CN102763469B - The method of subscriber terminal equipment access network device and device - Google Patents

The method of subscriber terminal equipment access network device and device Download PDF

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Publication number
CN102763469B
CN102763469B CN201080060465.6A CN201080060465A CN102763469B CN 102763469 B CN102763469 B CN 102763469B CN 201080060465 A CN201080060465 A CN 201080060465A CN 102763469 B CN102763469 B CN 102763469B
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China
Prior art keywords
component carrier
subscriber terminal
access request
terminal equipment
indication information
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CN201080060465.6A
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Chinese (zh)
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CN102763469A (en
Inventor
杨涛
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Nokia Shanghai Bell Co Ltd
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Alcatel Lucent Shanghai Bell Co Ltd
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Publication of CN102763469A publication Critical patent/CN102763469A/en
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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/02—Selection of wireless resources by user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention provides method and the device of subscriber terminal equipment access network device.The receive channel of the network equipment is provided with multiple component carrier.The network equipment obtains the component carrier relevant information about multiple component carrier; According to component carrier relevant information, in multiple component carrier, determine that at least one-component carrier wave sends access request for subscriber terminal equipment or again sends access request; And sending one-component carrier indication information to subscriber terminal equipment, this component carrier indication information indicates at least one component carrier.On the basis of component carrier relevant information, the network equipment can according to the entirety of system or local circumstance, rational distributing user terminal equipment for sending or again send the component carrier of access request, thus effectively utilizes multiple component carrier resource, improves the performance of communication system.

Description

The method of subscriber terminal equipment access network device and device
Technical field
The present invention relates to access, particularly relate to method and the device of the subscriber terminal equipment access network device in the communication network adopting carrier aggregation technology.
Background technology
In LTE (LongTermEvolutionsystem) system, subscriber terminal equipment can only support a upstream components carrier wave (componentcarrier).Resource due to multi-upstream access channel is limited, can access the subscriber terminal equipment of a community i.e. limited simultaneously.When too much subscriber terminal equipment competes limited access channel resource to send access request simultaneously, will clash.Send the subscriber terminal equipment of access request failure, just need to resend access request.Subscriber terminal equipment, when resending access request, can be kept out of the way according to one the time that (backoff) time value determines to resend access request, thus avoid again clashing.
In lte-a system, in order to provide higher message transmission rate, in up link and down link, all introduce carrier aggregation technology, namely mobile terminal device can support multiple component carrier simultaneously.Such as, subscriber terminal equipment can support at most 5 component carriers in 100M bandwidth.
Summary of the invention
The present inventor recognizes, in the communication network introducing carrier aggregation technology, the method sending access request due to existing subscriber terminal equipment and resend access request all can only be carried out on one-component carrier wave, can not effectively utilize multiple component carrier, thus farthest can not realize the due performance of communication system.
Based on the understanding to background technology and the problems referred to above, if can, when subscriber terminal equipment sends access request, effectively utilize multiple component carrier resource will be very important.In addition, if can, when subscriber terminal equipment resends access request, effectively utilize multiple component carrier resource to be highly profitable.
An embodiment according to a first aspect of the invention, provide a kind of method accessing this network equipment in a network equipment for controlling a subscriber terminal equipment, the receive channel of this network equipment is provided with multiple component carrier.The method comprises the following steps:
A. the component carrier relevant information about described multiple component carrier is obtained;
B., according to described component carrier relevant information, in described multiple component carrier, determine that at least one-component carrier wave sends described access request for described subscriber terminal equipment or again sends described access request; And
C. send one-component carrier indication information to described subscriber terminal equipment, this component carrier indication information indicates at least one component carrier described.
On the basis of component carrier relevant information, the network equipment can according to the entirety of system or local circumstance, rational distributing user terminal equipment for sending or again send the component carrier of access request, thus effectively utilizes multiple component carrier resource, improves the performance of communication system.
An embodiment according to a second aspect of the invention, provide a kind of in a subscriber terminal equipment for accessing the method for a network equipment, the receive channel of this network equipment is provided with multiple component carrier.The method comprises the following steps:
A. receive a first component carrier indication information from the described network equipment, this first component carrier indication information indicates at least one component carrier and sends an access request for described subscriber terminal equipment;
B., according to described first component carrier indication information, at least one component carrier described, determine that first component carrier is for sending described access request; And
C. on described first component carrier, described access request is sent to the described network equipment
On the basis of the first component carrier indication information, subscriber terminal equipment reasonably can determine the component carrier sending access request, thus effectively utilizes multiple component carrier resource, improves the performance of communication system.
An embodiment according to a third aspect of the present invention, provide a kind of control device accessing this network equipment in a network equipment for controlling a subscriber terminal equipment, the receive channel of this network equipment is provided with multiple component carrier.This control device comprises:
First acquisition device, it is for obtaining the component carrier relevant information about described multiple component carrier;
A determining device, it is for according to described component carrier relevant information, in described multiple component carrier, determines that at least one-component carrier wave sends described access request for described subscriber terminal equipment; And
First dispensing device, it is for sending one-component carrier indication information to described subscriber terminal equipment, and this component carrier indication information indicates at least one component carrier described.
An embodiment according to a fourth aspect of the present invention, provide a kind of in a subscriber terminal equipment for accessing the access device of a network equipment, the receive channel of this network equipment is provided with multiple component carrier.This access device comprises:
A receiving system, it is for receiving a first component carrier indication information from the described network equipment, this first component carrier indication information indicates at least one component carrier and sends an access request for described subscriber terminal equipment;
First determining device, it is for according to described component carrier indication information, at least one component carrier described, determines that first component carrier is for sending described access request; And
First dispensing device, it for sending described access request to the described network equipment on described first component carrier.
Various aspects of the present invention are more clear by the explanation by specific embodiment hereinafter.
Accompanying drawing explanation
By reading the detailed description done non-limiting example done with reference to the following drawings, above and further feature, object and advantage of the present invention will become more apparent:
Fig. 1 is the flow chart accessing the method for this network equipment in the network device for controlling subscriber terminal equipment according to an embodiment of the invention;
Fig. 2 is the flow chart of the method for this network equipment that accesses for controlling subscriber terminal equipment in the network device according to still another embodiment of the invention;
Fig. 3 is the flow chart of the method for this network equipment that accesses for controlling subscriber terminal equipment in the network device according to still a further embodiment;
Fig. 4 be according to an embodiment of the invention in subscriber terminal equipment the flow chart for the method for access network device;
Fig. 5 be according to still another embodiment of the invention in subscriber terminal equipment for the flow chart of the method for access network device;
Fig. 6 be according to still a further embodiment in subscriber terminal equipment for the flow chart of the method for access network device;
Fig. 7 is the block diagram of control device according to an embodiment of the invention;
Fig. 8 is the block diagram of control device according to still another embodiment of the invention;
Fig. 9 is the block diagram of control device according to still a further embodiment;
Figure 10 is the block diagram of access device according to an embodiment of the invention;
Figure 11 is the block diagram of access device according to still another embodiment of the invention; And
Figure 12 is the block diagram of access device according to still a further embodiment.
Accompanying drawing mark identical or similar in accompanying drawing represents identical or similar parts.
Embodiment
An embodiment according to a first aspect of the invention, provides a kind of method accessing this network equipment in a network equipment for controlling a subscriber terminal equipment.
The network equipment can realize in several ways, such as base station, relay station etc.Subscriber terminal equipment can realize in several ways, routine mobile phone, notebook computer, palmtop PC etc.
The receive channel of the network equipment is provided with multiple component carrier.The receive channel of the network equipment and the network equipment for receiving the channel of subscriber terminal equipment control information and/or data message, corresponding to the transmitting channel of subscriber terminal equipment, such as, the up channel of cellular communication system.
Subscriber terminal equipment access network device refers to that subscriber terminal equipment is in order to set up with the network equipment operation that communication link does.If subscriber terminal equipment can successful access network device, subscriber terminal equipment and the network equipment just can continue next step operation and set up communication link; Otherwise subscriber terminal equipment needs the operation again attempting access network device.
Fig. 1 is according to an embodiment of the invention in the network device for controlling the flow chart of the method for subscriber terminal equipment access network device.
With reference to Fig. 1, the method comprising the steps of 110, and the network equipment obtains the component carrier relevant information about multiple component carrier.
The information that component carrier relevant information is namely relevant to multiple component carrier, in the access request number that such as, in multiple component carrier each component carrier receives, multiple component carrier, in the existing load capacity (as transmitted bit number, number of users) of each component carrier, multiple component carrier, each component carrier corresponds to the channel performance of subscriber terminal equipment (namely on certain component carrier, channel performance between subscriber terminal equipment and the network equipment, as bit error rate, signal interference ratio) and other information.Optionally, component carrier relevant information is that this predetermined component carrier allocation rule indicates the component carrier that can be used for access operation (namely send and receive access request) and the component carrier being not useable for access operation corresponding to one of multiple component carrier predetermined component carrier allocation rule.This predetermined component carrier allocation rule only can indicate one-component carrier wave or indicate multiple component carrier.
The method also comprises step 120, and the network equipment, according to component carrier relevant information, in multiple component carrier, determines that at least one-component carrier wave sends access request for subscriber terminal equipment or again sends access request.
The network equipment can adopt various ways to determine that at least one-component carrier wave sends access request or again send access request for subscriber terminal equipment according to component carrier relevant information.
In one embodiment, component carrier relevant information is the access request number that in multiple component carrier, each component carrier receives.If the network equipment allows subscriber terminal equipment to send access request on more than one component carrier, then can, by paid-in for each component carrier access request number compared with a predetermined request number thresholding, the component carrier of access request number lower than this predetermined request number thresholding be defined as sending access request for subscriber terminal equipment or again sending the component carrier of access request.If the network equipment only allows subscriber terminal equipment to send access request on one-component carrier wave, then can select the component carrier of access request minimum number, be defined as sending access request for subscriber terminal equipment or again sending the component carrier of access request.
In yet another embodiment, component carrier relevant information is the existing load capacity of each component carrier in multiple component carrier.If the network equipment allows subscriber terminal equipment to send access request on more than one component carrier, then can, by the existing load capacity of each component carrier compared with a predetermined negative carrying capacity thresholding, the component carrier of load capacity lower than this predetermined negative carrying capacity thresholding be defined as sending access request for subscriber terminal equipment or again sending the component carrier of access request.If the network equipment only allows subscriber terminal equipment to send access request on one-component carrier wave, then can select the component carrier that load capacity is minimum, be defined as sending access request for subscriber terminal equipment or again sending the component carrier of access request.
In a further embodiment, component carrier relevant information is the channel performance that in multiple component carrier, each component carrier corresponds to subscriber terminal equipment.If the network equipment allows subscriber terminal equipment to send access request on more than one component carrier, then can, by the channel performance corresponding to subscriber terminal equipment of each component carrier compared with a predetermined channel performance threshold, the component carrier of channel performance lower than this predetermined channel performance threshold be defined as sending access request for subscriber terminal equipment or again sending the component carrier of access request.If the network equipment only allows subscriber terminal equipment to send access request on one-component carrier wave, then can the best component carrier of selective channel performance, be defined as sending access request for subscriber terminal equipment or again sending the component carrier of access request.
The method also comprises step 130, the network equipment sends one-component carrier indication information to subscriber terminal equipment, this component carrier indication information indicates this at least one component carrier, namely the network equipment is by component carrier indication information, can be used at least one component carrier that subscriber terminal equipment sends access request or send access request again inform determined for the network equipment to subscriber terminal equipment.
On the basis of component carrier relevant information, the network equipment can according to the entirety of system or local circumstance, rational distributing user terminal equipment for sending or again send the component carrier of access request, thus effectively utilizes multiple component carrier resource, improves the performance of communication system.
Fig. 2 is the flow chart of the method for this network equipment that accesses for controlling subscriber terminal equipment in the network device according to still another embodiment of the invention.
With reference to Fig. 2, again access request is sent when at least one component carrier is used for subscriber terminal equipment, the method also comprises step 210, the network equipment obtains first back-off value corresponding at least one component carrier, this first back-off value is used to indicate the time that subscriber terminal equipment sends described access request again, and step 220, the network equipment sends the first back-off value to subscriber terminal equipment.
First back-off value can be an absolute time value or be a time variation amount relative to an absolute time value.The network equipment can obtain the first back-off value in several ways.Such as, be that subscriber terminal equipment Random assignment back-off value is as the first back-off value according to a predetermined back off time allocation rule.And for example, the situation of at least one component carrier indicated by component carrier relevant information, at least one component carrier determines that a back-off value is as the first back-off value.For example, when the total load at least one component carrier is lower than a predetermined total load threshold value, the first back-off value is a less back-off value, otherwise the first back-off value is a larger back-off value.
In this way, can be used for corresponding to subscriber terminal equipment all component carriers again sending access request (namely retransmitting access request), back-off value is same back-off value, i.e. the first back-off value.
Be the rational back-off value of determination that at least one component carrier is unified by the network equipment, subscriber terminal equipment just can simplify the selection of the component carrier for again sending access request, and effectively avoids access request conflict occurs again.
Fig. 3 is the flow chart of the method for this network equipment that accesses for controlling subscriber terminal equipment in the network device according to still a further embodiment.
With reference to Fig. 3, again access request is sent when at least one component carrier is used for subscriber terminal equipment, the method also comprises step 310, the network equipment obtains second back-off value of the one-component carrier wave corresponded at least one component carrier, and this second back-off value is used to indicate the time that subscriber terminal equipment again sends access request on this component carrier; And step 320, the network equipment sends the second back-off value to described subscriber terminal equipment.
Second back-off value can be an absolute time value or be a time variation amount relative to an absolute time value.The network equipment can obtain the second back-off value in several ways.Such as, be that subscriber terminal equipment Random assignment back-off value is as the second back-off value according to a predetermined back off time distribution principle.And for example, according to the information indicated by component carrier relevant information, determine the second back-off value.For example, on this component carrier, when between subscriber terminal equipment and the network equipment, channel performance is lower than a predetermined channel performance threshold value, the second back-off value is a less back-off value, otherwise the second back-off value is a larger back-off value.
In this way, can be used for corresponding to subscriber terminal equipment all component carriers again sending access request, back-off value is determined respectively, and the back-off value namely at least one component carrier corresponding to each component carrier can be different.
By the rational back-off value of determination that the network equipment is at least one component carrier difference, subscriber terminal equipment just can select the component carrier for again sending access request more accurately, and effectively avoids access request conflict occurs again.
An embodiment according to a second aspect of the present invention, provide a kind of in a subscriber terminal equipment for accessing the method for a network equipment.The receive channel of this network equipment is provided with multiple component carrier.
Fig. 4 be according to an embodiment of the invention in subscriber terminal equipment the flow chart for the method for access network device.
With reference to Fig. 4, the method comprising the steps of 410, and subscriber terminal equipment receives a first component carrier indication information from the network equipment, and this first component carrier indication information indicates at least one component carrier and sends an access request for subscriber terminal equipment.
The method also comprises step 420, and subscriber terminal equipment, according to the first component carrier indication information, at least one component carrier, determines that first component carrier is for sending access request.
The method also comprises step 430, and subscriber terminal equipment sends access request to the network equipment on the first component carrier.
When subscriber terminal equipment is limited to send access request on one-component carrier wave, the first component carrier indication information only indicates one-component carrier wave to send access request for subscriber terminal equipment.In this case, subscriber terminal equipment just sends access request on the unique component carrier indicated by the first component carrier information, to ask access network device.
When subscriber terminal equipment can send access request on multiple component carrier, the first component carrier indication information indicates multiple component carrier to send access request for subscriber terminal equipment.In this case, subscriber terminal equipment just can determine that in the multiple component carriers indicated by the first component carrier information one-component carrier wave is for sending access request, to ask access network device.
When subscriber terminal equipment can send access request on multiple component carrier, subscriber terminal equipment can select the component carrier for sending access request in several ways.Such as, subscriber terminal equipment is selected corresponding to the best component carrier of the channel performance between subscriber terminal equipment and the network equipment.And for example, subscriber terminal equipment selects the component carrier that history access success rate is the highest.
On the basis of the first component carrier indication information, subscriber terminal equipment reasonably can determine the component carrier sending access request, thus effectively utilizes multiple component carrier resource, improves the performance of communication system.
Fig. 5 be according to still another embodiment of the invention in subscriber terminal equipment for the flow chart of the method for access network device.
With reference to Fig. 5, after step 430, the method also comprises step 510, and subscriber terminal equipment obtains a second component carrier indication information, and this second component carrier indication information indicates at least one component carrier and again sends access request for subscriber terminal equipment.
Second component carrier indication information can identical from the component carrier indicated by the first component carrier indication information, completely different or part is identical.User terminal can obtain second component carrier indication information in several ways.Such as, receive second component carrier indication information from the network equipment, namely subscriber terminal equipment may be different for the candidate components carrier wave sending access request first from subscriber terminal equipment for the candidate components carrier wave again sending access request.And for example, the first component carrier indication information is set as second component carrier indication information, namely subscriber terminal equipment is identical for the candidate components carrier wave sending access request first with subscriber terminal equipment for the candidate components carrier wave again sending access request.For another example, the component carrier indication information corresponding to the access request of previous repeating transmission is set as second component carrier indication information by subscriber terminal equipment.
The method also comprises step 520, and subscriber terminal equipment obtains first back-off value.This first back-off value corresponds at least one component carrier again sending access request for subscriber terminal equipment.This first back-off value is used to indicate the time that subscriber terminal equipment sends access request again.That is, the back-off value that again sends corresponding to access request on different component carriers of subscriber terminal equipment is identical.
First back-off value can be an absolute time value or be a time variation amount relative to an absolute time value.Subscriber terminal equipment can obtain the first back-off value in several ways.
In one embodiment, subscriber terminal equipment receives the first back-off value from the network equipment.Such as, subscriber terminal equipment receives the first back-off value T1 relative to the moment t1 sending access request first from the network equipment, then subscriber terminal equipment can send access request in any moment after the t1+T1 moment again.And for example, subscriber terminal equipment receives the first back-off value T2 relative to the moment t2 receiving the first back-off value from the network equipment, then subscriber terminal equipment can send access request in any moment after the t2+T2 moment again.For another example, it is absolute moment t3 that subscriber terminal equipment receives the first back-off value from the network equipment, then subscriber terminal equipment can send access request in any moment after the t3 moment again.
In a further embodiment, subscriber terminal equipment oneself can determine the first back-off value.Such as, the first back-off value is produced at random according to a predetermined back off time generation rule.
The method also comprises step 530, and subscriber terminal equipment, according to second component carrier indication information, is sending at least one component carrier of access request again for subscriber terminal equipment, determines that a second component carrier wave is for again sending access request.
Subscriber terminal equipment can adopt various ways to determine second component carrier wave.
When subscriber terminal equipment is limited again to send access request on one-component carrier wave, second component carrier indication information only indicates one-component carrier wave again to send access request for subscriber terminal equipment.In this case, subscriber terminal equipment just again sends access request, to ask access network device on the unique component carrier (i.e. second component carrier wave) indicated by second component carrier information.
When subscriber terminal equipment again can send access request on multiple component carrier, second component carrier indication information indicates multiple component carrier again to send access request for subscriber terminal equipment.In this case, subscriber terminal equipment just can determine in the multiple component carriers indicated by second component carrier information that one-component carrier wave (i.e. second component carrier wave) is for again sending access request, to ask access network device.
When subscriber terminal equipment again can send access request on multiple component carrier, subscriber terminal equipment can select the second component carrier wave for again sending access request in several ways.Such as, subscriber terminal equipment is selected to correspond to the best component carrier of channel performance between subscriber terminal equipment and the network equipment as second component carrier wave.And for example, subscriber terminal equipment selects history to access the highest component carrier of success rate as second component carrier wave.
The method also comprises step 540, the time of subscriber terminal equipment indicated by the first back-off value, second component carrier wave sends access request again to the network equipment.
The back-off value that can be used for all component carriers again sending access request owing to corresponding to subscriber terminal equipment is a back-off value, i.e. the first back-off value, subscriber terminal equipment when determining second component carrier wave, just without the need to considering the factor of back-off value.Therefore, the process that subscriber terminal equipment retransmits access request is simplified, thus reduces processing delay.
In addition, on the basis of second component carrier indication information, subscriber terminal equipment reasonably can determine the component carrier again sending access request, thus effectively utilizes multiple component carrier resource, improves the performance of communication system.
Fig. 6 be according to still a further embodiment in subscriber terminal equipment for the flow chart of the method for access network device.
With reference to Fig. 6, after step 430, the method also comprises step 610, and user terminal obtains a three-component carrier indication information, and this three-component carrier indication information indicates at least one component carrier and again sends access request for subscriber terminal equipment.
Three-component carrier indication information can identical from the component carrier indicated by the first component carrier indication information, completely different or part is identical.User terminal can obtain three-component carrier indication information in several ways.Such as, three-component carrier indication information is received from the network equipment.And for example, the first component carrier indication information is set as three-component carrier indication information.
The method also comprises step 620, user terminal obtains at least one back-off value, each back-off value corresponds respectively to each component carrier again sent for subscriber terminal equipment at least one component carrier of access request, and each back-off value is used to indicate the time that subscriber terminal equipment again sends described access request on the component carrier of correspondence.That is, each component carrier all has each self-corresponding back-off value.
Each back-off value can be an absolute time value or be a time variation amount relative to an absolute time value.Subscriber terminal equipment can obtain at least one back-off value in several ways.
In one embodiment, what subscriber terminal equipment received from the network equipment corresponds to the back-off value again sending each component carrier at least one component carrier of access request for subscriber terminal equipment.
In yet another embodiment, subscriber terminal equipment oneself can determine at least back-off value.Such as, according to a predetermined back off time generation rule, for again sending each component carrier at least one component carrier of access request for subscriber terminal equipment, back-off value is produced at random.
The method also comprises step 630, user terminal is according at least one back-off value and three-component carrier indication information, again sending at least one component carrier of access request for subscriber terminal equipment, determining that a three-component carrier wave is for again sending access request.
User terminal determines three-component carrier wave by various ways.
When subscriber terminal equipment is limited again to send access request on one-component carrier wave, three-component carrier indication information only indicates one-component carrier wave again to send access request for subscriber terminal equipment.In this case, subscriber terminal equipment just again sends access request, to ask access network device on the unique component carrier (i.e. three-component carrier wave) indicated by three-component carrier information.
When subscriber terminal equipment again can send access request on multiple component carrier, three-component carrier indication information indicates multiple component carrier again to send access request for subscriber terminal equipment.In this case, subscriber terminal equipment just can determine in the multiple component carriers indicated by three-component carrier information that one-component carrier wave (i.e. three-component carrier wave) is for again sending access request, to ask access network device.
When subscriber terminal equipment again can send access request on multiple component carrier, subscriber terminal equipment can select the three-component carrier wave for again sending access request in several ways.In one embodiment, the component carrier that subscriber terminal equipment selection back-off value is minimum is as three-component carrier wave.In yet another embodiment, subscriber terminal equipment is selected back-off value to be less than a predetermined back-off value thresholding and load capacity to be less than the component carrier of a predetermined load capacity threshold value as three-component carrier wave.
The method also comprises step 640, the time indicated by the back-off value of user terminal corresponding to three-component carrier wave, three-component carrier wave sends access request again to the network equipment.
The all component carriers that can be used for again sending access request owing to corresponding to subscriber terminal equipment have each self-corresponding back-off value, subscriber terminal equipment is when determining three-component carrier wave, just can consider the characteristic of back-off value and the component carrier indicated by three-component carrier indication information, reasonably determine the component carrier again sending access request, thus effectively utilize multiple component carrier resource, improve the performance of communication system.
The above-mentioned several scenes about sending access request and the method that again sends request and can be used for communication system, the switching of such as subscriber terminal equipment initial access network equipment, subscriber terminal equipment, the uplink/downlink data under up out of step conditions arrive and Radio Link Failure etc.
An embodiment according to a third aspect of the present invention, provides a kind of control device accessing this network equipment in a network equipment for controlling a subscriber terminal equipment.The receive channel of this network equipment is provided with multiple component carrier.
Fig. 7 is the block diagram of control device 700 according to an embodiment of the invention.
With reference to Fig. 7, control device 700 comprises first acquisition device 710, determining device 720 and first dispensing device 730.
First acquisition device 710 is for obtaining the component carrier relevant information about described multiple component carrier.Determining device 720, for according to component carrier relevant information, in multiple component carrier, determines that at least one-component carrier wave sends access request for subscriber terminal equipment or again sends access request.First dispensing device 730 is for sending one-component carrier indication information to subscriber terminal equipment, and this component carrier indication information indicates at least one component carrier.
Fig. 8 is the block diagram of control device 800 according to still another embodiment of the invention.
With reference to Fig. 8, again send access request when at least one component carrier of institute is used for subscriber terminal equipment, control device 800 also comprises the second acquisition device 810 and the second dispensing device 820.
Second acquisition device 810 is for obtaining first back-off value corresponding at least one component carrier, and this first back-off value is used to indicate the time that subscriber terminal equipment sends access request again.Second dispensing device 820 is for sending the first back-off value to subscriber terminal equipment.
Fig. 9 is the block diagram of control device 900 according to still a further embodiment.
With reference to Fig. 9, again send access request when at least one component carrier is used for subscriber terminal equipment, control device 900 also comprises the 3rd acquisition device 910 and the 3rd dispensing device 920.
3rd acquisition device 910 is for obtaining second back-off value corresponding to the one-component carrier wave at least one component carrier, and this second back-off value is used to indicate the time that subscriber terminal equipment again sends access request on this component carrier.3rd dispensing device 920 is for sending the second back-off value to subscriber terminal equipment.
An embodiment according to a fourth aspect of the present invention, provide a kind of in a subscriber terminal equipment for accessing the access device of a network equipment.The receive channel of this network equipment is provided with multiple component carrier.
Figure 10 is the block diagram of access device 1000 according to an embodiment of the invention
This access device 1000 comprises a receiving system 1010, first determining device 1020 and first dispensing device 1030.
Receiving system 1010 is for receiving a first component carrier indication information from the network equipment, this first component carrier indication information indicates at least one component carrier and sends an access request for subscriber terminal equipment.First determining device 1020, for according to component carrier indication information, at least one component carrier, determines that first component carrier is for sending access request.First dispensing device 1030 for sending access request to the network equipment on the first component carrier.
Figure 11 is the block diagram of access device 1100 according to still another embodiment of the invention.
With reference to Figure 11, access device 1100 also comprises first acquisition device 1110, second determining device 1120 and second dispensing device 1130.
First acquisition device 1110 is for obtaining a second component carrier indication information, and this second component carrier indication information indicates at least one component carrier and again sends described access request for subscriber terminal equipment.First acquisition device 1110 is also for obtaining first back-off value, this first back-off value corresponds at least one component carrier again sending access request for subscriber terminal equipment, and this first back-off value is used to indicate the time that subscriber terminal equipment sends access request again.
Second determining device 1120, for according to second component carrier indication information, is sending at least one component carrier of access request again for subscriber terminal equipment, determines that a second component carrier wave is for again sending access request.Second dispensing device 1130, for the time indicated by the first back-off value, second component carrier wave sends access request again to the described network equipment.
Figure 12 is the block diagram of access device 1200 according to still a further embodiment.
With reference to Figure 12, access device 1200 also comprises second acquisition device 1210, the 3rd determining device 1220 and the 3rd dispensing device 1230.
Second acquisition device 1210 is for obtaining a three-component carrier indication information, and this three-component carrier indication information indicates at least one component carrier and again sends access request for subscriber terminal equipment.Second acquisition device 1210 is also for obtaining at least one back-off value, each back-off value corresponds respectively to each component carrier again sent for subscriber terminal equipment at least one component carrier described in access request, and each back-off value is used to indicate the time that subscriber terminal equipment again sends access request on the component carrier of correspondence.
3rd determining device 1220 is for according at least one back-off value and three-component carrier indication information, again sending at least one component carrier of access request for subscriber terminal equipment, determining that a three-component carrier wave is for again sending access request.3rd dispensing device 1230, for the time indicated by the back-off value corresponding to three-component carrier wave, three-component carrier wave sends access request again to the network equipment.
In one embodiment, the back-off value corresponding to three-component carrier wave is minimum at least one back-off value.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present invention or essential characteristic, the present invention can be realized in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present invention is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the present invention.Any Reference numeral in claim should be considered as the claim involved by limiting.In addition, obviously " comprising " one word do not get rid of other unit or step, odd number does not get rid of plural number.Multiple devices of stating in system claims also can be realized by software or hardware by a device.First, second word such as grade is used for representing title, and does not represent any specific order.

Claims (11)

1. in a network equipment, access a method for this network equipment for controlling a subscriber terminal equipment, the receive channel of this network equipment is provided with multiple component carrier, and the method comprises the following steps:
A. the component carrier relevant information about described multiple component carrier is obtained;
B., according to described component carrier relevant information, in described multiple component carrier, determine that at least one-component carrier wave sends described access request for described subscriber terminal equipment or again sends described access request; And
C. send one-component carrier indication information to described subscriber terminal equipment, this component carrier indication information indicates at least one component carrier described;
Wherein, again send described access request when at least one component carrier described is used for described subscriber terminal equipment, after described step B, further comprising the steps of:
-obtaining first back-off value corresponding at least one component carrier described, this first back-off value is used to indicate the time that described subscriber terminal equipment sends described access request again; And
-send described first back-off value to described subscriber terminal equipment.
2. in a network equipment, access a method for this network equipment for controlling a subscriber terminal equipment, the receive channel of this network equipment is provided with multiple component carrier, and the method comprises the following steps:
A. the component carrier relevant information about described multiple component carrier is obtained;
B., according to described component carrier relevant information, in described multiple component carrier, determine that at least one-component carrier wave sends described access request for described subscriber terminal equipment or again sends described access request; And
C. send one-component carrier indication information to described subscriber terminal equipment, this component carrier indication information indicates at least one component carrier described;
Wherein, again send described access request when at least one component carrier described is used for described subscriber terminal equipment, after described step B, further comprising the steps of:
-acquisition corresponds to second back-off value of the one-component carrier wave at least one component carrier described, and this second back-off value is used to indicate the time that described subscriber terminal equipment again sends described access request on this component carrier; And
-send described second back-off value to described subscriber terminal equipment.
3. method according to claim 1 and 2, wherein, described component carrier relevant information comprises at least one item in following message: in the access request number that in described multiple component carrier, each component carrier receives, described multiple component carrier, in the existing load capacity of each component carrier, described multiple component carrier, each component carrier corresponds to the channel performance of described subscriber terminal equipment.
4. in a subscriber terminal equipment for accessing a method for a network equipment, the receive channel of this network equipment is provided with multiple component carrier, and the method comprises the following steps:
A. receive a first component carrier indication information from the described network equipment, this first component carrier indication information indicates at least one component carrier and sends an access request for described subscriber terminal equipment;
B., according to described first component carrier indication information, at least one component carrier described, determine that first component carrier is for sending described access request; And
C. on described first component carrier, described access request is sent to the described network equipment;
Wherein, after described step c, further comprising the steps of:
-obtaining a second component carrier indication information, this second component carrier indication information indicates at least one component carrier and again sends described access request for described subscriber terminal equipment;
-obtain first back-off value, this first back-off value corresponds to and again sends at least one component carrier described in described access request for described subscriber terminal equipment, and this first back-off value is used to indicate the time that described subscriber terminal equipment sends described access request again;
-according to described second component carrier indication information, again sending at least one component carrier described in described access request for described subscriber terminal equipment, determining that a second component carrier wave is for again sending described access request; And
-time indicated by described first back-off value, described second component carrier wave sends described access request again to the described network equipment.
5. in a subscriber terminal equipment for accessing a method for a network equipment, the receive channel of this network equipment is provided with multiple component carrier, and the method comprises the following steps:
A. receive a first component carrier indication information from the described network equipment, this first component carrier indication information indicates at least one component carrier and sends an access request for described subscriber terminal equipment;
B., according to described first component carrier indication information, at least one component carrier described, determine that first component carrier is for sending described access request; And
C. on described first component carrier, described access request is sent to the described network equipment;
Wherein, after described step c, further comprising the steps of:
-obtaining a three-component carrier indication information, this three-component carrier indication information indicates at least one component carrier and again sends described access request for described subscriber terminal equipment;
-obtain at least one back-off value, each back-off value corresponds respectively to each component carrier again sent for described subscriber terminal equipment at least one component carrier described in described access request, and each back-off value is used to indicate the time that described subscriber terminal equipment again sends described access request on the component carrier of correspondence;
-according at least one back-off value described and described three-component carrier indication information, again sending at least one component carrier described in described access request for described subscriber terminal equipment, determining that a three-component carrier wave is for again sending described access request; And
-time indicated by back-off value corresponding to described three-component carrier wave, described three-component carrier wave sends described access request again to the described network equipment.
6. method according to claim 5, wherein, the back-off value corresponding to described three-component carrier wave is minimum at least one back-off value described.
7. in a network equipment, access a control device for this network equipment for controlling a subscriber terminal equipment, the receive channel of this network equipment is provided with multiple component carrier, and this control device comprises:
First acquisition device, it is for obtaining the component carrier relevant information about described multiple component carrier;
A determining device, it is for according to described component carrier relevant information, in described multiple component carrier, determines that at least one-component carrier wave sends described access request for described subscriber terminal equipment or again sends described access request; And
First dispensing device, it is for sending one-component carrier indication information to described subscriber terminal equipment, and this component carrier indication information indicates at least one component carrier described;
Wherein, again send described access request when at least one component carrier described is used for described subscriber terminal equipment, also comprise:
Second acquisition device, it is for obtaining first back-off value corresponding at least one component carrier described, and this first back-off value is used to indicate the time that described subscriber terminal equipment sends described access request again; And
Second dispensing device, it is for sending described first back-off value to described subscriber terminal equipment.
8. in a network equipment, access a control device for this network equipment for controlling a subscriber terminal equipment, the receive channel of this network equipment is provided with multiple component carrier, and this control device comprises:
First acquisition device, it is for obtaining the component carrier relevant information about described multiple component carrier;
A determining device, it is for according to described component carrier relevant information, in described multiple component carrier, determines that at least one-component carrier wave sends described access request for described subscriber terminal equipment or again sends described access request; And
First dispensing device, it is for sending one-component carrier indication information to described subscriber terminal equipment, and this component carrier indication information indicates at least one component carrier described;
Wherein, again send described access request when at least one component carrier described is used for described subscriber terminal equipment, also comprise:
3rd acquisition device, it is for obtaining second back-off value corresponding to the one-component carrier wave at least one component carrier described, and this second back-off value is used to indicate the time that described subscriber terminal equipment again sends described access request on this component carrier; And
3rd dispensing device, it is for sending described second back-off value to described subscriber terminal equipment.
9. in a subscriber terminal equipment for accessing an access device for a network equipment, the receive channel of this network equipment is provided with multiple component carrier, and this access device comprises:
A receiving system, it is for receiving a first component carrier indication information from the described network equipment, this first component carrier indication information indicates at least one component carrier and sends an access request for described subscriber terminal equipment;
First determining device, it is for according to described component carrier indication information, at least one component carrier described, determines that first component carrier is for sending described access request; And
First dispensing device, it for sending described access request to the described network equipment on described first component carrier;
First acquisition device, it is for obtaining a second component carrier indication information, and this second component carrier indication information indicates at least one component carrier and again sends described access request for described subscriber terminal equipment;
This first acquisition device is also for obtaining first back-off value, this first back-off value corresponds to and again sends at least one component carrier described in described access request for described subscriber terminal equipment, and this first back-off value is used to indicate the time that described subscriber terminal equipment sends described access request again;
Second determining device, it is for according to described second component carrier indication information, again sending at least one component carrier described in described access request for described subscriber terminal equipment, determining that a second component carrier wave is for again sending described access request; And
Second dispensing device, it again sends described access request to the described network equipment for the time indicated by described first back-off value on described second component carrier wave.
10. in a subscriber terminal equipment for accessing an access device for a network equipment, the receive channel of this network equipment is provided with multiple component carrier, and this access device comprises:
A receiving system, it is for receiving a first component carrier indication information from the described network equipment, this first component carrier indication information indicates at least one component carrier and sends an access request for described subscriber terminal equipment;
First determining device, it is for according to described component carrier indication information, at least one component carrier described, determines that first component carrier is for sending described access request; And
First dispensing device, it for sending described access request to the described network equipment on described first component carrier;
Second acquisition device, obtain a three-component carrier indication information, this three-component carrier indication information indicates at least one component carrier and again sends described access request for described subscriber terminal equipment;
This second acquisition device is also for obtaining at least one back-off value, each back-off value corresponds respectively to each component carrier again sent for described subscriber terminal equipment at least one component carrier described in described access request, and each back-off value is used to indicate the time that described subscriber terminal equipment again sends described access request on the component carrier of correspondence;
3rd determining device, it is for according at least one back-off value described and described three-component carrier indication information, again sending at least one component carrier described in described access request for described subscriber terminal equipment, determining that a three-component carrier wave is for again sending described access request; And
3rd dispensing device, it, for the time indicated by the back-off value corresponding to described three-component carrier wave, described three-component carrier wave sends described access request again to the described network equipment.
11. access devices according to claim 10, wherein, the back-off value corresponding to described three-component carrier wave is minimum at least one back-off value described.
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