CN117500071A - Uplink transmission method, device, terminal, network equipment and medium - Google Patents
Uplink transmission method, device, terminal, network equipment and medium Download PDFInfo
- Publication number
- CN117500071A CN117500071A CN202210871141.5A CN202210871141A CN117500071A CN 117500071 A CN117500071 A CN 117500071A CN 202210871141 A CN202210871141 A CN 202210871141A CN 117500071 A CN117500071 A CN 117500071A
- Authority
- CN
- China
- Prior art keywords
- network side
- uplink
- uplink transmission
- time domain
- reference offset
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 216
- 238000000034 method Methods 0.000 title claims abstract description 115
- 238000012545 processing Methods 0.000 claims description 18
- 230000009471 action Effects 0.000 claims description 13
- 108010076504 Protein Sorting Signals Proteins 0.000 claims description 4
- 230000011664 signaling Effects 0.000 claims description 4
- 238000004891 communication Methods 0.000 abstract description 28
- 230000008569 process Effects 0.000 description 13
- 238000010586 diagram Methods 0.000 description 12
- 230000002452 interceptive effect Effects 0.000 description 11
- 230000006870 function Effects 0.000 description 10
- 230000000694 effects Effects 0.000 description 9
- 230000003993 interaction Effects 0.000 description 7
- 238000005259 measurement Methods 0.000 description 6
- 238000004590 computer program Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000007726 management method Methods 0.000 description 3
- 235000019527 sweetened beverage Nutrition 0.000 description 3
- 230000003190 augmentative effect Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000013468 resource allocation Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 210000000707 wrist Anatomy 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
- H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0078—Timing of allocation
Landscapes
- 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, a terminal, network side equipment and a medium, which belong to the technical field of communication, and the uplink transmission method in the embodiment of the application comprises the following steps: the terminal receives first indication information from first network side equipment, wherein the first indication information is related to a first reference offset value, and the first reference offset value is related to signal arrival time of second network side equipment; determining a first uplink transmission timing according to the first indication information; and transmitting the first uplink channel and/or the uplink signal according to the first uplink transmission timing. Another uplink transmission method in the embodiment of the present application includes: the first network side equipment determines a first reference offset value according to the signal arrival time of the second network side equipment; transmitting first indication information to the terminal, wherein the first indication information is related to a first reference offset value; and receiving a first uplink channel and/or an uplink signal from the terminal according to a first uplink receiving timing, wherein the first uplink receiving timing is related to a first reference offset value.
Description
Technical Field
The application belongs to the technical field of communication, and particularly relates to an uplink transmission method, an uplink transmission device, a terminal, network side equipment and a medium.
Background
In a 5G time division duplex (Time Division Duplex, TDD) network, different cells typically employ the same uplink-downlink (UL-DL) ratio. In practice, however, the uplink and downlink traffic of the terminal in different cells is not symmetrical, for example, the uplink traffic may be greater in some cells than in other cells than in others. If all cells adopt the same uplink and downlink proportion, the system resources cannot be reused.
In view of this, it is considered to employ dynamically variable uplink and downlink ratios in different cells, which would be advantageous to improve the system resource utilization. However, different uplink and downlink ratios in different cells bring the problem of cross-link interference in different transmission directions, and the performance of a communication system is easy to be reduced.
Disclosure of Invention
The embodiment of the application provides an uplink transmission method, an uplink transmission device, a terminal, network side equipment and a medium, so that the problem of cross-link interference is effectively processed, and the performance of a communication system is improved.
In a first aspect, an uplink transmission method is provided, including:
the terminal receives first indication information from first network side equipment, wherein the first indication information is related to a first reference offset value, and the first reference offset value is related to signal arrival time of second network side equipment;
The terminal determines a first uplink sending timing according to the first indication information;
and the terminal transmits a first uplink channel and/or an uplink signal according to the first uplink transmission timing.
In a second aspect, there is provided an uplink transmission apparatus, including:
the first receiving module is used for receiving first indication information from first network side equipment, wherein the first indication information is related to a first reference offset value, and the first reference offset value is related to signal arrival time of second network side equipment;
a first determining module, configured to determine a first uplink transmission timing according to the first indication information;
and the first sending module is used for sending the first uplink channel and/or the uplink signal according to the first uplink sending timing.
In a third aspect, an uplink transmission method is provided, including:
the first network side equipment determines a first reference offset value according to the signal arrival time of the second network side equipment;
the first network side equipment sends first indication information to a terminal, wherein the first indication information is related to the first reference offset value;
and the first network side equipment receives a first uplink channel and/or an uplink signal from the terminal according to a first uplink receiving timing, wherein the first uplink receiving timing is related to the first reference offset value.
In a fourth aspect, an uplink transmission apparatus is provided, including:
the second determining module is used for determining a first reference offset value according to the signal arrival time of the second network side equipment;
the second sending module is used for sending first indication information to the terminal, wherein the first indication information is related to the first reference offset value;
and the second receiving module is used for receiving a first uplink channel and/or an uplink signal from the terminal according to a first uplink receiving timing, and the first uplink receiving timing is related to the first reference offset value.
In a fifth aspect, there is provided a terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method as described in the first aspect.
In a sixth aspect, a network side device is provided, comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method according to the third aspect.
In a seventh aspect, a communication system is provided, comprising: a terminal operable to perform the steps of the method as described in the first aspect, and a network side device operable to perform the steps of the method as described in the third aspect.
In an eighth aspect, there is provided a readable storage medium having stored thereon a program or instructions which when executed by a processor, performs the steps of the method according to the first aspect, or performs the steps of the method according to the third aspect.
In a ninth aspect, there is provided a computer program/program product stored in a storage medium, the computer program/program product being executable by at least one processor to perform the steps of the method according to the first aspect or to perform the steps of the method according to the third aspect.
In the embodiment of the application, the terminal determines the first uplink transmission timing according to the first indication information received from the first network side device, and transmits the first uplink channel and/or the uplink signal according to the first uplink transmission timing. The first indication information is related to a first reference offset value, and the first reference offset value is related to the signal arrival time of the second network side equipment, so that after the first uplink channel and/or uplink signal of the terminal, which is sent by the terminal according to the first uplink sending timing, reach the first network side equipment, the first uplink channel and/or uplink signal of the terminal, which is received by the first network side equipment, can be aligned with the downlink signal of the second network side equipment, and the downlink signal of the second network side equipment is eliminated, the problem of cross-link interference between the network side equipment is effectively processed, and the performance of the communication system can be improved.
Drawings
Fig. 1 is a block diagram of a wireless communication system to which embodiments of the present application are applicable;
fig. 2 is a schematic diagram of a timing advance determination process in the related art;
FIG. 3 is a schematic diagram of uplink and downlink resource allocation in the related art;
FIG. 4 is another schematic diagram of uplink and downlink resource allocation in the related art;
fig. 5 is a schematic diagram of different uplink and downlink ratios of different cells in the related art;
fig. 6 is a flowchart of an implementation of an uplink transmission method in an embodiment of the present application;
FIG. 7 is a timing relationship diagram in an embodiment of the present application;
fig. 8 is a schematic structural diagram of an uplink transmission device corresponding to fig. 6 in the embodiment of the present application;
fig. 9 is a flowchart of another implementation of the uplink transmission method in the embodiment of the present application;
fig. 10 is a schematic structural diagram of an uplink transmission device corresponding to fig. 9 in the embodiment of the present application;
fig. 11 is a schematic structural diagram of a communication device in an embodiment of the present application;
fig. 12 is a schematic hardware structure of a network side device in the embodiment of the present application;
fig. 13 is a schematic diagram of a hardware structure of a terminal in an embodiment of the present application.
Detailed Description
Technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. 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 the protection of the present application.
The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects 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 sequences other than those illustrated or otherwise described herein, and that the terms "first" and "second" are generally intended to be used in a generic sense and not to limit the number of objects, for example, the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/" generally means a relationship in which the associated object is an "or" before and after.
It is noted that the techniques described in the embodiments of the present application are not limited to long term evolution (Long Term Evolution, LTE)/LTE-Advanced (LTE-a) systems, but may also be used in other wireless communication systems, such as code division multiple access (Code Division Multiple Access, CDMA), time division multiple access (Time Division Multiple Access, TDMA), frequency division multiple access (Frequency Division Multiple Access, FDMA), orthogonal frequency division multiple access (Orthogonal Frequency Division Multiple Access, OFDMA), single-carrier frequency division multiple access (SC-carrier Frequency Division Multiple Access, FDMA), and other systems. The terms "system" and "network" in embodiments of the present application are often used interchangeably, and the techniques described may be used for both the above-mentioned systems and radio technologies, as well as other systems and radio technologies. The following description describes a New air interface (NR) system for purposes of example and uses NR terminology in much of the description that follows, but these techniques are also applicable to applications other than NR system applications, such as generation 6 (6) th Generation, 6G) communication system.
Fig. 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable. The wireless communication system includes a terminal 11 and a network device 12. The terminal 11 may be a mobile phone, a tablet (Tablet Personal Computer), a Laptop (Laptop Computer) or a terminal-side Device called a notebook, a personal digital assistant (Personal Digital Assistant, PDA), a palm top, a netbook, an ultra-mobile personal Computer (ultra-mobile personal Computer, UMPC), a mobile internet appliance (Mobile Internet Device, MID), an augmented reality (augmented reality, AR)/Virtual Reality (VR) Device, a robot, a Wearable Device (weather Device), a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), a smart home (home Device with a wireless communication function, such as a refrigerator, a television, a washing machine, or a furniture), a game machine, a personal Computer (personal Computer, PC), a teller machine, or a self-service machine, and the Wearable Device includes: intelligent wrist-watch, intelligent bracelet, intelligent earphone, intelligent glasses, intelligent ornament (intelligent bracelet, intelligent ring, intelligent necklace, intelligent anklet, intelligent foot chain etc.), intelligent wrist strap, intelligent clothing etc.. Note that, the specific type of the terminal 11 is not limited in the embodiment of the present application. The network-side device 12 may comprise an access network device, which may also be referred to as a radio access network device, a radio access network (Radio Access Network, RAN), a radio access network function or a radio access network element. The access network device may include a base station, a WLAN access point, a WiFi node, or the like, where the base station may be referred to as a node B, an evolved node B (eNB), an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a home node B, a home evolved node B, a transmission receiving point (Transmitting Receiving Point, TRP), or some other suitable terminology in the field, and the base station is not limited to a specific technical vocabulary so long as the same technical effect is achieved, and it should be noted that in the embodiment of the present application, only the base station in the NR system is described by way of example, and the specific type of the base station is not limited.
For easy understanding, application scenarios and some related technologies and concepts of the embodiments of the present application will be described first.
The embodiment of the application can be applied to dynamic TDD scenes of a communication system such as NR, LTE, CDMA, GSM and the like and can also be applied to a Full duplex (Full duplex) scene of a sub-band.
A Time Advance (TA) is described. Taking an NR communication system as an example, after a terminal accesses the NR communication system, the terminal may obtain initial uplink synchronization and transmit an uplink signal. The network side device, such as the gNB, may determine the TA value by measuring the arrival time of the data in the terminal uplink signal, such as the sounding reference signal (Sounding Reference Signal, SRS), the channel quality indication (Channel Quanlity Indicator, CQI), the hybrid automatic repeat request (Hybrid Auto Repeat Request, HARQ), the physical uplink shared channel (Physical Uplink Shared Channel, PUSCH), and send the corresponding TA command to the terminal at an appropriate timing. The terminal can determine the uplink transmission timing according to the TA value, and transmit the uplink channel and the signal according to the uplink transmission timing.
As shown in fig. 2, the first rectangular box indicates the downlink symbol timing of the gNB in the order from top to bottom, the second rectangular box indicates the downlink symbol timing of the terminal receiver after the propagation delay Tp, the third rectangular box indicates that the uplink transmission timing of the terminal is advanced by ta=2tp, and the fourth rectangular box indicates that the uplink transmission of the terminal is aligned with the downlink symbol timing on the gNB side.
