WO2025123376A1 - Configuration de signal de référence de sondage pour transmission en liaison montante à trois ports - Google Patents

Configuration de signal de référence de sondage pour transmission en liaison montante à trois ports Download PDF

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Publication number
WO2025123376A1
WO2025123376A1 PCT/CN2023/139307 CN2023139307W WO2025123376A1 WO 2025123376 A1 WO2025123376 A1 WO 2025123376A1 CN 2023139307 W CN2023139307 W CN 2023139307W WO 2025123376 A1 WO2025123376 A1 WO 2025123376A1
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Prior art keywords
srs
ports
port
transmission
srs resource
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English (en)
Inventor
Ke YAO
Bo Gao
Yang Zhang
Guangyu JIANG
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ZTE Corp
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ZTE Corp
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Publication of WO2025123376A1 publication Critical patent/WO2025123376A1/fr
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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
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0023—Time-frequency-space
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044—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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network

Definitions

  • This disclosure is directed generally to digital wireless communications.
  • Mobile communication technologies are moving the world toward an increasingly connected and networked society.
  • the rapid growth of mobile communications and advances in technology have led to greater demand for capacity and connectivity.
  • Other aspects, such as energy consumption, device cost, spectral efficiency, and latency are also important to meeting the needs of various communication scenarios.
  • FIG. 2 is a block diagram representation of a portion of an apparatus in accordance with some embodiments of the disclosed technology.
  • a transmit resource for SRS with 3 ports can be a 3-port SRS pattern.
  • a transmit resource for SRS may include at least frequency domain resource (e.g., RB (resource block) , comb offset) , time domain resource (e.g., frame index, subframe index, slot index, OFDM symbol index) , or code domain resource (e.g., cyclic shift, i.e., CS) .
  • frequency domain resource e.g., RB (resource block) , comb offset
  • time domain resource e.g., frame index, subframe index, slot index, OFDM symbol index
  • code domain resource e.g., cyclic shift, i.e., CS
  • different ports correspond to different time domain parameters (e.g., symbol) , different frequency domain parameters (e.g., comb offset) , and/or different code domain parameters (e.g., CS) , in order to keep orthogonality among the ports.
  • a 3-port SRS pattern may mean that at least one time domain parameter, one frequency domain parameter, and/or one code domain parameter is configured for the SRS resource.
  • a transmit resource for one port can be determined by such configured time domain, frequency domain, or code domain parameters, e.g., for the first port, and transmit resources for the other two ports can be determined by such configured parameters by adding an offset value considering 3 ports in total.
  • comb length-4, comb offset 0 and CS 0 are configured for an SRS resource
  • port 0 is determined by comb offset 0, CS 0 by default
  • port 1 can be determined as same comb offset as port 0, different CS from port 0, alternatively, port 1, port 2 can be determined as different comb offset from port 0, same CS as port 0.
  • a network device may transmit to a wireless device (e.g., a UE) an SRS configuration.
  • the UE may configure, for an SRS transmission, one SRS resource with more than three ports, e.g., four ports.
  • a transmit resource for one port can be determined by configuring time domain, frequency domain, or code domain parameters, e.g., for the first port, and the transmit resources for other two ports can be determined based on such configured parameters by adding an offset value considering 4 ports in total.
  • Four ports can share a same comb offset, or different 4 comb offsets.
  • 4 ports can have partially different comb offsets, e.g., 2 port sharing a same comb offset, and the other 2 ports sharing another comb offset. That means a total of 2 different comb offsets are allocated to 4 ports.
  • a subsequent three-port PUSCH transmission may be determined based on the four-port SRS transmission and selection information.
  • the selection information may be predefined, or indicated by a DCI signaling, or an RRC signaling.
  • the selection information may indicate that 1 port among the 4 ports of the 4-port SRS pattern is excluded from the subsequent three-port PUSCH transmission, or that 3 ports of the 4 ports of 4-port SRS pattern are used in the three-port PUSCH transmission.
  • a port selection information can be used.
