCH TCI state with the lowest ID in the active DL BWP of cell#1.
In one embodiment, in the case where one SRS resource set is configured for a serving cell, when the UE is indicated by DCI to transmit one or more PUSCHs on the serving cell, the UE may determine a spatial relationship of the one or more PUSCHs according to a spatial setting/relationship of the PUCCH having an ID (e.g., lowest ID). For example, when there is no SRI in the DCI (e.g., corresponding to a serving cell), when there is no reference cell for determining spatial relationship, and/or when the reference cell of the serving cell is not scheduled by the DCI, the spatial setting/relationship of the PUCCH with the lowest ID will correspond to the spatial relationship of PUSCH. The PUCCH may be configured in a serving cell. The PUCCH may be configured in another serving cell and within the same cell group (e.g., PUCCH cell group) as the serving cell.
Taking fig. 16 as an example, the UE determines the spatial relationship of pusch#1 from the spatial setup/relationship of PUCCH having the lowest ID of cell#1. cell #1 may be a Pcell, a PScell, a PUCCH Scell, or a PUCCH scsell.
In one embodiment, in case of configuring the plurality of SRS resource sets, the UE may determine a first relationship between at least one of the plurality of SRS resource sets and one or more PUSCH repetitions or a second relationship between at least one of the plurality of SRS resource sets and one or more PUSCHs according to the SRS resource set indicator in the DCI. The UE may transmit the one or more PUSCH repetitions according to a first relationship between at least one of the SRS resource sets and the one or more PUSCH repetitions, or the one or more PUSCHs according to a second relationship between at least one of the SRS resource sets and the one or more PUSCHs. For example, when two SRS resource sets are configured for a serving cell, the (e.g., multi-cell) scheduling DCI may indicate the following transmission scheme with less DCI overhead:
scheme 0: multi-TRP operation
Scheme 1: SRS resource set selection (panel selection),
there is a (e.g., 1-bit) SRS resource set indicator corresponding to the serving cell in the DCI,
for example, panel selection for single TRP operation;
Scheme 2: dynamic single/multiple TRP operation (e.g., for transport blocks),
there is no SRS resource set indicator corresponding to the serving cell in the DCI,
for example, single TRP/multiple TRP operation.
In one embodiment, in scheme 0, the UE is indicated by the DCI to transmit one or more PUSCHs on the serving cell, and there is an SRS resource set indicator (e.g., with 2 bits) in the DCI corresponding to the serving cell. For example, if the DCI indicates a code point "00" for an SRS resource set indicator, the first SRS resource set may be associated with one or more PUSCHs. If the DCI indicates a code point "01" for an SRS resource set indicator, the second SRS resource set may be associated with one or more PUSCHs. If the DCI indicates a code point "10" for an SRS resource set indicator, then the first and second SRS resource sets are applied to the first and second PUSCH repetitions, respectively (if present), and the same SRS resource set mapping pattern continues to the remaining PUSCH repetitions (if present). If the DCI indicates a code point "11" for the SRS resource set indicator, the second SRS resource set and the first SRS resource set are applied to the first PUSCH repetition and the second PUSCH repetition, if present, respectively, and the same SRS resource set mapping mode continues to the remaining PUSCH repetition, if present.
In one embodiment, in scheme 0, the UE is indicated by the DCI to transmit one or more PUSCHs on the serving cell, and there is an SRS resource set indicator (e.g., with 1 bit) in the DCI corresponding to the serving cell. For example, if the DCI indicates a code point "0" for an SRS resource set indicator, the first and second SRS resource sets are applied to the first and second PUSCH repetitions, respectively (if present), and the same SRS resource set mapping pattern continues to the remaining PUSCH repetitions (if present). If the DCI indicates a code point "1" for the SRS resource set indicator, the second SRS resource set and the first SRS resource set are applied to the first PUSCH repetition and the second PUSCH repetition, if present, respectively, and the same SRS resource set mapping mode continues to the remaining PUSCH repetition, if present.
For example, fig. 17 is a schematic diagram illustrating relationship determination of multi-panel operation according to an exemplary embodiment of the present disclosure. Referring to fig. 17, table (4) is a mapping table between SRS resource set indicators and PUSCH repetition schemes. If the SRS resource set indicator is configured with a code point of "0," the PUSCH repetition pattern will be "AB" or "AABB. If the SRS resource set indicator is configured with a code point of "1," the PUSCH repetition pattern would be "BA" or "BBAA.
Watch (4)
| SRS resource set indicator | PUSCH repetition scheme |
| 0 | ABAB … or AABB … |
| 1 | BABA … or BBAA … |
In one embodiment, in scheme 0, the UE is indicated by the DCI to transmit one or more PUSCHs on the serving cell, and there is an SRS resource set indicator in the DCI corresponding to the serving cell. The UE may determine one or more spatial relationships of one or more PUSCHs from two SRIs of a serving cell in the DCI, where a first SRI may be associated with a first set of SRS resources indicated in the DCI and a second SRI may be associated with a second set of SRS resources indicated in the DCI.
In one embodiment, in the absence of SRI in DCI, the UE may determine the spatial relationship of at least one PUSCH according to one of:
a predetermined SRI associated with one of the SRS resource sets;
a pathloss reference signal (PL-RS) configured for one of the SRS resource sets;
a Transmission Configuration Indicator (TCI) state with an Identification (ID) of a Physical Downlink Shared Channel (PDSCH);
an ID of a Physical Uplink Control Channel (PUCCH); and
quasi co-location (QCL) assumes or controls the value of the resource set (CORESET).
For example, if there is no serving cell's SRI in the DCI, then for a spatial relationship applied to the first SRS resource set, a predetermined SRI (e.g., the first SRI) may be associated with the first SRS resource set and/or a spatial relationship configured as PL-RS for the first SRS resource set may be applied. Further, for spatial relationships applied to the second SRS resource set, the predetermined SRI (e.g., the second SRI) may be associated with the second SRS resource set and/or spatial relationships configured for PL-RSs of the second SRS resource set may be applied.
For example, if there is no SRI for the serving cell in the DCI, the UE may determine at least one spatial relationship of the one or more PUSCHs from the active PDSCH TCI state having an ID (e.g., the lowest ID) and having 2 TCI states in the active DL BWP for the serving cell, e.g., the first and second TCI states of the PDSCH TCI state ID correspond to the spatial relationships of the first and second SRS resource sets, respectively.
