CN105208668B - A kind of carrier sensing method - Google Patents
A kind of carrier sensing method Download PDFInfo
- Publication number
- CN105208668B CN105208668B CN201410250760.8A CN201410250760A CN105208668B CN 105208668 B CN105208668 B CN 105208668B CN 201410250760 A CN201410250760 A CN 201410250760A CN 105208668 B CN105208668 B CN 105208668B
- Authority
- CN
- China
- Prior art keywords
- frequency range
- carrier sense
- information
- message
- multiple frequency
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/14—Spectrum sharing arrangements between different networks
-
- 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]
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
A method of carrying out carrier sense on the user equipment of LTE communication system, comprising: the user equipment receives the first message sent from base station, wherein include indicating that the user equipment carries out the information of carrier sense in the first message；The user equipment carries out carrier sense according to the first message；The user equipment sends second message to the base station, wherein includes the result of the carrier sense in the second message.
Description
Technical field
The present invention relates to field of communication technology more particularly to wireless communication technology fields.
Background technique
In wireless communication field, it is however generally that, traditional deployment way is system work in authorized spectrum band (licensed
Band), i.e., entire frequency spectrum resource all keeps for the system to use.Typically, LTE communication system is exactly to use authorized spectrum band
Work.
However, with the further growth of wireless traffic especially wireless data service, to the capacity of wireless communication system
And band requirement also increases accordingly.In this case, the authorized spectrum band resource of LTE system seems relative deficiency.Therefore,
In the field LTE, nearest one of research hotspot is how to shunt high-incidence data service using the resource of unauthorized frequency range.
One of typical case but without limiting scene are that LTE system uses the frequency range of WiFi system.In this case,
If LTE system can carry out service distributing using the frequency range of WiFi at the time of certain high loads, it is clear that can greatly improve
The performance of system, to effectively cope with high load application scenarios.This scheme is referred to as subordinate in the LTE of unlicensed spectrum
(LTE in Unlicensed spectrum abbreviation LTE-U) system.
It is clear that LTE-U systematic difference needs some prerequisites: firstly the need of solving the problems, such as it is LTE system
And non-3 GPP system, it cannot especially block other side mutually with WiFi system using these unauthorized frequency ranges, i.e., must realize
The mechanism of certain resource request.In existing WiFi system, resource request is used based on transmitter
(transmitter) hair listen-before (listen-before-talk) mechanism, which is any one in WiFi system
The equipment of tape transmitter, such as access point (Access Point abbreviation AP) or terminal, before thering are data to need to emit, first
Carrier sense is carried out, confirmation is not in just to carry out data transmission in the case where conflicting, to efficiently avoid resource contention
The occurrence of.This method is proved in WiFi system be rather effective.But due to some spies of LTE system itself
Property, cause the hair listen-before mechanism based on transmitter that can not be suitable for LTE system.First, for FDD LTE system
Speech, uplink and downlink uses different frequency ranges, therefore does not correspond to the receiver of band downlink in base station side and set in user
Standby side (user equipment abbreviation UE) does not correspond to the receiver of uplink band, if causing to carry out being based on transmitter
Carrier sense the radio circuit of base station and UE must be just changed, considerably increase the complexity of hardware；Second, with
WiFi system is different, and LTE system is using centerized fusion, and all resource allocations are carried out in base station side, the side UE
Resource cannot independently be distributed；Third, when the cell of LTE system is overlapped with the covering part of WiFi system, at transmitter into
Capable carrier sense result possibly can not really reflect the actual interference situation of receiving end, for example, it may be possible to occur when base station position
When except the coverage area of WiFi cell, in base station side intercepted result it is that some unauthorized frequency range can be used, however target
UE is by chance located within the coverage area of WiFi cell, and just receives the case where WiFi signal is interfered in the frequency range, instead
?.
So target of the invention is exactly to find a kind of new carrier sensing method；This method is required to so that LTE
System can carry out the carrier sense of accurate unauthorized frequency range；Meet the central controlled requirement of LTE system again；Also to use up can
The existing specification of compatibility of energy, avoids the change to existing protocol excessive.