  • the port selection information can be a 4-bit bitmap, and each bit corresponding to the corresponding port is selected or not selected (excluded) .
  • E. g., “0001” means the fourth port is not selected, which means the first 3 ports are selected.
  • “1101” means the first, second and the fourth ports are selected.
  • the port selection information can be a 2-bit information, and each value of 2-bit corresponding to a respective port which is not selected (excluded) .
  • E. g., “00” means the first port is not selected, which means the second, third and fourth ports are selected.
  • the port selection information can be indicated to the UE via an RRC signaling, medium access control (MAC) control element (CE) , or DCI signaling.
  • the port selection information may not explicitly exist, but 3 ports among 4 ports can also be predefined, e.g., the first or the last 3 ports are selected, or the last or the first port is not selected.
  • an SRS resource sequence and/or SRS resource mapping is determined based on four ports P_0, P_1, P_2, and P_3, via which a four-port SRS is transmitted from the UE to the network device.
  • the network device generates a three-port precoder based on the four-port SRS, and the UE performs an uplink transmission (e.g., a PUSCH transmission) via three of the four ports P_0, P_1, P_2, and P_3 by referring to the three-port precoder.
  • One port used in the four-port SRS transmission is not used in the three-port PUSCH transmission.
  • the network device can learn the channel condition associated with the four ports, and may select three ports for the three-port PUSCH transmission based on the detected channel condition so as to improve or optimize the PUSCH transmission accordingly.
  • FIG. 4 illustrates, among P_0, P_1, P_2, and P_3 used in the four-port SRS transmission, P_0, P_1, and P_2 are used in the PUSCH transmission, and P_3 used in the four-port SRS transmission is not used in the three-port PUSCH transmission. It is understood that FIG. 4 is provided for illustration purposes, and not intended to be limiting.
  • the specific port that is used in a four-port SRS transmission but not in the three-port PUSCH transmission may be selected based on the selection information relating to one or more factors including, e.g., a condition of the UE (e.g., a capability condition of the UE) , a channel condition encountered by the SRS, etc., and may be adjusted in response to a change in the channel condition as the network device detects via a next SRS transmission.
  • a condition of the UE e.g., a capability condition of the UE
  • a channel condition encountered by the SRS e.g., a channel condition encountered by the SRS, etc.
  • P_0, P_1, P_2, and P_3 used in the four-port SRS transmission may be used in the PUSCH transmission, and P_1 used in the four-port SRS transmission is not used in the three-port PUSCH transmission.
  • P_0, P_1, P_2, and P_3 used in the four-port SRS transmission are used in a PUSCH transmission, and P_3 used in the four-port SRS transmission is not used in the three-port PUSCH transmission; in response to a change in the channel condition encountered by a next four-port SRS transmission via the same four ports, P_0, P_2, and P_3 is used in a next PUSCH transmission, and P_1 used in the four-port SRS transmission is not used in the next three-port PUSCH transmission.
  • a network device may transmit to a wireless device (e.g., a UE) an SRS configuration.
  • the UE may configure, for a three-port SRS transmission, one three-port SRS resource by determining an SRS resource sequence and/or SRS resource mapping based on the four-port SRS pattern and selection information.
  • the selection information may be predefined, or indicated by a DCI signaling, or an RRC signaling.
  • the selection information may indicate that 1 port among the 4 ports of the 4-port SRS pattern is excluded from the three-port SRS transmission, or that 3 ports of the 4 ports of 4-port SRS pattern are used in the three-port SRS transmission.
  • the subsequent PUSCH transmission may be via the same three ports used in the three-port SRS transmission.
  • a three-port SRS resource sequence and/or SRS resource mapping is determined based on four ports P_0, P_1, P_2, and P_3 such that a three-port SRS is transmitted via P_0, P_1, and P-3 from the UE to the network device.
  • the network device generates a three-port precoder based on the three-port SRS, and the UE performs a PUSCH transmission via the three ports P_0, P_1, and P_3 by referring to the three-port precoder.
