WO2021047647A1 - 上行传输方法和装置 - Google Patents
上行传输方法和装置 Download PDFInfo
- Publication number
- WO2021047647A1 WO2021047647A1 PCT/CN2020/114826 CN2020114826W WO2021047647A1 WO 2021047647 A1 WO2021047647 A1 WO 2021047647A1 CN 2020114826 W CN2020114826 W CN 2020114826W WO 2021047647 A1 WO2021047647 A1 WO 2021047647A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- subband
- uplink
- dci
- srs resource
- uplink transmission
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
- H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/713—Spread spectrum techniques using frequency hopping
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT
- H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT the frequencies being arranged in component carriers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0058—Allocation criteria
- H04L5/0064—Rate requirement of the data, e.g. scalable bandwidth, data priority
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
- H04L5/0092—Indication of how the channel is divided
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
- H04L5/0094—Indication of how sub-channels of the path are allocated
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0044—Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
- H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
Definitions
- This application relates to a wireless communication network, for example, to an uplink transmission method and device.
- the uplink transmission rate of the terminal is generally lower than the downlink reception rate due to the limitation of the space size of the terminal, the hardware cost, and the complexity of hardware implementation.
- the terminal improves the rate and coverage of the uplink transmission channel by using technologies such as power control, precoding, and beam.
- technologies such as power control, precoding, and beam.
- broadband precoding is used for uplink transmission, but the channel estimation accuracy of broadband precoding is insufficient, and the performance of improving uplink transmission is limited.
- the present application provides an uplink transmission method and device, which enable the uplink transmission channel to use the precoding of downlink channel information estimation and indicate the precoding information of subband granularity, which improves the accuracy of channel estimation and is beneficial to the enhancement of uplink transmission.
- the embodiment of the present application provides an uplink transmission method, which is applied to a first communication node, and includes:
- the uplink transmission channel is sent according to the scheduling of the downlink control signaling.
- the uplink reference signal includes N SRS resource groups, and the i-th SRS resource group includes M i SRS resources, where each SRS resource group is associated with a downlink reference signal, i, N, M i is an integer greater than or equal to 1, and 1 ⁇ i ⁇ N.
- association relationship between SRS resources and PTRS ports includes any of the following methods:
- All SRS resources are not associated with PTRS ports, and each SRS resource is associated with one PTRS port.
- using downlink channel information to send an uplink reference signal includes:
- the uplink reference signal is generated according to the precoding of each uplink subband of the uplink reference signal and the uplink reference signal is sent.
- the uplink subband division method includes at least one of the following methods:
- the subband division granularity is indicated by at least one of the following methods: high-level signaling, physical layer signaling, the bandwidth of the carrier component where the uplink transmission channel is located, and the frequency domain range of the BWP where the uplink transmission channel is located , The frequency domain range of SRS resources.
- the downlink control signaling includes any of the following manners:
- the DCI of the two joint scheduling uplink transmission channels are the DCI of the two joint scheduling uplink transmission channels.
- a DCI for scheduling an uplink transmission channel includes a subband SRS resource indicator.
- the frequency domain ranges indicated by the DCIs of the two independently scheduled uplink transmission channels do not overlap, and the DCIs of the two independently scheduled uplink transmission channels both include subband SRS resource indications.
- the two DCIs of jointly scheduled uplink transmission channels include a first DCI and a second DCI, and the first DCI and the second DCI jointly schedule the uplink transmission channel.
- the first DCI includes at least one of the following information: carrier indication, BWP indication, frequency domain resource allocation, time domain resource allocation, frequency hopping indication, frequency hopping offset indication, modulation and coding mode, Redundancy version, process number, SRS resource indication, SRS resource group indication, transmission layer number indication, DMRS port indication, DMRS sequence initialization indication, and size indication of the second DCI;
- the second DCI includes at least one of the following information: uplink subband number, multiple subband SRS resource indication, modulation and coding scheme, redundancy version, redundancy version offset, DMRS sequence initialization indication, DMRS sequence initialization offset indication .
- the information bit size of the second DCI is determined by at least one of the following methods: the size indication of the second DCI of the first DCI, the association relationship between SRS resources and PTRS ports, the number of SRS resource groups, The number of SRS resources included in each SRS resource group, the selection of SRS resource groups, the number of SRS resources included in each uplink subband, the frequency hopping indicator of the first DCI, the frequency hopping offset indicator of the first DCI, the first SRS resource indication of a DCI and frequency domain resource allocation of the first DCI.
- the number of SRS resources included in each uplink subband is the number of SRS resources existing in the frequency domain occupied by the corresponding uplink subband; the number of SRS resources included in each uplink subband is the same as the number of SRS resources included in each uplink subband.
- the relationship between the total number of SRS resources includes at least one of the following methods:
- Different SRS resources occupy different frequency domains, and the uplink subband division method is used to ensure that the number of SRS resources included in each uplink subband is the same as the total number of SRS resources;
- the number of included SRS resources is less than the number of uplink subbands of the total number of SRS resources, and the frequency domain range to which the uplink subband belongs cannot be used for scheduling uplink transmission channels;
- the uplink subbands that include the number of SRS resources less than the total number of SRS resources are used for scheduling the uplink transmission channel and there is a corresponding subband SRS resource indication.
- the uplink subband number is determined by at least one of the following information: the division mode of the uplink subband, the frequency hopping indicator of the first DCI, the frequency hopping offset indicator of the first DCI, the first DCI Frequency domain resource allocation.
- the bit width indicated by the SRS resource of each subband is determined by at least one of the following information: the association relationship between the SRS resource and the PTRS port, the number of SRS resource groups, and the SRS resources contained in each SRS resource group The number, the selection of the SRS resource group, the SRS resource indication of the first DCI, and the number of SRS resources included in each uplink subband.
- the relationship between the uplink subband number of the second DCI and multiple subband SRS resource indications includes at least one of the following manners:
- the second DCI includes multiple subband SRS resource indicators, and does not include an uplink subband number;
- the second DCI includes an uplink subband number and multiple subband SRS resource indicators, where one uplink subband number corresponds to one subband SRS resource indicator;
- the second DCI includes an uplink subband number and multiple subband SRS resource indications, where a group of uplink subband numbers corresponds to one subband SRS resource indication.
- the prompt information of the first DCI includes at least one of the following information: the scrambling code of the first DCI, the redundancy version of the first DCI, the SRS resource indication of the first DCI, and the first DCI The SRS resource group indication and the DMRS sequence initialization indication of the first DCI.
- the layer number of the uplink transmission channel is determined by at least one of the following information: the SRS resource indicator of the first DCI, the transmission layer number indicator of the first DCI, the DMRS port indicator of the first DCI, and the second Multiple sub-band SRS resource indications of DCI.
- sending the uplink transmission channel according to the scheduling of the downlink control signaling includes:
- the uplink transmission channel is scheduled according to the first DCI
- the uplink transmission channel is jointly scheduled according to the first DCI and the second DCI.
- the second communication node determines that the second DCI is monitored according to at least one of the following manners:
- the uplink transmission channel adopts the modulation and coding mode indicated by the second DCI
- the uplink transmission channel adopts the redundancy version indicated by the second DCI
- the redundancy version of the uplink transmission channel is determined by the redundancy version indicated by the first DCI and the redundancy version offset indicated by the second DCI;
- the DMRS sequence initialization of the uplink transmission channel adopts the DMRS sequence initialization indication in the second DCI;
- the DMRS sequence initialization of the uplink transmission channel is determined by the DMRS sequence initialization indicated by the first DCI and the DMRS sequence initialization offset indicated by the second DCI.
- the subband SRS resource indicator is used to indicate the precoding of the uplink transmission channel.
- the precoding used by the uplink transmission channel in each uplink subband is determined by the subband SRS resource corresponding to each uplink subband. Instructions are OK.
- the embodiment of the present application provides an uplink transmission method, which is applied to a second communication node, and includes:
- using downlink channel information to send an uplink reference signal includes:
- the uplink reference signal is generated according to the precoding of each uplink subband of the uplink reference signal and the uplink reference signal is sent.
- the uplink subband division method includes at least one of the following methods:
- An embodiment of the present application provides an uplink transmission device, including a processor and a memory, and the processor is configured to run program instructions stored in the memory to execute any possible implementation of the above-mentioned uplink transmission method.
- An embodiment of the present application provides an uplink transmission device, which is set at a first communication node, and includes:
- the reference signal receiving module is configured to receive the downlink reference signal sent by the second communication node, and obtain downlink channel information
- the reference signal sending module is configured to use the downlink channel information to send the uplink reference signal
- a monitoring module configured to monitor the downlink control signaling sent by the second communication node, the downlink control signaling includes a subband SRS resource indication;
- the channel sending module is configured to send the uplink transmission channel according to the scheduling of the downlink control signaling.
- An embodiment of the present application provides an uplink transmission device, which is set at a second communication node, and includes:
- the reference signal sending module is configured to send a downlink reference signal to the first communication node, where the downlink reference signal is used to obtain downlink channel information;
- a reference signal receiving module configured to receive an uplink reference signal sent by the first communication node using downlink channel information
- a signaling sending module configured to send downlink control signaling to the first communication node, where the downlink control signaling includes a subband SRS resource indication;
- the channel receiving module is configured to receive the uplink transmission channel sent by the first communication node according to the scheduling of the downlink control signaling.
- An embodiment of the present application provides an uplink transmission system, where the uplink transmission system includes a first communication node and a second communication node;
- the first communication node includes any kind of uplink transmission device arranged in the first communication node;
- the second communication node includes any kind of uplink transmission device arranged in the second communication node.
