CN115118406A - Uplink transmission method, device and user equipment - Google Patents

Uplink transmission method, device and user equipment Download PDF

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Publication number
CN115118406A
CN115118406A CN202110310656.3A CN202110310656A CN115118406A CN 115118406 A CN115118406 A CN 115118406A CN 202110310656 A CN202110310656 A CN 202110310656A CN 115118406 A CN115118406 A CN 115118406A
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China
Prior art keywords
resource
transmission
uplink transmission
csi
uplink
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Granted
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CN202110310656.3A
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CN115118406B (en
Inventor
吴凯
李娜
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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Priority to CN202110310656.3A priority Critical patent/CN115118406B/en
Priority to PCT/CN2022/082079 priority patent/WO2022199544A1/en
Publication of CN115118406A publication Critical patent/CN115118406A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

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

Abstract

The application discloses an uplink transmission method, an uplink transmission device and user equipment, which belong to the technical field of communication, and the uplink transmission method of the embodiment of the application comprises the following steps: the UE determines whether to perform uplink transmission on the first resource according to target information, wherein the target information comprises at least one of the following items: type information of the first resource and target indication information of the CSI-RS; wherein the target indication information comprises at least one of: the CSI-RS transmission method includes first indication information and second indication information, wherein the first indication information is used for indicating transmission resources of the CSI-RS, and the second indication information is used for indicating whether the CSI-RS is transmitted or not.

Description

Uplink transmission method, device and user equipment
Technical Field
The present application belongs to the field of communications technologies, and in particular, to an uplink transmission method, an uplink transmission device, and a user equipment.
Background
Generally, a network device may configure a channel state information reference signal (CSI-RS) for a connected User Equipment (UE), so that the UE may perform functions such as time-frequency synchronization and measurement according to the received CSI-RS. Specifically, the network device may configure a corresponding transmission resource (e.g., a flexible symbol) for the CSI-RS, so as to perform transmission of the CSI-RS on the transmission resource.
However, when the UE receives the dynamic indication of the network device to perform uplink transmission, if the transmission resource for uplink transmission overlaps with the transmission resource for CSI-RS, the UE performs uplink transmission without performing reception of CSI-RS; however, since the CSI-RS is configured by the network device to the connected UE, and the connected UE still needs to receive the CSI-RS, the network device still needs to send the CSI-RS, so that when the UE still performs uplink transmission, uplink and downlink transmission may collide.
Disclosure of Invention
The embodiment of the application provides an uplink transmission method, an uplink transmission device and user equipment, which can solve the problem that uplink transmission conflicts with CSI-RS transmission.
In a first aspect, an uplink transmission method is provided, where the method includes: the UE determines whether to perform uplink transmission on the first resource according to target information, wherein the target information comprises at least one of the following items: type information of the first resource and target indication information of the CSI-RS; wherein the target indication information comprises at least one of: the CSI-RS transmission method includes first indication information and second indication information, wherein the first indication information is used for indicating transmission resources of the CSI-RS, and the second indication information is used for indicating whether the CSI-RS is transmitted or not.
In a second aspect, an uplink transmission apparatus is provided, where the uplink transmission apparatus includes: and determining a module. The determining module is configured to determine whether to perform uplink transmission on the first resource according to target information, where the target information includes at least one of: type information of the first resource and target indication information of the CSI-RS. Wherein the target indication information comprises at least one of: the CSI-RS transmission method includes first indication information and second indication information, wherein the first indication information is used for indicating transmission resources of the CSI-RS, and the second indication information is used for indicating whether the CSI-RS is transmitted or not.
In a third aspect, a UE is provided, comprising a processor, a memory, and a program or instructions stored on the memory and executable on the processor, which when executed by the processor, implement the steps of the method according to the first aspect.
In a fourth aspect, a UE is provided, which includes a processor and a communication interface, where the processor is configured to determine whether to perform uplink transmission on a first resource according to target information, and the target information includes at least one of: type information of the first resource and target indication information of the CSI-RS. Wherein the target indication information comprises at least one of: the CSI-RS transmission method includes first indication information and second indication information, wherein the first indication information is used for indicating transmission resources of the CSI-RS, and the second indication information is used for indicating whether the CSI-RS is transmitted or not.
In a fifth aspect, there is provided a readable storage medium on which a program or instructions are stored, which program or instructions, when executed by a processor, implement the steps of the method according to the first aspect.
In a sixth aspect, a chip is provided, the chip comprising a processor and a communication interface, the communication interface being coupled to the processor, the processor being configured to execute a program or instructions to implement the method according to the first aspect.
In a seventh aspect, a computer program/program product stored on a non-volatile storage medium is provided, which program/program product is executable by at least one processor to implement the steps of the upstream transmission method according to the first aspect.
In this embodiment, the UE may determine whether to perform uplink transmission on the first resource according to target information, where the target information includes at least one of: type information of the first resource and target indication information of the CSI-RS. When uplink transmission and CSI-RS transmission are carried out, the UE determines whether uplink transmission is carried out on the first resource according to the type information of the first resource and/or the indication information of the CSI-RS, namely the UE can determine whether the first resource is an available resource for uplink transmission according to the two information, and does not directly carry out uplink transmission on the first resource, so that the problem that the uplink transmission and the downlink transmission conflict can be avoided, the transmission of the CSI-RS can be ensured, and the transmission performance is improved.