For example, if there is no SRI of the serving cell in the DCI, the UE may determine at least one spatial relationship of one or more PUSCHs according to the spatial setup/relationship of the PUCCH with the ID (e.g., lowest ID), e.g., the spatial setup/relationship with a lower or higher ID configured for PUCCH corresponds to the spatial relationship of the first and second SRS resource sets, respectively.
For example, if there is no SRI for the serving cell in the DCI, the UE may determine at least one spatial relationship of the one or more PUSCHs from (e.g., type D) QCL hypotheses or spatial relationships of the CORESET having an ID (e.g., lowest ID), e.g., a first TCI state or a second TCI state configured for CORESET corresponds to the spatial relationship of the first SRS resource set and the second SRS resource set, respectively; the TCI state of CORESET configured for the first CORESET pool index corresponds to the spatial relationship of the first SRS resource set, and the TCI state of CORESET configured for the second CORESET pool index corresponds to the spatial relationship of the second SRS resource set.
For example, if there is no SRI for the serving cell in the DCI, the UE may determine at least one spatial relationship for one or more PUSCHs applied to the first SRS resource set from one SRI for the serving cell in the DCI associated with the first SRS resource set. For another example, if there is no SRI of the serving cell in the DCI, the UE may determine at least one spatial relationship of one or more PUSCHs applied to the second SRS resource set according to: the predetermined SRI associated with the second SRS resource set (e.g., the first), the spatial relationship configured for PL-RSs of the second SRS resource set, the active PDSCH TCI state with ID (e.g., lowest ID) and with 2 TCI states in the active DL BWP of the serving cell, the spatial setup/relationship of PUCCH with ID (e.g., lowest ID), and/or the (e.g., type D) QCL hypothesis or spatial relationship of CORESET with ID (e.g., lowest ID).
Fig. 18 is a schematic diagram illustrating panel selection according to an exemplary embodiment of the present disclosure. Referring to fig. 18, in scheme 1, a UE is indicated by DCI to transmit at least one or more PUSCHs on a serving cell, and an SRS resource set indicator (e.g., having 1 bit) corresponding to the serving cell is present in the DCI. If the DCI indicates a code point "0" for an SRS resource set indicator, the first SRS resource set may be associated with one or more PUSCHs (e.g., case 1 in the figure). If the DCI indicates a code point "1" for an SRS resource set indicator, a second SRS resource set may be associated with one or more PUSCHs (e.g., case 2 in the figure).
In one embodiment, in scheme 1, the UE is indicated by the DCI to transmit at least one or more PUSCHs on the serving cell, and there is an SRS resource set indicator (e.g., with 1 bit) in the DCI corresponding to the serving cell. The UE may determine one or more spatial relationships of one or more PUSCHs from one or more SRI fields in the DCI. One SRI field may correspond to a serving cell. The UE may apply the indicated SRI to one or more PUSCHs according to the associated SRS resource set indicated by the SRS resource set indicator. The serving cell may be a reference serving cell (e.g., configured by a network device or according to a cell ID) for determining SRIs of all or a subset of candidate serving cells. For any serving cell within the candidate cells for multi-cell scheduling (or for any cell within the same subgroup), the UE may determine a spatial relationship from the reference cell and the SRI.
For example, fig. 19 is a schematic diagram illustrating relationship determination of multi-panel operation according to an exemplary embodiment of the present disclosure. Referring to fig. 19, an SRS resource set indicator corresponding to a first SRS resource set is configured in DCI provided by TRP # 1. The UE may further check the SRI field corresponding to the serving cell provided by TRP #1 and perform PUSCH transmission according to the SRI field corresponding to the serving cell (e.g., sri= "0").
In one embodiment, in scheme 1, the UE is indicated by the DCI to transmit at least one or more PUSCHs on the serving cell, and there is an SRS resource set indicator (e.g., with 1 bit) in the DCI corresponding to the serving cell. In the absence of SRI in DCI, the UE may determine one or more spatial relationships of one or more PUSCHs according to one of:
spatial setup/relation of reference/co-scheduled serving cells,
for example, the SRI of the reference cell (according to SRS resource set indicator);
an active PDSCH TCI state with an ID (e.g., lowest ID) in the active DL BWP of the serving cell, e.g., a first TCI state or a second TCI state of the PDSCH TCI state ID (according to the SRS resource set indicator);
the spatial setup/relationship of PUCCH with ID (e.g., lowest ID),
for example, spatial setup/relationship of PUCCH with ID (e.g., lowest ID); and
the (e.g., type D) QCL hypothesis or spatial relationship of CORESET with ID (e.g., lowest ID),
for example, the first TCI state or the second TCI state of the PDSCH TCI state ID (according to the SRS resource set indicator). The UE may assume scheduling one or more PUSCHs with a single layer (single antenna port) transmission.
In one embodiment, in scheme 1, the UE is indicated by the DCI to transmit at least one or more PUSCHs on the serving cell, and there is an SRS resource set indicator (e.g., with 1 bit) in the DCI corresponding to the serving cell. The UE may determine one or more spatial relationships of the one or more PUSCHs according to a spatial relationship of pl_rss configured for the SRS resource set indicated by the SRS resource set indicator or an active PDSCH TCI state (e.g., a first TCI state and a second TCI state of a PDSCH TCI state ID corresponding to spatial relationships of the first SRS resource set and the second SRS resource set, respectively) having an ID (e.g., a lowest ID) and having 2 TCI states in an active SL BWP of the serving cell. The UE may assume scheduling one or more PUSCHs with a single layer (single antenna port) transmission.
For example, when there is no SRI in the DCI (e.g., corresponding to a serving cell), when there is no reference cell for determining spatial relationships, and/or when the reference cell of the serving cell is not scheduled by the DCI, the UE may determine the spatial relationships of PUSCH as pl_rs configured as the indicated SRS resource set in the DCI or as active PSCH TCI state with the lowest ID and 2 TCI states.
In scheme 2, the UE is indicated by the DCI to transmit one or more PUSCHs on the serving cell, and the DCI may dynamically indicate single or multiple TRP transmissions for the one or more PUSCHs. In one embodiment, the UE may determine the spatial relationship of one or more PUSCHs from one or more demodulation reference signal (DMRS) ports indicated by an antenna port field in the DCI.
For example, fig. 20 is a schematic diagram illustrating dynamic single/multi-panel operation according to an exemplary embodiment of the present disclosure. Referring to fig. 20, in case 1, a DCI field in DCI indicates a DMRS port corresponding to a first SRS resource set, and a UE may perform PUSCH transmission on the first SRS resource set. In case 2, a DCI field in the DCI indicates DMRS ports corresponding to a first SRS resource set and a second SRS resource set, and the UE may perform PUSCH transmission for the first SRS resource set and the second SRS resource set.
In one embodiment, the plurality of DMRS ports includes two DMRS ports multiplexed in one or more symbol DMRS in a code division manner, and each DMRS port is associated with a DMRS Code Division Multiplexing (CDM) group.
For example, fig. 21 is a schematic diagram illustrating association of demodulation reference signal (DMRS) ports with Code Division Multiplexing (CDM) groups according to an exemplary embodiment of the present disclosure. Referring to fig. 21, antenna ports 1000/1001 correspond to a first SRS resource set and antenna ports 1002/1003 correspond to a second SRS resource set. In one symbol DMRS and one PRB, two DMRS ports are multiplexed in a code division manner.
Table (5) is a mapping table between DMRS ports and SRS resource sets, where the transform precoder is deactivated, DMRS-type=1, maxlength=1, and rank=1.
Watch (5)
Table (6) is a mapping table between DMRS ports and SRS resource sets, where the transform precoder is deactivated, DMRS-type=1, maxlength=1, and rank=2.
Watch (6)
Table (7) is a mapping table between DMRS ports and SRS resource sets, defaulting to multi-panel, with the transform precoder deactivated, DMRS-type=1, maxlength=1, and rank=3.
Watch (7)
Table (8) is a mapping table between DMRS ports and SRS resource sets, defaulting to multi-panel, with the transform precoder deactivated, DMRS-type=1, maxlength=1, and rank=4.
Watch (8)
Table (9) is a mapping table between DMRS ports and SRS resource sets for single/multi-panel operation, where the transform precoder is deactivated, DMRS-type=1, maxlength=1, and rank=3.
Watch (9)
Table (10) is a mapping table between DMRS ports and SRS resource sets for single/multi-panel operation, where the transform precoder is deactivated, DMRS-type=1, maxlength=1, and rank=4.
Watch (10)
Fig. 22 is a schematic diagram illustrating association of DMRS ports with CDM groups according to an exemplary embodiment of the present disclosure. Referring to fig. 22, antenna port 1000/1001/1004/1005 corresponds to a first SRS resource set and antenna port 1002/1003/1006/1007 corresponds to a second SRS resource set. In two symbols DMRS and one PRB, two DMRS ports are multiplexed in a code division manner.
Table (11) is a mapping table between DMRS ports and SRS resource sets, where the transform precoder is deactivated, DMRS-type=1, maxlength=2, and rank=1.
Watch (11)
Table (12) is a mapping table between DMRS ports and SRS resource sets, where the transform precoder is deactivated, DMRS-type=1, maxlength=2, and rank=2.
Watch (12)
Table (13) is a mapping table between DMRS ports and SRS resource sets, where the transform precoder is deactivated, DMRS-type=1, maxlength=2, and rank=3.
Watch (13)
Table (14) is a mapping table between DMRS ports and SRS resource sets, where the transform precoder is deactivated, DMRS-type=1, maxlength=2, and rank=4.
Watch (14)
In one embodiment, in scheme 2, the UE is indicated by the DCI to transmit one or more PUSCHs on the serving cell, and the DCI may dynamically indicate single or multiple TRP transmissions for the one or more PUSCHs. The UE may determine the spatial relationship of one or more PUSCHs from the two SRIs of the serving cell in the DCI. The two SRIs include a first SRI and a second SRI. The first SRI may be associated with a first set of SRS resources indicated in the DCI. The second SRI may be associated with a second set of SRS resources indicated in the DCI. Taking fig. 19 as an example, sri= "0" and sri= "1" are configured in DCI, and PUSCH transmission is performed on SRS resources corresponding to SRI.
In one embodiment, in scheme 2, the UE is indicated by the DCI to transmit one or more PUSCHs on the serving cell, and the DCI may dynamically indicate single or multiple TRP transmissions for the one or more PUSCHs. In the absence of SRIs (e.g., no SRIs) in the DCI, the UE may determine a spatial relationship to apply to one or more PUSCHs of the first SRS resource set based on a (e.g., first) predetermined SRI associated with the first SRS resource set and/or a spatial relationship of PL-RSs configured for the first SRS resource set.
In one embodiment, in scheme 2, the UE is indicated by the DCI to transmit one or more PUSCHs on the serving cell, and the DCI may dynamically indicate single or multiple TRP transmissions for the one or more PUSCHs. In the absence of SRIs (e.g., no SRIs) in the DCI, the UE may determine a spatial relationship to apply to one or more PUSCHs of the second SRS resource set based on a (e.g., second) predetermined SRI associated with the second SRS resource set and/or a spatial relationship of PL-RSs configured for the second SRS resource set.
In one embodiment, in scheme 2, the UE is indicated by the DCI to transmit one or more PUSCHs on the serving cell, and the DCI may dynamically indicate single or multiple TRP transmissions for the one or more PUSCHs. In the absence of SRI (e.g., no SRI) in the DCI, the UE may determine the spatial relationship of one or more PUSCHs according to at least one of:
an active PDSCHTCI state with an ID (e.g., lowest ID) and with 2 TCI states in the active DL BWP of the serving cell,
for example, the first TCI state and the second TCI state of the PDSCHTCI state ID correspond to the spatial relationship of the first SRS resource set and the second SRS resource set, respectively;
the spatial setup/relationship of PUCCH with ID (e.g., lowest ID),
For example, spatial settings/relationships with lower or higher IDs configured for PUCCH correspond to spatial relationships of the first SRS resource set and the second SRS resource set, respectively;
the (e.g., type D) QCL hypothesis or spatial relationship of CORESET with ID (e.g., lowest ID),
for example, the first TCI state or the second TCI state configured for CORESET corresponds to a spatial relationship of the first SRS resource set and the second SRS resource set, respectively,
for example, the TCI state of CORESET configured for a first CORESET pool index corresponds to the spatial relationship of the first SRS resource set, and the TCI state of CORESET configured for a second CORESET pool index corresponds to the spatial relationship of the second SRS resource set.