- FIG. 1 is a flowchart of an uplink transmission method provided by an embodiment
- Figure 2 is a schematic diagram of SRS resources for uplink reference signals
- Fig. 3 is a schematic diagram of subband division of SRS resources
- Figure 4 is a schematic diagram of the selection of SRS resource groups
- FIG. 5 is a schematic diagram of the frequency domain range of the uplink transmission channel scheduled by the first DCI
- FIG. 6 is a schematic diagram of the frequency domain range of the uplink transmission channel scheduled by the first DCI when there is frequency hopping;
- FIG. 7 is a flowchart of another uplink transmission method provided by an embodiment
- FIG. 8 is a schematic structural diagram of an uplink transmission device provided by an embodiment
- FIG. 9 is a schematic structural diagram of another uplink transmission apparatus according to an embodiment.
- FIG. 10 is a schematic structural diagram of an uplink transmission system provided by an embodiment
- FIG. 11 is a schematic structural diagram of a terminal provided by an embodiment
- Fig. 12 is a schematic structural diagram of a base station provided by an embodiment.
- the estimation of the downlink channel can be used to reciprocate to the uplink transmission, reducing the overhead and increasing the accuracy of precoding.
- the uplink channel and the downlink channel have reciprocity, how to select the subband precoding for the uplink transmission channel is a problem to be solved urgently.
- Fig. 1 is a flowchart of an uplink transmission method provided in an embodiment. As shown in Fig. 1, the method provided in this embodiment includes the following steps.
- Step S1010 Receive a downlink reference signal sent by the second communication node, and obtain downlink channel information.
- the uplink transmission method provided in this embodiment is applied to a first communication node in a wireless communication system, and the first communication node is, for example, User Equipment (UE).
- the UE uses the uplink transmission channel for uplink transmission in the wireless communication system.
- the base station sends downlink data and downlink signaling to the UE through the downlink transmission channel.
- the uplink channel and the downlink channel between the base station and the UE are reciprocal, that is, the uplink channel and the downlink channel between the base station and the UE experience the same spatial environment, the UE can use the downlink channel obtained by the base station sending the downlink reference signal The information is sent to the uplink transmission channel.
- the traditional uplink transmission channel uses wideband precoding, but the precision of the wideband precoding is insufficient, and the performance of improving the uplink transmission is limited.
- this embodiment considers applying the precoding information calculated by using the downlink channel information to the uplink transmission channel.
- the UE as the first communication node needs to receive the downlink reference signal sent by the base station as the second communication node, and obtain downlink channel information from the downlink reference signal.
- Step S1020 Use the downlink channel information to send the uplink reference signal.
- the first communication node After acquiring the downlink channel information, the first communication node calculates the precoding information of the uplink transmission channel based on the downlink channel information, and buffers the precoding information.
- the precoding is selected from the buffered precoding information to generate the uplink reference signal, and the precoding selection information is buffered.
- Using the downlink channel information to send the uplink reference signal includes: determining the precoding of each uplink subband of the uplink reference signal according to the downlink channel information; generating the uplink reference signal according to the precoding of each uplink subband of the uplink reference signal and sending the uplink reference signal.
- the uplink reference signal includes N Sounding Reference Signal (SRS) resource groups, and N is an integer greater than or equal to 1.
- SRS Sounding Reference Signal
- the i-th SRS resource groups comprises one SRS resource M i, M i is an integer greater than or equal to 1.
- SRS resources from different SRS resource groups can be sent at the same time.
- SRS resources from different SRS resource groups may have the same time domain behavior, such as periodic, semi-continuous or aperiodic transmission.
- Each SRS resource group is associated with a downlink reference signal, and the downlink reference signal is used to obtain downlink channel information.
- the first communication node uses the downlink channel information to send the uplink reference signal, which refers to determining the precoding of each uplink subband of the uplink reference signal according to the downlink channel information, and then generating the uplink reference signal according to the precoding of each uplink subband of the uplink reference signal And send the uplink reference signal.
- FIG. 2 is a schematic SRS resources for the uplink reference signal, the presence of the i-th and i + 1-th SRS resource groups, each group respectively comprising SRS resource M i and M i + 1 th SRS resource and each The frequency domain range occupied by SRS resources is shown in the figure.
- w (k, i, j) represent the precoding of the jth SRS resource of the ith SRS resource group in the kth uplink subband.
- w (k, i, j) is calculated by the UE according to the downlink channel information obtained by the downlink reference signal associated with the i-th SRS resource group.
- the association relationship between SRS resources and Phase Tracking Reference Signal (PTRS) ports takes at least one of the following methods: all SRS resources are not associated with a PTRS port, and each SRS resource is associated with a PTRS port. Among them, PTRS is used to track phase noise.
- Step S1030 Monitor the downlink control signaling sent by the second communication node, where the downlink control signaling includes a subband SRS resource indication.
- the second communication node After the first communication node sends the uplink reference signal to the second communication node, the second communication node sends downlink control signaling to the first communication node.
- the downlink control signaling is used to schedule the uplink transmission channel of the first communication node, and the downlink control signal
- the command includes the sub-band SRS resource indication.
- the subband SRS resource indicator is used to indicate the subband precoding of the uplink transmission channel.
- the precoding used by the uplink transmission channel in a certain uplink subband is determined by the subband SRS resource indicator corresponding to the uplink subband.
- BWP Bandwidth Part
- the subband division granularity is indicated by one of the following methods: high-level signaling, physical layer signaling, the bandwidth of the carrier component where the uplink transmission channel is located, the frequency domain range of the BWP where the uplink transmission channel is located, and the frequency domain range of the SRS resource.
- the high-level signaling is, for example, Radio Resource Control (Remote Resource Control, RRC) signaling, or Media Access Control Control Element (MAC CE) signaling
- the physical layer signaling is, for example, Downlink Control Information (Downlink Control Element, MAC CE) signaling. Control Information, DCI).
- Figure 3 is a schematic diagram of the subband division of SRS resources.
- the uplink subband can be divided in one of the following ways:
- the SRS resource with the largest bandwidth and the subband division granularity (1) According to all SRS resources, the SRS resource with the largest bandwidth and the subband division granularity.
- the SRS resource with the smallest bandwidth and the subband division granularity According to all SRS resources, the SRS resource with the smallest bandwidth and the subband division granularity.
- the manner in which the downlink control signaling schedules the uplink transmission channel includes any of the following methods:
- the two jointly schedule the DCI of the uplink transmission channel.
- Step S1040 Send the uplink transmission channel according to the scheduling of the downlink control signaling.
- the first communication node After the first communication node monitors the downlink control signaling, it can send the uplink transmission channel according to the scheduling of the downlink control signaling. Since the downlink control signaling includes the subband SRS resource indicator, the first communication node can determine the precoding of the uplink transmission channel to be transmitted according to the subband SRS resource indicator in the downlink control signaling, and send the uplink transmission channel.
- the uplink transmission method provided in this embodiment is applied to the first communication node. After receiving the downlink reference signal sent by the second communication node, the downlink channel information is obtained, and then the downlink channel information is used to send the uplink reference signal.
- the downlink control signaling includes the subband SRS resource indicator, and the uplink transmission channel is sent according to the scheduling of the downlink control signaling, so that the uplink transmission channel can be used when there is reciprocity between the uplink transmission channel and the downlink transmission channel.
- the downlink channel information calculates the precoding information, which improves the accuracy of channel estimation, which is conducive to the enhancement of uplink transmission.
- the downlink control signaling scheduling uplink transmission channel includes a DCI for scheduling an uplink transmission channel, and a DCI for scheduling the uplink transmission channel includes a subband SRS resource indicator.
- the downlink control signaling includes at least one of the following information: carrier indication, BWP indication, frequency domain resource allocation, time domain resource allocation, frequency hopping indication, frequency hopping offset indication, modulation and coding method, redundancy version , Process number, multiple subband SRS resource indicator, broadband SRS resource indicator, transmission layer number indicator, SRS resource group indicator, demodulation reference signal (DeModulation Reference Signal, DMRS) port indicator, DMRS sequence initialization indicator.
- the multiple subband SRS resource indications are used to indicate the precoding of the uplink transmission channel.
- the precoding used by the uplink transmission channel in a certain uplink subband is determined by the subband SRS resource indication corresponding to the uplink subband.
- the method for implementing the downlink control signaling including one DCI may be the same as the method for implementing the downlink control signaling including the DCI of two jointly scheduled uplink transmission channels.
- the downlink control signaling scheduling uplink transmission channel includes two DCIs for independently scheduling uplink transmission channels, the frequency domain ranges indicated by the DCIs of the two independently scheduling uplink transmission channels do not overlap, and the two independently scheduling uplink transmission channels All DCIs include sub-band SRS resource indications.
- each downlink control signaling includes at least one of the following information: carrier indication, BWP indication, frequency domain resource allocation, time domain resource allocation, frequency hopping indication, frequency hopping offset indication, modulation and coding method, redundancy Remaining version, process number, multiple subband SRS resource indicator, broadband SRS resource indicator, transmission layer number indicator, SRS resource group indicator, DMRS port indicator, DMRS sequence initialization indicator.
- the multiple subband SRS resource indicators are used to indicate the precoding of the uplink transmission channel.
- the precoding used by the uplink transmission channel in a certain uplink subband is determined by the subband SRS resource indicator corresponding to the uplink subband.
