CN109451590B - Communication method on unlicensed spectrum, user device and base station device - Google Patents
Communication method on unlicensed spectrum, user device and base station device Download PDFInfo
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Abstract
The invention provides a communication method and device on an unlicensed spectrum. In view of the problem that the size of eIMTA signaling causes the TDD frame structure configuration on the unlicensed spectrum to be limited, the solution of the present invention enables a given frame to which a set of TDD frame structures configured in the eIMTA signaling is applicable to cover a plurality of frequency bands in which a target UE is scheduled in the given frame. For each subframe, the scheme of the invention changes the dynamic configuration number of the TDD frame structure maximally supported by the eIMTA signaling from the configuration carrier number to the actual scheduling carrier number, thereby better adapting to the DFS technology.
Description
The present application is a divisional application of the following original applications:
application date of the original application: 20 days 03 month 2014
- -application number of the original application: 201410103740.8
The invention of the original application is named: communication method and device on unlicensed spectrum
Technical Field
The present invention relates to a scheme for communication using an Unlicensed Spectrum in a wireless communication system, and in particular, to a communication method and apparatus for an Unlicensed Spectrum (Unlicensed Spectrum) based on LTE (Long Term Evolution).
Background
An enhanced Interference Management service Adaptation (eIMTA) technology is introduced into a 3GPP (3rd Generation Partner Project) R (Release) 12, that is, for a Time Division Duplex (TDD) frame structure, a TDD frame structure can be adjusted through dynamic signaling, and possible TDD frame structures include 7 TDD frame structures of #0 to 6 defined in LTE. The 3GPP RAN (Radio Access Network ) #76 conference further defines that the dynamic signaling (eIMTA signaling) for configuring the frame structure has the following characteristics:
-load size equal to that of Format 1C
Placed in CSS (Common Search Space)
-indicating a set of TDD frame structures every 3 bits, eIMTA signaling configuring up to 5 sets of TDD frame structures
In the conventional 3GPP LTE system, data transmission can only occur on the licensed spectrum, however, with the drastic increase of traffic, especially in some urban areas, the licensed spectrum may have difficulty meeting the traffic demand. The 62-time congress of 3GPP RAN discussed a new research topic, namely the study of unlicensed spectrum synthesis (RP-132085), and the main objective was to study Non-standalone (Non-persistent) deployments with LTE over unlicensed spectrum, where communication over unlicensed spectrum is to be associated with serving cells over licensed spectrum. An intuitive method is to reuse the concept of Carrier Aggregation (CA) in the existing system as much as possible, that is, a serving cell deployed on a licensed spectrum is used as a PCC (Primary Component Carrier) and a serving cell deployed on an unlicensed spectrum is used as an SCC (Secondary Component Carrier). For unlicensed spectrum, considering its uncontrollable/predictable interference level, the UE may be configured with more carriers while selecting a part of carriers from the selectable carriers (in a given subframe) for data transmission in a DFS (dynamic Frequency Selection) manner. Further, considering the large bandwidth of the unlicensed spectrum, e.g., the unlicensed spectrum available around 500MHz only around the 5GHz carrier frequency, the number of carriers that the UE can operate on may be large (much larger than the existing maximum number of serving cells-5).
When the unlicensed spectrum supports eIMTA and the number of configured carriers (combined with the DFS technique) on the unlicensed spectrum is greater than 5, since eIMTA signaling configures 5 sets of TDD frame structures at most, multiple carriers share one set of TDD frame structure, which brings scheduling restrictions.
In order to solve the above problem, the present invention discloses a communication method and apparatus on an unlicensed spectrum.
Disclosure of Invention
The invention discloses a method in UE (User Equipment), which comprises the following steps:
-step a. receiving a higher layer signaling to obtain logical information and N sets of configuration information, the configuration information comprising a carrier index and an operating frequency band, the logical information comprising a carrier logical index and a reconfiguration index
-step b. receiving a first signaling to obtain L sets of TDD frame structures of a given frame, wherein the TDD frame structure of the corresponding location of the reconstruction index is a second TDD frame structure
Determining that a first physical resource can be used for downlink transmission, the first physical resource including, in a time domain, a downlink subframe corresponding to the second TDD frame structure in the given frame and a non-DRX (Discontinuous Reception) subframe in a special subframe, and a frequency domain resource of the first physical resource on one subframe being an operating frequency band of one set of configuration information in the N sets of configuration information.
The first signaling is physical layer signaling, L is a positive integer, the reconstruction index is a positive integer not greater than L, the operating frequency bands in the N sets of configuration information all belong to unlicensed spectrum, and N is a positive integer greater than 1.
The TDD frame structure is one of TDD UL-DL frame structures # 0-6. As an embodiment, the downlink transmission is a downlink physical layer data transmission. As another embodiment, the downlink transmission includes a downlink physical layer data transmission and a downlink physical layer signaling transmission.
If a DRX subframe exists, the DRX subframe is configured by higher layer signaling.
The frequency domain resources of the first physical resource on different subframes may be operating frequency bands of different sets of configuration information in the N sets of configuration information, respectively.
As one embodiment, the operating band includes a carrier center frequency and a carrier bandwidth. As yet another embodiment, the operating band includes a lower carrier frequency and an upper carrier frequency.
As an embodiment, the carrier logical index is a positive integer less than 8-3 bits are used to represent the carrier logical index and 0 is configured to the primary cell.
As an embodiment, the higher layer signaling is RRC (Radio Resource Control) signaling.
As an embodiment, DRX subframes do not exist, i.e.: the first physical resource includes, in the time domain, a downlink subframe and a special subframe of a corresponding second TDD frame structure in the given frame.
Specifically, according to one aspect of the present invention, the method further comprises the following steps:
-step d. receiving the second signaling determines the following information:
-a virtual index equal to the carrier logical index
-scheduling information
-a physical index, the physical index being a positive integer
-step e. processing physical signals on a given subframe in said given frame of the first physical frequency band according to said scheduling information. The processing is receiving if the given subframe belongs to a first physical resource; the processing is transmitting if the given subframe is a subframe other than the first physical resource.
The second signaling is physical layer signaling, the first physical frequency band is an operating frequency band in first configuration information, and the first configuration information is 1 set of configuration information in which a carrier index in the N sets of configuration information is equal to the physical index.
Specifically, according to the above aspect of the present invention, it is characterized in that the load size of the first signaling is a load size of format 1C on a first signaling transport carrier, the first signaling is identified by eIMTA-RNTI (Radio Network Temporary Identifier), and L is a positive integer not greater than 5. The transmission subframe of the first signaling is configured by higher layer signaling.
Specifically, according to an aspect of the present invention, the physical index is a carrier index in a set of configuration information of a transmission band including the second signaling in an operating band of the N sets of configuration information. I.e. the second signalling does not explicitly indicate the physical index but implicitly indicates with its own transport carrier.
Specifically, according to one aspect of the present invention, the logic information further includes cross-carrier information, the cross-carrier information identifies a second physical frequency band, and the second physical frequency band is a physical frequency band for second signaling transmission.
As an embodiment, the cross-carrier information is a serving cell index, and the second signaling is transmitted by a corresponding serving cell. As another embodiment, the second physical frequency band is an operating frequency band in which the carrier index in the N sets of configuration information is equal to 1 set of configuration information in the cross-carrier information.
Specifically, according to an aspect of the present invention, the step C further includes the steps of:
-step c1. detecting second signaling on an active frequency band in the N sets of configuration information in a subframe of a first physical resource.
Specifically, according to one aspect of the present invention, it is characterized in that, if the second signaling is downlink DCI, the second signaling is transmitted on the given subframe; if the second signaling is Uplink DCI, the second signaling is transmitted in a kth subframe before the given subframe, where k is a PUSCH (Physical Uplink Shared Channel) scheduling delay for the given subframe in the first TDD frame structure.
The downlink DCI refers to DCI used for scheduling downlink data, and comprises a DCI format 1/1A/1B/1C/1D/2/2A/2B/2C/2D; the uplink DCI refers to DCI for scheduling uplink transmission, and includes DCI format 0/4. Said k is shown in table 1.
TABLE 1 PUSCH scheduling delay k in TDD LTE
The invention discloses a method in a base station, which comprises the following steps:
-step a. sending high layer signaling indication logic information and N sets of configuration information, the configuration information comprising carrier index and operating band, the logic information comprising carrier logic index and reconfiguration index
-step b. sending a first signaling indicating L sets of TDD frame structures of a given frame, wherein the TDD frame structure in which the reconstruction index corresponds to a position is a second TDD frame structure
Selecting resources for downlink transmission in first physical resources, the first physical resources including, in the time domain, downlink subframes of the corresponding second TDD frame structure in the given frame and non-DRX subframes in special subframes, the frequency domain resources of the first physical resources on one subframe being the operating frequency band of one of the N sets of configuration information.
The first signaling is physical layer signaling, L is a positive integer, the reconstruction index is a positive integer not greater than L, the operating frequency bands in the N sets of configuration information all belong to unlicensed spectrum, and N is a positive integer greater than 1.
As an embodiment, the downlink transmission is a downlink physical layer data transmission. As another embodiment, the downlink transmission includes a downlink physical layer data transmission and a downlink physical layer signaling transmission.
Specifically, according to one aspect of the present invention, the method further comprises the following steps:
-step d. sending a second signaling indicating the following information:
-a virtual index equal to the carrier logical index
-scheduling information
-a physical index, the physical index being a positive integer
-step e. processing physical signals on a given subframe in said given frame of the first physical frequency band according to said scheduling information. If the given subframe belongs to a first physical resource, the processing is transmitting; the processing is receiving if the given subframe is a subframe other than the first physical resource.
The second signaling is physical layer signaling, the first physical frequency band is an operating frequency band in first configuration information, and the first configuration information is 1 set of configuration information in which a carrier index in the N sets of configuration information is equal to the physical index.
In particular, according to the above aspect of the present invention, it is characterized in that the payload size of the first signaling is the payload size of format 1C on the first signaling transport carrier, the first signaling is identified by eIMTA-RNTI, and L is a positive integer not greater than 5. The transmission subframe of the first signaling is configured by higher layer signaling.
Specifically, according to an aspect of the present invention, the physical index is a carrier index in a set of configuration information of a transmission band including the second signaling in an operating band of the N sets of configuration information. I.e. the second signalling does not explicitly indicate the physical index but implicitly indicates with its own transport carrier.
Specifically, according to one aspect of the present invention, the logic information further includes cross-carrier information, the cross-carrier information identifies a second physical frequency band, and the second physical frequency band is a physical frequency band for second signaling transmission.
As an embodiment, the cross-carrier information is a serving cell index, and the second signaling is transmitted by a corresponding serving cell. As an embodiment, the second physical frequency band is an operating frequency band in which a carrier index in the N sets of configuration information is equal to 1 set of configuration information in the cross-carrier information.
Specifically, according to one aspect of the present invention, it is characterized in that, if the second signaling is downlink DCI, the second signaling is transmitted on the given subframe; and if the second signaling is uplink DCI, transmitting the second signaling in a kth subframe before the given subframe, wherein k is PUSCH scheduling delay for the given subframe in the first TDD frame structure.
The invention discloses a user equipment, which is characterized by comprising:
a first module: the device is used for receiving high-level signaling to obtain logic information and N groups of configuration information, wherein the configuration information comprises a carrier index and an operating frequency band, and the logic information comprises a carrier logic index and a reconfiguration index
A second module: l-group TDD frame structure for receiving first signaling to obtain given frame, wherein the TDD frame structure with corresponding position of reconstruction index is the second TDD frame structure
A third module: for determining that a first physical resource is available for downlink transmission, the first physical resource includes, in a time domain, a downlink subframe corresponding to the second TDD frame structure in the given frame and a non-DRX subframe in a special subframe, and a frequency domain resource of the first physical resource on one subframe is an operating frequency band of one set of configuration information in the N sets of configuration information
A fourth module: for receiving the second signaling to determine the following information:
-a virtual index equal to the carrier logical index
-scheduling information
-a physical index, the physical index being a positive integer
A fifth module: for processing a physical signal on a given subframe in the given frame of the first physical frequency band in accordance with the scheduling information. The processing is receiving if the given subframe belongs to a first physical resource; the processing is transmitting if the given subframe is a subframe other than the first physical resource.
The first signaling is physical layer signaling, L is a positive integer, the reconstruction index is a positive integer not greater than L, the operating frequency bands in the N sets of configuration information all belong to unlicensed spectrum, and N is a positive integer greater than 1. The second signaling is physical layer signaling, the first physical frequency band is an operating frequency band in the first configuration information, and the first configuration information is 1 set of configuration information in which the carrier index in the N sets of configuration information is equal to the physical index.
As an embodiment, the third module is further configured to detect the second signaling on an operating frequency band in the N sets of configuration information in a subframe of the first physical resource.
The invention discloses a base station device, which is characterized by comprising:
a first module: the device is used for sending high-level signaling indication logic information and N groups of configuration information, the configuration information comprises a carrier index and an operating frequency band, and the logic information comprises a carrier logic index and a reconfiguration index
A second module: l sets of TDD frame structures for transmitting a first signaling indication given frame, wherein the TDD frame structure where the reconstruction index corresponds to a location is a second TDD frame structure
A third module: and selecting resources for downlink transmission in first physical resources, wherein the first physical resources comprise downlink subframes corresponding to the second TDD frame structure in the given frame and non-DRX subframes in special subframes in the given frame in a time domain, and frequency domain resources of the first physical resources on one subframe are working frequency bands of one set of configuration information in the N sets of configuration information.
A fourth module: for sending a second signaling indicating the following information:
-a virtual index equal to the carrier logical index
-scheduling information
-a physical index, the physical index being a positive integer
A fifth module: for processing a physical signal on a given subframe in the given frame of the first physical frequency band in accordance with the scheduling information. If the given subframe belongs to a first physical resource, the processing is transmitting; the processing is receiving if the given subframe is a subframe other than the first physical resource.
The first signaling is physical layer signaling, L is a positive integer, the reconstruction index is a positive integer not greater than L, the operating frequency bands in the N sets of configuration information all belong to unlicensed spectrum, and N is a positive integer greater than 1. The second signaling is physical layer signaling, the first physical frequency band is an operating frequency band in the first configuration information, and the first configuration information is 1 set of configuration information in which the carrier index in the N sets of configuration information is equal to the physical index.
Aiming at the problem that the size of eIMTA signaling causes the configuration of a TDD frame structure on an unlicensed spectrum to be limited, the invention provides a communication method and a communication device on the unlicensed spectrum, wherein a given frame applicable to a group of TDD frame structures configured in the eIMTA signaling covers a plurality of frequency bands scheduled by a target UE in the given frame. For each subframe, the scheme of the invention changes the dynamic configuration number of the TDD frame structure maximally supported by the eIMTA signaling from the configuration carrier number to the actual scheduling carrier number, thereby better adapting to the DFS technology. As an embodiment, a reconfiguration index in the logic information corresponding to the virtual index in the scheduling DCI indicates which set of TDD frame structures in eIMTA signaling is the TDD frame structure adopted by the scheduling DCI. In addition, the invention reuses the CA and eIMTA schemes in the existing LTE as much as possible, and has better compatibility.
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 for transmitting downlink data over an unlicensed spectrum according to one embodiment of the present invention;
figure 2 shows a schematic diagram of eIMTA based scheduling according to one embodiment of the present invention;
figure 3 shows a schematic diagram of second signalling according to an embodiment of the invention;
fig. 4 shows a block diagram of a processing device in a UE according to an embodiment of the invention;
fig. 5 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 S11, the higher layer signaling indication logic information and N groups of configuration information are sent; in step S12, a first signaling is sent to indicate L groups of TDD frame structures of a given frame, where the TDD frame structure of the position corresponding to the reconfiguration index is a second TDD frame structure; in step S13, a resource for downlink transmission is selected from the first physical resources.
For theUE U2In step S21, receiving higher layer signaling to obtain logic information and N sets of configuration information; in step S22, receiving the first signaling to obtain L groups of TDD frame structures of the given frame, where the TDD frame structure of the position corresponding to the reconstruction index is the second TDD frame structureStructuring; in step S23, it is determined that the first physical resource is available for downlink transmission.
In embodiment 1, the first signaling is physical layer signaling, where L is a positive integer, the reconstruction index is a positive integer not greater than L, all operating frequency bands in the N sets of configuration information belong to an unlicensed spectrum, and N is a positive integer greater than 1. The configuration information comprises a carrier index and an operating frequency band, and the logic information comprises a carrier logic index and a reconfiguration index.
The first physical resource comprises a downlink subframe corresponding to the second TDD frame structure in the given frame and a non-DRX subframe in a special subframe in a time domain, and a frequency domain resource of the first physical resource on one subframe is an operating frequency band of one set of configuration information in the N sets of configuration information. The payload size of the first signaling is the payload size of format 1C on the first signaling transport carrier, the first signaling is identified by eIMTA-RNTI, and L is a positive integer no greater than 5. The transmission subframe of the first signaling is configured by higher layer signaling.
Sub-example 1 as example 1:
for theBase station N1In step S14, a second signaling indication is sent:
-a virtual index equal to the carrier logical index
-scheduling information
-a physical index, the physical index being a positive integer;
in step S15, a physical signal is processed on a given subframe in the given frame of the first physical frequency band according to the scheduling information. If the given subframe belongs to a first physical resource, the processing is transmitting; the processing is receiving if the given subframe is a subframe other than the first physical resource.
For theUE U2In step S24, receiving the second signaling determines the following information:
-a virtual index equal to the carrier logical index
-scheduling information
-a physical index, the physical index being a positive integer;
in step S25, a physical signal is processed on a given subframe in the given frame of the first physical frequency band according to the scheduling information. The processing is receiving if the given subframe belongs to a first physical resource; the processing is transmitting if the given subframe is a subframe other than the first physical resource.
In sub-embodiment 1 of embodiment 1, the second signaling is physical layer signaling, the first physical frequency band is an operating frequency band in first configuration information, and the first configuration information is 1 set of configuration information in which a carrier index in the N sets of configuration information is equal to the physical index. The physical index is one of:
explicit indication by bits carried by the second signalling
-implicitly indicated by the second signaling, i.e. the carrier index in a set of configuration information of the transmission band comprising the second signaling in the operating band of the N sets of configuration information.
As sub-embodiment 2 of embodiment 1, in step S23, the UE U2 detects second signaling on N sets of operating frequency bands in the N sets of configuration information in a subframe of the first physical resource.
Example 2
For a base station, firstly, sending high-level signaling indication logic information and 3 groups of configuration information; then sending a first signaling to indicate that no more than 5 groups of TDD frame structures of a given frame are available, wherein the TDD frame structure at the position corresponding to the reconstruction index is a second TDD frame structure; then selecting a resource for downlink transmission in the first physical resource; then sending a second signaling indicating the following information:
-a virtual index equal to the carrier logical index
-scheduling information
-a physical index, the physical index being a positive integer;
finally, a physical signal is processed on a given subframe in the given frame of the first physical frequency band according to the scheduling information. If the given subframe belongs to a first physical resource, the processing is transmitting; the processing is receiving if the given subframe is a subframe other than the first physical resource.
For UE, firstly receiving high-level signaling to obtain logic information and 3 groups of configuration information; then receiving a first signaling to obtain no more than 5 groups of TDD frame structures of a given frame, wherein the TDD frame structure at the position corresponding to the reconstruction index is a second TDD frame structure; then determining that the first physical resource can be used for downlink transmission; then receiving a second signaling to determine the following information:
-virtual index
-scheduling information
-a physical index;
finally, a physical signal is processed on a given subframe in the given frame of the first physical frequency band according to the scheduling information. The processing is receiving if the given subframe belongs to a first physical resource; the processing is transmitting if the given subframe is a subframe other than the first physical resource.
In embodiment 2, the first signaling is physical layer signaling, the reconstruction index is a positive integer not greater than 5, and the operating frequency bands in the 3 sets of configuration information all belong to unlicensed spectrum. The configuration information comprises a carrier index and an operating frequency band, and the logic information comprises a carrier logic index and a reconfiguration index. The second signaling is physical layer signaling, the first physical frequency band is an operating frequency band in the first configuration information, and the first configuration information is 1 set of configuration information in which a carrier index in the 3 sets of configuration information is equal to the physical index. The first physical resource comprises a downlink subframe corresponding to the second TDD frame structure in the given frame and a non-DRX subframe in a special subframe in a time domain, and a frequency domain resource of the first physical resource on one subframe is an operating frequency band of one set of configuration information in the 3 sets of configuration information.
As sub-embodiment 1 of embodiment 2, the given frame is a first frame (subframes # 0-9) in fig. 2, the second TDD frame structure is a TDD UL-DL frame structure # 0, the first physical resource includes a subframe # 0/1/5/6 in a time domain, the logical information further includes cross-carrier information, the cross-carrier information identifies a second physical frequency band, and the second physical frequency band is a physical frequency band for second signaling transmission. The given subframe is a subframe (one subframe in subframe # 2/3/4/7/8/9-identified by a reverse slash) outside the first physical resource, the second signaling is uplink DCI, the second signaling is transmitted a kth subframe before the given subframe, and k is a PUSCH scheduling delay for the given subframe in the first TDD frame structure.
As sub-embodiment 2 of embodiment 2, the given frame is the second frame (sub-frames 10-19) in fig. 2, the second TDD frame structure is a TDD UL-DL frame structure # 2, and the first physical resource includes a sub-frame # 10/11/13/14/15/16/18/19 in the time domain. The given subframe is one subframe (one subframe in subframe # 10/11/13/14/15/16/18/19-identified by diagonal lines) in the first physical resource, the second signaling is downlink DCI, and the second signaling is transmitted on the given subframe. The frequency domain resource of the first physical resource on sub-frames # 10-11 is CC 3; the frequency domain resources on subframes # 13-14 are CC 2; the frequency domain resources on subframes # 15-16 are CC 1; the frequency domain resources on subframes # 18-19 are CC 3.
Example 3
The virtual index in the second signaling comprises 3 bits, and the value range is from 1 to 7. The number of bits and the value range of the physical index are configurable or predetermined. As a sub-embodiment of embodiment 3, the number of bits of the physical index is not less than log2And N, wherein N is the number of the groups of the configuration information currently configured in the unlicensed spectrum by the receiving UE of the second signaling.
As a sub-embodiment of embodiment 3, the scheduling information includes all or part of information in DCI format 2C. As another sub-embodiment of embodiment 3, the scheduling information includes all or part of information in DCI format 4.
Example 4
The receiving module 201 is configured to receive high-level signaling to obtain logic information and N sets of configuration information, where the configuration information includes a carrier index and a working frequency band, and the logic information includes a carrier logic index and a reconfiguration index; the receiving module 202 is configured to receive a first signaling to obtain L sets of TDD frame structures of a given frame, where a TDD frame structure of a position corresponding to the reconstruction index is a second TDD frame structure; the monitoring module 203 is configured to determine that a first physical resource can be used for downlink transmission, where the first physical resource includes, in a time domain, a downlink subframe corresponding to the second TDD frame structure in the given frame and a non-DRX subframe in a special subframe, and a frequency domain resource of the first physical resource on one subframe is a working frequency band of one set of configuration information in the N sets of configuration information; the receiving module 204 is configured to receive the second signaling to determine the following information:
-a virtual index equal to the carrier logical index
-scheduling information
-a physical index, the physical index being a positive integer;
the processing module 205 is configured to process a physical signal on a given subframe in the given frame of the first physical frequency band according to the scheduling information. The processing is receiving if the given subframe belongs to a first physical resource; the processing is transmitting if the given subframe is a subframe other than the first physical resource.
In embodiment 4, the first signaling is physical layer signaling, where L is a positive integer, the reconstruction index is a positive integer not greater than L, all operating bands in the N sets of configuration information belong to an unlicensed spectrum, and N is a positive integer greater than 1. The second signaling is physical layer signaling, and the first physical frequency band is an operating frequency band in the first configuration information. The first physical frequency band is an operating frequency band in first configuration information, and the first configuration information is 1 set of configuration information in which a carrier index in the N sets of configuration information is equal to the physical index. The payload size of the first signaling is the payload size of format 1C on the first signaling transport carrier, the first signaling is identified by eIMTA-RNTI, and L is a positive integer no greater than 5. The transmission subframe of the first signaling is configured by higher layer signaling.
As a sub-embodiment of embodiment 4, the monitoring module 203 is further configured to detect the second signaling on the operating frequency band in the N sets of configuration information in the subframe of the first physical resource.
Example 5
The sending module 301 is configured to send high-level signaling indication logic information and N sets of configuration information, where the configuration information includes a carrier index and a working frequency band, and the logic information includes a carrier logic index and a reconfiguration index; the sending module 302 is configured to send a first signaling to indicate L groups of TDD frame structures of a given frame, where a TDD frame structure of a position corresponding to the reconfiguration index is a second TDD frame structure; the determining module 303 is configured to select a resource for downlink transmission in first physical resources, where the first physical resources include, in a time domain, a downlink subframe corresponding to the second TDD frame structure in the given frame and a non-DRX subframe in a special subframe, and a frequency domain resource of the first physical resource on one subframe is an operating frequency band of one set of configuration information in the N sets of configuration information; the sending module 304 is configured to send the second signaling indication to:
-a virtual index equal to the carrier logical index
-scheduling information
-a physical index, the physical index being a positive integer;
the processing module 305 is configured to process a physical signal on a given subframe in the given frame of the first physical frequency band according to the scheduling information. If the given subframe belongs to a first physical resource, the processing is transmitting; the processing is receiving if the given subframe is a subframe other than the first physical resource.
The first signaling is physical layer signaling, L is a positive integer, the reconstruction index is a positive integer not greater than L, the operating frequency bands in the N sets of configuration information all belong to unlicensed spectrum, and N is a positive integer greater than 1. The second signaling is physical layer signaling, the first physical frequency band is an operating frequency band in the first configuration information, and the first configuration information is 1 set of configuration information in which the carrier index in the N sets of configuration information is equal to the physical index. The payload size of the first signaling is the payload size of format 1C on the first signaling transport carrier, the first signaling is identified by eIMTA-RNTI, and L is a positive integer no greater than 5. The transmission subframe of the first signaling is configured by higher layer signaling.
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 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 (9)
1. A user equipment, characterized in that the equipment comprises:
a first module: the device comprises a processor, a processor and a memory, wherein the processor is used for receiving high-level signaling to obtain logic information and N groups of configuration information, the configuration information comprises a carrier index and a working frequency band, and the logic information comprises a carrier logic index and a reconstruction index;
a second module: the L groups of TDD frame structures are used for receiving a first signaling to obtain a given frame, wherein the TDD frame structure of the position corresponding to the reconstruction index is a second TDD frame structure;
a third module: the method comprises the steps of determining that a first physical resource can be used for downlink transmission, wherein the first physical resource comprises a downlink subframe corresponding to a second TDD frame structure in the given frame and a non-DRX subframe in a special subframe in a time domain, and a frequency domain resource of the first physical resource on one subframe is an operating frequency band of one set of configuration information in the N sets of configuration information;
a fourth module: for receiving the second signaling to determine the following information:
-a virtual index equal to the carrier logical index;
-scheduling information;
-a physical index, the physical index being a positive integer;
a fifth module: for processing a physical signal on a given subframe in the given frame of a first physical frequency band in accordance with the scheduling information; the processing is receiving if the given subframe belongs to a first physical resource; the processing is transmitting if the given subframe is a subframe other than the first physical resource;
the first signaling is physical layer signaling, L is a positive integer, the reconstruction index is a positive integer not greater than L, the operating frequency bands in the N sets of configuration information all belong to unlicensed spectrum, and N is a positive integer greater than 1; the second signaling is physical layer signaling, the first physical frequency band is a working frequency band in first configuration information, and the first configuration information is 1 set of configuration information in which a carrier index in the N sets of configuration information is equal to the physical index; the logical information also includes cross-carrier information identifying a second physical frequency band, the second physical frequency band being a physical frequency band for a second signaling transmission.
2. The UE of claim 1, wherein the payload size of the first signaling is a payload size of Format 1C on a first signaling transport carrier, wherein the first signaling is identified by eIMTA-RNTI, and wherein L is a positive integer no greater than 5; the transmission subframe of the first signaling is configured by higher layer signaling.
3. The UE of claim 1, wherein the physical index is a carrier index in a set of configuration information of a transmission band including the second signaling in an operating band of the N sets of configuration information.
4. The UE of claim 1, wherein the fourth module detects the second signaling on an operating band in the N sets of configuration information in a subframe of the first physical resource.
5. The UE of claim 1, wherein if the second signaling is downlink DCI, the second signaling is transmitted on the given subframe; and if the second signaling is DCI used for scheduling uplink transmission, transmitting the second signaling in a kth subframe before the given subframe, wherein the k is PUSCH scheduling delay aiming at the given subframe in the first TDD frame structure.
6. A base station apparatus, characterized in that the apparatus comprises:
a first module: the device comprises a data processing unit, a data processing unit and a control unit, wherein the data processing unit is used for sending high-level signaling indication logic information and N groups of configuration information, the configuration information comprises a carrier index and a working frequency band, and the logic information comprises a carrier logic index and a reconstruction index;
a second module: the L groups of TDD frame structures are used for sending a first signaling indication given frame, wherein the TDD frame structure of the position corresponding to the reconstruction index is a second TDD frame structure;
a third module: selecting a resource for downlink transmission in first physical resources, wherein the first physical resources comprise a downlink subframe corresponding to a second TDD frame structure in the given frame and a non-DRX subframe in a special subframe in a time domain, and a frequency domain resource of the first physical resources on one subframe is a working frequency band of one set of configuration information in the N sets of configuration information;
a fourth module: for sending a second signaling indicating the following information:
-a virtual index equal to the carrier logical index;
-scheduling information;
-a physical index, the physical index being a positive integer;
a fifth module: for processing a physical signal on a given subframe in the given frame of a first physical frequency band in accordance with the scheduling information; if the given subframe belongs to a first physical resource, the processing is transmitting; the processing is receiving if the given subframe is a subframe other than a first physical resource;
the first signaling is physical layer signaling, L is a positive integer, the reconstruction index is a positive integer not greater than L, the operating frequency bands in the N sets of configuration information all belong to unlicensed spectrum, and N is a positive integer greater than 1; the second signaling is physical layer signaling, the first physical frequency band is a working frequency band in first configuration information, and the first configuration information is 1 set of configuration information in which a carrier index in the N sets of configuration information is equal to the physical index; the logical information also includes cross-carrier information identifying a second physical frequency band, the second physical frequency band being a physical frequency band for a second signaling transmission.
7. The base station apparatus of claim 6, wherein the payload size of the first signaling is the payload size of format 1C on the first signaling transport carrier, the first signaling is identified by eIMTA-RNTI, and L is a positive integer no greater than 5; the transmission subframe of the first signaling is configured by higher layer signaling.
8. The base station device according to claim 6, wherein the physical index is a carrier index in a set of configuration information of a transmission band including the second signaling in the operating band of the N sets of configuration information.
9. The base station apparatus of claim 6, wherein if the second signaling is downlink DCI, the second signaling is transmitted on the given subframe; and if the second signaling is DCI used for scheduling uplink transmission, transmitting the second signaling in a kth subframe before the given subframe, wherein the k is PUSCH scheduling delay aiming at the given subframe in the first TDD frame structure.
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| CN105517061B (en) * | 2016-01-15 | 2019-03-22 | 宇龙计算机通信科技(深圳)有限公司 | The method and device of sub-frame of uplink is indicated in a kind of unlicensed spectrum |
| CN107171773B (en) * | 2016-03-08 | 2020-06-02 | 上海无线通信研究中心 | Multi-carrier aggregation method for cellular communication system facing heterogeneous network |
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