CN113518460B - Method, apparatus, device and storage medium for processing physical channel transmission - Google Patents

Method, apparatus, device and storage medium for processing physical channel transmission Download PDF

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Publication number
CN113518460B
CN113518460B CN202010274878.XA CN202010274878A CN113518460B CN 113518460 B CN113518460 B CN 113518460B CN 202010274878 A CN202010274878 A CN 202010274878A CN 113518460 B CN113518460 B CN 113518460B
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transmission
pusch
physical channel
pusch transmission
type
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CN113518460A (en
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王钰华
王化磊
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Spreadtrum Semiconductor Nanjing Co Ltd
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Spreadtrum Semiconductor Nanjing Co Ltd
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Priority to PCT/CN2021/085241 priority patent/WO2021204078A1/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signaling, i.e. of overhead other than pilot signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling

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

Abstract

The embodiment of the application discloses a method, a device, equipment and a storage medium for processing physical channel transmission, wherein the method for processing physical channel transmission comprises the steps of obtaining the residual times of real physical channel transmission, judging whether TCI states corresponding to the two times of real physical channel transmission are the same or not if the residual times are two times, and enabling another TCI state configured at a higher layer to correspond to the second real physical channel transmission in the two times of real physical channel transmission if the TCI states corresponding to the two times of real physical channel transmission are the same. The technical scheme of the embodiment of the application can avoid transmission only facing one TRP so as to obtain the gain based on two TRP transmissions.

Description

Method, apparatus, device and storage medium for processing physical channel transmission
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for processing physical channel transmission, a base station device, a user equipment, and a storage medium.
Background
In order to enhance reliability and robustness of wireless Transmission, a multiple Transmission Reception Point (referred to as "multiple-TRP" for short) is introduced into a 5G NR (New Radio), and the TRP performs air interface Transmission with the ue. In a multi-TRP transmission scenario, multiple TRPs may serve one user equipment simultaneously and perform data transmission.
The multi-TRP transmission may include both multi-DCI (multi-DCI based, in which DCI is an abbreviation of Downlink Control Information) transmission and single-DCI (single-DCI based) transmission.
In the case of multi-DCI based transmission, two base station devices may respectively serve as one TRP, and the two TRPs may be sent separately in real time with no interaction therebetween, and the user equipment may distinguish which TRP the DCI received at this time belongs to according to an associated higher layer parameter in a control resource set (hereinafter referred to as "coreset") where each DCI is located.
In the case of single-DCI based Transmission, two base station devices may respectively serve as one TRP, and exchange information between them in time, so that DCI may be transmitted through one TRP, where the DCI includes control information that needs to be issued by two base stations, for example, at this time, one codeword of a Transmission Configuration Indication field in the DCI may correspond to two Transmission Configuration Indication states (abbreviated as "TCI states") that respectively indicate a direction in which a user equipment receives a beam (beam) of a Physical Downlink Shared Channel (abbreviated as "PDSCH") or a direction in which the user equipment transmits a beam (beam) of a Physical Uplink Shared Channel (abbreviated as "PUSCH").
In the scenario of multi-TRP transmission URLLC traffic, PDSCH repetition (PDSCH repetition) and PUSCH repetition (PUSCH repetition) are involved.
Regarding PDSCH retransmission, PDSCH retransmission in different time slots (slots) is described in PDSCH repetition scheme 4(PDSCH retransmission scheme 4) of Release (Release)16 of the third Generation Partnership Project (3rd Generation Partnership Project, abbreviated as "3 GPP"), and specific configurations include that two TCI states are indicated in a Transmission configuration indication field in DCI, and that a retransmission nurr 16 (indicating the number of times of PDSCH retransmission) is included in a PDSCH-time domain resource allocation field, and that DMRS ports indicated by an Antenna Port(s) field are from the same group. According to the configuration of time domain resources, the PDSCH is transmitted on the same symbol position on different slots.
The TCI mapping of multi-TRP PDSCH repeption may be configured as cycmaping or SeqMapping.
SeqMapping indicates that the first TCI state maps the first PDSCH transmission and the second PDSCH transmission, the second TCI state maps the third PDSCH transmission and the fourth PDSCH transmission, and the first TCI state and the second TCI state map the remaining PDSCH transmissions in this manner.
As shown in fig. 1, TCI state1 maps the first PDSCH transmission (which is within slot n) and the second PDSCH transmission (which is within slot n + 1), and TCI state 2 maps the third PDSCH transmission (which is within slot n + 2) and the fourth PDSCH transmission (which is within slot n + 3), embodying the SeqMapping of TCI state.
CycMapping indicates that the first and second TCI states map the first and second PDSCH transmissions, respectively, and that the first and second TCI states map the remaining PDSCH transmissions in this manner.
As shown in fig. 2, TCI state1 maps the first PDSCH transmission (within slot n) and the third PDSCH transmission (within slot n + 2), and TCI state 2 maps the second PDSCH transmission (within slot n + 1) and the fourth PDSCH transmission (within slot n + 3), embodying the cycmap ping of TCI state.
Regarding PUSCH repetition, it includes PUSCH repetition type a (PUSCH repetition type a) and PUSCH repetition type b (PUSCH repetition type b).
The 3GPP Release 15 describes a PUSCH repetition type a, and the number of times of PUSCH retransmission can be configured by a higher-layer parameter PUSCH-aggregation factor, and the PUSCH is transmitted at the same symbol position on different slots.
The 3GPP Release 16 describes PUSCH repetition type a and PUSCH repetition type B, for which the number of times of PUSCH repetition can be dynamically indicated by a table of the TDRA, and the PUSCH is transmitted on the same symbol position on different slots. For PUSCH retransmission type B, the nominal transmission number of PUSCH retransmission may be dynamically indicated by a table of the TDRA. With respect to the transmission location of the time domain resource, the TDRA indicates the location of the time domain of the first nominal transmission, the latter transmission immediately following the former transmission; when a downlink symbol, slot boundary (slot boundary), or invalid symbol (invalid symbol) is encountered, the nominal transmission is split into actual transmissions.
The TCI mapping of multi-TRP PUSCH repetition type a may be configured as SeqMapping or CycMapping. Wherein SeqMapping indicates that the first TCI state maps the first PUSCH transmission and the second PUSCH transmission, the second TCI state maps the third PUSCH transmission and the fourth PUSCH transmission, and the first TCI state and the second TCI state map the remaining PUSCH transmissions in this manner; CycMapping indicates that the first and second TCI states map the first and second PUSCH transmissions, respectively, and the first and second TCI states map the remaining PUSCH transmissions in this manner.
The TCI mapping of multi-TRP PUSCH repetition type B is based on the actually transmitted segments.
As shown in fig. 3, one transmission of PUSCH starts from the 3rd symbol, i.e., S ═ 3; the number of Nominal repetitions is 2, i.e., K2, for the first Nominal transmission (Nominal rep.1) and the second Nominal transmission (Nominal rep.2), respectively; a nominal repetition has a symbol length L of 6 symbols, i.e., L ═ 6. Wherein, the nominal transmission is divided by a downlink symbol (denoted by "D" in the figure) and a slot boundary to obtain 4 actual transmissions, which are: actual Rep.1, Actual Rep.2, Actual Rep.3, and Actual Rep.4.
In multi-TRP PDSCH retransmission, there may be a drop (dropping) of PDSCH transmission; similarly, in multi-TRP PUSCH retransmission, there may be dropping of PUSCH transmissions. However, the prior art does not take into account the need to increase transmission gain in these dropping scenarios.
Disclosure of Invention
The invention solves the technical problem that transmission gain needs to be improved when PDSCH transmission and PUSCH transmission dropping in a multi-TRP scene.
To solve the foregoing technical problem, an embodiment of the present invention provides a method for a user equipment to process physical channel transmission, including: acquiring the residual times of real physical channel transmission; if the remaining times are two, judging whether TCI states corresponding to the two times of real physical channel transmission are the same; and if the TCI states corresponding to the two times of real physical channel transmission are the same, enabling another TCI state configured by the higher layer to correspond to the second real physical channel transmission in the two times of real physical channel transmission.
Optionally, the physical channel is a PDSCH, the physical channel transmission is a PDSCH transmission, and the actual physical channel transmission is an actual PDSCH transmission.
Optionally, the real PDSCH transmission includes a PDSCH transmission excluding at least an uplink symbol collision among the PDSCH transmissions.
