CN110099451B - Scheduling method and device in wireless communication - Google Patents
Scheduling method and device in wireless communication Download PDFInfo
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- CN110099451B CN110099451B CN201910380211.5A CN201910380211A CN110099451B CN 110099451 B CN110099451 B CN 110099451B CN 201910380211 A CN201910380211 A CN 201910380211A CN 110099451 B CN110099451 B CN 110099451B
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- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
Abstract
The invention discloses a scheduling method and a scheduling device in wireless communication. The UE firstly receives a first signaling, and the first signaling indicates a first time-frequency resource; the first wireless signal is then transmitted on the target time-frequency resource. Wherein the first signaling comprises scheduling information of the first wireless signal. The bandwidth occupied by the first radio signal is a first bandwidth, whether the target time-frequency resource comprises a second time-frequency resource or not is related to an association factor set, and the association factor set comprises at least one of { first bandwidth, first information }. The invention judges whether the target time frequency resource comprises the second time frequency resource according to the association factor set, thereby avoiding the conflict between the uplink HARQ-ACK and the uplink data, fully utilizing the uplink channel resource and improving the overall spectrum efficiency of the system.
Description
The present application is a divisional application of the following original applications:
application date of the original application: 2016 (month 02 and day 01)
- -application number of the original application: 201610070382.4
The invention of the original application is named: scheduling method and device in wireless communication
Technical Field
The present invention relates to a transmission scheme in a wireless communication system, and more particularly, to a scheduling method and apparatus for supporting narrowband transmission.
Background
NB-IOT (narrow band Internet of Things) was established at #69 times the full meeting at 3GPP (3 rd Generation Partner Project) RAN (Radio Access Network) # 69. NB-IOT supports 3 different modes of operation (RP-151621):
1. stand-alone operation, i.e. deployment on the spectrum used by GERAN systems.
2. Guard band operation, i.e. deployment on unused resource blocks in the guard band of an LTE (Long Term Evolution) carrier
3. In-band operation, i.e. deployment on resource blocks on an LTE carrier
Further, in NB-IOT, a UE (User Equipment) supports a Radio Frequency (RF) bandwidth of 180kHz (kiloHertz) in both uplink and downlink, that is, a PRB (Physical Resource Block).
The 3GPP RAN1#83 conference and NB-IOT system introduced the concept of Single-tone transmission and Multi-tone transmission in the uplink. Single-tone means that the UE transmits on only one subcarrier when transmitting uplink. The Multi-tone transmission follows the current LTE (Long Term Evolution) uplink SC-FDMA (Single Carrier-Frequency Division Multiple Access) transmission scheme, i.e., transmission is performed on Multiple subcarriers. One benefit of single frequency transmission is that UE uplink radio frequency is simple to implement, has no problem of PAPR (Peak to Average Power Ratio), is low in implementation cost, and can keep low Power consumption to improve the available time of the terminal battery.
For the conventional LTE system, uplink HARQ (Hybrid Automatic Repeat reQuest) -ACK (Acknowledgement) can be transmitted on PUCCH (Physical Uplink Control Channel) or PUSCH. For NB-IOT, an intuitive idea is to reduce the kind of physical layer channel as much as possible to reduce the complexity of the UE. Thus, one possible scheme is that HARQ-ACKs are transmitted on physical layer data channels, i.e. physical layer control channels are not designed specifically for HARQ-ACKs.
Disclosure of Invention
In a 3GPP RAN1# #83Ad _hocconference, resource units (Resource units) occupying different milliseconds are respectively defined for uplink transmission based on Single-tone and Multi-tone. For Single-tone, PUSCH (Physical Uplink Shared Channel) resource units corresponding to 15kHz subcarrier intervals occupy 8ms (millisecond) in the time domain, and PUSCH resource units corresponding to 3.75kHz subcarrier intervals occupy 32ms in the time domain. For Multi-tone, when 3 subcarriers are occupied by PUSCH, the corresponding resource unit occupies 4ms in the time domain, when 6 subcarriers are occupied by PUSCH, the corresponding resource unit occupies 2ms in the time domain, and when 12 subcarriers are occupied by PUSCH, the corresponding resource unit occupies 1ms in the time domain.
The inventor finds, through research, that based on the resource unit defined above, in a Single-tone scenario where the subcarrier spacing is 3.75kHz, one uplink transmission needs to occupy at least 32ms. However, if the UL HARQ-ACK of the DL-SCH (Downlink Shared Channel) is put into the PUSCH for transmission, it is likely that the corresponding UL Grant of the PUSCH is earlier than the corresponding DL Grant of the DL-SCH, and in this scenario, the base station cannot know whether the PUSCH needs to be embedded for transmission of the UL HARQ-ACK when scheduling the PUSCH, and cannot notify the UE of performing related operations such as rate matching to improve the spectrum efficiency. An intuitive scheme is that UL HARQ-ACK and the like corresponding to the PDSCH wait for PUSCH transmission scheduled by the next UL Grant, however, since time windows of uplink and downlink scheduling under Single-tone are not matched, taking 3.75kHz as an example, the downlink scheduling window is 1ms, and the uplink is 32ms, the above method may bring a large amount of delay of uplink feedback corresponding to downlink data transmission.