  • Port P_2 is available but not used in the three-port SRS transmission and not used in the three-port PUSCH transmission.
  • the network device does not learn the channel condition associated with the omitted port; however, the SRS transmission may proceed based on three out of four ports that are potentially available, thereby reducing the hardware usage associated with the SRS transmission.
  • FIG. 5 illustrates, among P_0, P_1, P_2, and P_3 potentially available for a three-port SRS transmission, P_0, P_1, and P_3 are used in the three-port SRS transmission and the corresponding three-port PUSCH transmission, and P_2 is not used in the three-port SRS transmission or the corresponding three-port PUSCH transmission. It is understood that FIG. 5 is provided for illustration purposes, and not intended to be limiting.
  • the specific port that is not used in a three-port SRS transmission or a corresponding three-port PUSCH transmission may be selected based on the selection information relating to one or more factors including, e.g., a condition of the UE (e.g., the capability of the UE at or around the time of an SRS transmission and/or a PUSCH transmission) , a channel condition encountered by the SRS, and may be adjusted in response to a change in the channel condition as the network device detects via a next SRS transmission.
  • a condition of the UE e.g., the capability of the UE at or around the time of an SRS transmission and/or a PUSCH transmission
  • a channel condition encountered by the SRS e.g., the capability of the UE at or around the time of an SRS transmission and/or a PUSCH transmission
  • P_0, P_1, P_2, and P_3 potentially available for a three-port SRS transmission and/or a three-port PUSCH transmission
  • P_0, P_1, and P_2 may be used in both, and P_3 is not used in either one of the three-port SRS transmission or the three-port PUSCH transmission.
  • P_0, P_1, P_2, and P_3 potentially available for a three-port SRS transmission and/or a three-port PUSCH transmission
  • P_0, P_1, and P_3 are used in a PUSCH transmission
  • P_2 is omitted; in response to a change in the UE condition, P_0, P_2, and P_3 is used in a next three-port SRS transmission and a corresponding three-port PUSCH transmission, and P_1 is not used in either one of next three-port SRS transmission or the next three-port PUSCH transmission.
  • Case 3 more than one SRS resource to support three-port SRS
  • a UE can be configured with more than one SRS resource to support three-port SRS.
  • a UE can be configured with one two-port SRS resource and one one-port SRS resource to support three-port SRS, as shown in FIG. 6.
  • the two SRS resources can be in one
  • SRS resource set or in two SRS resource sets.
  • an SRS resource SRS 1 is configured with two ports, P_0 SRS1 and P_1 SRS1 of SRS1, and an SRS resource SRS2 is configured with one port, P_0 SRS2 of SRS2.
  • SRS1 and SRS2 are combined to support a three-port SRS transmission via SRS ports P_0, P_1, and P_2 from the UE to the network device.
  • the network device generates a three-port precoder based on the three-port SRS transmission, and the UE performs a three-port PUSCH transmission via the three ports P_0, P_1, and P_2 by referring to the three-port precoder.
  • the more than one SRS resource that collectively support the three-port SRS transmission can be transmitted in same symbol (s) , or in continuous symbols. Otherwise, the transmission of symbols corresponding to the more than one SRS resource may be within a time interval, or start from a same symbol.
  • same symbols mean that each symbol carries all 3 ports SRS transmission; that is, each symbol contains SRS information from all three antenna ports. More than one symbol may be used for SRS repetition.
  • continuous symbols mean that each symbol may carry one or two ports SRS transmission, but all 3 ports SRS transmission are completed in symbols arranged in a sequential and uninterrupted manner.
  • the more than one SRS resource that collectively support the three-port SRS transmission can be configured with one or more same parameters including, e.g., a same comb offset requirement, a same comb number, a same frequency hopping parameter, a same partial frequency hopping parameter, etc.
  • different ports in the more than one SRS resource that collectively support the three-port SRS transmission can correspond to different cyclic shifts (CSs) to differentiate SRS signals transmitted from the three antenna ports of the UE.