At subcarrier spacing of 2 μ * At 15kHz, the change of the uplink timing indicated by the TA command relative to the current uplink timing is 16×64×t c /2 μ Is a multiple of (2). T (T) c Is the basic time unit.
In a control unit (MAC Control Element, MAC CE) that commands the MAC layer in a random access response or in absolute timing advance, the 3846 index value may indicate a time alignment of N by ta=0, 1,2 TA ＝TA*16*64/2 μ 。
In service, the current N may be indicated by ta=0, 1,2,..63 index value TA Value, i.e. N TA_old Adjust to new N TA Value, i.e. N TA_new . I.e. N TA_new ＝N TA_old +(TA-31)*16*64/2 μ 。
Secondly, introducing the ratio of uplink and downlink. In an NR communication system, the uplink and downlink proportion takes a symbol as granularity, so that the configuration is more flexible. One possible configuration procedure is as follows:
(1) and carrying out semi-static uplink and downlink proportion of the cell.
The higher layer provides parameters TDD-UL-DL-configuration command, which includes a reference subcarrier spacing (reference SCS configuration) and pattern1, and pattern1 includes:
a slot configuration period (slot configuration period) P ms;
downlink time slot number Dslots (number of slots with only downlink symbols);
downlink symbol number Dsym (number of downlink symbols);
uplink time slot number Uslots (number of slots with only uplink symbols);
Number of uplink symbols Usym (number of uplink symbols).
(2) And carrying out uplink and downlink proportioning special for the cell.
On the basis of the configuration in (1), further providing a high-layer parameter TDD-UL-DL-ConfigDedimated, wherein the parameter can configure flexible symbols of the parameter TDD-UL-DL-ConfigurationCommon configuration. That is, the uplink and downlink symbols configured in (1) may not be changed, but the flexible symbols may be rewritten by TDD-UL-DL-ConfigDedicated.
The parameter provides a series of slot configurations, for each slot configuration, a slot index (slot index) and a symbol configuration, for the slot specified by the slot index, with:
if symbols＝allDownlink,all symbols in the slot are downlink
if symbols＝allUplink,all symbols in the slot are uplink
if symbols＝explicit,nrofDownlinkSymbols provides a number of downlink first
that is, if the symbol is explicit (explicit), then the parameter nrofdownlinksymbol provides the number of downlink symbols, nrofuplinksymbol provides the number of uplink symbols, the downlink symbol is forward most, the uplink symbol is rearmost, if the parameter nrofdownlinksymbol is not provided, there are no downlink symbols, and if nrofUplinkSymbols is not provided. If there is a remainder after configuration, the remainder symbol is flexible symbol X. (2) The reference subcarrier spacing reference SCS configuration in (1) is the same.
(3) Dynamic downlink control information (Downlink Control Information, DCI) uplink and downlink ratios.
The uplink and downlink matching realized by the dynamic DCI can be realized by DCI format (DCI format) 2-0 or directly realized by uplink and downlink data scheduling of DCI format 0-0 0-1 1-0 1-1. DCI format 2-0 is used exclusively as a slot format indicator (Slot Format Indicator, SFI) indication. The SFI is mainly configured according to a slot format supportable by a single slot, that is, from receiving DCI format 2-0, the physical downlink control channel (Physical Downlink Control Channel, PDCCH) is continuously monitored for periods (monitoring period) of slots, and the slots are configured according to the indication of the SFI in the DCI. The maximum number of formats supported by a single slot is 256, and the number of formats already standardized is 56.
Full duplex (Full duplex) will be described again.
For unpaired spectrum in NR communication systems, such as TDD configuration, the bandwidth of its uplink-downlink bandwidth portion (UL-DL BWP), SCS, may be different.
For the downlink slot (DL slot), the network side device configures a downlink bandwidth part (DL BWP) for the terminal, and for the uplink slot (UL slot), the network side device configures an uplink bandwidth part (UL BWP) for the terminal.
In a full duplex (full duplex) scenario, there may be several cases, as shown in fig. 3:
case 1: a downlink bandwidth part is configured for the terminal in a downlink time slot, such as DL slot 1;
case 2: configuring uplink resources (UL resources) in a downlink bandwidth portion for a terminal in a downlink timeslot, such as DL slot 2, for example, configuring subbands subband2 and subband3 as uplink resources;
case 3: downlink resources (DL resources) are configured in an uplink bandwidth portion for a terminal in an uplink slot, e.g., UL slot 3, e.g., subband2 is configured as a downlink resource.
There may also be several cases, as shown in fig. 4:
case 4: configuring an uplink bandwidth part for a terminal in an uplink time slot, such as UL slot 4;
case5: configuring downlink resources in an uplink bandwidth part for a terminal in an uplink time slot, such as UL slot 5, for example, configuring subband2 as downlink resources;
case6: uplink resources are configured in a downlink bandwidth portion for a terminal in a downlink timeslot, e.g., DL slot 6, e.g., subbands subband2 and subband3 are configured as uplink resources.
Finally, different uplink and downlink proportions are introduced.
Fig. 5 is a schematic diagram of different uplink and downlink ratios adopted by different cells, where the macro cell (macro cell) has larger downlink traffic volume, more downlink time slots than uplink time slots, and the indoor cell (indoor cell) has larger uplink traffic volume, more uplink time slots than downlink time slots. Different uplink and downlink proportions of different cells are adopted, so that the cell resources are fully utilized, and the utilization rate of the system resources is improved.
Different uplink and downlink ratios are adopted by different cells, and cross-link interference (Cross Link Interference, CLI) in different transmission directions can be caused. For example, in slots n+1 and slot n+2, gNB B has cross-link interference to gNB A and UE1 has cross-link interference to UE 2.
The application scenario and some related technologies and concepts of the embodiments of the present application are described above. The uplink transmission method provided by the embodiment of the application is described in detail below by some embodiments and application scenarios thereof with reference to the accompanying drawings.
Referring to fig. 6, a flowchart of an implementation of an uplink transmission method in an embodiment of the present application is shown, where the method may include the following steps:
s610: the terminal receives first indication information from first network side equipment, wherein the first indication information is related to a first reference offset value, and the first reference offset value is related to signal arrival time of second network side equipment.
As described above, different uplink and downlink ratios of different cells are beneficial to fully utilizing cell resources and improving the utilization rate of system resources, but cross-link interference in different transmission directions, such as cross-link interference of second network side equipment to first network side equipment or cross-link interference of second terminal to first terminal, is also caused. For any network side device, such as network side device a, if other network side devices, such as network side device B, have cross-link interference to network side device a, the cross-link interference of network side device B will affect the processing of uplink channels and/or uplink signals of network side device a to terminals within the service range of network side device a.
The first network side device may acquire predetermined time division duplex uplink and downlink Configuration (TDD DL-UL Configuration) information of other network side devices, and determine whether cross-link interference exists according to the TDD uplink and downlink Configuration information of the first network side device and the acquired TDD uplink and downlink Configuration information of the other network side devices. For example, in fig. 5, the uplink-downlink ratio from slot n to slot n+3 of the gcb a is: the uplink and downlink ratio of the slot n to the slot n+3 of the DUUU and the gNB B is as follows: DDDU, in slots slot+1 and slot+2, gNB has cross-link interference to gNB a, gNB is an interfering device of gNB a, gNB a is an interfered device.
Under the condition that cross-link interference exists, the first network side equipment can acquire the signal arrival time of the second network side equipment, namely the time when the downlink signal of the second network side equipment arrives at the first network side equipment. The second network side device is one or more interfering devices of the first network side device. The first reference offset value may then be determined based on the signal arrival time of the second network side device. I.e. the first reference offset value is related to the signal arrival time of the second network side device. The first reference offset value is used for offsetting the TA value of the uplink channel and/or the uplink signal sent by the terminal.
After the first network side device determines the first reference offset value, the first indication information may be further determined, where the first indication information is related to the first reference offset value. The first network side device may send downlink channels and/or downlink signals to the terminals in the service range of the first network side device, and may also receive uplink channels and/or uplink signals sent by the terminals in the service range of the first network side device. After determining the first indication information, the first network side device may send the first indication information to the terminal.
The terminal may receive first indication information from the first network side device.
S620: and the terminal determines a first uplink transmission timing according to the first indication information.
After receiving the first indication information from the first network side device, the terminal can determine the first uplink transmission timing according to the first indication information.
The first indication information is related to the first reference offset value, and may include the first reference offset value or include the first reference offset value and the TA value. If the first indication information includes the first reference offset value, the terminal may determine the first uplink transmission timing according to the first reference offset value and the TA value recently indicated by the first network side device. If the first indication information includes a first reference offset value and a TA value, the terminal may determine a first uplink transmission timing according to the first reference offset value and the TA value included in the first indication information.
S630: and the terminal transmits the first uplink channel and/or the uplink signal according to the first uplink transmission timing.
After determining the first uplink transmission timing according to the first indication information, the terminal may further transmit the first uplink channel and/or the uplink signal according to the first uplink transmission timing.
The first network side device may determine a first uplink receiving timing according to the first reference offset value, and receive a first uplink channel and/or an uplink signal of the terminal according to the first uplink receiving timing.
By applying the method provided by the embodiment of the application, the terminal determines the first uplink sending timing according to the first indication information received from the first network side equipment, and sends the first uplink channel and/or the uplink signal according to the first uplink sending timing. The first indication information is related to a first reference offset value, and the first reference offset value is related to the signal arrival time of the second network side equipment, so that after the first uplink channel and/or uplink signal of the terminal, which is sent by the terminal according to the first uplink sending timing, reach the first network side equipment, the first uplink channel and/or uplink signal of the terminal, which is received by the first network side equipment, can be aligned with the downlink signal of the second network side equipment, and the downlink signal of the second network side equipment is eliminated, the problem of cross-link interference between the network side equipment is effectively processed, and the performance of the communication system can be improved.
In an embodiment of the present application, the determining, by the terminal, the first uplink transmission timing according to the first indication information may include the following steps:
and the terminal determines a first uplink sending timing according to the first indication information when the first time domain resource with cross-link interference exists.
In this embodiment of the present application, the time domain resource may specifically be a time slot, a subframe, a radio frame, or other resource corresponding to a certain subcarrier interval. For ease of description, the exemplary illustrations all use slot expressions.
The first network side device may not be interfered by the second network side device by the cross-link, which may not involve all time domain resources, for example, in fig. 5, only in slots slot n+1 and slot n+2, there is cross-link interference of gNB to gNB a. The first network side device may determine that a first time domain resource with cross-link interference exists according to the TDD uplink and downlink configuration information of the first network side device and the obtained TDD uplink and downlink configuration information of other network side devices. There may be one or more first time domain resources that are cross-link interference.
The first network side device may indicate the first time domain resource to the terminal, so that the terminal may determine, according to the first indication information, a first uplink transmission timing, and transmit, according to the first uplink transmission timing, the first uplink channel and/or the uplink signal in the first time domain resource where the cross-link interference exists.
Meanwhile, the first network side device may determine, in the first time domain resource, a first uplink receiving timing according to the first reference offset value, and receive, in accordance with the first uplink receiving timing, a first uplink channel and/or an uplink signal of the terminal.
The first network side equipment determines first time domain resources with cross-link interference and indicates the first time domain resources to the terminal, the terminal determines first uplink sending timing according to first indication information in the first time domain resources, and sends a first uplink channel and/or an uplink signal according to the first uplink sending timing, so that the first network side equipment can effectively process the cross-link interference existing in the first time domain resources.
In one embodiment of the present application, the method may further comprise the steps of:
the terminal receives second indication information from the first network side equipment, wherein the second indication information comprises configuration information of the first time domain resource; alternatively, the second indication information includes dynamic indication information of the first time domain resource.
In the embodiment of the application, after the first network side device determines that the first time domain resource with cross-link interference exists, the second indication information can be sent to the terminal.
Specifically, the second indication information may be configuration information of the first time domain resource. I.e. a first time domain resource indicating to the terminal that cross-link interference exists in a semi-static configuration mode. Thus, after receiving the second indication information from the first network side device, the terminal can acquire the first time domain resource with cross-link interference, and can determine the first uplink transmission timing according to the first indication information in the first time domain resource.
