JP7255658B2 - User equipment, base station and method - Google Patents

Description

TECHNICAL FIELD Embodiments of the present disclosure relate generally to wireless communication technology, and more particularly to methods and apparatus for implementing uplink (UL) transmission and methods and apparatus for implementing UL reception.

In the 3rd Generation Partnership Project (3GPP), the network structure and various technologies required for terminal mobility between a 3GPP wireless communication network and a Wireless Local Area Network (WLAN) are called interworking WLAN. Multi-mode wireless communication technology evolved to use multiple wireless communication technologies simultaneously. Simultaneous use of multiple wireless communication technologies thereby increases transfer rate per unit time or improves terminal reliability.

In wireless communications, spectrum is a very scarce resource. A licensed band represents a frequency band exclusively licensed to provide a particular wireless service to a particular operator. An unlicensed band, on the other hand, represents a frequency band that has not been assigned to a particular operator, but is open for use by any entity that meets predefined requirements.

In some parts of the world, unlicensed band technologies are required to comply with specific regulations, such as LBT (Listen-Before Talk), and channel bandwidth occupation requirements. LBT introduces uncertainty in channel availability. For example, unlicensed bands may be available at any time during a subframe.

In a Long term evolution (LTE) system, UL transmission is controlled by an evolved node B (eNB). That is, the UE transmits signals according to the UL grant from the eNB. Therefore, there is a time delay between UL data transmission and UL grant transmission. Considering the above and the uncertain downlink (DL) and UL burst lengths, if the previous mechanism is used, there are enough DL subframes to send UL grants for UL transmissions. It may not exist.

In the present disclosure, new solutions for UL transmission and reception are provided to alleviate or at least alleviate some of the problems in the prior art.

According to a first aspect of the present disclosure, a method of implementing UL transmission is provided. The method is responsive to detection of a clear channel on an unlicensed carrier, determining a transmission starting location for an UL transmission from a plurality of potential starting locations within a subframe; It may have to perform UL transmission from the starting position.

In a second aspect of the present disclosure, a method of performing UL reception is provided. The method comprises determining a reception starting position for UL reception, one of a plurality of potential starting positions within a subframe, and performing UL reception from the determined reception starting position. obtain.

In a third aspect of the disclosure, an apparatus is provided for performing UL transmission. A device, in response to detection of a clear channel on an unlicensed carrier, is configured to determine a transmission starting position for UL transmission from a plurality of potential starting positions within a subframe. A determination unit and a UL transmission execution unit that performs UL transmission from the determined transmission start position may be provided.

In a fourth aspect of the disclosure, an apparatus is provided for performing UL reception. An apparatus comprises a reception position determiner configured to determine a reception start position for UL reception, which is one of a plurality of potential start positions within a subframe; A UL reception executor configured to perform reception may be provided.

According to a fifth aspect of the present disclosure, a computer containing computer program code configured to, when executed, cause an apparatus to perform operations in a method according to any embodiment of the first aspect A readable storage medium is provided.

According to a sixth aspect of the present disclosure, a computer containing computer program code configured to, when executed, cause an apparatus to perform operations in a method according to any embodiment of the second aspect A readable storage medium is further provided.

According to a seventh aspect of the disclosure there is provided a computer program product having a computer readable storage medium according to the fifth aspect.

According to an eighth aspect of the present disclosure there is provided a computer program product having a computer readable storage medium according to the sixth aspect.

Other features and advantages of embodiments of the invention will become apparent from the following description of specific embodiments, taken in conjunction with the accompanying drawings, which illustrate, by way of example, the principles of embodiments of the invention.

Embodiments of the invention are provided by way of example, the advantages of which are explained in more detail below with reference to the accompanying drawings.
FIG. 1 schematically shows a flowchart of a method 100 for implementing UL transmission according to one embodiment of the invention. FIG. 2 schematically shows a schematic diagram of a UL transmission scheme according to one embodiment of the present invention. FIG. 3 schematically shows another schematic diagram of a UL transmission scheme according to another embodiment of the present invention. FIG. 4 schematically shows a flowchart of a method 400 for implementing UL transmission according to another embodiment of the invention. FIG. 5 schematically illustrates a flowchart of a method 500 of UL reception implementation according to one embodiment of the present disclosure. FIG. 6 schematically shows a flowchart of a method 600 of UL reception implementation according to another embodiment of the present disclosure. FIG. 7 schematically shows a block diagram of an apparatus 700 for implementing UL transmission according to one embodiment of the present disclosure. FIG. 8 schematically shows a block diagram of an apparatus 800 for implementing UL transmission according to another embodiment of the present disclosure. FIG. 9 schematically shows a block diagram of an apparatus 900 for implementing UL reception according to one embodiment of the present disclosure. FIG. 10 schematically shows a block diagram of an apparatus 1000 for implementing UL reception according to another embodiment of the present disclosure. FIG. 11 is a simplified illustration of apparatus 1110, which may be embodied as or included within a UE, and apparatus 1120, which may be embodied as or included within a base station, in the wireless networks described herein. FIG. 4 further shows a simplified block diagram.