- the implementation method of the downlink control signaling including the DCI of two independently scheduled uplink transmission channels may be the same as the implementation method of the downlink control signaling including the DCI of two jointly scheduled uplink transmission channels.
- the downlink control signaling scheduling uplink transmission channel includes two DCIs for jointly scheduling the uplink transmission channel.
- the DCI of the two jointly scheduled uplink transmission channels includes the first DCI and the second DCI, and the first DCI and the second DCI jointly schedule the uplink transmission channels.
- the first DCI includes at least one of the following information: carrier indication, BWP indication, frequency domain resource allocation, time domain resource allocation, frequency hopping indication, frequency hopping offset indication, modulation and coding method, redundancy version, process number, SRS resource Indications, SRS resource group indication, transmission layer number indication, DMRS port indication, DMRS sequence initialization indication, and size indication of the second DCI.
- the second DCI includes at least one of the following information: uplink subband number, multiple subband SRS resource indication, modulation and coding scheme, redundancy version, redundancy version offset, DMRS sequence initialization indication, DMRS sequence initialization offset indication .
- DMRS is used for demodulation of uplink transmission channel.
- the first communication node determines whether the second DCI exists in at least one of the following ways: RRC signaling configured by the base station, MAC CE signaling configured by the base station, and prompt information of the first DCI.
- the prompt information of the first DCI includes at least one of the following methods: scrambling code of the first DCI, redundancy version of the first DCI, SRS resource indication of the first DCI, SRS resource group indication of the first DCI, and DMRS sequence initialization indication.
- the scrambling code of the first DCI such as the Radio Network Temporary Identifier (RNTI) of the first DCI, refers to the use of specific cyclic redundancy check (CRC) check bits of the first DCI
- the RNTI performs scrambling to notify the terminal whether there is a second DCI.
- the DMRS sequence initialization indication of the first DCI refers to that the base station informs the terminal whether there is a second DCI through the DMRS sequence initialization indication.
- the information bit size of the second DCI is determined by at least one of the following methods: the size indication of the second DCI in the first DCI, the association relationship between SRS resources and PTRS ports, the number of SRS resource groups, and the SRS contained in each SRS resource group The number of resources, the selection of SRS resource groups, the number of SRS resources included in each uplink subband, the frequency hopping indicator of the first DCI, the frequency hopping offset indicator of the first DCI, the SRS resource indicator of the first DCI, the first A frequency domain resource allocation of DCI.
- the bit width indicated by the SRS resource of each subband is determined by at least one of the following information: the association relationship between the SRS resource and the PTRS port, the number of SRS resource groups, the number of SRS resources contained in each SRS resource group, and the SRS resource group The selection of, the SRS resource indication of the first DCI, and the number of SRS resources contained in each uplink subband.
- the number of layers of the uplink transmission channel is determined by at least one of the following information: SRS resource indication of the first DCI, transmission layer number indication of the first DCI, DMRS port indication of the first DCI, and multiple subband SRS resource indications of the second DCI.
- the uplink subband number is determined by at least one of the following information: the division mode of the uplink subband, the frequency hopping indicator of the first DCI, the frequency hopping offset indicator of the first DCI, and the frequency domain resource allocation of the first DCI.
- the relationship between the uplink subband number of the second DCI and the multiple subband SRS resource indications can be in at least one of the following ways:
- the second DCI does not include the uplink subband number, but only includes multiple subband SRS resource indications;
- the second DCI includes an uplink subband number and multiple subband SRS resource indicators, where one uplink subband number corresponds to one subband SRS resource indicator;
- the second DCI includes an uplink subband number and multiple subband SRS resource indications, where a group of uplink subband numbers corresponds to one subband SRS resource indication.
- the subband SRS resource indicator is used to indicate the precoding of the uplink transmission channel.
- the precoding used by the uplink transmission channel in a certain uplink subband is determined by the subband SRS resource indicator corresponding to the uplink subband.
- the number of SRS resources included in each uplink subband refers to the number of SRS resources in the frequency domain occupied by the uplink subband, and is related to the selection of the SRS resource group.
- the relationship between the number of SRS resources included in each uplink subband and the total number of SRS resources will affect the SRS resource indication of the first DCI and the subband SRS resource indication of the second DCI.
- the total number of SRS resources is determined by at least one of the following methods: the total number of SRS resources included in all SRS resource groups; related to the selection of the SRS resource group, indicating the total number of SRS resources included in the selected SRS resource group number.
- Figure 4 is a schematic diagram of the selection of SRS resource groups.
- the first SRS resource group contains 3 SRS resources
- the second SRS resource group contains 4 SRS resources. If the first SRS resource group is selected, the total number of SRS resources is 3, and the number of SRS resources contained in the k+1 uplink subband is 2; if the second SRS resource group is selected, the total SRS resources are The number of SRS resources is 4, and the number of SRS resources contained in the k+1th uplink subband is 3. If the first SRS resource group and the second SRS resource group are selected, the total number of SRS resources is 7. The number of SRS resources included in the +1 uplink subband is 5.
- the number of SRS resources included in each uplink subband is the number of SRS resources existing in the frequency domain occupied by the corresponding uplink subband.
- the relationship between the number of SRS resources included in each uplink subband and the total number of SRS resources can be Use one of the following restrictions:
- the number of SRS resources contained in each uplink subband is the same as the total number of SRS resources; the frequency domain occupied by different SRS resources may be different, and the uplink subbands are divided in a way to ensure that each The number of SRS resources included in each uplink subband is the same as the total number of SRS resources; the number of SRS resources included is less than the number of uplink subbands of the total number of SRS resources, and cannot be used to schedule the uplink transmission channel; the number of SRS resources included is less than The uplink subband with the total number of SRS resources, and the uplink subband does not have a corresponding subband SRS resource indicator; the uplink subband with the number of SRS resources included is less than the total number of SRS resources, and the uplink subband can be used for scheduling uplink Transmission channel and there is a corresponding subband SRS resource indication.
- the uplink transmission channel uses the information indicated by the first DCI; there is a second DCI and the first communication node detects the second DCI , The uplink transmission channel uses the information indicated by two DCIs jointly.
- the first communication node confirms that both DCIs are successfully monitored by the first communication node by at least one of the following methods:
- the uplink transmission channel adopts the modulation and coding mode indicated by the second DCI; the uplink transmission channel adopts the redundancy version indicated by the second DCI; the redundancy version of the uplink transmission channel is the redundancy version indicated by the first DCI and the redundancy indicated by the second DCI
- the version offset is determined together; the DMRS sequence initialization of the uplink transmission channel uses the DMRS sequence initialization indication in the second DCI; the DMRS sequence initialization of the uplink transmission channel is initialized by the DMRS sequence initialization indicated by the first DCI and the DMRS sequence initialization offset indicated by the second DCI
- the amount of movement is jointly determined.
- the downlink control signaling includes the DCI of two jointly scheduled uplink transmission channels, and includes the following specific implementation manner.
- the DCI of the two jointly scheduled uplink transmission channels under different conditions will be described in detail below with specific embodiments.
- the resource group includes M SRS resources, and all SRS resources are not associated with PTRS ports.
- M 4
- the first DCI does not indicate frequency hopping, and part of the frequency domain range of the uplink transmission channel scheduled by it, as shown in the black part of FIG. 5, which is a schematic diagram of the frequency domain range of the uplink transmission channel scheduled by the first DCI.
- the granularity of one uplink subband is 4 resource blocks (Resource Block, RB).
- the SRS resource indication of the first DCI may use one of the following methods: bitmap and joint coding.
- the SRS resource indicator of the first DCI is 1010
- the number of layers of the uplink transmission channel is determined by the SRS resource indicator of the first DCI, which means that the number of layers of the uplink transmission channel is 2 layers
- the SRS resource is selected The first SRS resource and the third SRS resource of the group.
- one of the following methods can be adopted:
- the second DCI does not include the uplink subband number, but only includes multiple subband SRS resource indications.
- a certain uplink subband contains at least one RB and is scheduled for uplink transmission, and the uplink subband corresponds to a subband SRS resource indicator.
- the subband SRS resource indication may adopt one of the following methods: bitmap, joint coding.
- bitmap A specific example of using a bitmap is that the subband SRS resource indications of the lth uplink subband and the l+1th uplink subband are 0110 and 1001, respectively.
- the above subband SRS resource indication indicates that in the first uplink subband of the first layer of the uplink transmission channel, the precoding used by the scheduled frequency domain resources is based on the precoding used in the corresponding uplink subband when the second SRS resource is transmitted. ; In the first uplink subband of the second layer of the uplink transmission channel, the precoding used for the scheduled frequency domain resources is based on the precoding used in the corresponding uplink subband when the third SRS resource is transmitted; the first layer of the uplink transmission channel In the 1+1th uplink subband of the uplink transmission channel, the precoding used by the scheduled frequency domain resources is based on the precoding used in the corresponding uplink subband when the first SRS resource is transmitted; the first 1+1 of the uplink transmission channel layer 2 Within each uplink subband, the precoding used by the scheduled frequency domain resources is based on the precoding used in the corresponding uplink subband when the fourth SRS resource is transmitted.
- Another implementation manner is that at least one RB is used for part of the uplink subband of the uplink transmission channel, which can correspond to the SRS resource indicator of the same subband, thereby reducing the overhead of the second DCI.
- a specific example is, as shown in Figure 5, the S-1 uplink sub with 3 RBs are scheduled, the S uplink sub with 1 RB is scheduled, and 4 RBs are continuous.
- the overhead of DCI, the Sth uplink subband and the S-1th uplink subband correspond to the same subband SRS resource indicator.