Drawings
Fig. 1 is a schematic architecture diagram of a communication system according to an embodiment of the present application;
fig. 2 is a schematic diagram of an uplink transmission method according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of an uplink transmission apparatus according to an embodiment of the present application;
fig. 4 is a second schematic structural diagram of an uplink transmission apparatus according to an embodiment of the present application;
fig. 5 is a schematic hardware structure diagram of a UE according to an embodiment of the present disclosure;
fig. 6 is a second hardware structure diagram of a UE according to an embodiment of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present application will be described below clearly with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application are within the scope of protection of the present application.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in other sequences than those illustrated or otherwise described herein, and that the terms "first" and "second" used herein generally refer to a class and do not limit the number of objects, for example, a first object can be one or more. In addition, "and/or" in the specification and the claims means at least one of connected objects, and a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
It is noted that the techniques described in the embodiments of the present application are not limited to the Long Term Evolution (LTE)/LTE evolution (LTE-advanced) system, but may also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), single-carrier frequency-division multiple access (SC-FDMA), and other systems. The terms "system" and "network" in the embodiments of the present application"are often used interchangeably, and the described techniques may be used in both the above-mentioned systems and radio technologies, as well as in other systems and radio technologies. The following description describes a New Radio (NR) system for purposes of example, and NR terminology is used in much of the description below, but the techniques may also be applied to applications other than NR system applications, such as 6 th generation (6 th generation) th Generation, 6G) communication system.
Fig. 1 is a schematic diagram illustrating an architecture of a wireless communication system to which an embodiment of the present application is applicable. The wireless communication system includes a UE 11 and a network device 12. Wherein, the UE 11 may also be referred to as a terminal device or a terminal, the UE 11 may be a mobile phone, a tablet computer (tablet computer), a laptop computer (laptop computer) or a terminal-side device called a notebook computer, a Personal Digital Assistant (PDA), a palm-top computer, a netbook, an ultra-mobile personal computer (UMPC), a Mobile Internet Device (MID), a wearable device (wearable device) or a vehicle-mounted device (VUE), a pedestrian terminal (PUE), and the like, and the wearable device includes: smart watches, bracelets, earphones, glasses, and the like. It should be noted that the embodiment of the present application does not limit the specific type of the UE 11. The network device 12 may be a base station or a core network, wherein the base station may be referred to as a node B, an enodeb, an access point, a Base Transceiver Station (BTS), a radio base station, a radio transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a node B, an enodeb (eNB), a home nodeb, a home enodeb, a WLAN access point, a WiFi node, a Transmit Receive Point (TRP), or some other suitable terminology in the field, as long as the same technical effect is achieved, and the base station is not limited to a specific technical vocabulary, and it should be noted that only the base station in the NR system is taken as an example in the present embodiment, but the specific type of the base station is not limited.
The following explains some concepts and/or terms related to the uplink transmission method, apparatus, and user equipment provided in the embodiments of the present application.
1. Method for determining available uplink transmission resource
When determining a resource for Physical Uplink Shared Channel (PUSCH), Physical Uplink Control Channel (PUCCH) transmission or repeated transmission, determining an available uplink transmission resource in an uplink symbol (symbol) and a flexible symbol configured by a network device, and when the following conditions are satisfied, determining, by the UE, that the uplink transmission resource is the available uplink transmission resource:
(1) resources allocated to the PUSCH and the PUCCH are flexible symbols or uplink symbols;
(2) there is no Synchronization Signal Block (SSB) transmission on the flexible symbols.
If the UE receives a dynamic Slot Format Indicator (SFI) indicated by the PDCCH to indicate that the flexible symbol is a downlink symbol and a resource of the PUXCH (i.e., PUSCH or PUCCH) overlaps with the downlink symbol, the UE does not transmit the PUXCH.
2. CSI-RS configured by network equipment for idle state (idle)/inactive state (inactive) UE
Currently, the network equipment is supported to configure the CSI-RS for the idle/inactive UE, the CSI-RS is configured for the connected UE, and the network equipment can also configure the CSI-RS for the idle/inactive UE. Since the connected UE may release the connection or switch to another cell at any time, the network device may indicate, through a layer 1 indication (e.g., Paging Early Indication (PEI) or paging downlink control information (paging DCI)), to the UE whether the network device transmits the CSI-RS. And if the CSI-RS is indicated not to be transmitted, the UE does not receive the CSI-RS.
The network device may configure the CSI-RS to the idle/inactive UE through system information or RRC and other information. The PEI is indicated through a physical channel or a physical signal, and is used to indicate whether the UE needs to receive a paging PDCCH. The PEI also can carry indication information whether CSI-RS configured by the network equipment to idle/inactive UE is transmitted or not.
The uplink transmission method provided by the embodiments of the present application is described in detail below with reference to the accompanying drawings through some embodiments and application scenarios thereof.
In the prior art, if the UE receives the dynamic indication to perform uplink transmission and the uplink transmission overlaps with the symbols of CSI-RS transmission, the UE performs uplink transmission without performing CSI-RS reception. However, the CSI-RS is first the CSI-RS that the network device configures to the connected-state UEs, which still need to receive the CSI-RS, so the network device still needs to transmit the CSI-RS. If the UE still performs uplink transmission, the uplink and downlink transmissions may collide at that time. In a conventional scheme, in a case where dynamic uplink transmission and CSI-RS configured by a network device overlap on a flexible symbol, if an uplink transmission resource indicated by dynamic indication information (e.g., Downlink Control Information (DCI) or random access response uplink scheduling grant (RAR UL grant)) includes the flexible symbol and the network device configures reception of the CSI-RS on the flexible symbol, a UE does not receive the CSI-RS and transmits uplink transmission.