The first network side device sends the configuration information of the first time domain resource to the terminal, so that the terminal can acquire the first time domain resource with cross-link interference, and the first uplink sending timing is determined according to the first indication information in the first time domain resource.
The second indication information may also be dynamic indication information of the first time domain resource, that is, the first network side device dynamically indicates to the terminal that the first time domain resource with cross-link interference exists, and for example, sends a corresponding indication to the terminal in a set duration at each interval. Thus, the terminal can periodically acquire the first time domain resource with cross-link interference, and can determine the first uplink transmission timing according to the first indication information in the first time domain resource.
The first network side equipment dynamically indicates the first time domain resource to the terminal, has certain flexibility, and is convenient for the first network side equipment to adjust in time when the cross-link interference condition changes.
In one embodiment of the present application, the method may further comprise the steps of:
the first step: determining a second uplink transmission timing according to the TA value when the terminal does not have a second time domain resource with cross-link interference;
and a second step of: and the terminal transmits a second uplink channel and/or an uplink signal according to the second uplink transmission timing.
For convenience of description, the above two steps are described in combination.
In this embodiment of the present application, the cross-link interference of the first network side device by the second network side device may not involve all time domain resources, for example, in fig. 5, only in slots slot n+1 and slot n+2, there is cross-link interference of gNB B on gNB a, and in slots slot n and slot n+3, there is no cross-link interference of gNB on gNB a. The first network side device may determine, according to its own TDD uplink and downlink configuration information and the acquired TDD uplink and downlink configuration information of other network side devices, that the second time domain resource has no cross-link interference, or determine, after determining that the first time domain resource has the cross-link interference, other time domain resources except for the first time domain resource as the second time domain resource having no cross-link interference. There may be one or more second time domain resources for which cross-link interference is not present.
After the first network side device determines that the second time domain resource with the cross-link interference does not exist, the first network side device can determine a second uplink receiving timing according to the uplink timing of the first network side device and indicate a TA value for the terminal.
Meanwhile, the first network side equipment can indicate the second time domain resource without cross-link interference to the terminal through the second indication information. Specifically, the second indication information may include configuration information of the first time domain resource, that is, the configuration information of the second time domain resource may be sent to the terminal, or the second indication information may include dynamic indication information of the second time domain resource, that is, the second time domain resource may be dynamically indicated to the terminal. The terminal may determine that the second time domain resource with no cross-link interference exists according to the indication of the first network side device, or after receiving the second indication information of the first network side device for indicating the first time domain resource, the terminal may determine that other time domain resources except the first time domain resource are the second time domain resource with no cross-link interference.
And the terminal can determine a second uplink transmission timing according to the TA value in the second time domain resource, and then transmit a second uplink channel and/or an uplink signal according to the second uplink transmission timing. The TA value may be a TA value recently indicated by the first network side device.
The first network side equipment can receive the second uplink channel and/or uplink signal of the terminal according to the second uplink receiving timing.
That is, the terminal determines the first uplink transmission timing according to the first indication information when the first time domain resource having the cross-link interference exists, and determines the second uplink transmission timing according to the TA value when the second time domain resource having the cross-link interference does not exist. Therefore, the first network side equipment can perform cross-link interference processing on the first time domain resources with the cross-link interference, and transmit and receive channels and/or uplink signals in a conventional manner on the second time domain resources without the cross-link interference, so that resource consumption caused by adjustment of the terminal or the first network side equipment can be reduced.
It should be noted that, for convenience of description, the first network side device may actually send the TA command to the terminal according to its own uplink timing for the second time domain resource where cross-link interference does not exist, and adjust the uplink channel and/or the uplink signal sent by the terminal to align with its own uplink timing. For the first time domain resource with cross-link interference, the first network side device may send first indication information to the terminal according to the uplink timing corresponding to the arrival time of the downlink signal of the second network side device, so that the uplink channel and/or the uplink signal of the terminal and the downlink signal of the second network side device may arrive at the first network side device at the same time. The terminals refer to terminals within the service range of the first network side equipment.
In one embodiment of the present application, the first indication information may include a first reference offset value, where the first reference offset value and the TA value are separately indicated, and uplink transmission timing of each time domain resource is independently determined.
In this embodiment of the present application, the first indication information may include a first reference offset value, where the first reference offset value and the TA value are indicated separately and do not affect each other, and in each time domain resource, the uplink transmission timing of the terminal may be determined independently and no accumulation operation is performed.
That is, the terminal may subtract the first reference offset value from the TA value to obtain the first uplink transmission timing at each first time domain resource where cross-link interference exists. The TA value is a TA value recently indicated to the terminal by the first network side device.
And the terminal can use a TA value at a second uplink sending timing in each second time domain resource without cross-link interference, wherein the TA value is the TA value recently indicated to the terminal by the first network side equipment.
In an embodiment of the present application, the first indication information may include a first reference offset value, where the first reference offset value and the TA value are separately indicated, and the uplink transmission timing of the target time domain resource is obtained based on the uplink transmission timing of the previous time domain resource of the target time domain resource.
In this embodiment of the present application, the first indication information may include a first reference offset value, where the first reference offset value and the TA value are indicated separately and do not affect each other, and the transmission timing of the terminal in the target time domain resource may be obtained based on the uplink transmission timing of the previous time domain resource of the target time domain resource. The target time domain resource is any one time domain resource.
Specifically, if the target time domain resource is a second time domain resource and the target time domain resource is preceded by a first time domain resource, the second uplink transmission timing used by the target time domain resource may be a value obtained by adding a second reference offset value to the first uplink transmission timing used by the previous first time domain resource. For example, the first uplink transmission timing used in the previous first time domain resource is Tam, and it is assumed that tam=ta—the first reference offset value, and the second uplink transmission timing Tan used in the target time domain resource is obtained according to the first uplink transmission timing of the previous first time domain resource, that is, tan=tam+the second reference offset value. The second reference offset value may be the same as the first reference offset value or may be different from the first reference offset value, and is indicated by the first network side device.
If the target time domain resource is a second time domain resource and the target time domain resource is preceded by the second time domain resource, the second uplink transmission timing used by the target time domain resource may be the same as the second uplink transmission timing used by the preceding second time domain resource.
If the target time domain resource is the first time domain resource and the target time domain resource is preceded by the first time domain resource, the first uplink transmission timing used by the preceding first time domain resource is Tam, and it is assumed that tam=ta—the first reference offset value, the first uplink transmission timing used by the target time domain resource, i.e. the following first time domain resource, may be the same as the first uplink transmission timing used by the preceding first time domain resource and is Tam.
If the target time domain resource is a first time domain resource and the target time domain resource is preceded by a second time domain resource, the first uplink transmission timing used by the target time domain resource may be a value obtained by subtracting the first reference offset value from the second uplink transmission timing used by the preceding second time domain resource.
In an embodiment of the present application, the first indication information may include a difference value between a TA value and a first reference offset value, where the first reference offset value and the TA value are indicated jointly, and an uplink transmission timing of each time domain resource is determined independently;
in this embodiment of the present application, the first indication information may include a difference between the TA value and the first reference offset value, and the first reference offset value and the TA value may be indicated jointly. For example, the first network side device obtains the Tap according to the TA value and the first reference offset value, i.e. tap=ta-the first reference offset value. The first network side device can indicate to the terminal Tap in each first time domain resource. The terminal can determine the first uplink transmission timing only according to the Tap.
The first network side equipment indicates the terminal and updates the first indication information used by the terminal corresponding to each first time domain resource, namely the updated first indication information comprises the difference value of the currently used TA value minus the first reference offset value, so that the terminal can determine the first uplink transmission timing directly based on the first indication information.
For ease of understanding, the examples are illustrative.
The information indicating to the first network side device whether each time domain resource of the terminal uses the first reference offset value is assumed to be as shown in table 1:
TABLE 1
Wherein when the first reference offset value usage indicator is "1", it means that the first reference offset value is to be used, and when the first reference offset value is "0", it means that the first reference offset value is not to be used. That is, the first reference offset value is required to be used in all of the time slots n+2, n+3, n+7, n+8, and the first reference offset value is not required to be used in other time slots, where the time slots n+2, n+3, n+7, n+8 are time slots in which cross-link interference exists, and the other time slots are time slots in which cross-link interference does not exist.
In the first time domain resource where the first reference offset value is required to be used, the terminal may subtract the first reference offset value from the TA value to obtain a first uplink transmission timing, and may transmit PUSCH, a physical uplink control channel (Physical Uplink Control Channel, PUCCH), SRS, and the like according to the first uplink transmission timing.
The terminal may transmit PUSCH, PUCCH, SRS, etc. at the second uplink transmission timing using the TA value at the second time domain resource where the first reference offset value is not required.
In particular, it can be understood with reference to the following examples:
for the first reference offset value and the TA value which are independently indicated, the uplink transmission timing of each time domain resource is independently determined, and the calculation is not accumulated:
in time slot n, there is no cross-link interference, assuming that the current TA value is the TA value most recently indicated by the first network side device, e.g. TA 0 Terminal uses TA 0 Obtaining a first uplink transmission timing; similarly, TA is used in slots n+1, n+4, n+5, n+6, n+9 0 Obtaining a first uplink transmission timing;
in time slots n+2, n+3, n+7, n+8, there is cross-link interference, assuming the current TA value is TA 0 Terminal uses TA 0 The first reference offset value, e.g., TA offset 1, is subtracted to obtain the first uplink transmission timing.
For the first reference offset value and the TA value to indicate separately, the uplink transmission timing of the target time domain resource is obtained based on the uplink transmission timing of the previous time domain resource of the target time domain resource, i.e. the cumulative calculation:
in time slot n, there is no cross-link interference, assuming that the current TA value is the TA value most recently indicated by the first network side device, e.g. TA 0 Terminal uses TA 0 Obtaining a second uplink transmission timing;
in time slot n+1, there is no cross-link interference and the terminal uses TA 0 Obtaining a second uplink transmission timing identical to the second uplink transmission timing used by the time slot n;
at time slot n +2, there is cross-link interference,terminal usage TA 0 Subtracting a first reference offset value, such as TA offset 1, to obtain a first uplink transmission timing, wherein the first reference offset value is subtracted from a second uplink transmission timing used by time slot n+1, and the accumulated TA value is TA 1 ＝TA 0 -TA offset 1；
In time slot n+3, there is cross-link interference, and the accumulated TA value is TA 1 Is a value updated by the TA offset operation, and the terminal uses the accumulated TA value, i.e., TA 1 Obtaining a first uplink transmission timing;
in time slot n+4, there is no cross-link interference, and the accumulated TA value is TA 1 Is a value updated by the TA offset operation, and the terminal uses the accumulated TA value, i.e., TA 1 Adding a second reference offset value, such as TA offset 2, to obtain a second uplink transmission timing, wherein the second reference offset value is added to the first uplink transmission timing used by the time slot n+3, and the accumulated TA value is updated to TA 2 ＝TA 1 +TA offset 2＝TA 0 -TA offset 1+TA offset 2；
In time slots n+5 and n+6, there is no cross-link interference, and the accumulated TA value is TA 2 Is a value updated by the TA compensation operation, and the terminal uses the accumulated TA value, i.e. TA 2 Obtaining a second uplink transmission timing; it can be seen that if TA offset1 is equal to TA offset 2, then the slot uses TA 0 As a second uplink transmission timing;
at time slot n+7, there is cross-link interference, and the accumulated TA value is TA 2 Is a value updated by the TA compensation operation, and the terminal uses the accumulated TA value, i.e. TA 2 Subtracting a first reference offset value, such as TA offset1, to obtain a first uplink transmission timing, and updating the current TA value to TA 3 ＝TA 2 -TA offset 1＝TA 0 -TAoffset 1+TA offset 2-TA offset 1；
At time slot n+8, there is cross-link interference, and the accumulated TA value is TA 3 Is a value updated by the TA offset operation, and the terminal uses the accumulated TA value, i.e., TA 3 Obtaining a first uplink transmission timing;
in time slot n+9, there is no cross-link interference and the accumulated TA value is still TA 3 Is a value updated by the TA offset operation, and the terminal uses the accumulated TA value, i.e., TA 3 Adding a second reference offset value, such as TAoffset 2, to obtain a second uplink transmission timing, and updating the current TA value to TA 4 ＝TA 3 +TA offset 2＝TA 0 -TA offset 1+TA offset 2-TA offset 1+TA offset 2。
And when the first time domain resource with the cross-link interference exists, the first uplink sending timing is determined based on the TA value obtained by performing the TA offset operation, and when the second time domain resource without the cross-link interference exists, the second uplink sending timing is determined based on the TA value obtained by performing the TA offset operation, so that the cross-link interference can be effectively processed in the first time domain resource, and the uplink channel and/or the uplink signal transmission in the second time domain resource can be ensured.