Optionally, the real PDSCH transmission further includes a PDSCH transmission that is removed from the PDSCH transmission and may be discarded due to collision with a downlink transmission channel in the time domain.
Optionally, the real PDSCH transmission further includes a PDSCH transmission excluding a PDSCH transmission that may be discarded due to a collision with a reference signal or an uplink transmission channel in a time domain.
Optionally, the method comprises: receiving a true PDSCH transmission based on a correspondence of a TCI state to the true PDSCH transmission.
Optionally, the physical channel is a PUSCH, the physical channel transmission is a PUSCH transmission, and the actual physical channel transmission is an actual PUSCH transmission.
Optionally, the PUSCH transmission includes a first type PUSCH transmission belonging to PUSCH repetition type a, the real PUSCH transmission includes a real first type PUSCH transmission, and the real first type PUSCH transmission includes a PUSCH transmission of the first type PUSCH transmission that at least removes collision with a downlink symbol.
Optionally, the PUSCH transmission includes a PUSCH transmission of a first type belonging to PUSCH repetition type a, the real PUSCH transmission includes a real PUSCH transmission of a first type, and the real PUSCH transmission of the first type further includes a PUSCH transmission of the first type excluding a PUSCH transmission which may be dropped due to a collision with an uplink transmission channel in a time domain.
Optionally, the PUSCH transmission includes a first type PUSCH transmission belonging to PUSCH repetition type a, the real PUSCH transmission further includes a real first type PUSCH transmission, and the real first type PUSCH transmission further includes a PUSCH transmission in the first type PUSCH transmission, which is removed from the PUSCH transmission, where the PUSCH transmission may be dropped due to a collision with a reference signal or a downlink transmission channel in a time domain.
Optionally, the PUSCH transmission includes a PUSCH transmission of a second type belonging to PUSCH repetition type B, the real PUSCH transmission includes a real PUSCH transmission of the second type, and the real PUSCH transmission of the second type includes a PUSCH transmission divided into at least one symbol in length.
Optionally, the PUSCH transmission includes a PUSCH transmission of a second type belonging to PUSCH retransmission type B, the real PUSCH transmission includes a real PUSCH transmission of the second type, and the real PUSCH transmission of the second type further includes an actual PUSCH transmission of the second type excluding a PUSCH transmission which may be dropped due to a collision with an uplink transmission channel in a time domain.
Optionally, the PUSCH transmission includes a PUSCH transmission of a second type belonging to PUSCH retransmission type B, the real PUSCH transmission includes a real PUSCH transmission of the second type, and the real PUSCH transmission of the second type further includes a PUSCH transmission of the second type that is discarded due to a collision with a reference signal or a downlink transmission channel in a time domain.
Optionally, the second type of PUSCH transmission includes a Configured grant PUSCH transmission, and the real second type of PUSCH transmission further includes an actual PUSCH transmission discarded by removing at least downlink symbol collision with a flexible symbol in a higher-layer Configured dynamic SFI in the Configured PUSCH transmission.
Optionally, the method comprises: the true PUSCH transmission is sent based on the correspondence of the TCI state and the true PUSCH transmission.
The embodiment of the present invention further provides a user equipment, which includes a memory and a processor, where the memory stores a computer instruction capable of running on the processor, and the processor executes the steps of the method for processing physical channel transmission by the user equipment when executing the computer instruction.
The embodiment of the present invention further provides a storage medium, on which computer instructions are stored, and when the computer instructions are executed, the steps of the method for processing physical channel transmission by user equipment are executed.
An embodiment of the present invention further provides a device for processing physical channel transmission by a user equipment, including: a first obtaining module, adapted to obtain a remaining number of actual physical channel transmissions; the first judgment module is suitable for judging whether TCI states corresponding to the two times of real physical channel transmission are the same or not if the remaining times are two times; a first corresponding module, adapted to make another TCI state configured by a higher layer correspond to a second real physical channel transmission in the second real physical channel transmission if the TCI states corresponding to the second real physical channel transmission are the same.
Optionally, the physical channel is a PDSCH, the physical channel transmission is a PDSCH transmission, and the actual physical channel transmission is an actual PDSCH transmission.
Optionally, the real PDSCH transmission includes a PDSCH transmission excluding at least an uplink symbol collision among the PDSCH transmissions.
Optionally, the real PDSCH transmission further includes a PDSCH transmission that is removed from the PDSCH transmission and may be discarded due to collision with a downlink transmission channel in the time domain.
Optionally, the real PDSCH transmission further includes a PDSCH transmission excluding a PDSCH transmission that may be discarded due to a collision with a reference signal or an uplink transmission channel in a time domain.
Optionally, the apparatus comprises a first receiving module adapted to receive a real PDSCH transmission based on a correspondence of a TCI state to the real PDSCH transmission.
Optionally, the physical channel is a PUSCH, the physical channel transmission is a PUSCH transmission, and the actual physical channel transmission is an actual PUSCH transmission.
Optionally, the PUSCH transmission includes a first type PUSCH transmission belonging to PUSCH repetition type a, the real PUSCH transmission includes a real first type PUSCH transmission, and the real first type PUSCH transmission includes a PUSCH transmission of the first type PUSCH transmission that at least removes collision with a downlink symbol.
Optionally, the PUSCH transmission includes a PUSCH transmission of a first type belonging to PUSCH repetition type a, the real PUSCH transmission includes a real PUSCH transmission of a first type, and the real PUSCH transmission of the first type further includes a PUSCH transmission of the first type excluding a PUSCH transmission which may be dropped due to a collision with an uplink transmission channel in a time domain.
Optionally, the PUSCH transmissions include a first type PUSCH transmission belonging to PUSCH repetition type a, the true PUSCH transmissions further include a true first type PUSCH transmission, and the true first type PUSCH transmissions further include PUSCH transmissions in the first type PUSCH transmission excluding PUSCH transmissions that may be dropped due to collision with a reference signal or a downlink transmission channel in a time domain.
Optionally, the PUSCH transmission includes a PUSCH transmission of a second type belonging to PUSCH repetition type B, the real PUSCH transmission includes a real PUSCH transmission of the second type, and the real PUSCH transmission of the second type includes a PUSCH transmission divided into at least one symbol in length.
Optionally, the PUSCH transmission includes a PUSCH transmission of a second type belonging to PUSCH retransmission type B, the real PUSCH transmission includes a real PUSCH transmission of the second type, and the real PUSCH transmission of the second type further includes an actual PUSCH transmission of the second type excluding a PUSCH transmission which may be dropped due to a collision with an uplink transmission channel in a time domain.
Optionally, the PUSCH transmission includes a PUSCH transmission of a second type belonging to PUSCH retransmission type B, the real PUSCH transmission includes a real PUSCH transmission of the second type, and the real PUSCH transmission of the second type further includes a PUSCH transmission of the second type that is discarded due to a collision with a reference signal or a downlink transmission channel in a time domain.
Optionally, the second type of PUSCH transmission includes a Configured grant PUSCH transmission, and the real second type of PUSCH transmission further includes an actual PUSCH transmission discarded by removing at least downlink symbol collision with a flexible symbol in a higher-layer Configured dynamic SFI in the Configured PUSCH transmission.
Optionally, the apparatus comprises a first transmitting module adapted to transmit the real PUSCH transmission based on a correspondence of the TCI state to the real PUSCH transmission.
The embodiment of the invention also provides a method for processing physical channel transmission by the base station equipment, which comprises the following steps: acquiring the residual times of real physical channel transmission; if the residual times are two times, judging whether TCI states corresponding to the two times of real physical channel transmission are the same; and if the TCI states corresponding to the two times of real physical channel transmission are the same, enabling another TCI state configured by the higher layer to correspond to the second real physical channel transmission in the two times of real physical channel transmission.
Optionally, the physical channel is a PDSCH, the physical channel transmission is a PDSCH transmission, and the actual physical channel transmission is an actual PDSCH transmission.
Optionally, the real PDSCH transmission includes a PDSCH transmission excluding at least an uplink symbol collision among the PDSCH transmissions.
Optionally, the real PDSCH transmission further includes PDSCH transmission that is removed from the downlink transmission channel and may be discarded due to collision in the time domain.
Optionally, the real PDSCH transmission further includes a PDSCH transmission excluding a PDSCH transmission that may be discarded due to a collision with a reference signal or an uplink transmission channel in a time domain.