- At least one RB is used for some uplink subbands of the uplink transmission channel, and may not correspond to any subband SRS resource indication. At this time, these uplink subbands use the SRS resource indication in the first DCI by default, reducing the second DCI. s expenses.
- the second DCI includes an uplink subband number and multiple subband SRS resource indications, where one uplink subband number corresponds to one subband SRS resource indication.
- the uplink subband number is determined by the division method of the uplink subband and the frequency domain range of the uplink transmission channel. A specific example is, as shown in Figure 5, the 1+1th uplink subband and the S-1th uplink subband The band containing at least one RB is indicated for the uplink transmission channel. Renumber these two uplink subbands as p and q respectively.
- the subband SRS resource indication may adopt one of the following methods: bitmap and joint coding. A specific example of using a bitmap is that the subband SRS resource indicators numbered p and q are 0110 and 1001, respectively.
- the above subband SRS resource indication indicates that in the subband numbered p of the first layer of the uplink transmission channel, the precoding used for the scheduled frequency domain resources is based on the precoding used in the corresponding uplink subband when the second SRS resource is transmitted ;
- the precoding used by the scheduled frequency domain resources is based on the precoding used in the corresponding uplink subband when the third SRS resource is transmitted;
- the first layer number of the uplink transmission channel In the subband of q the precoding used by the scheduled frequency domain resources is based on the precoding used in the corresponding uplink subband when the first SRS resource is transmitted; in the subband numbered q on the second layer of the uplink transmission channel, it is
- the precoding used for the scheduled frequency domain resources is based on the precoding used in the corresponding uplink subband when the fourth SRS resource is transmitted.
- Another implementation manner is that at least one RB is used for part of the uplink subbands of the uplink transmission channel, which can correspond to the same uplink subband number, thereby reducing the overhead of the second DCI.
- a specific example is, as shown in Figure 5, the S-1 uplink sub with 3 RBs are scheduled, the S uplink sub with 1 RB is scheduled, and 4 RBs are continuous.
- the Sth uplink subband and the S-1th uplink subband correspond to the same uplink subband number.
- the SRS resource indicator in the first DCI is used by default to reduce the overhead of the second DCI. .
- the second DCI includes an uplink subband number and multiple subband SRS resource indications, where one group of uplink subband numbers corresponds to one subband SRS resource indication.
- the uplink subband number is determined by the uplink subband division method and the frequency domain range of the uplink transmission channel. As shown in FIG. 5, the 1+1th uplink subband and the S-1th uplink subband contain at least one RB which is indicated for the uplink transmission channel. Renumber these two uplink subbands as p and q respectively.
- the subband SRS resource indication may adopt one of the following methods: bitmap and joint coding. A group of uplink subband numbers corresponds to a subband SRS resource indicator.
- the uplink subbands numbered p and q correspond to the same subband SRS resource indicator: 0101.
- the foregoing subband SRS resource indication indicates that in the subband with the uplink transmission channel number p, the precoding used by the frequency domain resources scheduled at the first layer is based on the precoding used in the corresponding uplink subband when the second SRS resource is transmitted; In the subband with the uplink transmission channel number p, the precoding used by the frequency domain resources scheduled at the second layer is based on the precoding used in the corresponding uplink subband when the fourth SRS resource is transmitted; the subband with the uplink transmission channel number q In-band, the precoding used for the frequency domain resources scheduled in the first layer is based on the precoding used in the corresponding uplink subband when the second SRS resource is transmitted; in the subband with the uplink transmission channel number q, the second layer is scheduled The precoding used for the frequency domain resources of is based on the precoding used in the corresponding uplink subband when the fourth SRS resource
- At least one RB is used for part of the uplink subbands of the uplink transmission channel, and multiple uplink subbands may correspond to the same uplink subband number, thereby reducing the overhead of the second DCI.
- a specific example is, as shown in Figure 5, the S-1 uplink sub with 3 RBs are scheduled, the S uplink sub with 1 RB is scheduled, and 4 RBs are continuous.
- the Sth uplink subband and the S-1th uplink subband correspond to the same uplink subband number.
- the SRS resource indicator in the first DCI is used by default to reduce the overhead of the second DCI. .
- an example of determining the number of uplink transmission channel layers Assume that the DMRS port indication of the first DCI selects 3 DMRS ports, and the SRS resource indication of the first DCI is 1000. If there is no second DCI or the second DCI is not monitored, the number of layers of the uplink transmission channel is determined by the SRS resource indication of the first DCI, which is layer 1, and the first SRS resource of the SRS resource group is selected.
- the DMRS port used by the uplink transmission channel is one of the DMRS ports indicated by the DMRS port in the first DCI.
- the number of layers of the uplink transmission channel can be determined by one of the following methods: the number of DMRS ports indicated by the first DMRS port; and the multiple subband SRS resource indications of the second DCI.
- the number of DMRS ports indicated by the first DMRS port determines the number of layers of the uplink transmission channel. In the above example, the number of transmission layers is 3, and each subband SRS resource indicator of the second DCI must indicate 3 SRS resources, and the uplink transmission channel is used
- the DMRS ports are all DMRS ports indicated by the DMRS port in the first DCI.
- the multiple subband SRS resource indicators of the second DCI determine the number of layers of the uplink transmission channel.
- each subband SRS resource indicator of the second DCI indicates 2 SRS resources, which means that the number of layers of the uplink transmission channel is 2, and the uplink transmission
- the DMRS ports of each layer of the channel respectively correspond to two of the DMRS ports indicated by the DMRS port in the first DCI.
- each SRS resource is associated with one PTRS port.
- the PTRS ports associated with different uplink subbands on the same layer of the uplink transmission channel must be the same.
- the selection of the PTRS port of the uplink transmission channel can be determined by one of the following methods: the SRS resource indicator of the first DCI, the SRS resource indicator of the first DCI and the second subband SRS resource indicator are jointly determined, and the subband SRS resource of the second DCI Instructions are OK.
- the selection of the uplink transmission PTRS port is determined by the SRS resource indication of the first DCI. For example: Suppose there are 4 SRS resources in an SRS resource group, the first and second SRS resources are associated with PTRS port 0, the third and fourth SRS resources are associated with PTRS port 1, and the number of uplink transmission channels is determined by the first level of DCI
- the SRS resource indication is OK. Examples are as follows:
- each subband SRS resource indication can only select one from the first and second SRS resources. At this time, the bit width indicated by each subband SRS resource in the second DCI only needs 1 bit.
- the SRS resource indication of the first DCI is 0011
- the first layer and the second layer of the uplink transmission channel are associated with the same PTRS port 1. Because the PTRS ports associated with different uplink subbands of the same layer of the uplink transmission channel must be the same, there is no second DCI at this time.
- the SRS resource indication of the first DCI is 0110
- the first layer and the second layer of the uplink transmission channel are respectively associated with PTRS port 0 and PTRS port 1.
- the subband SRS resource indication is used for uplink transmission.
- the subband SRS resource indication for the first layer can only be selected from the first SRS resource and the second SRS resource; it is used for uplink transmission.
- the layer 2 subband SRS resource indication can only select one from the third SRS resource and the fourth SRS resource.
- the bit width indicated by each subband SRS resource in the second DCI only needs to be 2 bits.
- the SRS resource indication of the first DCI is 1110
- the first layer and the second layer of the uplink transmission channel are associated with the same PTRS port 0, and the third layer is associated with the PTRS port 1.
- the bit width indicated by each subband SRS resource in the second DCI only needs 1 bit.
- the selection of the PTRS port for uplink transmission is determined by the SRS resource indication in the first DCI and the subband SRS resource indication in the second DCI.
- a specific example is: suppose there are 4 SRS resources in an SRS resource group, the first and second One SRS resource is associated with PTRS port 0, the third and fourth SRS resources are associated with PTRS port 1, and the number of layers of the uplink transmission channel is determined by the SRS resource indication of the first DCI. Examples are as follows:
- each subband SRS resource indication of the second DCI can only indicate one SRS resource.
- one of the following methods can be selected: all subband SRS resource indications can only be selected from the first and second SRS resources, and all subband SRS resource indications can only be selected from the third and fourth SRS resources.
- the SRS resource indicator of the subband with the lowest uplink subband number is 0100, which means that the layer 1 of the uplink transmission channel is associated with PTRS port 0, and the SRS resource indicator of all other subbands can only be from the 1st and 2nd.
- each subband SRS resource indication of the second DCI can only indicate 2 SRS resources.
- 2 SRS resources can be arbitrarily selected from the 4 SRS resources, but it needs to satisfy that the PTRS ports associated with different uplink subbands on the same layer of the uplink transmission channel must be the same.
- each subband SRS resource indication of the second DCI can only indicate 3 SRS resources.
- Each subband SRS resource indication can select 3 SRS resources arbitrarily from the 4 SRS resources, but it needs to satisfy that the PTRS ports associated with different uplink subbands on the same layer of the uplink transmission channel must be the same.
- the SRS resource indicator of the first DCI is 1111, it indicates that the number of layers of the uplink transmission channel is 4. At this time, there is no second DCI.
- N SRS resource groups wherein the i-th group comprising SRS resource M i th SRS resources.
- the subband SRS resource indication of the second DCI may adopt one of the following restrictions:
- the number of SRS resources selected in the same resource group for multiple subband SRS resource indications must be the same; the number of SRS resources selected for multiple subband SRS resource indications in the same resource group can be different.