In the embodiment of the present application, when a network device configures a CSI-RS transmission resource, and the CSI-RS is configured on a flexible symbol/slot/subband, when determining a resource used for sending uplink transmission (for example, transmission of PUSCH and PUCCH), if the resource overlaps with the CSI-RS transmission resource, it is determined that the resource is not used for uplink transmission, that is, uplink transmission is not performed on the resource, so as to avoid collision of uplink and downlink transmissions.
The uplink transmission method provided by the embodiment of the present application is described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.
An uplink transmission method is provided in the embodiment of the present application, and fig. 2 shows a flowchart of the uplink transmission method provided in the embodiment of the present application. As shown in fig. 2, the uplink transmission method provided in the embodiment of the present application may include steps 201 and 202 described below.
Step 201, the UE acquires target information.
Step 202, the UE determines whether to perform uplink transmission on the first resource according to the target information.
In an embodiment of the present application, the target information includes at least one of: type information of the first resource and target indication information of the CSI-RS. Wherein the target indication information comprises at least one of: the CSI-RS transmission method includes first indication information and second indication information, wherein the first indication information is used for indicating transmission resources of the CSI-RS, and the second indication information is used for indicating whether the CSI-RS is transmitted or not.
In the embodiment of the present application, the network device may configure the CSI-RS to the UE (for example, an idle state/inactive state UE), and the UE may receive the CSI-RS and perform functions such as time-frequency synchronization, measurement, and Automatic Gain Control (AGC) according to the CSI-RS.
It should be noted that the embodiments of the present application may also be applied to a Tracking Reference Signal (TRS), where a TRS is an embodiment of a CSI-RS, and one TRS is formed by combining multiple CSI-RSs.
Optionally, in this embodiment of the present application, the CSI-RS may be configured by a network device through system information or Radio Resource Control (RRC) release message.
Optionally, in this embodiment of the application, the type information of the first resource includes at least one of: uplink resources, downlink resources, flexible symbols, flexible time slots, flexible subbands.
It should be noted that, the first resource may be understood as: the resource that may be used to send uplink transmission, for example, an uplink resource configured for the network device, a flexible symbol/timeslot/subband, and the like, that is, the UE needs to perform uplink transmission, and the UE may determine whether the first resource can perform uplink transmission, that is, whether a condition for performing uplink transmission is satisfied.
It should be noted that, on the flexible symbol/flexible timeslot/flexible subband, the network device may configure the UE to perform uplink transmission, and may also configure the UE to perform downlink reception; further, the network device may indicate the transmission direction of the flexible symbol/flexible timeslot/flexible subband as uplink, downlink or still flexible by using dynamic signaling, so as to indicate that no uplink transmission or downlink reception is performed on the symbols/timeslots/subbands.
Optionally, in this embodiment of the application, the first indication information is indicated by system information or indicated by a high-layer signaling.
Optionally, in this embodiment of the present application, the second indication information is transmitted through a downlink control channel (for example, a PDCCH), or is transmitted through a sequence.
Optionally, in this embodiment of the application, the second indication information may specifically be indicated by PEI or paging DCI, where the PEI is used to indicate whether the UE monitors a paging downlink control channel.
Optionally, in this embodiment of the present application, the downlink control channel is a paging downlink control channel, and the second indication information is further configured to indicate at least one of the following: the UE monitors a paging downlink control channel and the UE monitors a paging downlink data channel.
It should be noted that, the above paging downlink control channel may be understood as: a downlink control channel scrambled with a Cyclic Redundancy Check (CRC) using a paging radio network temporary identifier (P-RNTI).
Optionally, in an embodiment of the present application, the uplink transmission includes at least one of the following: transmission of an uplink data channel (e.g., PUSCH), transmission of an uplink control channel (e.g., PUCCH), transmission of a Sounding Reference Signal (SRS), and transmission of a random access channel (e.g., Physical Random Access Channel (PRACH)).
Optionally, in this embodiment of the present application, the uplink data channel is at least one of the following: an uplink data channel for repeated transmission, an uplink data channel indicated by the downlink control information DCI, an uplink shared channel configured with the grant, and an uplink data channel corresponding to the random access message (e.g., message 3 in the four-step random access procedure).
Optionally, in this embodiment of the application, the PUSCH may be at least one of the following: a PUSCH with no repeated transmission, a PUSCH with repeated transmission, a PUSCH corresponding to the message 3(Msg3) (i.e., a PUSCH carrying a random access message (i.e., Msg 3)), and a PUSCH with a configured grant (configured grant).
Optionally, in this embodiment of the application, the repeatedly transmitted PUSCH is another PUSCH except for the PUSCH of the first transmission in the K times of repeated transmission. The PUSCH corresponding to the message 3(Msg3) may be a PUSCH corresponding to Msg3 for initial transmission or retransmission.
It can be understood that, for K times of repeated transmissions, the network device ensures that at least one uplink transmission will actually be transmitted, for example, the first uplink transmission can always be ensured to be transmitted, the first uplink transmission will not be transmitted due to the transmission of the CSI-RS, and only at the uplink transmission from the second time, the UE performs the above determination, that is, determines whether to perform uplink transmission on the first resource according to the target information.
Optionally, in this embodiment of the present application, the uplink control channel is at least one of the following: an uplink control channel which is repeatedly transmitted, and an uplink data channel corresponding to a confirmation message of a random access message (for example, message 4 in a four-step random access process or message B in a two-step random access process).
Optionally, in this embodiment of the application, the PUCCH may be at least one of the following: PUCCH corresponding to non-repeat transmission PUCCH, and acknowledgement message (e.g., hybrid automatic repeat request acknowledgement message (HARQ-ACK)) of message 4(Msg 4)/message b (MsgB) (i.e., PUCCH transmitting HARQ-ACK for Msg 4/MsgB).
