CN105208663B - Scheduling method and device for unlicensed spectrum communication - Google Patents
Scheduling method and device for unlicensed spectrum communication Download PDFInfo
- Publication number
- CN105208663B CN105208663B CN201410255478.9A CN201410255478A CN105208663B CN 105208663 B CN105208663 B CN 105208663B CN 201410255478 A CN201410255478 A CN 201410255478A CN 105208663 B CN105208663 B CN 105208663B
- Authority
- CN
- China
- Prior art keywords
- signaling
- resource
- resource pool
- target carrier
- slices
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The invention provides a scheduling method and a scheduling device for unlicensed spectrum communication, which are embodiments, wherein a base station sends a signaling indication resource pool in a step , sends a target subframe of a second signaling scheduling target carrier in a step two, and processes physical layer data in the target subframe in a step three, wherein a resource pool comprises K groups of resource slices, the target carrier is deployed in an unlicensed spectrum, the resource slices are K1 continuous symbols in a time domain, and the base station keeps zero power in a resource pool.
Description
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
In a conventional 3GPP (3rd Generation Partner Project) LTE system, data transmission can only occur on a licensed spectrum, however, with the rapid increase of traffic volume, especially in urban areas, the licensed spectrum may be difficult to meet the traffic volume requirements, the 62-time global conference of 3GPP RAN discusses new research subjects, i.e., the research of unlicensed spectrum synthesis (RP-132085), the main purpose of which is to research Non-independent (Non-standby) deployment using LTE on unlicensed spectrum, i.e., communication on unlicensed spectrum is to be associated with serving cells on licensed spectrum, intuitive methods are to reuse the concept of CA (Carrier Aggregation) in the existing system as much as possible, i.e., serving cells deployed on licensed spectrum are used as Pcell (Primary Cell), and serving cells deployed on unlicensed spectrum are used as Cell (Secondary Cell).
For unlicensed spectrum, LTE may employ LBT (Listen Before Talk) on unlicensed spectrum to avoid interference, taking into account its uncontrollable/predictable interference level. LBT, i.e. a base station or UE (user equipment), first listens to the received power on an unlicensed spectrum before transmitting a signal, and transmits a signal on the unlicensed spectrum if it is determined from the received power that there are no interferers on the unlicensed spectrum, otherwise does not transmit a signal. Furthermore, in order to avoid interference to, for example, radar signals in an unlicensed spectrum, the LTE device may apply a DFS (Dynamic Frequency Selection) technique, that is, dynamically selecting a carrier with a channel quality meeting requirements from a plurality of candidate carriers for transmitting signals.
problems to be solved for LTE unlicensed spectrum communication are how to set a listening slot for listening to whether there is an interferer on the unlicensed spectrum intuitive idea is to set a listening slot at a fixed location (e.g. th symbol of each subframe), however this idea has the problem that if two operators 'LTE devices perform LBT on the same carriers, then each other cannot detect the other's signal.
Disclosure of Invention
The invention discloses a method in base stations, which comprises the following steps:
-sending th signaling, th signaling indicating th resource pool
-transmitting second signaling, the second signaling scheduling target sub-frames of the target carrier
-processing physical layer data in the target subframe of the target carrier according to the scheduling of the second signalling
Wherein the th resource pool includes K sets of resource tiles, the target carrier being deployed in an unlicensed spectrum, the resource tiles being below in time domain:
option K1 consecutive symbols
K1 consecutive symbols occurring periodically with a period of N subframes
The processing is sending and the second signaling is downlink scheduling signaling, or the processing is receiving and the second signaling is uplink scheduling signaling, the K1 is a positive integer, the K is a positive integer, the N is a positive integer, and the base station keeps zero power in a th resource pool.
The symbols are OFDM (Orthogonal Frequency Division Multiplexing) symbols or SC-FDMA (Single Carrier-Frequency Division Multiple Access) symbols, the subframes include 12 or 14 symbols, signaling is physical layer signaling or higher layer signaling, second signaling is physical layer signaling or higher layer signaling, the Downlink scheduling signaling is signaling for scheduling Downlink data transmission, the uplink scheduling signaling is signaling for scheduling uplink data transmission, and as embodiments, the Downlink scheduling signaling is DCI (Downlink Control Information) format {1, 1A, 1B, 1C, 1D, 2, 2A, 2B, 2C, 2D } , and as embodiments, the uplink scheduling signaling is of DCI (Downlink Control Information) format {1, 1A, 1B, 1C, 1D, 2, 2A, 2B, 2C, 2D }.
As embodiments, the K1 is 1 as yet embodiments, the K1 is 2 as embodiments, the N is an integer multiple of 10 as embodiments, the K set of resource tiles have M candidate patterns distributed over the time domain, the M candidate patterns are predetermined, the th signaling indicates an index of candidate patterns among the M candidate patterns, the M is a positive integer greater than 1 as embodiments, the physical layer data includes DMRS (Demodulation Reference Signal) for Channel estimation as yet embodiments, the physical layer data includes CSI-RS (Channel state Indicator Reference Signal) for Channel quality detection as yet embodiments, the physical layer data includes a Sounding Reference Signal (SRS Sounding Reference Signal) for Channel quality detection.
Specifically, according to aspects of the present invention, the method further comprises the following steps:
-detecting or both of { received signal power, signature sequence } in a listening slot on the target carrier.
Wherein the listening time slot belongs to th resource pool in time domain.
The signature sequence is used to identify the LTE device so that the base station can distinguish whether the interference source is an LTE device, as embodiments, the signature sequence is a ZC (Zad-Off Chu) sequence, as yet embodiments, the signature sequence is a pseudorandom sequence, as yet embodiments, the signature sequence includes ZC sequences and pseudorandom sequences, as embodiments, the listening slot includes K sets of listening resources that belong to the K sets of resource slices, respectively, in the time domain, as the sub-embodiments of the above-described embodiments, sets of the listening resources are part of the time domain resources in their corresponding resource slices in the time domain-the remaining time domain resources are used for, e.g., transmission/reception switching of radio frequency circuits.
Specifically, according to aspects of the present invention, the method further comprises the following steps:
-receiving third signaling on the target carrier, the third signaling indicating a second resource pool, the third signaling being cast signaling
Wherein the second resource pool comprises K sets of the resource slices, and at least sets of the resource slices in the th resource pool are orthogonal to the second resource pool in the time domain.
The resource pool and the second resource pool are orthogonal as embodiments.
Specifically, according to aspects of the present invention, the K is greater than 1, and at most 1 group of the resource slices is included in subframes.
Specifically, according to aspects of the invention, it is characterized in that the signaling is cast signaling transmitted on the target carrier.
The essence of the above aspect is that communication devices of other operators monitoring the target carrier can receive the th signaling and obtain the listening time slot of the base station, and thus can adjust the listening time slot of the communication device.
Specifically, according to aspects of the present invention, it is characterized in that the signaling is physical layer signaling and the resource slice is the option , or the signaling is higher layer signaling and the resource slice is the option two.
Specifically, according to aspects of the invention, the signaling includes at least of:
-ZC sequence
-pseudo-random sequence
-information bits.
As examples, the ZC sequence is PSS (Primary synchronization signal), as examples, the pseudorandom sequence is SSS (Secondary synchronization signal).
Specifically, according to aspects of the present invention, the K1 consecutive symbols belong to subframes, and the K1 consecutive symbols and a symbol including a DMRS (Demodulation Reference Signal) are orthogonal in a time domain.
I.e., the K1 consecutive symbols are symbols other than DMRS in subframes.
The above aspects avoid the DMRS modification and ensure compatibility with existing systems.
The invention discloses a method in base stations, which comprises the following steps:
-receiving th signaling on the target carrier, th signaling indicating th resource pool
Wherein the th signaling is th signaling, the th resource pool includes K sets of resource tiles, the target carrier is deployed in the unlicensed spectrum, the resource tiles are below in the time domain:
option K1 consecutive symbols
K1 consecutive symbols occurring periodically with a period of N subframes.
Specifically, according to aspects of the present invention, the method further comprises the following steps:
-sending communication signals in th resource pool.
As another embodiments, the communication signal is a signal with non-zero power determined by the base station itself, i.e., the transmitting base station, which only notifies th signaling, that there is an interference source on the target carrier through power.
The invention discloses a method in kinds of UE, which comprises the following steps:
-receiving th signaling, th signaling indicating th resource pool
-receiving a second signaling, the second signaling scheduling a target subframe of a target carrier
-operating physical layer data in the target subframe of the target carrier according to the scheduling of the second signalling
Wherein the th resource pool includes K sets of resource tiles, the target carrier being deployed in an unlicensed spectrum, the resource tiles being below in time domain:
option K1 consecutive symbols
K1 consecutive symbols occurring periodically with a period of N subframes
The operation is receiving and the second signaling is downlink scheduling signaling, or the operation is sending and the second signaling is uplink scheduling signaling, the K1 is a positive integer, the K is a positive integer, the N is a positive integer, and the UE keeps zero power in a th resource pool.
Specifically, according to aspects of the present invention, the method further comprises the following steps:
-detecting or both of { received signal power, signature sequence } in a listening slot on the target carrier.
Wherein the listening time slot belongs to th resource pool in time domain.
Specifically, according to aspects of the present invention, the K is greater than 1, and at most 1 group of the resource slices is included in subframes.
Specifically, according to aspects of the invention, it is characterized in that the signaling is cast signaling transmitted on the target carrier.
Specifically, according to aspects of the present invention, it is characterized in that the signaling is physical layer signaling and the resource slice is the option , or the signaling is higher layer signaling and the resource slice is the option two.
Specifically, according to aspects of the invention, the signaling includes at least of:
-ZC sequence
-pseudo-random sequence
-information bits
Specifically, aspects of the invention are characterized in that the K1 consecutive symbols belong to subframes, and the K1 consecutive symbols and the symbols comprising the DMRS are orthogonal in time domain.
The invention discloses kinds of base station equipment, which is characterized by comprising the following components:
a module for sending a th signaling, the th signaling indicating a th resource pool
A second module: for transmitting second signalling, which second signalling schedules target sub-frames of a target carrier
A third module: for processing physical layer data in the target subframe of the target carrier according to scheduling of a second signaling
A fourth module for detecting or two of { received signal power, signature sequence } in a listening slot on the target carrier
Wherein the th resource pool includes K sets of resource tiles, the target carrier being deployed in an unlicensed spectrum, the resource tiles being below in time domain:
option K1 consecutive symbols
K1 consecutive symbols occurring periodically with a period of N subframes
The processing is sending and the second signaling is downlink scheduling signaling, or the processing is receiving and the second signaling is uplink scheduling signaling, the K1 is a positive integer, the K is a positive integer, the N is a positive integer, the base station keeps zero power in the th resource pool, and the listening time slot belongs to the th resource pool in the time domain.
As embodiments, the above apparatus further comprises:
a fifth module for receiving a third signaling on the target carrier, the third signaling indicating a second resource pool, the third signaling being cast signaling
Wherein the second resource pool comprises K sets of the resource slices, and at least sets of the resource slices in the th resource pool are orthogonal to the second resource pool in the time domain.
The invention discloses kinds of base station equipment, which is characterized by comprising the following components:
a module for receiving a th signaling on a target carrier, the th signaling indicating a th resource pool
A second module for sending communication signals in a th resource pool
Wherein the th signaling is th signaling, the th resource pool includes K sets of resource tiles, the target carrier is deployed in the unlicensed spectrum, the resource tiles are below in the time domain:
option K1 consecutive symbols
K1 consecutive symbols occurring periodically with a period of N subframes.
The invention discloses kinds of user equipment, which is characterized by comprising the following components:
a module for receiving a th signaling, the th signaling indicating a th resource pool
A second module: for receiving a second signaling, the second signaling scheduling a target sub-frame of a target carrier
A third module: for operating physical layer data in the target subframe of the target carrier according to scheduling of second signaling
Wherein the th resource pool includes K sets of resource tiles, the target carrier being deployed in an unlicensed spectrum, the resource tiles being below in time domain:
option K1 consecutive symbols
K1 consecutive symbols occurring periodically with a period of N subframes
The operation is receiving and the second signaling is downlink scheduling signaling, or the operation is sending and the second signaling is uplink scheduling signaling, the K1 is a positive integer, the K is a positive integer, the N is a positive integer, and the UE keeps zero power in a th resource pool.
As embodiments, the above apparatus is characterized by further comprising:
a fourth module for detecting or two of { received signal power, signature sequence } in a listening slot on the target carrier.
Wherein the listening time slot belongs to th resource pool in time domain.
The invention provides scheduling methods and devices for unlicensed spectrum communication, aiming at the problem of setting of interception Time slots for intercepting interference sources in LTE unlicensed spectrum communication.
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 illustrates a flow diagram for transmitting downstream physical layer data in accordance with embodiments of the present invention;
FIG. 2 illustrates a flow diagram for transmitting upstream physical layer data according to embodiments of the present invention;
fig. 3 shows a flow chart of communications signals transmitted by base stations according to embodiments of the invention;
FIG. 4 shows a distribution diagram of the resource pool and the second resource pool in accordance with embodiments of the present invention;
FIG. 5 shows a schematic diagram where resource tiles are periodically occurring symbols in accordance with embodiments of the invention;
FIG. 6 shows a schematic representation of resource slices within a physical layer data transfer subframe in accordance with embodiments of the invention;
FIG. 7 shows a schematic diagram of symbols that can be set as resource tiles in accordance with embodiments of the invention;
fig. 8 shows a block diagram of a processing means in a base station according to embodiments of the invention;
fig. 9 shows a block diagram of a processing means in a UE according to embodiments of the invention;
fig. 10 shows a block diagram of a processing means in a base station according to yet another embodiments of the invention;
Detailed Description
The technical solution of the present invention will be described in further detail with reference to the accompanying drawings, and it should be noted that the features of the embodiments and examples of the present application can be arbitrarily combined with each other without conflict.
Example 1
For the base station N1, in step S11, th signaling is transmitted, the th signaling indicates th resource pool, in step S12, second signaling is transmitted, the second signaling schedules a target subframe of a target carrier, and in step S13, physical layer data is transmitted in the target subframe of the target carrier according to the scheduling of the second signaling.
For the UE U2, th signaling is received in step S21, the th signaling indicates th resource pool, a second signaling is received in step S22, a target subframe of a target carrier is scheduled by the second signaling, and physical layer data is received in the target subframe of the target carrier according to the scheduling of the second signaling in step S23.
In embodiment 1, the th resource pool includes K sets of resource slices, the target carrier is deployed in the unlicensed spectrum, the resource slices are below in the time domain:
option K1 consecutive symbols
K1 consecutive symbols occurring periodically with a period of N subframes
And K1 continuous symbols in the target subframe belong to groups of the resource slices of a resource pool, and the physical layer data occupies the symbols except the symbols belonging to the resource pool in the subframe, wherein the second signaling is downlink scheduling signaling, K1 is a positive integer, K is a positive integer, N is a positive integer, and both the base station N1 and the UE U2 keep zero power in the resource pool.
As sub-embodiment 1 of embodiment 1, in step S10, the base station N1 receives a third signaling sent by the base station N0, where the third signaling indicates a second resource pool, where the second resource pool includes K sets of the resource slices, and at least sets of the resource slices in the th resource pool are orthogonal to the second resource pool in the time domain.
As sub-embodiment 2 of embodiment 1, in step S14, a base station N1 detects received signal power in a listening slot on the target carrier, wherein the listening slot belongs to the th resource pool in the time domain, the base station N1 determines that an interferer is present on the target carrier if the received signal power is greater than a certain threshold, the base station N1 determines that an interferer is not present on the target carrier if the received signal power is not greater than the certain threshold, the certain threshold is predetermined or configurable.
As sub-embodiment 3 of embodiment 1, in step S14, the base station N1 detects the received signal power and signature sequence in the listening slot on the target carrier, where the listening slot belongs to the th resource pool in the time domain.
For the received signal y, the base station N1 first detects whether a signature sequence exists in the listening slot according to Coherent Detection (Coherent Detection) or Non-Coherent Detection (Non-Coherent Detection):
if no signature sequence is detected, the base station N1 is detecting the received signal power yy2If y is not zero2Above a certain threshold, the base station N1 determines that there is an interference source of a non-LTE device on the target carrier, if y2Not greater than the particular threshold, base station N1 determines that no interferer is present on the target carrier.
If the signature sequence s is detected, the base station N1 determines that an interference source of the LTE system exists on the target carrier, and the base station N1 detects residual power y Y in steps2-|s|2If the remaining power is greater than a certain threshold, the base station N1 determines that an interferer other than an LTE device is present on the target carrier, and if the remaining power is not greater than the certain threshold, the base station N1 determines that an interferer is not present on the target carrier.
The particular threshold is predetermined or configurable.
As sub-embodiment 4 of embodiment 1, the th signaling includes at least of:
-ZC sequence
-pseudo-random sequence
-information bits.
Example 2
For the base station N3, in step S31, a th signaling is transmitted, a th signaling indicates a th resource pool, in step S32, a second signaling is transmitted, a target subframe of a target carrier is scheduled by the second signaling, and in step S33, physical layer data is received in the target subframe of the target carrier according to the scheduling of the second signaling.
For the UE U4, in step S41, th signaling is received, the th signaling indicates th resource pool, in step S42, second signaling is received, the second signaling schedules a target subframe of a target carrier, and in step S43, physical layer data is transmitted in the target subframe of the target carrier according to the scheduling of the second signaling.
In embodiment 2, the th resource pool includes K sets of resource slices, the target carrier is deployed in the unlicensed spectrum, the resource slices are below in time domain:
option K1 consecutive symbols
K1 consecutive symbols occurring periodically with a period of N subframes
K1 continuous symbols in the target subframe belong to resource slices of an resource pool, and the physical layer data occupies the symbols except the symbols belonging to a resource pool in the subframe, wherein the second signaling is uplink scheduling signaling, the K1 is a positive integer, the K is a positive integer, the N is a positive integer, and both the base station N3 and the UE U4 keep zero power in a resource pool.
As sub-embodiment 1 of embodiment 2, the K is greater than 1, and subframes include at most 1 group of the resource slices.
As sub-embodiment 2 of embodiment 2, the th signaling is cast signaling transmitted on the target carrier.
As sub-embodiment 3 of embodiment 2, the th signaling is physical layer signaling and the resource slice is the option .
As sub-embodiment 4 of embodiment 2, the th signaling is a higher layer signaling and the resource slice is the option two.
Example 3
For the base station N5, in step S51, th signaling is sent, th signaling indicates th resource pool, and in step S52, or two of { received signal power, signature sequence } are detected in the listening slot on the target carrier.
For the base station N6, in step S61, th signaling is received on the target carrier, the th signaling indicating th resource pool, and in step S62, communication signals are transmitted in th resource pool.
In embodiment 3, the th signaling is th signaling, the th resource pool includes K sets of resource slices, the target carrier is deployed in the unlicensed spectrum, the resource slices are below in the time domain:
option K1 consecutive symbols
K1 consecutive symbols occurring periodically with a period of N subframes
The K1 is a positive integer, the K is a positive integer, the N is a positive integer, the base station maintains zero power in the th resource pool, the listening time slot belongs to the th resource pool in the time domain.
As sub-embodiment 1 of embodiment 3, the communication signal is physical layer data, and the base station N5 detects the received signal power to determine whether there is an interference source in step S52.
As sub-embodiment 2 of embodiment 3, the communication signal is a signature sequence, and the base station N5 detects the signature sequence in step S52 to determine whether there is an LTE system interferer, and detects the received signal power to determine whether there is a non-LTE system interferer.
Example 4
Example 4 illustrates a distribution diagram of th resource pool and a second resource pool, as shown in fig. 4. in fig. 4, the slashed square is a resource slice of th resource pool, and the reverse slashed square is a resource slice of the second resource pool.
For the base station, first receive a third signaling on the target carrier, the third signaling indicating a second resource pool, the third signaling being physical layer broadcast signaling, and then send a th signaling, the th signaling indicating a th resource pool.
The resource pool comprises K groups of resource slices, a configuration period in figure 4 is a configuration time window for configuring the resource pool by th signaling and third signaling, the configuration time window comprises L subframes, L is a positive integer greater than K, the target carrier is deployed in an unlicensed spectrum, the resource slices are K1 continuous symbols in a time domain, th signaling is physical layer broadcast signaling, K1 is a positive integer, K is a positive integer, the base station keeps zero power in a th resource pool, K resource slices of an th resource pool are respectively marked by 1-K slash squares in figure 4, and K resource slices of a second resource pool are respectively marked by 1-K slash squares in figure 4, wherein the squares marked by 3 belong to both a th resource pool and the second resource pool.
Example 5
Example 5 illustrates a resource slice is a schematic diagram of a periodically occurring symbol, as shown in fig. 5. in fig. 5, the slashed squares are K1 consecutive symbols of the th resource pool.
The th resource pool comprises K groups of resource slices, the resource slices are K1 continuous symbols which appear periodically in time domain, the appearance period is N subframes, in the figure 5, oblique line squares are K1 continuous symbols, and the oblique line squares which mark the same number (1-K) form groups of the resource slices.
Example 6
For a base station, first th signaling is sent, the th signaling indicates the th resource pool, then second signaling is sent, the second signaling schedules subframe 1 of a target carrier, then physical layer data is processed in subframe 1 for a UE, first th signaling is received, the th signaling indicates the th resource pool, then second signaling is received, the second signaling schedules subframe 1 of the target carrier, and then physical layer data is operated in subframe 1.
In embodiment 6, the th resource pool includes K sets of resource slices, the target carrier is deployed in the unlicensed spectrum, the resource slices are below in time domain:
option K1 consecutive symbols
K1 consecutive symbols occurring periodically with a period of N subframes
The resource slice in the group of the resource pool including the K1 continuous symbols (as shown by blank squares) in subframe 1, the physical layer data occupies the symbols (as shown by diagonal squares in subframe 1) in subframe 1 that belong to the resource pool, the processing is transmission and the operation is reception and the second signaling is downlink scheduling signaling, or the processing is reception and the operation is transmission and the second signaling is uplink scheduling signaling, the K1 is a positive integer, the K is a positive integer, the N is a positive integer, and the base station and the UE maintain zero power in the resource pool.
As sub-example 1 of example 6, the K1 is 1 or 2.
As sub-embodiment 2 of embodiment 6, compared with the subframes (for example, subframe 2 and subframe 3) that do not include the symbol in the -th resource pool, the physical layer data in subframe 1 adopts a mapping manner of puncturing (punture) or Rate Matching (Rate Matching).
As sub-embodiment 3 of embodiment 6, subframe 2 and subframe 3 in fig. 6 are also used for transmitting physical layer data (hatched squares), so the present invention provides mechanisms, that is, LTE devices can also detect an interference source among multiple consecutive subframes for transmitting data, and further perform DFS operation in time.
Example 7
As shown in fig. 7, symbols 0, 1, 2, 3, 4, 7, 8, 9, 10, 11 in subframes can be set as symbols of the resource slice.
Example 8
The sending module 202 is configured to send th signaling, the th signaling indicates a th resource pool, the sending module 203 is configured to send second signaling, the second signaling schedules a target subframe of a target carrier, the processing module 204 is configured to process physical layer data in the target subframe of the target carrier according to the scheduling of the second signaling, and the monitoring module 205 is configured to detect or two of { received signal power, signature sequence } in a listening slot on the target carrier.
In embodiment 8, the th resource pool includes K sets of resource slices, the target carrier is deployed in the unlicensed spectrum, the resource slices are below in time domain:
option K1 consecutive symbols
K1 consecutive symbols occurring periodically with a period of N subframes
The target subframe comprises groups of resource slices with K1 continuous symbols belonging to a th resource pool, and the physical layer data occupies the symbols except the symbols belonging to a th resource pool in the subframe, wherein the processing is sending and the second signaling is downlink scheduling signaling, or the processing is receiving and the second signaling is uplink scheduling signaling, the K1 is a positive integer, the K is a positive integer larger than 1, the N is a positive integer, the listening time slot belongs to a th resource pool in a time domain, and the base station keeps zero power in the th resource pool.
As sub-embodiment 1 of embodiment 8, the processing apparatus 200 further includes a receiving module 201 configured to receive a third signaling on the target carrier, where the third signaling indicates a second resource pool, and the third signaling is cast signaling, where the second resource pool includes K sets of the resource slices, and at least sets of the resource slices in the resource pool are orthogonal to the second resource pool in a time domain.
As sub-embodiment 2 of embodiment 8, said K1 is equal to 1 or 2.
As sub-embodiment 3 of embodiment 8, the th signaling is a ZC sequence or a pseudo-random sequence.
Example 9
The receiving module 301 is configured to receive th signaling, the th signaling indicates a th resource pool, the receiving module 302 is configured to receive second signaling, the second signaling schedules a target subframe of a target carrier, and the operating module 303 is configured to operate physical layer data in the target subframe of the target carrier according to scheduling of the second signaling.
In embodiment 9, the th resource pool includes K sets of resource slices, the target carrier is deployed in the unlicensed spectrum, the resource slices are below in time domain:
option K1 consecutive symbols
K1 consecutive symbols occurring periodically with a period of N subframes
The operation is receiving and the second signaling is downlink scheduling signaling, or the operation is sending and the second signaling is uplink scheduling signaling, the K1 is a positive integer, the K is a positive integer greater than 1, the N is a positive integer, and the UE keeps zero power in a th resource pool.
As sub-example 1 of example 9, the K1 is equal to 1 or 2.
As sub-embodiment 2 of embodiment 9, the th signaling is physical layer signaling and the resource slice is the option .
Example 10
The receiving module 401 is configured to receive th signaling on a target carrier, the th signaling indicating a th resource pool, and the transmitting module 402 is configured to transmit a communication signal in the th resource pool.
Wherein the th signaling is th signaling, the th resource pool includes K sets of resource tiles, the target carrier is deployed in the unlicensed spectrum, the resource tiles are below in the time domain:
option K1 consecutive symbols
K1 consecutive symbols occurring periodically with a period of N subframes.
The communication signals are of { physical layer data, signature sequence, self-determined non-zero power signal }.
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 instructions associated with hardware, 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.
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 (18)
1, method in a base station, comprising the steps of:
-sending th signaling, th signaling indicating th resource pool;
-transmitting second signaling, the second signaling scheduling a target subframe of a target carrier;
-processing physical layer data in the target subframe of the target carrier according to a scheduling of a second signaling;
the th resource pool comprises K groups of resource slices, the target carrier is deployed in an unlicensed spectrum, and the resource slices are :
-option . K1 consecutive symbols;
k1 consecutive symbols occurring periodically, with a period of N subframes;
the target subframe comprises groups of resource slices of resource pools, K1 continuous symbols in the target subframe belong to the resource slices, the physical layer data occupy the symbols in the subframe except the symbols belonging to the resource pools, the processing is sending and the second signaling is downlink scheduling signaling, or the processing is receiving and the second signaling is uplink scheduling signaling, K1 is a positive integer, K is a positive integer, N is a positive integer, and the base station keeps zero power in a resource pool.
2. The method of claim 1, further comprising the steps of:
-detecting or both of { received signal power, signature sequence } in a listening slot on the target carrier;
wherein the listening time slot belongs to th resource pool in time domain.
3. The method of claim 1, further comprising the steps of:
-receiving third signaling on the target carrier, the third signaling indicating a second resource pool, the third signaling being cast signaling;
wherein the second resource pool comprises K sets of the resource slices, and at least sets of the resource slices in the th resource pool are orthogonal to the second resource pool in the time domain.
4. The method of claim 1, wherein the K is greater than 1, and wherein subframes include at most 1 group of the resource slices.
5. The method of claim 1, wherein the th signaling is th broadcast signaling transmitted on the target carrier.
6. The method of claim 1, wherein the th signaling is physical layer signaling and the resource slice is the option , or wherein the th signaling is higher layer signaling and the resource slice is the option two.
7. The method of claim 1, wherein the th signaling comprises at least :
-a ZC sequence;
-a pseudo-random sequence;
-information bits.
8. The method of claim 1, wherein the K1 consecutive symbols belong to subframes, and wherein the K1 consecutive symbols and the symbols comprising the DMRS are orthogonal in a time domain.
Method in a UE of the kind 9, , comprising the steps of:
-receiving th signaling, th signaling indicating th resource pool;
-receiving second signaling, the second signaling scheduling a target subframe of a target carrier;
-operating physical layer data in the target subframe of the target carrier according to the scheduling of second signalling;
the th resource pool comprises K groups of resource slices, the target carrier is deployed in an unlicensed spectrum, and the resource slices are :
-option . K1 consecutive symbols;
k1 consecutive symbols occurring periodically, with a period of N subframes;
the method comprises the steps that K1 continuous symbols in a target subframe belong to groups of resource slices of a resource pool, the physical layer data occupy symbols except symbols belonging to an resource pool in the subframe, the operation is receiving and the second signaling is downlink scheduling signaling, or the operation is sending and the second signaling is uplink scheduling signaling, K1 is a positive integer, K is a positive integer, N is a positive integer, and the UE keeps zero power in a resource pool.
10. The method of claim 9, further comprising the steps of:
-detecting or both of { received signal power, signature sequence } in a listening slot on the target carrier;
wherein the listening time slot belongs to th resource pool in time domain.
11. The method of claim 9, wherein the K is greater than 1, and wherein subframes include at most 1 group of the resource slices.
12. The method of claim 9, wherein the th signaling is th broadcast signaling transmitted on the target carrier.
13. The method of claim 9, wherein the th signaling is physical layer signaling and the resource slice is the option , or wherein the th signaling is higher layer signaling and the resource slice is the option two.
14. The method of claim 9, wherein the th signaling comprises at least :
-a ZC sequence;
-a pseudo-random sequence;
-information bits.
15. The method of claim 9, wherein the K1 consecutive symbols belong to subframes, and wherein the K1 consecutive symbols and the symbols comprising the DMRS are orthogonal in time domain.
16, A base station device, comprising:
a module for sending th signaling, the th signaling indicating a th resource pool;
a second module: the target subframe is used for sending a second signaling, and the second signaling schedules a target carrier;
a third module: processing physical layer data in the target subframe of the target carrier according to scheduling of a second signaling;
a fourth module, configured to detect or two of { received signal power, signature sequence } in the listening slot on the target carrier;
the th resource pool comprises K groups of resource slices, the target carrier is deployed in an unlicensed spectrum, and the resource slices are :
-option . K1 consecutive symbols;
k1 consecutive symbols occurring periodically, with a period of N subframes;
the method comprises the steps that K1 continuous symbols in a target subframe belong to groups of resource slices of a resource pool, physical layer data occupy the subframe except symbols belonging to a resource pool, the processing is sending and second signaling is downlink scheduling signaling, or the processing is receiving and second signaling is uplink scheduling signaling, K1 is a positive integer, K is a positive integer, N is a positive integer, a listening time slot belongs to a resource pool in a time domain, and the base station equipment keeps zero power in an resource pool.
17. The apparatus of claim 16, further comprising:
a fifth module, configured to receive a third signaling on the target carrier, where the third signaling indicates a second resource pool, and the third signaling is broadcast signaling;
wherein the second resource pool comprises K sets of the resource slices, and at least sets of the resource slices in the th resource pool are orthogonal to the second resource pool in the time domain.
18 a user device of the type , the device comprising:
a module for receiving th signaling, the th signaling indicating a th resource pool;
a second module: the second signaling is used for receiving the second signaling, and the second signaling schedules a target subframe of a target carrier;
a third module: for operating physical layer data in the target subframe of the target carrier according to the scheduling of the second signaling;
a fourth module, configured to detect or two of { received signal power, signature sequence } in the listening slot on the target carrier;
the th resource pool comprises K groups of resource slices, the target carrier is deployed in an unlicensed spectrum, and the resource slices are :
-option . K1 consecutive symbols;
k1 consecutive symbols occurring periodically, with a period of N subframes;
the method comprises the steps that K1 continuous symbols in a target subframe belong to groups of resource slices of a resource pool, physical layer data occupy the subframe except symbols belonging to a resource pool, the operation is sending and second signaling is uplink scheduling signaling, or the operation is receiving and second signaling is downlink scheduling signaling, K1 is a positive integer, K is a positive integer, N is a positive integer, a listening time slot belongs to a resource pool in a time domain, and the user equipment keeps zero power in an resource pool.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910721311.XA CN110505708B (en) | 2014-06-10 | 2014-06-10 | Method and device for scheduling unlicensed spectrum communication |
| CN201410255478.9A CN105208663B (en) | 2014-06-10 | 2014-06-10 | Scheduling method and device for unlicensed spectrum communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410255478.9A CN105208663B (en) | 2014-06-10 | 2014-06-10 | Scheduling method and device for unlicensed spectrum communication |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910721311.XA Division CN110505708B (en) | 2014-06-10 | 2014-06-10 | Method and device for scheduling unlicensed spectrum communication |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105208663A CN105208663A (en) | 2015-12-30 |
| CN105208663B true CN105208663B (en) | 2020-01-31 |
Family
ID=54956000
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410255478.9A Active CN105208663B (en) | 2014-06-10 | 2014-06-10 | Scheduling method and device for unlicensed spectrum communication |
| CN201910721311.XA Active CN110505708B (en) | 2014-06-10 | 2014-06-10 | Method and device for scheduling unlicensed spectrum communication |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910721311.XA Active CN110505708B (en) | 2014-06-10 | 2014-06-10 | Method and device for scheduling unlicensed spectrum communication |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN105208663B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102574506B1 (en) | 2016-01-29 | 2023-09-05 | 한국전자통신연구원 | Method and apparatus for transmitting signal in unlicensed band communication system, method and apparatus for uplink scheduling, and method and apparatus for transmitting information about channel status measurement period |
| CN109076603B (en) * | 2016-03-28 | 2022-08-19 | 英特尔公司 | Listen before talk for uplink transmissions |
| EP3823409B1 (en) | 2016-05-20 | 2023-08-09 | Telefonaktiebolaget LM Ericsson (publ) | Scheduling multiple subframes in unlicensed spectrum |
| CN110636622B (en) * | 2016-06-06 | 2022-12-27 | 上海朗帛通信技术有限公司 | Method and device in wireless communication |
| WO2017222280A1 (en) * | 2016-06-21 | 2017-12-28 | Samsung Electronics Co., Ltd. | System and method of reducing interruptions for vehicle to vehicle communication |
| CN107682931A (en) * | 2016-08-09 | 2018-02-09 | 深圳市金立通信设备有限公司 | A kind of data communications method and device |
| CN109952727B (en) * | 2017-03-06 | 2021-11-23 | 上海朗帛通信技术有限公司 | Method and device used in user equipment and base station for dynamic scheduling |
| CN108882303B (en) * | 2017-05-08 | 2020-09-25 | 大唐移动通信设备有限公司 | Interference avoidance method and device |
| CN107659996B (en) * | 2017-08-30 | 2021-05-18 | 宇龙计算机通信科技(深圳)有限公司 | Channel access method and equipment |
| CN115915474A (en) * | 2021-09-30 | 2023-04-04 | 华为技术有限公司 | Data transmission method, terminal device and system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101917729A (en) * | 2010-08-13 | 2010-12-15 | 中兴通讯股份有限公司 | Time domain interference indication method and time domain resource interference determination method and base stations thereof |
| CN101990231A (en) * | 2009-07-31 | 2011-03-23 | 华为技术有限公司 | Method, system, central node and sensing node for determining idle frequency band |
| CN102960008A (en) * | 2010-06-24 | 2013-03-06 | 高通股份有限公司 | Method and apparatus for using and/or implementing control channels in white space |
| WO2013131267A1 (en) * | 2012-03-08 | 2013-09-12 | 5Renesas Mobile Corporation | Spectrum sensing and cross-carrier scheduling |
| CN103517283A (en) * | 2012-06-29 | 2014-01-15 | 电信科学技术研究院 | Frequency spectrum sensing method and device of cognitive radio system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69940301D1 (en) * | 1999-03-15 | 2009-03-05 | Motorola Inc | Time distribution of communication resources in cellular communication systems |
| AU2010298845B8 (en) * | 2009-09-27 | 2014-02-27 | Lg Electronics Inc. | Method and apparatus for transmitting reference signal in wireless communication system |
| CN103188811B (en) * | 2011-12-31 | 2016-08-10 | 华为技术有限公司 | The transmission method of sub-frame information, subscriber equipment and base station |
| CN103428871B (en) * | 2012-05-25 | 2018-05-18 | 中兴通讯股份有限公司 | A kind of disturbance coordination method and system |
-
2014
- 2014-06-10 CN CN201410255478.9A patent/CN105208663B/en active Active
- 2014-06-10 CN CN201910721311.XA patent/CN110505708B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101990231A (en) * | 2009-07-31 | 2011-03-23 | 华为技术有限公司 | Method, system, central node and sensing node for determining idle frequency band |
| CN102960008A (en) * | 2010-06-24 | 2013-03-06 | 高通股份有限公司 | Method and apparatus for using and/or implementing control channels in white space |
| CN101917729A (en) * | 2010-08-13 | 2010-12-15 | 中兴通讯股份有限公司 | Time domain interference indication method and time domain resource interference determination method and base stations thereof |
| WO2013131267A1 (en) * | 2012-03-08 | 2013-09-12 | 5Renesas Mobile Corporation | Spectrum sensing and cross-carrier scheduling |
| CN103517283A (en) * | 2012-06-29 | 2014-01-15 | 电信科学技术研究院 | Frequency spectrum sensing method and device of cognitive radio system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110505708B (en) | 2023-04-07 |
| CN110505708A (en) | 2019-11-26 |
| CN105208663A (en) | 2015-12-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105208663B (en) | Scheduling method and device for unlicensed spectrum communication | |
| US11399356B2 (en) | Synchronization signal block (SSB)-based positioning measurement signals | |
| US10805863B2 (en) | Method and apparatus for generating and using reference signal for broadcast channel for radio system | |
| EP3096481B1 (en) | Signal transmission method and apparatus | |
| CN107852308B (en) | Method and apparatus for operating machine type device in wireless communication system | |
| CN110072290B (en) | Communication method and device of LAA system | |
| US10045316B2 (en) | Method and device for sending synchronization signal and method and device for synchronization between base stations | |
| CN112073167B (en) | Transmission method, receiving method, base station and user equipment of synchronous signal block | |
| US20170201361A1 (en) | Method and device for transmitting reference signal, method and device for receiving the same | |
| CN106900175B (en) | User equipment, base station and data channel transmitting and receiving method | |
| CN108632984B (en) | Configuration and receiving method and device of common control channel | |
| KR20110037430A (en) | Method for transmitting signal in wireless communication system and transmitter thereof, receiver | |
| JP7177798B2 (en) | Methods and devices for synchronization | |
| CN108810934B (en) | Method for transmitting and receiving common control information, base station, terminal and storage medium | |
| CN110166216B (en) | LAA resource allocation method and device | |
| CN105376849B (en) | LAA method and device in cellular communication | |
| CN110166393A (en) | The sending, receiving method and device of synchronization signal block | |
| CN110149188A (en) | Sending and receiving method, base station, terminal, the readable medium of reference signal | |
| CN108063654A (en) | Communication means and terminal, transfer point | |
| CN103546259A (en) | Transmission signal transmitting and receiving method, terminal and base station | |
| KR20210083267A (en) | Method and device, storage medium, and electronic device for handling interference | |
| JP6517299B2 (en) | Use of coordinate indicator in HetNet deployment | |
| CN109831813B (en) | Cell search method and device in LAA communication | |
| CN104955106A (en) | Resource distribution and data processing method and device thereof | |
| CN114726493A (en) | Method and apparatus for information transmission and information reception |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220424 Address after: Luxemburg Luxemburg Patentee after: Interest Thinking International Co.,Ltd. Address before: Room A2117, Building B, 555 Dongchuan Road, Minhang District, Shanghai, 200240 Patentee before: SHANGHAI LANGBO COMMUNICATION TECHNOLOGY Co.,Ltd. |