- the selection of SRS resource group can be determined by one of the following methods:
- the SRS resource indication of the first DCI implicitly informs the selection of the SRS resource group.
- One of the following situations can be adopted:
- the bit width indicated by the SRS resource of the first DCI is Among them, L max represents the maximum number of layers that the terminal can support or the maximum number of transmission layers that the base station allows the terminal. Assuming that the first DCI indicates RI SRS resources, the bit width indicated by one subband SRS resource of the second DCI is one of the following methods:
- bit width indicated by the SRS resource of the first DCI is one of the following methods:
- L max represents the maximum number of layers that the terminal can support or the maximum number of transmission layers that the base station allows the terminal.
- SRS resource groups can be selected. It is assumed that P (P ⁇ N) SRS resource groups are selected, which correspond to the Q 1 , Q 2 , K, and Q Pth SRS resource groups respectively.
- the bit width indicated by the SRS resource of the first DCI is one of the following methods:
- L max represents the maximum number of layers that the terminal can support or the maximum number of transmission layers that the base station allows the terminal.
- the first DCI implicitly informs the selection of the SRS resource group through the SRS resource indication, which refers to determining whether the SRS resource group is selected according to whether the SRS resource indication of the first DCI indicates at least one SRS resource in a certain SRS resource group .
- the bit width indicated by the SRS resource of the first DCI may be one of the following methods:
- L max represents the maximum number of layers that the terminal can support or the maximum number of transmission layers that the base station allows the terminal.
- the first DCI indicates a total of RI SRS resources
- the second DCI indicates one subband SRS resource
- the bit width is one of the following methods:
- N SRS resource groups there are N SRS resource groups, and the SRS resources are associated with PTRS ports.
- the association relationship between the SRS resource and the PTRS port will affect the SRS resource indication for each subband of the second DCI.
- the subband SRS resource indication of the second DCI has the following limitation: the PTRS ports associated with different uplink subbands on the same layer of the uplink transmission channel must be the same. There are two situations in the association relationship between SRS resources and PTRS ports in a resource group:
- Different SRS resources of an SRS resource group may be associated with different PTRS ports
- All SRS resources of an SRS resource group can only be associated with the same PTRS port.
- the sub-band SRS resource indication of the second DCI may use one of the following methods to indicate the selection of SRS resources in different SRS resource groups:
- Multiple subband SRS resources indicate that the number of SRS resources selected in the same resource group must be the same;
- the multiple subband SRS resource indications can be different in the number of SRS resources selected in the same resource group.
- Different SRS resources of one SRS resource group may be associated with different PTRS ports, and multiple subband SRS resources indicate that the number of SRS resources selected in the same resource group must be the same.
- a specific example is to assume that there are two SRS resource groups, and the PTRS port selection of the uplink transmission channel and the number of layers of the uplink transmission channel are determined by the SRS resource indication of the first DCI.
- the PTRS ports associated with different uplink subbands on the same layer of the uplink transmission channel must be the same.
- Each SRS resource group contains 4 SRS resources.
- the first and second SRS resources of the first SRS resource group are associated with PTRS port 0; the third and fourth SRS resources of the first SRS resource group are associated with PTRS port 1; the first and second SRS resources of the second SRS resource group are associated with PTRS port 0 SRS resources are associated with PTRS port 2; the third and fourth SRS resources of the second SRS resource group are associated with PTRS port 3.
- the SRS resource indication of the first DCI and the subband SRS resource indication of the second DCI for example:
- the SRS resource indication of the first DCI is: 10000001, indicating that the number of layers of the uplink transmission channel is 2, the first layer of uplink transmission is associated with PTRS port 0, and the second layer of uplink transmission is associated with PTRS port 3. Because the PTRS ports associated with different uplink subbands on the same layer of the uplink transmission channel must be the same. Therefore, the subband SRS resource indication of the first layer can only be selected from the first and second SRS resources of the first SRS resource group; the subband SRS resource indication of the second layer can only be selected from the second SRS resource group. Select one of the 3rd and 4th SRS resources in the resource group. In this case, the bit width indicated by each subband SRS resource only needs 2 bits.
- the SRS resource indication of the first DCI is: 11001001, indicating that the number of layers of the uplink transmission channel is 4, the first and second layers of uplink transmission are associated with PTRS port 0, the third layer of uplink transmission is associated with PTRS port 2, and the fourth layer of uplink transmission Associated with PTRS port 3. Because the PTRS ports associated with different uplink subbands on the same layer of the uplink transmission channel must be the same. Therefore, the subband SRS no longer includes the selection of the first SRS resource group; the subband SRS resource indicator of the third layer can be selected from the first and second SRS resources of the second SRS resource group; the fourth layer The sub-band SRS resource indication of SRS can be selected from the third and fourth SRS resources of the second SRS resource group. In this case, the bit width indicated by each subband SRS resource only needs 2 bits.
- the SRS resource indication of the first DCI is: 11111111, which means that the number of layers of the uplink transmission channel is 8. If all SRS resources are selected, there is no second DCI.
- the SRS resource indication of the first DCI is: 11000000/00110000, which means that the number of layers of the uplink transmission channel is 2, and the second SRS resource group is not selected. Because the PTRS ports associated with different uplink subbands on the same layer of the uplink transmission channel must be the same. At this time, there is no second DCI.
- the SRS resource indication of the first DCI is: 00001100/00000011, which means that the number of layers of the uplink transmission channel is 2, and the first SRS resource group is not selected. Because the PTRS ports associated with different uplink subbands on the same layer of the uplink transmission channel must be the same. At this time, there is no second DCI.
- the SRS resource indication of the first DCI is: 11100000, which means that the number of layers of the uplink transmission channel is 3, and the second SRS resource group is not selected. Because the PTRS ports associated with different uplink subbands on the same layer of the uplink transmission channel must be the same. For the subband SRS resource indication of the third layer, only one of the third and fourth SRS resources of the first SRS resource group can be selected. At this time, only 1 bit is required for each subband SRS resource indicator.
- the SRS resource indication of the first DCI is: 11110000/11001100/11000011/00111100/00110011/00001111, indicating that the number of layers of the uplink transmission channel is 4, because each subband SRS resource indication of the second DCI corresponds to the uplink transmission channel If the SRS resource indications of the same layer are in the same SRS resource group, they must be associated with the same PTRS port. At this time, there is no second DCI.
- Different SRS resources of an SRS resource group can only be associated with the same PTRS port, and multiple subband SRS resource indications must be the same in the number of SRS resources selected in the same resource group.
- a specific example is to assume that there are two SRS resource groups, and the PTRS port selection of the uplink transmission channel and the number of layers of the uplink transmission channel are determined by the SRS resource indication of the first DCI.
- Each SRS resource group contains 4 SRS resources.
- the PTRS ports associated with different uplink subbands on the same layer of the uplink transmission channel must be the same. All SRS resources of the first SRS resource group are associated with PTRS port 0; all SRS resources of the second SRS resource group are associated with PTRS port 1.
- the SRS resource indication of the first DCI and the subband SRS resource indication of the second DCI for example:
- the SRS resource indication of the first DCI is: 10000001, indicating that the number of layers of the uplink transmission channel is 2, the first layer of uplink transmission is associated with PTRS port 0, and the second layer of uplink transmission is associated with PTRS port 1.
- the subband SRS resource indicator of the first layer only one can be selected from the first SRS resource group; for the subband SRS resource indicator of the second layer, only one can be selected from the second SRS resource group.
- the SRS resource indication of the first DCI is: 11001001, indicating that the number of layers of the uplink transmission channel is 4, the first and second layers of uplink transmission are associated with PTRS port 0, and the third and fourth layers of uplink transmission are associated with PTRS port 1.
- the subband SRS resource indications of the first and second layers only 2 can be selected from the first SRS resource group; for the subband SRS resource indications of the 3rd and 4th layers, only 2 can be selected from the second SRS resource group A.
- the SRS resource indication of the first DCI is: 11111111, which means that the number of layers of the uplink transmission channel is 8. If all SRS resources are selected, there is no second DCI.
- the SRS resource indication of the first DCI is: 11110000/00001111, which indicates that the number of layers of the uplink transmission channel is 4. There is no second DCI at this time.
- Different SRS resources of an SRS resource group can only be associated with the same PTRS port, and multiple subband SRS resource indications can be different in the number of SRS resources selected in the same resource group.
- a specific example is to assume that there are two SRS resource groups, and the PTRS port selection of the uplink transmission channel is determined by the SRS resource indicator in the first DCI and the SRS resource indicator in the second subband.
- Each SRS resource group contains 4 SRS resources. All SRS resources of the first SRS resource group are associated with PTRS port 0; all SRS resources of the second SRS resource group are associated with PTRS port 1.
- the SRS resource indication of the first DCI and the subband SRS resource indication of the second DCI for example:
- the SRS resource indication of the first DCI is: 10000001, which means that the number of layers of the uplink transmission channel is 2.
- 2 SRS resources can be arbitrarily selected from the 8 SRS resources.
- the PTRS associated with line transmission depends on the number of transmission layers and the subband SRS resource indication.
- the SRS resource indication of the first DCI is: 11001001, which indicates that the number of layers of the uplink transmission channel is 4.
- 4 SRS resources can be arbitrarily selected from the 8 SRS resources.
- the PTRS associated with line transmission depends on the number of transmission layers and subband SRS resource indication selection.
- N SRS resource groups wherein the i-th group comprising SRS resource M i th SRS resources, and the first indication DCI hopping and frequency hopping offset.