Summary of the invention
To solve the above problem in the prior art, the present invention proposes a kind of new carrier sensing method.By in the side UE
The carrier sense controlled based on base station is carried out, to meet accuracy and central controlled requirement simultaneously.
Specifically, according to the first aspect of the invention, it proposes and a kind of is carried on the user equipment of LTE communication system
The method that wave is listened to, comprising: the user equipment receives the first message sent from base station, wherein wraps in the first message
Include the information for indicating that the user equipment carries out carrier sense；The user equipment carries out carrier wave and detects according to the first message
It listens；The user equipment sends second message to the base station, wherein includes the knot of the carrier sense in the second message
Fruit.
Preferably, the information that the instruction user equipment carries out carrier sense includes that instruction carries out the carrier sense
At least one frequency range information.
It is highly preferred that the information that the instruction user equipment carries out carrier sense includes that the instruction progress carrier wave is detectd
The information for the time listened.
It is highly preferred that the information that the instruction carries out the time of the carrier sense includes: the instruction user equipment week
Carry out the carrier sense to phase property；Instruction and cycle period and offset corresponding at least one described frequency range.
It is highly preferred that the information that the instruction carries out the time of the carrier sense includes: that the instruction user equipment is non-
Periodically carry out the carrier sense；Window is listened to corresponding to instruction and at least one described frequency range.
It is highly preferred that it is described with window is listened to corresponding at least one described frequency range includes listening to the time started and listening to
End time.
It is highly preferred that the result of the carrier sense includes at least one described frequency range with the presence or absence of conflict.
It is highly preferred that the result of the carrier sense includes the result measured at least one described frequency range.
It is highly preferred that the frequency range for carrying out the carrier sense is the unauthorized frequency range of LTE communication system.
It is highly preferred that the first message, second message is sent in the authorized spectrum band of LTE communication system.
According to the second aspect of the invention, a kind of auxiliary progress carrier sense on the base station of LTE communication system is proposed
Method, comprising: the base station at least one user equipment send first message, wherein in the first message include refer to
Show that the user equipment carries out the information of carrier sense；The base station receives the second message that the user equipment is sent, wherein
It include the result that the user equipment carries out the carrier sense according to the first message in the second message.
Preferably, the information that the instruction user equipment carries out carrier sense includes that instruction carries out the carrier sense
At least one frequency range information.
It is highly preferred that the information that the instruction user equipment carries out carrier sense includes that the instruction progress carrier wave is detectd
The information for the time listened.
It is highly preferred that the information that the instruction carries out the time of the carrier sense includes: the instruction user equipment week
Carry out the carrier sense to phase property；Instruction and cycle period and offset corresponding at least one described frequency range.
It is highly preferred that the information that the instruction carries out the time of the carrier sense includes: that the instruction user equipment is non-
Periodically carry out the carrier sense；Window is listened to corresponding to instruction and at least one described frequency range.
It is highly preferred that it is described with window is listened to corresponding at least one described frequency range includes listening to the time started and listening to
End time.
It is highly preferred that it is described with window is listened to corresponding at least one described frequency range includes listening to the time started and listening to
Duration.
It is highly preferred that the result of the carrier sense includes at least one described frequency range with the presence or absence of conflict.
It is highly preferred that the result of the carrier sense includes the result measured at least one described frequency range.
It is highly preferred that the frequency range for carrying out the carrier sense is the unauthorized frequency range of LTE communication system.
It is highly preferred that the first message, second message is sent in the authorized spectrum band of LTE communication system.
According to the third aspect of the invention we, it proposes and a kind of carries out carrier sense on the user equipment of LTE communication system
Equipment, comprising: receiving module receives the first message that sends from base station for the user equipment, wherein described first disappears
It include indicating that the user equipment carries out the information of carrier sense in breath；Module is listened to, for the user equipment according to
First message carries out carrier sense；Sending module sends second message to the base station for the user equipment, wherein institute
State the result in second message including the carrier sense.
