CN107801244B - Method and device for configuring transmission interval and user equipment - Google Patents

Method and device for configuring transmission interval and user equipment Download PDF

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Publication number
CN107801244B
CN107801244B CN201610798966.3A CN201610798966A CN107801244B CN 107801244 B CN107801244 B CN 107801244B CN 201610798966 A CN201610798966 A CN 201610798966A CN 107801244 B CN107801244 B CN 107801244B
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transmission
txop
enb
uplink transmission
downlink
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CN107801244A (en
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周明宇
孙立新
丁颖哲
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Baicells Technologies Co Ltd
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Baicells Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention provides a method, a device and user equipment for configuring a transmission interval, wherein the method for configuring the transmission interval comprises the following steps: acquiring transmission interval information of downlink transmission and uplink transmission in the eNB TxOP; and determining the target time interval of the downlink transmission and the uplink transmission of the UE in the eNB TxOP according to the transmission interval information and the timing advance of the UE. The scheme of the invention can flexibly support different time intervals, and reduce the interference probability among the devices while improving the success rate of the channel competition of the devices.

Description

Method and device for configuring transmission interval and user equipment
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for configuring a transmission interval, and a user equipment.
Background
A mobile communication system is a system in which an operator provides a communication service for a user terminal (e.g., a mobile phone) by deploying a radio access network device (e.g., a base station) and a core network device (e.g., a Home Location Register, HLR), etc. Among them, the mobile communication system goes through the first, second, third and fourth generations. The first generation mobile communication system refers to the initial analog, only voice call cellular phone standard, mainly adopts analog technology and Frequency Division Multiple Access (FDMA) Access method; the second generation Mobile Communication system introduces digital technology, improves network capacity, improves voice quality and confidentiality, and takes global system for Mobile Communication (GSM) and Code Division multiple access (CDMA IS-95) as representatives; the third generation mobile communication system mainly refers to three technologies of CDMA2000, WCDMA and TD-SCDMA, all of which take CDMA as an access technology; the standards of the fourth generation mobile communication system are relatively unified internationally, and are Long Term Evolution (Long Term Evolution/Long Term Evolution-Advanced, LTE/LTE-a) formulated by the international organization for standardization 3GPP, and the downlink is based on an Access mode of Orthogonal Frequency Division Multiple Access (OFDMA) and the uplink is based on Single Carrier-Frequency division Multiple Access (SC-FDMA), and high-speed transmission of the downlink peak rate of 1Gbps and the uplink peak rate of 500Mbps is achieved according to a flexible bandwidth and an adaptive modulation and coding mode.
The MulteFire (MF for short) standard defines an uplink transmission method on the basis of an LTE R13LAA downlink transmission method, and can independently work in an unlicensed frequency band through technical enhancement.
Generally, a transmission opportunity TxOP of a base station eNB may be as shown in fig. 1, where sPUCCH occupies the last 4 symbols of an uplink and downlink handover subframe, and the location of the uplink and downlink handover subframe may be indicated by a C-PDCCH on the current and/or previous subframe. Furthermore, the MF supports two Physical Random Access Channel (PRACH) forms, namely PRACH in sPUCCH (abbreviated as sparrach) and PRACH in ePUCCH (abbreviated as ePRACH).
Referring to the provisions of the European Telecommunications Standardization Institute (ETSI), the case where the uplink transmission is allowed without listening-before-talking LBT in MF is "UL transmission statuses with out LBT in 16 μ s after the dl transmission ends (LBT is not required when the time interval between downlink transmission and uplink transmission is less than 16 μ s)". The transmission interval between the downlink transmission and the uplink transmission in the existing eNB TxOP is at least one symbol (about 71 μ s), and how to implement the time interval smaller than 16 μ s can be implemented by sending the reservation signal in advance, but it is not yet determined.
Meanwhile, a time interval is also required between the txops, the time interval between the end portion uplink transmission in the eNB TxOP and the UE TxOP is used for LBT, the time interval between the end portion downlink transmission in the eNB TxOP and the start portion downlink transmission in the next eNB TxOP is used for LBT, and the time interval between the end portion uplink transmission in the eNB TxOP and the start portion downlink transmission in the next eNB TxOP is used for uplink-downlink switching and LBT.
For a UE different from the eNB, a channel round trip delay corresponding to a maximum Timing Advance (TA) of the UE is closer to an uplink transmission time for the UE farther from the eNB (Cell-edge), and when the downlink arrival time is less than or equal to 16 μ s (see fig. 2), if uplink data is directly transmitted without LBT, a time interval Gap between downlink transmission and uplink transmission (e.g., 1symbol ═ 71 μ s) is greater than 16 μ s from the timing of the eNB, so that other devices (e.g., UEs of other networks close to the eNB) may LBT successfully within the Gap to generate interference.
If the eNB sets Gap to be less than 16 μ s, the time interval between the downlink reception and the uplink transmission of at least Cell-edge UE (with a large TA) may be less than 16 μ s or even overlap, so that the uplink signal cannot be transmitted in the first uplink transmission opportunity after the downlink reception.
That is, the current UE is often interfered by other UEs due to the time interval between its downlink reception and uplink transmission, which affects channel contention.
Disclosure of Invention
The invention aims to provide a method and a device for configuring a transmission interval and User Equipment (UE), so as to solve the problem that the current UE is interfered by other equipment due to the time interval between downlink receiving and uplink sending and influences channel competition.
In one aspect, an embodiment of the present invention provides a method for configuring a transmission interval, including:
acquiring transmission interval information of downlink transmission and uplink transmission in the eNB TxOP;
and determining the target time interval of the downlink transmission and the uplink transmission of the UE in the eNB TxOP according to the transmission interval information and the timing advance of the UE.
On the other hand, an embodiment of the present invention further provides a device for configuring a transmission interval, including:
an obtaining module, configured to obtain transmission interval information of downlink transmission and uplink transmission in an eNB TxOP;
a first determining module, configured to determine a target time interval of downlink transmission and uplink transmission of the UE in the eNBTxOP according to the transmission interval information and the timing advance of the UE itself.
Therefore, the method for configuring the transmission interval in the embodiment of the invention can flexibly support different time intervals, and reduce the interference probability among the devices while improving the success rate of the channel competition of the devices.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.
Fig. 1 shows a schematic diagram of an eNB TxOP.
Fig. 2 is a diagram showing a correspondence relationship between eNB and Cell-edge UE with respect to a transmission interval of the same eNB TxOP.
Fig. 3 is a flowchart illustrating a method for configuring a transmission interval according to a first embodiment of the present invention.
Fig. 4 is a flowchart illustrating a method for configuring a transmission interval according to a second embodiment of the present invention.
Fig. 5 is a flowchart illustrating a method of configuring a transmission interval according to a third embodiment of the present invention.
Fig. 6 is a schematic structural diagram of an apparatus for configuring a transmission interval according to a fourth embodiment of the present invention.
Fig. 7 shows a schematic structural diagram of a user equipment according to a fifth embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
First embodiment
Referring to fig. 3, a first embodiment of the present invention provides a method for configuring a transmission interval, which is applied to a user equipment and includes steps 301 to 302, which are described in detail below.
Step 301: acquiring transmission interval information of downlink transmission and uplink transmission in the eNB TxOP.
In this embodiment of the present invention, the transmission interval information at least includes a symbol number of a downlink ending subframe and a preset timing advance of uplink transmission of the UE in the eNBTxOP, or at least includes a symbol number of a downlink ending subframe and a preset time interval of downlink transmission and uplink transmission in the eNBTxOP.
The number of symbols of the downlink ending subframe can be indicated through the C-PDCCH on the downlink ending subframe or a subframe before the downlink ending subframe. It should be noted that the number of symbols of the complete subframe is 14, and sPUCCH always occupies the last 4 symbols of the uplink and downlink handover subframe, so that the number of spaced symbols (symbol level) corresponding to downlink transmission and uplink transmission in the eNBTxOP can be obtained by the number of symbols of the downlink-end subframe. And if one symbol usually corresponds to 71 μ s, the time interval (μ s level) between the downlink transmission and the uplink transmission corresponding to the eNB TxOP can be further obtained by combining the cell common timing advance cell-specific TA.
The preset timing advance of the uplink transmission of the UE in the eNB TxOP may be notified in system information, for example, SIB-MF, or may be predefined in the standard, and the present invention does not limit this.
The preset time interval between the downlink transmission and the uplink transmission in the eNB TxOP may be notified in system information, for example, SIB-MF, or may be predefined in a standard. The preset time interval may be directly indicated by one message, or may be indicated by a combination of multiple messages, for example, by a combination of an interval symbol number and a cell common timing advance, which is not limited in the present invention.
Step 302: and determining the target time interval of downlink transmission and uplink transmission of the UE in the eNBTxOP according to the transmission interval information and the timing advance of the UE.
Therefore, the UE carries out uplink transmission on the premise of meeting the target time interval, can realize the matching with the corresponding eNBTxOP and meets the system requirement.
The method for configuring the transmission interval can flexibly support different time intervals, improve the success rate of equipment channel competition and reduce the interference probability among equipment.
Second embodiment
Referring to fig. 4, a second embodiment of the present invention provides a method for configuring a transmission interval, which is applied to a user equipment and includes steps 401 to 403, which are described in detail below.
Step 401: acquiring the symbol number of a downlink ending subframe in the eNB TxOP and the preset timing advance of uplink transmission of UE in the eNB TxOP.
In the embodiment of the present invention, the symbol number and the preset timing advance of the downlink ending subframe are transmission interval information corresponding to downlink transmission and uplink transmission in the eNB TxOP. The preset timing advance can be used for enabling the UE to dynamically, periodically or fixedly adjust the uplink transmission sending time. The preset timing advance may be notified in the system information (generally corresponding to dynamic or periodic adjustment of the uplink transmission time), or may be predetermined in the standard (generally corresponding to fixed adjustment of the uplink transmission time).
Step 402: and determining the uplink transmission initial sending time of the UE in the eNBTxOP according to the symbol number of the downlink ending subframe and the timing advance of the UE.
In the embodiment of the present invention, the number of symbols between downlink transmission and uplink transmission in the eNB TxOP corresponding to the downlink ending subframe can be obtained by using the number of symbols of the downlink ending subframe. And according to the number of the interval symbols and the timing advance of the UE, the UE can determine the initial transmission time of the uplink transmission in the eNB TxOP.
The downlink ending subframe may be a partial subframe (i.e., DwPTS), and the symbol length value is [3, 6, 9, 10, 11, 12 ]; the downlink ending subframe may also be a complete subframe, and the symbol length is 14.
Step 403: and adjusting the initial sending time of the uplink transmission in advance or in a postponed manner according to the preset timing advance, and determining a target time interval of downlink transmission and uplink transmission of the UE in the eNB TxOP so as to adjust the time interval of the downlink transmission and the uplink transmission in the eNB TxOP.
Specifically, the uplink transmission initial sending time is adjusted in advance or delayed according to the preset timing advance, and the uplink transmission initial sending time is advanced or delayed according to the preset timing advance so as to adjust the time interval between downlink transmission and uplink transmission in the corresponding eNB TxOP.
In the embodiment of the present invention, the transmission interval information of the downlink transmission and the uplink transmission in the eNB TxOP acquired by the UE may further include an indication of an LBT that does not need to perform the uplink transmission or an indication of an LBT that needs to perform the uplink transmission.
When the transmission interval information includes an indication of an LBT that does not require uplink transmission, the method of the embodiment of the present invention further includes:
and controlling the UE to skip LBT and directly carry out uplink transmission.
And when the transmission interval information includes an indication of an LBT that needs to perform uplink transmission, the method of the embodiment of the present invention further includes:
comparing the time interval between downlink transmission and uplink transmission (here, the first resource capable of performing uplink transmission, the same applies below) in the eNB TxOP with the size relationship between a first preset threshold and a second preset threshold, where the second preset threshold is greater than the first preset threshold;
when the time interval between downlink transmission and uplink transmission in the eNB TxOP is greater than or equal to the first preset threshold, controlling the UE to carry out LBT before uplink transmission; or when the time interval between the downlink transmission and the uplink transmission in the eNBTxOP is smaller than or equal to the second preset threshold, controlling the UE not to carry out LBT; or when the time interval between downlink transmission and uplink transmission in the eNBTxOP is greater than the second preset threshold and less than the first preset threshold, controlling the UE to send a reservation signal to the eNB and skip LBT for direct uplink transmission, where the reservation signal is used to make the difference between the target time interval and the duration of the reservation signal less than the second preset threshold.
For example, the time interval between downlink transmission and uplink transmission in eNB TxOP is TgapThe first preset threshold is (25+ T)rx-tx+TAmax) μ s, wherein TAmaxIs the maximum TA value, T, of the UE in the current eNBrx-txFor the transition delay (maximum or typical value) for UE receiving uplink transmission from downlink, when TgapGreater than or equal to (25+ T)rx-tx+TAmax) When the time is mus, LBT is needed to be carried out on the uplink transmission of all UE under the eNB; the second preset threshold is 16 mus when TgapLess than or equal to 16 μ s for (T)gap-TA-Trx-tx) UEs greater than 0 do not need to perform LBT for (16-TA-T)rx-tx) UEs smaller than 0 are not transmitting at the first uplink transmission opportunity, i.e. the eNB does not schedule the UE. When T isgapGreater than 16 mus and less than (25+ T)rx-tx+TAmax) μ s for Trx-tx<(Tgap-TA)<16 mus UE sends directly without LBT for (T)gap-TA)>The UE of 16 mu s enables T by sending a reserved signal of Tr duration in advancerx-tx<(Tgap-TA-Tr)<16μs。
The method for configuring the transmission interval in the embodiment of the invention can dynamically, periodically or fixedly adjust the time interval of downlink transmission and uplink transmission in the corresponding eNB TxOP by means of the preset timing advance, and further select the uplink LBT mode by indicating whether the LBT of the uplink transmission needs to be carried out, thereby improving the success rate of equipment channel competition and reducing the interference probability among equipment.
Third embodiment
Referring to fig. 5, a third embodiment of the present invention provides a method for configuring a transmission interval, which is applied to a user equipment and includes steps 501 to 503, which are described in detail below.
Step 501: acquiring the symbol number of a downlink ending subframe in the eNB TxOP and a preset time interval of downlink transmission and uplink transmission in the eNB TxOP.
In the embodiment of the present invention, the symbol number and the preset time interval of the downlink ending subframe are transmission interval information corresponding to downlink transmission and uplink transmission in the eNBTxOP. The preset time interval is a fixed time interval between downlink transmission and uplink transmission in the eNB TxOP, and may be notified in system information or predefined in a standard.
Step 502: and determining the uplink transmission initial sending time of the UE in the eNBTxOP according to the symbol number of the downlink ending subframe and the timing advance of the UE.
In the embodiment of the present invention, the number of symbols between the downlink transmission in the eNB TxOP corresponding to the downlink ending subframe and the uplink transmission that has not been adjusted in transmission time can be obtained by using the number of symbols of the downlink ending subframe. And according to the number of the interval symbols and the timing advance of the UE, the UE can determine the initial sending time of the uplink transmission in the eNBTxOP.
Step 503: and determining a target time interval of downlink transmission and uplink transmission of the UE in the eNBTxOP by adjusting the initial sending time of the uplink transmission in advance or postponing, so that the time interval of the downlink transmission and the uplink transmission in the eNB TxOP is the preset time interval.
Specifically, the advancing or delaying of the initial sending time of the uplink transmission is mainly to advance the initial sending time of the uplink transmission or delay the initial sending time of the uplink transmission, so that the time interval between the downlink transmission and the uplink transmission in the eNBTxOP is the preset time interval.
For example, the preset time interval indicated in the system message is a value X μ s smaller than 1symbol (71 μ s), when the downlink ending subframe is a partial subframe (i.e., DwPTS), the symbol length is set to [3, 6, 9, 10, 11, 12], the uplink transmission time of the UE is automatically adjusted to a position where the X μ s interval is maintained, wherein when the DwPTS has a length of [3, 6, 9], the UE may transmit sPUCCH and adjust the corresponding transmission time size to guarantee the interval size, and when the DwPTS has a length of [10, 11, 12], the UE may transmit a physical uplink shared channel PUSCH and adjust the corresponding transmission time size to guarantee the interval size (the PUSCH may be adjusted by default according to the first symbol start position of the PUSCH or according to the actual transmission position). When the downlink ending subframe is a complete subframe, i.e. the symbol length is 14, the adjustment may be performed according to the first symbol start position of the PUSCH by default or according to the actual transmission position of the PUSCH.
On the basis of determining the target time interval, the LBT mode may be selected similarly to the second embodiment, and details are not repeated here.
In this embodiment of the present invention, after adjusting the initial sending time of uplink transmission, if the next subframe of the eNB TxOP is another eNB TxOP, the method further includes:
determining an adjustment amount of the uplink transmission initial transmission time as a time interval of the eNB TxOP and the another eNBTxOP.
In this way, the other eNB TxOP may be allowed sufficient time intervals for LBT.
In the embodiment of the present invention, the transmission interval information of the downlink transmission and the uplink transmission in the eNB TxOP acquired by the UE may further include a cell common timing advance cell-specific TA. The cell-specific TA may be notified in a system message or may be predefined in the standard.
When the next subframe of the eNB TxOP is the UE TxOP, the uplink transmission time of the UE in the UE TxOP may refer to a value of a cell-specific TA only, that is, the time interval between the eNB TxOP and the UE TxOP is determined according to the cell-specific TA. And when the uplink transmission time in the eNB TxOP is advanced, the UE also has enough time to perform Cat-4 LBT.
Further, the cell-specific TA includes a cell-specific TA for uplink transmission other than the UE TxOP and a cell-specific TA for uplink transmission within the UE TxOP.
For example, for a UE TxOP for which the UE competes successfully by cat-4LBT, its Cell-specific TA (i.e., the Cell-specific TA of the uplink transmission in the UE TxOP) may be set to 0, while for uplink transmissions other than the UE TxOP, a non-0 Cell-specific TA is used, so the configuration may allow the UE TxOP after the eNB TxOP to have a sufficient time interval for cat-4 LBT.
The method for configuring the transmission interval can adjust the time interval of downlink transmission and uplink transmission in the corresponding eNB TxOP by means of the preset time interval, flexibly support different target time intervals, improve the success rate of UE channel competition, and reduce the interference probability among the UEs.
Fourth embodiment
Referring to fig. 6, a fourth embodiment of the present invention provides an apparatus for configuring a transmission interval, the apparatus including:
an obtaining module 61, configured to obtain transmission interval information of downlink transmission and uplink transmission in an eNB TxOP;
a first determining module 62, configured to determine a target time interval of downlink transmission and uplink transmission of the UE in the eNBTxOP according to the transmission interval information and the timing advance of the UE itself.
In the embodiment of the present invention, the transmission interval information includes a symbol number of a downlink ending subframe and a preset timing advance of uplink transmission of the UE in the eNB TxOP; or
The transmission interval information includes a symbol number of a downlink ending subframe and a preset time interval of downlink transmission and uplink transmission in the eNB TxOP.
In this embodiment of the present invention, when the transmission interval information includes a symbol number of a downlink end subframe and a preset timing advance of uplink transmission of the UE in the eNBTxOP, the first determining module 62 includes:
a first determining unit, configured to determine, according to the symbol number of the downlink ending subframe and a timing advance of the UE itself, an uplink transmission initial sending time of the UE in the eNB TxOP;
a second determining unit, configured to advance or delay the initial sending time of the uplink transmission according to the preset timing advance, and determine a target time interval between downlink transmission and uplink transmission of the UE in the eNB TxOP, so as to adjust the time interval between downlink transmission and uplink transmission in the eNB TxOP.
In this embodiment of the present invention, when the transmission interval information includes a symbol number of a downlink end subframe and a preset time interval between downlink transmission and uplink transmission in the eNBTxOP, the first determining module 62 includes:
a third determining unit, configured to determine, according to the number of symbols of the downlink ending subframe and a timing advance of the UE itself, an uplink transmission initial sending time of the UE in the eNB TxOP;
a fourth determining unit, configured to determine a target time interval of downlink transmission and uplink transmission of the UE in the eNB TxOP by performing advance or delay adjustment on the initial sending time of the uplink transmission, so that the time interval of the downlink transmission and the uplink transmission in the eNB TxOP is the preset time interval.
In this embodiment of the present invention, the transmission interval information further includes an indication of an LBT that does not require uplink transmission, and the apparatus further includes:
a first control unit, configured to control the UE to skip LBT for direct uplink transmission.
In this embodiment of the present invention, the transmission interval information further includes an indication of an LBT that needs to perform uplink transmission, and the apparatus further includes:
a comparing unit, configured to compare a size relationship between a time interval of downlink transmission and uplink transmission in the eNB TxOP and a first preset threshold and a second preset threshold, where the second preset threshold is greater than the first preset threshold;
a second control unit, configured to control the UE to perform LBT before uplink transmission when a time interval between downlink transmission and uplink transmission in the eNB TxOP is greater than or equal to the first preset threshold; or when the time interval between downlink transmission and uplink transmission in the eNB TxOP is smaller than or equal to the second preset threshold, controlling the UE not to carry out LBT; or when the time interval between downlink transmission and uplink transmission in the eNB TxOP is greater than the second preset threshold and smaller than the first preset threshold, controlling the UE to send a reservation signal to the eNB and skip LBT for direct uplink transmission, where the reservation signal is used to make the difference between the target time interval and the duration of the reservation signal smaller than the second preset threshold.
Specifically, the symbol number of the downlink ending subframe is indicated by the C-PDCCH on the downlink ending subframe or a subframe preceding the downlink ending subframe.
Specifically, the preset timing advance of the uplink transmission of the UE in the eNB TxOP is notified in the system information or predefined in a standard.
Specifically, the preset time interval between the downlink transmission and the uplink transmission in the eNB TxOP is notified in the system information or predefined in a standard.
In this embodiment of the present invention, the transmission interval information further includes a cell common timing advance, and when a next subframe of the eNBTxOP is a UE TxOP, the apparatus further includes:
a second determining module, configured to determine a time interval between the eNB TxOP and the ue TxOP according to the cell common timing advance.
Specifically, the cell common timing advance includes a cell common timing advance for uplink transmission other than the UE TxOP and a cell common timing advance for uplink transmission within the UE TxOP.
In this embodiment of the present invention, when the next subframe of the eNB TxOP is another eNB TxOP, the apparatus further includes:
a third determining module, configured to determine an adjustment amount of the uplink transmission initial transmission time as a time interval between the eNB TxOP and the another eNB TxOP.
The device for configuring the transmission interval in the embodiment of the invention can flexibly support different time intervals, and reduce the interference probability among the devices while improving the success rate of channel competition of the devices.
Fifth embodiment
Referring to fig. 7, a fifth embodiment of the present invention provides a user equipment UE, which includes a memory 71, a transceiver 72 and a processor 73;
wherein the memory 71 is used for storing one or more sets of software programs;
the processor 73 is connected to the memory 71 and the transceiver 72, and configured to control the transceiver 72 to obtain transmission interval information of downlink transmission and uplink transmission in the eNB TxOP by running a software program in the memory 71, and determine a target time interval of the downlink transmission and uplink transmission of the UE in the eNB TxOP according to the transmission interval information and a timing advance of the UE itself.
While the principles of the invention have been described in connection with specific embodiments thereof, it should be noted that it will be understood by those skilled in the art that all or any of the steps or elements of the method and apparatus of the invention may be implemented in any computing device (including processors, storage media, etc.) or network of computing devices, in hardware, firmware, software, or any combination thereof, which will be within the skill of those in the art after reading the description of the invention and applying their basic programming skills.
Thus, the objects of the invention may also be achieved by running a program or a set of programs on any computing device. The computing device may be a general purpose device as is well known. The object of the invention is thus also achieved solely by providing a program product comprising program code for implementing the method or the apparatus. That is, such a program product also constitutes the present invention, and a storage medium storing such a program product also constitutes the present invention. It is to be understood that the storage medium may be any known storage medium or any storage medium developed in the future. It is further noted that in the apparatus and method of the present invention, it is apparent that each component or step can be decomposed and/or recombined. These decompositions and/or recombinations are to be regarded as equivalents of the present invention. Also, the steps of executing the series of processes described above may naturally be executed chronologically in the order described, but need not necessarily be executed chronologically. Some steps may be performed in parallel or independently of each other.
A1, a method for configuring a transmission interval, comprising:
acquiring transmission interval information of downlink transmission and uplink transmission in eNBTxOP;
and determining the target time interval of the downlink transmission and the uplink transmission of the UE in the eNB TxOP according to the transmission interval information and the timing advance of the UE.
A2, the method according to A1, characterized in that, the transmission interval information includes the symbol number of the downlink ending sub-frame and the preset timing advance of the uplink transmission of the UE in the eNB TxOP; or
The transmission interval information includes a symbol number of a downlink ending subframe and a preset time interval of downlink transmission and uplink transmission in the eNB TxOP.
A3, the method according to A2, characterized in that, the transmission interval information includes the symbol number of the downlink ending sub-frame and the preset timing advance of the uplink transmission of the UE in the eNB TxOP;
the step of determining the target time interval of the downlink transmission and the uplink transmission of the UE in the eNB TxOP according to the transmission interval information and the timing advance of the UE comprises the following steps:
determining the uplink transmission initial sending time of the UE in the eNBTxOP according to the symbol number of the downlink ending subframe and the timing advance of the UE;
and adjusting the initial sending time of the uplink transmission in advance or in a postponed manner according to the preset timing advance, and determining a target time interval of downlink transmission and uplink transmission of the UE in the eNB TxOP so as to adjust the time interval of the downlink transmission and the uplink transmission in the eNB TxOP.
A4, the method according to A2, wherein said transmission interval information includes the symbol number of the downlink ending sub-frame and the preset time interval of the downlink transmission and the uplink transmission in said eNB TxOP;
the step of determining a first time interval of downlink transmission and uplink transmission of the UE in the eNB TxOP according to the transmission interval information and the timing advance of the UE itself includes:
determining the uplink transmission initial sending time of the UE in the eNBTxOP according to the symbol number of the downlink ending subframe and the timing advance of the UE;
and determining a target time interval of downlink transmission and uplink transmission of the UE in the eNBTxOP by adjusting the initial sending time of the uplink transmission in advance or postponing, so that the time interval of the downlink transmission and the uplink transmission in the eNB TxOP is the preset time interval.
A5, the method according to A3 or A4, wherein the transmission interval information further includes an indication of LBT for which uplink transmission is not required, the method further comprising:
and controlling the UE to skip LBT and directly carry out uplink transmission.
A6, the method according to A3 or A4, wherein the transmission interval information further includes an indication of an LBT for which uplink transmission is required, the method further comprising:
comparing the size relation between the time interval of downlink transmission and uplink transmission in the eNB TxOP and a first preset threshold value and a second preset threshold value, wherein the second preset threshold value is larger than the first preset threshold value;
when the time interval between downlink transmission and uplink transmission in the eNB TxOP is greater than or equal to the first preset threshold, controlling the UE to carry out LBT before uplink transmission; or when the time interval between the downlink transmission and the uplink transmission in the eNBTxOP is smaller than or equal to the second preset threshold, controlling the UE not to carry out LBT; or when the time interval between downlink transmission and uplink transmission in the eNBTxOP is greater than the second preset threshold and less than the first preset threshold, controlling the UE to send a reservation signal to the eNB and skip LBT for direct uplink transmission, where the reservation signal is used to make the difference between the target time interval and the duration of the reservation signal less than the second preset threshold.
A7, the method according to A2, wherein the symbol number of the downlink end subframe is indicated by the C-PDCCH on the downlink end subframe or a subframe preceding the downlink end subframe.
A8, the method according to A2, wherein the preset timing advance of the UE uplink transmission in the eNB TxOP is notified in system information or predefined in a standard.
A9, the method according to A2, wherein the preset time interval between downlink transmission and uplink transmission in the eNB TxOP is notified in system information or predefined in a standard.
A10, the method according to A2, wherein the transmission interval information further includes a cell common timing advance, and when the next subframe of the eNB TxOP is the UE TxOP, the method further includes:
and determining the time interval between the eNB TxOP and the UE TxOP according to the cell common timing advance.
A11, the method of A10, wherein the cell common timing advance comprises a cell common timing advance for uplink transmissions outside of UE TxOP and a cell common timing advance for uplink transmissions within UE TxOP.
A12, the method according to A3 or A4, wherein when the next subframe of the eNB TxOP is another eNB TxOP, the method further comprises:
determining an adjustment amount of the uplink transmission initial transmission time as a time interval of the eNB TxOP and the another eNBTxOP.
A13, an apparatus for configuring a transmission interval, comprising:
an obtaining module, configured to obtain transmission interval information of downlink transmission and uplink transmission in an eNB TxOP;
a first determining module, configured to determine a target time interval of downlink transmission and uplink transmission of the UE in the eNBTxOP according to the transmission interval information and the timing advance of the UE itself.
A14, the device according to A13, characterized in that, the transmission interval information includes the symbol number of the downlink ending sub-frame and the preset timing advance of the uplink transmission of the UE in the eNB TxOP; or
The transmission interval information includes a symbol number of a downlink ending subframe and a preset time interval of downlink transmission and uplink transmission in the eNB TxOP.
A15, the device according to A14, characterized in that, the transmission interval information includes the symbol number of the downlink ending sub-frame and the preset timing advance of the uplink transmission of the UE in the eNB TxOP;
the first determining module includes:
a first determining unit, configured to determine, according to the symbol number of the downlink ending subframe and a timing advance of the UE itself, an uplink transmission initial sending time of the UE in the eNB TxOP;
a second determining unit, configured to advance or delay the initial sending time of the uplink transmission according to the preset timing advance, and determine a target time interval between downlink transmission and uplink transmission of the UE in the eNB TxOP, so as to adjust the time interval between downlink transmission and uplink transmission in the eNB TxOP.
A16, the device according to A14, characterized in that, the transmission interval information includes the symbol number of the downlink ending sub-frame and the preset time interval of the downlink transmission and the uplink transmission in the eNB TxOP;
the first determining module includes:
a third determining unit, configured to determine, according to the number of symbols of the downlink ending subframe and a timing advance of the UE itself, an uplink transmission initial sending time of the UE in the eNB TxOP;
a fourth determining unit, configured to determine a target time interval of downlink transmission and uplink transmission of the UE in the eNB TxOP by performing advance or delay adjustment on the initial sending time of the uplink transmission, so that the time interval of the downlink transmission and the uplink transmission in the eNB TxOP is the preset time interval.
A17, the apparatus according to A15 or A16, wherein the transmission interval information further includes an indication of LBT for which uplink transmission is not required, the apparatus further comprising:
a first control unit, configured to control the UE to skip LBT for direct uplink transmission.
A18, the apparatus according to A15 or A16, wherein the transmission interval information further includes an indication of an LBT that needs to be uplink-transmitted, the apparatus further comprising:
a comparing unit, configured to compare a size relationship between a time interval of downlink transmission and uplink transmission in the eNB TxOP and a first preset threshold and a second preset threshold, where the second preset threshold is greater than the first preset threshold;
a second control unit, configured to control the UE to perform LBT before uplink transmission when a time interval between downlink transmission and uplink transmission in the eNB TxOP is greater than or equal to the first preset threshold; or when the time interval between downlink transmission and uplink transmission in the eNB TxOP is smaller than or equal to the second preset threshold, controlling the UE not to carry out LBT; or when the time interval between downlink transmission and uplink transmission in the eNB TxOP is greater than the second preset threshold and smaller than the first preset threshold, controlling the UE to send a reservation signal to the eNB and skip LBT for direct uplink transmission, where the reservation signal is used to make the difference between the target time interval and the duration of the reservation signal smaller than the second preset threshold.
A19, the apparatus of A14, wherein the number of symbols in the downlink end subframe is indicated by the C-PDCCH in the downlink end subframe or a subframe preceding the downlink end subframe.
A20, the apparatus of A14, wherein the preset timing advance for the uplink transmission of the UE in the eNB TxOP is notified in the system information or predefined in the standard.
A21, the device according to A14, wherein the preset time interval between downlink transmission and uplink transmission in the eNB TxOP is notified in system information or predefined in a standard.
A22, the apparatus according to A14, wherein the transmission interval information further includes a cell common timing advance, and when a next subframe of the eNB TxOP is a UE TxOP, the apparatus further includes:
a second determining module, configured to determine a time interval between the eNB TxOP and the ue TxOP according to the cell common timing advance.
A23, the apparatus of A22, wherein the cell common timing advance comprises a cell common timing advance for uplink transmissions outside of UE TxOP and a cell common timing advance for uplink transmissions within UE TxOP.
A24, the apparatus according to A15 or A16, wherein when the next subframe of the eNB TxOP is another eNB TxOP, the apparatus further comprises:
a third determining module, configured to determine an adjustment amount of the uplink transmission initial transmission time as a time interval between the eNB TxOP and the another eNB TxOP.
A25, a user equipment, comprising a memory, a transceiver, and a processor;
the memory is used for storing a software program;
the processor, by executing the software program, is to:
and controlling the transceiver to acquire transmission interval information of downlink transmission and uplink transmission in the eNB TxOP, and determining a target time interval of the downlink transmission and the uplink transmission of the UE in the eNB TxOP according to the transmission interval information and the timing advance of the UE.

Claims (25)

1. A method of configuring a transmission interval, comprising:
acquiring transmission interval information of downlink transmission and uplink transmission in the eNB TxOP;
and determining a target time interval of downlink transmission and uplink transmission of the UE in the eNB TxOP according to the transmission interval information and the timing advance of the UE.
2. The method of claim 1, wherein the transmission interval information includes a symbol number of a downlink end subframe and a preset timing advance of uplink transmission of the UE within the eNB TxOP; or
The transmission interval information includes a symbol number of a downlink ending subframe and a preset time interval of downlink transmission and uplink transmission in the eNB TxOP.
3. The method of claim 2, wherein the transmission interval information includes a symbol number of a downlink end subframe and a preset timing advance of uplink transmission of the UE within the eNB TxOP;
the step of determining the target time interval of the downlink transmission and the uplink transmission of the UE in the eNB TxOP according to the transmission interval information and the timing advance of the UE comprises the following steps:
determining the uplink transmission initial sending time of the UE in the eNB TxOP according to the symbol number of the downlink ending subframe and the timing advance of the UE;
and adjusting the initial sending time of the uplink transmission in advance or in a postponed manner according to the preset timing advance, and determining a target time interval of downlink transmission and uplink transmission of the UE in the eNB TxOP so as to adjust the time interval of the downlink transmission and the uplink transmission in the eNB TxOP.
4. The method of claim 2, wherein the transmission interval information includes a symbol number of a downlink end subframe and a preset time interval of downlink transmission and uplink transmission in the eNB TxOP;
the step of determining a first time interval of downlink transmission and uplink transmission of the UE in the eNB TxOP according to the transmission interval information and the timing advance of the UE itself includes:
determining the uplink transmission initial sending time of the UE in the eNB TxOP according to the symbol number of the downlink ending subframe and the timing advance of the UE;
and determining a target time interval of downlink transmission and uplink transmission of the UE in the eNB TxOP by adjusting the initial sending time of the uplink transmission in advance or postponing the initial sending time of the uplink transmission, so that the time interval of the downlink transmission and the uplink transmission in the eNB TxOP is the preset time interval.
5. The method of claim 3 or 4, wherein the transmission interval information further comprises an indication of an LBT for which uplink transmission is not required, and wherein the method further comprises:
and controlling the UE to skip LBT and directly carry out uplink transmission.
6. The method according to claim 3 or 4, wherein the transmission interval information further comprises an indication of an LBT for which uplink transmission is required, the method further comprising:
comparing the size relation between the time interval of downlink transmission and uplink transmission in the eNB TxOP and a first preset threshold value and a second preset threshold value, wherein the second preset threshold value is larger than the first preset threshold value;
when the time interval between downlink transmission and uplink transmission in the eNB TxOP is greater than or equal to the first preset threshold, controlling the UE to carry out LBT before uplink transmission; or when the time interval between downlink transmission and uplink transmission in the eNB TxOP is smaller than or equal to the second preset threshold, controlling the UE not to carry out LBT; or when the time interval between downlink transmission and uplink transmission in the eNB TxOP is greater than the second preset threshold and smaller than the first preset threshold, controlling the UE to send a reservation signal to the eNB and skip LBT for direct uplink transmission, where the reservation signal is used to make the difference between the target time interval and the duration of the reservation signal smaller than the second preset threshold.
7. The method of claim 2, wherein the number of symbols of the downlink ending subframe is indicated by a C-PDCCH on the downlink ending subframe or a subframe preceding the downlink ending subframe.
8. The method of claim 2, wherein the preset timing advance for uplink transmission of the UE within the eNB TxOP is either signaled in system information or predefined in a standard.
9. The method of claim 2, wherein the predetermined time interval between downlink and uplink transmissions in the eNB TxOP is predefined in a system information notification or a standard.
10. The method of claim 2, wherein the transmission interval information further comprises a cell common timing advance, and wherein when the next subframe of the eNB TxOP is a UE TxOP, the method further comprises:
and determining the time interval between the eNB TxOP and the UE TxOP according to the cell common timing advance.
11. The method of claim 10, wherein the cell common timing advance comprises a cell common timing advance for uplink transmissions outside of the UE TxOP and a cell common timing advance for uplink transmissions within the UE TxOP.
12. The method of claim 3 or 4, when the next subframe of the eNB TxOP is another eNB TxOP, the method further comprising:
determining an adjustment amount of the uplink transmission initial transmission time as a time interval of the eNB TxOP and the another eNB TxOP.
13. An apparatus for configuring a transmission interval, comprising:
an obtaining module, configured to obtain transmission interval information of downlink transmission and uplink transmission in an eNB TxOP;
a first determining module, configured to determine a target time interval of downlink transmission and uplink transmission of the UE in the eNB TxOP according to the transmission interval information and the timing advance of the UE itself.
14. The apparatus of claim 13, wherein the transmission interval information comprises a symbol number of a downlink end subframe and a preset timing advance of uplink transmission of the UE within the eNB TxOP; or
The transmission interval information includes a symbol number of a downlink ending subframe and a preset time interval of downlink transmission and uplink transmission in the eNB TxOP.
15. The apparatus of claim 14, wherein the transmission interval information comprises a symbol number of a downlink end subframe and a preset timing advance of uplink transmission of the UE within the eNB TxOP;
the first determining module includes:
a first determining unit, configured to determine, according to the symbol number of the downlink ending subframe and a timing advance of the UE itself, an uplink transmission initial sending time of the UE in the eNB TxOP;
a second determining unit, configured to advance or delay the initial sending time of the uplink transmission according to the preset timing advance, and determine a target time interval between downlink transmission and uplink transmission of the UE in the eNB TxOP, so as to adjust the time interval between downlink transmission and uplink transmission in the eNB TxOP.
16. The apparatus of claim 14, wherein the transmission interval information comprises a symbol number of a downlink end subframe and a preset time interval of downlink transmission and uplink transmission in the eNB TxOP;
the first determining module includes:
a third determining unit, configured to determine, according to the number of symbols of the downlink ending subframe and a timing advance of the UE itself, an uplink transmission initial sending time of the UE in the eNB TxOP;
a fourth determining unit, configured to determine a target time interval of downlink transmission and uplink transmission of the UE in the eNB TxOP by performing advance or delay adjustment on the initial sending time of the uplink transmission, so that the time interval of the downlink transmission and the uplink transmission in the eNB TxOP is the preset time interval.
17. The apparatus of claim 15 or 16, wherein the transmission interval information further comprises an indication of LBT without uplink transmission, and wherein the apparatus further comprises:
a first control unit, configured to control the UE to skip LBT for direct uplink transmission.
18. The apparatus according to claim 15 or 16, wherein the transmission interval information further includes an indication of LBT that needs to perform uplink transmission, the apparatus further comprising:
a comparing unit, configured to compare a size relationship between a time interval of downlink transmission and uplink transmission in the eNB TxOP and a first preset threshold and a second preset threshold, where the second preset threshold is greater than the first preset threshold;
a second control unit, configured to control the UE to perform LBT before uplink transmission when a time interval between downlink transmission and uplink transmission in the eNB TxOP is greater than or equal to the first preset threshold; or when the time interval between downlink transmission and uplink transmission in the eNB TxOP is smaller than or equal to the second preset threshold, controlling the UE not to carry out LBT; or when the time interval between downlink transmission and uplink transmission in the eNB TxOP is greater than the second preset threshold and smaller than the first preset threshold, controlling the UE to send a reservation signal to the eNB and skip LBT for direct uplink transmission, where the reservation signal is used to make the difference between the target time interval and the duration of the reservation signal smaller than the second preset threshold.
19. The apparatus of claim 14, wherein the number of symbols of the end-of-downlink subframe is indicated by a C-PDCCH on the end-of-downlink subframe or a subframe preceding the end-of-downlink subframe.
20. The apparatus of claim 14, wherein the preset timing advance for uplink transmission by the UE in the eNB TxOP is specified in a system information notification or a standard.
21. The apparatus of claim 14, wherein the preset time interval between downlink and uplink transmissions in the eNB TxOP is predefined in a system information notification or a standard.
22. The apparatus of claim 14, wherein the transmission interval information further comprises a cell common timing advance, and wherein when the next subframe of the eNB TxOP is a UE TxOP, the apparatus further comprises:
a second determining module, configured to determine a time interval between the eNB TxOP and the UE TxOP according to the cell common timing advance.
23. The apparatus of claim 22, wherein the cell common timing advance comprises a cell common timing advance for uplink transmissions outside of a UE TxOP and a cell common timing advance for uplink transmissions within the UE TxOP.
24. The apparatus of claim 15 or 16, when a next subframe of the eNB TxOP is another eNB TxOP, the apparatus further comprising:
a third determining module, configured to determine an adjustment amount of the uplink transmission initial transmission time as a time interval between the eNB TxOP and the another eNB TxOP.
25. A user equipment comprising a memory, a transceiver, and a processor;
the memory is used for storing a software program;
the processor, by executing the software program, is to:
and controlling the transceiver to acquire transmission interval information of downlink transmission and uplink transmission in the eNB TxOP, and determining a target time interval of the downlink transmission and the uplink transmission of the UE in the eNB TxOP according to the transmission interval information and the timing advance of the UE.
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