- Figure 6 is a schematic diagram of the frequency domain range of the uplink transmission channel scheduled by the first DCI in the presence of frequency hopping.
- the frequency domain range actually occupied by the uplink transmission channel is determined by the frequency hopping indication of the first DCI and the first DCI.
- the frequency hopping offset indicator of a DCI and the frequency domain resource allocation of the first DCI are jointly determined.
- the uplink subband number of the second DCI and multiple subband SRS resource indications should be based on the frequency domain range actually occupied by the uplink transmission channel. For other implementation methods, the same implementation method can be used if there is no conflict with other implementation manners.
- FIG. 7 is a flowchart of another uplink transmission method provided in an embodiment. As shown in FIG. 7, the method provided in this embodiment includes the following steps.
- Step S7010 Send a downlink reference signal to the first communication node, where the downlink reference signal is used to obtain downlink channel information.
- the uplink transmission method provided in this embodiment is applied to a second communication node in a wireless communication system, and the second communication node is, for example, a base station.
- the base station uses the downlink transmission channel for downlink transmission in the wireless communication system, and schedules the second communication node to send the uplink transmission channel through downlink control signaling.
- the base station sends downlink data and downlink signaling to the UE through the downlink transmission channel.
- the uplink channel and the downlink channel between the base station and the UE are reciprocal, that is, the uplink channel and the downlink channel between the base station and the UE experience the same spatial environment, the UE can use the downlink channel obtained by the base station sending the downlink reference signal The information is sent to the uplink transmission channel.
- the traditional uplink transmission channel uses wideband precoding, but the precision of the wideband precoding is insufficient, and the performance of improving the uplink transmission is limited.
- this embodiment considers applying the precoding information calculated by using the downlink channel information to the uplink transmission channel.
- the base station as the second communication node sends a downlink reference signal to the first communication node, where the downlink reference signal includes downlink channel information.
- Step S7020 Receive the uplink reference signal sent by the first communication node using the downlink channel information.
- the first communication node After acquiring the downlink channel information, the first communication node calculates the precoding information of the uplink transmission channel based on the downlink channel information, and buffers the precoding information. The precoding is selected from the buffered precoding information to generate the uplink reference signal, and the precoding selection information is buffered. The second communication node will receive the uplink reference signal sent by the first communication node.
- Step S7030 Send downlink control signaling to the first communication node, where the downlink control signaling includes a subband SRS resource indication.
- the second communication node After receiving the uplink reference signal sent by the first communication node, the second communication node can send downlink control signaling to the first communication node.
- the downlink control signaling is used to schedule the uplink transmission channel of the first communication node, and the downlink control signal
- the command includes the sub-band SRS resource indication.
- the subband SRS resource indicator is used to indicate the subband precoding of the uplink transmission channel.
- the precoding used by the uplink transmission channel in a certain uplink subband is determined by the subband SRS resource indicator corresponding to the uplink subband.
- Step S7040 Receive the uplink transmission channel sent by the first communication node according to the scheduling of the downlink control signaling.
- the first communication node After the first communication node monitors the downlink control signaling, it can send the uplink transmission channel according to the scheduling of the downlink control signaling. Since the downlink control signaling includes the subband SRS resource indicator, the first communication node can determine the precoding of the uplink transmission channel to be transmitted according to the subband SRS resource indicator in the downlink control signaling, and send the uplink transmission channel. Then the second communication node will receive the uplink transmission channel sent by the first communication node.
- the uplink transmission method provided in this embodiment is applied to a second communication node.
- the downlink reference signal is sent to the first communication node, and the downlink reference signal includes downlink channel information, and then the uplink reference signal sent by the first communication node using the downlink channel information is received.
- the downlink control signaling includes the subband SRS resource indication, and the uplink transmission channel sent by the first communication node according to the scheduling of the downlink control signaling is received, so that the uplink transmission channel and the downlink transmission
- the uplink transmission channel can use the precoding information calculated by the downlink channel information, which improves the accuracy of channel estimation and is beneficial to the enhancement of uplink transmission.
- the uplink transmission method provided in this embodiment and the uplink transmission method provided in the embodiment shown in FIG. 1 are processing on the base station side and processing on the UE side respectively.
- the specific implementation has been carried out in the embodiment shown in FIG. 1 The detailed description will not be repeated in this embodiment.
- Fig. 8 is a schematic structural diagram of an uplink transmission device provided in an embodiment.
- the uplink transmission device provided in this embodiment is set at a first communication node. As shown in Fig. 8, the uplink transmission device provided in this embodiment includes:
- the reference signal receiving module 81 is configured to receive the downlink reference signal sent by the second communication node to obtain downlink channel information; the reference signal sending module 82 is configured to use the downlink channel information to send the uplink reference signal; the monitoring module 83 is configured to monitor the second
- the downlink control signaling sent by the communication node includes the subband SRS resource indication; the channel sending module 84 is configured to send the uplink transmission channel according to the scheduling of the downlink control signaling.
- the uplink transmission device provided in this embodiment is used to implement the uplink transmission method of the embodiment shown in FIG. 1.
- the implementation principle and technical effect of the uplink transmission device provided in this embodiment are similar, and will not be repeated here.
- Fig. 9 is a schematic structural diagram of another uplink transmission device provided in an embodiment.
- the uplink transmission device provided in this embodiment is set at a second communication node.
- the uplink transmission device provided in this embodiment includes:
- the reference signal sending module 91 is configured to send a downlink reference signal to the first communication node, where the downlink reference signal is used to obtain downlink channel information; the reference signal receiving module 92 is configured to receive an uplink reference signal sent by the first communication node using the downlink channel information
- the signaling sending module 93 is configured to send downlink control signaling to the first communication node, and the downlink control signaling includes a subband SRS resource indication; the channel receiving module 94 is configured to receive the scheduling of the first communication node according to the downlink control signaling The uplink transmission channel sent.
- the uplink transmission device provided in this embodiment is used to implement the uplink transmission method of the embodiment shown in FIG. 7.
- the implementation principle and technical effect of the uplink transmission device provided in this embodiment are similar, and will not be repeated here.
- FIG. 10 is a schematic structural diagram of an uplink transmission system provided by an embodiment.
- the uplink transmission system provided in this embodiment includes: a first communication node 101 and a second communication node 102.
- the first communication node 101 includes the uplink transmission device as shown in FIG. 8, and the second communication node 102 includes the uplink transmission device as shown in FIG. 9.
- the first communication node 101 is, for example, a UE, and the second communication node 102 is, for example, a base station.
- FIG. 11 is a schematic structural diagram of a terminal provided by an embodiment.
- the terminal includes a processor 111, a memory 112, a transmitter 113, and a receiver 114; the number of processors 111 in the terminal can be one or There are multiple.
- One processor 111 is taken as an example in FIG. 11; the processor 111 and the memory 112 in the terminal may be connected through a bus or other methods. In FIG. 11, the connection through a bus is taken as an example.
- the memory 112 can be configured to store software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the uplink transmission method in the embodiment of FIG. 1 of the present application (for example, in the uplink transmission device).
- the processor 111 implements at least one functional application and data processing of the terminal by running software programs, instructions, and modules stored in the memory 112, that is, implements the above-mentioned uplink transmission method.
- the memory 112 may mainly include a program storage area and a data storage area.
- the program storage area may store an operating system and an application program required by at least one function; the data storage area may store data created according to the use of the terminal, and the like.
- the memory 112 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other non-volatile solid-state storage devices.
- the transmitter 113 is a module or a combination of devices capable of transmitting radio frequency signals into space, for example, a combination of radio frequency transmitters, antennas, and other devices.
- the receiver 114 is a module or a combination of devices capable of receiving radio frequency signals from space, for example, a combination of radio frequency receivers, antennas, and other devices.
- FIG. 12 is a schematic structural diagram of a base station provided by an embodiment.
- the base station includes a processor 121, a memory 122, a transmitter 123, and a receiver 124; the number of processors 121 in the base station may be one or There are multiple.
- One processor 121 is taken as an example in FIG. 12; the processor 121 and the memory 122 in the base station may be connected through a bus or other methods. In FIG. 12, the connection through a bus is taken as an example.
- the memory 122 can be configured to store software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the uplink transmission method in the embodiment of FIG. 7 of the present application (for example, in the uplink transmission device).
- the processor 121 implements at least one functional application and data processing of the base station by running the software programs, instructions, and modules stored in the memory 122, that is, implements the above-mentioned uplink transmission method.
- the memory 122 may mainly include a program storage area and a data storage area.
- the program storage area may store an operating system and an application program required by at least one function; the data storage area may store data created according to the use of the base station, and the like.
- the memory 122 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other non-volatile solid-state storage devices.
- the transmitter 123 is a module or a combination of devices capable of transmitting radio frequency signals into space, for example, a combination of radio frequency transmitters, antennas, and other devices.
- the receiver 124 is a module or a combination of devices capable of receiving radio frequency signals from space, for example, a combination of radio frequency receivers, antennas, and other devices.
- An embodiment of the present application also provides a storage medium containing computer-executable instructions.
- the computer-executable instructions When executed by a computer processor, they are used to perform an uplink transmission method, the method comprising: receiving a downlink reference sent by a second communication node Signal to obtain downlink channel information; use downlink channel information to send uplink reference signals; monitor downlink control signaling sent by the second communication node, downlink control signaling includes subband SRS resource indication; send uplink transmission channel according to the scheduling of downlink control signaling .
- An embodiment of the present application also provides a storage medium containing computer-executable instructions.
- the computer-executable instructions are executed by a computer processor, they are used to perform an uplink transmission method.
