WO2016180098A1 - 一种多信道占用方法及装置 - Google Patents

一种多信道占用方法及装置 Download PDF

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Publication number
WO2016180098A1
WO2016180098A1 PCT/CN2016/078348 CN2016078348W WO2016180098A1 WO 2016180098 A1 WO2016180098 A1 WO 2016180098A1 CN 2016078348 W CN2016078348 W CN 2016078348W WO 2016180098 A1 WO2016180098 A1 WO 2016180098A1
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Prior art keywords
carrier
preemption
carriers
resource
reservation
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PCT/CN2016/078348
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English (en)
French (fr)
Inventor
毕峰
苟伟
戴博
赵亚军
彭佛才
李新彩
杨玲
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中兴通讯股份有限公司
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Publication of WO2016180098A1 publication Critical patent/WO2016180098A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
    • H04W74/0816—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA] with collision avoidance

Definitions

  • This document relates to, but is not limited to, the field of mobile wireless communications, and in particular, to a method and apparatus for a multi-channel occupancy of a base station (or a cell, or an access node) in an unlicensed carrier, a base station, and a terminal.
  • LTE Rel-13 In the evolution of LTE, in September 2014, the LTE Rel-13 version began to be researched.
  • One of the important items in Rel-13 is that the LTE system works with unlicensed carriers. This technology will enable LTE systems to use existing unlicensed carriers, greatly increasing the potential spectrum resources of LTE systems, enabling LTE systems to achieve lower spectrum costs.
  • Machine to Machine (M2M) business Vehicle to vehicle (V2V) business.
  • V2V Vehicle to vehicle
  • the unlicensed carrier may be an important evolution direction of the wireless communication system, but there are also many problems. For example, there will be various wireless systems in the unlicensed carrier. The system is difficult to coordinate with each other and the interference is serious.
  • WLAN Wireless Local Area Network
  • WIFI Wireless Fidelity
  • MMAC Multi-channel MAC, Medium Access Control divides time into an ATFM (Announcement Traffic Indication Message) channel negotiation window and a data window.
  • ATFM Announcement Traffic Indication Message
  • PCL Preferable Channel List
  • CHMA Channel Hopping Multiple Access
  • SSCH Slotd Seeded Channel Hopping
  • DCA Dynamic Channel Allocation
  • the control channel resolves channel assignments and collisions, and the data channel transmits data. It has CUL (Channel Use List) and FCL (Free Channel List).
  • CUL Channel Use List
  • FCL Free Channel List
  • Node A transmits RTS (Request To Send) with FCL
  • Node B compares its own CUL after receiving it, selects an available channel, and transmits CTS (Clear To Send) to node A and surrounding nodes.
  • the PCAM Primary Channel Assignment based MAC introduces a pre-allocated main channel (fixed, and other nodes also know each other), the second channel is a data channel (not fixed), and the third channel is a broadcast channel.
  • the transmitting end switches to the primary channel of the receiving end for communication; when the same, the direct communication is possible; when the receiving end uses the broadcast channel as the primary channel, the receiving end broadcast channel is unavailable.
  • the transmitting end switches to the primary channel of the receiving end for communication.
  • the disadvantage is that there is only one at the same time.
  • the channel is working; for the latter two modes with multiple radio multiple channels, the disadvantage is mainly to introduce a dedicated channel, and the efficiency is reduced.
  • LAA Licensed Assisted Access
  • ED Electronic Detection
  • CCA Carrier Channel Assessment
  • eCCA Enhanced Clear Channel Assessment
  • the embodiments of the present invention provide a method and a device for occupying multiple channels, a base station, and a terminal, which can prevent other stations from preempting unauthorized carriers.
  • the embodiment of the invention provides a method for occupying multiple channels, including:
  • the reservation occupies one or more carriers.
  • the above method also has the following features:
  • Performing carrier preemption on the contention resource includes: determining a total resource that is available, dividing a first specified resource from the available total resources, and performing carrier preemption on the first specified resource;
  • the reservation occupies one or more carriers, including: after successful preemption, the reservation occupies one or more carriers of the total resources except the first designated resource.
  • the reservation occupies one or more carriers of the total resources except the first designated resource, including:
  • the foregoing method further has the following feature: the performing on the first designated resource In the process of wave preemption, it also includes:
  • the first designated resource is already occupied, re-determining the available total resources, re-dividing the second designated resource from the re-determined available total resources, and performing carrier preemption on the second designated resource. ;
  • the reservation occupies one or more of the re-determined available total resources except the second designated resource.
  • the above method also has the following features:
  • Performing carrier preemption on the contention resource includes: determining the total resources available, dividing the available total resources into multiple carrier groups, each carrier group including one or more carriers, and preempting one or more carrier groups ;
  • the reservation occupies one or more carriers, including:
  • the reservation occupies all the carriers in the preempted carrier group.
  • the foregoing method further has the following feature: the determining the total resources available, and dividing the available total resources into multiple carrier groups includes:
  • the available total resources are divided into a plurality of carrier groups according to the carrier occupancy information.
  • the foregoing method further has the following feature: in the process of preempting the carrier group,
  • the reservation occupies all the carriers in the preempted carrier group.
  • carrier occupation information in the same format as that transmitted by the WIFI station, where the carrier occupation information includes one of frequency resource information and occupation time information.
  • the foregoing method further has the following feature: the one or more carriers are reserved, including:
  • the scheduling one or more carriers further includes:
  • the carrier occupancy information including one of frequency resource information and occupancy duration information.
  • the embodiment of the invention further provides a multi-channel occupation device, which comprises:
  • the preemption module is set to perform carrier preemption on the contention resources
  • the reservation occupies one or more carriers.
  • the above device also has the following features:
  • the preemption module is configured to implement carrier preemption on a contention resource by determining a total resource that is available, and dividing a first specified resource from the available total resources, and performing the first specified resource on the first designated resource.
  • the reservation module is configured to: after the successful preemption is implemented, the reservation occupies one or more carriers: after the preemption module successfully preempts, the reservation occupies resources other than the first designated resource in the total resource. One or more carriers in .
  • the above device further has the following features:
  • a receiving module configured to receive carrier occupation information transmitted by the WIFI station
  • the reservation module is configured to: perform reservation to occupy one or more carriers in the total resource other than the first designated resource: reserve the total resource according to the carrier occupation information One or more carrier resources among the resources other than the first designated resource.
  • the above device also has the following features:
  • the preemption module is further configured to: during the process of performing carrier preemption on the first designated resource, if the first designated resource is already occupied, re-determining the available total resources, from the re-determined available The second designated resource is re-divided into the total resource, and the carrier preemption is performed on the second designated resource. After the successful preemption, the reservation occupies the resource other than the second designated resource among the re-determined available total resources.
  • One or more carriers are carriers.
  • the above device also has the following features:
  • the preemption module is configured to implement carrier preemption on a contention resource by determining a total resource that is available, and dividing the available total resource into multiple carrier groups, each carrier One or more carriers are included in the group to preempt one or more carrier groups;
  • the reservation module is configured to occupy one or more carriers after the successful preemption is achieved by: after the preemption module successfully preempts, the reservation occupies all the carriers in the preempted carrier group.
  • the above device further has the following features: further comprising:
  • a receiving module configured to receive carrier occupation information transmitted by the WIFI station
  • the preemption module is configured to determine, by using the following manner, that the available total resources are determined, and the available total resources are divided into multiple carrier groups: the available total resources are divided into multiple carriers according to the carrier occupation information. Group of.
  • the above device also has the following features:
  • the preemption module is configured to preempt the carrier group. If the carrier group to be preempted is occupied, the available carrier group is re-determined, and the preemption is performed in the available carrier group. All carriers in the carrier group are preempted.
  • the above device further has the following features: further comprising:
  • the transmitting module is configured to: when the preemption module reserves the occupation of one or more carriers, transmit carrier occupation information in the same format as that transmitted by the WIFI station, where the carrier occupation information includes at least one of frequency resource information and occupation time information. .
  • the above device also has the following features:
  • the reservation module is configured to realize that the reservation occupies one or more carriers by detecting whether the carrier occupied by the reservation is occupied, and if not occupied, successfully occupying the carrier occupied by the reservation, if it is occupied, Then the carrier occupied by the reservation is abandoned.
  • the above device further has the following features: further comprising:
  • the broadcast module is configured to: when the preemption module reserves occupy one or more carriers, broadcast carrier occupation information, where the carrier occupation information includes one of frequency resource information and occupation time information.
  • the embodiment of the invention further provides a base station, which comprises the above multi-channel occupation device.
  • An embodiment of the present invention further provides a terminal, including the foregoing multi-channel occupation device.
  • the embodiments of the present invention provide a method and a device for occupying multiple channels, a base station, and a terminal, which can well prevent other stations from preempting unauthorized carriers, and can occupy multiple unlicensed carriers at the same time, thereby improving transmission efficiency. Synchronization, measurement and other effects.
  • FIG. 1 is a flowchart of a method for occupying multiple channels according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a method for occupying multiple channels according to Embodiment 1 of the present invention
  • FIG. 3 is a flowchart of a method for occupying multiple channels according to Embodiment 2 of the present invention.
  • FIG. 5 is a flowchart of a method for occupying multiple channels according to Embodiment 4 of the present invention.
  • FIG. 6 is a flowchart of a method for occupying multiple channels according to Embodiment 5 of the present invention.
  • FIG. 7 is a schematic diagram of a multi-channel occupation device according to an embodiment of the present invention.
  • FIG. 1 is a flowchart of a multi-channel occupation method according to an embodiment of the present invention.
  • the method is applicable to any communication node of a base station, a terminal, a relay station, and the like. As shown in FIG. 1 , the method in this embodiment includes the following steps:
  • Step S11 Perform carrier preemption on the contention resources.
  • Step S12 After successful preemption, the reservation occupies one or more carriers.
  • step S11 includes:
  • Determining the total resources available dividing the first specified resource from the available total resources, performing carrier preemption on the first specified resource, for example, dividing the available total resources into fixed contention resources and subscription occupation Resources, preempting on the fixed competitive resources;
  • Step S12 includes:
  • the reservation occupies one or more carriers of the total resources except the first designated resource, where the reserved occupied carrier refers to: the broadcast reservation occupies the information of the carrier to avoid The carrier continues to be preempted, and after determining that the carrier is idle, the carrier is occupied.
  • the fixed contention resource may include one or more carriers, and the reserved occupied resources may include one or more carriers.
  • step S11 includes:
  • Determining the total resources available dividing the available total resources into multiple carrier groups, each carrier group including one or more carriers, preempting one or more carrier groups;
  • Step S12 includes:
  • the reservation occupies all the carriers in the preempted carrier group.
  • the embodiment of the invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the above method.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • Step 101 the LAA site determines the total resource R available
  • the LAA site in this embodiment may be any communication node such as a base station, a terminal, a relay station, or the like.
  • Step 102 the LAA site divides the available total resources R into LBT (Listen Before Talk) resources R1 and reservation occupied resources R2;
  • the maximum available spectrum resource is 200 MHz
  • the fixed resource R1 is 20 MHz, which is used for preemption of all LAA sites (LAA1 site and LAA2 site). Note that R1 can still be used by WIFI, so the selection of R1 is as far as possible. Avoid the carrier (carrier) where WIFI is active.
  • Step 103 the LAA site competes on R1, if the preemption is successful, then proceeds to step 104; if the preemption is successful, then proceeds to step 106;
  • the LAA1 station preempts the system bandwidth of 5MHz/carrier. Except for R1, there are a total of 36 available carriers, and it is expected to preempt 40MHz spectrum resources.
  • the LAA2 station preempts the system bandwidth of 20MHz/carrier, except for R1, there are a total of 9 available carriers. It is expected to preempt 60MHz.
  • Step 104 The LAA1 station performs preemption at the R1 position. After the preemption is successful, the 4 spectrum resources of the 5 MHz/carrier are reserved at the R2 position, and the reservation occupation information is broadcasted, and the LAA2 station does not continue to preempt on the four carriers.
  • the LAA1 station performs ED, CCA/eCCA detection on these 4 carriers.
  • the LAA1 station detects whether there are other sites on the four carriers, and there may be a case where the WIFI site is in use. If not used, the LAA1 site is successfully occupied; if it is used, the LAA1 site abandons the used carrier and the process ends.
  • Step 106 If the LAA2 site performs preemption and preemption at the R1 location, the LAA2 site has two options: select 1, wait for the R1 resource to be released, and re-execute the above process, but wait for the delay to be too large; select 2, according to the broadcast reservation occupation information. , to determine the total resources available, return to step 101, as follows:
  • the LAA2 station performs preemption at the R1_new position. After successful preemption, it reserves two spectrum resources of 20MHz/carrier in the R2_new position and broadcasts the reservation occupation information. Other LAA stations will not continue to preempt on these two carriers.
  • the LAA2 station performs ED and CCA/eCCA detection on these two carriers to see if there is a possibility that the WIFI site is in use. If the carrier is not occupied, the LAA2 site is successfully occupied; if it is already occupied, the LAA2 station abandons the used carrier.
  • LAA sites and LAA2 sites have the same process.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • Step 201 the LAA site determines the total resource R available
  • Step 202 the LAA station divides the available total resources R into carrier groups G;
  • G1 corresponds to 1 carrier 20MHz
  • G2 corresponds to 2 carriers 2*20MHz
  • G3 corresponds to 3 carriers 3*20MHz
  • G4 corresponds to 4 carriers 4*20MHz
  • G1-G4 totals 200MHz . It is used for preemption of all LAA sites (LAA1 site and LAA2 site). Note that G1-G4 can still be used by WIFI, so the choice of G1-G4 should avoid the WIFI active carrier.
  • the LAA1 site is expected to preempt 40MHz spectrum resources
  • the LAA2 site is expected to preempt 60MHz spectrum resources.
  • step 203 the LAA station competes on the corresponding carrier group G. If the preemption is successful, the process proceeds to step 204. If the preemption is successful, the process proceeds to step 206.
  • Step 204 The LAA1 station is expected to preempt the 40 MHz spectrum resource, and preemptively preempts it on G2. After successfully preempting, the reservation occupies the 40 MHz spectrum resource and broadcasts the reservation occupation information, and the LAA2 site does not continue to preempt on G2.
  • the LAA1 site performs ED, CCA/eCCA detection on G2.
  • the LAA1 site detects whether other sites are used on G2, and there may be cases where the WIFI site is in use. If not used, the LAA1 site is successfully occupied; if it is used, the LAA1 site abandons the used carrier and the process ends.
  • Step 206 the LAA2 site has two options:
  • the LAA2 site is expected to preempt 60MHz spectrum resources and preemptively preempt it on G3. After successful preemption, the reservation occupies the 60MHz spectrum resource and broadcasts the reservation occupation information. Other LAA sites will not continue to preempt on G3.
  • the LAA2 site performs ED and CCA/eCCA detection on the G3 to see if there is a possibility that the WIFI site is in use. If not used, the LAA2 site is successfully occupied; if used, the LAA2 site discards the used carrier.
  • LAA sites and LAA2 sites have the same process.
  • Step 301 The LAA site determines the total resource R available
  • Step 302 The LAA site divides the available total resources R into LBT resources R1 and reserved occupied resources R2;
  • the maximum available spectrum resource is 100 MHz
  • the fixed resource R1 is 5 MHz, which is used for preemption of all LAA sites (LAA1 site and LAA2 site). Note that R1 can still be used by WIFI, so the selection of R1 is as far as possible. Avoid the active carrier of WIFI.
  • Step 303 The LAA station competes on R1. If the preemption is successful, the process proceeds to step 304. If the preemption is successful, the process proceeds to step 305.
  • the LAA1 station preempts the system bandwidth of 5MHz/carrier. Except for R1, there are a total of 19 available carriers, and it is expected to preempt 20MHz spectrum resources.
  • the LAA2 station preempts the system bandwidth of 5MHz/carrier, except for R1, there are a total of 19 available carriers. It is expected to seize 40MHz.
  • Step 304 The LAA1 station performs preemption at the R1 position. After the preemption is successful, the carrier occupancy information transmitted by the WIFI station is optionally received, and according to the information, three 5 MHz/carrier spectrum resources are reserved and broadcasted at the R2 location. If the reservation information is reserved, the LAA2 station will not continue to preempt on the three carriers. The optional transmission and the carrier occupancy information of the same format transmitted by the WIFI station will not continue to be preempted on the three carriers. .
  • the LAA1 station performs ED, CCA/eCCA detection on these three carriers.
  • the LAA1 station detects whether there are other sites on the three carriers, and there may be a case where the WIFI site is in use. If not used, the LAA1 site is successfully occupied; if it is used, the LAA1 site abandons the used carrier and the process ends.
  • Step 306 the LAA2 site has two options: select 1, wait for the R1 resource to be released, and re-execute the above process, but wait for the delay to be too large; select 2, and re-determine the available total resources according to the broadcast reservation occupation information, and return to step 101. ,as follows:
  • the LAA2 station performs preemption at the R1_new location. After successful preemption, the UE receives the carrier occupation information transmitted by the WIFI station, and reserves 7 spectrum resources of 5 MHz/carrier in the R2_new location according to the information, and broadcasts the reservation occupation information. The other LAA stations will not continue to preempt on these 7 carriers. The optional transmission and the carrier occupancy information of the same format transmitted by the WIFI station will not continue to be preempted on the 7 carriers.
  • the LAA2 station performs ED and CCA/eCCA detection on these 7 carriers to see if there is a possibility that the WIFI station is in use. If not used, the LAA2 site is successfully occupied; if used, the LAA2 site discards the used carrier.
  • LAA sites and LAA2 sites have the same process.
  • Embodiment 4 is a diagrammatic representation of Embodiment 4:
  • Step 401 the LAA site determines the total resource R available
  • Step 402 the LAA station divides the available total resources R into carrier groups G;
  • the currently available maximum spectrum resource is 100 MHz, optionally receiving carrier occupancy information transmitted by the WIFI station, and dividing the carrier group according to the information, wherein G1 corresponds to 1 carrier 5 MHz, and G2 corresponds to 2 carriers 2*5 MHz. G3 corresponds to 3 carriers 3*5MHz, G4 corresponds to 4 carriers 4*5MHz, G5 corresponds to 5 carriers 5*5MHz, G6 corresponds to 5 carriers 5*5MHz, and G1...G6 totals 100MHz. It is used for preemption of all LAA sites (LAA1 site and LAA2 site). Note that G1-G6 can still be used by WIFI, so G1-G6 should try to avoid the WIFI active carrier.
  • the LAA1 site is expected to preempt 10MHz spectrum resources, and the LAA2 site is expected to preempt 20MHz spectrum resources.
  • Step 403 the LAA station competes on the corresponding carrier group G, and the LAA station preempts one carrier group. If the preemption is successful, the process proceeds to step 404; if the preemption is successful, the process proceeds to step 406;
  • the LAA1 station is expected to preempt the 10 MHz spectrum resource, and preemptively preempts it on the G2.
  • the reservation occupies the 10 MHz spectrum resource and broadcasts the reservation occupation information.
  • the LAA2 site will not continue to preempt on G2.
  • the optional transmitter and WIFI site will transmit the same format of carrier occupancy information, and the WIFI site will not continue to preempt on G2.
  • the LAA1 site performs ED, CCA/eCCA detection on G2.
  • the LAA1 site detects whether other sites are used on G2, and there may be cases where the WIFI site is in use. If not used, the LAA1 site is successfully occupied; if it is used, the LAA1 site abandons the used carrier and the process ends.
  • Step 406 the LAA2 site has two options: select 1, wait for the G2 resource to be released, and re-execute the above process, but wait for the delay to be too large; select 2, and re-determine the available carrier group G according to the broadcast reservation occupation information, optional Receiving carrier occupation information transmitted by the WIFI station, and dividing the carrier group G according to the information, and then returning to step 403, as follows:
  • the LAA2 site is expected to preempt 20MHz spectrum resources and preemptively preempt it on G4. After successful preemption, the reservation occupies the 20MHz spectrum resource and broadcasts the reservation occupation information. Other LAA sites will not continue to preempt on G4. Optional transmission The WIFI site will not continue to preempt on G2 if it uses the same format of carrier occupancy information transmitted by the WIFI site.
  • the LAA2 site performs ED and CCA/eCCA detection on the G4 to see if there is a possibility that the WIFI site is in use. If not used, the LAA2 site is successfully occupied; if used, the LAA2 site discards the used carrier.
  • LAA sites and LAA2 sites have the same process.
  • the length of time occupied can also be agreed as follows:
  • G1 corresponds to 1 carrier 5 MHz
  • G2 corresponds to 2 carriers 2*5 MHz
  • G3 corresponds to 3 carriers 3*5 MHz
  • G4 corresponds to 4 carriers 4*5 MHz
  • G5 corresponds to 5 carriers.
  • G6 corresponds to 5 carriers 5*5MHz
  • G1-G6 total 100MHz
  • the LAA1 station is expected to preempt 10MHz spectrum resources, and preemptively preempts the G2.
  • the reservation occupies the 10MHz spectrum resource and broadcasts the reservation occupation information.
  • the agreement occupies 10ms, and the LAA2 site does not occupy the lease duration.
  • Preemption on the intrinsic G2 (after more than the agreed duration, the LAA2 site will continue to preempt on G2), optional transmission
  • the WIFI site will not continue to preempt on G2 if it uses the same format of carrier occupancy information transmitted by the WIFI site.
  • step 406 the LAA2 station is expected to preempt the 20 MHz spectrum resource, and the preemption is preempted on the G4.
  • the reservation occupies the 20 MHz spectrum resource and broadcasts the reservation occupation information.
  • the agreement occupies 10 ms, and the other LAA sites will not continue on the G4. Preemption.
  • Embodiment 5 is a diagrammatic representation of Embodiment 5:
  • Step 501 the LAA site determines the total resource R available
  • Step 502 the LAA station divides the available total resources R into carrier groups G;
  • the currently available maximum spectrum resource is 100 MHz, optionally receiving carrier occupancy information transmitted by the WIFI station, and dividing the carrier group according to the information, wherein G1 corresponds to 1 carrier 5 MHz, and G2 corresponds to 2 carriers 2*5 MHz. G3 corresponds to 3 carriers 3*5MHz, G4 corresponds to 4 carriers 4*5MHz, G5 corresponds to 5 carriers 5*5MHz, G6 corresponds to 5 carriers 5*5MHz, and G1...G6 totals 100MHz. It is used for preemption of all LAA sites (LAA1 site and LAA2 site). Note that G1-G6 can still be used by WIFI, so G1-G6 should try to avoid the WIFI active carrier.
  • the LAA1 site is expected to preempt 30MHz spectrum resources, and the LAA2 site is expected to preempt 20MHz spectrum resources.
  • the dividing the carrier group according to the carrier occupation information sent by the received WIFI station includes: avoiding the carrier involved in the occupation information, determining an available total carrier resource after removing the evaded carrier, and performing carrier on the available total carrier resource Grouping
  • Step 503 the LAA station competes on the corresponding carrier group G, and the LAA station preempts multiple carrier groups. If the preemption is successful, the process proceeds to step 504; if the preemption is successful, the process proceeds to step 506;
  • the LAA1 station is expected to preempt the 30 MHz spectrum resource, and preemptively preempts the G5 and G1.
  • the reservation occupies the 10 MHz spectrum resource and broadcasts the reservation occupation information, and the LAA2 site does not continue to perform on the G5 and G1.
  • Preemption, optional transmission and carrier occupancy information of the same format transmitted by the WIFI site, the WIFI site will not continue on G5 and G1 Preemption.
  • the LAA1 site performs ED, CCA/eCCA detection on G5 and G1.
  • the LAA1 site detects whether other sites are used on G5 and G1, and there may be cases where the WIFI site is in use. If not used, the LAA1 site is successfully occupied; if it is used, the LAA1 site abandons the used carrier and the process ends.
  • Step 506 the LAA2 site has two options: select 1, wait for the release of the G5 and G1 resources, and re-execute the above process, but wait for the delay to be too large; select 2, and re-determine the available carrier group G according to the broadcast reservation occupation information.
  • select 1 wait for the release of the G5 and G1 resources, and re-execute the above process, but wait for the delay to be too large
  • select 2 re-determine the available carrier group G according to the broadcast reservation occupation information.
  • the selected carrier occupation information transmitted by the WIFI station is selected, and the carrier group G is divided according to the information, and then returns to step 503, as follows:
  • the LAA2 site is expected to preempt 20MHz spectrum resources and preemptively preempt it on G4. After successful preemption, the reservation occupies the 20MHz spectrum resource and broadcasts the reservation occupation information. Other LAA sites will not continue to preempt on G4. Optional transmission The WIFI site will not continue to preempt on the G4 if it uses the same format of carrier occupancy information transmitted by the WIFI site.
  • the LAA2 site performs ED and CCA/eCCA detection on the G4 to see if there is a possibility that the WIFI site is in use. If not used, the LAA2 site is successfully occupied; if used, the LAA2 site discards the used carrier.
  • LAA sites and LAA2 sites have the same process.
  • FIG. 7 is a schematic diagram of a multi-channel occupation device according to an embodiment of the present invention. As shown in FIG. 7, the device in this embodiment includes:
  • the preemption module is set to perform carrier preemption on the contention resources
  • the reservation occupies one or more carriers.
  • the preemption module is configured to implement carrier preemption on a contention resource by determining a total resource that is available, and dividing the first specified resource from the available total resource. Performing carrier preemption on the first designated resource;
  • the reservation module is configured to reserve one or more carriers in the total resources except the first designated resource after the preemption module successfully preempts.
  • the apparatus may further include
  • a receiving module configured to receive carrier occupation information transmitted by the WIFI station
  • the reservation module is configured to reserve one or more carrier resources of the total resources other than the first designated resource according to the carrier occupation information.
  • the preemption module is further configured to: during the process of performing carrier preemption on the first designated resource, if the first designated resource is already occupied, re-determining the available total resources, Re-dividing the second designated resource from the re-determined available total resources, and performing carrier preemption on the second designated resource.
  • the preemption module is configured to implement carrier preemption on a contention resource by determining a total resource that is available, and dividing the available total resource into multiple carrier groups, each One or more carriers are included in the carrier group to preempt one or more carrier groups;
  • the reservation module is configured to reserve all carriers in the preempted carrier group after the preemption module successfully preempts.
  • the preemption module is configured to implement a preemptive carrier group by re-determining an available carrier group if the carrier group to be preempted is occupied, in the available carrier group. Preemption.
  • the apparatus may further include:
  • a receiving module configured to receive carrier occupation information transmitted by the WIFI station
  • the preemption module is configured to divide the available total resources into multiple carrier groups according to the carrier occupation information.
  • the apparatus may further include:
  • a transmitting module configured to transmit carrier occupation information in the same format as that transmitted by the WIFI station, where the carrier occupation information includes at least one of frequency resource information and occupied duration information.
  • the reservation module is configured to implement reservation by occupying one or more carriers by detecting whether a carrier occupied by the reservation has been used, and if not used, successfully occupying the reservation occupation The carrier, if it has been used, discards the carrier occupied by the reservation.
  • the apparatus may further include:
  • the broadcast module is configured to broadcast carrier occupation information, and the carrier occupation information includes at least one of frequency resource information and occupied duration information.
  • the embodiment of the invention further provides a base station, which comprises the above multi-channel occupation device.
  • the embodiment of the invention further provides a terminal, comprising the multi-channel occupation device described above.
  • the foregoing technical solution can well prevent the problem that other stations preempt the unlicensed carrier, and can occupy multiple unlicensed carriers at the same time, thereby achieving the effects of improving transmission efficiency, synchronization, and measurement.

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Abstract

一种多信道占用方法及装置、基站及终端，该方法包括：在竞争资源上进行载波抢占；成功抢占后，预约占用一个或多个载波。上述技术方案能够很好地防止其他站点抢占非授权载波的问题，并且同时可以占用多个非授权载波，达到提高传输效率、同步、测量等效果。

Description

一种多信道占用方法及装置 技术领域
本文涉及但不限于移动无线通信领域，特别是涉及基站(或小区、或接入节点)在非授权载波中对应的多信道占用方法及装置、基站及终端。
背景技术
在LTE的演进过程中，在2014年9月份，LTE Rel-13版本开始立项研究，其中Rel-13中一个重要的立项就是LTE系统使用非授权载波工作。这项技术将使得LTE系统能够使用目前存在的非授权载波，大大提升LTE系统的潜在频谱资源，使得LTE系统能够获得更低的频谱成本。
非授权载波具有下面的特征：
1、免费或低费用：不需要购买非授权频谱，频谱资源为零成本。
2、准入要求低，成本低：个人、企业都可以参与部署，设备商的设备可以任意部署。
3、共享资源：多个不同系统都运营其中时，或者同一系统的不同运营商运营其中时，可以考虑一些共享资源的方式，提高频谱效率。
4、无线接入技术多：可以使用不同的通信标准，但协作难度大，网络拓扑多样。
5、无线接入站点多：用户数量大，但协作难度大，集中式管理开销大。
6、应用多：多种业务可以在其中运营，例如：机器到机器(Machine to machine，简称M2M)业务、汽车到汽车(Vehicle to vehicle，简称V2V)业务。
上述特征决定了非授权载波可能是无线通信系统一个重要的演进方向，但是同时也存在诸多问题，例如：非授权载波中将存在各种各样的无线系 统，彼此之间难于协调，干扰严重。
目前WLAN(Wireless Local Area Network，无线局域网络)和WIFI(Wireless Fidelity，无线保真)系统中存在的有单射频多信道、多射频多信道通信工作方式，包括：
MMAC(Multi-channel MAC，多信道MAC(Medium Access Control，媒体接入控制))把时间分为ATIM(Announcement Traffic Indication Message，广播传输指示消息)信道协商窗口和data(数据)窗口。在ATIM窗口使用PCL(Preferable Channel List，优先信道表)协商信道使用，在data窗口发射数据。
CHMA(Channel Hopping Multiple Access，信道跳跃多址接入)所有节点都遵守公共跳变表，有数据传输的节点停下来不在跳变，传输后再进入跳变。
SSCH(Slotted Seeded Channel Hopping，分割插入信道跳跃)把可用的频域资源进行频分，每隔一定时间进行跳变，各自维护信道跳变表，并及时传输更新后的跳变表。
DCA(Dynamic Channel Allocation，动态信道分配)有专用的控制信道，和数据传输信道。控制信道解决信道分配和冲突，数据信道传输数据。具有CUL(Channel Use List，信道使用表)、FCL(Free Channel List，空闲信道表)。例如节点A发射RTS(Request To Send，请求发送)附带FCL，节点B收到后对比自己的CUL，选择可用的信道，并发射CTS(Clear To Send，清除发送)给节点A及周围节点。
PCAM(Primary Channel Assignment based MAC，基于MAC主信道分配)引入事先分配好的主信道(固定，且其他节点也互相知道)，第二信道为数据信道(不固定)，第三信道为广播信道。当发射端和接收端的主信道不同时，发射端切换到接收端的主信道上进行通信；当相同时可直接通信；当接收端使用广播信道作为主信道时，此时接收端广播信道不可用，而发射端切换到接收端的主信道上进行通信。
对于前三种具有单射频多信道的方式，其缺点主要是同一时刻仅有一个 信道在工作；对于后两种具有多射频多信道的方式，其缺点主要是引入专用的信道，效率降低。而对于LAA(Licensed Assisted Access，授权协助接入)站点在使用非授权载波前均需要进行ED(Energy Detection，能量检测)，或CCA(Clear Channel Assessment，空闲信道评估)或eCCA(Enhanced Clear Channel Assessment，增强的空闲信道评估)过程，占用成功也使用该非授权载波，但是关于多个信道(即多个载波)的占用，目前仍没有有效地解决方案。
发明内容
以下是对本文详细描述的主题的概述。本概述并非是为了限制权利要求的保护范围。
本发明实施例提供一种多信道占用方法及装置、基站及终端，能够防止其他站点抢占非授权载波。
本发明实施例提供了一种多信道占用方法，包括：
在竞争资源上进行载波抢占；
成功抢占后，预约占用一个或多个载波。
可选地，上述方法还具有下面特点：
所述在竞争资源上进行载波抢占包括：确定可用的总资源，从所述可用的总资源中划分出第一指定资源，在所述第一指定资源上进行载波抢占；
成功抢占后，预约占用一个或多个载波，包括：成功抢占后，预约占用所述总资源中除所述第一指定资源外的资源中的一个或多个载波。
可选地，上述方法还具有下面特点：所述预约占用所述总资源中除所述第一指定资源外的资源中的一个或多个载波包括：
接收WIFI站点所发射的载波占用信息；
根据所述载波占用信息，预约占用所述总资源中除所述第一指定资源外的资源中的一个或多个载波资源。
可选地，上述方法还具有下面特点：所述在所述第一指定资源上进行载 波抢占的过程中，还包括：
如所述第一指定资源已被占用，则重新确定可用的总资源，从所述重新确定的可用的总资源中再重新划分出第二指定资源，在所述第二指定资源上进行载波抢占；
成功抢占后，预约占用所述重新确定的可用总资源中除所述第二指定资源外的资源中的一个或多个载波。
可选地，上述方法还具有下面特点：
所述在竞争资源上进行载波抢占包括：确定可用的总资源，将所述可用的总资源划分为多个载波组，每个载波组中包括一个或多个载波，抢占一个或多个载波组；
成功抢占后，预约占用一个或多个载波，包括：
成功抢占后，预约占用所抢占载波组中的所有载波。
可选地，上述方法还具有下面特点：所述确定可用的总资源，将所述可用的总资源划分为多个载波组包括：
接收WIFI站点所发射的载波占用信息；
根据所述载波占用信息将所述可用的总资源划分为多个载波组。
可选地，上述方法还具有下面特点：所述抢占载波组的过程中，
如待抢占的载波组已被占用，则重新确定可用的载波组，在所述重新确定的可用的载波组中进行抢占；
成功抢占后，预约占用所抢占载波组中的所有载波。
可选地，上述方法还具有下面特点：所述预约占用一个或多个载波，包括：
发射与所述WIFI站点所发射的相同格式的载波占用信息，所述载波占用信息包括频率资源信息和占用时长信息中的一个。
可选地，上述方法还具有下面特点：所述预约一个或多个载波，包括：
检测预约占用的载波是否已被占用，如果没有被占用，则成功占用所述预约的载波，如果已被占用，则放弃所述预约的载波。
可选地，上述方法还具有下面特点：所述预约一个或多个载波还包括：
广播载波占用信息，所述载波占用信息包括频率资源信息和占用时长信息中的一个。
本发明实施例还提供了一种多信道占用装置，其中，包括：
抢占模块，设置为在竞争资源上进行载波抢占；
预约模块，设置为成功抢占后，预约占用一个或多个载波。
可选地，上述装置还具有下面特点：
所述抢占模块，是设置为通过如下方式实现在竞争资源上进行载波抢占：确定可用的总资源，从所述可用的总资源中划分出第一指定资源，在所述第一指定资源上进行载波抢占；
所述预约模块，是设置为通过如下方式实现成功抢占后，预约占用一个或多个载波：在所述抢占模块成功抢占后，预约占用所述总资源中除所述第一指定资源外的资源中的一个或多个载波。
可选地，上述装置还具有下面特点：还包括，
接收模块，设置为接收WIFI站点所发射的载波占用信息；
所述预约模块，是设置为通过如下方式实现预约占用所述总资源中除所述第一指定资源外的资源中的一个或多个载波：根据所述载波占用信息，预约所述总资源中除所述第一指定资源外的资源中的一个或多个载波资源。
可选地，上述装置还具有下面特点：
所述抢占模块，还设置为在所述第一指定资源上进行载波抢占的过程中，如所述第一指定资源已被占用，则重新确定可用的总资源，从所述重新确定的可用的总资源中再重新划分出第二指定资源，在所述第二指定资源上进行载波抢占；成功抢占后，预约占用所述重新确定的可用总资源中除所述第二指定资源外的资源中的一个或多个载波。
可选地，上述装置还具有下面特点：
所述抢占模块，是设置为通过如下方式实现在竞争资源上进行载波抢占：确定可用的总资源，将所述可用的总资源划分为多个载波组，每个载波 组中包括一个或多个载波，抢占一个或多个载波组；
所述预约模块，是设置为通过如下方式实现成功抢占后，预约占用一个或多个载波：在所述抢占模块成功抢占后，预约占用所抢占载波组中的所有载波。
可选地，上述装置还具有下面特点：还包括：
接收模块，设置为接收WIFI站点所发射的载波占用信息；
所述抢占模块，是设置为通过如下方式实现确定可用的总资源，将所述可用的总资源划分为多个载波组：根据所述载波占用信息将所述可用的总资源划分为多个载波组的。
可选地，上述装置还具有下面特点：
所述抢占模块，还设置为抢占载波组的过程中，如待抢占的载波组已被占用，则重新确定可用的载波组，在所述可用的载波组中进行抢占；成功抢占后，预约占用所抢占载波组中的所有载波。
可选地，上述装置还具有下面特点：还包括：
发射模块，设置为在抢占模块预约占用一个或多个载波时，发射与所述WIFI站点所发射的相同格式的载波占用信息，所述载波占用信息至少包括频率资源信息和占用时长信息中的一个。
可选地，上述装置还具有下面特点：
所述预约模块，是设置为通过如下方式实现预约占用一个或多个载波：检测预约占用的载波是否已被占用，如果没有被占用，则成功占用所述预约占用的载波，如果已被占用，则放弃所述预约占用的载波。
可选地，上述装置还具有下面特点：还包括：
广播模块，设置为在抢占模块预约占用一个或多个载波时，广播载波占用信息，所述载波占用信息包括频率资源信息和占用时长信息中的一个。
本发明实施例还提供了一种基站，包括上述多信道占用装置。
本发明实施例还提供了一种终端，包括上述多信道占用装置。
综上，本发明实施例提供一种多信道占用方法及装置、基站及终端，能够很好地防止其他站点抢占非授权载波的问题，并且同时可以占用多个非授权载波，达到提高传输效率、同步、测量等效果。
在阅读并理解了附图和详细描述后，可以明白其他方面。
附图概述
图1为本发明实施例的一种多信道占用方法的流程图；
图2为本发明实施例一的一种多信道占用方法的流程图；
图3为本发明实施例二的一种多信道占用方法的流程图；
图4为本发明实施例三的一种多信道占用方法的流程图；
图5为本发明实施例四的一种多信道占用方法的流程图；
图6为本发明实施例五的一种多信道占用方法的流程图；
图7为本发明实施例的一种多信道占用装置的示意图。
本发明的实施方式
下文中将结合附图对本发明的实施例进行详细说明。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互任意组合。
图1为本发明实施例的一种多信道占用方法的流程图，所述方法可适用于基站、终端、中继站等的任何通信节点，如图1所示，本实施例的方法包括以下步骤：
步骤S11、在竞争资源上进行载波抢占；
步骤S12、成功抢占后，预约占用一个或多个载波。
在一可选实施例中，步骤S11包括：
确定可用的总资源，从所述可用的总资源中划分出第一指定资源，在所述第一指定资源上进行载波抢占，例如，将所述可用的总资源划分为固定竞争资源和预约占用资源，在所述固定竞争资源上进行抢占；
步骤S12包括：
成功抢占后，预约占用所述总资源中除所述第一指定资源外的资源中的一个或多个载波，，所述预约占用载波是指：广播预约占用所述载波的信息，以避免所述载波继续被抢占，待确定所述载波空闲后，占用所述载波。
其中，所述固定竞争资源可以包括一个或多个载波，所述预约占用资源可以包括一个或多个载波。
在一可选实施例中，步骤S11包括：
确定可用的总资源，将所述可用的总资源划分为多个载波组，每个载波组中包括一个或多个载波，抢占一个或多个载波组；
步骤S12包括：
成功抢占后，预约占用所抢占载波组中的所有载波。
本发明实施例还提供了一种计算机存储介质，所述计算机存储介质中存储有计算机可执行指令，所述计算机可执行指令用于执行上述方法。
以下以几个实施例对本发明的方法进行详细的说明。
实施例一：
如图2所示，包括以下步骤：
步骤101，LAA站点确定可用的总资源R；
本实施例中的LAA站点可以是基站、终端、中继站等的任何通信节点。
步骤102，LAA站点把可用的总资源R划分成LBT(Listen Before Talk，先听后说)资源R1和预约占用资源R2；
假设当前可用的最大频谱资源为200MHz，其中划分出固定的资源R1为20MHz，用于所有LAA站点(LAA1站点和LAA2站点)进行抢占，注意R1仍然是可以被WIFI使用的，所以R1的选择尽量避开WIFI活跃的carrier(载波)。
步骤103，LAA站点在R1上进行竞争，如抢占成功，则转步骤104；如未抢占成功，则转步骤106；
LAA1站点以5MHz/carrier的系统带宽进行抢占，除去R1最大共有36个可用的carrier，预计抢占40MHz的频谱资源；LAA2站点以20MHz/carrier的系统带宽进行抢占，除去R1最大共有9个可用的carrier，预计抢占60MHz。
步骤104，LAA1站点在R1位置进行抢占，成功抢占后，在R2位置预约占用4个5MHz/carrier的频谱资源，并广播预约占用信息，LAA2站点则不会继续在这4个载波上进行抢占。
LAA1站点在这4个载波上进行ED、CCA/eCCA检测。
步骤105，LAA1站点在这4个载波上检测是否有其他站点使用，可能存在WIFI站点在使用的情况。如果没有使用，则LAA1站点成功占用；如果有使用，则LAA1站点放弃被使用的载波，流程结束。
步骤106，LAA2站点在R1位置进行抢占未抢占成功，则LAA2站点有两种选择：选择1，等待R1资源释放，重新进行上述过程，但是等待时延过大；选择2，根据广播预约占用信息，重新确定可用的总资源，返回步骤101，如下：
LAA2站点修正竞争carrier和最大共有的可用的carrier，即200-40＝160作为当前可用的最大频谱资源，同时划分出固定的资源R1_new为20MHz，则此时除去R1_new最大共有7个可用的carrier，预计抢占60MHz。
LAA2站点在R1_new位置进行抢占，成功抢占后，在R2_new位置预约占用2个20MHz/carrier的频谱资源，并广播预约占用信息，其他LAA站点则不会继续在这2个载波上进行抢占。
LAA2站点在这2个载波上进行ED、CCA/eCCA检测是否有可能存在WIFI站点在使用的情况。如果载波没有被占用，则LAA2站点成功占用；如果已被占用，则LAA2站点放弃被使用的载波。
其他LAA站点和LAA2站点处理过程相同。
实施例二：
如图3所示，包括以下步骤：
步骤201，LAA站点确定可用的总资源R；
步骤202，LAA站点把可用的总资源R划分成载波组G；
假设当前可用的最大频谱资源为200MHz，其中G1对应1个载波20MHz，G2对应2个载波2*20MHz，G3对应3个载波3*20MHz，G4对应4个载波4*20MHz，G1－G4共计200MHz。用于所有LAA站点(LAA1站点和LAA2站点)进行抢占，注意G1－G4仍然是可以被WIFI使用的，所以G1－G4的选择尽量避开WIFI活跃的carrier。LAA1站点预计抢占40MHz的频谱资源，LAA2站点预计抢占60MHz的频谱资源。
步骤203，LAA站点在对应载波组G上进行竞争，如抢占成功，则转步骤204；如未抢占成功，则转步骤206；
步骤204，LAA1站点预计抢占40MHz的频谱资源，优先在G2上进行抢占，成功抢占后预约占用这40MHz的频谱资源，并广播预约占用信息，LAA2站点则不会继续在G2上进行抢占。
LAA1站点在G2上进行ED、CCA/eCCA检测。
步骤205，LAA1站点在G2上检测是否有其他站点使用，可能存在WIFI站点在使用的情况。如果没有使用，则LAA1站点成功占用；如果有使用，则LAA1站点放弃被使用的载波，流程结束。
步骤206，LAA2站点有两种选择：
选择1，等待G2资源释放，重新进行上述过程，但是等待时延过大；
选择2，根据广播预约占用信息，重新确定可用的载波组G，然后返回步骤203，如下：
LAA2站点预计抢占60MHz的频谱资源，优先在G3上进行抢占，成功抢占后预约占用这60MHz的频谱资源，并广播预约占用信息，其他LAA站点则不会继续在G3上进行抢占。
LAA2站点在G3上进行ED、CCA/eCCA检测是否有可能存在WIFI站点在使用的情况。如果没有使用，则LAA2站点成功占用；如果有使用，则LAA2站点放弃被使用的载波。
其他LAA站点和LAA2站点处理过程相同。
实施例三
如图4所示，包括以下步骤：
步骤301：LAA站点确定可用的总资源R；
步骤302：LAA站点把可用的总资源R划分成LBT资源R1和预约占用资源R2；
假设当前可用的最大频谱资源为100MHz，其中划分出固定的资源R1为5MHz，用于所有LAA站点(LAA1站点和LAA2站点)进行抢占，注意R1仍然是可以被WIFI使用的，所以R1的选择尽量避开WIFI活跃的carrier。
步骤303：LAA站点在R1上进行竞争，如抢占成功，则转步骤304；如未抢占成功，则转步骤305；
LAA1站点以5MHz/carrier的系统带宽进行抢占，除去R1最大共有19个可用的carrier，预计抢占20MHz的频谱资源；LAA2站点以5MHz/carrier的系统带宽进行抢占，除去R1最大共有19个可用的carrier，预计抢占40MHz。
步骤304，LAA1站点在R1位置进行抢占，成功抢占后，可选的接收WIFI站点所发射的载波占用信息，并根据所述信息，在R2位置预约占用3个5MHz/carrier的频谱资源，并广播预约占用信息，LAA2站点则不会继续在这3个载波上进行抢占，可选的发射和WIFI站点所发射的相同格式的载波占用信息，WIFI站点则不会继续在这3个载波上进行抢占。
LAA1站点在这3个载波上进行ED、CCA/eCCA检测。
步骤305，LAA1站点在这3个载波上检测是否有其他站点使用，可能存在WIFI站点在使用的情况。如果没有使用，则LAA1站点成功占用；如果有使用，则LAA1站点放弃被使用的载波，流程结束。
步骤306，LAA2站点有两种选择：选择1，等待R1资源释放，重新进行上述过程，但是等待时延过大；选择2，，根据广播预约占用信息，重新确定可用的总资源，返回步骤101，如下：
LAA2站点修正竞争carrier和最大共有的可用的carrier，即100-20＝80作 为当前可用的最大频谱资源，同时划分出固定的资源R1_new为5MHz，则此时除去R1_new最大共有15个可用的carrier，预计抢占40MHz。
LAA2站点在R1_new位置进行抢占，成功抢占后，可选的接收WIFI站点所发射的载波占用信息，并根据所述信息，在R2_new位置预约占用7个5MHz/carrier的频谱资源，并广播预约占用信息，其他LAA站点则不会继续在这7个载波上进行抢占，可选的发射和WIFI站点所发射的相同格式的载波占用信息，WIFI站点则不会继续在这7个载波上进行抢占。
LAA2站点在这7个载波上进行ED、CCA/eCCA检测是否有可能存在WIFI站点在使用的情况。如果没有使用，则LAA2站点成功占用；如果有使用，则LAA2站点放弃被使用的载波。
其他LAA站点和LAA2站点处理过程相同。
实施例四：
如图5所示，包括以下步骤：
步骤401，LAA站点确定可用的总资源R；
步骤402，LAA站点把可用的总资源R划分成载波组G；
假设当前可用的最大频谱资源为100MHz，可选的接收WIFI站点所发射的载波占用信息，并根据所述信息来划分载波组，其中，G1对应1个载波5MHz，G2对应2个载波2*5MHz，G3对应3个载波3*5MHz，G4对应4个载波4*5MHz，G5对应5个载波5*5MHz，G6对应5个载波5*5MHz，G1…G6共计100MHz。用于所有LAA站点(LAA1站点和LAA2站点)进行抢占，注意G1－G6仍然是可以被WIFI使用的，所以G1－G6的选择尽量避开WIFI活跃的carrier。LAA1站点预计抢占10MHz的频谱资源，LAA2站点预计抢占20MHz的频谱资源。
步骤403，LAA站点在对应载波组G上进行竞争，LAA站点抢占一个载波组，如抢占成功，则转步骤404；如未抢占成功，则转步骤406；
步骤404，LAA1站点预计抢占10MHz的频谱资源，优先在G2上进行抢占，成功抢占后预约占用这10MHz的频谱资源，并广播预约占用信息， LAA2站点则不会继续在G2上进行抢占，可选的发射和WIFI站点所发射的相同格式的载波占用信息，WIFI站点则不会继续在G2上进行抢占。
LAA1站点在G2上进行ED、CCA/eCCA检测。
步骤405，LAA1站点在G2上检测是否有其他站点使用，可能存在WIFI站点在使用的情况。如果没有使用，则LAA1站点成功占用；如果有使用，则LAA1站点放弃被使用的载波，流程结束。
步骤406，LAA2站点有两种选择：选择1，等待G2资源释放，重新进行上述过程，但是等待时延过大；选择2，根据广播预约占用信息，重新确定可用的载波组G，可选的接收WIFI站点所发射的载波占用信息，并根据所述信息来划分载波组G，然后返回步骤403，如下：
LAA2站点预计抢占20MHz的频谱资源，优先在G4上进行抢占，成功抢占后预约占用这20MHz的频谱资源，并广播预约占用信息，其他LAA站点则不会继续在G4上进行抢占，可选的发射和WIFI站点所发射的相同格式的载波占用信息，WIFI站点则不会继续在G2上进行抢占。
LAA2站点在G4上进行ED、CCA/eCCA检测是否有可能存在WIFI站点在使用的情况。如果没有使用，则LAA2站点成功占用；如果有使用，则LAA2站点放弃被使用的载波。
其他LAA站点和LAA2站点处理过程相同。
实施例四中，还可以约定占用的时长，如下：
假设当前可用的最大频谱资源为100MHz，其中G1对应1个载波5MHz，G2对应2个载波2*5MHz，G3对应3个载波3*5MHz，G4对应4个载波4*5MHz，G5对应5个载波5*5MHz，G6对应5个载波5*5MHz，G1－G6共计100MHz，一旦抢占成功则约定占用10ms。
步骤404中，LAA1站点预计抢占10MHz的频谱资源，优先在G2上进行抢占，成功抢占后预约占用这10MHz的频谱资源，并广播预约占用信息，约定占用10ms，LAA2站点则不会在约定占用时长内在G2上进行抢占(超过约定占用时长后，LAA2站点会继续在G2上进行抢占)，可选的发射 和WIFI站点所发射的相同格式的载波占用信息，WIFI站点则不会继续在G2上进行抢占。
步骤406中LAA2站点预计抢占20MHz的频谱资源，优先在G4上进行抢占，成功抢占后预约占用这20MHz的频谱资源，并广播预约占用信息，约定占用10ms，其他LAA站点则不会继续在G4上进行抢占。
实施例五：
如图6所示，包括以下步骤：
步骤501，LAA站点确定可用的总资源R；
步骤502，LAA站点把可用的总资源R划分成载波组G；
假设当前可用的最大频谱资源为100MHz，可选的接收WIFI站点所发射的载波占用信息，并根据所述信息来划分载波组，其中，G1对应1个载波5MHz，G2对应2个载波2*5MHz，G3对应3个载波3*5MHz，G4对应4个载波4*5MHz，G5对应5个载波5*5MHz，G6对应5个载波5*5MHz，G1…G6共计100MHz。用于所有LAA站点(LAA1站点和LAA2站点)进行抢占，注意G1－G6仍然是可以被WIFI使用的，所以G1－G6的选择尽量避开WIFI活跃的carrier。LAA1站点预计抢占30MHz的频谱资源，LAA2站点预计抢占20MHz的频谱资源。
所述根据接收的WIFI站点发送的载波占用信息划分载波组包括：对所述占用信息中涉及的载波进行避让，确定除去已避让载波后的可用总载波资源，对所述可用总载波资源进行载波分组；
其中，对固定载波资源进行载波分组已是本领域的公知常识。
步骤503，LAA站点在对应载波组G上进行竞争，LAA站点抢占多个载波组，如抢占成功，则转步骤504；如未抢占成功，则转步骤506；
步骤504，LAA1站点预计抢占30MHz的频谱资源，优先在G5和G1上进行抢占，成功抢占后预约占用这10MHz的频谱资源，并广播预约占用信息，LAA2站点则不会继续在G5和G1上进行抢占，可选的发射和WIFI站点所发射的相同格式的载波占用信息，WIFI站点则不会继续在G5和G1上 进行抢占。
LAA1站点在G5和G1上进行ED、CCA/eCCA检测。
步骤505，LAA1站点在G5和G1上检测是否有其他站点使用，可能存在WIFI站点在使用的情况。如果没有使用，则LAA1站点成功占用；如果有使用，则LAA1站点放弃被使用的载波，流程结束。
步骤506，LAA2站点有两种选择：选择1，等待G5和G1资源释放，重新进行上述过程，但是等待时延过大；选择2，根据广播预约占用信息，重新确定可用的载波组G，可选的接收WIFI站点所发射的载波占用信息，并根据所述信息来划分载波组G，然后返回步骤503，如下：
LAA2站点预计抢占20MHz的频谱资源，优先在G4上进行抢占，成功抢占后预约占用这20MHz的频谱资源，并广播预约占用信息，其他LAA站点则不会继续在G4上进行抢占，可选的发射和WIFI站点所发射的相同格式的载波占用信息，WIFI站点则不会继续在G4上进行抢占。
LAA2站点在G4上进行ED、CCA/eCCA检测是否有可能存在WIFI站点在使用的情况。如果没有使用，则LAA2站点成功占用；如果有使用，则LAA2站点放弃被使用的载波。
其他LAA站点和LAA2站点处理过程相同。
图7为本发明实施例的一种多信道占用装置的示意图，如图7所示，本实施例的装置包括：
抢占模块，设置为在竞争资源上进行载波抢占；
预约模块，设置为成功抢占后，预约占用一个或多个载波。
在一可选实施例中，所述抢占模块，是设置为通过如下方式实现在竞争资源上进行载波抢占：确定可用的总资源，从所述可用的总资源中划分出第一指定资源，在所述第一指定资源上进行载波抢占；
所述预约模块，是设置为在所述抢占模块成功抢占后，预约占用所述总资源中除所述第一指定资源外的资源中的一个或多个载波。
在一可选实施例中，所述装置还可以包括，
接收模块，设置为接收WIFI站点所发射的载波占用信息；
所述预约模块，设置为根据所述载波占用信息，预约所述总资源中除所述第一指定资源外的资源中的一个或多个载波资源。
在一可选实施例中，所述抢占模块，还设置为在所述第一指定资源上进行载波抢占的过程中，如所述第一指定资源已被占用，则重新确定可用的总资源，从所述重新确定的可用的总资源中再重新划分出第二指定资源，在所述第二指定资源上进行载波抢占。
在一可选实施例中，所述抢占模块，是设置为通过如下方式实现在竞争资源上进行载波抢占：确定可用的总资源，将所述可用的总资源划分为多个载波组，每个载波组中包括一个或多个载波，抢占一个或多个载波组；
所述预约模块，是设置为在所述抢占模块成功抢占后，预约占用所抢占载波组中的所有载波。
在一可选实施例中，所述抢占模块，是设置为通过如下方式实现抢占载波组：如待抢占的载波组已被占用，则重新确定可用的载波组，在所述可用的载波组中进行抢占。
在一可选实施例中，所述装置还可以包括：
接收模块，设置为接收WIFI站点所发射的载波占用信息；
所述抢占模块，是设置为根据所述载波占用信息将所述可用的总资源划分为多个载波组的。
在一可选实施例中，所述装置还可以包括：
发射模块，设置为发射与所述WIFI站点所发射的相同格式的载波占用信息，所述载波占用信息至少包括频率资源信息和占用时长信息中的一个。
在一可选实施例中，所述预约模块，是设置为通过如下方式实现预约占用一个或多个载波：检测预约占用的载波是否已被使用，如果没有被使用，则成功占用所述预约占用的载波，如果已被使用，则放弃所述预约占用的载波。
在一可选实施例中，所述装置还可以包括：
广播模块，设置为广播载波占用信息，所述载波占用信息至少包括频率资源信息和占用时长信息中的一个。
本发明实施例还提供了一种基站，包括上述的多信道占用装置。
本发明实施例还提供了一种终端，包括上述的多信道占用装置。
本领域普通技术人员可以理解上述方法中的全部或部分步骤可通过程序来指令相关硬件完成，所述程序可以存储于计算机可读存储介质中，如只读存储器、磁盘或光盘等。可选地，上述实施例的全部或部分步骤也可以使用一个或多个集成电路来实现。相应地，上述实施例中的各模块/单元可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。本发明不限制于任何特定形式的硬件和软件的结合。
以上仅为本发明的优选实施例，当然，本发明还可有其他多种实施例，在不背离本发明精神及其实质的情况下，熟悉本领域的技术人员当可根据本发明作出各种相应的改变和变形，但这些相应的改变和变形都应属于本发明所附的权利要求的保护范围。
工业实用性
上述技术方案能够很好地防止其他站点抢占非授权载波的问题，并且同时可以占用多个非授权载波，达到提高传输效率、同步、测量等效果。

Claims (22)

  1. 一种多信道占用方法，包括：
    在竞争资源上进行载波抢占；
    成功抢占后，预约占用一个或多个载波。
  2. 如权利要求1所述的方法，其中：
    所述在竞争资源上进行载波抢占包括：
    确定可用的总资源，从所述可用的总资源中划分出第一指定资源，在所述第一指定资源上进行载波抢占；
    成功抢占后，预约占用一个或多个载波，包括：
    成功抢占后，预约占用所述总资源中除所述第一指定资源外的资源中的一个或多个载波。
  3. 如权利要求2所述的方法，其中：所述预约占用所述总资源中除所述第一指定资源外的资源中的一个或多个载波包括：
    接收无线保真WIFI站点所发射的载波占用信息；
    根据所述载波占用信息，预约占用所述总资源中除所述第一指定资源外的资源中的一个或多个载波资源。
  4. 如权利要求2或3所述的方法，还包括：
    所述在所述第一指定资源上进行载波抢占的过程中，如所述第一指定资源已被占用，则重新确定可用的总资源，从所述重新确定的可用的总资源中再重新划分出第二指定资源，在所述第二指定资源上进行载波抢占；
    成功抢占后，预约占用所述重新确定的可用总资源中除所述第二指定资源外的资源中的一个或多个载波。
  5. 如权利要求1所述的方法，其中：
    所述在竞争资源上进行载波抢占包括：
    确定可用的总资源，将所述可用的总资源划分为多个载波组，每个载波组中包括一个或多个载波，抢占一个或多个载波组；
    成功抢占后，预约占用一个或多个载波，包括：
    成功抢占后，预约占用所抢占载波组中的所有载波。
  6. 如权利要求5所述的方法，其中，确定可用的总资源，将所述可用的总资源划分为多个载波组包括：
    接收无线保真WIFI站点所发射的载波占用信息；
    根据所述载波占用信息将所述可用的总资源划分为多个载波组。
  7. 如权利要求5或6所述的方法，还包括：
    在所述抢占载波组的过程中，如待抢占的载波组已被占用，则重新确定可用的载波组，在所述重新确定的可用的载波组中进行抢占；
    成功抢占后，预约占用所抢占载波组中的所有载波。
  8. 如权利要求3或6所述的方法，其中：所述预约占用一个或多个载波包括：
    发射与所述WIFI站点所发射的相同格式的载波占用信息，所述载波占用信息包括频率资源信息和占用时长信息中的一个。
  9. 如权利要求1或2或3或5或6所述的方法，其中：所述预约一个或多个载波，包括：
    检测预约占用的载波是否已被占用，如果没有被占用，则成功占用所述预约的载波，如果已被占用，则放弃所述预约的载波。
  10. 如权利要求9所述的方法，所述预约一个或多个载波还包括：
    广播载波占用信息，所述载波占用信息包括频率资源信息和占用时长信息中的一个。
  11. 一种多信道占用装置，包括：
    抢占模块，设置为在竞争资源上进行载波抢占；
    预约模块，设置为成功抢占后，预约占用一个或多个载波。
  12. 如权利要求11所述的装置，其中：
    所述抢占模块，是设置为通过如下方式实现在竞争资源上进行载波抢 占：确定可用的总资源，从所述可用的总资源中划分出第一指定资源，在所述第一指定资源上进行载波抢占；
    所述预约模块，是设置为通过如下方式实现成功抢占后，预约占用一个或多个载波：在所述抢占模块成功抢占后，预约占用所述总资源中除所述第一指定资源外的资源中的一个或多个载波。
  13. 如权利要求12所述的装置，还包括，
    接收模块，设置为接收无线保真WIFI站点所发射的载波占用信息；
    所述预约模块，是设置为通过如下方式实现预约占用所述总资源中除所述第一指定资源外的资源中的一个或多个载波：根据所述载波占用信息，预约所述总资源中除所述第一指定资源外的资源中的一个或多个载波资源。
  14. 如权利要求12或13所述的装置，
    所述抢占模块，还设置为在所述第一指定资源上进行载波抢占的过程中，如所述第一指定资源已被占用，则重新确定可用的总资源，从所述重新确定的可用的总资源中再重新划分出第二指定资源，在所述第二指定资源上进行载波抢占；成功抢占后，预约占用所述重新确定的可用总资源中除所述第二指定资源外的资源中的一个或多个载波。
  15. 如权利要求11所述的装置，其中：
    所述抢占模块，是设置为通过如下方式实现在竞争资源上进行载波抢占：确定可用的总资源，将所述可用的总资源划分为多个载波组，每个载波组中包括一个或多个载波，抢占一个或多个载波组；
    所述预约模块，是设置为通过如下方式实现成功抢占后，预约占用一个或多个载波：在所述抢占模块成功抢占后，预约占用所抢占载波组中的所有载波。
  16. 如权利要求15所述的装置，还包括：
    接收模块，设置为接收无线保真WIFI站点所发射的载波占用信息；
    所述抢占模块，是设置为通过如下方式实现确定可用的总资源，将所述可用的总资源划分为多个载波组：根据所述载波占用信息将所述可用的总资源划分为多个载波组的。
  17. 如权利要求15或16所述的装置，
    所述抢占模块，还设置为抢占载波组的过程中，如待抢占的载波组已被占用，则重新确定可用的载波组，在所述可用的载波组中进行抢占；成功抢占后，预约占用所抢占载波组中的所有载波。
  18. 如权利要求13或16所述的装置，还包括：
    发射模块，设置为在抢占模块预约占用一个或多个载波时，发射与所述无线保真WIFI站点所发射的相同格式的载波占用信息，所述载波占用信息至少包括频率资源信息和占用时长信息中的一个。
  19. 如权利要求11或12或13或15或16所述的装置，其中，
    所述预约模块，是设置为通过如下方式实现预约占用一个或多个载波：检测预约占用的载波是否已被占用，如果没有被占用，则成功占用所述预约占用的载波，如果已被占用，则放弃所述预约占用的载波。
  20. 如权利要求19所述的装置，还包括：
    广播模块，设置为在抢占模块预约占用一个或多个载波时，广播载波占用信息，所述载波占用信息包括频率资源信息和占用时长信息中的一个。
  21. 一种基站，包括如权利要求11－20任一项所述的装置。
  22. 一种终端，包括如权利要求11－20任一项所述的装置。
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