In an embodiment of the present application, the second network side device includes M devices with strongest interference among interference devices of the first network side device, where M is a positive integer.
In this embodiment of the present application, the first network side device may have multiple interference devices, and M strongest interference devices may be determined from the multiple interference devices, as the second network side device. And then determining a first reference offset value according to the signal arrival time of the second network side equipment. It can be considered that the second network side device has the largest influence on the cross-link interference of the first network side device, and the first reference offset value is determined according to the signal arrival time of the second network side device with the strongest interference, so that the cross-link interference problem of the strongest interference device can be effectively processed.
In one embodiment of the present application, the first network side device may determine the second network side device by:
the first step: the first network side equipment measures the reference signal of each interference equipment to obtain a measurement result;
and a second step of: and the first network side equipment determines M equipment with the strongest interference as second network side equipment according to the measurement result.
In this embodiment of the present application, the first network side device and other network side devices may interact TDD uplink and downlink configuration information and Reference Signal (RS) configuration information. The first network side device may measure a Reference Signal of each interfering device, for example, measure a channel state information Reference Signal (CSI-RS) or a synchronization Signal block (Synchronization Signal Block, SSB), to obtain a measurement result, determine M devices with strongest interference according to the measurement result, for example, determine M devices with strongest signals in the measurement result, and determine the determined M devices with strongest interference as the second network side device.
According to the measurement result of the reference signal of each interference device, the second network side device can be accurately determined, so as to further determine the first reference offset value according to the signal arrival time of the second network side device.
In one embodiment of the present application, the first reference offset value is: and the time difference between the time when the downlink signal of the second network side equipment reaches the first network side equipment and the downlink transmission timing of the second network side equipment.
It can be appreciated that, for the network side device, if cross-link interference of the interfering device is not considered, the network side device will use the downlink transmission timing of the network side device as a reference for the uplink transmission timing of the terminal. As shown in the upper half of fig. 7, the network device receives the uplink channel and/or the uplink signal at its own uplink timing. The network side equipment transmits a downlink signal according to the downlink transmission timing of the network side equipment, the downlink signal of the network side equipment reaches the terminal after a propagation delay Tp, the terminal obtains the downlink transmission timing of the network side equipment, and the terminal uses TA=2Tp as the uplink transmission timing based on the downlink transmission timing.
If the cross-link interference of the interfering device (e.g., another base station) to the network-side device is considered, the network-side device is the interfered device. The time when the signal sent by the interfering device according to the downlink sending timing of the interfering device arrives at the interfered device may have a delay, which may be referred to as TA offset, as shown in the lower half of fig. 7, if the uplink channel and/or the uplink signal of the terminal within the service range of the interfered device and the downlink signal of the interfering device can arrive at the interfered device at the same time, so that the timing alignment is achieved, the cancellation of the cross-link interference of the interfered device by the interfered device is facilitated, thereby improving the quality of the uplink received signal. This requires the interfered device to receive the uplink channel and/or uplink signal according to the arrival timing of the interfering device signal.
In this embodiment of the present application, a time difference between a time when a downlink signal of the second network side device arrives at the first network side device and a downlink transmission timing of the second network side device may be determined as a first reference offset value, i.e. TAoffset. After the terminal determines the first uplink sending timing according to the first indication information, the first uplink channel and/or the uplink signal sent according to the first uplink sending timing and the interference signal of the second network side equipment can reach the first network side equipment at the same time, so that the first network side equipment can eliminate the cross-link interference of the second network side equipment, and the uplink receiving signal quality is improved.
In one embodiment of the present application, the first uplink transmission timing is: difference between the TA value and the first reference offset value.
In this embodiment of the present application, after determining a first reference offset value according to the signal arrival time of the second network side device, the first network side device sends first indication information related to the first reference offset value to the terminal. The terminal may determine a first uplink transmission timing according to the first indication information, and the determined first uplink transmission timing may be a difference between the TA value and the first reference offset value. The TA value is a TA value recently indicated to the terminal by the first network side device.
Specifically, if the first indication information includes the first reference offset value, the terminal may subtract the first reference offset value from the TA value to obtain the first uplink transmission timing.
The difference value between the TA value and the first reference offset value is used as the first uplink transmission timing by the terminal in the service range of the first network side equipment, and the first uplink channel and/or the uplink signal transmitted according to the first uplink transmission timing and the downlink signal of the second network side equipment can reach the first network side equipment at the same time, so that the first network side equipment is beneficial to eliminating the cross-link interference of the second network side equipment.
In an embodiment of the present application, before the terminal determines the first uplink transmission timing according to the first indication information, the method may further include:
the terminal receives uplink scheduling downlink control information DCI from first network side equipment, and the uplink scheduling DCI indicates whether a first reference offset value is used or not.
After determining the first reference offset value according to the signal arrival time of the second network side device, the first network side device may indicate whether to use the first reference offset value in uplink scheduling downlink control information (Downlink Control Information, DCI) for the terminal. Specifically, a first reference offset value indication field may be added to the uplink scheduling DCI. If the threshold is indicated as 1, it indicates that the scheduled uplink channel and/or uplink signal needs to use the first reference offset value. If the threshold indicates 0, it means that the scheduled uplink channel and/or uplink signal does not use the first reference offset value.
The first network side device indicates whether to use the first reference offset value in the uplink scheduling DCI of the terminal, so that the terminal can timely and accurately determine whether to use the first reference offset value.
In one embodiment of the present application, the effective time of the first reference offset value indicated in the uplink scheduling DCI is protocol specified.
In the embodiment of the present application, the first network side device indicates whether to use the first reference offset value in the uplink scheduling DCI for the terminal. The effective time of the first reference offset value indicated in the uplink scheduling DCI may be protocol specified. For example, T after receiving DCI carrying the first reference offset value proc,2 +N TA_max Time is effective. Wherein T is proc,2 Is the preparation time of PUSCH, N TA_max Is the maximum time advance.
The protocol prescribes the effective time of the first reference offset value indicated by the uplink scheduling DCI, so that the consistency of TA offset behaviors of the terminals can be ensured.
In one embodiment of the present application, the first indication information may include at least one of: a plurality of first reference offset values; an active time domain resource for each first reference offset value; the duration of action of each first reference offset value.
It can be appreciated that in different time domain resources, the interference suffered by the first network side device may be the same or different, and the distances from the different second network side devices to the first network side device may be the same or different, and the cross-link interference situation suffered by the second network side device may also be different. Therefore, the first network side device may determine a plurality of first reference offset values according to the signal arrival time of the second network side device. For example, the first reference offset value determined by the first network side device in one time domain resource according to the signal arrival time of a certain second network side device is TA offset 1, and the first reference offset value determined by the first network side device in another time domain resource according to the signal arrival time of another second network side device is TA offset 2.
When there are a plurality of first reference offset values, the first indication information related to the first reference offset values may include the plurality of first reference offset values and an active time domain resource of each first reference offset value. If there are m first reference offset values, ceil (log) 2 (M)) bits, indicating M code points (codepoints) for representation.
Table 2 shows an example of when there are four first reference offset values (2 bits are required):
| code point | First reference offset value |
| 1 | TA offset 1 |
| 2 | TA offset 2 |
| 3 | TA offset 3 |
| 4 | TA offset 4 |
TABLE 2
Assuming that the active frequency domain resource is an active slot, the first indication information includes a plurality of first reference offset values and the active slot of each first reference offset value may be as shown in table 3:
TABLE 3 Table 3
As can be seen from table 3, the first reference offset values are four, including TA offset 1, TA offset 2, TA offset 3, and TA offset 4, the active time slot of TA offset 1 is the third time slot, the active time slot of TA offset 2 is the fourth time slot, the active time slot of TA offset 3 is the eighth time slot, and the active time slot of TA offset 4 is the ninth time slot.
The first indication information includes a plurality of first reference offset values and an acting time domain resource of each first reference offset value, so that after the terminal receives the first indication information, it can determine which first reference offset value is used in which time domain resource according to the first indication information, so as to accurately determine the first uplink transmission timing.
In this embodiment of the present application, the first indication information related to the first reference offset value may further include a duration of action of each first reference offset value. Optionally, for the first reference offset value indicated by the DCI, the first network side device may define or configure whether the first reference offset value indicated by the DCI is applicable to one time domain resource or a period of time, that is, a duration of action (t_duration) of the first reference offset value. The duration of action of the first reference offset value may be configured by RRC or indicated by DCI.
As shown in table 3, the first reference offset values include four slots, including TA offset 1, TA offset2, TA offset3, and TA offset4, where the active slot of TA offset 1 is the third slot, the active duration is t_duration 1, the active slot of TA offset2 is the fourth slot, the active duration is t_duration 2, the active slot of taoffset 3 is the eighth slot, the active duration is t_duration 3, the active slot of TA offset4 is the ninth slot, and the active duration is t_duration 4. Each first reference offset value is active during its corresponding active slot and active duration. For example, the uplink and downlink proportioning period is 10ms, the duration of the TA offset 1 is 20ms, and the TA offset 1 is used for the third time slot in the current 10ms, and the TA offset 1 is still used for the third time slot in the next 10 ms.
The first indication information includes a plurality of first reference offset values, an active time domain resource of each first reference offset value, and an active duration of each first reference offset value, so that after the terminal receives the first indication information, the terminal can determine which first reference offset value is used in which time domain resource according to the first indication information, and how long to use, so as to limit the use of the first reference offset values, and accurately determine the first uplink transmission timing.
In one embodiment of the present application, the method may further comprise the steps of:
the terminal receives a group public DCI from the first network side equipment, wherein the group public DCI is used for indicating whether a group of terminals use a first reference offset value in a first time domain resource with cross-link interference.
The first network side device may indicate which time domain resources use the first reference offset value through semi-static configuration or dynamically. For example, the time domain resource that needs to use the first reference offset value may be determined by indicating an offset of the time domain resource for one period.
The first network side device may also indicate, through the group common DCI, whether the terminal uses the first reference offset value at the first time domain resource where cross-link interference exists. The number of terminals may be plural, and plural terminals may form a group, that is, for a terminal group, the first network side device may give an indication simultaneously through the group common DCI.
For example, there are three terminals, namely terminal 1, terminal 2 and terminal 3, and the group common DCI may include the following information:
a first reference offset value and an indication of duration of action for terminal 1, and an indication of time domain resources of action for the first reference offset value;
a first reference offset value and an indication of duration of action for terminal 2, and an indication of time domain resources of action for the first reference offset value;
a first reference offset value and an active duration indication for terminal 3, and an active time domain resource indication of the first reference offset value.
The duration of the first reference offset value may be the same or different, and the time domain resources of the first reference offset value may be the same or different.
The network side equipment indicates whether a group of terminals use the first reference offset value in the first time domain resource with cross-link interference through the group public DCI, so that the indication efficiency can be improved.
In one embodiment of the present application, the first reference offset value is determined in a first set of reference offset values, the first set of reference offset values being determined according to a signal arrival time of the second network side device.