- the method includes: sending a downlink reference signal to a first communication node , The downlink reference signal is used to obtain downlink channel information; receiving the uplink reference signal sent by the first communication node using the downlink channel information; sending downlink control signaling to the first communication node, the downlink control signaling including the subband SRS resource indication; receiving the first communication node An uplink transmission channel sent by a communication node according to the scheduling of downlink control signaling.
- user terminal encompasses any suitable type of wireless user equipment, such as a mobile phone, a portable data processing device, a portable web browser, or a vehicle-mounted mobile station.
- the various embodiments of the present application can be implemented in hardware or dedicated circuits, software, logic or any combination thereof.
- some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software that may be executed by a controller, microprocessor, or other computing device, although the present application is not limited thereto.
- Computer program instructions can be assembly instructions, Instruction Set Architecture (ISA) instructions, machine instructions, machine-related instructions, microcode, firmware instructions, state setting data, or written in any combination of one or more programming languages Source code or object code.
- ISA Instruction Set Architecture
- the block diagram of any logic flow in the drawings of the present application may represent program steps, or may represent interconnected logic circuits, modules, and functions, or may represent a combination of program steps and logic circuits, modules, and functions.
- the computer program can be stored on the memory.
- the memory can be of any type suitable for the local technical environment and can be implemented using any suitable data storage technology, such as but not limited to read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), optical Memory devices and systems (Digital Video Disc (DVD) or Compact Disc (CD)), etc.
- Computer-readable media may include non-transitory storage media.
- the data processor can be any type suitable for the local technical environment, such as but not limited to general-purpose computers, special-purpose computers, microprocessors, digital signal processors (Digital Signal Processing, DSP), application specific integrated circuits (ASICs) ), programmable logic devices (Field-Programmable Gate Array, FPGA), and processors based on multi-core processor architecture.
- DSP Digital Signal Processing
- ASICs application specific integrated circuits
- FPGA Field-Programmable Gate Array
- FPGA Field-Programmable Gate Array
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
Claims (18)
- 一种上行传输方法,应用于第一通信节点,包括:接收第二通信节点发送的下行参考信号,以及获取下行信道信息;利用所述下行信道信息发送上行参考信号;监测所述第二通信节点发送的下行控制信令,所述下行控制信令包括子带探测参考信号SRS资源指示;根据所述下行控制信令的调度发送上行传输信道。
- 根据权利要求1所述的方法,其中,所述上行参考信号包括N个SRS资源组,第i个SRS资源组包括M i个SRS资源,其中,每个SRS资源组与一个下行参考信号关联,i、N和M i为大于或等于1的整数,以及1≤i≤N。
- 根据权利要求1所述的方法,其中,所述利用所述下行信道信息发送上行参考信号,包括:根据所述下行信道信息确定所述上行参考信号每一个上行子带的预编码;根据所述上行参考信号每一个上行子带的预编码生成所述上行参考信号并发送所述上行参考信号。
- 根据权利要求3所述的方法,其中,所述上行子带的划分方式,包括以下至少一种方法:根据所述上行传输信道所在载波分量的带宽和子带划分粒度大小划分;根据所述上行传输信道所在部分带宽BWP的频域范围和子带划分粒度大小划分;根据SRS资源的频域范围和子带划分粒度大小划分。
- 根据权利要求1~4中任一项所述的方法,其中,所述下行控制信令包括以下任一种方式:一个调度上行传输信道的下行控制信息DCI;两个独立调度上行传输信道的DCI;两个联合调度上行传输信道的DCI。
- 根据权利要求5所述的方法,其中,所述一个调度上行传输信道的DCI包含所述子带SRS资源指示。
- 根据权利要求5所述的方法,其中,所述两个独立调度上行传输信道的DCI指示的频域范围不重叠,且所述两个独立调度上行传输信道的DCI均包含所述子带SRS资源指示。
- 根据权利要求5所述的方法,其中,所述两个联合调度上行传输信道的DCI包括第一DCI和第二DCI,所述第一DCI和所述第二DCI共同调度所述上行传输信道。
- 根据权利要求8所述的方法,其中,所述第一DCI包括以下信息至少之一:载波指示、BWP指示、频域资源分配、时域资源分配、跳频指示、跳频偏移量指示、调制编码方式、冗余版本、进程号、SRS资源指示、SRS资源组指示、传输层数指示、解调参考信号DMRS端口指示、DMRS序列初始化指示、所述第二DCI的大小指示;所述第二DCI包括以下信息至少之一:上行子带编号、多个子带SRS资源指示、调制编码方式、冗余版本、冗余版本偏移量、DMRS序列初始化指示、DMRS序列初始化的偏移量指示。
- 根据权利要求9所述的方法,其中,所述第二DCI的信息比特大小通过以下方式至少之一确定:所述第一DCI的第二DCI的大小指示、SRS资源与相位追踪参考信号PTRS端口的关联关系、SRS资源组个数、每个SRS资源组包含的SRS资源个数,SRS资源组的选择、每个上行子带包含的SRS资源个数、所述第一DCI的跳频指示、所述第一DCI的跳频偏移量指示、所述第一DCI的SRS资源指示、所述第一DCI的频域资源分配。
- 根据权利要求9所述的方法,其中,所述第二DCI的上行子带编号和多个子带SRS资源指示的关系,包括以下方式至少之一:所述第二DCI包含所述多个子带SRS资源指示,且不包含所述上行子带编号;所述第二DCI包含所述上行子带编号和所述多个子带SRS资源指示,其中,一个上行子带编号对应一个子带SRS资源指示;所述第二DCI包含所述上行子带编号和所述多个子带SRS资源指示,其中,一组上行子带编号对应一个子带SRS资源指示。
- 根据权利要求8所述的方法,其中,所述上行传输信道的层数由以下信息至少之一确定:所述第一DCI的SRS资源指示、所述第一DCI的传输层数指示、所述第一DCI的DMRS端口指示、所述第二DCI的多个子带SRS资源指示。
- 根据权利要求8所述的方法,其中,所述根据所述下行控制信令的调度发送上行传输信道,包括:在未监测到所述第二DCI的情况下,根据所述第一DCI调度所述上行传输信道;在监测到所述第二DCI的情况下,根据所述第一DCI和所述第二DCI联合调度所述上行传输信道。
- 根据权利要求1-4中任一项所述的方法,其中,所述子带SRS资源指示用于指示所述上行传输信道的预编码,所述上行传输信道在每个上行子带使用的预编码通过每个上行子带对应的子带SRS资源指示和所述上行参考信号每一个上行子带的预编码共同确定。
- 一种上行传输方法,应用于第二通信节点,包括:向第一通信节点发送下行参考信号,所述下行参考信号用于获取下行信道信息;接收所述第一通信节点利用所述下行信道信息发送的上行参考信号;向所述第一通信节点发送下行控制信令,所述下行控制信令包括子带探测参考信号SRS资源指示;接收所述第一通信节点根据所述下行控制信令的调度发送的上行传输信道。
- 根据权利要求15所述的方法,其中,所述接收所述第一通信节点利用所述下行信道信息发送的上行参考信号,包括:接收所述第一通信节点根据所述下行信道信息确定所述上行参考信号每一个上行子带的预编码后,根据所述上行参考信号每一个上行子带的预编码生成并发送的所述上行参考信号。
- 根据权利要求16所述的方法,其中,所述上行子带的划分方式,包括以下至少一种方法:根据所述上行传输信道所在载波分量的带宽和子带划分粒度大小划分;根据所述上行传输信道所在部分带宽BWP的频域范围和子带划分粒度大小划分;根据SRS资源的频域范围和子带划分粒度大小划分。
- 一种上行传输装置,包括处理器和存储器,所述处理器用于运行储存在所述存储器里的程序指令以执行根据权利要求1-17中任意一项所述的上行传输方法。
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA3151042A CA3151042C (en) | 2019-09-12 | 2020-09-11 | Uplink transmission method and device |
| EP20863266.1A EP4030669A4 (en) | 2019-09-12 | 2020-09-11 | UPLINK TRANSMISSION METHOD AND DEVICE |
| US17/642,494 US12132674B2 (en) | 2019-09-12 | 2020-09-11 | Uplink transmission method and device |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910867153.9A CN110545168B (zh) | 2019-09-12 | 2019-09-12 | 上行传输方法和装置 |
| CN201910867153.9 | 2019-09-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2021047647A1 true WO2021047647A1 (zh) | 2021-03-18 |
Family
ID=68713543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2020/114826 Ceased WO2021047647A1 (zh) | 2019-09-12 | 2020-09-11 | 上行传输方法和装置 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US12132674B2 (zh) |
| EP (1) | EP4030669A4 (zh) |
| CN (1) | CN110545168B (zh) |
| WO (1) | WO2021047647A1 (zh) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115622674B (zh) * | 2017-02-07 | 2024-12-24 | 中兴通讯股份有限公司 | 一种相位噪声导频的配置、确定方法及装置 |
| CN110545168B (zh) * | 2019-09-12 | 2024-12-03 | 中兴通讯股份有限公司 | 上行传输方法和装置 |
| CN113055138B (zh) * | 2019-12-26 | 2022-09-09 | 大唐移动通信设备有限公司 | 一种指示消息传输方法和通信设备 |
| CN113055066B (zh) * | 2019-12-26 | 2022-11-04 | 大唐移动通信设备有限公司 | 一种通信方法和装置 |