Hereinafter, the solutions provided in the present disclosure will be described in detail through embodiments with reference to the accompanying drawings. It should be noted that these embodiments are provided only to enable those skilled in the art to better understand and practice the present disclosure, and are not intended to limit the scope of the present disclosure in any way.

In the accompanying figures, various embodiments of the present disclosure are illustrated in block diagrams, flowcharts, and other figures. Each block or blocks in the flowcharts may represent a module, program, or portion of code, which contains one or more executable instructions for performing a particular logical function, and which are described in the present disclosure. , blocks that are not necessarily required are indicated by dashed lines. Also, although the blocks are drawn in a particular sequence for performing method steps, in practice the blocks need not be performed in the exact sequence shown. For example, blocks may be performed in reverse sequence or concurrently, depending on the nature of their respective operations. It should be noted that each block in the block diagrams and/or flowcharts, and combinations thereof, can be implemented by dedicated hardware-based systems, or a combination of dedicated hardware and computer instructions, to perform the specified functions/operations. .

Generally, terms used in the claims are to be interpreted according to their ordinary meaning in the technical field, unless explicitly defined otherwise herein. A reference to "a/an/the/said 'element, device, component, means, step, etc.'", unless expressly stated otherwise, includes a plurality of such devices, components, means, units. shall be construed openly as any reference to an instance of at least one element, device, component, means, unit step, etc., without excluding steps, etc. Also, as used herein, the indefinite article "a/an" does not exclude a plurality of such steps, units, modules, devices, objects, and the like.

Additionally, in the context of this disclosure, User Equipment (UE) refers to terminals, mobile terminals (MT), subscriber stations (SS), portable subscriber stations (PSS). ), Mobile Station (MS), or Access Terminal (AT), where some or all of the functions of a UE, terminal, MT, SS, PSS, MS, or AT can be included. Further, in the context of this disclosure, the term "BS" may be used to refer to, for example, Node B (NodeB or NB), Evolved Node B (eNodeB or eNB), Radio Header (RH), Remote Radio Head (RRH) Head), relays, or low power nodes such as femto, pico, etc.

Embodiments of the present disclosure are directed to new solutions for UL transmission and reception. A solution may be implemented to support partial subframe transmission between a serving node such as an eNB and a terminal such as a UE. In particular, when a clear channel is detected on an unlicensed carrier, the terminal determines a transmission start position for UL transmission from multiple potential start positions in the subframe, and from the determined transmission start position UL transmission can be implemented. The serving node determines a reception start position for UL reception and performs UL reception from the determined reception start position. In this way, UL transmissions starting from partial subframes can be implemented. It may also additionally or alternatively support UL transmissions ending in partial subframes. In such a case, the serving node may send end location indication information to the terminal device and perform UL reception based on the end location indication information, where the reception end location for UL reception is a plurality of One of the potential end positions. Therefore, the terminal device can receive the end position indication information and perform UL transmission based on the end position indication information. In this way, once the channel enters the idle state, transmission can start from the current subframe instead of the next subframe, thus improving resource utilization efficiency. Also, the time delay between the UL data transmission and the UL grant transmission can be reduced, improving resource utilization efficiency.

In some embodiments of the present disclosure, the UL transmission may be an uplink cellular transmission. For uplink cellular transmission, a terminal equipment may constitute a UE such as a terminal, MT, SS, PSS, MS or AT. A serving node, on the other hand, may constitute a BS, such as a Node B (NodeB or NB) or an Evolved Node B (eNodeB or eNB).

According to another embodiment, the present invention may be applied to various communication systems including, but not limited to, Long Term Evolution (LTE) systems or Long Term Evolution Advanced (LTE-A) systems. Given the rapid advances in communications, there will undoubtedly be future types of wireless communication technologies and systems in which the present invention can be embodied. Accordingly, the scope of the present invention should not be viewed as limited only to the systems described above.

Some exemplary embodiments of the invention are described in detail below with reference to FIGS. However, these example embodiments are provided for illustrative purposes, and the disclosure is not limited to the specific details described with reference to the example embodiments.

Reference is first made to FIG. 1, which shows a flowchart of a method 100 for implementing UL transmissions according to one embodiment of the present disclosure. Method 100 may be performed by a terminal device such as, for example, a UE or other suitable device.

As shown in FIG. 1, method 100 begins at step 110 where, in response to detection of a clear channel on an unlicensed carrier, a starting transmission location for UL transmission is set to subframe is determined from a plurality of potential starting positions within .

According to embodiments of the invention, a subframe comprises a plurality of symbols. By way of example, a subframe is 1 ms and may have 14 symbols, eg symbols 0 through 13. However, it should be recognized that this subframe configuration is used in current LTE systems and is given for illustrative purposes only. Although this subframe configuration is an example in the following content, the present disclosure is not limited thereto, and in practice the subframes may have different configurations in other communication systems or future communication systems. Yes, eg, a subframe structure may have more or fewer symbols in a subframe.

The term "position" used in potential start position, potential end position, transmission start position, current position, next position, etc. may mean a time position or period of time in a subframe. In some embodiments, a position may correspond to a particular point in time in a subframe. Alternatively, the positions may correspond to symbols of the subframe. In this regard, a position may occupy a period of time, eg, the period of a symbol. In particular, in this sense a transmission start position can mean a target position from which a UL transmission can start, and a potential start position means a predetermined position that is a candidate for a transmission start position. obtain.

According to embodiments of the present invention, more than one potential starting position may be predefined in one subframe. In other words, in addition to subframe boundaries, it may also have one or more starting positions within a subframe. For example, the multiple potential starting positions may include any of subframe boundaries, slot boundaries, arbitrary symbol starting positions, and Uplink Pilot Time Slot (UpPTS) starting positions. That is, the potential start positions for UL transmissions can be any two or more of subframe boundaries, slot boundaries, arbitrary symbol start positions, and UpPTS start positions. A subframe boundary means that the UL transmission can start from a subframe boundary, which belongs to the whole subframe transmission. A slot boundary means that the UL transmission can start in the middle of the subframe or from the last 7 symbols in the subframe, which means half subframe transmission. Arbitrary symbol start position means that the UL transmission can start from any of symbols 0 to 13, i.e. each symbol in the subframe can be predefined as a potential start position, which is part It belongs to another form of subframe transmission. The UpPTS starting position means that the UL transmission can start from the last 6 symbols in the subframe, which means a further form of partial subframe transmission.

According to embodiments of the present invention, a Clear Channel Assessment (CCA) or an Extended Clear Channel Assessment (eCCA) may be performed. CCA/eCCA allows a transmitter to detect whether a channel is available on an unlicensed carrier. In response to detecting that a channel has become available, the transmitter may determine a transmission starting position from multiple potential starting positions in several ways. In some embodiments, it is first detected whether the current location is a potential starting location. If the current location is determined to be a potential start location, the potential start location may be determined as the target location for UL transmission, ie, the transmission start location. Otherwise, detection of potential starting positions continues until a potential starting position is detected and determined as the transmission starting position. Additionally, a reservation signal can be sent to reserve a clear channel prior to the determined transmission start location. That is, the reservation signal can be transmitted before UL transmission is performed.

In addition, starting position indication information, which is information indicating the determined transmission starting position for UL transmission, may be further transmitted to the serving node, such as the eNB. UL transmissions may not start from a fixed starting position, such as a subframe boundary, thus UL reception can be considerably facilitated, so that the serving node does not know where the UL transmissions start. Beneficial. It is also possible to detect the UL signal in a blind manner, in which case the serving node is not required to know the transmission start position. However, information about the transmission start position ensures the accuracy of the detected signal.

At step 120, UL transmission may be performed from the determined transmission start location. UL transmission comprises transmitting a Physical Uplink Control Channel (PUCCH) signal and a Physical Uplink Sharing Channel (PUSCH), the PUSCH signal being a scheduling request, ACK/ It may include NACK, Channel State Information (CSI), etc. According to embodiments of the present disclosure, once the starting transmission position is determined, UL transmission can be performed from the determined starting transmission position. Therefore, in embodiments of the present disclosure, the determined transmission start location is typically the earliest potential location from which UL transmission can start, thus improving resource utilization efficiency.

FIG. 2 schematically shows a schematic diagram of a UL transmission scheme according to one embodiment of the present disclosure. FIG. 2 exemplarily shows four subframes, subframes 0 through 3 . For subframe 0 there are two potential starting positions 211 and 213 and for subframe 1 there are likewise two potential starting positions 214 and 215 . Specifically, potential starting positions 211 and 214 correspond to subframe boundaries, ie starting positions of subframes or starting positions of the first time slot in a subframe. Potential starting positions 213 and 215 correspond to slot boundaries, ie starting positions of the second time slot in the subframe. During CCA/eCCA, the terminal may determine that a channel is available at location 212 . Since position 212 is not a potential starting position, the terminal device moves from position 212 to a potential starting position, e.g. Reservation signals may be transmitted until starting position 213 is reached. A potential starting position 213 can be determined as a transmission starting position for UL transmission, after which UL transmission can start from the determined transmission starting position. Thus, in this example, it is clear that the transmission start position is determined at potential position 213 and UL transmission is performed from position 213 in the current subframe without waiting until the next subframe.

FIG. 3 schematically shows another schematic diagram of a UL transmission scheme according to another embodiment of the disclosure. The UL transmission scheme shown in FIG. 3 is similar to that in FIG. 2, except that the locations where channels are available are different. In FIG. 3, during CCA/eCCA, the transmitter may determine that the channel is available at location 212 ′ instead of location 212 . In FIG. 3, position 212' is not a potential position, but behind potential positions 211 and 213, so the terminal transmits reservation signals from position 212' until it reaches the next potential position. can. The next potential location is potential location 214, which is, for example, the earliest potential start location from location 212' where the clear channel was detected, and potential location 214 can be determined as the transmission start location. . In such a case, the UL subframe transmission may start from the next subframe boundary, which is the earliest potential starting position from position 212'.

Here, FIGS. 2 and 3 show examples of two potential transmission locations in a subframe for illustrative purposes only, and indeed the present disclosure is not limited thereto. In some embodiments of the present disclosure, there may be different potential starting positions than those shown in FIG. 2 or FIG. 3 and/or there are more potential starting positions. there is a possibility. In fact, these potential starting positions can be any suitable combination of subframe boundaries, slot boundaries, arbitrary symbol starting positions, and UpPTS starting positions.

The present disclosure also supports UL transmissions ending in partial subframes, which will be described in detail later with reference to FIG. Solutions supporting UL transmissions ending in partial subframes may be used as additional solutions to solutions supporting UL transmissions starting from partial subframes. Alternatively, solutions supporting UL transmissions ending in partial subframes may be implemented as alternative solutions to solutions supporting UL transmissions starting from partial subframes. In other words, the two solutions can be used together or the two solutions can be used separately and independently. That is, each of the two solutions can be claimed separately.

Reference is made to FIG. 4, which shows a flowchart of a method 400 for implementing UL transmission according to another embodiment of the invention. Method 400 may be performed by a terminal such as a UE or other suitable device.

As shown in FIG. 4, the method begins at 410 where end location indication information is received indicating the transmission end location of the UL transmission. A transmission end location as used herein may refer to a target location where the UL transmission will end. The ending location indication information can be received in various ways. For example, the end position indication information may be received from a new RRC signal or a bit in DCI format 1C that implicitly or explicitly indicates the end of transmission position.

The transmission end location for the UL transmission can be one of multiple potential end locations. Potential end positions may refer to predefined positions that are candidates for transmission end positions. In addition to terminating on a full subframe basis, embodiments of the present disclosure allow UL transmissions to terminate on a partial subframe basis. In other words, the UL transmission can end within a subframe and it is not required that the UL transmission end at the end of the subframe.

In some embodiments of the present disclosure, the plurality of potential end positions includes any of subframe boundaries, slot boundaries, arbitrary symbol end positions, and predetermined symbol end positions. Subframe boundaries and slot boundaries have already been described herein with reference to solutions supporting UL transmissions starting from partial subframes and are therefore not detailed here. An arbitrary symbol ending position means that the UL transmission can end at any symbol. The end position of a given symbol refers to a solution where the UL transmission is allowed to end at the end position of a given symbol instead of the end position of any symbol. For illustrative purposes, examples of predetermined symbols are described below.

As previously mentioned, there may be one or more predefined potential end positions within a subframe. Each potential end position may correspond to a symbol of a subframe, either periodically or aperiodically. In some embodiments of the present disclosure, a structure similar to a Downlink Pilot Time Slot (DwTPS) may be used. That is, the predetermined symbols may include symbols 3, 6, 9, 10, 11, and 12. In addition, the predetermined symbols may include subsets of symbols 3, 6, 9, 10, 11, 12.

In other embodiments, the potential end positions may include every k symbols, eg, symbols 0, 3, 6, 9, and 12 (k=3). For example, the potential end position can be set to the following formula.

mod (N, Nd) = x (x∈[0,Nd-1]), (1)
where N represents the index of the symbol in the subframe, Nd is an integer representing the interval between two potential end positions, and an integer ranging from 1 to the total number of symbols in the subframe, e.g., 14. could be. According to equation (1), the smaller Nd, the more densely the potential locations can be determined.

It should be noted that the above formulas are set forth by way of illustration and not by way of limitation. In alternative embodiments, there may be an aperiodic configuration of potential positions. For example, the potential positions may correspond to symbols 0, 3, 8, and 12.

Then, at step 420, UL transmission can be performed based on the end location indication information. As shown in FIG. 2, the UL transmission may end at location 216, the beginning of subframe 3. In other words, the UL transmission may end at the end of subframe 2. On the other hand, as shown in FIG. 3, the UL transmission may end at position 216', the slot boundary of the second slot in subframe 3.

Here, FIGS. 2 and 3 show two different potential end positions within a subframe for illustrative purposes only, and the present disclosure is not limited thereto. In some embodiments of the present disclosure, there may be different potential end positions than those shown in FIG. 2 or FIG. 3 and/or there are a greater number of potential end positions. Sometimes. In fact, the potential end positions may be any suitable combination of subframe boundaries, slot boundaries, arbitrary symbol end positions, and predetermined symbol end positions. Figures 2 and 3 also show UL transmissions that support both partial subframe start and partial subframe end. However, as noted above, the partial subframe start and partial subframe end solutions can also be used separately and independently and are therefore separately claimed.

Reference is now made to FIG. 5, which schematically depicts a flowchart of a method 500 of UL reception implementation according to one embodiment of the present disclosure, which may be implemented in a serving node such as an eNB.

As shown in FIG. 5, method 500 begins at step 510, where for UL reception, a reception start position is determined, one of multiple potential start positions within a subframe. be done. As described with reference to FIG. 1, UL transmission can be initiated from any of multiple potential starting locations. The multiple potential start positions include any of subframe boundaries, slot boundaries, symbol start positions, and uplink pilot time slot (UpPTS) start positions. In such cases, at a serving node, such as an eNB, the serving node may perform blind detection on all potential starting positions to determine the transmission starting position for UL transmissions. The determined transmission start position for UL transmission is used as the reception start position for UL reception.

In other embodiments of the present disclosure, the terminal device may send starting position indication information to the serving node to indicate the transmission starting position where UL transmission is actually performed. The serving node can receive the starting position indication information, obtain the starting transmission position therefrom, and determine the obtained starting transmission position as the starting reception position for UL reception.

Then, in step 520, UL reception is performed from the determined reception starting position to obtain the data transmitted in the UL signal.

Further reference is made to FIG. 6 to describe a solution to support UL reception ending in partial subframes, which schematically shows a flow chart of a method 600 of implementing UL reception according to another embodiment of the present disclosure. . Method 600 can be performed at a serving node, such as an eNB.

First, in step 610, end position indication information indicating the transmission end position of UL transmission is transmitted.

The end position of UL transmission may be determined by a serving node, such as an eNB. The eNB may determine the end position in any suitable manner. In embodiments of the present disclosure, the end position may be determined based on the default transmission position, amount of signal to be transmitted, and maximum channel occupancy time allowed, or other suitable information. Alternatively, the UL transmission end position can be determined as a fixed number of subframes from the default transmission start position.

The ending location indication information can be received in various ways. For example, the termination indication information may be sent implicitly or explicitly by a new RRC signal or a bit in DCI format 1C.

In some embodiments of the present disclosure, the multiple potential end positions may include any of subframe boundaries, slot boundaries, arbitrary symbol end positions, and predetermined symbol end positions. A given symbol may include multiple symbols within a subframe that are periodic or aperiodic. For example, the predetermined symbols may include symbols 3, 6, 9, 10, 11, 12, or any subset thereof. In other embodiments of the present disclosure, the potential end positions may include every k symbols, eg, symbols 0, 3, 6, 9, and 12 (k=3). That is, the predetermined symbols may include symbols 0, 3, 6, 9, and 12. However, it is understood that the predetermined symbols can also be symbols 0, 3, 8, and 12, or any other symbol in a different aperiodic or periodic configuration.

Then, at step 620, UL reception is performed based on the end-of-transmission position of the UL transmission. In other words, UL reception may end at the end of transmission position. If the terminal does not perform UL transmission in the default transmission position, the serving node re-estimates the actual end position based on the difference between the default transmission position and the actual transmission position and the determined transmission end position. .

If the UL transmission is allowed to end within a subframe, the transport block size for the UL transmission should be adjusted accordingly. The transport block size indicates the size of the data block transmitted in the UL transmission. According to embodiments of the invention, the transport block size may be adjusted according to a scaling factor that may be determined in various ways. In some embodiments, the ending symbol of the last subframe may be considered the available symbol of the partial subframe. It may determine a scaling factor associated with the number of available symbols and determine the transport block size based on the scaling factor. Magnification can be defined in several ways. Table 1 shows examples of multipliers associated with different numbers of available symbols.

A scaling factor may be determined based on Table 1 and the number of available symbols in a partial subframe. For example, if the number of available symbols is 4, the multiplier is determined to be 0.25, and if the number of available symbols is 10, the multiplier is determined to be 0.75.

上記において、Ｎ’_ＰＲＢは第１のリソースブロック数を表し、Ｎ_ＰＲＢは第２のリソースブロック数を表し、Ｆａｃｔｏｒは倍率を表す。このように、搬送ブロックサイズが決定され得る。 In some embodiments, the transport block size may be determined based on scaling factors in several ways. As an example, a first resource block number may be obtained that indicates the number of resource blocks allocated for transmission. For serving nodes such as eNBs, the first number of resource blocks may be determined in real time. A second number of resource blocks can then be determined based on the first number of resource blocks and the scaling factor. In one embodiment, the second number of resource blocks may be determined as follows.

In the above, N′ _PRB represents the number of first resource blocks, N _PRB represents the number of second resource blocks, and Factor represents the scaling factor. In this way the transport block size can be determined.

It should be noted that the above examples are provided for illustrative purposes only. In fact, it is also possible to determine the transport block size by other methods, eg by means of a transport block size table.

FIG. 7 schematically shows a block diagram of an apparatus 700 for implementing UL transmission according to one embodiment of the present disclosure. According to an embodiment of the present disclosure, apparatus 700 may be implemented to support partial subframe initiated UL transmissions in a user terminal, such as a UE.

As shown in FIG. 7, the device 700 has a transmission position determiner 710 and a UL transmission performer 720 . A transmission position determiner is configured, in response to detection of a clear channel on an unlicensed carrier, to determine a starting transmission position from a plurality of potential starting positions within a subframe for UL transmission. can UL transmission performer 720 can be configured to perform UL transmission from the determined transmission start location.

In embodiments of the present disclosure, the multiple potential start positions may include any of subframe boundaries, slot boundaries, arbitrary symbol start positions, and UpPTS start positions.

In further embodiments of the present disclosure, device 700 may further comprise a reservation signal transmitter 730 . The reservation signal transmitter 730 reserves a clear channel by transmitting a reservation signal before UL transmission is performed.

In a further embodiment of the present disclosure, the device 700 may comprise a starting position transmitter 740 configured to transmit a transmission starting position indication information indicating the determined transmission starting position for UL transmission. In such a way, a serving node, such as an eNB, can know the actual transmission start location.

FIG. 8 schematically shows a block diagram of an apparatus 800 for implementing UL transmission according to another embodiment of the present disclosure. According to an embodiment of the present disclosure, apparatus 800 can be implemented in a user terminal device, such as a UE, to support partial subframe terminated UL transmissions.

As shown in FIG. 8 , the device 800 has a termination instruction receiver 810 and a UL transmission execution unit 820 . The end indication receiving unit 810 can be configured to receive end position indication information indicating a transmission end position for UL transmission. The UL transmission performer 820 can be configured to perform UL transmission based on the end location indication information.

In embodiments of the present disclosure, the transmission end location for UL transmissions may be one of multiple potential end locations.

In further embodiments of the present disclosure, the plurality of potential end positions may include any of subframe boundaries, slot boundaries, arbitrary symbol end positions, and predetermined symbol end positions.

Apparatus 800 may be incorporated into and form a component of apparatus 700, in which case UL transmission performers 720 and 820 may be incorporated into one unit. Alternatively, device 800 may be implemented in a separate device from device 700 and is therefore claimed alone.

FIG. 9 schematically shows a block diagram of an apparatus 900 for implementing UL reception according to one embodiment of the present disclosure. According to an embodiment of the present disclosure, apparatus 900 can be implemented in a serving node, such as an eNB, to support UL reception starting from partial subframes.

As shown in FIG. 9 , the device 900 has a reception position determiner 910 and a UL reception performer 920 . The reception position determiner 910 may be configured to determine a reception start position that is one of multiple potential start positions within a subframe for UL reception. The UL reception performer 920 may be configured to perform UL reception from the determined reception start location.

In embodiments of the present disclosure, the multiple potential starting positions may include subframe boundaries, slot boundaries, symbol starting positions, and uplink pilot time slot (UpPTS) starting positions.

In another embodiment of the present disclosure, the device 900 may further comprise a start position receiver 930, which receives a reception start position indication information indicating a transmission start position at which UL transmission is performed. can be configured to In that case, the reception position determination unit 910 is configured to determine the reception start position for UL reception based on the transmission start position indicated by the start position indication information.

FIG. 10 schematically shows a block diagram of an apparatus 1000 for implementing UL reception according to another embodiment of the present disclosure. According to an embodiment of the present disclosure, apparatus 1000 can be implemented in a serving node, such as an eNB, to support UL reception ending in partial subframes.

As shown, device 1000 comprises termination indication transmitter 1010 and UL reception performer 1020 . The end indication transmitting section 1010 may be configured to transmit end position indication information indicating the transmission end position of UL transmission. The UL reception executor 1020 may be configured to perform UL reception based on the transmission end position of the UL transmission.

In embodiments of the present disclosure, the reception end location for UL reception may be one of multiple potential end locations.

In further embodiments of the present disclosure, the plurality of potential end positions may include any of subframe boundaries, slot boundaries, arbitrary symbol end positions, and predetermined symbol end positions.

Apparatus 1000 may be incorporated into and form a component of apparatus 900, in which case UL reception executor 920 and 1020 may be incorporated into one unit. Alternatively, device 1000 may be implemented as a separate device from device 900 and is therefore claimed alone.

So far, the devices 700, 800, 900 and 1000 have been briefly described with reference to FIGS. 7-10. It should be noted that the devices 700, 800, 900, and 1000 may be configured to implement functionality similar to that described with reference to FIGS. 1-6. Therefore, for details on the operation of the modules in these devices, reference may be made to the description made with reference to FIGS. 1 to 6 for the respective steps of the method.

Additionally, components of devices 700, 800, 900, and 1000 may be embodied in hardware, software, firmware, and/or any combination thereof. For example, the components of apparatuses 700, 800, 900, and 1000 may each be implemented by a circuit, processor, or any other suitable selection device. Additionally, those skilled in the art will appreciate that the foregoing examples are for illustration only and not for limitation, and that the present disclosure is not limited thereto. A person skilled in the art can easily conceive many variations, additions, deletions and modifications from the teachings provided herein, and all these variations, additions, deletions and modifications shall fall within the protection scope of the present disclosure. to go into.

Additionally, in some embodiments of the present disclosure, devices 700, 800, 900, and 1000 may each have at least one processor. The at least one processor suitable for use with embodiments of the present disclosure may include, by way of example, both general and special purpose processors now known or developed in the future. Devices 700, 800, 900, and 1000 may each have at least one memory. The at least one memory may include, for example, semiconductor memory devices such as RAM, ROM, EPROM, EEPROM and flash memory devices. At least one memory may be used to store a program of computer-executable instructions. Programs may be written in any high-level and/or low-level compilable or interpretable programming language. According to an embodiment, the computer-executable instructions cause the apparatus 700, 800, 900, and 1000, in conjunction with at least one processor, to at least perform operations according to methods as discussed with reference to FIGS. 1-6, respectively. can be configured as

FIG. 11 shows a device 1110 that may be embodied as or included in a terminal device such as a UE for a wireless network in a wireless network and a base station such as a NB or eNB as described herein. Also shown is a simplified block diagram of an apparatus 1120 that may be embodied in or included within a base station.

Device 1110 has at least one processor 1111 , such as a data processor (DP), and at least one memory (MEM) 1112 coupled to processor 1111 . Device 1110 may further have a transceiver (TX/RX) 1113 coupled to processor 1111 , which may be operable to communicatively connect to device 1120 . MEM 1112 stores a program (PROG) 1114 . PROG 1114 may include instructions that, when executed on an associated processor 1111, enable apparatus 1110 to operate, eg, perform method 100 and/or method 400, in accordance with embodiments of the present disclosure. The combination of at least one processor 1111 and at least one MEM 1112 may form processing means 1115 suitable for implementing various embodiments of the present disclosure.

The device 1120 has at least one processor 1121 such as a DP and at least one MEM 1122 coupled to the processor 1121 . Device 1120 may further have a suitable TX/RX 1123 coupled to processor 1121 , which may be operable for wireless communication with device 1110 . MEM 1122 stores PROG 1124 . PROG 1124, when executed on associated processor 1121, enables apparatus 1120 to operate according to embodiments of the present disclosure, eg, perform methods 500 and/or 600. The combination of at least one processor 1121 and at least one MEM 1122 may form processing means 1125 suitable for implementing various embodiments of the present disclosure.

Various embodiments of the present disclosure may be implemented by programs, software, firmware, hardware, or combinations thereof executed by one or more processors 1111, 1121.

MEMs 1112 and 1122 may be of any type suitable for the local technological environment, including, but not limited to, semiconductor-based memory devices, magnetic memory devices and systems, optical memory devices and systems, fixed It may be implemented using any suitable data storage technology such as memory and removable memory.

Processors 1111 and 1121 may be of any type suitable for the local technological environment, non-limiting examples include general purpose computers, special purpose computers, microprocessors, digital signal processors DPS, and multicore. It may include one or more processors based on the processor architecture.

Additionally, the present disclosure may also provide a carrier containing the computer program described above, the carrier being one of an electrical signal, an optical signal, a radio signal, or a computer-readable medium. The computer readable medium can be, for example, random access memory (RAM), read only memory (ROM), flash memory, magnetic tape, optical compact discs such as CD-ROMs, DVDs, and Blue-ray discs, or electronic memory devices. obtain.

The techniques described herein can be implemented by various means, and an apparatus that performs one or more functions of the corresponding apparatus described in one embodiment can be implemented not only by means of the prior art, but also by one It also has means for implementing one or more functions of the corresponding apparatus described in the embodiment, which may be configured as individual means for separate functions or to perform two or more functions. have the means. For example, these techniques may be implemented in hardware (one or more devices), firmware (one or more devices), software (one or more modules), or combinations thereof. With firmware or software, implementation can be through modules (eg, procedures, functions, and so on) that perform the functions described herein.

Embodiments herein have been described above with reference to block diagrams and flowchart illustrations of methods and apparatus. It will be understood that each block of the block diagrams and flowchart illustrations, and combinations of blocks in the block diagrams and flowchart illustrations, respectively, can be implemented by various means including computer program instructions. These computer program instructions may be implemented by a general purpose computer, a specific use computer, or a computer program such that the instructions running on a computer or other programmable data processing apparatus produce the means for performing the functions identified in the flowchart blocks. It can be loaded onto other programmable data processing devices to create machines.

Although this specification contains many specific implementation details, these should not be construed as limitations on the scope of implementation or what may be claimed, rather than specific implementation details of particular implementations. It should be construed as a description of features that may be unique to the embodiments. Certain features that are described in this specification in the context of separate embodiments can also be implemented in combination in a single embodiment. Conversely, various features that are described in the context of a single embodiment can also be implemented in multiple embodiments separately or in any suitable subcombination. Further, features are described above as working in particular combinations, and even if originally claimed as such, one or more features from the claimed combination may in some cases be cut from the combination. and claimed combinations may be directed to subcombinations or variations of subcombinations.

It will be apparent to those skilled in the art that as technology advances, the inventive concept can be implemented in various ways. The above-described embodiments are provided to illustrate rather than limit the disclosure, and modifications and variations are possible without departing from the spirit and scope of the disclosure, as those skilled in the art will readily appreciate. It will be understood that there is Such modifications and variations are considered to fall within the scope of the disclosure and appended claims. The protection scope of the disclosure is defined by the appended claims.

Claims (6)

A method implemented by a User Equipment (UE), comprising:
Receiving information from the base station indicating the end symbol of the PUSCH (Physical Uplink Shared Channel) in the unlicensed spectrum;
sensing channels on the unlicensed spectrum; and
transmitting the PUSCH until the end symbol after sensing that the channel is idle;
has
The method, wherein the termination symbol is one of a plurality of predetermined symbols within a subframe. 2. The method of claim 1 , wherein the plurality of predetermined symbols includes symbol 12. A method implemented by a base station, comprising:
Sending information indicating the end symbol of the PUSCH (Physical Uplink Shared Channel) in the unlicensed spectrum to the user equipment (UE: User Equipment), and
receiving the PUSCH until the end symbol after the user equipment senses that a channel on the unlicensed spectrum is idle;
The method, wherein the termination symbol is one of a plurality of predetermined symbols within a subframe. 4. The method of claim 3 , wherein the plurality of predetermined symbols includes symbol 12. Receive information from the base station indicating the end symbol of the PUSCH (Physical Uplink Shared Channel) in the unlicensed spectrum,
sense channels on the unlicensed spectrum;
configured to transmit the PUSCH until the end symbol after sensing that the channel is idle;
User Equipment (UE), wherein the termination symbol is one of a plurality of predetermined symbols within a subframe. Send information indicating the end symbol of the PUSCH (Physical Uplink Shared Channel) in the unlicensed spectrum to the user equipment ( UE : User Equipment) ,
configured to receive the PUSCH until the end symbol after the user equipment senses that a channel on the unlicensed spectrum is idle;
The base station, wherein the termination symbol is one of a plurality of predetermined symbols within a subframe.

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