Optionally, the method comprises: the true PDSCH transmission is sent based on the TCI state correspondence with the true PDSCH transmission.
Optionally, the physical channel is a PUSCH, the physical channel transmission is a PUSCH transmission, and the actual physical channel transmission is an actual PUSCH transmission.
Optionally, the PUSCH transmission includes a first type PUSCH transmission belonging to PUSCH repetition type a, the real PUSCH transmission includes a real first type PUSCH transmission, and the real first type PUSCH transmission includes a PUSCH transmission of the first type PUSCH transmission that at least removes collision with a downlink symbol.
Optionally, the PUSCH transmission includes a PUSCH transmission of a first type belonging to PUSCH repetition type a, the real PUSCH transmission includes a real PUSCH transmission of a first type, and the real PUSCH transmission of the first type further includes a PUSCH transmission of the first type excluding a PUSCH transmission which may be dropped due to a collision with an uplink transmission channel in a time domain.
Optionally, the PUSCH transmission includes a first type PUSCH transmission belonging to PUSCH repetition type a, the real PUSCH transmission further includes a real first type PUSCH transmission, and the real first type PUSCH transmission further includes a PUSCH transmission in the first type PUSCH transmission, which is removed from the PUSCH transmission, where the PUSCH transmission may be dropped due to a collision with a reference signal or a downlink transmission channel in a time domain.
Optionally, the PUSCH transmission includes a PUSCH transmission of a second type belonging to PUSCH repetition type B, the real PUSCH transmission includes a real PUSCH transmission of the second type, and the real PUSCH transmission of the second type includes a PUSCH transmission divided into at least one symbol in length.
Optionally, the PUSCH transmission includes a second type PUSCH transmission belonging to PUSCH repetition type B, the real PUSCH transmission includes a real second type PUSCH transmission, and the real second type PUSCH transmission further includes an actual PUSCH transmission in the second type PUSCH transmission, which may be dropped except for collision with an uplink transmission channel in a time domain.
Optionally, the PUSCH transmission includes a PUSCH transmission of a second type belonging to PUSCH retransmission type B, the real PUSCH transmission includes a real PUSCH transmission of the second type, and the real PUSCH transmission of the second type further includes a PUSCH transmission of the second type that is discarded due to a collision with a reference signal or a downlink transmission channel in a time domain.
Optionally, the second type of PUSCH transmission includes a Configured grant PUSCH transmission, and the real second type of PUSCH transmission further includes an actual PUSCH transmission discarded by removing at least downlink symbol collision with a flexible symbol in a higher-layer Configured dynamic SFI in the Configured PUSCH transmission.
Optionally, the method comprises: a true PUSCH transmission is received based on a correspondence of a TCI state with the true PUSCH transmission.
The embodiment of the present invention further provides a base station device, which includes a memory and a processor, where the memory stores computer instructions executable on the processor, and the processor executes the steps of the method for processing physical channel transmission by the base station device when executing the computer instructions.
The embodiment of the present invention further provides a storage medium, where computer instructions are stored, and when the computer instructions are executed, the method for processing physical channel transmission by a base station device is executed.
The embodiment of the present invention further provides a device for processing physical channel transmission by base station equipment, including: a second obtaining module, adapted to obtain a remaining number of actual physical channel transmissions; the second judging module is suitable for judging whether TCI states corresponding to the two times of real physical channel transmission are the same or not if the remaining times are two times; and a second corresponding module, adapted to make another TCI state configured at a higher layer correspond to a second real physical channel transmission in the second real physical channel transmission if the TCI states corresponding to the second real physical channel transmission are the same.
Optionally, the physical channel is a PDSCH, the physical channel transmission is a PDSCH transmission, and the actual physical channel transmission is an actual PDSCH transmission.
Optionally, the true PDSCH transmission includes at least a PDSCH transmission excluding uplink symbol collisions from the PDSCH transmission.
Optionally, the real PDSCH transmission further includes a PDSCH transmission that is removed from the PDSCH transmission and may be discarded due to collision with a downlink transmission channel in the time domain.
Optionally, the real PDSCH transmission further includes a PDSCH transmission excluding a PDSCH transmission that may be discarded due to a collision with a reference signal or an uplink transmission channel in a time domain.
Optionally, the apparatus comprises a second transmitting module adapted to transmit a real PDSCH transmission based on a correspondence of a TCI state to the real PDSCH transmission.
Optionally, the physical channel is a PUSCH, the physical channel transmission is a PUSCH transmission, and the actual physical channel transmission is an actual PUSCH transmission.
Optionally, the PUSCH transmission includes a first type PUSCH transmission belonging to PUSCH repetition type a, the real PUSCH transmission includes a real first type PUSCH transmission, and the real first type PUSCH transmission includes a PUSCH transmission of the first type PUSCH transmission that at least removes collision with a downlink symbol.
Optionally, the PUSCH transmission includes a PUSCH transmission of a first type belonging to PUSCH repetition type a, the real PUSCH transmission includes a real PUSCH transmission of a first type, and the real PUSCH transmission of the first type further includes a PUSCH transmission of the first type excluding a PUSCH transmission which may be dropped due to a collision with an uplink transmission channel in a time domain.
Optionally, the PUSCH transmission includes a first type PUSCH transmission belonging to PUSCH repetition type a, the real PUSCH transmission further includes a real first type PUSCH transmission, and the real first type PUSCH transmission further includes a PUSCH transmission in the first type PUSCH transmission, which is removed from the PUSCH transmission, where the PUSCH transmission may be dropped due to a collision with a reference signal or a downlink transmission channel in a time domain.
Optionally, the PUSCH transmission includes a PUSCH transmission of a second type belonging to PUSCH repetition type B, the real PUSCH transmission includes a real PUSCH transmission of the second type, and the real PUSCH transmission of the second type includes a PUSCH transmission divided into at least one symbol in length.
Optionally, the PUSCH transmission includes a PUSCH transmission of a second type belonging to PUSCH retransmission type B, the real PUSCH transmission includes a real PUSCH transmission of the second type, and the real PUSCH transmission of the second type further includes an actual PUSCH transmission of the second type excluding a PUSCH transmission which may be dropped due to a collision with an uplink transmission channel in a time domain.
Optionally, the PUSCH transmission includes a PUSCH transmission of a second type belonging to PUSCH retransmission type B, the real PUSCH transmission includes a real PUSCH transmission of the second type, and the real PUSCH transmission of the second type further includes a PUSCH transmission of the second type that is discarded due to a collision with a reference signal or a downlink transmission channel in a time domain.
Optionally, the second type of PUSCH transmission includes a Configured grant PUSCH transmission, and the real second type of PUSCH transmission further includes an actual PUSCH transmission discarded by removing at least downlink symbol collision with a flexible symbol in a higher-layer Configured dynamic SFI in the Configured PUSCH transmission.
Optionally, the apparatus comprises a second receiving module adapted to receive a true PUSCH transmission based on a correspondence of a TCI state to the true PUSCH transmission.
Compared with the prior art, the technical scheme of the embodiment of the invention has the following beneficial effects. For example, when the real PDSCH transmission or PUSCH transmission remains twice, if the TCI state corresponding to the real PDSCH transmission or PUSCH transmission is the same, another TCI state configured in a higher layer is made to correspond to the second real transmission, so as to avoid transmission only facing the same TRP, so as to obtain a gain based on two TRP transmissions.
Drawings
FIG. 1 is a diagram of prior art multi-TRP PDSCH repeptitation based on Seqmapping TCI mapping;
FIG. 2 is a diagram of a prior art multi-TRP PDSCH repeptitation CycAmping based TCI mapping;
fig. 3 is a diagram of a prior art notional PUSCH transmission split into actual transmissions;
fig. 4 is a diagram illustrating a PDSCH transmission colliding with an uplink transmission resource in the prior art;
fig. 5 is a flowchart of a method for a ue to process a physical channel transmission according to an embodiment of the present invention;
fig. 6 is a diagram illustrating configuring a second real PDSCH transmission according to a first embodiment of the present invention;
fig. 7 is a diagram illustrating configuring a second real PDSCH transmission according to the second embodiment of the present invention;
fig. 8 is a diagram illustrating configuring a second real PUSCH transmission in a third embodiment of the present invention;
fig. 9 is a diagram illustrating configuring a second real PUSCH transmission in the fourth embodiment of the present invention;
fig. 10 is a diagram illustrating configuring a second real PUSCH transmission according to a fifth embodiment of the present invention;
fig. 11 is a diagram illustrating configuring a second real PUSCH transmission in a sixth embodiment of the present invention;
fig. 12 is a schematic structural diagram of an apparatus for processing physical channel transmission by a user equipment according to an embodiment of the present invention;
fig. 13 is a flowchart of a method for a base station device to process physical channel transmission according to an embodiment of the present invention;
fig. 14 is a schematic structural diagram of an apparatus for processing physical channel transmission by a base station device according to an embodiment of the present invention.