In one embodiment, in scheme 2, the UE is indicated by the DCI to transmit one or more PUSCHs on the serving cell, and the DCI may dynamically indicate single or multiple TRP transmissions for the one or more PUSCHs. In the case of configuring multiple SRS resource sets, the UE may apply a Sounding Reference Signal (SRS) resource indicator (SRI) to one or more Physical Uplink Shared Channels (PUSCHs) repetition or to one or more PUSCHs according to one SRS resource set. That is, one SRS resource set is used to transmit one or more Physical Uplink Shared Channels (PUSCHs) repeatedly or to transmit one or more PUSCHs, i.e., single-panel uplink transmissions. The SRI is determined by one SRS resource indicator contained in a first DCI field, and the DCI contains the first DCI field. The UE may determine a spatial relationship of one or more PUSCHs applied to the first SRS resource set from one SRI of a serving cell in the DCI associated with the first SRS resource set.
In one embodiment, in scheme 2, the UE is indicated by the DCI to transmit one or more PUSCHs on the serving cell, and the DCI may dynamically indicate single or multiple TRP transmissions for the one or more PUSCHs. In the absence of an SRS resource set indicator in the DCI, the UE may apply SRI to one or more PUSCH repetitions or to one or more PUSCHs according to one SRS resource set with both SRS resource sets configured. In this case, for example, the DCI does not carry the SRS resource set indicator or does not have a corresponding field of the SRS resource set indicator. In the case, for another example, the DCI has a corresponding field of the SRS resource set indicator, but the field is configured to be zero, null or invalid.
In one embodiment, in scheme 2, the UE is indicated by the DCI to transmit one or more PUSCHs on the serving cell, and the DCI may dynamically indicate single or multiple TRP transmissions for the one or more PUSCHs. The UE may determine a spatial relationship of one or more PUSCHs applied to the second SRS resource set according to at least one of:
a predetermined SRI associated with the second SRS resource set (e.g., the first);
a spatial relationship of PL-RSs configured for the 2 nd SRS resource set;
an active PDSCH TCI state with an ID (e.g., lowest ID) and with 2 TCI states in the active DL BWP of the serving cell;
Spatial setup/relationship of PUCCH with ID (e.g. lowest ID);
the (e.g., type D) QCL hypothesis or spatial relationship of CORESET with the ID (e.g., lowest ID).
Fig. 23 is a flowchart illustrating a method of processing multi-cell scheduling according to an exemplary embodiment of the present disclosure. Referring to fig. 23, the method is applicable to a network device. The network device configures DCI to schedule a first number of multiple scheduling cells (step S2310). The network device transmits DCI to the UE via the first serving cell for performing a plurality of multi-cell communications on the scheduling cell (step S2320). The DCI includes one or more individual DCI fields, and one or more configurable DCI fields. Multi-cell communication is reception of PDSCH or transmission of PUSCH on multiple cells.
In one embodiment, a single DCI field corresponds to at least one of a first number of multiple scheduling cells.
In one embodiment, the single DCI field includes at least one of:
an identifier of the DCI format;
a co-scheduling cell indicator;
a dynamic bandwidth part (BWP) indicator for a plurality of scheduling cells supporting BWP handover;
downlink assignment index;
a Transmit Power Control (TPC) command for a Physical Uplink Control Channel (PUCCH);
PUCCH resource indicator;
physical downlink shared channel to hybrid automatic repeat request (PDSCH to HARQ) timing indicator;
one-shot HARQ-ACK request;
a beta offset indicator;
a Channel State Information (CSI) request; and
time Domain Resource Allocation (TDRA).
In one embodiment, the individual DCI field corresponds to a second number of information blocks, and each information block indicates control information of one of the plurality of scheduling cells.
In one embodiment, the second number of information blocks is placed according to an ascending order of serving cell indexes, and the first information block corresponds to a minimum serving cell index.
In one embodiment, the second number is equal to the first number.
In one embodiment, the control information corresponds to one of:
new Data Indicator (NDI);
redundancy Version (RV);
modulation Coding Scheme (MCS); and
frequency Domain Resource Assignment (FDRA).
In one embodiment, the network device may configure each configurable DCI field to correspond to a first number of scheduling cells if the configurable DCI field is of a first type, and the network device configures each configurable DCI field to include a plurality of information blocks if the configurable DCI field is of a second type, wherein each information block corresponds to the first number. For example, RRC signaling includes information indicating the type of configurable DCI field.
In one embodiment, the configurable DCI field includes at least one of:
a rate matching indicator;
zero Power (ZP) channel state information reference signal (CSI-RS) triggering;
precoding information and the number of layers;
phase tracking reference signal demodulation reference signal (PTRS-DMRS) correlation;
an antenna port;
a Transmission Configuration Indicator (TCI);
a Sounding Reference Signal (SRS) request;
initializing a DMRS sequence;
SRS Resource Indicator (SRI); and
physical Reference Block (PRB) bundling size indicator.
In one embodiment, the network device may configure the lengths of the information blocks in the individual DCI fields or in the configurable DCI fields to be the same, and/or the network device may configure the lengths of the information blocks in the individual DCI fields or in the configurable DCI fields according to at least one higher layer signaling.
In one embodiment, the DCI is configured in a UE-specific search space (USS) and the length of the DCI is determined according to at least one higher layer configuration.
In one embodiment, the DCI is scrambled by a cell radio network temporary identity (C-RNTI) and the length of the DCI is not equal to the length of a first DCI having a different format scrambled by the C-RNTI.
In one embodiment, a network device may transmit a Sounding Reference Signal (SRS) resource indicator (SRI), where the SRI is determined by one SRS resource indicator contained in a first DCI field, and the DCI contains the first DCI field.
In one embodiment, the SRS resource set indicator is absent from the DCI.
Fig. 24 is a block diagram illustrating a communication device according to an exemplary embodiment of the present disclosure. Referring to fig. 24, the communication device 2400 may be a UE or a network device. Communication device 2400 may include, but is not limited to, a processor 2410. The processor 2410 (e.g., with processing circuitry) may include intelligent hardware devices, such as a central processing unit (Central Processing Unit, CPU), microcontroller, ASIC, etc. The processor 2410 may call and run a computer program from memory to implement the methods in embodiments of the present disclosure.
Since the program code stored in the communication device 2400, when executed by the processor 2410, employs all of the technical solutions of all of the foregoing embodiments, has at least all of the advantageous effects of all of the technical solutions of all of the foregoing embodiments, and no further description is incorporated herein.
Optionally, as shown in fig. 24, the communication device 2400 may also include a memory 2420. Memory 2420 may include computer storage media in the form of volatile and/or nonvolatile memory. The memory 2420 may be removable, non-removable, or a combination thereof. Exemplary memory includes solid state memory, hard drives, optical drives, and the like. The processor 2410 may call and run a computer program from the memory 2420 to implement the methods in embodiments of the present disclosure.
The memory 2420 may be a separate device from the processor 2410, or may be integrated in the processor 2410.
Optionally, as shown in fig. 24, the communication device 2400 may also include a transceiver 2430, and the processor 2410 may control the transceiver 2430 to communicate with other devices. A transceiver 2430 with a transmitter (e.g., transmit/transmit circuitry) and a receiver (e.g., receive/receive circuitry) may be configured to transmit and/or receive time and/or frequency resource partition information. In some implementations, transceiver 2430 may be configured to transmit in different types of subframes and slots, including but not limited to available, unavailable, and flexibly available subframe and slot formats. The transceiver 2430 can be configured to receive data and control channels.
In particular, transceiver 2430 may send information or data to, or receive information or data sent by, other devices.
In particular, transceiver 2430 may include a transmitter and a receiver. The transceiver 2430 may also include antennas, and the number of antennas may be one or greater than one.
Optionally, in embodiments of the present disclosure, the communication device 2400 may be specifically a network device, and the communication device 2400 may implement the corresponding processes implemented by the network device in the various methods of embodiments of the present disclosure. For the sake of brevity, the related description is omitted.
Optionally, in embodiments of the present disclosure, the communication device 2400 may be specifically a mobile terminal, a terminal device, or a UE, and the communication device 2400 may implement the corresponding processes implemented by the mobile terminal, terminal device, or UE in various methods in embodiments of the present disclosure. For the sake of brevity, the related description is omitted.
In summary, in the method and UE for processing multi-cell scheduling according to the embodiments of the present disclosure, a new type of DCI field supporting multi-panel operation for multi-cell scheduling is defined.
It will be apparent to those skilled in the art that various modifications and variations can be made to the disclosed embodiments without departing from the scope or spirit of the disclosure. In view of the above, it is intended that the present disclosure cover modifications and variations that fall within the scope of the appended claims and their equivalents.
Claims (61)
1. A method for use by a user equipment of handling multi-cell scheduling, the method comprising:
receiving downlink control information DCI from a first service cell;
determining a first number of a plurality of scheduling cells according to the downlink control information, wherein the downlink control information is configured to schedule at least one communication on the plurality of scheduling cells; and
Performing the at least one communication for at least one of the first number of the plurality of scheduling cells according to the downlink control information, wherein
The downlink control information includes at least one single downlink control information field, at least one individual downlink control information field, and at least one configurable downlink control information field.
2. The method for handling multi-cell scheduling for use by a user equipment according to claim 1, wherein said single downlink control information field corresponds to said at least one of said plurality of scheduling cells of said first number.
3. The method for handling multi-cell scheduling for use by a user equipment according to claim 2, wherein the single downlink control information field comprises at least one of:
an identifier of a downlink control information format;
a co-scheduling cell indicator;
a bandwidth part indicator of the plurality of scheduling cells supporting dynamic bandwidth part BWP handover;
downlink assignment index;
a transmission power control TPC command of a physical uplink control channel PUCCH;
physical uplink control channel resource indicator;
a physical downlink shared channel requests a PDSCH-to-HARQ timing indicator for hybrid automatic repeat request;
A one-shot hybrid automatic repeat request acknowledgement request;
a beta offset indicator;
a Channel State Information (CSI) request; and
time domain resource allocation TDRA.
4. The method for handling multi-cell scheduling for use by a user equipment according to claim 1, wherein the individual downlink control information field corresponds to a second number of information blocks, and each of the information blocks indicates control information of one of the plurality of scheduling cells.
5. The method for handling multi-cell scheduling by a user equipment according to claim 4,
wherein the second number of information blocks is placed according to an ascending order of serving cell indexes and the first information block corresponds to a minimum serving cell index; and
wherein the second number is equal to the first number.
6. The method for handling multi-cell scheduling by a user equipment according to claim 4, wherein the control information corresponds to one of:
new data indicator NDI;
redundancy version RV;
modulation coding scheme, MCS; and
the frequency domain resource is assigned FDRA.
7. The method for handling multi-cell scheduling for use by a user equipment according to claim 1, further comprising:
determining that one of the at least one configurable downlink control information field corresponds to the first number of the plurality of scheduling cells if the configurable downlink control information field is of a first type; and
In the case that the configurable downlink control information field is of a second type, determining that one of the at least one configurable downlink control information field includes a plurality of information blocks, wherein each of the information blocks corresponds to a subset or one of the first number of the plurality of scheduling cells.
8. The method for handling multi-cell scheduling by a user equipment according to claim 7, wherein the configurable downlink control information field comprises at least one of:
a rate matching indicator;
zero power ZP channel state information reference signal CSI-RS triggering;
precoding information and the number of layers;
phase tracking reference signal demodulation reference signal PTRS-DMRS correlation;
an antenna port;
transmitting a configuration indicator TCI;
a sounding reference signal SRS request;
initializing a demodulation reference signal sequence;
a sounding reference signal resource indicator SRI; and
physical reference block PRB bundle size indicator.
9. The method for handling multi-cell scheduling for use by a user equipment according to claim 1, further comprising:
applying one of the configurable downlink control information fields to the plurality of scheduling cells in the event that the one of the configurable downlink control information fields lacks type information, wherein the type information indicates the one of the configurable downlink control information fields as one of the single downlink control information field or one of the individual downlink control information fields.
10. The method of handling multi-cell scheduling for use by a user equipment according to claim 1, wherein
In the event that one of the configurable downlink control information fields lacks type information, determining that one of the configurable downlink control information fields corresponds to a second number of information blocks, wherein the type information indicates one of the configurable downlink control information fields as one of the single downlink control information field or one of the individual downlink control information fields.
11. The method for handling multi-cell scheduling for use by a user equipment according to claim 1, further comprising:
determining that the lengths of information blocks in the individual downlink control information fields or in the configurable downlink control information fields are the same, or
The length of the information block in the individual downlink control information field or in the configurable downlink control information field is determined from at least one higher layer signaling.
12. The method for handling multi-cell scheduling for use by a user equipment according to claim 1, further comprising:
in the event that the downlink control information lacks control information for one of the plurality of scheduling cells, one of the at least one communication is not performed for the one of the plurality of scheduling cells.
13. The method for handling multi-cell scheduling for use by a user equipment according to claim 1, further comprising:
and applying a default value of the control information of the downlink control information under the condition that the control information is lack of the downlink control information.
14. The method for handling multi-cell scheduling for use by a user equipment according to claim 1, further comprising:
in the absence of a transmission configuration indicator, TCI, state for the downlink control information, a quasi-co-sited QCL assumption for a physical downlink shared channel of the plurality of communications is applied based on the transmission configuration indicator state having a lowest identification, ID, applicable to the physical downlink shared channel, PDSCH.
15. The method for handling multi-cell scheduling for use by a user equipment according to claim 1, wherein the step of determining the first number of the plurality of scheduling cells from the downlink control information further comprises:
determining the first number of the plurality of scheduling cells from a third number of the plurality of scheduling cells, wherein the first number is less than or equal to the third number, and the maximum number of the third number of serving cells is 4 and/or the minimum number of the first number of serving cells is 1.
16. The method for handling multi-cell scheduling for use by a user equipment according to claim 1, wherein the downlink control information is configured in a user equipment specific search space USS and the length of the downlink control information is determined according to at least one higher layer configuration.
17. The method for handling multi-cell scheduling for use by a user equipment according to claim 1, wherein the downlink control information is scrambled by a cell radio network temporary identity, C-RNTI, and the length of the downlink control information is not equal to the length of the first downlink control information having different formats scrambled by the cell radio network temporary identity.
18. The method for handling multi-cell scheduling for use by a user equipment according to claim 1, further comprising:
in case of configuring a plurality of sounding reference signal, SRS, resource sets, applying a sounding reference signal resource indicator, SRI, to at least one physical uplink shared channel, PUSCH, repetition or to at least one physical uplink shared channel, according to a first one of the plurality of sounding reference signal resource sets, wherein
The sounding reference signal resource indicator is determined by one sounding reference signal resource indicator contained in a first downlink control information field, and the first downlink control information contains the first downlink control information field.
19. The method for handling multi-cell scheduling by a user equipment according to claim 18, wherein the downlink control information lacks a sounding reference signal resource set indicator.
20. The method for handling multi-cell scheduling for use by a user equipment according to claim 1, further comprising:
in the case of configuring a plurality of sounding reference signal resource sets, determining a first relation between at least one of the plurality of sounding reference signal resource sets and at least one Physical Uplink Shared Channel (PUSCH) repetition or a second relation between the at least one of the plurality of sounding reference signal resource sets and at least one Physical Uplink Shared Channel (PUSCH) according to a sounding reference signal resource set indicator in the downlink control information; and
transmitting the at least one physical uplink shared channel repetition according to the first relationship between the at least one of a plurality of sounding reference signal resource sets and the at least one physical uplink shared channel repetition, or transmitting the at least one physical uplink shared channel according to the second relationship between the at least one of the plurality of sounding reference signal resource sets and the at least one physical uplink shared channel.
21. The method for handling multi-cell scheduling for use by a user equipment according to claim 20, wherein the step of determining the second relationship between the at least one of the plurality of sounding reference signal resource sets and the at least one physical uplink shared channel further comprises:
in the absence of a sounding reference signal, SRS, resource indicator, SRI, in the downlink control information, determining a spatial relationship of the at least one physical uplink shared channel according to one of:
a predetermined sounding reference signal resource indicator associated with one of the plurality of sounding reference signal resource sets;
a path loss reference signal, PL-RS, configured for one of the plurality of sounding reference signal resource sets;
a transmission configuration indicator TCI state with an identification ID of a physical downlink shared channel PDSCH;
identification of a Physical Uplink Control Channel (PUCCH); and
quasi co-sited QCL assumes or controls the value of resource set CORESET.
22. The method for handling multi-cell scheduling for use by a user equipment according to claim 20, wherein the step of determining the second relationship between the at least one of the plurality of sounding reference signal resource sets and the at least one physical uplink shared channel further comprises:
And determining the spatial relationship of the at least one physical uplink shared channel according to at least one sounding reference signal resource indicator field in the downlink control information.
23. The method for handling multi-cell scheduling for use by a user equipment according to claim 20, further comprising:
and determining the spatial relationship of the at least one physical uplink shared channel according to at least one demodulation reference signal (DMRS) port indicated by an antenna port field in the downlink control information.
24. The method for handling multi-cell scheduling for use by a user equipment according to claim 1, further comprising:
in the absence of the sounding reference signal, SRS, resource indicator, SRI, in the downlink control information, determining a spatial relationship of at least one physical uplink shared channel according to one of:
spatial relationship of reference cells or co-scheduling serving cells;
a path loss reference signal PL-RS configured for a set of sounding reference signal resources;
a predetermined sounding reference signal resource indicator associated with the set of sounding reference signal resources;
a transmission configuration indicator TCI state with an identification ID of a physical downlink shared channel PDSCH;
identification of a Physical Uplink Control Channel (PUCCH);
Quasi co-sited QCL assumption; and
the identity of the resource set CORESET is controlled.
25. A user equipment, comprising:
a transceiver for transmitting or receiving signals;
a memory for storing program code; and
a processor coupled to the transceiver and the memory and configured to execute the program code to:
receiving Downlink Control Information (DCI) from a first service cell through the transceiver;
determining a first number of a plurality of scheduling cells according to the downlink control information, wherein the downlink control information is configured to schedule at least one communication on the plurality of scheduling cells; and
performing the at least one communication for at least one of the first number of the plurality of scheduling cells according to the downlink control information, wherein
The downlink control information includes at least one single downlink control information field, at least one individual downlink control information field, and at least one configurable downlink control information field.
26. The user equipment of claim 25, wherein the single downlink control information field corresponds to the at least one of the first number of the plurality of scheduling cells.
27. The user equipment of claim 26, wherein the at least one single downlink control information field comprises at least one of:
an identifier of a downlink control information format;
a co-scheduling cell indicator;
a bandwidth part indicator of the plurality of scheduling cells supporting dynamic bandwidth part BWP handover;
downlink assignment index;
a transmission power control TPC command of a physical uplink control channel PUCCH;
physical uplink control channel resource indicator;
a physical downlink shared channel requests a PDSCH-to-HARQ timing indicator for hybrid automatic repeat request;
a one-shot hybrid automatic repeat request acknowledgement request;
a beta offset indicator;
a Channel State Information (CSI) request; and
time domain resource allocation TDRA.
28. The user equipment of claim 25, wherein the individual downlink control information field corresponds to a second number of information blocks, and each of the information blocks indicates control information for one of the plurality of scheduling cells.
29. The user equipment of claim 28, wherein
The second number of information blocks is placed according to an ascending order of serving cell indexes, and the first information block corresponds to a minimum serving cell index; and
Wherein the second number is equal to the first number.
30. The user equipment of claim 28, wherein the control information corresponds to one of:
new data indicator NDI;
redundancy version RV;
modulation coding scheme, MCS; and
the frequency domain resource is assigned FDRA.
31. The user equipment of claim 25, wherein the processor is further configured to:
determining that each of the at least one configurable downlink control information field corresponds to the first number of the plurality of scheduling cells if the configurable downlink control information field is of a first type; and
in the case that the configurable downlink control information fields are of a second type, determining that each of the at least one configurable downlink control information field includes a plurality of information blocks, wherein each of the information blocks corresponds to a subset or one of the first number of the plurality of scheduling cells.
32. The user equipment of claim 31, wherein the configurable downlink control information field comprises at least one of:
a rate matching indicator;
zero power ZP channel state information reference signal CSI-RS triggering;
Precoding information and the number of layers;
phase tracking reference signal demodulation reference signal PTRS-DMRS correlation;
an antenna port;
transmitting a configuration indicator TCI;
a sounding reference signal SRS request;
initializing a demodulation reference signal sequence;
a sounding reference signal resource indicator SRI; and
physical reference block PRB bundle size indicator.
33. The user equipment of claim 25, wherein the processor is further configured to:
applying the configurable downlink control information field to the plurality of scheduling cells in the absence of type information for the configurable downlink control information field, wherein the type information indicates one of the configurable downlink control information fields as one of the single downlink control information field or one of the individual downlink control information fields.
34. The user equipment of claim 25, wherein the processor is further configured to:
in the event that the configurable downlink control information field lacks type information, determining that the configurable downlink control information field corresponds to a second number of information blocks, wherein the type information indicates one of the configurable downlink control information fields as one of the single downlink control information field or one of the individual downlink control information fields.
35. The user equipment of claim 25, wherein the processor is further configured to:
determining that the lengths of information blocks in the individual downlink control information fields or in the configurable downlink control information fields are the same, or
The length of the information block in the individual downlink control information field or in the configurable downlink control information field is determined from at least one higher layer signaling.
36. The user equipment of claim 25, wherein the processor is further configured to:
in the event that the downlink control information lacks control information for one of the plurality of scheduling cells, one of the at least one communication is not performed for the one of the plurality of scheduling cells.
37. The user equipment of claim 25, wherein the processor is further configured to:
and applying a default value of the control information of the downlink control information under the condition that the control information is lack of the downlink control information.
38. The user equipment of claim 25, wherein the processor is further configured to:
in the absence of a transmission configuration indicator, TCI, state for the downlink control information, a quasi-co-sited QCL assumption for a physical downlink shared channel of the plurality of communications is applied based on the transmission configuration indicator state having a lowest identification, ID, applicable to the physical downlink shared channel, PDSCH.
39. The user equipment of claim 25, wherein the processor is further configured to:
determining the first number of the plurality of scheduling cells from a third number of the plurality of scheduling cells, wherein the first number is less than or equal to the third number, and the maximum number of the third number of serving cells is 4 and/or the minimum number of the first number of serving cells is 1.
40. The user equipment of claim 25, wherein the downlink control information is configured in a user equipment specific search space USS, and the length of the downlink control information is determined according to at least one higher layer configuration.
41. The user equipment of claim 25, wherein the downlink control information is scrambled by a cell radio network temporary identity C-RNTI and the length of the downlink control information is not equal to a length of first downlink control information having a different format scrambled by the cell radio network temporary identity.
42. The user equipment of claim 25, wherein the processor is further configured to:
in case of configuring a plurality of sounding reference signal, SRS, resource sets, applying a sounding reference signal resource indicator, SRI, to at least one physical uplink shared channel, PUSCH, repetition or to at least one physical uplink shared channel, according to a first one of the plurality of sounding reference signal resource sets, wherein
The sounding reference signal resource indicator is determined by one sounding reference signal resource indicator contained in a first downlink control information field, and the first downlink control information contains the first downlink control information field.
43. The user equipment according to claim 42, wherein the downlink control information lacks a sounding reference signal resource set indicator.
44. The user equipment of claim 25, wherein the processor is further configured to:
in the case of configuring a plurality of sounding reference signal resource sets, determining a first relation between at least one of the plurality of sounding reference signal resource sets and at least one Physical Uplink Shared Channel (PUSCH) repetition or a second relation between the at least one of the plurality of sounding reference signal resource sets and at least one Physical Uplink Shared Channel (PUSCH) according to a sounding reference signal resource set indicator in the downlink control information; and
transmitting, by the transceiver, the at least one physical uplink shared channel repetition according to the first relationship between the at least one of a plurality of sounding reference signal resource sets and the at least one physical uplink shared channel repetition, or the at least one physical uplink shared channel according to the second relationship between the at least one of the plurality of sounding reference signal resource sets and the at least one physical uplink shared channel.