  • CSs cyclic shifts
  • the more than one SRS resource can be configured with (or be assumed as) the same spatial filter, or associated with the same QCL (quasi-co-location) type D reference signal (RS) .
  • SRS transmissions may be periodic, e.g., every few milliseconds.
  • SRS transmissions may be aperiodic and do not follow a fixed, regular interval; instead, they may be triggered by specific events or conditions in the network. If the more than one SRS resource that collectively support the three-port SRS transmission are configured in different SRS resource sets with an aperiodic time behavior, the SRS resource sets may be configured to be triggered at the same time.
  • Support of simultaneous transmission for two SRS resources may be subject to UE capability.
  • the UE may assume that antenna ports from different SRS resources that collectively support the three-port SRS transmission correspond to different UE antenna ports.
  • the different SRS resources may belong to a same SRS resource set or different SRS resource sets.
  • the sounding reference signal resource indicator may identify the configuration for an uplink transmission (e.g., a PUSCH transmission) by a UE.
  • SRI is used to specify the ports relating to the SRS resource (s) the UE may use for the uplink transmission.
  • two SRS resources may be combined to support three-port SRS transmission.
  • An SRS resource may be configured with two ports, and another SRS resource is configured with one port.
  • the two SRS resources may be referred to as an SRS resource group or an SRS resource pair.
  • the pair of SRS resources can be within one SRS resource set.
  • the pair of SRS resources can be configured in different SRS resource sets, i.e., one SRS resource is in one SRS resource set, and another SRS resource is in another SRS resource.
  • a first SRS resource with one port and a second SRS resource with two ports may be combined to support a three-port SRS transmission (e.g., as illustrated in FIG. 6) .
  • the first SRS resource and the second SRS resource may belong to a same SRS resource set, or two different SRS resource sets.
  • the first SRS resource and the second SRS resource may be indicated in one or two SRI fields in an RRC scheduling message sent by the BS to the UE.
  • the case of combining ports of two SRS resources for one PUSCH transmission may be differentiated from the case that two SRS resources corresponding to two PUSCH transmissions as follows. If at least one of the following conditions are met, two SRI fields are used to indicate combining ports of two SRS resources to support one PUSCH transmission: the UE is configured with 3 ports; the UE is indicated an information to combine ports of 2 SRI fields; or one SRI filed indicating an SRS resource with two ports and another SRI filed indicating an SRS resource with one port.
  • SRS resource and SRS resource set There may be different configuration cases as follows for SRS resource and SRS resource set:
  • one SRS resource set including more than one two-port SRS resource and more than one one-port SRS resource.
  • An SRI field is needed to indicate a pair of SRS resources, in which one SRS resource is configured with two ports and another one SRS resource is configured with one port.
  • one SRS resource set includes one two-port SRS resource and another one SRS resource set includes one one-port SRS resource.
  • An SRI field may not be needed. If only two SRS resources are configured for a codebook or non codebook based transmission, an SRS resource set indicator may not be needed. If there are more than two SRS resource sets (e.g., three SRS resource sets each including one SRS resource that is configured with one port) configured for a codebook or non codebook based transmission, an SRS resource set indicator may be needed.
  • one SRS resource set includes more than one two-port SRS resource and another one SRS resource set includes more than one one-port SRS resource.
  • Embodiment 3 TPMI related aspect of SRS transmission to support three-port PUSCH submission
  • TPMI and the number (or count) of layers (relating to rank) can be jointly indicated in one DCI field.
  • Case 1 one SRS resource transmitted on three ports
  • Case 2 one SRS resource transmitted on three ports or four ports using four-port SRS pattern
  • an SRS transmission to support a three-port PUSCH transmission may be transmitted via three ports according to one SRS resource that is configured with three port. The same three ports may be used in the three-port PUSCH transmission.
  • an SRS transmission to support a three-port PUSCH transmission may be transmitted by the UE via three ports according to one SRS resource that is configured with more than three ports, and at least one of the more than three ports is excluded to determine three ports for the SRS transmission. The same three ports used in the three-port SRS transmission may be used in the three-port PUSCH transmission.
  • an SRS transmission to support a three-port PUSCH transmission may be transmitted by the UE via more than three ports (e.g., four ports) according to one SRS resource that is configured with more than three ports (e.g., four ports) , and at least one of the more than three ports is excluded to determine three ports for the PUSCH transmission. See, e.g., FIGs. 3-5.
  • the number (or count) of ports for TPMI may be determined according to the number (or count) of ports for the one SRS resource corresponding to a PUSCH transmission. This scheme may be used for the case that only one SRS resource is determined for a PUSCH transmission in a scheduling.
  • Case 3 more than one SRS resource to support three-port SRS
  • two SRS resources may be combined to support a three-port SRS transmission.
  • An SRS resource may be configured with two ports, and an SRS resource configured with one port.
  • the number (or count) of ports for TPMI may be determined according to a sum of the numbers (or count) of ports for each SRS resource corresponding to a PUSCH transmission.
  • the SRS resources can be determined for a PUSCH transmission based on one or more SRI indication in one scheduling, or all SRS resources in one SRS resource set without SRI indication for one scheduling. This scheme may be used for the case that more than one SRS resource is determined for a PUSCH transmission in a scheduling. See, e.g.., FIG. 6 in which two SRS resources are indicated for one PUSCH transmission.
  • Embodiment 4 Mapping between SRS ports and PUSCH ports
  • mapping between SRS ports and PUSCH ports can be determined as follows:
  • SRS resource 0 is configured with 2 ports
  • SRS resource 1 is configured with 1 port
  • SRI for a PUSCH transmission indicates SRS resource 0 and SRS resource 1, and then designating the PUSCH port numbering based on the order of the first port and the second port in SRS resource 0, and the only one port in SRS resource 1 corresponds to 3 ports of PUSCH, e.g., PUSCH port 0, 1, 2, respectively.
  • the SRS resources order for port mapping can be determined based on SRS resources order indicated by SRI.
  • the SRI can be indicated by one field, a value may indicate 2 SRS resources, e.g., SRS resource 0 and SRS resource 1 means SRS resource 0 first and SRS resource 1 second, or SRS resource 1 and SRS resource 0 means SRS resource 1 first and SRS resource 0 second.
  • SRS resource 0 or SRS resource 1 can be configured with one or two ports. The sum of the numbers (or counts) of ports of SRS resource 0 and SRS resource 1 is 3.
  • the mapping between SRS ports and PUSCH ports can be determined according to a mapping indication.
  • the mapping indication can be indicated to a UE by a network via an RRC signaling, a MAC CE, or a DCI signaling.
  • the mapping indication can indicate the order of more than one SRS resource for the port mapping, in an ascending or descending order of the SRS resource ID (index) , or in an ascending or descending order of the number (or count) of ports configured for SRS resources
  • the mapping indication can indicate the order of more than one SRS resource for port mapping, e.g., in an ascending or descending order of SRS resource ID (index) .
  • the mapping indication can indicate a mapping relation between SRS ports and PUSCH port among more than one predefined mapping relations.
  • the predefined mapping relations can include 6 cases as shown in the table below.
  • Mapping index 0 means SRS port 0, 1, 2 are mapping to PUSCH ports 0, 1, 2 respectively.
  • Mapping index 5 means SRS port 0, 1, 2 are mapping to PUSCH ports 2, 1, 0 respectively.
  • a wireless device may be user equipment, mobile station, or any other wireless terminal including fixed nodes such as base stations.
  • a network device includes a base station including a next generation Node B (gNB) , enhanced Node B (eNB) , or any other device that performs as a base station.
  • gNB next generation Node B
  • eNB enhanced Node B
  • the following listing of solutions may be implemented by some preferred embodiments.