Detailed Description
In multi-TRP PDSCH retransmission, there are a number of situations where one or more PDSCH transmissions may be dropped or removed (drop). The PDSCH transmission remaining valid after dropping may be referred to as a true PDSCH transmission.
For example, a PDSCH transmission that may be dropped and collided with an uplink symbol, a PDSCH transmission that may be dropped and collided with a downlink transmission channel in the time domain (e.g., if the priority of the PDSCH is lower than the priority of the downlink transmission channel, the PDSCH is dropped; if the PDSCH is a PDSCH without PDCCH scheduling and collided with other PDSCH without PDCCH scheduling in the time domain, and the higher level parameter sps-ConfigIndex corresponding to the PDSCH corresponds to a higher flag, the PDSCH is also dropped), a PDSCH transmission that may be dropped and collided with a reference signal or an uplink transmission channel in the time domain; these remaining valid PDSCH transmissions after drop may be referred to as true PDSCH transmissions.
As shown in fig. 4, in the two slots of slot n +2 and slot n +3, there are 1 and 2 uplink symbols (denoted by U), respectively, then the PDSCH on these two slots can be dropped; the effective PDSCH transmission in the two slots, slot n and slot n +1, remaining after drop is the true PDSCH transmission.
In multi-TRP PUSCH retransmission, there are a number of situations where one or more PUSCH transmissions may be dropped. The remaining valid PUSCH transmission after dropping may be referred to as a true PUSCH transmission.
For example, for a PUSCH transmission belonging to a PUSCH repetition type a, a PUSCH transmission may be dropped with a drop colliding with a downlink symbol, a PUSCH transmission may be dropped with an uplink transmission channel colliding with a downlink symbol in a time domain (e.g., if a PUSCH collides with a PUCCH which is repeatedly transmitted in a time domain, the PUSCH may be dropped), and a PUSCH transmission may be dropped with a reference signal or a downlink transmission channel colliding with a downlink symbol in a time domain.
For another example, for the second type PUSCH transmission belonging to PUSCH retransmission type B, the nominal repetition of the PUSCH may be divided into several actual transmissions by downlink symbols, slot boundary or invalid symbol; the drop may be split into PUSCH transmissions of one symbol in length, the drop may collide with an uplink transmission channel in the time domain and discard the PUSCH transmission (e.g., the PUSCH may be discarded if the PUSCH collides with a repeatedly transmitted PUCCH in the time domain), and the drop may collide with a reference signal or a downlink transmission channel in the time domain and discard the PUSCH transmission.
For another example, the second type of PUSCH transmission belonging to PUSCH retransmission type B includes Configured grant PUSCH transmission (i.e., semi-static PUSCH transmission and semi-persistent PUSCH transmission), and for Configured grant PUSCH transmission, actual PUSCH transmission may be dropped by a drop colliding with a downlink symbol in a dynamic (dynamic) slot format indicator (SFI for short) Configured in a higher layer or a flexible symbol.
The remaining valid PUSCH transmission after dropping may be referred to as a true PUSCH transmission.
As shown in fig. 3, the Nominal transmission of PUSCH includes Nominal rep.1 and Nominal rep.2, which are divided by downlink symbols D and slot boundary to obtain 4 Actual transmissions, Actual rep.1, Actual rep.2, Actual rep.3 and Actual rep.4, wherein the length of Actual rep.4 is only one symbol, and thus, Actual rep.4 can be dropped; the remaining valid 3 Actual transmissions after drop, Actual rep.1, Actual rep.2 and Actual rep.3, may be referred to as true PUSCH transmissions.
The prior art maps TCIs in a circular mapping manner (e.g., cycmaping, SeqMapping). In the case of the remaining secondary transmission (e.g., secondary PDSCH transmission or secondary PUSCH transmission), the remaining secondary transmission should be applied to different TCIs based on the cyclic mapping scheme.
However, PDSCH transmission or PUSCH transmission may be dropped, and in the real transmission valid after the drop, the remaining two real transmissions may correspond to the same TCI, i.e., the remaining two real transmissions face the same TRP, e.g., both transmissions are from the same TRP or both transmissions are sent to the same TRP, so that a gain based on two TRP transmissions cannot be obtained.
In the embodiment of the present invention, it may be determined whether the TCI states corresponding to the remaining two real transmissions are the same, and if the TCI states are the same, another TCI state configured in a higher layer is made to correspond to the second real transmission in the two real transmissions, so that the remaining two real transmissions are from the transmissions of two TRPs, so as to obtain a transmission gain.
Embodiments of the present invention may be applicable to a multi-TRP scenario in which a base station apparatus may have a plurality of TRPs, each serving as a different TRP.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Fig. 5 is a flow chart of a method 100 for a ue to process a physical channel transmission according to an embodiment of the present invention.
The physical channel may be a PDSCH or a PUSCH. The physical channel transmission may be a PDSCH transmission or a PUSCH transmission.
The initial physical channel transmission may be an initial PDSCH transmission or an initial PUSCH transmission, which is an initial configuration without drop transmission; if there is a case of a notional repetition of PUSCH being split, the initial PUSCH transmission is an actual PUSCH transmission that is split and not dropped.
The real physical channel transmission may be a real PDSCH transmission or a real PUSCH transmission. With respect to true PDSCH transmissions and true PUSCH transmissions, reference may be made to the description above.
The method 100 comprises:
step S110: acquiring the residual times of real physical channel transmission;
step S120: if the residual times are two times, judging whether TCI states corresponding to the two times of real physical channel transmission are the same;
step S130: and if the TCI states corresponding to the two times of real physical channel transmission are the same, enabling another TCI state configured by the higher layer to correspond to the second real physical channel transmission in the two times of real physical channel transmission.
Steps S110, S120 and S130 are performed at the user equipment.
In the execution of step S110, the initial physical channel repetition may include a plurality of times, and the TCI mapping of the initial physical channel repetition may be based on cycmaping, SeqMapping, and the like. The true physical channel transmission is available after the initial physical channel repetition that drop is not available.
During the process of physical channel transmission, the remaining number of times of real physical channel transmission can be dynamically acquired.
If the remaining number of times is two, step S120 is performed.
In the execution of step S120, it is determined whether the TCI state corresponding to the two real physical channel transmissions is the same.
In a specific implementation, the base station apparatus may send DCI on a Physical Downlink Control Channel (PDCCH for short), instruct, through a TCI state in the DCI, the user equipment to receive a beam used by a PDSCH transmission or send a PUSCH transmission, where the beams indicated by different TCI states may correspond to different TRPs; the user equipment may receive the TCI state in the higher layer signaling.
If the TCI state corresponding to the two times of real physical channel transmission is the same, step S130 is performed.
Wherein, the TCI states corresponding to the secondary real physical channel transmissions indicate the same, and the ue receives PDSCH transmissions using the same beam, for example, receives secondary real PDSCH transmissions from one TRP using the same beam; alternatively, the user equipment sends the PUSCH transmission using the same beam, e.g., sends the twice real PUSCH transmission to one TRP using the same beam.
In the execution of step S130, another TCI state configured at a higher layer is made to correspond to the second real physical channel transmission in the second real physical channel transmission.
Among them, the "same TCI state" as the judgment condition in step S120 may be referred to as "one TCI state" which is different from the "another TCI state" described above.
The base station apparatus may transmit DCI on the PDCCH, and an indication of two different TCI states may be included in the DCI. The user equipment can receive the DCI to obtain different TCI states and their corresponding relationships to the real physical channel transmission.
Specifically, the higher layer may configure two different TCI states corresponding to different beams that the user equipment may use when receiving PDSCH transmission or sending PUSCH transmission, and the different beams correspond to different TRPs.