| CN115242365B (zh) * | 2020-01-14 | 2025-06-17 | 北京紫光展锐通信技术有限公司 | 探测参考信号传输方法及相关产品 |
| CN113271191B (zh) * | 2020-02-14 | 2022-08-26 | 展讯通信(上海)有限公司 | Ue的上行探测发送方法及相关设备 |
| CN118232955A (zh) * | 2021-01-15 | 2024-06-21 | 北京小米移动软件有限公司 | 一种跳频的控制方法及装置 |
| CN115379570A (zh) * | 2021-05-20 | 2022-11-22 | 华为技术有限公司 | 一种资源调度方法及通信装置 |
| CN117917156A (zh) | 2021-09-14 | 2024-04-19 | 中兴通讯股份有限公司 | 用于非基于码本的传输的系统和方法 |
| CN115866757B (zh) * | 2021-09-24 | 2026-03-06 | 展讯通信(上海)有限公司 | 数据传输方向的指示方法及装置、通信装置 |
| EP4496234A4 (en) * | 2022-03-16 | 2026-04-01 | Beijing Xiaomi Mobile Software Co Ltd | METHOD AND APPARATUS FOR DETERMINING SUB-BAND INFORMATION, DEVICE AND STORAGE MEDIA |
| EP4515769A4 (en) * | 2022-04-29 | 2026-07-15 | Qualcomm Inc | PREDICTION AND INDICATION OF UPLINK PARAMETERS IN WIRELESS COMMUNICATION |
| KR20250039359A (ko) * | 2022-09-02 | 2025-03-20 | 지티이 코포레이션 | 무선 통신을 위한 대역폭 파트 및 서브밴드 리소스 표시 및 결정 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013064122A1 (zh) * | 2011-11-03 | 2013-05-10 | 华为技术有限公司 | 测量参考信号srs发送和信道检测的方法、装置及终端 |
| CN104735789A (zh) * | 2013-12-19 | 2015-06-24 | 中国移动通信集团公司 | 一种小区间干扰消除方法、装置及系统 |
| WO2018056789A1 (ko) * | 2016-09-26 | 2018-03-29 | 엘지전자(주) | 무선 통신 시스템에서 상향링크 송수신 방법 및 이를 위한 장치 |
| CN110071749A (zh) * | 2018-01-22 | 2019-07-30 | 华为技术有限公司 | 一种天线选择指示方法、装置和系统 |
| CN110545168A (zh) * | 2019-09-12 | 2019-12-06 | 中兴通讯股份有限公司 | 上行传输方法和装置 |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102244559A (zh) * | 2010-05-12 | 2011-11-16 | 华为技术有限公司 | 一种预编码信息的发送和接收方法及装置 |
| US9768939B2 (en) * | 2012-06-18 | 2017-09-19 | Lg Electronics Inc. | Signal transmission/reception method and apparatus therefor |
| US10200904B2 (en) * | 2015-06-24 | 2019-02-05 | Qualcomm Incorporated | Techniques for transmitting on multiple carriers of a shared radio frequency spectrum band |
| EP3425837B1 (en) | 2016-04-01 | 2022-06-01 | Samsung Electronics Co., Ltd. | Method and apparatus for coexistance of device-to-device communications and cellular communications in mobile communications system |
| CN117176225A (zh) * | 2016-04-19 | 2023-12-05 | 苹果公司 | 用于上行链路子带波束形成的系统和方法 |
| CN110176949A (zh) * | 2016-08-12 | 2019-08-27 | 华为技术有限公司 | 数据发送方法、信令发送方法、装置及系统 |
| WO2018097586A1 (en) | 2016-11-22 | 2018-05-31 | Samsung Electronics Co., Ltd. | Method and apparatus for multiplexing uplink channels in wireless cellular communication system |
| CN110800244B (zh) * | 2017-06-28 | 2022-05-27 | Lg电子株式会社 | 在无线通信系统中发送和接收信道状态信息-参考信号的方法及其设备 |
| US11445511B2 (en) * | 2017-08-10 | 2022-09-13 | Beijing Xiaomi Mobile Software Co., Ltd. | Method for information transmission adjustment, base station, and user equipment |
| CN113225170A (zh) * | 2017-09-30 | 2021-08-06 | 中兴通讯股份有限公司 | 一种无线通信方法及装置 |
| CN109600838B (zh) * | 2017-09-30 | 2020-11-10 | 华为技术有限公司 | 一种上行子带预编码矩阵的指示方法、终端及基站 |
| CN108111283B (zh) * | 2017-11-03 | 2021-12-14 | 中兴通讯股份有限公司 | 一种参考信号的传输方法及设备 |
| US11863326B2 (en) * | 2018-07-26 | 2024-01-02 | Sharp Kabushiki Kaisha | Base stations and methods |
| WO2020164117A1 (en) * | 2019-02-15 | 2020-08-20 | Lenovo (Beijing) Limited | Indicating dmrs ports for codewords |
| WO2020199203A1 (en) * | 2019-04-04 | 2020-10-08 | Lenovo (Beijing) Limited | Determining channel statistics for clear channel assessments |
| US11349614B2 (en) * | 2019-04-24 | 2022-05-31 | Telefonaktiebolaget Lm Ericsson (Publ) | HARQ-ACK reporting with PDSCH grouping |
| EP3966975A4 (en) * | 2019-05-05 | 2023-03-08 | Lenovo (Beijing) Limited | SIDE LINK DATA PACKET ACKNOWLEDGMENT |
-
2019
- 2019-09-12 CN CN201910867153.9A patent/CN110545168B/zh active Active
-
2020
- 2020-09-11 EP EP20863266.1A patent/EP4030669A4/en active Pending
- 2020-09-11 WO PCT/CN2020/114826 patent/WO2021047647A1/zh not_active Ceased
- 2020-09-11 US US17/642,494 patent/US12132674B2/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013064122A1 (zh) * | 2011-11-03 | 2013-05-10 | 华为技术有限公司 | 测量参考信号srs发送和信道检测的方法、装置及终端 |
| CN104735789A (zh) * | 2013-12-19 | 2015-06-24 | 中国移动通信集团公司 | 一种小区间干扰消除方法、装置及系统 |
| WO2018056789A1 (ko) * | 2016-09-26 | 2018-03-29 | 엘지전자(주) | 무선 통신 시스템에서 상향링크 송수신 방법 및 이를 위한 장치 |
| CN110071749A (zh) * | 2018-01-22 | 2019-07-30 | 华为技术有限公司 | 一种天线选择指示方法、装置和系统 |
| CN110545168A (zh) * | 2019-09-12 | 2019-12-06 | 中兴通讯股份有限公司 | 上行传输方法和装置 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP4030669A4 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP4030669A1 (en) | 2022-07-20 |
| CA3151042A1 (en) | 2021-03-18 |
| EP4030669A4 (en) | 2023-10-04 |
| CN110545168A (zh) | 2019-12-06 |
| US20220345266A1 (en) | 2022-10-27 |
| CN110545168B (zh) | 2024-12-03 |
| US12132674B2 (en) | 2024-10-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110545168B (zh) | 上行传输方法和装置 | |
| CN110022615B (zh) | 一种数据传输方法、装置、设备及计算机可读存储介质 | |
| CN110535617A (zh) | 一种信息确定方法、装置、第一通信节点和存储介质 | |
| CN110831022B (zh) | 物理资源处理方法及用户设备 | |
| CN110830194A (zh) | 上行信道资源的指示及确定方法、基站、终端、介质 | |
| US20210120499A1 (en) | Power allocation method and related device | |
| CN113518454A (zh) | 下行控制信息的配置方法、以及下行链路数据的接收方法 | |
| CN111866959B (zh) | 波束失败上报的方法和装置 | |
| CN110535604B (zh) | 一种速率匹配方法和装置 | |
| US11234229B2 (en) | Resource scheduling method, user equipment, and access network device | |
| KR20230006444A (ko) | 무선 통신 시스템에서 다운링크 제어 정보를 송신 또는 수신하는 방법 및 장치 | |
| CN113055066B (zh) | 一种通信方法和装置 | |
| US11979905B2 (en) | Uplink data transmission method, user device, and computer readable storage medium | |
| EP4106438B1 (en) | Control information transmission method and device | |
| US20190124705A1 (en) | Identifier management method, apparatus, and system | |
| CN107708210B (zh) | 用于多用户叠加传输的方法、网络设备和终端设备 | |
| CN115038124A (zh) | 一种频段调度方法、通信节点及计算机可读存储介质 | |
| CN112637958A (zh) | 资源调度方法、装置、基站、用户设备和存储介质 | |
| CN110798891B (zh) | 一种上行传输配置方法、装置及设备 | |
| CN111901081A (zh) | 数据传输方法、装置、第一通信节点和第二通信节点 | |
| WO2020187154A1 (zh) | 链路失败恢复的方法和装置 | |
| JP7068351B2 (ja) | 時間領域リソース情報の指示方法及び装置 | |
| CN115843118A (zh) | 指示方法、参考信号发送方法、通信节点及存储介质 | |
| CN111867080B (zh) | 一种下行信道指示方法和设备 | |
| CA3151042C (en) | Uplink transmission method and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 20863266 Country of ref document: EP Kind code of ref document: A1 |
|
| ENP | Entry into the national phase |
Ref document number: 3151042 Country of ref document: CA |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| ENP | Entry into the national phase |
Ref document number: 2020863266 Country of ref document: EP Effective date: 20220412 |
|
| WWG | Wipo information: grant in national office |
Ref document number: 202227016559 Country of ref document: IN |