45. The user equipment of claim 44, wherein the processor is further configured to:
in the absence of a sounding reference signal, SRS, resource indicator, SRI, in the downlink control information, determining a spatial relationship of the at least one physical uplink shared channel according to one of:
a predetermined sounding reference signal resource indicator associated with one of the plurality of sounding reference signal resource sets;
a path loss reference signal, PL-RS, configured for one of the plurality of sounding reference signal resource sets;
a transmission configuration indicator TCI state with an identification ID of a physical downlink shared channel PDSCH;
identification of a Physical Uplink Control Channel (PUCCH); and
quasi co-sited QCL assumes or controls the value of resource set CORESET.
46. The user equipment of claim 44, wherein the processor is further configured to:
and determining the spatial relationship of the at least one physical uplink shared channel according to at least one sounding reference signal resource indicator field in the downlink control information.
47. The user equipment of claim 44, wherein the processor is further configured to:
and determining the spatial relationship of the at least one physical uplink shared channel according to at least one demodulation reference signal (DMRS) port indicated by an antenna port field in the downlink control information.
48. The user equipment of claim 28, wherein the processor is further configured to:
in the absence of the sounding reference signal, SRS, resource indicator, SRI, in the downlink control information, determining a spatial relationship of at least one physical uplink shared channel according to one of:
spatial relationship of reference cells or co-scheduling serving cells;
a path loss reference signal PL-RS configured for a set of sounding reference signal resources;
a predetermined sounding reference signal resource indicator associated with the set of sounding reference signal resources;
a transmission configuration indicator TCI state with an identification ID of a physical downlink shared channel PDSCH;
identification of a Physical Uplink Control Channel (PUCCH);
quasi co-sited QCL assumption; and
the identity of the resource set CORESET is controlled.
49. A method for use by a network device to handle multi-cell scheduling, the method comprising:
configuring a first number of a plurality of scheduling cells for downlink control information DCI scheduling; and
transmitting the downlink control information to a user equipment, UE, via a first serving cell for performing a plurality of communications on the plurality of scheduling cells, wherein
The downlink control information includes at least one single downlink control information field, at least one individual downlink control information field, and at least one configurable downlink control information field.
50. The method for handling multi-cell scheduling by a network device according to claim 49, wherein the single downlink control information field corresponds to at least one of the first number of the plurality of scheduling cells.
51. The method for handling multi-cell scheduling by a network device according to claim 50, wherein the single downlink control information field comprises at least one of:
an identifier of a downlink control information format;
a co-scheduling cell indicator;
a bandwidth part indicator of the plurality of scheduling cells supporting dynamic bandwidth part BWP handover;
downlink assignment index;
a transmission power control TPC command of a physical uplink control channel PUCCH;
physical uplink control channel resource indicator;
a physical downlink shared channel requests a PDSCH-to-HARQ timing indicator for hybrid automatic repeat request;
a one-shot hybrid automatic repeat request acknowledgement request;
a beta offset indicator;
a Channel State Information (CSI) request; and
time domain resource allocation TDRA.
52. The method for processing multi-cell scheduling by a network device of claim 49, wherein the individual downlink control information field corresponds to a second number of information blocks, and each information block indicates control information for one of the plurality of scheduling cells.
53. The method for handling multi-cell scheduling for use by a network device according to claim 52, wherein
The second number of information blocks is placed according to an ascending order of serving cell indexes, and the first information block corresponds to a minimum serving cell index; and
wherein the second number is equal to the first number.
54. The method for processing multi-cell scheduling by a network device of claim 52, wherein said control information corresponds to one of:
new data indicator NDI;
redundancy version RV;
modulation coding scheme, MCS; and
the frequency domain resource is assigned FDRA.
55. The method for handling multi-cell scheduling by a network device of claim 49, further comprising:
configuring each of the at least one configurable downlink control information field to correspond to the first number of scheduling cells, if the configurable downlink control information field is of a first type; and
in case the configurable downlink control information field is of a second type, configuring each of the at least one configurable downlink control information field to comprise a plurality of information blocks, wherein each of the information blocks corresponds to the first number.
56. The method for handling multi-cell scheduling by a network device of claim 55, wherein the configurable downlink control information field comprises at least one of:
a rate matching indicator;
zero power ZP channel state information reference signal CSI-RS triggering;
precoding information and the number of layers;
phase tracking reference signal demodulation reference signal PTRS-DMRS correlation;
an antenna port;
transmitting a configuration indicator TCI;
a sounding reference signal SRS request;
initializing a demodulation reference signal sequence;
a sounding reference signal resource indicator SRI; and
physical reference block PRB bundle size indicator.
57. The method for handling multi-cell scheduling by a network device of claim 49, further comprising:
configuring the lengths of the information blocks in the individual downlink control information fields or in the configurable downlink control information fields to be the same, or
The length of the information blocks in the individual or in the configurable downlink control information field is configured according to at least one higher layer signaling.
58. The method for handling multi-cell scheduling for network apparatus according to claim 49, wherein the downlink control information is configured in a user equipment specific search space, USS, and the length of the downlink control information is determined according to at least one higher layer configuration.
59. The method for processing multi-cell scheduling used by a network device of claim 49, wherein the downlink control information is scrambled by a cell radio network temporary identity, C-RNTI, and the length of the downlink control information is not equal to a length of first downlink control information having different formats scrambled by the cell radio network temporary identity.
60. The method for handling multi-cell scheduling by a network device of claim 49, further comprising:
transmitting a sounding reference signal, SRS, resource indicator, SRI, wherein
The sounding reference signal resource indicator is determined by one sounding reference signal resource indicator contained in a first downlink control information field, and the first downlink control information contains the first downlink control information field.
61. The method for handling multi-cell scheduling by a network device according to claim 60, wherein the downlink control information lacks a sounding reference signal resource set indicator.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US63/411,130 | 2022-09-29 | ||
| US18/469,559 US20240114523A1 (en) | 2022-09-29 | 2023-09-19 | Method for handling a multi-cell scheduling and user equipment |
| US18/469,559 | 2023-09-19 |
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| CN117793923A true CN117793923A (en) | 2024-03-29 |
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