At the base station device, after configuring the correspondence of the TCI state with the real PDSCH transmission, it may send the real PDSCH transmission or receive the real PUSCH transmission based on the correspondence, where the real PDSCH transmission or the real PUSCH transmission has the configured correspondence, which also instructs the user equipment to receive the PDSCH transmission based on the beam determined by the correspondence; it may also receive a true PUSCH transmission based on the correspondence, where the PUSCH transmission issued by the user equipment sends a PUSCH transmission to a corresponding TRP based on the beam determined by the correspondence.
At the user equipment, higher layer signaling may be received to obtain different TCI states and their corresponding relationships to PDSCH transmissions or PUSCH transmissions. The user equipment may receive or send a real physical channel transmission based on the correspondence. For example, a true PDSCH transmission may be received from a corresponding TRP based on a beam determined by the correspondence of TCI state to true PDSCH transmission; the true PUSCH transmission may also be transmitted to the corresponding TRP based on the beam determined by the correspondence of the TCI state and the true PUSCH transmission.
By making the remaining two-time true PDSCH transmission or PUSCH transmission correspond to two different TCI states, the user equipment can receive PDSCH transmission or transmit PUSCH transmission based on different beams, so that gain based on two TRP transmissions can be obtained.
The following description is given in conjunction with specific embodiments.
Example one
The initial PDSCH repetition may include multiple times, and the TCI mapping of the initial PDSCH repetition is based on SeqMapping.
Fig. 6 illustrates the last 4 initial PDSCH transmissions, which are located on four slots, slot n +1, slot n +2, and slot n +3, respectively.
As shown in fig. 6a, 2 initial PDSCH transmissions on slot n +2 and slot n +3 slots have uplink symbols (denoted as "U"), then the PDSCH on these two slots can be dropped; two true PDSCH transmissions are obtained after the initial PDSCH transmission where drop is unavailable, which are located on slot n and slot n +1 slots, respectively. The two real PDSCH transmissions correspond to the same TCI state (illustrated as TCI state 1).
A PDSCH transmission on a slot n slot may be referred to as a first true PDSCH transmission and a PDSCH transmission on a slot n +1 slot may be referred to as a second true PDSCH transmission.
As shown in fig. 6b, 2 initial PDSCH transmissions on slot n +2 and slot n +3 slots are dropped (as indicated by the symbol "X" in the figure). When it is determined that the remaining number of true PDSCH transmissions is 2 and their corresponding TCI states are the same (both TCI states 1), another TCI state configured by a higher layer (such as TCI state 2 illustrated in the figure) may be made to correspond to a second true PDSCH transmission.
Example two
The initial PDSCH repetition may include multiple times, the TCI mapping of the initial PDSCH repetition being based on CycMapping.
Fig. 7 illustrates the last 4 initial PDSCH transmissions, which are located on four slots, slot n +1, slot n +2, and slot n +3, respectively.
As shown in fig. 7a, 2 initial PDSCH transmissions on slot n +1 and slot n +3 slots have uplink symbols (denoted as "U"), then the PDSCH on these two slots can be dropped; two true PDSCH transmissions are obtained after the initial PDSCH transmission where drop is unavailable, which are located on slot n and slot n +2 slots, respectively. The two real PDSCH transmissions correspond to the same TCI state (illustrated as TCI state 1).
A PDSCH transmission on slot n slot may be referred to as a first true PDSCH transmission and a PDSCH transmission on slot n +2 slot may be referred to as a second true PDSCH transmission.
As shown in fig. 7b, 2 initial PDSCH transmissions on slot n +1 and slot n +3 slots are dropped (as indicated by the symbol "X" in the figure). When it is determined that the remaining number of true PDSCH transmissions is 2 and their corresponding TCI states are the same (both TCI states 1), another TCI state configured by a higher layer (such as TCI state 2 illustrated in the figure) may be made to correspond to a second true PDSCH transmission.
EXAMPLE III
The PUSCH repetition belongs to PUSCH repetition type a.
The initial PUSCH repetition may comprise multiple times, the TCI mapping of the initial PUSCH repetition being based on SeqMapping.
Fig. 8 illustrates the last 4 initial PUSCH transmissions, which are located on four slots, slot n +1, slot n +2, and slot n +3, respectively.
As shown in fig. 8a, 2 initial PUSCH transmissions on slot n +2 and slot n +3 slots have downlink symbols (denoted "D"), then the PUSCH on these two slots may be dropped; two true PUSCH transmissions are obtained after the initial PUSCH transmission for which drop is unavailable, which are located on slot n and slot n +1 slots, respectively. These two real PUSCH transmissions correspond to the same TCI state (as illustrated in the figure as TCI state 1).
A PUSCH transmission on a slot n slot may be referred to as a first true PUSCH transmission and a PUSCH transmission on a slot n +1 slot may be referred to as a second true PUSCH transmission.
As shown in fig. 8b, 2 initial PUSCH transmissions on slot n +2 and slot n +3 slots are dropped (as indicated by the symbol "X" in the figure). When it is determined that the remaining number of true PUSCH transmissions is 2 and their corresponding TCI states are the same (both TCI states 1), another TCI state configured by a higher layer (such as TCI state 2 illustrated in the figure) may be made to correspond to a second true PUSCH transmission.
Example four
The PUSCH repetition belongs to PUSCH repetition type a.
The initial PUSCH repetition may comprise multiple times, the TCI mapping of the initial PUSCH repetition being based on cycmappping.
Fig. 9 illustrates the last 4 initial PUSCH transmissions, which are located on four slots, slot n +1, slot n +2, and slot n +3, respectively.
As shown in fig. 9a, 2 initial PUSCH transmissions on slot n +1 and slot n +3 slots have downlink symbols (denoted with "D"), then the PUSCH on these two slots can be dropped; two true PUSCH transmissions are obtained after the initial PUSCH transmission for which drop is unavailable, which are located on slot n and slot n +2 slots, respectively. These two real PUSCH transmissions correspond to the same TCI state (as illustrated in the figure as TCI state 1).
A PUSCH transmission on a slot n slot may be referred to as a first true PUSCH transmission and a PUSCH transmission on a slot n +2 slot may be referred to as a second true PUSCH transmission.
As shown in fig. 9b, 2 initial PUSCH transmissions on slot n +1 and slot n +3 slots are dropped (as indicated by the symbol "X" in the figure). When it is determined that the remaining number of true PUSCH transmissions is 2 and their corresponding TCI states are the same (both TCI states 1), another TCI state configured by a higher layer (such as TCI state 2 illustrated in the figure) may be made to correspond to a second true PUSCH transmission.
EXAMPLE five
The PUSCH repetition belongs to PUSCH repetition type B.
Fig. 10 illustrates the Nominal transmission of 2 PUSCHs (Nominal rep.1 and Nominal rep.2). After being divided by downlink symbols (as indicated by symbol "D" in the figure) and slot boundary, 4 actual transmissions (which may also be referred to as initial PUSCH repetitions) are obtained.
As shown in fig. 10a, the initial PUSCH repetition includes Actual rep.1, Actual rep.2, Actual rep.3, and Actual rep.4; the TCI mapping for the initial PUSCH repetition is based on SeqMapping, i.e. Actual rep.1 and Actual rep.2 correspond to TCI state1 and Actual rep.3 and Actual rep.4 correspond to TCI state 2. Since both Actual Rep.3 and Actual Rep.4 have only one symbol, they can be dropped; two real PUSCH transmissions (i.e., Actual rep.1 and Actual rep.2) are obtained after the initial PUSCH transmission (i.e., Actual rep.3 and Actual rep.4) for which drop is not available. These two real PUSCH transmissions correspond to the same TCI state (as illustrated in the figure as TCI state 1).
Actual rep.1 may be referred to as the first real PUSCH transmission and Actual rep.2 as the second real PUSCH transmission.
As shown in fig. 10b, the 2 initial PUSCH transmissions, Actual rep.3 and Actual rep.4, are dropped (as indicated by the symbol "X" in the figure). When it is determined that the remaining number of true PUSCH transmissions is 2 (i.e., Actual rep.1 and Actual rep.2) and their corresponding TCI states are the same (both TCI states 1), another TCI state (TCI state 2 as illustrated in the figure) of the higher configuration may be made to correspond to a second true PUSCH transmission.
EXAMPLE six
The PUSCH repetition belongs to PUSCH repetition type B.
Fig. 11 illustrates a Nominal transmission of 1 PUSCH (Nominal rep.1). After being divided by downlink symbols (as indicated by symbol "D" in the figure) and slot boundary, 3 actual transmissions (which may also be referred to as initial PUSCH repetitions) are obtained.
As shown in fig. 11a, the initial PUSCH repetition includes Actual rep.1, Actual rep.2, and Actual rep.3; the initial PUSCH repeated TCI mapping is based on CycMapping, i.e. Actual rep.1 and Actual rep.3 correspond to TCI state1 and Actual rep.2 corresponds to TCI state 2. Since Actual Rep.2 has only one symbol, it can be dropped; two real PUSCH transmissions (i.e., Actual rep.1 and Actual rep.3) are obtained after the initial PUSCH transmission (i.e., Actual rep.2) that drop is unavailable. These two true PUSCH transmissions correspond to the same TCI state (as illustrated in the figure as TCI state 1).
Actual rep.1 may be referred to as the first real PUSCH transmission and Actual rep.3 as the second real PUSCH transmission.
As shown in fig. 11b, the initial PUSCH transmission of Actual rep.2 is dropped (as indicated by the symbol "X" in the figure). When it is determined that the remaining number of true PUSCH transmissions is 2 (i.e., Actual rep.1 and Actual rep.3) and their corresponding TCI states are the same (both TCI state1), another TCI state (such as TCI state 2 illustrated in the figure) configured at a higher layer may be made to correspond to a second true PUSCH transmission.
The embodiment of the invention also discloses a storage medium, on which computer instructions are stored, and when the computer instructions are operated, the relevant steps in the methods described above with reference to fig. 5 to 11 and the like are executed.
The storage medium may include ROM, RAM, magnetic or optical disks, or the like. The storage medium may further include a non-volatile (non-volatile) memory or a non-transitory (non-transient) memory, etc.
The embodiment of the invention also discloses user equipment, which comprises a memory and a processor, wherein the memory is stored with computer instructions capable of running on the processor, and the processor executes the relevant steps in the method described above with reference to fig. 5 to 11 and the like when executing the computer instructions.
The user equipment includes, but is not limited to, user equipment of a 4G system, user equipment of a 5G system, and user equipment in a PLMN system of future evolution, for example: an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a user agent, a user equipment, a communication terminal related to Session Initiation Protocol (SIP), a communication terminal related to h.323 Protocol, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a computing device, a communication terminal connected to a Wireless modem, a vehicle-mounted communication device, a wearable communication device, and an IoT (Internet of Things) device.
The embodiment of the invention also discloses a device for processing the physical channel transmission by the user equipment.
As shown in fig. 12, the apparatus 200 for processing physical channel transmission by a user equipment includes a first obtaining module 210, a first determining module 220 and a first corresponding module 230. The first obtaining module 210 is adapted to obtain the remaining number of real physical channel transmissions; the first determining module 220 is adapted to determine whether the TCI states corresponding to the two times of real physical channel transmission are the same if the remaining number of times is two; the first corresponding module 230 is adapted to make another TCI state configured by a higher layer correspond to a second real physical channel transmission in the second real physical channel transmission if the TCI states corresponding to the second real physical channel transmission are the same.
In a specific implementation, the physical channel may be a PDSCH, the physical channel transmission may be a PDSCH transmission, and the actual physical channel transmission may be an actual PDSCH transmission.
In particular implementations, the real PDSCH transmissions may include PDSCH transmissions that are at least removed from collision with uplink symbols. The real PDSCH transmission may also include a PDSCH transmission that is removed from the PDSCH transmission and may be discarded due to a collision with a downlink transmission channel in the time domain. The real PDSCH transmission may also include a PDSCH transmission excluding a PDSCH transmission that may be discarded due to a collision with a reference signal or an uplink transmission channel in the time domain.
In a specific implementation, the apparatus 200 may include a first receiving module adapted to receive a true PDSCH transmission based on a correspondence of a TCI state to the true PDSCH transmission.
In a specific implementation, the physical channel may be a PUSCH, the physical channel transmission may be a PUSCH transmission, and the actual physical channel transmission may be an actual PUSCH transmission.
In particular implementations, the PUSCH transmissions may include PUSCH transmissions of a first type belonging to PUSCH retransmission type a, and the real PUSCH transmissions may include PUSCH transmissions of a real first type. The true first type PUSCH transmission may include a PUSCH transmission of the first type PUSCH transmission with at least a collision with a downlink symbol removed. The true first-class PUSCH transmission may also include a PUSCH transmission of the first-class PUSCH transmission excluding a PUSCH transmission that may be dropped due to a collision with an uplink transmission channel in the time domain. The true PUSCH transmission of the first type may also include PUSCH transmissions in the first type that may be dropped due to a collision with a reference signal or downlink transmission channel in the time domain.
In particular implementations, the PUSCH transmission may include a PUSCH transmission of a second type belonging to PUSCH retransmission type B, and the real PUSCH transmission may include a real PUSCH transmission of the second type. The true second type PUSCH transmission may include a PUSCH transmission of the second type PUSCH transmission, which is segmented into at least one symbol in length. The actual PUSCH transmission of the second type may also include the actual PUSCH transmission of the second type with the PUSCH transmission colliding with the uplink transmission channel in the time domain and possibly being dropped. The actual second-type PUSCH transmission may also include a PUSCH transmission of the second-type PUSCH transmission excluding a PUSCH transmission that may be dropped due to a collision with a reference signal or a downlink transmission channel in the time domain.
In a specific implementation, the second-type PUSCH transmission may include a Configured grant PUSCH transmission, and the real second-type PUSCH transmission may further include an actual PUSCH transmission discarded by removing at least downlink symbols or flexible symbol collisions in a Configured dynamic SFI of a higher layer in the Configured PUSCH transmission.
In a specific implementation, the apparatus 200 may include a first transmitting module adapted to transmit a true PUSCH transmission based on a correspondence of a TCI state to the true PUSCH transmission.
In a specific implementation, all modules and relationships thereof in the apparatus 200 may refer to the related descriptions in the methods described above with reference to fig. 5 to 11 and the like in the embodiments of the present invention, and are not described herein again.
Fig. 13 is a flowchart of a method 300 for a base station device to process physical channel transmission according to an embodiment of the present invention.
The physical channel may be a PDSCH or a PUSCH. The physical channel transmission may be a PDSCH transmission or a PUSCH transmission.
The initial physical channel transmission may be an initial PDSCH transmission or an initial PUSCH transmission, which is an initial configuration without a drop transmission; if there is a case of a notional repetition of PUSCH being split, the initial PUSCH transmission is an actual PUSCH transmission that is split and not dropped.
The real physical channel transmission may be a real PDSCH transmission or a real PUSCH transmission. With respect to true PDSCH transmissions and true PUSCH transmissions, reference may be made to the description above.
The method 300 includes:
step S310: acquiring the residual times of real physical channel transmission;
step S320: if the residual times are two times, judging whether TCI states corresponding to the two times of real physical channel transmission are the same;
step S330: and if the TCI states corresponding to the two times of real physical channel transmission are the same, enabling another TCI state configured by the higher layer to correspond to the second real physical channel transmission in the two times of real physical channel transmission.
Steps S310, S320, and S330 are performed at the base station apparatus.
In the execution of step S310, the initial physical channel repetition may include a plurality of times, and the TCI mapping of the initial physical channel repetition may be based on cycmaping, SeqMapping, and the like. True physical channel transmission can be obtained after the repetition of the initial physical channel where drop is not available.
During the physical channel transmission process, the real remaining number of times of physical channel transmission can be dynamically obtained.
If the remaining number of times is two, step S320 is performed.
In the execution of step S320, it is determined whether the TCI states corresponding to the two real physical channel transmissions are the same.
In a specific implementation, the base station apparatus may send DCI on a Physical Downlink Control Channel (PDCCH for short), instruct, through a TCI state in the DCI, the user equipment to receive a beam used by a PDSCH transmission or send a PUSCH transmission, where the beams indicated by different TCI states may correspond to different TRPs; the user equipment may receive the TCI state in the higher layer signaling.
If the TCI state corresponding to the two times of real physical channel transmission is the same, step S330 is performed.
Wherein, the TCI states corresponding to the secondary real physical channel transmissions indicate the same, and the ue receives PDSCH transmissions using the same beam, for example, receives secondary real PDSCH transmissions from one TRP using the same beam; alternatively, the user equipment sends the PUSCH transmission using the same beam, e.g., sends the twice real PUSCH transmission to one TRP using the same beam.
In the execution of step S330, another TCI state configured by the higher layer is made to correspond to the second real physical channel transmission in the second real physical channel transmission.
Here, the "same TCI state" as the judgment condition in step S320 may be referred to as "one TCI state" which is different from the "another TCI state" described above.
The base station apparatus may transmit DCI on the PDCCH, and an indication of two different TCI states may be included in the DCI. The user equipment can receive the DCI to obtain different TCI states and their corresponding relationships to the real physical channel transmission.
Specifically, the higher layer may configure two different TCI states corresponding to different beams that the user equipment may use when receiving a PDSCH transmission or sending a PUSCH transmission, and the different beams correspond to different TRPs.
At the base station device, having configured a correspondence of TCI state with real PDSCH transmission, it may send real PDSCH transmission or receive real PUSCH transmission based on the correspondence, where real PDSCH transmission or real PUSCH transmission has a configured correspondence, which also instructs the user equipment to receive PDSCH transmission based on beam determined by the correspondence; it may also receive a true PUSCH transmission based on the correspondence, where the PUSCH transmission issued by the user equipment sends a PUSCH transmission to a corresponding TRP based on the beam determined by the correspondence.
At the user equipment, higher layer signaling may be received to obtain different TCI states and their corresponding relationships to PDSCH transmissions or PUSCH transmissions. The user equipment may receive or send a real physical channel transmission based on the correspondence. For example, a true PDSCH transmission may be received from a corresponding TRP based on a beam determined by the correspondence of TCI state to true PDSCH transmission; the true PUSCH transmission may also be transmitted to the corresponding TRP based on the beam determined by the correspondence of the TCI state and the true PUSCH transmission.
By making the remaining two-time true PDSCH transmission or PUSCH transmission correspond to two different TCI states, the user equipment can receive PDSCH transmission or transmit PUSCH transmission based on different beams, so that gain based on two TRP transmissions can be obtained.
The method 300 may be implemented as described above in conjunction with fig. 5-11, etc., in embodiments of the present invention.
The embodiment of the invention also discloses another storage medium, on which computer instructions are stored, and when the computer instructions are executed, the relevant steps in the method described above with reference to fig. 13 and the like are executed.
The storage medium may include ROM, RAM, magnetic or optical disks, or the like. The storage medium may further include a non-volatile (non-volatile) memory or a non-transitory (non-transient) memory, etc.
The embodiment of the invention also discloses base station equipment, which comprises a memory and a processor, wherein the memory is stored with computer instructions capable of running on the processor, and the processor executes the relevant steps in the method in combination with the method shown in fig. 13 and the like when executing the computer instructions.
The base station apparatus may be a device deployed in a Radio Access Network (RAN) to provide wireless communication functions, including but not limited to user equipment of a 4G system, user equipment of a 5G system, and an apparatus providing base station functions in a PLMN system for future evolution, such as: the device providing the Base Station function in the 2G network includes a Base Transceiver Station (BTS) for short, the device providing the Base Station function in the 3G network includes a node B (NodeB), the device providing the Base Station function in the 4G network includes an evolved node B (eNB for short), the device providing the Base Station function in a Wireless Local Area Network (WLAN) for short (i.e., Access Point (AP) for short), and the device providing the Base Station function in the 5G NR, a ngb for continuing evolution (ng-eNB), and the like.
The embodiment of the invention also discloses a device for processing the physical channel transmission by the base station equipment.
As shown in fig. 14, the apparatus 400 for processing physical channel transmission by a base station device includes a second obtaining module 410, a second determining module 420 and a second corresponding module 430. The second obtaining module 410 is adapted to obtain the remaining number of real physical channel transmissions; the second determining module 420 is adapted to determine whether the TCI state corresponding to the two times of real physical channel transmission is the same if the remaining number of times is two; the second corresponding module 430 is adapted to make another TCI state configured at a higher layer correspond to the second real physical channel transmission in the second real physical channel transmission if the TCI states corresponding to the second real physical channel transmission are the same.
In a specific implementation, the physical channel may be a PDSCH, the physical channel transmission may be a PDSCH transmission, and the actual physical channel transmission may be an actual PDSCH transmission.
In particular implementations, the real PDSCH transmissions may include PDSCH transmissions that are at least removed from collision with uplink symbols. The real PDSCH transmission may also include a PDSCH transmission that is removed from the PDSCH transmission and may be discarded due to a collision with a downlink transmission channel in the time domain. The real PDSCH transmission may also include a PDSCH transmission excluding a PDSCH transmission that may be discarded due to a collision with a reference signal or an uplink transmission channel in the time domain.
In a specific implementation, the apparatus 400 may include a second transmitting module adapted to transmit a real PDSCH transmission based on a correspondence of a TCI state to the real PDSCH transmission.
In a specific implementation, the physical channel may be a PUSCH, the physical channel transmission may be a PUSCH transmission, and the actual physical channel transmission may be an actual PUSCH transmission.
In particular implementations, the PUSCH transmissions may include PUSCH transmissions of a first type belonging to PUSCH retransmission type a, and the real PUSCH transmissions may include PUSCH transmissions of a real first type. The true first type PUSCH transmission may include a PUSCH transmission of the first type PUSCH transmission with at least a collision with a downlink symbol removed. The true first-class PUSCH transmission may also include a PUSCH transmission of the first-class PUSCH transmission excluding a PUSCH transmission that may be dropped due to a collision with an uplink transmission channel in the time domain. The true PUSCH transmission of the first class may also include PUSCH transmissions in the PUSCH transmission of the first class that may be dropped due to collision with a reference signal or downlink transmission channel in the time domain.
In particular implementations, the PUSCH transmission may include a PUSCH transmission of a second type belonging to PUSCH retransmission type B, and the real PUSCH transmission may include a real PUSCH transmission of the second type. The true PUSCH transmission of the second type may include PUSCH transmissions of the second type that are segmented into at least one symbol in length. The actual PUSCH transmission of the second type may also include PUSCH transmission of the second type excluding actual PUSCH transmission that may be dropped due to collision with an uplink transmission channel in the time domain. The actual second-type PUSCH transmission may also include a PUSCH transmission of the second-type PUSCH transmission excluding a PUSCH transmission that may be dropped due to a collision with a reference signal or a downlink transmission channel in the time domain.
In a specific implementation, the second-type PUSCH transmission may include a Configured grant PUSCH transmission, and the real second-type PUSCH transmission may further include an actual PUSCH transmission discarded by removing at least downlink symbols or flexible symbol collisions in a Configured dynamic SFI of a higher layer in the Configured PUSCH transmission.
In a specific implementation, the apparatus 400 may include a second receiving module adapted to receive a true PUSCH transmission based on a correspondence of a TCI state to the true PUSCH transmission.
In a specific implementation, all modules and relationships thereof in the apparatus 400 may refer to the related descriptions in the method described above with reference to fig. 13 and the like in the embodiments of the present invention, and are not described herein again.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (40)

1. A method for a user equipment to process physical channel transmissions, comprising:
acquiring the residual times of real physical channel transmission;
if the residual times are two times, judging whether TCI states corresponding to the two times of real physical channel transmission are the same or not;
and if the TCI states corresponding to the two times of real physical channel transmission are the same, enabling another TCI state configured by the higher layer to correspond to the second real physical channel transmission in the two times of real physical channel transmission.
2. The method of claim 1, wherein the physical channel is a PDSCH, wherein the physical channel transmission is a PDSCH transmission, and wherein the actual physical channel transmission is an actual PDSCH transmission.
3. The method of claim 2, wherein the true PDSCH transmissions comprise at least one of the PDSCH transmissions excluding uplink symbol collisions.
4. A method according to claim 2 or 3, comprising: receiving the real PDSCH transmission based on a correspondence of a TCI state to the real PDSCH transmission.
5. The method of claim 1, wherein the physical channel is a PUSCH, wherein the physical channel transmission is a PUSCH transmission, and wherein the actual physical channel transmission is an actual PUSCH transmission.
6. The method of claim 5, wherein the PUSCH transmissions comprise a first type PUSCH transmission belonging to a PUSCH repeption type A, wherein the true PUSCH transmission comprises a true first type PUSCH transmission, and wherein the true first type PUSCH transmission comprises a PUSCH transmission of the first type PUSCH transmission that is at least removed from collision with downlink symbols.
7. The method of claim 5, wherein the PUSCH transmission comprises a PUSCH of a second type belonging to PUSCH retransmission type B, wherein the true PUSCH transmission comprises a true PUSCH of the second type, and wherein the true PUSCH transmission comprises a PUSCH transmission of the second type divided into at least one symbol in length.
8. The method of claim 7, wherein the second type of PUSCH transmission comprises a Configured granted grant PUSCH transmission, and wherein the actual second type of PUSCH transmission further comprises an actual PUSCH transmission of the Configured grant PUSCH transmission that is discarded except at least for downlink symbols or flexible symbol collisions with higher-layer Configured dynamic SFIs.
9. The method according to any one of claims 5 to 8, comprising: sending the real PUSCH transmission based on a correspondence of a TCI state to the real PUSCH transmission.
10. A user device comprising a memory and a processor, the memory having stored thereon computer instructions executable on the processor, wherein the processor, when executing the computer instructions, performs the steps of the method of any one of claims 1 to 9.
11. A storage medium having stored thereon computer instructions, which when executed by a processor, perform the steps of the method of any one of claims 1 to 9.
12. An apparatus for a user equipment to process physical channel transmissions, comprising:
a first obtaining module, adapted to obtain a remaining number of actual physical channel transmissions;
a first judging module, adapted to judge whether TCI states corresponding to the two times of real physical channel transmission are the same if the remaining number of times is two;
a first corresponding module, adapted to make another TCI state of a higher configuration correspond to a second real physical channel transmission in the second real physical channel transmission if the TCI states corresponding to the second real physical channel transmission are the same.
13. The apparatus of claim 12, wherein the physical channel is a PDSCH, wherein the physical channel transmission is a PDSCH transmission, and wherein the actual physical channel transmission is an actual PDSCH transmission.
14. The apparatus of claim 13, wherein the true PDSCH transmission comprises at least one of the PDSCH transmissions excluding uplink symbol collisions.
15. The apparatus according to claim 13 or 14, comprising a first receiving module adapted to receive the real PDSCH transmission based on a TCI state correspondence with the real PDSCH transmission.
16. The apparatus of claim 12, wherein the physical channel is a PUSCH, wherein the physical channel transmission is a PUSCH transmission, and wherein the actual physical channel transmission is an actual PUSCH transmission.
17. The apparatus of claim 16, wherein the PUSCH transmissions comprise a PUSCH transmission of a first type belonging to PUSCH repetition type a, wherein the true PUSCH transmission comprises a true PUSCH transmission of the first type, and wherein the true PUSCH transmission of the first type comprises a PUSCH transmission of the first type excluding at least a PUSCH transmission colliding with a downlink symbol.
18. The apparatus of claim 16, wherein the PUSCH transmission comprises a PUSCH transmission of type ii belonging to PUSCH repetition type B, wherein the true PUSCH transmission comprises a true PUSCH transmission of type ii comprising a PUSCH transmission of type ii divided into at least one symbol in length.
19. The apparatus of claim 18, wherein the second type of PUSCH transmission comprises a Configured granted grant PUSCH transmission, and wherein the true second type of PUSCH transmission further comprises an actual PUSCH transmission discarded in the Configured granted grant PUSCH transmission except at least for downlink symbol collisions or flexible symbol collisions with a higher Configured dynamic SFI.
20. The apparatus according to any of claims 16-19, comprising a first sending module adapted to send the true PUSCH transmission based on a correspondence of a TCI state with the true PUSCH transmission.
21. A method for a base station device to process physical channel transmissions, comprising:
acquiring the residual times of real physical channel transmission;
if the residual times are two times, judging whether TCI states corresponding to the two times of real physical channel transmission are the same or not;
and if the TCI states corresponding to the two times of real physical channel transmission are the same, enabling another TCI state configured by a higher layer to correspond to the second real physical channel transmission in the two times of real physical channel transmission.
22. The method of claim 21, wherein the physical channel is a PDSCH, wherein the physical channel transmission is a PDSCH transmission, and wherein the actual physical channel transmission is an actual PDSCH transmission.
23. The method of claim 22, wherein the true PDSCH transmission comprises at least one of the PDSCH transmissions excluding uplink symbol collisions.
24. The method of claim 22 or 23, comprising: sending the real PDSCH transmission based on a correspondence of TCI state to the real PDSCH transmission.
25. The method of claim 21, wherein the physical channel is a PUSCH, wherein the physical channel transmission is a PUSCH transmission, and wherein the actual physical channel transmission is an actual PUSCH transmission.
26. The method of claim 25, wherein the PUSCH transmissions comprise PUSCH transmissions of a first type belonging to PUSCH repetition type a, wherein the true PUSCH transmissions comprise PUSCH transmissions of a true first type, and wherein the true PUSCH transmissions comprise PUSCH transmissions of the first type excluding at least PUSCH transmissions that collide with downlink symbols.
27. The method of claim 25, wherein the PUSCH transmissions comprise a PUSCH transmission of type ii belonging to PUSCH repetition type B, wherein the true PUSCH transmission comprises a true PUSCH transmission of type ii comprising a PUSCH transmission of type ii divided into at least one symbol in length.
28. The method of claim 27, wherein the second type of PUSCH transmission comprises a Configured granted grant PUSCH transmission, and wherein the actual second type of PUSCH transmission further comprises an actual PUSCH transmission of the Configured grant PUSCH transmission that is discarded except at least for downlink symbols or flexible symbol collisions with higher-layer Configured dynamic SFIs.
29. The method of any one of claims 25 to 28, comprising: receiving the real PUSCH transmission based on a correspondence of TCIstate with the real PUSCH transmission.
30. A base station device comprising a memory and a processor, the memory having stored thereon computer instructions executable on the processor, wherein the processor, when executing the computer instructions, performs the steps of the method of any one of claims 21 to 29.
31. A storage medium having stored thereon computer instructions, which when executed by a processor, perform the steps of the method of any one of claims 21 to 29.
32. An apparatus for a base station device to process physical channel transmissions, comprising:
a second obtaining module, adapted to obtain a remaining number of actual physical channel transmissions;
the second judging module is suitable for judging whether TCI states corresponding to the two times of real physical channel transmission are the same or not if the remaining times are two times;
a second corresponding module, adapted to make another TCI state of the higher configuration correspond to a second real physical channel transmission in the second real physical channel transmission if the TCI states corresponding to the second real physical channel transmission are the same.
33. The apparatus of claim 32, wherein the physical channel is a PDSCH, wherein the physical channel transmission is a PDSCH transmission, and wherein the actual physical channel transmission is an actual PDSCH transmission.
34. The apparatus of claim 33, wherein the true PDSCH transmission comprises at least one of the PDSCH transmissions excluding uplink symbol collisions.
35. The apparatus of claim 33 or 34, comprising a second sending module adapted to send the real PDSCH transmission based on a TCI state correspondence with the real PDSCH transmission.
36. The apparatus of claim 32, wherein the physical channel is a PUSCH, wherein the physical channel transmission is a PUSCH transmission, and wherein the actual physical channel transmission is an actual PUSCH transmission.
37. The apparatus of claim 36, wherein the PUSCH transmissions comprise a PUSCH transmission of a first type belonging to PUSCH repetition type a, wherein the true PUSCH transmission comprises a true PUSCH transmission of the first type, and wherein the true PUSCH transmission of the first type comprises a PUSCH transmission of the first type excluding at least a PUSCH transmission colliding with a downlink symbol.
38. The apparatus of claim 36, wherein the PUSCH transmission comprises a PUSCH transmission of type ii belonging to PUSCH repetition type B, wherein the true PUSCH transmission comprises a true PUSCH transmission of type ii comprising a PUSCH transmission of type ii divided into at least one symbol in length.
39. The apparatus of claim 38, wherein the second type of PUSCH transmission comprises a Configured grant PUSCH transmission, and wherein the actual second type of PUSCH transmission further comprises an actual PUSCH transmission of the Configured grant PUSCH transmission discarded except at least for collision with downlink symbols or flexible symbols in a higher-layer Configured dynamic SFI.
40. The apparatus according to any of claims 36-39, comprising a second receiving module adapted to receive the true PUSCH transmission based on a correspondence of a TCI state to the true PUSCH transmission.
CN202010274878.XA 2020-04-09 2020-04-09 Method, apparatus, device and storage medium for processing physical channel transmission Active CN113518460B (en)

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