  • a method (e.g., method 700 as shown in FIG. 7) , including: receiving 710, by a user equipment (UE) from a base station (BS) , a sounding reference signal (SRS) configuration; receiving 720, by the UE from the BS, an SRI information for a PUSCH transmission; and transmitting 730, by the UE to the BS, the PUSCH transmission according to antenna ports of one or more SRS resources indicated by the SRI information.
  • UE user equipment
  • BS base station
  • SRS sounding reference signal
  • a method (e.g., method 800 as shown in FIG. 8) , including: transmitting 810, by a base station (BS) to a user equipment (UE) , a sounding reference signal (SRS) configuration; transmitting 820, by the BS to the UE, an SRI information for a PUSCH transmission; and receiving 830, by the BS from the UE, the PUSCH transmission.
  • BS base station
  • UE user equipment
  • SRS sounding reference signal
  • the SRI information indicates one SRS resource which is configured with 4 ports; in response to 3 transmit antenna ports being determined by the UE; an SRS transmission related to the one indicated SRS resource is transmitted by the UE using 3 ports, and a transmit resource for the SRS transmission is determined based on a 4-port SRS pattern and a selection information.
  • the transmit resource for the SRS transmission includes at least one of a time domain resource, a frequency domain resource, a code domain resource, an orthogonal frequency-division multiplexing (OFDM) symbol index, a slot index, a comb offset, or a cyclic shift.
  • OFDM orthogonal frequency-division multiplexing
  • the SRI information indicates one SRS resource which is configured with 4 ports; and an SRS transmission related to the one indicated SRS resource is transmitted by the UE using 4 ports.
  • the selection information is predefined, or indicated by a DCI signaling, or an RRC signaling; or the selection information indicates that 1 port among the 4 ports of the 4-port SRS pattern is excluded from the PUSCH transmission or SRS transmission, or that 3 ports of the 4 ports of 4-port SRS pattern are involved in the PUSCH transmission or SRS transmission.
  • the SRI information indicates one SRS resource which is configured with 3 ports; and at least one of: an SRS transmission related to the one indicated SRS resource is transmitted by the UE using 3 ports; or the PUSCH transmission is transmitted using same 3 ports as the one SRS resource indicated by the SRI information.
  • the SRS transmission and the PUSCH transmission can be determined independently.
  • the SRI information indicates more than one SRS resource which is configured with a sum of 3 ports; and at least one of: an SRS transmission is transmitted by the UE using the sum of 3 ports of the more than one SRS resource; or the PUSCH transmission is transmitted using same 3 ports of the more than one SRS resource indicated by the SRI information.
  • the more than one SRS resource includes two SRS resources, one in the two SRS resources is configured with one port, and the other one in the two SRS resources is configured with two ports.
  • the more than one SRS resource includes three SRS resources, and each one of the three SRS resources is configured with one port.
  • the more than one SRS resource is configured to share one or more frequency domain parameters including at least one of a comb offset, a comb number, a frequency hopping parameter, or a partial frequency hopping parameter.
  • the precoding information is indicated by a DCI signaling or by an RRC signaling, or in which the precoding information indicates one or more precoders, or in which the precoding information includes a transmit precoding matrix indicator (TPMI) for the PUSCH transmission, and/or an indication for a number of layers for the PUSCH transmission.
  • TPMI transmit precoding matrix indicator
  • a number of ports for the precoding information is determined according to a number of ports for the one SRS resource indicated for the PUSCH transmission, or according to a sum of numbers of ports for the more than one SRS resource indicated for the PUSCH transmission.
  • mapping between SRS ports and PUSCH ports is determined as: for more than one SRS resource associated with the PUSCH transmission, SRS ports with the following order are mapped to PUSCH ports in an ascending order: ports in one SRS resource in an ascending order, and then SRS resources in an ascending order; and the SRS resources order is determined by an SRS resource index, an SRS resource identification, an SRS resource indicator, or an SRS resources order indicated by the SRI information.
  • mapping between SRS ports and PUSCH ports is determined according to a mapping indication; the mapping indication indicating an order of more than one SRS resource for port mapping, or the mapping indication indicating a mapping relation between SRS ports and PUSCH ports among more than one predefined mapping relations.
  • mapping indication is indicated to the UE by the BS via an RRC signaling, a MAC CE, or a DCI signaling.
  • a wireless communication device including at least one processor configured to perform the method recited in any one or more of solutions 1-34.
  • One or more non-transitory computer-readable media storing computer-executable instructions that, when executed by one or more processors of a wireless communication device, cause the device to perform the method of any one of claims 1-34.
  • the present document discloses techniques that can be embodied in various embodiments to allow a UE-triggered reporting of beam report information.
  • events for beam reporting are defined based on measurement quality variation monitoring among beams at different time instances/beam groups or for different channels/RSs.
  • the beam reporting would be triggered if any of the pre-defined events occurs.
  • the event-triggered beam report is initiated by the UE on demand, the reporting latency and uplink reporting resource consumption can be greatly reduced compared with the conventional beam report method.
  • the disclosed and other embodiments, modules and the functional operations described in this document can be implemented in digital electronic circuitry, or in computer software, firmware, or hardware, including the structures disclosed in this document and their structural equivalents, or in combinations of one or more of them.
  • the disclosed and other embodiments can be implemented as one or more computer program products, i.e., one or more modules of computer program instructions encoded on a computer readable medium for execution by, or to control the operation of, data processing apparatus.
  • the computer readable medium can be a machine-readable storage device, a machine-readable storage substrate, a memory device, a composition of matter effecting a machine-readable propagated signal, or a combination of one or more them.
  • data processing apparatus encompasses all apparatus, devices, and machines for processing data, including by way of example a programmable processor, a computer, or multiple processors or computers.
  • the apparatus can include, in addition to hardware, code that creates an execution environment for the computer program in question, e.g., code that constitutes processor firmware, a protocol stack, a database management system, an operating system, or a combination of one or more of them.
  • a propagated signal is an artificially generated signal, e.g., a machine-generated electrical, optical, or electromagnetic signal, that is generated to encode information for transmission to suitable receiver apparatus.
  • a computer program (also known as a program, software, software application, script, or code) can be written in any form of programming language, including compiled or interpreted languages, and it can be deployed in any form, including as a stand-alone program or as a module, component, subroutine, or other unit suitable for use in a computing environment.
  • a computer program does not necessarily correspond to a file in a file system.
  • a program can be stored in a portion of a file that holds other programs or data (e.g., one or more scripts stored in a markup language document) , in a single file dedicated to the program in question, or in multiple coordinated files (e.g., files that store one or more modules, sub programs, or portions of code) .
  • a computer program can be deployed to be executed on one computer or on multiple computers that are located at one site or distributed across multiple sites and interconnected by a communication network.
  • the processes and logic flows described in this document can be performed by one or more programmable processors executing one or more computer programs to perform functions by operating on input data and generating output.
  • the processes and logic flows can also be performed by, and apparatus can also be implemented as, special purpose logic circuitry, e.g., an FPGA (field programmable gate array) or an ASIC (application specific integrated circuit) .
  • processors suitable for the execution of a computer program include, by way of example, both general and special purpose microprocessors, and any one or more processors of any kind of digital computer.
  • a processor will receive instructions and data from a read only memory or a random-access memory or both.
  • the essential elements of a computer are a processor for performing instructions and one or more memory devices for storing instructions and data.
  • a computer will also include, or be operatively coupled to receive data from or transfer data to, or both, one or more mass storage devices for storing data, e.g., magnetic, magneto optical disks, or optical disks.
  • mass storage devices for storing data, e.g., magnetic, magneto optical disks, or optical disks.
  • a computer need not have such devices.
  • Computer readable media suitable for storing computer program instructions and data include all forms of non-volatile memory, media and memory devices, including by way of example semiconductor memory devices, e.g., EPROM, EEPROM, and flash memory devices; magnetic disks, e.g., internal hard disks or removable disks; magneto optical disks; and CD ROM and DVD-ROM disks.
  • semiconductor memory devices e.g., EPROM, EEPROM, and flash memory devices
  • magnetic disks e.g., internal hard disks or removable disks
  • magneto optical disks e.g., CD ROM and DVD-ROM disks.
  • the processor and the memory can be supplemented by, or incorporated in, special purpose logic circuitry.
  • a computer-readable medium may include removable and non-removable storage devices including, but not limited to, Read Only Memory (ROM) , Random Access Memory (RAM) , compact discs (CDs) , digital versatile discs (DVD) , etc. Therefore, the computer-readable media can include a non-transitory storage media.
  • program modules may include routines, programs, objects, components, data structures, etc. that perform particular tasks or implement particular abstract data types.
  • Computer-or processor-executable instructions, associated data structures, and program modules represent examples of program code for executing steps of the methods disclosed herein. The particular sequence of such executable instructions or associated data structures represents examples of corresponding acts for implementing the functions described in such steps or processes.
  • a hardware circuit implementation can include discrete analog and/or digital components that are, for example, integrated as part of a printed circuit board.
  • the disclosed components or modules can be implemented as an Application Specific Integrated Circuit (ASIC) and/or as a Field Programmable Gate Array (FPGA) device.
  • ASIC Application Specific Integrated Circuit
  • FPGA Field Programmable Gate Array
  • DSP digital signal processor
  • the various components or sub-components within each module may be implemented in software, hardware or firmware.
  • the connectivity between the modules and/or components within the modules may be provided using any one of the connectivity methods and media that is known in the art, including, but not limited to, communications over the Internet, wired, or wireless networks using the appropriate protocols.

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

Abstract

Les techniques de la présente invention concernent des configurations de signal de référence de sondage (SRS) pour prendre en charge une transmission en liaison montante à trois ports. Un exemple de procédé de communication sans fil comprend : la réception, par un équipement utilisateur (UE) à partir d'une station de base (BS), d'une configuration de signal de référence de sondage (SRS) ; la réception, par l'UE à partir de la BS, d'une information SRI pour une transmission PUSCH ; et la transmission, par l'UE à la BS, de la transmission PUSCH en fonction des ports d'antenne d'une ou plusieurs ressources SRS indiquées par l'information SRI.
PCT/CN2023/139307 2023-12-15 2023-12-15 Configuration de signal de référence de sondage pour transmission en liaison montante à trois ports Pending WO2025123376A1 (fr)

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PCT/CN2023/139307 WO2025123376A1 (fr) 2023-12-15 2023-12-15 Configuration de signal de référence de sondage pour transmission en liaison montante à trois ports

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PCT/CN2023/139307 WO2025123376A1 (fr) 2023-12-15 2023-12-15 Configuration de signal de référence de sondage pour transmission en liaison montante à trois ports

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190190747A1 (en) * 2017-05-04 2019-06-20 Lg Electronics Inc. Method and Apparatus for Uplink Transmission and Reception in a Wireless Communication System
CN110999476A (zh) * 2017-08-11 2020-04-10 高通股份有限公司 在上行链路非基于码本的传输中的传输秩和预编码器信令
CN111164905A (zh) * 2017-10-02 2020-05-15 瑞典爱立信有限公司 高效的srs资源指示方法
CN114501629A (zh) * 2020-10-23 2022-05-13 维沃移动通信有限公司 资源配置方法、装置、设备及可读存储介质

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190190747A1 (en) * 2017-05-04 2019-06-20 Lg Electronics Inc. Method and Apparatus for Uplink Transmission and Reception in a Wireless Communication System
CN110999476A (zh) * 2017-08-11 2020-04-10 高通股份有限公司 在上行链路非基于码本的传输中的传输秩和预编码器信令
CN111164905A (zh) * 2017-10-02 2020-05-15 瑞典爱立信有限公司 高效的srs资源指示方法
CN114501629A (zh) * 2020-10-23 2022-05-13 维沃移动通信有限公司 资源配置方法、装置、设备及可读存储介质

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