According to the fourth aspect of the invention, a kind of auxiliary progress carrier sense on the base station of LTE communication system is proposed
Equipment, comprising: sending module, for the base station at least one user equipment send first message, wherein described first
It include indicating that the user equipment carries out the information of carrier sense in message；Receiving module receives the use for the base station
The second message that family equipment is sent, wherein include that the user equipment is carried out according to the first message in the second message
The result of the carrier sense.
In the present invention, by flanking the carrier sense parameter that receipts base station is sent in UE and sending the result of carrier sense
To base station, it is ensured that carry out whole centralized control by carrier sense process of the base station to unauthorized frequency range；By the way that carrier wave is detectd
The operation listened is limited to the side UE, it is ensured that the accuracy of carrier sense result；Simultaneously without changing the existing side UE and base station side
Radio circuit part, thus to the greatest extent with existing specification keep compatibility.
Detailed description of the invention
The following detailed description to non-limiting embodiment, other spies of the invention are read by referring to accompanying drawing
Sign, purpose and advantage will will become more apparent.
Fig. 1 shows the stream that the method for carrier sense is carried out on a kind of UE in LTE communication system according to the present invention
Cheng Tu；
Fig. 2 shows the sides that auxiliary on a kind of base station in LTE communication system according to the present invention carries out carrier sense
The flow chart of method；
Fig. 3 shows the frame that the equipment of carrier sense is carried out on a kind of UE in LTE communication system according to the present invention
Figure；
Fig. 4 shows auxiliary on a kind of base station in LTE communication system according to the present invention and carries out setting for carrier sense
Standby block diagram.
Wherein, the same or similar appended drawing reference indicates the same or similar steps characteristic or device/module.
Specific embodiment
In the following detailed description of the preferred embodiment, reference is constituted to the appended attached drawing of present invention a part.Institute
Attached attached drawing, which has been illustrated by way of example, can be realized specific embodiment.Exemplary embodiment is not intended to
Exhaustive all embodiments according to the present invention.It is appreciated that without departing from the scope of the present invention, can use other
Embodiment can also carry out the modification of structure or logic.Therefore, it is below specific descriptions and it is unrestricted, and this
The range of invention is defined by the claims appended hereto.
Firstly, application according to the present invention scene, there are the base station of a LTE communication system, which is served at least
One UE.Meanwhile there is also other carrier waves in the range of the base station and UE communication, typically, such as there is also WiFi systems
The carrier wave of system.When base station, which determines to be likely to require, carries out LTE-U deployment, for example, determining in the base station of FDD LTE configuration may
It needs when downlink uses the frequency spectrum resource of WiFi, which will be detectd by configuring the corresponding carrier wave of message informing UE progress
It listens；And UE then carries out carrier sense operation according to corresponding configuration parameter, and the result listened to is fed back to base station, for base station into
The corresponding resource allocation operations of row.It is above exactly basic messae process of the invention.
On this basis, according to one embodiment of present invention, it proposes and a kind of is carried on the UE of LTE communication system
The method that wave is listened to.Specifically, the UE receives the first message sent from above-mentioned base station first, finger is contained in the first message
Show that the UE carries out the information of carrier sense；Then corresponding carrier sense operation is carried out according to the instruction information received；Finally,
The result that above-mentioned carrier sense operates is sent back the base station by second message by the UE.
Preferably, above-mentioned instruction information may include instruction UE enterprising in one or more frequency range of other above-mentioned carrier waves
Row carrier sense.UE in this way may not need to be listened in entire frequency range, so as to effectively save the kwh loss of UE.
Meanwhile the frequency range that base station can also listen to needs is flexibly configured, for example, entire carrier wave frequency range can be divided into difference
A series of subsets of frequency range, then correspondingly select different subsets according to the demand of service conditions, and instruction UE carries out corresponding
Listen to operation.
Further, above-mentioned instruction information may include indicating that UE carries out the information of the time of above-mentioned carrier sense.In this way
UE may not need progress carrier sense operation always, equally can also effectively save the kwh loss of UE.
Further, in order to simplify configuration, above-mentioned instruction temporal information may include instruction UE periodically or non-
Periodically listened to.When indicating that UE is periodically listened to, above-mentioned instruction temporal information can also include instruction pair
The cycle period and offset of aforementioned each frequency range are answered, how often so-called cycle period is i.e. every carries out once on the carrier wave
Carrier sense circulation, how long so-called offset, that is, each carrier sense circulation is interior operates without carrier sense.Pass through this
Kind mode, can flexibly configure different time of intercept to each frequency range.When indicating that UE is aperiodically listened to, on
Window can also be listened to including the corresponding aforementioned each frequency range of instruction by stating instruction temporal information, and so-called window of listening to corresponds to respectively
The carrier sense operation of a frequency range should be in which period implementation.Further, listen to window can by listen to the time started and
Listening to the end time is defined；It can also be defined by listening to the time started and listening to the duration.It above can be by base station root
It is flexibly configured according to actual needs.
Preferably, the result of the carrier sense operation in above-mentioned second message may include at least one above-mentioned frequency range
With the presence or absence of the information of conflict, i.e., whether the resource in corresponding frequency range is used.
Further, the result of above-mentioned carrier sense operation can also include measuring at least one above-mentioned frequency range
As a result, the measurement can be certain measurement operation according to base station configuration, for example, noise intensity in corresponding band or again
Folded interference etc..
It should be pointed out that above-mentioned carrier sense operation is equally applicable for the authorization of LTE system or unauthorized frequency range；To the greatest extent
Pipe is in situations where it is preferred, the frequency range for carrying out carrier sense is unauthorized frequency range, and reception/transmission first message/second message
Frequency range be authorized spectrum band.
Attached drawing 1 gives the flow chart according to above embodiment, comprising:
S11. the user equipment receives the first message sent from base station, wherein includes instruction in the first message
The user equipment carries out the information of carrier sense；
S12. the user equipment carries out carrier sense according to the first message；
S13. the user equipment sends second message to the base station, wherein includes the load in the second message
The result that wave is listened to.
It is corresponding, according to another embodiment of the invention, proposes one kind auxiliary on base station and carry out carrier sense
Method.Specifically, the base station sends first message, the letter for indicating that the UE carries out carrier sense is contained in the first message
Breath；Then, which receives the second message of UE transmission, includes that the UE is carried out according to above-mentioned first message in the second message
The result of carrier sense.
With it is aforementioned similar, it is preferred that above-mentioned instruction information may include indicate UE at one of other above-mentioned carrier waves or
Carrier sense is carried out in multiple frequency ranges.UE in this way may not need to be listened in entire frequency range, so as to effectively save
The kwh loss of UE.Meanwhile the frequency range that base station can also listen to needs is flexibly configured, for example, will can entirely carry
Wave frequency section is divided into a series of subsets of different frequency range, and different subsets is then correspondingly selected according to the demand of service conditions, is referred to
Show that UE progress is corresponding and listens to operation.
Further, above-mentioned instruction information may include indicating that UE carries out the information of the time of above-mentioned carrier sense.In this way
UE may not need progress carrier sense operation always, equally can also effectively save the kwh loss of UE.
Further, in order to simplify configuration, above-mentioned instruction temporal information may include instruction UE periodic or non-
Periodically listened to.When indicating that UE is periodically listened to, above-mentioned instruction temporal information can also include instruction pair
The cycle period and offset of aforementioned each frequency range are answered, how often so-called cycle period is i.e. every carries out once on the channel
Carrier sense circulation, how long so-called offset, that is, each carrier sense circulation is interior operates without carrier sense.Pass through this
Kind mode, can flexibly configure different time of intercept to each frequency range.When instruction UE is acyclic listened to when, on
Window can also be listened to including the corresponding aforementioned each frequency range of instruction by stating instruction temporal information, and so-called window of listening to corresponds to respectively
The carrier sense operation of a frequency range should be in which period implementation.Further, listen to window can by listen to the time started and
Listening to the end time is defined；It can also be defined by listening to the time started and listening to the duration.It above can be by base station root
It is flexibly configured according to actual needs.