In this embodiment of the present application, the first network side device may obtain a plurality of first reference offset values according to the arrival time of the second network side device determined at different moments, and configure the first reference offset value set in advance. The first network side device may determine a first reference offset value from a first set of reference offset values. I.e. which first reference offset value to use may be dynamically indicated. This is beneficial for deployments where different TDD configurations are used between different cells, since the second network side device may not be the same for different time domain resources, and the distance of the different second network side device to the first network side device may be different. The method comprises the steps of firstly, pre-configuring a first reference offset value set according to the signal arrival time of interference equipment of second network side equipment, and then determining a first reference offset value in the first reference offset value set, so that the determined first reference offset value is more targeted to processing current cross-link interference.
In an embodiment of the present application, the first reference offset values corresponding to different first time domain resources where cross-link interference exists are the same, or the first reference offset value corresponding to each first time domain resource where cross-link interference exists is a value after accumulating the first reference offset value corresponding to the first time domain resource where cross-link interference exists before.
The processing of the cross-link interference in the embodiment of the present application is mainly aimed at the cross-link interference of other network side devices to the first network side device, for example, the cross-link interference of the gNB to the gNB a. If the network side device is not mobile, the first reference offset value determined from the signal arrival time of the second network side device to the first network side device will be a fixed value, i.e. an absolute value. That is, for an interfering device, the first reference offset values corresponding to different first time domain resources with cross-link interference are the same, and the terminal can use the TA value to subtract the first reference offset value to obtain the first uplink transmission timing at each first time domain resource.
If the signal arrival time from different interference devices to the network side device of different time domain resources is considered, the determined first reference offset value may be an accumulated value, that is, the first reference offset value corresponding to each first time domain resource with cross-link interference is a value after accumulating the first reference offset value corresponding to the first time domain resource with cross-link interference. As shown in table 4:
TABLE 4 Table 4
As can be seen from table 4, the first reference offset value used by Slot n is TAoffset1, the first reference offset value used by Slot n+1 is TAoffset1+Adjustment offset1,Slot n+2, the first reference offset value used by TAoffset1+ Adjustment offset1+Adjustment offset 2, …, and the first reference offset value used by Slot n+k is TAoffset1+ Adjustment offset1+Adjustment offset 2+ … + Adjustment offset k. Adjustment offset k may be positive or negative. The determination may be by a higher layer configuration or dynamic indication.
The first reference offset values corresponding to different first time domain resources with cross-link interference are the same, or the first reference offset value corresponding to each first time domain resource with cross-link interference is a value obtained by accumulating the first reference offset value corresponding to the first time domain resource with cross-link interference before, so that how to use the first reference offset value to make clear when the terminal determines the first uplink transmission timing is beneficial to accurately determining the first uplink transmission timing.
In one embodiment of the present application, the method may further comprise the steps of:
and the terminal transmits a second uplink channel and/or an uplink signal on a second time domain resource without cross-link interference according to a scheduling instruction of the first network side equipment.
The terminal technology is continuously developed, some terminals may not have TA offset capability, the first network side device may acquire the terminal capability through interaction with the terminals in the service range of the first network side device, and if the terminal is determined not to have TA offset capability, the terminal may be scheduled to a second time domain resource without cross-link interference. Because the terminal does not have TA offset capability, the problem of cross-link interference cannot be effectively processed through TA offset, the terminal is scheduled to a second time domain resource without cross-link interference, and the problem of cross-link interference when an uplink channel and/or an uplink signal of the terminal are received can be avoided through scheduling limitation.
In one embodiment of the present application, the method may further comprise the steps of:
the terminal performs at least one of the following when a channel or signal transmitted by two adjacent time domain resources overlaps, when a first time domain resource with cross-link interference exists and a second time domain resource without cross-link interference exists, or when a first time domain resource with cross-link interference exists and a downlink time domain resource exists and the adjacent two time domain resources overlap:
not transmitting a subsequent channel or signal in the previous time domain resource;
performing rate matching or puncturing processing on a later channel or signal in the previous time domain resource;
and performing rate matching or puncturing processing on the previous channel or signal in the latter time domain resource.
In the implementation of the present application, for the first network side device, there may be both a first time domain resource where cross-link interference exists and a second time domain resource where cross-link interference does not exist.
And when the TA value is not available, the terminal can determine the uplink transmission timing, and channels or signals transmitted by two adjacent time domain resources can overlap due to TA offset, so that resource interference of different time domain resources, such as intersymbol interference of different time slots, is caused. For example, a channel or signal transmitted by two adjacent time domain resources may overlap partially, with a first time domain resource where cross-link interference is present followed by a second time domain resource where cross-link interference is not present, or a downlink time domain resource followed by a first time domain resource where cross-link interference is present.
As in fig. 7, there is an overlap of the transmitted channels or signals for slots slot n+1 and slot n+2. In this case, the first network-side device may transmit the third indication information to the terminal. After receiving the third indication information, the terminal may not send a subsequent channel or signal in the previous time domain resource and/or perform rate matching (rate matching) or puncturing (puncturing) on the subsequent channel or signal in the previous time domain resource and/or perform rate matching or puncturing on the previous channel or signal in the subsequent time domain resource when a second time domain resource having no cross-link interference is immediately after the first time domain resource having cross-link interference or a downlink time domain resource is immediately after the first time domain resource having cross-link interference is present. In this way interference between time domain resources can be avoided. It should be noted that, the above-mentioned actions performed by the terminal may also be performed according to a protocol specification.
For example, in fig. 7, the time-domain scheduling length of the slot n+1 may be shortened, that is, a channel or a signal transmitted by one or several symbols after the slot is not transmitted, so as to avoid interference to the symbol transmission of the slot n+2, and the terminal may also perform rate matching or puncturing processing. The channel or signal of the symbol transmission in front of slot n+2 may also be rate matched or punctured to avoid interference to the symbol transmission of slot n+1.
Through the configuration of the first network side device, the first network side device can determine the specific content of the third indication information sent to the terminal.
In one embodiment of the present application, the TA value is independent of the first reference offset value.
In this embodiment of the present application, the TA values used by the terminal and the first network side device are the TA values indicated to the terminal by the first network side device, and are independent of the first reference offset value, and do not affect each other.
In an embodiment of the present application, the first indication information may include a new TA value, where the new TA value is obtained by updating the TA value according to the first reference offset value.
In this embodiment of the present application, after the first network side device determines the first reference offset value, the TA value may be updated according to the first reference offset value, where the updated TA value may be a TA value recently indicated to the terminal by the first network side device. A new TA value may be obtained after updating. The difference between the currently used TA value and the first reference offset value may be defined as a new TA value. As shown in table 5, the new TA value corresponding to the Slot n is ta_sum 1, the new TA value corresponding to the Slot n+1 is ta_sum 2, the new TA value corresponding to the Slot n+2 is ta_sum 3, …, and the new TA value corresponding to the Slot n+k is ta_sum k. This corresponds to the simultaneous TA offset operation.
| Time slots | Slot n | Slot n+1 | Slot n+2 | … | Slot n+k |
| New TA value | TA_sum 1 | TA_sum 2 | TA_sum 3 | … | TA_sum k |
TABLE 5
The new TA value may use new TA granularity, and the new TA value may be a positive value or a negative value, for example, the second network side device is far away from the first network side device, and the obtained new TA value may be a negative value. This allows a better matching of the timing of the signals of the different interfering devices to the first network side device. The adjustment of the new TA value may be indicated by DCI.
In one embodiment of the present application, the active time domain resource of the first reference offset value is determined according to a slot type.
In this embodiment of the present application, the first network side device may determine the active time domain resource of the first reference offset value according to the timeslot type, and indicate the active time domain resource to the terminal, where the terminal may obtain the active time domain resource of the first reference offset value.
Specifically, the first network side device may configure the first reference offset value to only act on the time domain resources configured as uplink by the semi-static state, or the first network side device configures the first reference offset value to only act on the time domain resources indicated as flexible by the semi-static state, or the first network side device configures the first reference offset value to simultaneously act on the time domain resources and the flexible time domain resources in the semi-static state.
Without loss of generality, the first network side device may also indicate the type of active time domain resources for other configuration information.
For example, frequency domain format indication information (frequency format indication, FFI) for one slot, i.e., indication information indicating the transmission direction of a subband on one symbol. The first network side device may configure the slot type in which it acts, e.g., the first network side device may configure the FFI to act only on semi-static downstream slots, or the first network side device may configure the FFI to act only on semi-static upstream slots, or the first network side device may configure the FFI to act only on semi-static flexible slots, or the first network side device may configure the FFI to act only on slots containing SSBs, or the first network side device may configure the FFI to act only on slots not containing SSBs.
According to the uplink transmission method provided by the embodiment of the application, the execution main body can be an uplink transmission device. In this embodiment, an uplink transmission device executes an uplink transmission method by using an uplink transmission device as an example, and the uplink transmission device provided in the embodiment of the present application is described.
Referring to fig. 8, the uplink transmission apparatus 800 may include the following modules:
a first receiving module 810, configured to receive first indication information from a first network side device, where the first indication information is related to a first reference offset value, and the first reference offset value is related to a signal arrival time of a second network side device;
A first determining module 820, configured to determine a first uplink transmission timing according to the first indication information;
the first transmitting module 830 is configured to transmit the first uplink channel and/or the uplink signal according to the first uplink transmission timing.
By applying the device provided by the embodiment of the application, the first uplink sending timing is determined according to the first indication information received from the first network side equipment, and the first uplink channel and/or the uplink signal is sent according to the first uplink sending timing. The first indication information is related to a first reference offset value, and the first reference offset value is related to the signal arrival time of the second network side equipment, so that after the first uplink channel and/or the uplink signal sent according to the first uplink sending timing reaches the first network side equipment, the first uplink channel and/or the uplink signal of the terminal received by the first network side equipment can be aligned with the downlink signal of the second network side equipment, the downlink signal of the second network side equipment is eliminated, the problem of cross-link interference between the network side equipment is effectively processed, and the performance of a communication system can be improved.
In a specific embodiment of the present application, the first determining module 820 is configured to:
And determining a first uplink transmission timing according to the first indication information in the presence of the first time domain resource of the cross-link interference.
In a specific embodiment of the present application, the first receiving module 810 is further configured to:
receiving second indication information from the first network side equipment, wherein the second indication information comprises configuration information of the first time domain resource; alternatively, the second indication information includes dynamic indication information of the first time domain resource.
In a specific embodiment of the present application, the first determining module 820 is further configured to:
determining a second uplink transmission timing according to the TA value in the second time domain resource without cross-link interference;
the first sending module 830 is further configured to:
and transmitting the second uplink channel and/or the uplink signal according to the second uplink transmission timing.
In a specific embodiment of the present application, the first indication information includes a first reference offset value, where the first reference offset value and the TA value are separately indicated, and uplink transmission timing of each time domain resource is independently determined;
or the first indication information comprises a first reference offset value, the first reference offset value and the TA value are independently indicated, and the uplink transmission timing of the target time domain resource is obtained based on the uplink transmission timing of the previous time domain resource of the target time domain resource;
Or, the first indication information includes a difference value between the TA value and a first reference offset value, the first reference offset value and the TA value are indicated jointly, and the uplink transmission timing of each time domain resource is determined independently.
In a specific embodiment of the present application, the second network side device includes M devices with strongest interference among interference devices of the first network side device, where M is a positive integer.
In one embodiment of the present application, the first reference offset value is: and the time difference between the time when the downlink signal of the second network side equipment reaches the first network side equipment and the downlink transmission timing of the second network side equipment.
In one specific embodiment of the present application, the first uplink transmission timing is: difference between the TA value and the first reference offset value.
In a specific embodiment of the present application, the first receiving module 810 is further configured to:
and before determining the first uplink transmission timing according to the first indication information, receiving uplink scheduling Downlink Control Information (DCI) from the first network side equipment, wherein whether the first reference offset value is used or not is indicated in the uplink scheduling DCI.
In a specific embodiment of the present application, the effective time of the first reference offset value indicated in the uplink scheduling DCI is protocol-specified.
In one specific embodiment of the present application, the first indication information includes at least one of:
a plurality of first reference offset values;
an active time domain resource for each first reference offset value;
the duration of action of each first reference offset value.
In a specific embodiment of the present application, the first receiving module 810 is further configured to:
a group common DCI is received from a first network side device, the group common DCI being used to indicate whether a group of terminals uses a first reference offset value at a first time domain resource where cross-link interference exists.
In a specific embodiment of the present application, the first reference offset value is determined in a first reference offset value set, where the first reference offset value set is determined according to a signal arrival time of the second network side device.
In a specific embodiment of the present application, the first reference offset values corresponding to different first time domain resources with cross-link interference are the same, or the first reference offset value corresponding to each first time domain resource with cross-link interference is a value after accumulating the first reference offset value corresponding to the previous first time domain resource with cross-link interference.
In a specific embodiment of the present application, the first sending module 830 is further configured to:
And according to the scheduling instruction of the first network side equipment, transmitting a second uplink channel and/or an uplink signal on a second time domain resource without cross-link interference.
In a specific embodiment of the present application, the method further includes an execution module for:
at least one of the following is performed in case of an overlap of channels or signals transmitted by two adjacent time domain resources, immediately after a first time domain resource where cross-link interference is present and immediately after a second time domain resource where cross-link interference is not present, or immediately after a first time domain resource where cross-link interference is present:
not transmitting a subsequent channel or signal in the previous time domain resource;
and performing rate matching or puncturing processing on the previous channel or signal in the latter time domain resource.
In a specific embodiment of the present application, the first indication information includes a new TA value, where the new TA value is obtained by updating the TA value according to the first reference offset value.
The uplink transmission device provided in the embodiment of the present application can implement each process implemented by the method embodiment shown in fig. 6, and achieve the same technical effects, so that repetition is avoided, and no further description is given here.
Corresponding to the above method embodiment, another uplink transmission method is further provided in this embodiment, as shown in fig. 9, and the method may include the following steps:
S910: the first network side equipment determines a first reference offset value according to the signal arrival time of the second network side equipment;
s920: the first network side equipment sends first indication information to the terminal, wherein the first indication information is related to a first reference offset value;
s930: the first network side equipment receives a first uplink channel and/or an uplink signal from the terminal according to a first uplink receiving timing, wherein the first uplink receiving timing is related to a first reference offset value.
By applying the method provided by the embodiment of the application, the first network side equipment determines the first reference offset value according to the signal arrival time of the second network side equipment, sends the first indication information related to the first reference offset value to the terminal, and receives the first uplink channel and/or the uplink signal of the terminal according to the first uplink receiving timing, so that the first network side equipment can align the received first uplink channel and/or the uplink signal of the terminal with the downlink signal of the second network side equipment, and eliminates the downlink signal of the second network side equipment, thereby effectively solving the problem of cross-link interference between the network side equipment and improving the performance of a communication system.
In a specific embodiment of the present application, further comprising:
The first network side equipment sends second indication information to the terminal, wherein the second indication information comprises configuration information of first time domain resources with cross-link interference; alternatively, the second indication information includes dynamic indication information of the first time domain resource.
In a specific embodiment of the present application, the second indication information further includes configuration information of a second time domain resource where cross-link interference exists, or the second indication information further includes dynamic indication information of the second time domain resource.
In a specific embodiment of the present application, further comprising:
the first network side equipment receives a second uplink channel and/or an uplink signal from the terminal according to a second uplink receiving timing, wherein the second uplink receiving timing is related to the TA value.
In a specific embodiment of the present application, the first indication information includes a first reference offset value, where the first reference offset value and the TA value are separately indicated, and uplink transmission timing of each time domain resource is independently determined;
or the first indication information comprises a first reference offset value, the first reference offset value and the TA value are independently indicated, and the uplink transmission timing of the target time domain resource is obtained based on the uplink transmission timing of the previous time domain resource of the target time domain resource;
Or, the first indication information includes a difference value between the TA value and a first reference offset value, the first reference offset value and the TA value are indicated jointly, and the uplink transmission timing of each time domain resource is determined independently.
In a specific embodiment of the present application, the second network side device includes M devices with strongest interference among interference devices of the first network side device, where M is a positive integer.
In one embodiment of the present application, the first reference offset value is: and the time difference between the time when the downlink signal of the second network side equipment reaches the first network side equipment and the downlink transmission timing of the second network side equipment.
In one specific embodiment of the present application, the first uplink transmission timing is: difference between the TA value and the first reference offset value.
In a specific embodiment of the present application, further comprising:
the first network side equipment sends uplink scheduling Downlink Control Information (DCI) to the terminal, and the DCI indicates whether a first reference offset value is used or not.
In a specific embodiment of the present application, the effective time of the first reference offset value indicated in the uplink scheduling DCI is protocol-specified.
In one specific embodiment of the present application, the first indication information includes at least one of:
A plurality of first reference offset values;
an active time domain resource for each first reference offset value;
the duration of action of each first reference offset value.
In a specific embodiment of the present application, further comprising:
the first network side equipment sends a group public DCI to the terminals, wherein the group public DCI is used for indicating whether a group of terminals use a first reference offset value in a first time domain resource with cross-link interference.
In a specific embodiment of the present application, the first reference offset value is determined in a first reference offset value set, where the first reference offset value set is determined according to a signal arrival time of the second network side device.
In a specific embodiment of the present application, the first reference offset values corresponding to different first time domain resources with cross-link interference are the same, or the first reference offset value corresponding to each first time domain resource with cross-link interference is a value after accumulating the first reference offset value corresponding to the previous first time domain resource with cross-link interference.
In a specific embodiment of the present application, further comprising:
the first network side equipment sends a scheduling instruction to the terminal, wherein the scheduling instruction is used for scheduling the terminal to a second time domain resource without cross-link interference.
In a specific embodiment of the present application, further comprising:
the first network side equipment sends third indication information to the terminal, wherein the third indication information is used for indicating the terminal to execute at least one of the following under the condition that a channel or signal transmitted by two adjacent time domain resources overlaps after a first time domain resource with cross-link interference exists or a second time domain resource without cross-link interference exists after a first time domain resource with cross-link interference exists:
not transmitting a subsequent channel or signal in the previous time domain resource;
and performing rate matching or puncturing processing on the previous channel or signal in the latter time domain resource.
In a specific embodiment of the present application, the first indication information includes a new TA value, where the new TA value is obtained by updating the TA value according to the first reference offset value.
In a specific embodiment of the present application, further comprising:
the first network side equipment and the second network side equipment exchange reference information;
wherein the reference information includes at least one of:
demodulation reference signal type;
a code division multiplexing group of demodulation reference signals;
an additional demodulation reference signal;
Scrambling code identification;
demodulation reference signal sequence initialization parameters.
In a specific embodiment of the present application, the interaction granularity of the reference information is a subband or a resource block.
In this embodiment of the present application, reference information may be exchanged between the first network side device and other network side devices, and the other network side devices may include interference devices of the network side devices. Specifically, reference information can be interacted between the network side device and the second network side device through an Xn interface. The reference information may include at least one of:
demodulation reference signal (Demodulation Reference Signal, DMRS) types, e.g., type 1, type 2;
code division multiplexing (Code Division Multiplexing, CDM) groups of demodulation reference signals;
an additional demodulation reference signal (additional DMRS);
a scrambling code identification, such as a scrambling code ID,
demodulation reference signal sequence initialization parameters, e.g. n SCID ；
The interaction of the above reference information between the first network side device and the second network side device is helpful for the first network side device to recover the downlink signal of the second network side device according to the reference information, and the cross-link interference of the second network side device is eliminated.
The interaction granularity of the reference information may be a subband or a Resource Block (RB), so that the first network side device may acquire the reference information of the second network side device in time.
In a specific embodiment of the present application, further comprising:
the method comprises the steps that uplink power control is conducted by first network side equipment in a first time domain resource with cross-link interference;
and/or the number of the groups of groups,
the first network side equipment sends interference notification information to the second network side equipment, wherein the interference notification information is used for notifying the second network side equipment to reduce interference.
In the embodiment of the application, the first network side device can perform uplink power control when the first time domain resource with cross-link interference exists, so that the strength of the received expected signal is improved. Specifically, the first network side device may configure another power control parameter for the terminal, which is dedicated for use in the first time domain resource where cross-link interference exists. This can increase the uplink transmit power of the terminals in service range to combat cross-link interference.
The first network side device may also send interference notification information to the second network side device, where the interference notification information is used to notify the second network side device to reduce interference. The second network side device can reduce interference to the first network side device by reducing the transmitting power and the like. The second network side equipment reduces interference, is favorable for the first network side equipment to correctly receive the uplink channel and/or the uplink signal of the terminal, and improves the uplink transmission quality.
In a specific embodiment of the present application, the sending, by the first network side device, interference notification information to the second network side device includes:
the first network side equipment sends interference notification information to the second network side equipment by utilizing an interference special sequence;
or the first network side equipment sends the interference notification information to the second network side equipment through the physical layer special signaling;
or the first network side equipment sends the interference notification information to the second network side equipment through the Xn interface.
In a specific embodiment of the present application, further comprising:
the first network side equipment and the second network side equipment interactively interfere with the time domain position or the frequency domain position sent by the special sequence.
In this embodiment of the present application, the first network side device may send the interference notification information to the second network side device by using an interference dedicated sequence, where the interference dedicated sequence may be a ZC sequence.
When the second network side equipment detects the interference special sequence sent by the first network side equipment, the first network side equipment is known to be subject to strong interference, and corresponding measures can be taken to reduce the interference. The first network side device and the second network side device can interact with the time domain position or the frequency domain position of the interference special sequence to ensure that the interference special sequence interacted by the first network side device and the second network side device can be smoothly sent and received.
The first network side device can also send interference notification information to the second network side device through the physical layer dedicated signaling so as to inform the second network side device that the second network side device is experiencing strong interference, and the second network side device can take corresponding measures to reduce the interference.
The first network side device may also send interference notification information to the second network side device through the Xn interface.
In one embodiment of the present application, the interference notification information includes interference level indication information, and/or interfered resource block information.
The interference notification information sent by the first network side device to the second network side device may include interference level indication information, where the interference level indication information may indicate different degrees of interference through X bits, and X > =1, for example, there may be n interference level indications shown in table 6, such as Interference level 1, interference level 2, …, interference level n, etc. The second network side device may adjust the corresponding downlink power or Modulation and coding scheme (Modulation and CodingScheme, MCS) according to the interference level indication information.
| Code point | Interference level indication |
| Codepoint 1 | Interference level 1 |
| Codepoint 2 | Interference level 2 |
| … | … |
| Codepoint n | Interference level n |
TABLE 6
The interference notification information sent by the first network side device to the second network side device may further include resource block information that is interfered, and the first network side device notifies the second network side device which resource blocks are strongly interfered, so that the second network side device can perform the interference reduction operation in a targeted manner on the corresponding resource blocks.
In a specific embodiment of the present application, further comprising:
the method comprises the steps that first network side equipment receives pilot frequency configuration information of second network side equipment;
the first network side equipment determines the signal receiving timing of the second network side equipment according to the pilot frequency configuration information, and receives the downlink signal of the second network side equipment according to the signal receiving timing.
In this embodiment of the present application, pilot configuration information may be exchanged between the first network side device and other network side devices, where the other network side devices include interference devices of the first network side device, such as the second network side device. After receiving the pilot configuration information of the second network side device, the first network side device may determine signal receiving timing of the second network side device according to the pilot configuration information. In the presence of the first Time domain resource of cross-link interference, the second network side device may transmit pilot configuration information including a preamble (preamble), guard Time (GT), and data, which may be PDSCH. The first network side device can determine the signal receiving timing of the second network side device according to the pilot frequency configuration information, so that the signal of the interference device can be received according to the signal receiving timing. In this way, the first network side device may not instruct the terminal to perform TA offset, and may perform reception of an uplink channel and/or an uplink signal of the terminal according to the uplink reception timing of the terminal, without aligning the timing of the second network side device.
The uplink transmission method provided in the embodiment of the present application and each process implemented in the embodiment of the method shown in fig. 6 may be referred to each other, and achieve the same technical effects, so that repetition is avoided, and no further description is given here.
According to the uplink transmission method provided by the embodiment of the application, the execution main body can be an uplink transmission device. In this embodiment, an uplink transmission device executes an uplink transmission method by using an uplink transmission device as an example, and the uplink transmission device provided in the embodiment of the present application is described.
Referring to fig. 10, the uplink transmission apparatus 1000 may include the following modules:
a second determining module 1010, configured to determine a first reference offset value according to a signal arrival time of the second network side device;
a second transmitting module 1020, configured to transmit first indication information to the terminal, where the first indication information is related to the first reference offset value;
the second receiving module 1030 is configured to receive the first uplink channel and/or the uplink signal from the terminal according to a first uplink receiving timing, where the first uplink receiving timing is related to the first reference offset value.
By using the device provided by the embodiment of the application, the first reference offset value is determined according to the signal arrival time of the second network side equipment, the first indication information related to the first reference offset value is sent to the terminal, and the first uplink channel and/or uplink signal of the terminal is received according to the first uplink receiving timing, so that the received first uplink channel and/or uplink signal of the terminal is aligned with the downlink signal of the second network side equipment, the downlink signal of the second network side equipment is eliminated, the problem of cross-link interference between the network side equipment is effectively processed, and the performance of the communication system can be improved.
In a specific embodiment of the present application, the second sending module 1020 is further configured to:
transmitting second indication information to the terminal, wherein the second indication information comprises configuration information of first time domain resources with cross-link interference; alternatively, the second indication information includes dynamic indication information of the first time domain resource.
In a specific embodiment of the present application, the second indication information further includes configuration information of a second time domain resource where cross-link interference exists, or the second indication information further includes dynamic indication information of the second time domain resource.
In a specific embodiment of the present application, the second receiving module 1030 is further configured to:
and receiving a second uplink channel and/or an uplink signal from the terminal according to a second uplink receiving timing, wherein the second uplink receiving timing is related to the TA value.
In a specific embodiment of the present application, the first indication information includes a first reference offset value, where the first reference offset value and the TA value are separately indicated, and uplink transmission timing of each time domain resource is independently determined;
or the first indication information comprises a first reference offset value, the first reference offset value and the TA value are independently indicated, and the uplink transmission timing of the target time domain resource is obtained based on the uplink transmission timing of the previous time domain resource of the target time domain resource;
Or, the first indication information includes a difference value between the TA value and a first reference offset value, the first reference offset value and the TA value are indicated jointly, and the uplink transmission timing of each time domain resource is determined independently.
The embodiment of the application is characterized in that the second network side device includes M devices with strongest interference among interference devices of the first network side device, where M is a positive integer.
In one embodiment of the present application, the first reference offset value is: and the time difference between the time when the downlink signal of the second network side equipment reaches the first network side equipment and the downlink transmission timing of the second network side equipment.
In one specific embodiment of the present application, the first uplink transmission timing is: difference between the TA value and the first reference offset value.
In a specific embodiment of the present application, the second sending module 1020 is further configured to:
and sending uplink scheduling Downlink Control Information (DCI) to the terminal, wherein the uplink scheduling DCI indicates whether the first reference offset value is used or not.
In a specific embodiment of the present application, the effective time of the first reference offset value indicated in the uplink scheduling DCI is protocol-specified.
In one specific embodiment of the present application, the first indication information includes at least one of:
A plurality of first reference offset values; an active time domain resource for each first reference offset value;
the duration of action of each first reference offset value.
In a specific embodiment of the present application, the second sending module 1020 is further configured to:
and transmitting a group common DCI to the terminals, wherein the group common DCI is used for indicating whether a group of terminals use a first reference offset value in a first time domain resource with cross-link interference.
In a specific embodiment of the present application, the first reference offset value is determined in a first reference offset value set, where the first reference offset value set is determined according to a signal arrival time of the second network side device.
In a specific embodiment of the present application, the first reference offset values corresponding to different first time domain resources with cross-link interference are the same, or the first reference offset value corresponding to each first time domain resource with cross-link interference is a value after accumulating the first reference offset value corresponding to the previous first time domain resource with cross-link interference.
In a specific embodiment of the present application, the second sending module 1020 is further configured to:
and sending a scheduling instruction to the terminal, wherein the scheduling instruction is used for scheduling the terminal to a second time domain resource without cross-link interference.
In a specific embodiment of the present application, the second sending module 1020 is further configured to:
transmitting third indication information to the terminal, where the third indication information is used to instruct the terminal to perform at least one of the following when a channel or signal transmitted by two adjacent time domain resources overlaps, where the channel or signal is immediately adjacent to a second time domain resource where cross-link interference does not exist after a first time domain resource where cross-link interference exists, or immediately adjacent to a downlink time domain resource after a first time domain resource where cross-link interference exists:
not transmitting a subsequent channel or signal in the previous time domain resource;
and performing rate matching or puncturing processing on the previous channel or signal in the latter time domain resource.
In a specific embodiment of the present application, the first indication information includes a new TA value, where the new TA value is obtained by updating the TA value according to the first reference offset value.
In a specific embodiment of the present application, the method further includes a first interaction module, configured to:
interacting reference information with the second network side equipment;
wherein the reference information includes at least one of:
demodulation reference signal type;
a code division multiplexing group of demodulation reference signals;
an additional demodulation reference signal;
Scrambling code identification;
demodulation reference signal sequence initialization parameters.
In a specific embodiment of the present application, the interaction granularity of the reference information is a subband or a resource block.
In a specific embodiment of the present application, further comprising:
the control module is used for controlling uplink power when the first time domain resource with cross-link interference exists;
and/or the number of the groups of groups,
and the third sending module is used for sending interference notification information to the second network side equipment, wherein the interference notification information is used for notifying the second network side equipment to reduce interference.
In a specific embodiment of the present application, the third sending module is configured to:
transmitting interference notification information to the second network device by using the interference dedicated sequence;
or, sending the interference notification information to the second network side equipment through the physical layer dedicated signaling;
or, sending the interference notification information to the second network side equipment through the Xn interface.
In a specific embodiment of the present application, the method further includes a second interaction module, configured to:
and interacting with the second network side equipment to interfere with the time domain position or the frequency domain position of the special sequence transmission.
In one embodiment of the present application, the interference notification information includes interference level indication information, and/or interfered resource block information.
In a specific embodiment of the present application, the apparatus further includes a third receiving module, configured to:
receiving pilot frequency configuration information of second network side equipment;
and determining the signal receiving timing of the second network side equipment according to the pilot frequency configuration information, and receiving the downlink signal of the second network side equipment according to the signal receiving timing.
The uplink transmission device provided in this embodiment of the present application can implement each process implemented by the method embodiment shown in fig. 9, and achieve the same technical effects, so that repetition is avoided, and no further description is given here.
Corresponding to the above method embodiment, as shown in fig. 11, the embodiment of the present application further provides a communication device 1100, including a processor 1101 and a memory 11902, where the memory 1102 stores a program or instructions executable on the processor 1101. For example, when the communication device 1100 is a network-side device, the program or instructions, when executed by the processor 1101, implement the steps of the method embodiment shown in fig. 9 and achieve the same technical effects. When the communication device 1100 is a terminal, the program or the instructions when executed by the processor 1101 implement the steps of the method embodiment shown in fig. 6 and achieve the same technical effects, and are not repeated herein.
Specifically, the embodiment of the application also provides network side equipment. As shown in fig. 12, the network side device 1200 includes: an antenna 1201, a radio frequency device 1202, a baseband device 1203, a processor 1204, and a memory 1205. The antenna 1201 is connected to a radio frequency device 1202. In the uplink direction, the radio frequency device 1202 receives information via the antenna 1201 and transmits the received information to the baseband device 1203 for processing. In the downlink direction, the baseband device 1203 processes information to be transmitted, and transmits the processed information to the radio frequency device 1202, and the radio frequency device 1202 processes the received information and transmits the processed information through the antenna 1201.
The method performed by the network side device in the above embodiment may be implemented in the baseband apparatus 1203, and the baseband apparatus 1203 includes a baseband processor.
The baseband device 1203 may, for example, include at least one baseband board, where a plurality of chips are disposed, as shown in fig. 12, where one chip, for example, a baseband processor, is connected to the memory 1205 through a bus interface, so as to call a program in the memory 1205 to perform the network device operation shown in the above method embodiment.
The network-side device may also include a network interface 1206, such as a common public radio interface (common public radio interface, CPRI).
Specifically, the network side device 1200 of the embodiment of the present application further includes: instructions or programs stored in the memory 1205 and executable on the processor 1204, the processor 1204 invokes the instructions or programs in the memory 1205 to perform the method performed by the modules shown in fig. 10 and achieve the same technical effects, and are not described herein in detail for the sake of avoiding repetition.
Specifically, the embodiment of the present application further provides a terminal, as shown in fig. 13, where the terminal 1300 includes, but is not limited to: at least some of the components of the radio frequency unit 1301, the network module 1302, the audio output unit 1303, the input unit 1304, the sensor 1305, the display unit 1306, the user input unit 1307, the interface unit 1308, the memory 1309, the processor 1310, and the like.
Those skilled in the art will appreciate that the terminal 1300 may further include a power source (e.g., a battery) for supplying power to the various components, and the power source may be logically connected to the processor 1310 through a power management system, so as to perform functions of managing charging, discharging, and power consumption management through the power management system. The terminal structure shown in fig. 13 does not constitute a limitation of the terminal, and the terminal may include more or less components than shown, or may combine certain components, or may be arranged in different components, which will not be described in detail herein.
It should be appreciated that in embodiments of the present application, the input unit 1304 may include a graphics processing unit (Graphics Processing Unit, GPU) 13041 and a microphone 13042, with the graphics processor 13041 processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The display unit 1306 may include a display panel 13061, and the display panel 13061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 1307 includes at least one of a touch panel 13071 and other input devices 13072. The touch panel 13071 is also referred to as a touch screen. The touch panel 13071 can include two parts, a touch detection device and a touch controller. Other input devices 13072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and so forth, which are not described in detail herein.
In this embodiment of the present application, after receiving downlink data from the network side device, the radio frequency unit 1301 may transmit the downlink data to the processor 1310 for processing; in addition, the radio frequency unit 1301 may send uplink data to the network side device. Typically, the radio unit 1301 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
Memory 1309 may be used to store software programs or instructions and various data. The memory 1309 may mainly include a first memory area storing programs or instructions and a second memory area storing data, wherein the first memory area may store an operating system, application programs or instructions (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. Further, the memory 1309 may include volatile memory or nonvolatile memory, or the memory 1309 may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM), static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (ddr SDRAM), enhanced SDRAM (Enhanced SDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DRRAM). Memory 1309 in embodiments of the present application includes, but is not limited to, these and any other suitable types of memory.
The processor 1310 may include one or more processing units; optionally, processor 1310 integrates an application processor that primarily handles operations related to the operating system, user interface, and applications, and a modem processor that primarily handles wireless communication signals, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 1310.
The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored, where the program or the instruction realizes each process of the method embodiment shown in fig. 6 or fig. 9 when being executed by a processor, and the process can achieve the same technical effect, so that repetition is avoided and no further description is given here.
Wherein the processor is a processor in the communication device in the above embodiment. Readable storage media include computer readable storage media such as computer readable memory ROM, random access memory RAM, magnetic or optical disks, and the like.
The embodiments of the present application further provide a computer program/program product, where the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement each process of the method embodiments shown in fig. 6 or fig. 9 and achieve the same technical effects, and are not repeated herein.
The embodiment of the application also provides a communication system, which comprises: the terminal and the network side device, the terminal may be used to execute the steps of the method shown in fig. 6, and the network side device may be used to execute the steps of the method shown in fig. 9.
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 one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solutions of the present application may be embodied essentially or in a part contributing to the prior art in the form of a computer software product stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk), comprising several instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method described in the embodiments of the present application.
The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are also within the protection of the present application.
Claims (35)
1. An uplink transmission method, comprising:
the terminal receives first indication information from first network side equipment, wherein the first indication information is related to a first reference offset value, and the first reference offset value is related to signal arrival time of second network side equipment;
the terminal determines a first uplink sending timing according to the first indication information;
and the terminal transmits a first uplink channel and/or an uplink signal according to the first uplink transmission timing.
2. The uplink transmission method according to claim 1, wherein the determining, by the terminal, the first uplink transmission timing according to the first indication information includes:
and the terminal determines a first uplink sending timing according to the first indication information when the first time domain resource with cross-link interference exists.
3. The uplink transmission method according to claim 2, further comprising:
the terminal receives second indication information from the first network side equipment, wherein the second indication information comprises configuration information of the first time domain resource; or, the second indication information includes dynamic indication information of the first time domain resource.
4. The uplink transmission method according to claim 2, further comprising:
the terminal determines a second uplink sending timing according to the TA value when a second time domain resource with cross-link interference does not exist;
and the terminal transmits a second uplink channel and/or an uplink signal according to the second uplink transmission timing.
5. The uplink transmission method according to any one of claims 1 to 4, wherein the first indication information includes the first reference offset value, the first reference offset value and TA value are separately indicated, and uplink transmission timing of each time domain resource is independently determined;
or the first indication information includes the first reference offset value, the first reference offset value and the TA value are indicated separately, and the uplink transmission timing of the target time domain resource is obtained based on the uplink transmission timing of the previous time domain resource of the target time domain resource;
or, the first indication information includes a difference value between a TA value and the first reference offset value, where the first reference offset value and the TA value are indicated jointly, and uplink transmission timing of each time domain resource is determined independently.
6. The uplink transmission method according to any one of claims 1 to 4, wherein the second network side device includes M devices with strongest interference among interference devices of the first network side device, where M is a positive integer.
7. The uplink transmission method according to any one of claims 1 to 4, wherein the first reference offset value is: and the time difference between the time when the downlink signal of the second network side equipment arrives at the first network side equipment and the time when the downlink signal of the second network side equipment is sent out.
8. The uplink transmission method according to any one of claims 1 to 4, wherein the first uplink transmission timing is: a difference between the TA value and the first reference offset value.
9. The uplink transmission method according to any one of claims 1 to 4, wherein before the terminal determines a first uplink transmission timing according to the first indication information, further comprising:
and the terminal receives uplink scheduling Downlink Control Information (DCI) from the first network side equipment, wherein the uplink scheduling DCI indicates whether the first reference offset value is used or not.
10. The uplink transmission method according to any one of claims 1 to 4, wherein the first indication information includes at least one of:
a plurality of the first reference offset values;
an active time domain resource for each of the first reference offset values;
The duration of action of each of said first reference offset values.
11. The uplink transmission method according to any one of claims 1 to 4, further comprising:
the terminal receives a group of common DCI from the first network side equipment, wherein the group of common DCI is used for indicating whether a group of terminals use the first reference offset value in a first time domain resource with cross-link interference.
12. The uplink transmission method according to any one of claims 1 to 4, wherein the first reference offset value is determined in a first reference offset value set, the first reference offset value set being determined according to a signal arrival time of the second network side device.
13. The uplink transmission method according to any one of claims 1 to 4, wherein the first reference offset values corresponding to different first time domain resources where cross-link interference exists are the same, or the first reference offset value corresponding to each first time domain resource where cross-link interference exists is a value after accumulating the first reference offset value corresponding to the first time domain resource where cross-link interference exists before.
14. The uplink transmission method according to any one of claims 1 to 4, further comprising:
And the terminal sends a second uplink channel and/or an uplink signal on a second time domain resource without cross-link interference according to the scheduling instruction of the first network side equipment.
15. The uplink transmission method according to any one of claims 1 to 4, further comprising:
the terminal performs at least one of the following when a channel or signal transmitted by two adjacent time domain resources overlaps, when a first time domain resource with cross-link interference is immediately followed by a second time domain resource without cross-link interference or a downlink time domain resource is immediately followed by a first time domain resource with cross-link interference:
not transmitting a subsequent channel or signal in the previous time domain resource;
performing rate matching or puncturing processing on a later channel or signal in the previous time domain resource;
and performing rate matching or puncturing processing on the previous channel or signal in the latter time domain resource.
16. The uplink transmission method according to any one of claims 1 to 4, wherein the first indication information includes a new TA value, and the new TA value is obtained by updating a TA value according to the first reference offset value.
17. An uplink transmission apparatus, comprising:
the first receiving module is used for receiving first indication information from first network side equipment, wherein the first indication information is related to a first reference offset value, and the first reference offset value is related to signal arrival time of second network side equipment;
a first determining module, configured to determine a first uplink transmission timing according to the first indication information;
and the first sending module is used for sending the first uplink channel and/or the uplink signal according to the first uplink sending timing.
18. An uplink transmission method, comprising:
the first network side equipment determines a first reference offset value according to the signal arrival time of the second network side equipment;
the first network side equipment sends first indication information to a terminal, wherein the first indication information is related to the first reference offset value;
and the first network side equipment receives a first uplink channel and/or an uplink signal from the terminal according to a first uplink receiving timing, wherein the first uplink receiving timing is related to the first reference offset value.
19. The uplink transmission method according to claim 18, further comprising:
The first network side equipment sends second indication information to the terminal, wherein the second indication information comprises configuration information of first time domain resources with cross-link interference; or, the second indication information includes dynamic indication information of the first time domain resource.
20. The uplink transmission method according to claim 19, wherein the second indication information further includes configuration information of a second time domain resource in which cross-link interference exists, or the second indication information further includes dynamic indication information of the second time domain resource.
21. The uplink transmission method according to claim 20, further comprising:
and the first network side equipment receives a second uplink channel and/or an uplink signal from the terminal according to a second uplink receiving timing, wherein the second uplink receiving timing is related to the TA value.
22. The uplink transmission method according to any one of claims 18 to 21, wherein the first indication information includes the first reference offset value, the first reference offset value and TA value are separately indicated, and uplink transmission timing of each time domain resource is independently determined;
or the first indication information includes the first reference offset value, the first reference offset value and the TA value are indicated separately, and the uplink transmission timing of the target time domain resource is obtained based on the uplink transmission timing of the previous time domain resource of the target time domain resource;
Or, the first indication information includes a difference value between a TA value and the first reference offset value, where the first reference offset value and the TA value are indicated jointly, and uplink transmission timing of each time domain resource is determined independently.
23. The uplink transmission method according to any one of claims 18 to 21, wherein the first reference offset value is: and the time difference between the time when the downlink signal of the second network side equipment arrives at the first network side equipment and the time when the downlink signal of the second network side equipment is sent out.
24. The uplink transmission method according to any one of claims 18 to 21, wherein the first uplink transmission timing is: a difference between the TA value and the first reference offset value.
25. The uplink transmission method according to any one of claims 18 to 21, wherein the first indication information includes a new TA value, the new TA value being obtained by updating a TA value according to the first reference offset value.
26. The uplink transmission method according to any one of claims 18 to 21, further comprising:
the first network side device and the second network side device exchange reference information;
Wherein the reference information includes at least one of:
demodulation reference signal type;
a code division multiplexing group of demodulation reference signals;
an additional demodulation reference signal;
scrambling code identification;
demodulation reference signal sequence initialization parameters.
27. The uplink transmission method according to any one of claims 18 to 21, further comprising:
the first network side equipment performs uplink power control on a first time domain resource with cross-link interference;
and/or the number of the groups of groups,
the first network side equipment sends interference notification information to the second network side equipment, wherein the interference notification information is used for notifying the second network side equipment to reduce interference.
28. The uplink transmission method according to claim 27, wherein the first network side device sends interference notification information to the second network side device, including:
the first network side equipment sends interference notification information to the second network side equipment by utilizing an interference special sequence;
or the first network side equipment sends interference notification information to the second network side equipment through a physical layer special signaling;
or the first network side equipment sends the interference notification information to the second network side equipment through an Xn interface.
29. The uplink transmission method according to claim 28, further comprising:
and the first network side equipment and the second network side equipment interact the time domain position or the frequency domain position of the interference special sequence.
30. The uplink transmission method according to claim 27, wherein the interference notification information includes interference level indication information and/or interfered resource block information.
31. The uplink transmission method according to any one of claims 18 to 21, further comprising:
the first network side equipment receives pilot frequency configuration information of the second network side equipment;
and the first network side equipment determines the signal receiving timing of the second network side equipment according to the pilot frequency configuration information, and receives the downlink signal of the second network side equipment according to the signal receiving timing.
32. An uplink transmission apparatus, comprising:
the second determining module is used for determining a first reference offset value according to the signal arrival time of the second network side equipment;
the second sending module is used for sending first indication information to the terminal, wherein the first indication information is related to the first reference offset value;
And the second receiving module is used for receiving a first uplink channel and/or an uplink signal from the terminal according to a first uplink receiving timing, and the first uplink receiving timing is related to the first reference offset value.
33. A terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, performs the steps of the uplink transmission method according to any one of claims 1 to 16.
34. A network side device comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the uplink transmission method according to any one of claims 18 to 31.
35. A readable storage medium, characterized in that the readable storage medium stores thereon a program or instructions, which when executed by a processor, implements the uplink transmission method according to any one of claims 1 to 16, or the steps of the uplink transmission method according to any one of claims 18 to 31.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210871141.5A CN117500071A (en) | 2022-07-22 | 2022-07-22 | Uplink transmission method, device, terminal, network equipment and medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210871141.5A CN117500071A (en) | 2022-07-22 | 2022-07-22 | Uplink transmission method, device, terminal, network equipment and medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117500071A true CN117500071A (en) | 2024-02-02 |
Family
ID=89671346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210871141.5A Pending CN117500071A (en) | 2022-07-22 | 2022-07-22 | Uplink transmission method, device, terminal, network equipment and medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117500071A (en) |
-
2022
- 2022-07-22 CN CN202210871141.5A patent/CN117500071A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10225826B2 (en) | Transmission of uplink control information for multiple control channel format lengths | |
| CN105991256B (en) | Uplink data transmission control method, transmission method and device | |
| CN110034912B (en) | Data transmission method and equipment | |
| CN103220070A (en) | Sending method for uplink signal and user equipment | |
| US20230140450A1 (en) | Communication Method and Communications Apparatus | |
| US20230309109A1 (en) | TIMING ENHANCEMENTS RELATED TO PUCCH REPETITION TOWARDS MULTIPLE TRPs | |
| EP4224765A1 (en) | Method and apparatus for determining transmission mode, and communication device | |
| EP4280667A1 (en) | Channel information sending method, channel information receiving method and related device | |
| CN116436493A (en) | Frequency hopping and indicating method and device for uplink transmission, terminal and network equipment | |
| CN116208269A (en) | Information transmission method and equipment | |
| CN116367312A (en) | Transmission determination method, device, terminal, network device and storage medium | |
| CN117500071A (en) | Uplink transmission method, device, terminal, network equipment and medium | |
| CN113949426A (en) | Information sending method, receiving method and communication equipment | |
| CN115913475B (en) | Beam information determining method, device, communication equipment and storage medium | |
| US20240356692A1 (en) | Frequency hopping method and apparatus for uplink transmission, indication method and apparatus, terminal, and network-side device | |
| US20240357599A1 (en) | Method and apparatus of controlling uplink transmission in wireless communication system | |
| US20240357583A1 (en) | Method and apparatus of controlling uplink transmission in wireless communication system | |
| US20240340058A1 (en) | Method and apparatus for measuring channel to reduce wireless power | |
| US20240340677A1 (en) | Method and apparatus for reporting channel state information to reduce wireless power | |
| CN112492696B (en) | Uplink signal transmission method and device of communication system | |
| EP4451780A1 (en) | Method and apparatus of controlling uplink transmission in wireless communication system | |
| WO2023279402A1 (en) | User equipment, base station, and wireless communication method for srs transmission | |
| WO2024032459A1 (en) | Transmission processing method and apparatus, and terminal | |
| CN117545098A (en) | Maintenance method, device, equipment and medium for Timing Advance (TA) | |
| CN118301748A (en) | Transmission parameter configuration method and device and terminal equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |