CN105682241B - Method and device for occupying unauthorized carrier - Google Patents

Method and device for occupying unauthorized carrier Download PDF

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Publication number
CN105682241B
CN105682241B CN201410675797.5A CN201410675797A CN105682241B CN 105682241 B CN105682241 B CN 105682241B CN 201410675797 A CN201410675797 A CN 201410675797A CN 105682241 B CN105682241 B CN 105682241B
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signaling
unlicensed spectrum
time domain
information
unauthorized
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CN105682241A (en
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李新彩
苟伟
彭佛才
赵亚军
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ZTE Corp
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ZTE Corp
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Priority to PCT/CN2015/080993 priority patent/WO2016078396A1/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling

Abstract

The invention discloses a method and equipment for occupying an unauthorized carrier, and relates to a wireless communication technology. The invention discloses a method for occupying an unauthorized carrier, which comprises the following steps: the method comprises the steps that a first device sends signaling for indicating unlicensed spectrum resource information to a second device; and the first equipment transmits data to the second equipment or stops transmitting data according to the signaling for indicating the unlicensed spectrum resource information. The invention also discloses an occupation method of the unauthorized carrier wave and sending and receiving equipment. According to the technical scheme, the resource occupation scheme with reasonable design greatly reduces the waste of unauthorized resources, ensures that the terminal still carries out data first transmission/retransmission on the same unauthorized carrier according to the original timing relation of LTE, and ensures QoS.

Description

Method and device for occupying unauthorized carrier
Technical Field
The present invention relates to wireless communication technologies, and in particular, to a method and a device for occupying an unlicensed carrier.
Background
By far, it is well known that Long Term Evolution (LTE) is deployed operating in licensed carriers. However, as LTE evolves, the issue of LTE deployment in unlicensed carriers also needs to be studied.
The unlicensed carrier has the following characteristics:
1. free/low cost: unlicensed spectrum does not need to be purchased, and spectrum resources are zero cost.
2. The admission requirement is low, the cost is low: individuals and enterprises can participate in deployment, and equipment of equipment manufacturers can be deployed at will.
3. Resource sharing: when a plurality of different systems operate in the same system, or different operators of the same system operate in the same system, some resource sharing modes can be considered, and the spectrum efficiency is improved.
4. The wireless access technologies are many: different communication standards can be used, but the cooperation difficulty is high, and the network topology is various.
5. The wireless access sites are many: the number of users is large, but the cooperation difficulty is large, and the centralized management overhead is large.
6. The application is as follows: various services may operate therein, such as: machine to Machine (M2M, Machine to Machine) service, automobile to automobile (V2V, Vehicle to Vehicle) service.
The above feature determines that the unlicensed carrier may be an important evolution direction of the wireless communication system, but there are many problems, such as: various wireless systems exist in the unlicensed carrier, and are difficult to coordinate with each other and have serious interference.
Currently, the usage of unlicensed carriers in LTE is mainly based on Carrier Aggregation (CA) and Dual Connectivity (DC), when operating in Carrier Aggregation mode, LTE licensed carriers are used as primary carriers, and unlicensed carriers are used as secondary carriers, where the unlicensed carriers used as secondary carriers have two forms: SDL and TDD, wherein in the SDL scheme, an unlicensed carrier is used as a downlink carrier for transmitting only data, and in the TDD scheme, the unlicensed carrier operates in the TDD scheme (both uplink and downlink).
When an unlicensed carrier form in a TDD mode is adopted, assuming that uplink transmission is performed on an unlicensed carrier through LTE licensed carrier cross-carrier scheduling at a subframe n, that is, uplink transmission time of the unlicensed carrier is n + k; when U carrier (Unlicensed carrier) resource occupation is performed using a Listen Before Transmit (LBT) mechanism, if the eNB does not successfully occupy U resources at a time close to n + k, possible reasons include: the regression of the main system causes the base station to exit from the currently contended resource, and other strong interference systems cause the base station to exit from the contended resource due to the reduction of the transmission reliability, which may cause the problem that the scheduling timing of the unlicensed carrier is not matched with the occupied time of the carrier.
Furthermore, according to the existing hybrid automatic repeat request (HARQ) protocol, the first transmission and the retransmission of data need to be on the same carrier, and assuming that the unlicensed carrier at the time n + k is successfully contended by using LBT, the UE transmits data by using the unlicensed carrier at the time n + k, but due to the influence of the channel, the data is in error, and the UE needs to perform data retransmission at the predefined HARQ timing, for example: the data retransmission is performed at the subframe n + k + m, so that if the LBT mechanism is used at the subframe n + k + m and the unlicensed carrier is not successfully contended, the above mentioned problem that the scheduling timing of the unlicensed carrier is not matched with the occupied time of the carrier may also occur.
In addition, in the dual connectivity mode, some control and feedback information also needs to be transmitted on the unlicensed carrier, some information needs to be performed at a fixed time according to a predefined timing relationship, but if the LBT mechanism is used, no contention is made for the unlicensed carrier at this time, a large delay is generated, which affects the system performance.
Generally, in a wireless system, the time occupied by unauthorized resources is continuously occupied for a period of time, and in LTE, scheduling and data transmission, as well as first transmission and retransmission of a certain data packet are not continuously performed, and there is a time interval in the middle, so if a continuous resource occupation manner is adopted, resource waste is caused, and the problem of low resource occupation flexibility exists.
There is no solution to the above problems.
Disclosure of Invention
The invention aims to solve the technical problem of providing a method and equipment for occupying unauthorized carriers so as to solve the problem of unauthorized resource waste.
In order to solve the technical problem, the invention discloses a method for occupying an unauthorized carrier, which comprises the following steps:
the method comprises the steps that a first device sends signaling for indicating unlicensed spectrum resource information to a second device;
and the first equipment transmits data to the second equipment or stops transmitting data according to the signaling for indicating the unlicensed spectrum resource information.
Optionally, in the above method, the sending, by the first device, the signaling for indicating the unlicensed spectrum resource information to the second device refers to:
the first device sends the unauthorized spectrum resource indication signaling to a second device through an air interface on an existing physical channel of an authorized carrier; or
The first equipment sends the unauthorized spectrum resource indication signaling to second equipment through an air interface on an unauthorized carrier wave public channel; or
And the first equipment sends the unauthorized spectrum resource indication signaling to the second equipment on an appointed carrier common channel through an air interface.
Optionally, in the method, the unlicensed spectrum resource information indicated by the first device in the signaling for indicating the unlicensed spectrum resource information includes one or more of the following:
a first device on an unlicensed spectrum occupies resources to send data time domain position information;
stopping sending data time domain position information in occupied resources by first equipment on the unlicensed spectrum;
and newly adding and sending data time domain position information after the first equipment on the unlicensed spectrum occupies the resources.
Optionally, in the foregoing method, the first device sends, through a dedicated occupation signal or a signaling, a signaling for instructing the first device to occupy a resource on an unlicensed spectrum to send data time domain location information; or
And the first equipment sends a signaling for indicating that the first equipment on the unlicensed spectrum newly sends data time domain position information after occupying resources through a special occupied signal or signaling.
Optionally, in the above method, the first device indicates, through a physical layer downlink control signaling (DCI), that the first device occupies a resource on an unlicensed spectrum to send the data time domain location information; or
The first device indicates, through physical layer downlink control signaling (DCI) and/or relative to a starting offset value, that the first device newly transmits data time domain location information after occupying resources on the unlicensed spectrum.
Optionally, in the above method, the first device indicates the unlicensed spectrum resource information using a reserved bit state of a carrier indicator bit field (CIF) in the DCI; or
Indicating the unlicensed spectrum resource information in a bitmap mode; or
The unlicensed spectrum resource information is indicated by setting a dedicated bit in the DCI.
Optionally, in the above method, the sending, by the first device, the signaling for indicating the unlicensed spectrum resource information to the second device refers to:
the first device is carried by a common search space of a physical downlink control channel PDCCH or an enhanced physical downlink control channel EPDCCH, and scrambles the signaling for indicating the unauthorized spectrum resource information by a special appointed radio network temporary identifier RNTI.
Optionally, in the foregoing method, the signaling for indicating the unlicensed spectrum resource information indicates that the first device on the unlicensed spectrum occupies the resource to transmit the data time domain location information and/or indicates a plurality of discontinuous moments when the first device on the unlicensed spectrum newly transmits the data time domain location information after the resource has been occupied.
Optionally, in the method, when the signaling for indicating the unlicensed spectrum resource information indicates a plurality of discontinuous time instants, a time domain granularity of the indicated time instant is a subframe or an OFDM symbol.
Optionally, in the above method, a time when the first device sends a signaling for indicating the unlicensed spectrum resource information to the second device is M, and a time when the first device sends data according to the signaling for indicating the unlicensed spectrum resource information satisfies any one of the following conditions:
M+4+10*N、M+7+10*N、M+6+10*N、M+4*N、N;
wherein N is an integer of 0 or more.
Optionally, in the above method, when the first device sends data to the second device according to the signaling for indicating the unlicensed spectrum resource information, the method includes transmitting scheduled uplink and downlink data, or transmitting feedback information or information with a high priority.
Optionally, in the above method, before the first device sends, to the second device, a signaling indicating the unlicensed spectrum resource information, the method further includes:
the first equipment determines that the first equipment occupies resources on the unlicensed spectrum to send data time domain position information and/or the first equipment on the unlicensed spectrum newly increases to send the data time domain position information after occupying resources according to the data HARQ timing relation and the maximum transmission times; or
The first equipment determines that the first equipment occupies resources on the unlicensed spectrum to send data time domain position information according to the result of operator/equipment negotiation and/or the first equipment on the unlicensed spectrum additionally sends data time domain position information after occupying resources; or
And the first equipment determines that the first equipment occupies resources on the unlicensed spectrum to send data time domain position information according to the measurement result, stops sending the data time domain position information in the occupied resources by the first equipment on the unlicensed spectrum, and newly adds one or more of the data time domain position information after the first equipment on the unlicensed spectrum occupies the resources.
Optionally, the method further includes:
the second device receives the signaling for indicating the unauthorized spectrum resource information, and obtains the unauthorized spectrum resource use information through the signaling for indicating the unauthorized spectrum resource information;
and the second equipment reserves the unauthorized carrier resources at the corresponding moment according to the unauthorized spectrum resource use information or starts to compete for the resources at the moment of resource release.
Optionally, in the above method, the second device obtains the unlicensed spectrum resource usage information through the signaling for indicating the unlicensed spectrum resource information, and obtains the unlicensed spectrum resource usage information through a detected signal or received feedback information.
The invention also discloses a method for occupying the unauthorized carrier, which comprises the following steps:
receiving end equipment receives a signaling used by a sending end for indicating unauthorized frequency spectrum resource information, and obtains unauthorized frequency spectrum resource use information from the signaling;
and the receiving equipment reserves the unauthorized carrier resources at the corresponding moment according to the obtained unauthorized spectrum resource use information or starts to compete for the resources at the moment of resource release.
Optionally, in the foregoing method, the unlicensed spectrum resource information indicated in the signaling for indicating the unlicensed spectrum resource information includes one or more of the following:
sending end equipment occupies resources on an unlicensed spectrum to send data time domain position information;
sending end equipment stops sending data time domain position information in occupied resources on the unlicensed spectrum;
and newly adding data time domain position information after the sending end equipment on the unlicensed spectrum occupies the resources.
Optionally, in the method, when the signaling for indicating the unlicensed spectrum resource information indicates that the sending end device on the unlicensed spectrum occupies the resource to send the data time domain position information, the receiving end device monitors, in a time period included in the time domain position where the sending end device on the unlicensed spectrum occupies the resource to send the data time domain position information, that the sending end device on the unlicensed spectrum stops sending the data time domain position information in the occupied resource, and/or additionally sends the data time domain position information after the sending end device on the unlicensed spectrum occupies the resource.
Optionally, in the method, the receiving end device stops sending data time domain position information in an occupied resource on the corresponding subframe monitoring unlicensed spectrum based on a predefined pattern relationship between a process and a signaling receiving time, and/or additionally sends data time domain position information after the occupied resource on the unlicensed spectrum.
Optionally, in the above method, the receiving end device receives a signaling indicator used by the sending end to indicate the unlicensed spectrum resource information, where the signaling indicator is:
the receiving end equipment receives the unauthorized spectrum resource indication signaling on the existing physical channel of the authorized carrier through an air interface; or
The receiving end equipment receives the unauthorized frequency spectrum resource indication signaling on an unauthorized carrier wave public channel through an air interface; or
And the receiving terminal equipment receives the unauthorized spectrum resource indication signaling on a convention carrier common channel through an air interface.
Optionally, in the above method, the receiving end device receives, through a special occupied signal or a signaling, a signaling for indicating that a signaling sending end on an unlicensed spectrum occupies a resource to send data time domain location information; or
The receiving end equipment receives a signaling for indicating that a signaling sending end on an unauthorized frequency spectrum newly adds and sends data time domain position information after occupying resources through a special occupied signal or signaling.
Optionally, in the above method, the receiving end device obtains, through a physical layer downlink control signaling (DCI), time domain position information of data transmission by a resource occupied by a signaling transmitting end on an unlicensed spectrum; or
The receiving end equipment obtains the time domain position information of the newly added sending data after the signaling sending end on the unlicensed spectrum occupies the resources through a physical layer downlink control signaling (DCI) and/or relative to the initial offset value.
Optionally, in the above method, the receiving end device obtains the unlicensed spectrum resource information through a reserved bit state of a carrier indicator bit field (CIF) in the DCI; or
Obtaining unauthorized spectrum resource information in a bitmap mode; or
The unlicensed spectrum resource information is obtained by setting a dedicated bit in the DCI.
Optionally, in the foregoing method, the signaling for indicating the unlicensed spectrum resource information indicates that the signaling sending end device on the unlicensed spectrum occupies the resource to send the data time domain position information and/or indicates a plurality of discontinuous moments when the signaling sending end device on the unlicensed spectrum additionally sends the data time domain position information after the resource has been occupied.
The invention also discloses a sending terminal device of the unauthorized carrier occupation method, which comprises:
the signaling sending module is used for sending a signaling for indicating the unauthorized frequency spectrum resource information to the receiving terminal equipment;
and the data sending module is used for sending data to the receiving terminal equipment or stopping sending the data according to the signaling for indicating the unauthorized spectrum resource information.
The invention also discloses a receiving terminal device of the unauthorized carrier occupation method, which comprises the following steps:
the signaling receiving and analyzing module is used for receiving a signaling for indicating the unauthorized spectrum resource information and analyzing the signaling for indicating the unauthorized spectrum resource information to obtain the unauthorized spectrum resource use information;
and the signaling processing module reserves the unauthorized carrier resources at the corresponding moment according to the unauthorized spectrum resource use information analyzed and obtained by the signaling receiving and analyzing module, or starts to compete for the resources at the moment of resource release.
The technical scheme of the application provides an occupation method and equipment of an unauthorized carrier, which greatly reduce the waste of unauthorized resources through a reasonably designed resource occupation scheme, ensure that a terminal still performs data first transmission/retransmission on the same unauthorized carrier according to the original timing relation of LTE, and ensure QoS. Meanwhile, by continuously sending and updating the related occupation signaling, the sharing of the time information of the occupation of the unauthorized carrier by the sending end is realized, the coordinated utilization of the unauthorized carrier in a wireless communication system is facilitated, and the utilization rate of the unauthorized carrier is improved. In addition, the embarrassing situation that the resources cannot be competed if temporary burst data are transmitted is avoided by reserving the resources at a plurality of moments in advance.
Drawings
Fig. 1 is a flowchart illustrating a method for occupying an unlicensed carrier on a first device contending for an unlicensed resource according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating a method for occupying an unlicensed carrier on a second device side according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be further described in detail with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments of the present application may be arbitrarily combined with each other without conflict.
Example 1
The embodiment first provides a first method for occupying an unlicensed carrier, which is mainly described from a transmitting end side, and the method mainly includes the following operations:
the method comprises the steps that a first device sends signaling for indicating unlicensed spectrum resource information to a second device;
and the first equipment transmits data to the second equipment or stops transmitting the data according to the signaling for indicating the unlicensed spectrum resource information.
Specifically, the first device may send, over an air interface, a signaling for indicating the unlicensed spectrum resource information on the licensed carrier by using an existing physical channel. And sending a signaling for indicating the unlicensed spectrum resource information on the unlicensed carrier or the appointed carrier common channel through an air interface.
Preferably, the first device may further be carried through (E) PDCCH common search space, and scramble the signaling for indicating the unlicensed spectrum resource information through a special agreed RNTI.
And when the first device sends data, the first device transmits uplink and downlink data in a transmission scheduling mode, or transmits feedback information or information with high priority.
Wherein the unlicensed spectrum resource information indicated in the signaling for indicating unlicensed spectrum resource information includes at least one of:
a first device on an unlicensed spectrum occupies resources to send data time domain position information (hereinafter, a signaling indicating the information is referred to as an occupied time signaling);
stopping sending data time domain position information (hereinafter, a signaling indicating the information is referred to as an occupation termination signaling) by the first equipment on the unlicensed spectrum in the occupied resources;
the first device on the unlicensed spectrum additionally sends data time domain location information after occupying resources (hereinafter, the signaling indicating the information is referred to as occupancy update signaling).
The occupancy time signaling and/or the occupancy update signaling may be sent by the first device through a dedicated occupancy signal or signaling. In addition, the first device may send the occupation time signaling through a physical layer downlink control signaling (DCI), or may send the occupation update signaling through the DCI and/or a relative start offset (offset) value. Specifically, the first device may indicate one or several of initial occupation time, occupation update, and occupation termination using a reserved bit state of a carrier indication bit field (CIF) in the DCI. The first device may also indicate the occupation time instant and/or the occupation termination in the form of a bitmap (bitmap). The first device may also set a dedicated bit in the DCI to indicate one or several of initial occupation time, occupation update, and occupation termination.
It should be noted that the occupation signaling and/or the occupation update signaling involved in the present embodiment are used to indicate a plurality of non-consecutive time instants.
The time domain granularity of the occupied time instants may be either a subframe or an OFDM symbol.
If the signaling sending time for indicating the unlicensed spectrum resource information is M, the data sending time of the first device may satisfy any one of the following conditions:
M+4+10*N、M+7+10*N、M+6+10*N、M+4*N、N;
n is an integer of 0 or more.
Before the first device sends the signaling for indicating the unlicensed spectrum resource information, it needs to determine occupation information of the unlicensed spectrum resource, and specifically performs the following operations:
and determining a plurality of occupation moments and/or occupation updating moments according to the data HARQ timing relationship and the maximum transmission times, namely, the first equipment on the unlicensed spectrum occupies the resources to send data time domain position information and/or the first equipment on the unlicensed spectrum newly adds and sends the data time domain position information after occupying the resources, or determining a plurality of occupation moments according to the result of operator/equipment negotiation. Or determining one or more of the occupation time, the occupation termination and the occupation updating time according to the measurement result.
The first device may also send the occupancy update signaling to the other device including: and indicating whether the preset occupation time is released or not in a bitmap mode when the base station continuously sends the plurality of UL grants of the plurality of UEs in the time domain.
Correspondingly, after receiving the signaling for indicating the unlicensed spectrum resource information, the second device acquires the unlicensed spectrum resource usage information through the signaling. And then, the second device reserves the unauthorized carrier resources at the corresponding moment according to the unauthorized spectrum resource use information, or starts to compete for the resources at the moment of resource release. Preferably, the second device may obtain the unlicensed spectrum resource usage information from a signaling indicating the unlicensed spectrum resource usage information, and may also obtain the unlicensed spectrum resource usage information according to an implicit indication such as a detected signal or feedback information.
Next, the present embodiment further provides a second method for occupying an unlicensed carrier, which is mainly described from a receiving end side, and the method includes:
receiving end equipment receives a signaling which is sent by a sending end and used for indicating unauthorized frequency spectrum resource information, analyzes the signaling and obtains unauthorized frequency spectrum resource use information from the signaling;
and the receiving terminal equipment reserves the unauthorized carrier resources at the corresponding moment according to the obtained unauthorized spectrum resource use information or starts to compete for the resources at the moment of resource release.
The signaling for indicating the unlicensed spectrum resource information involved in the method is the same signaling as described above, so detailed description of the signaling is omitted.
When the receiving end device receives the signaling for indicating the unauthorized spectrum resource information, which indicates that the sending end device occupies the resource on the unauthorized spectrum to send the data time domain position information (that is, the receiving end device receives the occupation time signaling), the receiving end device can monitor an occupation termination signaling and/or a signaling for indicating occupation update in the period of time included in the occupation time signaling; or, the receiving end device may monitor the occupation termination signaling and/or the occupation update signaling in the corresponding subframe based on a predefined pattern relationship between the process and the receiving time of the signaling.
The details of the transmission, update and termination of the occupation signaling in the above method are further described in detail with reference to the drawings and specific application examples.
First, a specific implementation of the method for occupying the first unlicensed carrier is described with reference to fig. 1 as an example.
As shown in fig. 1, the first device determines signaling indicating occupied time required to transmit when contending for the unlicensed carrier resource, and/or signaling indicating an occupancy update, and/or signaling indicating an occupancy termination, the second device sends signaling indicating the occupation time and/or signaling indicating occupation termination and/or signaling indicating occupation update in the authorized carrier or the unlicensed carrier or the appointed carrier, receives the signaling indicating the occupation time and/or the signaling indicating occupation termination and/or the signaling indicating occupation update in the authorized carrier or the unlicensed carrier or the appointed carrier, according to the signaling indicating the occupation time and/or the occupation updating signaling, the unauthorized resource corresponding to the occupation time in the occupation signaling is reserved, and/or according to the signaling of occupation termination, starting to compete for the unauthorized resources at the reserved time.
The first device and the second device are both devices participating in contention with unauthorized resources, such as a base station, a terminal, a relay and other mobile devices.
Specifically, the implementation process of the method includes the following steps:
step 101: the base station determines one or more of occupation time signaling, occupation updating signaling and occupation termination signaling which need to be sent;
specifically, the base station first determines a plurality of initial occupied moments according to the HARQ timing relationship of data transmission, or the feedback timing relationship of data transmission, or the measurement feedback timing relationship.
Or multiple neighboring base stations or UE devices of different operators may perform an occupation negotiation of an unlicensed resource over an air interface, such as a common channel, to determine an occupation time of each device.
Preferably, the occupied time is several discontinuous time, and the occupied time domain granularity is at a subframe level or an OFDM symbol level.
Preferably, the subsequent base station determines the indication occupation update signaling and/or the occupation termination signaling which needs to be sent according to the demodulation result of the base station or the terminal on the data and/or the resource scheduling condition of the cell.
The occupation time of the unlicensed carrier can also be determined according to the usage of the licensed carrier, such as: judging whether to perform data transmission on the unauthorized carrier according to the load of the current authorized carrier, for example, if the RB occupancy of the current authorized carrier reaches a preset first threshold, or if the OI value of the current authorized carrier is greater than a preset second threshold, the base station determines to perform data transmission on the unauthorized carrier and sends an occupation signaling.
Preferably, when the initially sent occupation time signaling is not matched with the actual occupation time of the carrier, the base station needs to send a signaling indicating occupation update and/or a signaling indicating occupation termination; wherein the content of the first and second substances,
the determining that the initially sent unauthorized carrier occupation time is not matched with the actual unauthorized carrier occupation time includes: the base station sends the resource authorization of the unauthorized carrier and the signaling indicating a plurality of occupation moments on the premise of successfully occupying the unauthorized carrier, but the base station finds that the unauthorized carrier does not need to be occupied any more (including that data is successfully received, or authorized resources meet the self requirement, or signals needing to be avoided are encountered to release the unauthorized resources at the preset occupation moment) at the occupation timing moment (or before the occupation timing moment).
Step 102: the base station sends one or more of an occupation time signaling, an occupation updating signaling and an occupation termination signaling in an authorized carrier or an unauthorized carrier or an appointed carrier;
specifically, the appointed carrier is a common channel of a licensed carrier or an unlicensed carrier.
Preferably, the base station may carry the occupied time of the unlicensed carrier by a dedicated signal, such as an occupied signal.
Preferably, the base station may indicate, through the DCI, several time instants at which the unlicensed carrier is occupied, where the time instants are used for transmitting data or feedback information.
Subsequently, the base station judges whether the plurality of previously indicated occupation moments are really used according to the scheduling condition and the demodulation result, and if the occupation is not needed any more or only part of the plurality of previously indicated occupation moments are needed to be occupied, the base station sends the occupation termination signaling to release all or part of the previously indicated occupation moments. And if the new time needs to be occupied, sending an occupation updating signaling.
Specifically, the manner in which the base station occupies a plurality of discontinuous time points is as follows: regularly and equally spaced, or according to a pattern, or according to a predefined timing relationship.
Specifically, the manner of indicating the occupied time by the base station is as follows: and indicating the occupation time of the subsequent sub-frame by means of bitmap or defining a special bit state to indicate the occupation of the predefined time.
Specifically, the method for updating the indication occupancy of the base station is as follows: an offset (offset) value relative to the initial occupied resource time is sent, or still in bitmap form.
The base station sends, to other resource competing devices through the DCI in the physical layer, an offset value indicating that the occupied update signaling is relative to the initial occupied resource time, which may be: the mapping pattern of the offset value and the bit state is established in advance, the offset value is indicated by the bit state in the DCI or indicated by using a bitmap, and preferably, the offset value can be indicated by using the reserved bit state of the CIF bit field.
Specifically, the signaling indicating the termination of the occupation by the base station is: setting the signaling as an invalid value or terminating the prior partial occupation time in a mode of a plurality of preset time bitmaps.
The sending of the occupation indication signaling by the base station through the physical layer DCI may be: the base station uses a reserved bit status indication of a carrier indication bit field (CIF) in the DCI, or sets a special bit indication in the DCI, or uses an appointed RNTI to scramble physical layer signaling to indicate the occupation of an unauthorized carrier.
The occupied time is divided into two different situations of synchronous HARQ and asynchronous HARQ according to the value determined by the HARQ timing relationship, and for the synchronous HARQ situation, the occupied time value is at least one of the following: a multiple of 4, N +4+ 10N (N is an integer equal to or greater than 0), N +7+ 10N (N is an integer equal to or greater than 0), and N +6+ 10N (N is an integer equal to or greater than 0); for the asynchronous HARQ case, the value is M (M is an integer greater than or equal to 1).
Preferably, the base station sends the unauthorized resources occupying a plurality of times of the signaling reservation, so as to avoid the delay caused by the fact that the resources are not robbed when the data with high priority is sent.
Preferably, the base station may update the subsequent occupied time according to the data demodulation and scheduling conditions, thereby providing flexibility.
Preferably, the base station sends the occupation termination signaling to timely inform other devices of the release of the predetermined resources, so that the resource utilization rate is improved.
The following describes a specific implementation of the second unlicensed carrier occupying method with reference to fig. 2, where the implementation process includes the following steps:
step 201: the base station which does not compete to the resource receives one or more of an occupation time signaling, an occupation updating signaling and an occupation termination signaling in the appointed carrier;
step 202: the base station reserves the unauthorized resource at the corresponding moment according to the occupation indication signaling, starts resource competition at the released previously reserved resource moment according to the occupation termination signaling, and reserves a new occupation moment according to the occupation update signaling.
Specifically, other devices participating in the unlicensed carrier contention acquire the occupation indication signaling and/or the occupation update signaling and/or the occupation termination signaling through the DCI in the appointed carrier.
The FDD system is taken as an example to explain, and a device, such as a base station, which preempts resources in advance performs an indication of an occupation time according to a synchronous timing relationship of the uplink HARQ, for example, a 2-bit signaling is defined to indicate that four reserved times correspond to uplink data for at most four transmissions, and then updates or terminates occupation according to a data demodulation condition, or authorizes a carrier and schedules resources.
Specifically, the implementation process of the method for occupying an unlicensed carrier is as follows:
assuming that the base station contends for the unlicensed resource at time N, the DL grant is transmitted on the licensed carrier or the unlicensed carrier while the resource occupation indication signaling 11 is broadcasted on the appointed carrier, that is, the DL grant corresponds to time N +4, N +12, N +20, N +28, and occupies 1ms each time.
After receiving the occupation indication information, other devices participating in competition reserve the four time resources according to the predefined relationship, that is, the four time resources do not compete for the unauthorized resources, and only the base station sending the occupation instruction and the subordinate UE can use the resources.
Then, at the time of N +4, the UE performs the first data transmission on the reserved resource according to the HARQ timing relationship, and if the base station succeeds in receiving for the first time, the base station feeds back ACK to the UE on the authorized carrier at the time of N +8 while setting the corresponding reserved resource indication signaling to be invalid or null, that is, other base stations know that the base station no longer uses the unauthorized resource, so that N +12, N +20, and N +28 can be released to be used by other base stations.
If the base station does not receive successfully for the first time, the UE needs to retransmit, and when NACK is sent, one 10 is broadcast, which means that the UE may occupy three times, and the corresponding time is N +12, N +20, and N +28, and other base stations need to continuously reserve the resource.
And at the moment of N +12, the UE utilizes the reserved carrier again to send the first retransmission data, if the base station is paired, the UE sends ACK and sets corresponding reserved resource indication signaling to be invalid or null at the same time, namely, the UE informs other base stations of releasing the reserved time at the moment of N +20 and the moment of N + 28.
If the base station still does not perform the first retransmission, when the NACK is fed back to the terminal, the reserved resource use signaling 01 is updated, and other base stations are notified that resources at two times, namely N +20 and N +28, need to be reserved continuously.
And at the moment of N +20, the UE still utilizes the unauthorized carrier to send second retransmission data, and similarly, if the base station is paired, the UE feeds back ACK and sets corresponding reserved resource indication signaling to be invalid or empty at the same time to inform other base stations of releasing reserved resources at the moment of N + 28.
If not, feeding back NACK and broadcasting 00 at the same time, and telling other base stations to reserve once.
Under the condition that the unlicensed carrier can transmit the feedback information, the occupation time also comprises N +8, N +16 and N +24 feedback time, so that the uplink HARQ is ensured to be executed according to the original timing relationship.
Meanwhile, other equipment obtains whether the reserved subsequent time is used or not according to the timing relation through the fed back ACK/NACK information, namely the ACK/NACK information is used for indicating the use of the subsequent resource, the ACK represents that the occupied resource is not used any more, and the NACK represents that the resource at the predefined time is reserved continuously.
Such as:
other devices only need to decode whether the reserved resource releases signaling on the appointed carrier according to one or more of the HARQ feedback timing moments such as N +8, N +16 and N + 24. And the UE transmits the uplink data on the corresponding reserved resources according to the original timing relationship and the ACK/NACK feedback information.
In the embodiment, the occupation time is carried out according to the HARQ timing relationship, so that the UE carries out data first transmission and retransmission according to the original uplink HARQ synchronous timing relationship without receiving the influence of an unauthorized carrier resource competition mechanism, and the QoS is ensured.
Taking the TDD system as an example, the transmission of the occupancy update signaling will be described in detail below. In the TDD system, the uplink and downlink subframes are configured to be 0.
Assuming that a base station sends an unlicensed carrier at N time to be used as a scheduling grant for uplink transmission, the time when the base station needs to occupy the unlicensed carrier may be predicted to be: one or more of N +4, N +14, N +24, N + 34.
Assume that the base station receives correctly for the data packet transmitted at time N + 4. At this time, if the base station has downlink data to transmit or uplink data to be scheduled, the existing authorized carrier resources may not be enough. For example, the RB occupancy of the current licensed carrier reaches a preset first threshold, or the OI value of the current licensed carrier is greater than a preset second threshold. The base station determines that data transmission is carried out on the unauthorized carrier, and at the moment, the base station can send an occupation instruction of the unauthorized carrier. And informing other sites that the unlicensed carrier resources need to be continuously occupied, wherein the occupied updating time can be informed through related signaling.
For example, the base station wants to transmit downlink data by using the carrier, and at the same time, when the TDD uplink and downlink subframe configuration is changed to configuration 1, the time required to be occupied is N +5, N +6, N +9, and N + 10.
The signaling can be expressed in a bitmap mode of 110011 to inform other devices, and can also be expressed in an occupancy time offset mode before. Specifically, the base station notifies the offset of the new scheduling resource position relative to the starting scheduling resource position through the physical layer DCI, for example, the offset is indicated by using the reserved bit state of the CIF bit field in the DCI, here, the mapping relationship between the reserved bit state of the CIF bit field and the offset value may be predefined, for example, the reserved state 101 corresponds to an offset value of 4, 110 corresponds to an offset value of 8, and 111 corresponds to an offset value of 12. This information may also be carried on DCI with a special RNTI scrambling.
This information is sent via the licensed or unlicensed or promised carrier and broadcast to other stations in the vicinity.
The base station may carry the occupied time of the unlicensed carrier by a proprietary signal, such as an occupied signal. Alternatively, the base station may transmit through physical layer downlink control signaling (DCI). The signaling is carried over (E) PDCCH common search space and scrambled by a special agreed RNTI. Alternatively, the signaling is carried using a reserved bit state of a carrier indicator bit field (CIF) in the DCI. Or define a special bit field to indicate.
Other competing devices receive the relevant DCI in the authorized carrier wave at the appointed time, preferably, the other competing devices monitor whether the DCI is transmitted or not in the period from the resource authorization obtaining time to the transmission time determined by the original occupation timing; or, other competing devices monitor whether the DCI is transmitted in the corresponding subframe based on a pattern relationship between a predefined process and the DCI receiving time, and according to a signaling parsed from the DCI, preferably, obtain an offset value corresponding to the initial occupied resource position by using a reserved bit state of a CIF bit field in the DCI or by using a dedicated bit set in the DCI, and transmit data at the new occupied resource position obtained by using the offset value, where the original occupation termination is known by using a reserved bit state of the CIF bit field in the DCI or by using a predefined bitmap mapping relationship in the DCI, and the other competing devices do not transmit data at the initial occupied resource position.
The embodiment is mainly used for explaining that if the base station which occupies the unauthorized resources is transmitted by the emergency downlink service, the predetermined resources can be selected not to be released even if the data scheduling on the unauthorized carrier is finished, and the resources are used for transmitting the downlink data, so that the time delay is reduced.
In addition, the base station can also use the predetermined unauthorized resource to continue scheduling other uplink users to transmit the required data.
Taking the FDD system as an example, a process of using the occupied unauthorized carrier by the base station for downlink data transmission will be described.
Suppose that at time N, the base station camps on the unlicensed carrier resource, sends an occupation signaling to reserve the resource, for example, bitmap 1000101 indicates that the occupation time is N, N +4, N +6, that is, it is occupied according to a pattern, and it is assumed here to send downlink data. And, this information is sent through the authorized carrier or the unauthorized carrier or the appointed carrier, and broadcasted to other surrounding sites and UEs.
And other equipment receiving the information reserves the unauthorized resource at the corresponding moment according to the information.
Then, the base station sends the downlink data at the occupied time, and the UE receives the downlink data at the corresponding time according to the occupied information.
If the UE transmits the ACK/NACK feedback information of the downlink data in the midway, in order to avoid time delay caused by that the base station cannot occupy the corresponding unauthorized carrier resources at the feedback timing moment, an updating instruction can be sent to ensure that the corresponding important information can be sent on the unauthorized carrier.
Specifically, for example, at time N +4, the base station sends a new downlink grant and downlink data on a predetermined unlicensed carrier, and according to the feedback timing relationship of the HARQ, the terminal needs to perform ACK/NACK feedback on the received downlink data at time N +4 at time N + 8. At this time, the base station may send an occupancy update signaling to ensure that the unlicensed carrier is available at time N + 8. This signaling may be in the form of a bitmap, denoted 0001, or an offset value of 10 for the preceding N +6 time instances, representing the occupied delay of 2 time instances.
The occupation update information base station can send the occupation update information to other devices participating in the non-authorized resource competition through an air interface or an existing physical channel on an authorized carrier or a non-authorized carrier or a convention carrier common channel.
Specifically, the base station may carry the occupied time of the unlicensed carrier by a dedicated signal, such as an occupied signal. In addition, the base station may also transmit through physical layer downlink control signaling (DCI). The signaling is carried over (E) PDCCH common search space and scrambled by a special agreed RNTI. Alternatively, the signaling is carried using a reserved bit state of a carrier indicator bit field (CIF) in the DCI. Or define a special bit field to indicate.
This embodiment is to illustrate that some urgent related information of other control classes except data may also be transmitted by the predetermined unauthorized carrier resources, so as to avoid transmission delay caused by temporary lack of resource preemption.
The transmission of the occupation termination signaling will be described.
At this time, the occupation termination may be one or more predetermined time instances of occupation termination. Or may terminate the occupancy at a predetermined time corresponding to one or more UL/DL grants.
For example, the device contending for the resource (assumed to be the base station) is previously scheduled to use a plurality of times N +7, N +17, N +27, and N +37 for four transmissions of the uplink HARQ corresponding to a certain UL grant in TDD. As a result, the data is received correctly after the first transmission, and the base station has no other data to continue transmitting on the unlicensed carrier, and the base station may send an occupation termination signaling to other devices. This signaling may be represented by an invalid value, or a zero value.
In addition, it is also possible to instruct termination of occupation of a plurality of UL or DL grants at a plurality of predetermined times by transmitting one occupation termination instruction.
Specifically, the base station may transmit through physical layer downlink control signaling (DCI). The signaling is carried over (E) PDCCH common search space and scrambled by a special agreed RNTI. Alternatively, the signaling is carried using a reserved bit state of a carrier indicator bit field (CIF) in the DCI. Or define a special bit field to indicate.
Other competing devices receive the relevant termination information in the licensed or unlicensed carrier or the licensed carrier at the provisioned time.
Preferably, other competing devices monitor whether the DCI is transmitted during a period from the time of obtaining the resource authorization to the transmission time determined by the original occupation timing; or, other competing devices monitor whether there is the DCI transmission in the corresponding subframe based on the pattern relationship between the predefined process and the DCI receiving time, and preferably, by using the reserved bit state of the CIF bit field in the DCI or by using the dedicated bit set in the DCI, know the original occupation termination according to the signaling parsed from the DCI,
specifically, for the case that the other contending device corresponds to multiple UL grants, the processing of the received DCI signaling by the other contending device at least includes one of the following:
1. receiving the DCI, all subsequent UL grants corresponding to other contending devices are terminated, for example: in this embodiment, when receiving the DCI received at the time n + k +1, other competing devices terminate all of the 2 ul grants continuously transmitted at the time n and the time n +1 of the subframe;
2. the other competing devices determine that the UL grant of the corresponding process is terminated based on the bit indication in the DCI;
3. the other competing devices receive the DCI at corresponding time based on a predefined process and a receiving time pattern relation of the DCI, and determine whether the UL grant of the corresponding process is terminated, for example, for a process predefined to send the UL grant at a subframe n, the other competing devices receive whether the DCI indicating that the process is invalid at a time of n + k +1, and for a process predefined to send the UL grant at a subframe n +1, the other competing devices receive whether the DCI indicating that the process is invalid at a time of n + k + 2.
Subsequently, the other devices may start to contend for the resources at a predetermined time before the release.
The case of occupied discontinuous time will be explained.
The base station can only be used for uplink data scheduling or all downlink data scheduling for a plurality of occupied discontinuous moments, and can also be used in uplink and downlink in a crossed mode, namely a TDD mode. The base station may also be used at other times than the discontinuous occupation time indicated by the signaling. For example, assuming that the indicated occupied time is N, N +3 and N +5, other time, such as N +1, N +2 and N +4, can be directly used by the base station and the subordinate UE.
The method for scheduling uplink data can be used for occupying resources according to a predefined synchronous timing relationship, and can also be used for occupying according to a certain pattern. In both cases, the determination can be made comprehensively according to the existing resource situation and the situation of the scheduled user.
Besides, the occupied unlicensed carrier can be preferentially used for transmitting some important information, such as ACK/NACK, DCI, PSS/SSS or VoIP, with high priority.
The determination of the resource occupation by the unauthorized resource will be specifically described.
The time when the base station occupying the unauthorized resource occupies the resource can be determined by two ways:
the first method is as follows: the method determines according to self needs, such as data retransmission or feedback timing or conditions of authorized resources and scheduled users.
The second method comprises the following steps: by negotiating with other competing devices.
Specifically, multiple neighboring base stations or UE devices of different operators may perform an occupation negotiation of an unauthorized resource through an air interface, such as a common channel, to determine an occupation time of each device.
For example, through negotiation, the device of the operator a occupies an odd time and the device of the operator B occupies an even time. Or each device occupies an integer multiple of the time of a different natural number.
And then the equipment competing for the resources informs other equipment and the UE of the cell of the occupied specific time through an air interface.
And subsequently, each competitive device occupies the unauthorized carrier according to the negotiation result and the broadcast occupation time.
The detailed description will be given when a plurality of unauthorized resource timings are scheduled for data retransmission.
If the seized unauthorized resource is used for data retransmission, a maximum number of retransmissions may be specified, for example, the optimal number of transmissions is 4. If a maximum of 4 transmissions is reached, the data packet is still not received correctly. The base station may perform the following candidate processing:
the first method is as follows: the transmission is discarded.
The second method comprises the following steps: turning to the licensed carrier transmission, retransmission is started from redundancy version 0.
The third method comprises the following steps: and switching to a new unlicensed carrier to continue transmission. Here, the new unlicensed carrier is a carrier that the base station contends for, and an unused one may be selected from the available unlicensed carrier set.
The method is as follows: contention for the unlicensed carrier is resumed and no further transmission or re-transmission from RV0 is performed until contention arrives for the carrier. I.e. asynchronous mode retransmission.
Example 2
The embodiment provides an occupation system of an unlicensed carrier, which includes: a first device (also called a sending end device) which occupies the unauthorized resource and all other devices (called receiving end devices) which participate in competition for the unauthorized resource; wherein the content of the first and second substances,
the system comprises a sending terminal device for preempting the unauthorized resource, and a transmitting terminal device for transmitting a signaling in an authorized carrier or an unauthorized carrier or an appointed carrier after determining a signaling indicating occupation moment and/or a signaling indicating occupation termination and/or a signaling indicating occupation update which needs to be transmitted;
and the other receiving end equipment which does not compete to the resources is used for receiving the signaling indicating the occupation time and/or the signaling indicating the occupation termination and/or the signaling indicating the occupation update in the authorized carrier or the unauthorized carrier or the appointed carrier, reserving the corresponding unauthorized carrier resource time according to the occupation signaling, starting resource competition at the released reserved resource time according to the signaling indicating the occupation termination, and/or reserving the corresponding new unauthorized resource time according to the signaling indicating the occupation update.
Specifically, the sending end device of the unlicensed carrier occupation method includes:
the signaling sending module is used for sending a signaling for indicating the unauthorized frequency spectrum resource information to the receiving terminal equipment;
and the data sending module is used for sending data to the receiving terminal equipment or stopping sending the data according to the signaling for indicating the unauthorized spectrum resource information.
In addition, the sending end device may further include a determining module, configured to determine an occupation indicating signaling and/or an occupation terminating indicating signaling and/or an occupation updating indicating signaling that needs to be sent, and notify the signaling sending module.
It should be noted that the sending end device may implement the first unauthorized carrier occupation method provided in embodiment 1, and therefore other detailed descriptions of the sending end device may refer to the corresponding contents of embodiment 1, which is not described herein again.
The receiving end equipment of the unauthorized carrier occupation method comprises a signaling receiving and analyzing module and a signaling processing module; wherein the content of the first and second substances,
the signaling receiving and analyzing module is used for receiving a signaling for indicating the unauthorized spectrum resource information and analyzing the signaling for indicating the unauthorized spectrum resource information to obtain the unauthorized spectrum resource use information;
and the signaling processing module determines the reserved unauthorized carrier resource time according to the unauthorized spectrum resource use information analyzed and obtained by the signaling receiving and analyzing module, or starts to perform resource competition at the original reserved resource time.
It should be noted that the receiving end device may implement the second unlicensed carrier occupying method provided in embodiment 1, and therefore other detailed descriptions of the receiving end device may refer to the corresponding contents of embodiment 1, which is not described herein again.
It can be seen from the foregoing embodiments that the occupation scheme of the unlicensed carrier provided in the technical solution of the present application achieves the purpose of accurately occupying the unlicensed carrier resources. And the occupied signaling is sent by the authorized carrier or the unauthorized carrier, so that the sharing of the time signaling for occupying the unauthorized carrier by the sending end is realized, the problem of how to mutually inform the occupation condition of the unauthorized carrier among devices in the related technology is solved, the coordinated utilization of the unauthorized carrier in a wireless communication system is facilitated, and the utilization rate of the unauthorized carrier is improved.
Meanwhile, the equipment for reserving resources can be updated continuously subsequently according to the resources and the service conditions, so that the problem of transmission delay when the service or control information with high priority needs to be transmitted but cannot compete for the resources is solved.
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 the relevant hardware through a program, and the program may be stored in a computer readable storage medium, such as a read-only memory, a magnetic or optical disk, and the like. Alternatively, all or part of the steps of the above embodiments may be implemented using one or more integrated circuits. Accordingly, each module/unit in the above embodiments may be implemented in the form of hardware, and may also be implemented in the form of a software functional module. The present application is not limited to any specific form of hardware or software combination.
The above description is only a preferred example of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (19)

1. A method for occupying an unlicensed carrier, comprising:
the method comprises the steps that a first device sends signaling for indicating unlicensed spectrum resource information to a second device;
the first device sends data to the second device or stops sending data according to the signaling for indicating the unlicensed spectrum resource information;
wherein the unlicensed spectrum resource information indicated by the first device in the signaling for indicating the unlicensed spectrum resource information includes one or more of the following:
a first device on an unlicensed spectrum occupies resources to send data time domain position information;
stopping sending data time domain position information in occupied resources by first equipment on the unlicensed spectrum;
newly adding and sending data time domain position information after the first equipment on the unlicensed spectrum occupies the resources;
the signaling for indicating the unauthorized spectrum resource information indicates that the first device on the unauthorized spectrum occupies the resource to send the data time domain position information and/or indicates a plurality of discontinuous moments when the first device on the unauthorized spectrum newly increases to send the data time domain position information after occupying the resource;
before the first device sends signaling for indicating the unlicensed spectrum resource information to the second device, the method further includes:
the first equipment determines that the first equipment occupies resources on the unlicensed spectrum to send data time domain position information and/or the first equipment on the unlicensed spectrum newly increases to send the data time domain position information after occupying resources according to the data HARQ timing relation and the maximum transmission times; or
The first equipment determines that the first equipment occupies resources on the unlicensed spectrum to send data time domain position information according to the result of operator/equipment negotiation and/or the first equipment on the unlicensed spectrum additionally sends data time domain position information after occupying resources; or
The first device determines one or more of resource occupation of the first device on the unlicensed spectrum to send data time domain position information, stop sending data time domain position information in occupied resources of the first device on the unlicensed spectrum, and newly add and send data time domain position information after the first device on the unlicensed spectrum occupies the resources according to the measurement result;
the second device receives the signaling for indicating the unauthorized spectrum resource information, and obtains the unauthorized spectrum resource use information through the signaling for indicating the unauthorized spectrum resource information;
and the second equipment reserves the unauthorized carrier resources at the corresponding moment according to the unauthorized spectrum resource use information or starts to compete for the resources at the moment of resource release.
2. The method of claim 1, wherein the first device sending signaling indicating unlicensed spectrum resource information to a second device indicates that:
the first device sends the unauthorized spectrum resource indication signaling to a second device through an air interface on an existing physical channel of an authorized carrier; or
The first equipment sends the unauthorized spectrum resource indication signaling to second equipment through an air interface on an unauthorized carrier wave public channel; or
And the first equipment sends the unauthorized spectrum resource indication signaling to the second equipment on an appointed carrier common channel through an air interface.
3. The method of claim 1, wherein the first device sends signaling for instructing the first device to occupy resources on the unlicensed spectrum for sending data time domain location information through a dedicated occupied signal or signaling; or
And the first equipment sends a signaling for indicating that the first equipment on the unlicensed spectrum newly sends data time domain position information after occupying resources through a special occupied signal or signaling.
4. The method of claim 1, wherein the first device indicates, via physical layer downlink control signaling (DCI), that the first device occupies resources on an unlicensed spectrum for transmitting data time domain location information; or
The first device indicates, through physical layer downlink control signaling (DCI) and/or relative to a starting offset value, that the first device newly transmits data time domain location information after occupying resources on the unlicensed spectrum.
5. The method of claim 4, wherein the first device indicates unlicensed spectrum resources information using a reserved bit state of a carrier indicator bit field (CIF) in the DCI; or
Indicating the unlicensed spectrum resource information in a bitmap mode; or
The unlicensed spectrum resource information is indicated by setting a dedicated bit in the DCI.
6. The method of claim 4, wherein the first device sending signaling indicating unlicensed spectrum resource information to the second device indicates that:
the first device is carried by a common search space of a physical downlink control channel PDCCH or an enhanced physical downlink control channel EPDCCH, and scrambles the signaling for indicating the unauthorized spectrum resource information by a special appointed radio network temporary identifier RNTI.
7. The method of claim 1, wherein the signaling for indicating the unlicensed spectrum resource information indicates a non-consecutive plurality of time instances, and wherein a time domain granularity of the indicated time instances is a subframe or an Orthogonal Frequency Division Multiplexing (OFDM) symbol.
8. The method of claim 1, wherein a time when the first device sends signaling indicating unlicensed spectrum resource information to the second device is M, and a time when the first device sends data according to the signaling indicating unlicensed spectrum resource information satisfies any one of the following conditions:
M+4+10*N、M+7+10*N、 M+6+10*N、M+4*N、N;
wherein N is an integer of 0 or more.
9. The method of claim 1, wherein the transmitting, by the first device, data to the second device according to the signaling for indicating the unlicensed spectrum resource information includes transmitting scheduled uplink and downlink data, or transmitting feedback information or information with high priority.
10. The method of claim 1,
the second device obtains the unlicensed spectrum resource usage information through the signaling for indicating the unlicensed spectrum resource information, and obtains the unlicensed spectrum resource usage information through the detected signal or the received feedback information.
11. A method for occupying an unlicensed carrier, the method comprising:
receiving end equipment receives a signaling used by a sending end for indicating unauthorized frequency spectrum resource information, and obtains unauthorized frequency spectrum resource use information from the signaling;
the receiving end equipment reserves the unauthorized carrier resources at the corresponding time according to the obtained unauthorized spectrum resource use information or starts to compete for the resources at the time of resource release;
the unlicensed spectrum resource information indicated in the signaling for indicating the unlicensed spectrum resource information includes one or more of the following:
sending end equipment occupies resources on an unlicensed spectrum to send data time domain position information;
sending end equipment stops sending data time domain position information in occupied resources on the unlicensed spectrum;
transmitting data time domain position information is newly added on the unlicensed spectrum after the transmitting terminal equipment occupies resources;
the signaling for indicating the unauthorized spectrum resource information indicates that the first device on the unauthorized spectrum occupies the resource to send the data time domain position information and/or indicates a plurality of discontinuous moments when the first device on the unauthorized spectrum newly increases to send the data time domain position information after occupying the resource;
the unlicensed spectrum resource information indicated in the signaling for indicating the unlicensed spectrum resource information is acquired by the sending end device in the following manner:
the sending end determines that sending end equipment occupies resources on the unlicensed spectrum to send data time domain position information and/or the sending end equipment newly adds the sending data time domain position information after occupying resources on the unlicensed spectrum according to the data HARQ timing relation and the maximum transmission times; or
The sending end equipment determines that the sending end equipment occupies resources on the unlicensed spectrum to send data time domain position information according to the result of operator/equipment negotiation and/or the sending end equipment on the unlicensed spectrum newly adds the data time domain position information after occupying resources; or
And the sending end equipment determines one or more of resource occupation of the sending end equipment on the unauthorized frequency spectrum to send data time domain position information, stopping sending of the data time domain position information in the occupied resource by the sending end equipment on the unauthorized frequency spectrum, and newly adding and sending the data time domain position information after the resource occupation by the sending end equipment on the unauthorized frequency spectrum according to the measurement result.
12. A method for occupying an unlicensed carrier, the method comprising:
receiving end equipment receives a signaling used by a sending end for indicating unauthorized frequency spectrum resource information, and obtains unauthorized frequency spectrum resource use information from the signaling;
the receiving end equipment reserves the unauthorized carrier resources at the corresponding time according to the obtained unauthorized spectrum resource use information or starts to compete for the resources at the time of resource release;
the unlicensed spectrum resource information indicated in the signaling for indicating the unlicensed spectrum resource information includes one or more of the following:
sending end equipment occupies resources on an unlicensed spectrum to send data time domain position information;
sending end equipment stops sending data time domain position information in occupied resources on the unlicensed spectrum;
transmitting data time domain position information is newly added on the unlicensed spectrum after the transmitting terminal equipment occupies resources;
the signaling for indicating the unauthorized spectrum resource information indicates that the first device on the unauthorized spectrum occupies the resource to send the data time domain position information and/or indicates a plurality of discontinuous moments when the first device on the unauthorized spectrum newly increases to send the data time domain position information after occupying the resource;
the unlicensed spectrum resource information indicated in the signaling for indicating the unlicensed spectrum resource information is acquired by the sending end device in the following manner:
the sending end determines that sending end equipment occupies resources on the unlicensed spectrum to send data time domain position information and/or the sending end equipment newly adds the sending data time domain position information after occupying resources on the unlicensed spectrum according to the data HARQ timing relation and the maximum transmission times; or
The sending end equipment determines that the sending end equipment occupies resources on the unlicensed spectrum to send data time domain position information according to the result of operator/equipment negotiation and/or the sending end equipment on the unlicensed spectrum newly adds the data time domain position information after occupying resources; or
And the sending end equipment determines one or more of resource occupation of the sending end equipment on the unauthorized frequency spectrum to send data time domain position information, stopping sending of the data time domain position information in the occupied resource by the sending end equipment on the unauthorized frequency spectrum, and newly adding and sending the data time domain position information after the resource occupation by the sending end equipment on the unauthorized frequency spectrum according to the measurement result.
13. The method of claim 12,
the receiving end equipment stops sending data time domain position information in occupied resources on the corresponding subframe monitoring unauthorized spectrum based on a predefined pattern relation between a process and the receiving time of the signaling, and/or newly adds the data time domain position information after the occupied resources on the unauthorized spectrum.
14. The method of claim 12, wherein the receiving end device receives a signaling indication used by a transmitting end to indicate unlicensed spectrum resource information, and wherein the signaling indication comprises:
the receiving end equipment receives the unauthorized spectrum resource indication signaling on the existing physical channel of the authorized carrier through an air interface; or
The receiving end equipment receives the unauthorized frequency spectrum resource indication signaling on an unauthorized carrier wave public channel through an air interface; or
And the receiving terminal equipment receives the unauthorized spectrum resource indication signaling on a convention carrier common channel through an air interface.
15. The method of claim 12, wherein the receiving end device receives, through a dedicated occupied signal or signaling, a signaling for instructing a signaling transmitting end on an unlicensed spectrum to occupy a resource for transmitting data time domain location information; or
The receiving end equipment receives a signaling for indicating that a signaling sending end on an unauthorized frequency spectrum newly adds and sends data time domain position information after occupying resources through a special occupied signal or signaling.
16. The method of claim 12, wherein the receiving end device obtains time domain location information of data transmission by a signaling sending end occupying resource on an unlicensed spectrum through physical layer downlink control signaling (DCI); or
The receiving end equipment obtains the time domain position information of the newly added sending data after the signaling sending end on the unlicensed spectrum occupies the resources through a physical layer downlink control signaling (DCI) and/or relative to the initial offset value.
17. The method of claim 16, wherein the receiving end device obtains the unlicensed spectrum resource information through a reserved bit state of a carrier indicator bit field (CIF) in the DCI; or
Obtaining unauthorized spectrum resource information in a bitmap mode; or
The unlicensed spectrum resource information is obtained by setting a dedicated bit in the DCI.
18. A transmitting end device in the unlicensed carrier occupying method according to any one of claims 1 to 10, wherein the device includes:
the signaling sending module is used for sending a signaling for indicating the unauthorized frequency spectrum resource information to the receiving terminal equipment;
the data sending module sends data to the receiving end equipment or stops sending the data according to the signaling for indicating the unauthorized spectrum resource information;
the unlicensed spectrum resource information indicated by the sending-end device in the signaling for indicating the unlicensed spectrum resource information includes one or more of the following:
sending end equipment occupies resources on an unlicensed spectrum to send data time domain position information;
sending end equipment stops sending data time domain position information in occupied resources on the unlicensed spectrum;
transmitting data time domain position information is newly added on the unlicensed spectrum after the transmitting terminal equipment occupies resources;
the signaling for indicating the unauthorized spectrum resource information indicates that the first device on the unauthorized spectrum occupies the resource to send the data time domain position information and/or indicates a plurality of discontinuous moments when the first device on the unauthorized spectrum newly increases to send the data time domain position information after occupying the resource;
the information acquisition module is used for determining that the sending end equipment on the unlicensed spectrum occupies resources to send data time domain position information and/or newly adds and sends data time domain position information after the sending end equipment on the unlicensed spectrum occupies resources according to the data HARQ timing relationship and the maximum transmission times before sending a signaling for indicating the unlicensed spectrum resource information to the receiving end equipment; or
The sending end equipment determines that the sending end equipment occupies resources on the unlicensed spectrum to send data time domain position information according to the result of operator/equipment negotiation and/or the sending end equipment on the unlicensed spectrum newly adds the data time domain position information after occupying resources; or
The sending end equipment determines one or more of resource occupation of the sending end equipment on the unlicensed spectrum to send data time domain position information, stopping sending of the data time domain position information in the occupied resource by the sending end equipment on the unlicensed spectrum, and newly adding the data time domain position information after the resource occupation by the sending end equipment on the unlicensed spectrum according to the measurement result;
the receiving end device is configured to receive the signaling for indicating the unlicensed spectrum resource information, and obtain the usage information of the unlicensed spectrum resource through the signaling for indicating the unlicensed spectrum resource information; and reserving the unauthorized carrier resources at the corresponding moment according to the unauthorized spectrum resource use information, or beginning to compete for the resources at the moment of resource release.
19. A receiving end device in the unlicensed carrier occupying method according to any one of claims 11 to 17, wherein the device includes:
the signaling receiving and analyzing module is used for receiving a signaling for indicating the unauthorized spectrum resource information and analyzing the signaling for indicating the unauthorized spectrum resource information to obtain the unauthorized spectrum resource use information;
the signaling processing module reserves the unauthorized carrier resources at the corresponding moment according to the unauthorized spectrum resource use information analyzed and obtained by the signaling receiving and analyzing module, or starts to compete for the resources at the moment of resource release;
the unlicensed spectrum resource information indicated in the signaling for indicating the unlicensed spectrum resource information includes one or more of the following:
sending end equipment occupies resources on an unlicensed spectrum to send data time domain position information;
sending end equipment stops sending data time domain position information in occupied resources on the unlicensed spectrum;
transmitting data time domain position information is newly added on the unlicensed spectrum after the transmitting terminal equipment occupies resources;
the signaling for indicating the unauthorized spectrum resource information indicates that the first device on the unauthorized spectrum occupies the resource to send the data time domain position information and/or indicates a plurality of discontinuous moments when the first device on the unauthorized spectrum newly increases to send the data time domain position information after occupying the resource;
the unlicensed spectrum resource information indicated in the signaling for indicating the unlicensed spectrum resource information is acquired by the sending end device in the following manner:
the sending end determines that sending end equipment occupies resources on the unlicensed spectrum to send data time domain position information and/or the sending end equipment newly adds the sending data time domain position information after occupying resources on the unlicensed spectrum according to the data HARQ timing relation and the maximum transmission times; or
The sending end equipment determines that the sending end equipment occupies resources on the unlicensed spectrum to send data time domain position information according to the result of operator/equipment negotiation and/or the sending end equipment on the unlicensed spectrum newly adds the data time domain position information after occupying resources; or
And the sending end equipment determines one or more of resource occupation of the sending end equipment on the unauthorized frequency spectrum to send data time domain position information, stopping sending of the data time domain position information in the occupied resource by the sending end equipment on the unauthorized frequency spectrum, and newly adding and sending the data time domain position information after the resource occupation by the sending end equipment on the unauthorized frequency spectrum according to the measurement result.
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