Preferably, the result of the carrier sense operation in above-mentioned second message may include at least one above-mentioned frequency range
With the presence or absence of the information of conflict, i.e., whether the resource in corresponding frequency range is used.
Further, the result of above-mentioned carrier sense operation can also include measuring at least one above-mentioned frequency range
As a result, the measurement can be certain measurement operation according to base station configuration, for example, noise intensity in corresponding band or again
Folded interference etc..
It should be pointed out that above-mentioned carrier sense operation is equally applicable for the authorization of LTE system or unauthorized frequency range；To the greatest extent
Pipe is in situations where it is preferred, the frequency range for carrying out carrier sense is unauthorized frequency range, and reception/transmission first message/second message
Frequency range be authorized spectrum band.
Attached drawing 2 gives the flow chart according to above embodiment, comprising:
S21. the base station sends first message at least one user equipment, wherein includes referring in the first message
Show that the user equipment carries out the information of carrier sense；
S22. the base station receives the second message that the user equipment is sent, wherein includes institute in the second message
State the result that user equipment carries out the carrier sense according to the first message.
The equipment provided by the present invention corresponded to the above method is introduced in conjunction with block diagram again below, in view of therein
Step feature in unit/device characteristic and the above method has corresponding relationship, will conform to the principle of simplicity.
Attached drawing 3, which is shown, carries out carrier sense on a kind of user equipment in LTE communication system according to the present invention
Equipment 30, the equipment 30 include:
Receiving module 3001 receives the first message sent from base station for the user equipment, wherein described first disappears
It include indicating that the user equipment carries out the information of carrier sense in breath；
Module 3002 is listened to, for the user equipment according to the first message, carries out carrier sense；
Sending module 3003 sends second message to the base station for the user equipment, wherein the second message
In include the carrier sense result.
Attached drawing 4 shows that according to the present invention a kind of auxiliary carries out carrier sense and sets on base station in LTE communication system
Standby 40, the equipment 40 includes:
Sending module 4001 sends first message at least one user equipment for the base station, wherein described first
It include indicating that the user equipment carries out the information of carrier sense in message；
Receiving module 4002 receives the second message that the user equipment is sent for the base station, wherein described second
It include the result that the user equipment carries out the carrier sense according to the first message in message.
The embodiment of the present invention is described above, but the invention is not limited to specific system, equipment and
Specific agreement, those skilled in that art can make various deformations or amendments within the scope of the appended claims.
The those skilled in the art of those the art can pass through research specification, disclosure and attached drawing and appended
Claims, understand and implement other changes to the embodiment of disclosure.In the claims, word " comprising " is not arranged
Except other elements and step, and wording "one" be not excluded for plural number.In the present invention, " first ", " second " only indicate name
Claim, does not represent orbution.In the practical application of invention, cited multiple skills in the possible perform claim requirement of a part
The function of art feature.Any appended drawing reference in claim should not be construed as the limitation to range.
Claims (18)
1. a kind of method for carrying out carrier sense on the user equipment of LTE communication system, comprising:
A. the user equipment receives the first message sent from base station, wherein includes indicating the use in the first message
Family equipment carries out the information of carrier sense, and the information includes the information that instruction carries out multiple frequency ranges of the carrier sense, with
And instruction carries out the information of the time of the carrier sense in each frequency range in the multiple frequency range, wherein indicating described
The information for the time for carrying out the carrier sense in each frequency range in multiple frequency ranges further comprises: indicating the user equipment
It is the information for periodically or aperiodically carrying out carrier sense in the corresponding band in the multiple frequency range；
B. the user equipment carries out carrier sense according to the first message；
C. the user equipment sends second message to the base station, wherein includes the carrier sense in the second message
As a result, the result of the carrier sense include with the presence or absence of conflict in each frequency range in the multiple frequency range, wherein
It is true and judging whether the resource in the frequency range is used for whether there is conflict in each frequency range in the multiple frequency range
Fixed.
2. according to the method described in claim 1, wherein, the corresponding band last week of the instruction in the multiple frequency range
The information for the time for carrying out the carrier sense to phase property includes:
Indicate the information with cycle period and offset corresponding to the corresponding band in the multiple frequency range.