The invention discloses a method in UE supporting narrow-band communication, which comprises the following steps:
-step a. Receiving first signalling, the first signalling indicating first time frequency resources.
-step b. Transmitting the first radio signal on the target time-frequency resource.
Wherein the first signaling comprises scheduling information of the first wireless signal. The target time frequency resource is the first time frequency resource, or the target time frequency resource is the part of the first time frequency resource except the second time frequency resource. The bandwidth occupied by the first wireless signal is a first bandwidth, whether the target time-frequency resource comprises a second time-frequency resource is related to an association factor set, the association factor set comprises at least one of { the first bandwidth and first information }, and the first information indicates whether the target time-frequency resource comprises the second time-frequency resource.
One feature of the foregoing method is that the UE determines whether the first time-frequency resource includes the second time-frequency resource according to the association factor set. Compared with the method which does not occupy the second time frequency resource completely, the method improves the resource utilization efficiency.
As an embodiment, the position of the second time-frequency resource in the first time-frequency resource is fixed.
As an embodiment, the set of association factors includes first information, the first information being indicated by the first signaling.
As an embodiment, the first information is indicated by one information bit in the first signaling.
As an embodiment, the scheduling information includes at least one of { MCS (Modulation and Coding Scheme, modulation and Coding strategy), NDI (New Data Indicator), RV (redundancy Version), TBS (Transmission Block Size) }.
As an embodiment, the first signaling is physical layer signaling. As an embodiment, the first signaling is DCI (Downlink Control Information) for uplink grant.
As an embodiment, the transmission Channel corresponding to the first wireless signal is UL-SCH (Uplink Shared Channel).
As an embodiment, the logical Channel corresponding to the first radio signal includes at least one of { CCCH (Common Control Channel), DCCH (Dedicated Control Channel), DTCH (Dedicated Traffic Channel) }.
As an embodiment, the first time-frequency resource includes T1 subframes in the time domain and P1 subcarriers in the frequency domain, and T1 and P1 are positive integers respectively. As a sub-embodiment of this embodiment, the second time-frequency resource includes, in the time domain, T2 subframes of the T1 subframes, where T2 is smaller than T1. As another sub-embodiment of this embodiment, the second time-frequency resource includes P2 sub-carriers of the P1 sub-carriers in a time domain, and P2 is less than or equal to P1.
Specifically, according to an aspect of the present invention, the step a further includes the steps of:
step A0. receives the second signaling.
Wherein the second signaling is a high layer signaling, and the second signaling indicates a third time frequency resource. The second time frequency resource is an overlapping portion of the first time frequency resource and the third time frequency resource.
The essence of the method is that the base station can semi-statically reserve the time-frequency resource (i.e. the third time-frequency resource) for the HARQ-ACK. Compared with the scheme of the fixed (i.e. not configurable) second time frequency resource, the method is more flexible
As an embodiment, the first signaling includes first information indicating that the target time-frequency resource does not include the second time-frequency resource, and the mapping from the first wireless signal to the target time-frequency resource adopts a rate matching manner to avoid occupying the second time-frequency resource.
As an embodiment, the second signaling is UE specific.
As an embodiment, the second signaling is higher layer signaling and the third time-frequency resource is periodic in time domain.
As an embodiment, the second signaling is higher layer signaling.
As an embodiment, the second signaling is cell common signaling.
As an embodiment, the second signaling is RRC (Radio Resource Control) common signaling.
As an embodiment, the second signaling is RRC specific (Dedicated) signaling.
As an embodiment, the second signaling is physical layer signaling.
As an embodiment, the third time-frequency resource is a time-frequency resource reserved for HARQ-ACK.
As an embodiment, the third time-frequency resource is a time-frequency resource reserved for UCI (Uplink Control Information), where the UCI includes at least HARQ-ACK in { HARQ-ACK, CSI (Channel Status Information) }.
Specifically, according to one aspect of the present invention, the step a further includes the following step A1 and step A2, and the step B further includes the following step B1:
-a step a1. Receiving a third signalling
-a step a2. Receiving a second radio signal
-step b1. Transmitting a third radio signal, the third radio signal indicating whether the second radio signal is correctly decoded.
The third signaling comprises scheduling information of the second wireless signal, and the third signaling indicates a time-frequency resource occupied by the third wireless signal.
As an embodiment, the third wireless signal is transmitted in a second time-frequency resource.
As an embodiment, the transport channel for carrying the second radio signal is a DL-SCH.
As an embodiment, the third signaling is physical layer signaling.
As an embodiment, the third signaling is DCI for downlink grant.
As an embodiment, the third signaling indicates, from the third time-frequency resources, the time-frequency resources occupied by the third radio signal.
In particular, according to one aspect of the invention, said target time-frequency resource is a portion of the first time-frequency resource excluding the second time-frequency resource if the first bandwidth is less than or equal to a given threshold.
As an example, the given threshold is 3.75kHz.
As an example, the given threshold is 15kHz.
As an example, the given threshold is 45kHz.
As an example, the given threshold is 90kHz.
The method is characterized in that if the mode of Single-tone is adopted for UL-SCH transmission, that is, the UL-SCH occupies a smaller first bandwidth, the number of milliseconds occupied by the UL-SCH is larger. Due to the fact that the time windows occupied by the dispatching of the PUSCH and the dispatching of the PDSCH are different, in order to avoid the situation that whether the PUSCH contains the UL HARQ-ACK corresponding to the PDSCH cannot be determined when the PUSCH is dispatched by a base station, under a Single-tone scene, some resources are reserved by the base station for UL HARQ-ACK transmission. The reserved resources are not used for transmission of PUSCH even if there is no UL HARQ-ACK transmission on the resources.
In particular, according to one aspect of the invention, it is characterized in that said target time-frequency resource is a first time-frequency resource if the first bandwidth is greater than a given threshold; or if the first bandwidth is larger than a given threshold, whether the target time-frequency resource comprises the second time-frequency resource is indicated by the first information.
As an embodiment, if the first bandwidth is less than or equal to a given threshold, the first information is not included in the first signaling; first information is included in the first signaling if the first bandwidth is greater than a given threshold.
As a sub-embodiment of this embodiment, the first information is a 1-bit indication, '1' indicates that the target time-frequency resource includes the second time-frequency resource, and '0' indicates that the target time-frequency resource does not include the second time-frequency resource.
As a sub-embodiment of this embodiment, the first information is a 1-bit indication, '0' indicating that the target time-frequency resource includes the second time-frequency resource, and '1' indicating that the target time-frequency resource does not include the second time-frequency resource.
The method is characterized in that if the first bandwidth is less than or equal to the given threshold, it means that the base station always reserves some uplink resources for transmitting the UL HARQ-ACK corresponding to the DL-SCH, and no dynamic indication of the first information is required. In this scenario, the first signaling does not need to contain the first information, so as to save the dynamic signaling overhead.
The invention discloses a method in a base station supporting narrow-band communication, which comprises the following steps:
-step a. Transmitting a first signaling, the first signaling indicating a first time-frequency resource.
-step b. Receiving a first radio signal on a target time-frequency resource.
Wherein the first signaling comprises scheduling information of the first wireless signal. The target time frequency resource is the first time frequency resource, or the target time frequency resource is the part of the first time frequency resource except the second time frequency resource. The bandwidth occupied by the first radio signal is a first bandwidth, whether the target time frequency resource comprises a second time frequency resource or not is related to the associated factor set, the associated factor set comprises at least one of { first bandwidth and first information }, and the first information indicates whether the target time frequency resource comprises the second time frequency resource or not.
Specifically, according to an aspect of the present invention, the step a further includes the steps of:
step A0. sends the second signaling.
Wherein the second signaling is a high layer signaling, and the second signaling indicates a third time frequency resource. The second time frequency resource is an overlapping portion of the first time frequency resource and the third time frequency resource.
Specifically, according to one aspect of the present invention, the step a further includes the following step A1 and step A2, and the step B further includes the following step B1:
-step a1. Sending a third signalling
-a step a2. Transmitting a second radio signal
-step b1. Receiving a third radio signal, the third radio signal indicating whether the second radio signal is correctly decoded.
The third signaling comprises scheduling information of the second wireless signal, and the third signaling indicates a time-frequency resource occupied by the third wireless signal.
In particular, according to one aspect of the invention, said target time-frequency resource is a portion of the first time-frequency resource excluding the second time-frequency resource if the first bandwidth is less than or equal to a given threshold.
In particular, according to one aspect of the invention, it is characterized in that said target time-frequency resource is a first time-frequency resource if the first bandwidth is greater than a given threshold; or if the first bandwidth is larger than a given threshold, whether the target time-frequency resource comprises the second time-frequency resource is indicated by the first information.
The invention discloses a user equipment supporting narrow-band communication, which comprises the following modules:
-a first module: the apparatus includes a receiver configured to receive first signaling indicating a first time-frequency resource.
-a second module: for transmitting a first wireless signal on a target time-frequency resource.
Wherein the first signaling comprises scheduling information of the first wireless signal. The target time frequency resource is the first time frequency resource, or the target time frequency resource is the part of the first time frequency resource except the second time frequency resource. The bandwidth occupied by the first radio signal is a first bandwidth, whether the target time frequency resource comprises a second time frequency resource or not is related to the associated factor set, the associated factor set comprises at least one of { first bandwidth and first information }, and the first information indicates whether the target time frequency resource comprises the second time frequency resource or not.
As an embodiment, the above user equipment is characterized in that the first module is further configured to receive a second signaling. Wherein the second signaling is a high layer signaling, and the second signaling indicates a third time frequency resource. The second time frequency resource is an overlapping portion of the first time frequency resource and the third time frequency resource.
As an embodiment, the above user equipment is characterized in that the first module is further configured to receive the third signaling, and receive the second wireless signal. The third signaling comprises scheduling information of the second wireless signal, and the third signaling indicates a time-frequency resource occupied by the third wireless signal.
As an embodiment, the above user equipment is characterized in that the second module is further configured to send a third wireless signal, the third wireless signal indicating whether the second wireless signal is decoded correctly.
The invention discloses a base station device supporting narrow-band communication, which comprises the following modules:
-a first module: the first signaling is used for sending first signaling, and the first signaling indicates first time-frequency resources.
-a second module: for receiving a first wireless signal on a target time-frequency resource.
Wherein the first signaling comprises scheduling information of the first wireless signal. The target time frequency resource is the first time frequency resource, or the target time frequency resource is the part of the first time frequency resource except the second time frequency resource. The bandwidth occupied by the first wireless signal is a first bandwidth, whether the target time-frequency resource comprises a second time-frequency resource is related to an association factor set, the association factor set comprises at least one of { the first bandwidth and first information }, and the first information indicates whether the target time-frequency resource comprises the second time-frequency resource.
As an embodiment, the base station device is characterized in that the first module is further configured to send the second signaling. The second signaling is a high-level signaling, and the second signaling indicates a third time-frequency resource. The second time frequency resource is an overlapping portion of the first time frequency resource and the third time frequency resource.
As an embodiment, the base station device is characterized in that the first module is further configured to send a third signaling, and send a second wireless signal. The third signaling comprises scheduling information of the second wireless signal, and the third signaling indicates time-frequency resources occupied by the third wireless signal.
As an embodiment, the base station device is characterized in that the second module is further configured to receive a third wireless signal, and the third wireless signal indicates whether the second wireless signal is correctly decoded.
Compared with the prior art, the invention has the following technical advantages:
and judging whether the target time-frequency resource is the part of the first time-frequency resource except the second time-frequency resource or not according to the relation between the first bandwidth of the user and a given threshold value, so as to avoid the condition that UL HARQ-ACK can not be transmitted in the PUSCH due to different uplink and downlink scheduling windows.
Reduced signaling overhead for scheduling HARQ-ACK and uplink data, improved transmission efficiency
Collision of HARQ-ACK and uplink data is avoided while making full use of the resources of the physical layer data channel as much as possible.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:
fig. 1 shows a flow diagram of wireless signal uplink transmission according to an embodiment of the invention;
fig. 2 shows a flow diagram of an uplink HARQ-ACK transmission according to an embodiment of the invention;
FIG. 3 shows a schematic diagram of a first time-frequency resource and a second time-frequency resource in a given time window according to an embodiment of the invention;
FIG. 4 shows a schematic diagram of a first time-frequency resource and a second time-frequency resource in a given time window according to yet another embodiment of the invention;
fig. 5 shows a schematic diagram of a resource block occupied by a first time-frequency resource and a second time-frequency resource according to an embodiment of the invention;
fig. 6 shows a schematic diagram of resource blocks occupied by a first time-frequency resource and a second time-frequency resource according to another embodiment of the invention;
fig. 7 shows a schematic diagram of a resource block occupied by a third time-frequency resource according to an embodiment of the present invention;
fig. 8 shows a block diagram of a processing means in a UE according to an embodiment of the invention;
fig. 9 shows a block diagram of a processing means in a base station according to an embodiment of the invention;
Detailed Description
The technical solutions of the present invention will be further described in detail with reference to the accompanying drawings, and it should be noted that the features of the embodiments and examples of the present application may be arbitrarily combined with each other without conflict.
Example 1
For theBase station N1In step S101, the second signaling is sent, in step S102, the first signaling is sent, and in step S103, the first wireless signal is received on the target time-frequency resource.
For theUE U2In step S201, the second signaling is received, in step S202, the first signaling is received, and in step S203, the first wireless signal is transmitted on the target time-frequency resource.
In embodiment 1, the second signaling indicates a third time frequency resource, and the second time frequency resource is a portion where the third time frequency resource and the first time frequency resource overlap with each other. The first signaling indicates a first time-frequency resource, which includes a second time-frequency resource. The target time frequency resource comprises the time frequency resources except the second time frequency resource in the first time frequency resource. The target time frequency resource and the second time frequency resource are orthogonal (i.e. the second time frequency resource is not included), or the first signaling indicates whether the target time frequency resource includes the second time frequency resource (the first signaling indicates that the target time frequency resource includes the second time frequency resource, the target time frequency resource is the first time frequency resource). The second signaling is higher layer signaling.
As sub-embodiment 1 of embodiment 1, the first signaling is physical layer signaling and the second signaling is RRC common signaling. The bearer channel to which the first radio signal corresponds is the UL-SCH.
As sub-embodiment 2 of embodiment 1, the first signaling is physical layer signaling and the second signaling is RRC-specific signaling. The bearer channel to which the first radio signal corresponds is the UL-SCH.
As sub-embodiment 3 of embodiment 1, the first time-frequency resource includes T1 consecutive subframes in time domain, P1 consecutive subcarriers in frequency domain in each subframe, where T1 and P1 are positive integers respectively, and the second time-frequency resource includes T2 subframes in the T1 subframes in time domain, and the T2 is smaller than the T1.
As sub-embodiment 4 of embodiment 1, the first signaling includes scheduling information of the first wireless signal. The first signaling indicates that the target time frequency resource does not comprise the second time frequency resource and the first wireless signal adopts a rate matching scheme to avoid occupying the second time frequency resource, or the first signaling indicates that the target time frequency resource comprises the second time frequency resource and the target time frequency resource comprises the second time frequency resource.
Example 2
For theBase station N1In step S104, the third signaling is transmitted, in step S105, the second wireless signal is transmitted, and in step S106, the third signaling is receivedAnd receiving a third wireless signal.
For theUE U2The third signaling is received in step S204, the second wireless signal is received in step S205, and the third wireless signal is transmitted in step S206.
In embodiment 2, the third radio signal indicates whether the second radio signal is decoded correctly, and the third signaling indicates, from the third time-frequency resource, a time-frequency resource occupied by the third radio signal; or the time frequency resource occupied by the third wireless signal is the second time frequency resource. The second signaling in the present invention is a higher layer signaling and the third signaling schedules the transmission of the second wireless signal.
As sub-embodiment 1 of embodiment 2, the third wireless signal and the first wireless signal are orthogonal (i.e., non-overlapping).
As sub-embodiment 2 of embodiment 2, the third signaling is physical layer signaling.
Example 3
In embodiment 3, the first time-frequency resource occupies the entire narrow band in a given time window, and occupies the entire time window in the time domain. The second time-frequency resource occupies the whole narrow band in a given time window, and occupies a part of OFDM symbols in the given time window in time domain.
As sub-example 1 of example 3, the bandwidth of the narrow band does not exceed 180kHz.
As a sub-embodiment 2 of embodiment 3, the duration of the time window is T milliseconds, and T is a positive integer.
As a sub-embodiment 3 of embodiment 3, the first time-frequency resource occupies only one time window in the time domain.
As a sub-embodiment 4 of embodiment 3, the first time-frequency resource occupies a plurality of time windows in the time domain.
As sub-example 5 of example 3, the first bandwidth is 15kHz.
As a sub-example 6 of example 3, the first bandwidth is 3.75kHz.
As a sub-example 7 of example 3, the first bandwidth is Q times 15kHz, Q being one of {3,6 }.
Example 4
Embodiment 4 illustrates a schematic diagram of a first time-frequency resource and a second time-frequency resource in a given time window, as shown in fig. 4. In fig. 4, a bold line frame identifies the time frequency resources occupied by the first time frequency resources in a time window, and a reverse oblique line identifies the time frequency resources occupied by the second time frequency resources in a time window.
In embodiment 4, the first time-frequency resource occupies the entire narrow band in a given time window, and occupies the entire time window in the time domain. The second time frequency resource occupies part of subcarriers in the whole narrow band in a given time window, and occupies the whole given time window in the time domain.
As sub-example 1 of example 4, the bandwidth of the narrow band does not exceed 180kHz.
As a sub-embodiment 2 of embodiment 4, the duration of the time window is T milliseconds, and T is a positive integer.
As sub-embodiment 3 of embodiment 4, the first time-frequency resource occupies only one time window in the time domain.
As a sub-embodiment 4 of embodiment 4, the first time-frequency resource occupies a plurality of time windows in the time domain.
As sub-example 5 of example 4, the first bandwidth is 15kHz.
As sub-example 6 of example 4, the first bandwidth is 3.75kHz.
As a sub-example 7 of example 4, the first bandwidth is Q times 15kHz, Q being one of {3,6 }.
Example 5
In embodiment 5, a resource block occupies a time window in the time domain and a narrow band in the frequency domain. The first time frequency resources are distributed over a narrow band. The resource block occupied by the second time-frequency resource is a part of the resource block occupied by the first time-frequency resource.
As sub-embodiment 1 of embodiment 5, the RU pattern occupied by the first time-frequency resource within each resource block is the same.
As sub-embodiment 2 of embodiment 5, the first time-frequency resource occupies only a part of RUs within each resource block.
As sub-embodiment 3 of embodiment 5, the time window comprises a positive integer number of consecutive milliseconds.
Example 6
In embodiment 6, a resource block occupies a time window in the time domain and a narrow band in the frequency domain. The first time-frequency resource hops (hopping) over the first and second narrowband. The resource block occupied by the second time-frequency resource is a part of the resource block occupied by the first time-frequency resource.
As sub-embodiment 1 of embodiment 6, the RU pattern occupied by the first time-frequency resource within each resource block is the same.
As a sub-embodiment 2 of embodiment 6, the first time-frequency resources occupy only a part of RUs within each resource block.
As sub-embodiment 3 of embodiment 6, the time window comprises a positive integer number of consecutive milliseconds.
Example 7
In embodiment 7, the resource blocks occupied by the third time-frequency resource are discontinuous in the time domain, and the resource blocks occupy a narrow band in the frequency domain and a time window in the time domain.
As sub-embodiment 1 of embodiment 7, the resource blocks occupied by the third time-frequency resource periodically appear in the time domain, and the appearance period is n time windows. And n is a positive integer greater than 1.
As sub-embodiment 2 of embodiment 7, the second time-frequency resource occupies only one resource block in the third time-frequency resource.
As sub-embodiment 3 of embodiment 7, the third wireless signal in the present invention is transmitted in a third time-frequency resource, and the third signaling in the present invention indicates a resource block occupied by the first HARQ-ACK from resource blocks occupied by the third time-frequency resource. As a sub-embodiment, the time-frequency resources occupied by the third radio signal within the resource block are default (i.e. not requiring signalling configuration).
As sub-example 4 of example 7, the bandwidth of the narrow band is 180kHz.
As sub-embodiment 5 of embodiment 7, the RU occupied by the third time-frequency resource in the resource block is fixed (i.e. signaling configuration is not required).
As a sub-embodiment 6 of embodiment 7, the time window occupies M milliseconds in the time domain, where M is a positive integer.
Example 8
Embodiment 8 is a block diagram illustrating a processing apparatus in a UE, as shown in fig. 8. In fig. 8, the UE processing apparatus 200 is mainly composed of a first module 201 and a second module 202.
The first module 201 is configured to receive a first signaling. The second module 202 is configured to transmit a first wireless signal on a target time-frequency resource.
In embodiment 8, the first signaling is physical layer signaling and the second signaling is higher layer signaling. The first signaling indicates a first time-frequency resource, which includes a second time-frequency resource. The target time frequency resource comprises a time frequency resource in the first time frequency resource and out of the second time frequency resource. The target time frequency resource and the second time frequency resource are orthogonal, or the first signaling indicates whether the target time frequency resource comprises the second time frequency resource. The second signaling indicates a third time frequency resource, the second time frequency resource being a part of the third time frequency resource.
As sub-embodiment 1 of embodiment 8, the first module 201 is further configured to receive a second signaling. Wherein the second signaling is a high layer signaling, and the second signaling indicates a third time frequency resource. The second time frequency resource is an overlapping portion of the first time frequency resource and the third time frequency resource.
As sub-embodiment 2 of embodiment 8, the first module 201 is further configured to receive a third signaling, and receive a second wireless signal. The third signaling comprises scheduling information of the second wireless signal, and the third signaling indicates time-frequency resources occupied by the third wireless signal.
As sub-embodiment 3 of embodiment 8, the second module 202 is further configured to send a third wireless signal, where the third wireless signal indicates whether the second wireless signal is correctly decoded.
Example 9
Embodiment 9 is a block diagram illustrating a processing apparatus in a base station, as shown in fig. 9. In fig. 9, the base station processing apparatus 300 mainly comprises a first module 301 and a second module 302.
The first module 301 is configured to send a first signaling. The second module 302 is configured to receive a first wireless signal on a target time-frequency resource.
In embodiment 9, the first signaling is physical layer signaling and the second signaling is higher layer signaling. The first signaling indicates a first time-frequency resource, which includes a second time-frequency resource. The target time frequency resource comprises a time frequency resource in the first time frequency resource and out of the second time frequency resource. The target time frequency resource and the second time frequency resource are orthogonal, or the first signaling indicates whether the target time frequency resource comprises the second time frequency resource. The second signaling indicates a third time frequency resource, the second time frequency resource being a part of the third time frequency resource.
As sub-embodiment 1 of embodiment 9, the first module 301 is further configured to send the second signaling. Wherein the second signaling is a high layer signaling, and the second signaling indicates a third time frequency resource. The second time frequency resource is an overlapping portion of the first time frequency resource and the third time frequency resource.
As sub-embodiment 2 of embodiment 9, the first module 301 is further configured to send a third signaling and receive a second wireless signal. The third signaling comprises scheduling information of the second wireless signal, and the third signaling indicates a time-frequency resource occupied by the third wireless signal.
As sub-embodiment 3 of embodiment 9, the second module 302 is further configured to receive a third wireless signal, where the third wireless signal indicates whether the second wireless signal is correctly decoded.
It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by instructing relevant hardware through a program, and the program may be stored in a computer readable storage medium, such as a read-only memory, a hard disk or an optical disk. Alternatively, all or part of the steps of the above embodiments may be implemented by using one or more integrated circuits. Accordingly, the module units in the above embodiments may be implemented in a hardware form, or may be implemented in a form of software functional modules, and the present application is not limited to any specific form of combination of software and hardware. The UE and the terminal in the present invention include, but are not limited to, an RFID, an internet of things terminal device, an MTC (Machine Type Communication) terminal, a vehicle-mounted Communication device, a wireless sensor, an internet card, a mobile phone, a tablet computer, a notebook, and other wireless Communication devices. The base station and the base station device in the present invention include, but are not limited to, a macro cell base station, a micro cell base station, a home base station, a relay base station, and other wireless communication devices.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims (12)
1. A method in a UE supporting narrowband communication, comprising:
-step a. Receiving first signalling, the first signalling indicating first time frequency resources;
-step b. Transmitting a first radio signal on a target time-frequency resource;
wherein the first signaling comprises scheduling information of the first wireless signal; the bandwidth occupied by the first wireless signal is a first bandwidth, the target time-frequency resource is a first time-frequency resource or the target time-frequency resource is a part of the first time-frequency resource except a second time-frequency resource and is related to an associated factor set, and the associated factor set comprises at least one of { first bandwidth and first information }; if the first bandwidth is less than or equal to a given threshold, the target time frequency resource is a part of the first time frequency resource except the second time frequency resource; the first information is indicated by the first signaling, the first information indicating whether the target time-frequency resource comprises a second time-frequency resource; the position of the second time-frequency resource in the first time-frequency resource is fixed.
2. The method according to claim 1, wherein the step a further comprises the following steps A1 and A2, and the step B further comprises the following step B1:
-a step a1. Receiving a third signaling;
-a step a2. Receiving a second radio signal;
-a step b1. Transmitting a third radio signal, the third radio signal indicating whether the second radio signal is correctly decoded;
the third signaling comprises scheduling information of the second wireless signal, and the third signaling indicates time-frequency resources occupied by the third wireless signal.
3. The method according to claim 1 or 2, wherein the target time-frequency resource is a first time-frequency resource if the first bandwidth is larger than a given threshold.
4. A method in a base station supporting narrowband communications, comprising the steps of:
-step a. Transmitting a first signaling, the first signaling indicating a first time-frequency resource;
-step b. Receiving a first radio signal on a target time-frequency resource;
wherein the first signaling comprises scheduling information of the first wireless signal; the target time frequency resource is a first time frequency resource, or the target time frequency resource is a part of the first time frequency resource except a second time frequency resource; the bandwidth occupied by the first wireless signal is a first bandwidth, whether the target time frequency resource comprises a second time frequency resource or not is related to an association factor set, and the association factor set comprises at least one of { first bandwidth and first information }; if the first bandwidth is less than or equal to a given threshold, the target time frequency resource is the part of the first time frequency resource except the second time frequency resource; the first information is indicated by the first signaling, the first information indicating whether the target time-frequency resource comprises a second time-frequency resource; the position of the second time-frequency resource in the first time-frequency resource is fixed.
5. The method according to claim 4, wherein the step A further comprises the following steps A1 and A2, and the step B further comprises the following step B1:
-a step a1. Sending a third signaling;
-a step a2. Transmitting a second radio signal;
-step b1. Receiving a third radio signal, the third radio signal indicating whether the second radio signal is correctly decoded;
the third signaling comprises scheduling information of the second wireless signal, and the third signaling indicates time-frequency resources occupied by the third wireless signal.
6. The method according to claim 4 or 5, wherein the target time-frequency resource is a first time-frequency resource if the first bandwidth is larger than a given threshold.
7. A user equipment supporting narrowband communication, comprising:
-a first module: the first signaling is used for receiving first signaling, and the first signaling indicates first time-frequency resources;
-a second module: the system comprises a first wireless signal sending module, a second wireless signal sending module and a third wireless signal sending module, wherein the first wireless signal sending module is used for sending a first wireless signal on a target time-frequency resource;
wherein the first signaling comprises scheduling information of the first wireless signal; the target time frequency resource is a first time frequency resource, or the target time frequency resource is a part of the first time frequency resource except a second time frequency resource; the bandwidth occupied by the first wireless signal is a first bandwidth, whether the target time frequency resource comprises a second time frequency resource or not is related to an association factor set, and the association factor set comprises at least one of { first bandwidth and first information }; if the first bandwidth is less than or equal to a given threshold, the target time frequency resource is the part of the first time frequency resource except the second time frequency resource; the first information is indicated by the first signaling, the first information indicating whether the target time-frequency resource comprises a second time-frequency resource; the position of the second time-frequency resource in the first time-frequency resource is fixed.
8. The UE of claim 7, wherein the first module is further configured to:
receiving a third signaling;
receiving a second wireless signal;
sending a third wireless signal indicating whether the second wireless signal is correctly decoded;
the third signaling comprises scheduling information of the second wireless signal, and the third signaling indicates time-frequency resources occupied by the third wireless signal.
9. The UE of claim 7 or 8, wherein the target time-frequency resource is the first time-frequency resource if the first bandwidth is larger than a given threshold.
10. A base station device supporting narrowband communication, comprising:
-a first module: the first signaling is used for sending a first signaling, and the first signaling indicates a first time-frequency resource;
-a second module: receiving a first wireless signal on a target time-frequency resource;
wherein the first signaling comprises scheduling information of the first wireless signal; the target time frequency resource is a first time frequency resource, or the target time frequency resource is a part of the first time frequency resource except a second time frequency resource; the bandwidth occupied by the first wireless signal is a first bandwidth, whether the target time frequency resource comprises a second time frequency resource or not is related to an association factor set, and the association factor set comprises at least one of { first bandwidth and first information }; if the first bandwidth is less than or equal to a given threshold, the target time frequency resource is the part of the first time frequency resource except the second time frequency resource; the first information is indicated by the first signaling, the first information indicating whether the target time-frequency resource comprises a second time-frequency resource; the position of the second time-frequency resource in the first time-frequency resource is fixed.
11. The base station device of claim 10, wherein the first module is further configured to:
receiving a third signaling;
receiving a second wireless signal;
sending a third wireless signal indicating whether the second wireless signal is correctly decoded;
the third signaling comprises scheduling information of the second wireless signal, and the third signaling indicates time-frequency resources occupied by the third wireless signal.
12. Base station device according to claim 10 or 11, characterized in that the target time-frequency resource is a first time-frequency resource if the first bandwidth is larger than a given threshold.
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| EP3735080A4 (en) | 2017-12-29 | 2020-12-23 | Beijing Xiaomi Mobile Software Co., Ltd. | Transmitting method and device and receiving method and device |
| CN110120859B (en) * | 2018-02-05 | 2021-09-24 | 上海朗帛通信技术有限公司 | Method and device used in user equipment and base station for wireless communication |
| CN111586871B (en) * | 2018-02-13 | 2022-11-25 | 上海朗帛通信技术有限公司 | Method and device in communication node for wireless communication |
| CN110234170B (en) * | 2018-03-06 | 2020-09-01 | 上海朗帛通信技术有限公司 | Method and device used in user equipment and base station for wireless communication |
| CN110266452B (en) * | 2018-03-12 | 2020-06-30 | 上海朗帛通信技术有限公司 | Method and device used in user equipment and base station for wireless communication |
| CN111884768B (en) * | 2018-06-11 | 2024-04-09 | 荣耀终端有限公司 | Method and apparatus in a communication node for wireless communication |
| WO2020030074A1 (en) * | 2018-08-10 | 2020-02-13 | 华为技术有限公司 | Communication method and communication device |
| CN110830220B (en) | 2018-08-10 | 2021-07-16 | 华为技术有限公司 | Communication method and communication device |
| CN109714735B (en) | 2018-12-25 | 2020-07-24 | 深圳职业技术学院 | Robust data transmission method in Internet of things |
| CN112821997B (en) * | 2019-11-15 | 2022-06-17 | 上海朗帛通信技术有限公司 | Method and device used in node of wireless communication |
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| CN107027179A (en) | 2017-08-08 |
| CN110099451A (en) | 2019-08-06 |
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