Optionally, in this embodiment of the present application, the PUCCH for repeated transmission is another PUCCH except the PUCCH for first transmission in the K times of repeated transmission.
Optionally, in an implementation manner of the embodiment of the present application, the target information at least includes type information of the first resource. The step 202 can be specifically realized by the step 202a described below.
Step 202a, when the first resource is the target type resource and the first resource overlaps with the transmission resource of the CSI-RS, the UE does not perform uplink transmission on the first resource.
In an embodiment of the present application, the target type resource is any one of: flexible symbols, flexible time slots, flexible subbands.
It can be appreciated that if the CSI-RS is configured on a flexible symbol/flexible slot/flexible subband and the first resource includes at least one symbol/Resource Element (RE) overlapping with the flexible symbol/flexible slot/flexible subband, the UE does not transmit uplink transmission on the first resource.
It should be noted that, the overlapping of the first resource and the transmission resource of the CSI-RS may be understood as follows: the first resource is partially overlapped or completely overlapped with a transmission resource of the CSI-RS, that is, at least one RE/Resource Block (RB)/slot/symbol in the transmission resource of the CSI-RS is the RE/RB/slot/symbol in the first resource.
In the embodiment of the present application, when the CSI-RS is configured on a flexible symbol/flexible timeslot/flexible subband, if the network device schedules uplink transmission and the resource of the uplink transmission also includes the flexible symbol where the resource of the CSI-RS is located, the UE does not perform uplink transmission on the flexible symbol/flexible timeslot/flexible subband.
Optionally, in another implementation manner of the embodiment of the present application, the target information at least includes type information of the first resource. The step 202 can be specifically realized by the step 202b described below.
Step 202b, when the first resource is an unavailable resource configured by the network device, the UE does not perform uplink transmission on the first resource.
It can be understood that if the first resource overlaps some specific resources (i.e. unavailable type resources) configured by the network device, the UE does not perform uplink transmission on the first resource, i.e. the UE does not perform uplink transmission on the unavailable type resources.
Optionally, in this embodiment, the unavailable type of resource configured by the network device may include a resource of a CSI-RS configured by the network device, for example, a flexible symbol, a flexible slot, a flexible subband, and the like.
In the embodiment of the present application, a network device configures an unavailable symbol (invalid symbol), and for uplink transmission, a UE does not perform uplink transmission on an uplink resource overlapped with the unavailable symbol. It should be noted that, for the unavailable symbol configured by the network device, part of resources (for example, part of REs, part of symbols, or part of RBs) may not be used for uplink transmission, or all resources may not be used for uplink transmission.
Optionally, in another implementation manner of the embodiment of the present application, the target information at least includes target indication information. The step 202 can be specifically realized by the step 202c described below.
Step 202c, under the condition that the target indication information indicates that the CSI-RS is transmitted on the transmission resource of the CSI-RS, the UE does not perform uplink transmission on the first resource.
In this manner, the target indication information at least includes the second indication information, that is, when the CSI-RS is transmitted on the transmission resource where the second indication information indicates the CSI-RS, the UE does not perform uplink transmission on the first resource.
In the embodiment of the application, the UE does not send uplink transmission on the first resource when the network device notifies the UE of sending the CSI-RS on the transmission resource of the CSI-RS through the second indication information.
Optionally, in this embodiment of the application, when the first resource overlaps with the transmission resource of the CSI-RS, if the UE receives the second indication information and the second indication information indicates that the CSI-RS is transmitted on the transmission resource of the CSI-RS, the UE does not perform uplink transmission on the first resource.
Optionally, in this embodiment of the application, when the first resource is a target type resource and the first resource overlaps with a transmission resource of the CSI-RS, if the UE receives the second indication information and the second indication information indicates that the CSI-RS is transmitted on the transmission resource of the CSI-RS, the UE does not perform uplink transmission on the first resource.
Optionally, in another implementation manner of the embodiment of the present application, the target information at least includes target indication information. The step 202 can be specifically realized by the following step 202 d.
Step 202d, under the condition that the target indication information indicates that the CSI-RS is not transmitted on the transmission resource of the CSI-RS, the UE carries out uplink transmission on the first resource.
In this manner, the target indication information at least includes the second indication information, that is, when the CSI-RS is not transmitted on the transmission resource where the second indication information indicates the CSI-RS, the UE performs uplink transmission on the first resource.
In the embodiment of the application, the UE sends uplink transmission on the first resource under the condition that the network equipment informs the UE of no sending of the CSI-RS on the transmission resource of the CSI-RS through the second indication information.
Optionally, in this embodiment of the application, when the first resource overlaps with the transmission resource of the CSI-RS, if the UE receives the second indication information and the second indication information indicates that the CSI-RS is not transmitted on the transmission resource of the CSI-RS, the UE performs uplink transmission on the first resource.
Optionally, in this embodiment of the present application, when the first resource is a target type resource and the first resource overlaps with a transmission resource of the CSI-RS, if the UE receives the second indication information and the second indication information indicates that the CSI-RS is not transmitted on the transmission resource of the CSI-RS, the UE performs uplink transmission on the first resource.
In the embodiment of the application, the network device may indicate whether the CSI-RS actually performs uplink transmission through paging the PDCCH or the PEI, and the UE may not perform uplink transmission on the first resource (e.g., flexible symbol/flexible slot/flexible subband) according to the indication of the network device, when the CSI-RS actually performs transmission, or the UE may still perform uplink transmission on the first resource, so as to avoid a collision problem between the uplink transmission and the CSI-RS transmission.
Optionally, in another implementation manner of the embodiment of the present application, the step 202 may be specifically implemented by a step 202e described below.
Step 202e, when the UE is not configured to receive the second indication information, the UE does not perform uplink transmission on the first resource.
In this embodiment of the application, the second indication information may be indicated by PEI or paging DCI, and if the UE is not configured with PEI or receives paging PDCCH, the UE does not perform uplink transmission on all symbols/slots/subbands of the CSI-RS configured by the network device.
The embodiment of the application avoids the problem of resource conflict of the CSI-RS configured in the uplink transmission and idle state non-activated state, ensures the transmission of the CSI-RS, enables the UE to perform time-frequency synchronization, measurement, AGC and other functions based on the CSI-RS, and improves the transmission performance.
For example, it is assumed that the transmission mode of the network device is a half-duplex mode, that is, when the time domain symbols overlap, the network device cannot transmit and receive simultaneously within the carrier frequency. If the network device supports simultaneous transmission and reception, that is, the network device may perform reception in a second subband while performing transmission in a first subband (subband) in a carrier, and if different subbands in frequency at this time include subbands with different attributes, such as a downlink subband, an uplink subband, a flexible subband, and the like (specifically, the subbands may be configured by the network device), even if CSI-RS and uplink transmission are on the same symbol at this time, the subbands may still be different and may still perform simultaneous transmission and reception, and only in the case where the symbol and the subband overlap simultaneously, the two may not perform simultaneous transmission. At this time, the PEI and the paging PDCCH may indicate whether CSI-RS is actually sent or not according to the granularity of the subband, and if there is no CSI-RS on the uplink transmission symbol and the subband, the UE may perform uplink transmission, otherwise the UE does not perform uplink transmission.
An embodiment of the present application provides an uplink transmission method, where a UE may determine whether to perform uplink transmission on a first resource according to target information, where the target information includes at least one of the following: type information of the first resource and target indication information of the CSI-RS. When uplink transmission and CSI-RS transmission are carried out, the UE determines whether uplink transmission is carried out on the first resource according to the type information of the first resource and/or the indication information of the CSI-RS, namely the UE can determine whether the first resource is an available resource for uplink transmission according to the two pieces of information, and does not directly carry out uplink transmission on the first resource, so that the problem that the uplink transmission and the downlink transmission conflict can be avoided, the transmission of the CSI-RS can be ensured, and the transmission performance is improved.
Optionally, in this embodiment of the present application, after the step 202, the uplink transmission method provided in this embodiment of the present application further includes the following step 301.
Step 301, under the condition that the UE performs K times of repeated transmission on the uplink transmission and the UE does not perform uplink transmission for the nth time, the UE ignores the nth time of uplink transmission, or the UE does not count the nth time of uplink transmission in the K times of repeated transmission.
Wherein K is an integer greater than 1, and n is a positive integer less than or equal to K.
It should be noted that the UE ignoring the nth uplink transmission may be understood as: the UE does not actually perform uplink transmission for the nth time, but counts uplink transmission for the nth time in K repeated transmissions, that is, the number of times that the UE actually performs the repeated transmission is less than K, if n is less than K, the UE continues uplink transmission for the (n + 1) th time after ignoring uplink transmission for the nth time, and so on until uplink transmission for the kth time is performed, and of course, if n is equal to K, the UE does not continue uplink transmission for the kth time after ignoring uplink transmission for the nth time, that is, ends the K repeated transmission.
It should be noted that, the UE does not count the nth uplink transmission in the K repeated transmissions may be understood as: the UE does not actually perform uplink transmission for the nth time, and does not count the uplink transmission for the nth time, that is, the number of times that the UE actually performs repeated transmission is equal to K, and the UE may continue to determine the available transmission resource to perform uplink transmission until K times of repeated transmission are performed, that is, until K times of counting is completed.
It can be appreciated that if the UE performs K >1 repeated transmissions for uplink transmissions and the transmission resource at the nth time does not transmit due to overlapping with the transmission resource of CSI-RS (e.g., flexible symbol/flexible slot/flexible subband, etc.), the UE may ignore or defer the nth uplink transmission (i.e., the UE does not count the nth uplink transmission over K repeated transmissions).
It should be noted that, in the uplink transmission method provided in the embodiment of the present application, the execution main body may be an uplink transmission device, or a control module in the uplink transmission device for executing the uplink transmission method. In the embodiment of the present application, an uplink transmission apparatus for performing an uplink transmission method is taken as an example, and the uplink transmission apparatus provided in the embodiment of the present application is described.
Fig. 3 shows a schematic diagram of a possible structure of an uplink transmission device involved in the embodiment of the present application. As shown in fig. 3, the uplink transmission device 30 may include: a determination module 31.
The determining module 31 is configured to determine whether to perform uplink transmission on the first resource according to target information, where the target information includes at least one of: type information of the first resource and target indication information of the CSI-RS. Wherein the target indication information comprises at least one of: the CSI-RS transmission method includes first indication information and second indication information, wherein the first indication information is used for indicating transmission resources of the CSI-RS, and the second indication information is used for indicating whether the CSI-RS is transmitted or not.
In a possible implementation manner, the type information of the first resource includes at least one of: uplink resources, downlink resources, flexible symbols, flexible time slots, flexible subbands.
In a possible implementation manner, the first indication information is indicated by system information or by high-layer signaling; and/or the presence of a gas in the gas,
the second indication information is transmitted through a downlink control channel or through a sequence.
In a possible implementation manner, the downlink control channel is a paging downlink control channel, and the second indication information is further used for indicating at least one of the following: the UE monitors a paging downlink control channel and the UE monitors a paging downlink data channel.
In a possible implementation manner, the target information at least includes type information of the first resource.
The determining module 31 is specifically configured to not perform uplink transmission on the first resource when the first resource is the target type resource and the first resource overlaps with the transmission resource of the CSI-RS. Wherein the target type resource is any one of: flexible symbols, flexible slots, flexible subbands.
In a possible implementation manner, the target information at least includes type information of the first resource.
The determining module 31 is specifically configured to not perform uplink transmission on the first resource when the first resource is an unavailable resource configured by the network device.
In a possible implementation manner, the target information at least includes target indication information. The determining module 31 is specifically configured to not perform uplink transmission on the first resource when the target indication information indicates that the CSI-RS is transmitted on the transmission resource of the CSI-RS.
In a possible implementation manner, the target information at least includes target indication information. The determining module 31 is specifically configured to perform uplink transmission on the first resource when the target indication information indicates that the CSI-RS is not transmitted on the transmission resource of the CSI-RS.
In a possible implementation manner, the determining module 31 is specifically configured to not perform uplink transmission on the first resource when the UE is not configured to receive the second indication information.
In a possible implementation manner, the uplink transmission includes at least one of the following: the method comprises the steps of transmission of an uplink data channel, transmission of an uplink control channel, transmission of a sounding reference signal and transmission of a random access channel.
In a possible implementation manner, the uplink data channel is at least one of: an uplink data channel for repeated transmission, an uplink data channel indicated by downlink control information DCI, an uplink shared channel configured with authorization, and an uplink data channel corresponding to the random access message. The uplink control channel is at least one of: and the uplink control channel is repeatedly transmitted, and the uplink data channel corresponding to the confirmation message of the random access message.
In a possible implementation manner, with reference to fig. 3, as shown in fig. 4, the uplink transmission device 30 provided in the embodiment of the present application further includes: a processing module 32. Wherein. A processing module 32, configured to ignore the uplink transmission of the nth time or not count the uplink transmission of the nth time in the repeat transmission of the K times after the determining module 31 determines whether to perform the uplink transmission on the first resource according to the target information and if the UE does not perform the uplink transmission of the nth time, where K is an integer greater than 1 and n is a positive integer less than or equal to K.
The embodiment of the application provides an uplink transmission device, and when uplink transmission and CSI-RS transmission are performed, whether uplink transmission is performed on a first resource is determined according to type information of the first resource and/or indication information of the CSI-RS, that is, whether the first resource is an available resource for uplink transmission is determined according to the two pieces of information, instead of performing uplink transmission directly on the first resource, so that the problem that uplink and downlink transmission may conflict can be avoided, transmission of the CSI-RS can be ensured, and transmission performance is improved.
The uplink transmission apparatus in the embodiment of the present application may be an apparatus, an apparatus with an operating system, or a UE, and may also be a component, an integrated circuit, or a chip in the UE. The apparatus or UE may be a mobile terminal or a non-mobile terminal. For example, the mobile terminal may include, but is not limited to, the UE 11 of the above-listed type, and the non-mobile terminal may be a server, a Network Attached Storage (NAS), a Personal Computer (PC), a Television (TV), a teller machine, a self-service machine, or the like, and the embodiments of the present application are not limited in particular.
The uplink transmission device provided in the embodiment of the present application can implement each process implemented by the method embodiment described above, and achieve the same technical effect, and for avoiding repetition, the details are not repeated here.
Optionally, in this embodiment of the present application, as shown in fig. 5, a communication device 500 is further provided in this embodiment of the present application, and includes a processor 501, a memory 502, and a program or an instruction stored in the memory 502 and executable on the processor 501, for example, when the communication device 500 is a UE, the program or the instruction is executed by the processor 501 to implement each process of the foregoing uplink transmission method embodiment, and can achieve the same technical effect.
An embodiment of the present application further provides a UE, including a processor and a communication interface, where the processor is configured to determine whether to perform uplink transmission on a first resource according to target information, where the target information includes at least one of: type information of the first resource and target indication information of the CSI-RS. Wherein the target indication information comprises at least one of: the CSI-RS transmission method includes first indication information and second indication information, wherein the first indication information is used for indicating transmission resources of the CSI-RS, and the second indication information is used for indicating whether the CSI-RS is transmitted or not. The UE embodiment corresponds to the UE side method embodiment, and all implementation processes and implementation manners of the method embodiment can be applied to the UE embodiment, and the same technical effects can be achieved. Specifically, fig. 6 is a schematic diagram of a hardware structure of a UE implementing the embodiment of the present application.
The UE 100 includes but is not limited to: at least some of the radio frequency unit 101, the network module 102, the audio output unit 103, the input unit 104, the sensor 105, the display unit 106, the user input unit 107, the interface unit 108, the memory 109, and the processor 110.
Those skilled in the art will appreciate that the UE 100 may further include a power supply (e.g., a battery) for supplying power to various components, which may be logically connected to the processor 110 via a power management system, so as to manage charging, discharging, and power consumption management functions via the power management system. The UE structure shown in fig. 6 does not constitute a limitation of the UE, and the UE may include more or less components than those shown, or combine some components, or arrange different components, and thus, the description is not repeated herein.
It should be understood that, in the embodiment of the present application, the input unit 104 may include a Graphics Processing Unit (GPU) 1041 and a microphone 1042, and the graphics processing unit 1041 processes image data of a still picture or a video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The display unit 106 may include a display panel 1061, and the display panel 1061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 107 includes a touch panel 1071 and other input devices 1072. The touch panel 1071 is also referred to as a touch screen. The touch panel 1071 may include two parts of a touch detection device and a touch controller. Other input devices 1072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.
In the embodiment of the present application, the radio frequency unit 101 receives downlink data from a network device and then processes the downlink data to the processor 110; in addition, the uplink data is sent to the network device. Typically, radio frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
The memory 109 may be used to store software programs or instructions as well as various data. The memory 109 may mainly include a storage program or instruction area and a storage data area, wherein the storage program or instruction area may store an operating system, an application program or instruction (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. Further, the memory 109 may include a high-speed random access memory, and may also include a nonvolatile memory, wherein the nonvolatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an erasable programmable PROM (EPROM), an Electrically Erasable Programmable ROM (EEPROM), or a flash memory. Such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.
Processor 110 may include one or more processing units; alternatively, the processor 110 may integrate an application processor, which primarily handles operating system, user interface, and applications or instructions, etc., and a modem processor, which primarily handles wireless communications, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 110.
Wherein, the processor 110 is configured to determine whether to perform uplink transmission on the first resource according to target information, where the target information includes at least one of: type information of the first resource and target indication information of the CSI-RS. Wherein the target indication information comprises at least one of: the CSI-RS transmission method includes first indication information and second indication information, wherein the first indication information is used for indicating transmission resources of the CSI-RS, and the second indication information is used for indicating whether the CSI-RS is transmitted or not.
The embodiment of the application provides a UE, wherein when performing uplink transmission and CSI-RS transmission, the UE determines whether to perform uplink transmission on a first resource according to type information of the first resource and/or indication information of the CSI-RS, that is, the UE may determine whether the first resource is an available resource for uplink transmission according to the two pieces of information, rather than directly performing uplink transmission on the first resource, so that a problem that uplink and downlink transmission may collide with each other may be avoided, transmission of the CSI-RS may be ensured, and transmission performance is improved.
Optionally, in this embodiment of the application, the target information at least includes type information of the first resource. The processor 110 is specifically configured to not perform uplink transmission on the first resource when the first resource is the target type resource and the first resource overlaps with the transmission resource of the CSI-RS. Wherein the target type resource is any one of: flexible symbols, flexible slots, flexible subbands.
Optionally, in this embodiment of the application, the target information at least includes type information of the first resource. The processor 110 is specifically configured to not perform uplink transmission on the first resource when the first resource is an unavailable resource configured by the network device.
Optionally, in this embodiment of the application, the target information at least includes target indication information. The processor 110 is specifically configured to not perform uplink transmission on the first resource when the target indication information indicates that the CSI-RS is transmitted on the transmission resource of the CSI-RS.
Optionally, in this embodiment of the application, the target information at least includes target indication information. The processor 110 is specifically configured to perform uplink transmission on the first resource when the target indication information indicates that the CSI-RS is not transmitted on the transmission resource of the CSI-RS.
Optionally, in this embodiment of the application, the processor 110 is specifically configured to not perform uplink transmission on the first resource when the UE is not configured to receive the second indication information.
Optionally, in this embodiment of the present application, the processor 110 is further configured to, after determining whether to perform uplink transmission on the first resource according to the target information, if the UE performs K times of repeated transmission on the uplink transmission and the UE does not perform uplink transmission for the nth time, ignore the nth time of uplink transmission, or not count the nth time of uplink transmission in the K times of repeated transmission, where K is an integer greater than 1 and n is a positive integer less than or equal to K.
The UE provided in the embodiment of the present application can implement each process implemented by the foregoing method embodiment, and achieve the same technical effect, and is not described here again to avoid repetition.
An embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the program or the instruction implements each process of the uplink transmission method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.
Wherein the processor is the processor in the UE described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and the like.
The embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction to implement each process of the uplink transmission method embodiment, and can achieve the same technical effect, and the details are not repeated here to avoid repetition.
It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip or a system-on-chip, etc.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatuses in the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions recited, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present application.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (26)

1. An uplink transmission method, comprising:
the method comprises the following steps that User Equipment (UE) determines whether uplink transmission is carried out on a first resource or not according to target information, wherein the target information comprises at least one of the following items: type information of the first resource and target indication information of a channel state information reference signal (CSI-RS);
wherein the target indication information comprises at least one of: the CSI-RS transmission method includes the steps of obtaining first indication information and second indication information, wherein the first indication information is used for indicating transmission resources of the CSI-RS, and the second indication information is used for indicating whether the CSI-RS is transmitted or not.
2. The method of claim 1, wherein the type information of the first resource comprises at least one of: uplink resources, downlink resources, flexible symbols, flexible time slots, flexible subbands.
3. The method according to claim 1 or 2,
the first indication information is indicated by system information or by high-level signaling;
and/or the presence of a gas in the gas,
the second indication information is transmitted through a downlink control channel or through a sequence.
4. The method of claim 3, wherein the downlink control channel is a paging downlink control channel;
the second indication information is further used for indicating at least one of the following: and the UE monitors the paging downlink control channel and the UE monitors the paging downlink data channel.
5. The method according to claim 1 or 2, wherein the target information comprises at least type information of the first resource;
the UE determines whether to perform uplink transmission on the first resource according to the target information, including:
the UE does not perform the uplink transmission on the first resource when the first resource is a target type resource and the first resource is overlapped with the transmission resource of the CSI-RS;
wherein the target type resource is any one of: flexible symbols, flexible slots, flexible subbands.
6. The method according to claim 1 or 2, wherein the target information comprises at least type information of the first resource;
the UE determines whether to perform uplink transmission on the first resource according to the target information, including:
and when the first resource is an unavailable resource configured by network equipment, the UE does not perform the uplink transmission on the first resource.
7. The method according to claim 1 or 2, characterized in that the target information comprises at least the target indication information;
the UE determines whether to perform uplink transmission on the first resource according to the target information, including:
and the UE does not perform the uplink transmission on the first resource under the condition that the target indication information indicates that the CSI-RS is transmitted on the transmission resource of the CSI-RS.
8. The method according to claim 1 or 2, characterized in that the target information comprises at least the target indication information;
the UE determines whether to perform uplink transmission on the first resource according to the target information, including:
and under the condition that the target indication information indicates that the CSI-RS is not transmitted on the transmission resource of the CSI-RS, the UE carries out uplink transmission on the first resource.
9. The method of claim 1, wherein the UE determines whether to perform uplink transmission on the first resource according to the target information, comprising:
the UE does not perform the uplink transmission on the first resource if the UE is not configured for reception of the second indication information.
10. The method of claim 1, wherein the uplink transmission comprises at least one of: the method comprises the steps of transmission of an uplink data channel, transmission of an uplink control channel, transmission of a sounding reference signal and transmission of a random access channel.
11. The method of claim 10, wherein the uplink data channel is at least one of: an uplink data channel for repeated transmission, an uplink data channel indicated by downlink control information DCI, an uplink shared channel for configuration authorization, and an uplink data channel corresponding to the random access message;
the uplink control channel is at least one of: and the uplink control channel is repeatedly transmitted, and the uplink data channel corresponding to the confirmation message of the random access message.
12. The method of claim 1, wherein after the UE determines whether to perform uplink transmission on the first resource according to the target information, the method further comprises:
and under the condition that the UE performs K times of repeated transmission on the uplink transmission and the UE does not perform the uplink transmission for the nth time, the UE ignores the uplink transmission for the nth time, or the UE does not count the uplink transmission for the nth time in the K times of repeated transmission, wherein K is an integer larger than 1, and n is a positive integer smaller than or equal to K.
13. An uplink transmission apparatus, comprising: a determination module;
the determining module is configured to determine whether to perform uplink transmission on the first resource according to target information, where the target information includes at least one of: type information of the first resource and target indication information of a channel state information reference signal (CSI-RS);
wherein the target indication information comprises at least one of: the CSI-RS transmission method includes the steps of obtaining first indication information and second indication information, wherein the first indication information is used for indicating transmission resources of the CSI-RS, and the second indication information is used for indicating whether the CSI-RS is transmitted or not.
14. The apparatus of claim 13, wherein the type information of the first resource comprises at least one of: uplink resources, downlink resources, flexible symbols, flexible time slots, flexible subbands.
15. The apparatus of claim 13 or 14,
the first indication information is indicated by system information or by high-level signaling;
and/or the presence of a gas in the gas,
the second indication information is transmitted through a downlink control channel or through a sequence.
16. The apparatus of claim 15, wherein the downlink control channel is a paging downlink control channel;
the second indication information is further used for indicating at least one of the following: and the UE monitors the paging downlink control channel and the UE monitors the paging downlink data channel.
17. The apparatus according to claim 13 or 14, wherein the target information comprises at least type information of the first resource;
the determining module is specifically configured to not perform the uplink transmission on the first resource when the first resource is a target type resource and the first resource overlaps with a transmission resource of the CSI-RS;
wherein the target type resource is any one of: flexible symbols, flexible slots, flexible subbands.
18. The apparatus according to claim 13 or 14, wherein the target information comprises at least type information of the first resource;
the determining module is specifically configured to not perform the uplink transmission on the first resource when the first resource is an unavailable resource configured by a network device.
19. The apparatus according to claim 13 or 14, wherein the target information comprises at least the target indication information;
the determining module is specifically configured to not perform the uplink transmission on the first resource when the target indication information indicates that the CSI-RS is transmitted on the transmission resource of the CSI-RS.
20. The apparatus according to claim 13 or 14, wherein the target information comprises at least the target indication information;
the determining module is specifically configured to perform uplink transmission on the first resource when the target indication information indicates that the CSI-RS is not transmitted on the transmission resource of the CSI-RS.
21. The apparatus of claim 13, wherein the determining module is specifically configured to not perform the uplink transmission on the first resource if the UE is not configured to receive the second indication information.
22. The apparatus of claim 13, wherein the uplink transmission comprises at least one of: the method comprises the steps of transmission of an uplink data channel, transmission of an uplink control channel, transmission of a sounding reference signal and transmission of a random access channel.
23. The apparatus of claim 22, wherein the uplink data channel is at least one of: an uplink data channel for repeated transmission, an uplink data channel indicated by downlink control information DCI, an uplink shared channel configured with authorization, and an uplink data channel corresponding to the random access message;
the uplink control channel is at least one of: and the uplink control channel is repeatedly transmitted, and the uplink data channel corresponding to the confirmation message of the random access message.
24. The apparatus of claim 13, wherein the uplink transmission means further comprises: a processing module;
the processing module is configured to, after the determining module determines whether to perform the uplink transmission on the first resource according to the target information, ignore the uplink transmission of the nth time or not when the UE performs K times of repeated transmission on the uplink transmission and the UE does not perform the uplink transmission of the nth time, where K is an integer greater than 1 and n is a positive integer less than or equal to K.
25. A user equipment, UE, comprising a processor, a memory and a program or instructions stored on the memory and executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the uplink transmission method according to any of claims 1 to 12.
26. A readable storage medium, on which a program or instructions are stored, which when executed by a processor implement the steps of the upstream transmission method according to any one of claims 1 to 12.
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