3. according to the method described in claim 1, wherein, the instruction is non-in the corresponding band in the multiple frequency range
The information for periodically carrying out the time of the carrier sense includes:
The information for indicating and listening to window corresponding to the corresponding band in the multiple frequency range.
4. according to the method described in claim 3, wherein, corresponding to the corresponding band with the multiple frequency range
Listening to window includes listening to the time started and listening to the end time.
5. according to the method described in claim 3, wherein, corresponding to the corresponding band with the multiple frequency range
Listening to window includes listening to the time started and listening to the duration.
6. according to the method described in claim 1, wherein, the result of the carrier sense includes every in the multiple frequency range
The result measured in a frequency range.
7. method according to any one of claim 1 to 6, wherein the frequency range for carrying out the carrier sense is LTE communication
The unauthorized frequency range of system.
8. according to the method described in claim 7, wherein, the first message and the second message are in LTE communication system
It is sent in authorized spectrum band.
9. a kind of method that auxiliary carries out carrier sense on the base station of LTE communication system, comprising:
A. the base station sends first message at least one user equipment, wherein includes described in instruction in the first message
User equipment carries out the information of carrier sense, and the information includes the information that instruction carries out multiple frequency ranges of the carrier sense,
And instruction carries out the information of the time of the carrier sense in each frequency range in the multiple frequency range, wherein indicating in institute
The information for stating the time for carrying out the carrier sense in each frequency range in multiple frequency ranges further comprises: indicating that the user sets
Standby is the information for periodically or aperiodically carrying out carrier sense in the corresponding band in the multiple frequency range；
B. the base station receives the second message that the user equipment is sent, wherein includes the user in the second message
Equipment according to the first message carry out the carrier sense as a result, the result of the carrier sense is included in the multiple frequency
With the presence or absence of conflicting in each frequency range in section, wherein it is logical for whether there is conflict in each frequency range in the multiple frequency range
Cross judge the resource in the frequency range whether used and determine.
10. according to the method described in claim 9, wherein, the instruction is in the corresponding band in the multiple frequency range
The information for periodically carrying out the time of the carrier sense includes:
Indicate the information with cycle period and offset corresponding to the corresponding band in the multiple frequency range.
11. according to the method described in claim 9, wherein, the instruction is in the corresponding band in the multiple frequency range
The information for aperiodically carrying out the time of the carrier sense includes:
The information for indicating and listening to window corresponding to the corresponding band in the multiple frequency range.
12. according to the method for claim 11, wherein corresponding to the corresponding band with the multiple frequency range
Window of listening to include listening to the time started and to listen to the end time.
13. according to the method for claim 11, wherein corresponding to the corresponding band with the multiple frequency range
Window of listening to include listening to the time started and to listen to the duration.
14. according to the method described in claim 9, wherein, the result of the carrier sense includes in the multiple frequency range
The result measured in each frequency range.
15. the method according to any one of claim 9 to 14, wherein it is logical for LTE to carry out the frequency range of the carrier sense
The unauthorized frequency range of letter system.
16. according to the method for claim 15, wherein the first message and the second message are in LTE communication system
Authorized spectrum band on send.
17. a kind of equipment for carrying out carrier sense on the user equipment of LTE communication system, comprising:
Receiving module receives the first message sent from base station for the user equipment, wherein include in the first message
Indicate that the user equipment carries out the information of carrier sense, the information includes multiple frequency ranges that instruction carries out the carrier sense
Information, and indicate the information that the time of the carrier sense is carried out in each frequency range in the multiple frequency range, wherein
The information for the time that instruction carries out the carrier sense in each frequency range in the multiple frequency range further comprises: instruction institute
Stating user equipment is the letter for periodically or aperiodically carrying out carrier sense in the corresponding band in the multiple frequency range
Breath；
Module is listened to, for the user equipment according to the first message, carries out carrier sense；
Sending module sends second message to the base station for the user equipment, wherein include institute in the second message
State carrier sense as a result, the result of the carrier sense includes in each frequency range in the multiple frequency range with the presence or absence of punching
It is prominent, wherein in each frequency range in the multiple frequency range with the presence or absence of conflict be by judge the resource in the frequency range whether by
Using and determine.
18. a kind of equipment that auxiliary carries out carrier sense on the base station of LTE communication system, comprising:
Sending module sends first message at least one user equipment for the base station, wherein wrap in the first message
The information for indicating that the user equipment carries out carrier sense is included, the information includes multiple frequencies that instruction carries out the carrier sense
The information of section, and indicate the information that the time of the carrier sense is carried out in each frequency range in the multiple frequency range,
The information for the time that middle instruction carries out the carrier sense in each frequency range in the multiple frequency range further comprises: instruction
The user equipment is periodically or aperiodically to carry out carrier sense in the corresponding band in the multiple frequency range
Information；
Receiving module receives the second message that the user equipment is sent for the base station, wherein wrap in the second message
Include the user equipment according to the first message carry out the carrier sense as a result, the result of the carrier sense is included in
With the presence or absence of conflicting in each frequency range in the multiple frequency range, wherein whether being deposited in each frequency range in the multiple frequency range
It in conflict is determined and judging whether the resource in the frequency range is used.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410250760.8A CN105208668B (en) | 2014-06-06 | 2014-06-06 | A kind of carrier sensing method |
| PCT/IB2015/000960 WO2015185989A2 (en) | 2014-06-06 | 2015-05-22 | A method for carrier sensing |
| TW104117178A TW201608922A (en) | 2014-06-06 | 2015-05-28 | A method for carrier sensing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410250760.8A CN105208668B (en) | 2014-06-06 | 2014-06-06 | A kind of carrier sensing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105208668A CN105208668A (en) | 2015-12-30 |
| CN105208668B true CN105208668B (en) | 2019-06-18 |
Family
ID=54147237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410250760.8A Active CN105208668B (en) | 2014-06-06 | 2014-06-06 | A kind of carrier sensing method |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN105208668B (en) |
| TW (1) | TW201608922A (en) |
| WO (1) | WO2015185989A2 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106211350B (en) * | 2016-06-28 | 2019-06-28 | 北京工业大学 | A kind of unauthorized frequency range cut-in method based on receiving side carrier sense |
| CN108966355B (en) * | 2017-05-24 | 2021-06-08 | 华为技术有限公司 | Channel interception method, network side equipment and terminal |
| CN109392176B (en) * | 2017-08-11 | 2021-07-09 | 华为技术有限公司 | Information sending method and related equipment |
| US10555190B2 (en) | 2018-01-26 | 2020-02-04 | Telefonaktiebolaget Lm Ericsson (Publ) | Resolving hidden and exposed node problems using coordinated sensing |
| US10624126B2 (en) | 2018-02-16 | 2020-04-14 | At&T Intellectual Property I, L.P. | Close loop listen before talk to NR operation in unlicensed spectrum |
| US10834781B2 (en) | 2018-09-21 | 2020-11-10 | At&T Intellectual Property I, L.P. | Closed loop carrier sense multiple access with multiuser request to send and clear to send handshaking in an advanced wireless network |
| CN111277384B (en) * | 2019-02-27 | 2021-09-14 | 维沃移动通信有限公司 | Transmission resource indication method, transmission method, network equipment and terminal |
| CN115462169A (en) * | 2020-04-08 | 2022-12-09 | Idac控股公司 | Receiving node channel estimation |
| MX2023000447A (en) | 2020-07-07 | 2023-04-20 | Atxa Therapeutics Ltd | Thromboxane receptor antagonist formulations. |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012116489A1 (en) * | 2011-03-01 | 2012-09-07 | Renesas Mobile Corporation | Operating a wireless system in an unlicensed band |
| CN103069882A (en) * | 2010-08-13 | 2013-04-24 | 瑞典爱立信有限公司 | Dual operation of user equipment in licensed and unlicensed spectrum |
| WO2013059999A1 (en) * | 2011-10-26 | 2013-05-02 | Renesas Mobile Corporation | Flexible measurements in unlicensed band |
| CN103580840A (en) * | 2012-08-10 | 2014-02-12 | 捷讯研究有限公司 | TD LTE secondary component carrier in unlicensed bands |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2494132B (en) * | 2011-08-30 | 2014-02-12 | Broadcom Corp | Radio communications |
| WO2015106883A1 (en) * | 2014-01-15 | 2015-07-23 | Sony Corporation | Communications device |
-
2014
- 2014-06-06 CN CN201410250760.8A patent/CN105208668B/en active Active
-
2015
- 2015-05-22 WO PCT/IB2015/000960 patent/WO2015185989A2/en active Application Filing
- 2015-05-28 TW TW104117178A patent/TW201608922A/en unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103069882A (en) * | 2010-08-13 | 2013-04-24 | 瑞典爱立信有限公司 | Dual operation of user equipment in licensed and unlicensed spectrum |
| WO2012116489A1 (en) * | 2011-03-01 | 2012-09-07 | Renesas Mobile Corporation | Operating a wireless system in an unlicensed band |
| WO2013059999A1 (en) * | 2011-10-26 | 2013-05-02 | Renesas Mobile Corporation | Flexible measurements in unlicensed band |
| CN103580840A (en) * | 2012-08-10 | 2014-02-12 | 捷讯研究有限公司 | TD LTE secondary component carrier in unlicensed bands |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015185989A3 (en) | 2016-01-28 |
| WO2015185989A2 (en) | 2015-12-10 |
| TW201608922A (en) | 2016-03-01 |
| CN105208668A (en) | 2015-12-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105208668B (en) | A kind of carrier sensing method | |
| US11502722B1 (en) | Systems and methods for wireless coexistence in an unlicensed spectrum | |
| RU2703448C1 (en) | Srs configuration for unlicensed carriers | |
| CN106162900B (en) | D2D communication method on unlicensed frequency band, D2D communication device, terminal and base station | |
| US10117105B2 (en) | Network controller, station, and method for establishing guard period | |
| CN106686733B (en) | Signal processing method and base station | |
| EP2745544B1 (en) | Mechanisms to facilitate a telecommunication system to make use of bands which are not-licensed to the telecommunication system | |
| KR101925379B1 (en) | Method and apparatus for scheduling cts in a communication network | |
| CN107113867B (en) | Beacon transmission method for measurement in opportunistic spectrum access | |
| US10405345B2 (en) | Configuration of cellular network nodes | |
| US9763267B2 (en) | Techniques for using collision avoidance signaling for co-existence with unlicensed networks | |
| EP3883324B1 (en) | Data transmission methods | |
| CN107113878A (en) | Radio access node, communication terminal and the method wherein performed | |
| EP3331309B1 (en) | Data transmission method and device | |
| CN106550468B (en) | Data transmission method and base station | |
| KR20160101440A (en) | Apparatus and Method for LTE-U Coexistence with WiFi in Unlicensed Bands | |
| EP2869615B1 (en) | System, device and methods for dynamically triggered spectrum sensing in cognitive radio system | |
| JP6752879B2 (en) | Techniques for using traffic monitoring for coexistence with unlicensed networks | |
| JP2014526842A (en) | Use of non-uniform frequency bands for coexistence of multiple wireless communication technologies | |
| CN105338643A (en) | Method for eliminating IDC interference, mobile terminal and base station | |
| CN105451347B (en) | Eliminate method, mobile terminal and the base station of IDC interference | |
| US10951380B1 (en) | Optimizing uplink synchronization via dynamic PRACH configuration | |
| EP3780796A1 (en) | Clear channel listening method and apparatus, and device | |
| CN105554766B (en) | A kind of wireless resource allocation methods | |
| TWI552637B (en) | Base station and communicetion method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 201206 Pudong New Area Jinqiao Export Processing Zone, Nanjing Road, No. 388, Shanghai Applicant after: Shanghai NOKIA Baer Limited by Share Ltd Address before: 201206 Pudong New Area Jinqiao Export Processing Zone, Nanjing Road, No. 388, Shanghai Applicant before: Shanghai Alcatel-Lucent Co., Ltd. |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |