CN103249168B - Accidental access method, subscriber equipment, base station and communication system - Google Patents
Accidental access method, subscriber equipment, base station and communication system Download PDFInfo
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- CN103249168B CN103249168B CN201210023441.4A CN201210023441A CN103249168B CN 103249168 B CN103249168 B CN 103249168B CN 201210023441 A CN201210023441 A CN 201210023441A CN 103249168 B CN103249168 B CN 103249168B
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Abstract
The invention provides accidental access method, subscriber equipment, base station and communication system.Does this accidental access method comprise: receive the HS-SCCH that base station sends? order; Do you resolve described HS-SCCH? order, to detect described HS-SCCH? the quantity of the access lead signature that order carries; If detect and know described HS-SCCH? order does not carry random access guiding signature, then according to the Transmission Time Interval TTI type that subscriber equipment is supported, from the pre-assigned random access guiding signature resources in base station, select random access guiding to sign, and to have signed Stochastic accessing according to selected random access guiding.According to accidental access method provided by the invention, subscriber equipment, base station and communication system, achieve reliable Stochastic accessing.
Description
Technical field
The present invention relates to radio access technology, particularly relate to a kind of accidental access method, subscriber equipment, base station and communication system, belong to communication technical field.
Background technology
At third generation partner program (3rdGenerationPartnershipProject, 3GPP) Wideband Code Division Multiple Access (WCDMA) (Wide-bandCodeDivisionMultipleAccess, in the R11 version of WCDMA) system, in order to improve subscriber equipment (UserEquipment, UE) at cell forward access channel (CellForwardAccessChannel, CELL-FACH) downstream data rate under state, introduces and strengthens these new features of CELL-FACH further.By these new features, UE can in CELL-FACH state by high speed descending sharing channel (HighSpeedDownlinkSharedChannel, HS-DSCH) downlink data receiving, allow UE to send High-Speed Dedicated Physical Control Channel (HighSpeedDedicatedPhysicalControlChannel when there is no upstream data simultaneously, HS-DPCCH), thus obtain the feedback information of the downlink data that HS-DSCH is correlated with, i.e. correct response (Acknowledgement, or incorrect response (Non-Acknowledgement ACK), NACK), and the channel quality instruction of the down channel measured, the performance of the descending HS-DSCH of further enhancing.
In order to realize above-mentioned function, UE needs the resource being obtained HS-DPCCH in the cell--fach state by Stochastic accessing.Therefore, how Stochastic accessing is the major issue needing to solve to UE.
Summary of the invention
The invention provides a kind of accidental access method, subscriber equipment, base station and communication system, in order to realize reliable random access guiding.
According to an aspect of the present invention, a kind of accidental access method is provided, comprises:
Receive the downlink high-speed shared control channel order HS-SCCHorder that base station sends;
Resolve described HS-SCCHorder, to detect the quantity of the access lead signature that described HS-SCCHorder carries;
Know that if detect described HS-SCCHorder does not carry random access guiding signature, then according to the Transmission Time Interval TTI type that subscriber equipment is supported, from the pre-assigned random access guiding signature resources in described base station, select random access guiding to sign, and carry out Stochastic accessing according to selected random access guiding signature.
According to a further aspect in the invention, a kind of subscriber equipment is also provided, comprises:
First receiver module, for receiving the downlink high-speed shared control channel order HS-SCCHorder that base station sends;
Parsing module, for resolving described HS-SCCHorder, to detect the quantity of the random access guiding signature that described HS-SCCHorder carries;
First Stochastic accessing module, if know that described HS-SCCHorder does not carry random access guiding signature for detecting, then according to the Transmission Time Interval TTI type that subscriber equipment is supported, from the pre-assigned random access guiding signature resources in described base station, select random access guiding to sign, and carry out Stochastic accessing according to selected random access guiding signature.
According to another aspect of the invention, another kind of accidental access method is also provided, comprises:
For random access guiding signature resources allocated in advance by subscriber equipment;
According to Stochastic accessing load, the quantity of the random access guiding signature that HS-SCCHorder carries is configured;
Described HS-SCCHorder is sent to described subscriber equipment, after receiving described HS-SCCHorder to make described subscriber equipment, know that if detect described HS-SCCHorder does not carry random access guiding signature, then according to the Transmission Time Interval TTI type that described subscriber equipment is supported, from described pre-assigned random access guiding signature resources, select random access guiding to sign, and carry out Stochastic accessing according to selected random access guiding signature.
According to another aspect of the invention, a kind of base station is also provided, comprises:
Resource distribution module, for allocating random access guiding signature resources in advance for subscriber equipment;
Command set module, for according to Stochastic accessing load, is configured the quantity of the random access guiding signature that HS-SCCHorder carries;
Order sending module, for sending described HS-SCCHorder to described subscriber equipment, after receiving described HS-SCCHorder to make described subscriber equipment, know that if detect described HS-SCCHorder does not carry random access guiding signature, then according to the Transmission Time Interval TTI type that described subscriber equipment is supported, from described pre-assigned random access guiding signature resources, select random access guiding to sign, and carry out Stochastic accessing according to selected random access guiding signature.
According to another aspect of the invention, another kind of accidental access method is also provided, comprises:
Receive the HS-SCCHorder that base station sends, described HS-SCCHorder carries a random access guiding signature;
Whether the TTI type that the random access guiding signature entrained by judgement is corresponding is the TTI type that subscriber equipment is supported;
If the Transmission Time Interval TTI type of described random access guiding signature correspondence is the TTI type that subscriber equipment is supported, then the random access guiding carried described in basis signature carries out Stochastic accessing; If the TTI type that described random access guiding signature is corresponding is not the TTI type that subscriber equipment is supported, then from the pre-assigned random access guiding signature resources in described base station, select random access guiding to sign, and carry out Stochastic accessing according to selected random access guiding signature.
In accordance with a further aspect of the present invention, another kind of subscriber equipment is also provided, comprises:
Second receiver module, for receiving the downlink high-speed shared control channel order HS-SCCHorder that base station sends, described HS-SCCHorder carries a random access guiding signature;
Second Stochastic accessing module, if be the TTI type that subscriber equipment is supported for the Transmission Time Interval TTI type that described random access guiding signature is corresponding, carries out Stochastic accessing according to entrained random access guiding signature; If the Transmission Time Interval TTI type that described random access guiding signature is corresponding is not the TTI type that subscriber equipment is supported, then from the pre-assigned random access guiding signature resources in described base station, select random access guiding to sign, and carry out Stochastic accessing according to selected random access guiding signature.
In accordance with a further aspect of the present invention, also provide a kind of communication system, comprise base station and subscriber equipment, wherein:
Described base station is used for sending HS-SCCHorder to described subscriber equipment;
The described HS-SCCHorder that described subscriber equipment sends for receiving described base station; Resolve described HS-SCCHorder, to detect the quantity of the random access guiding signature that described HS-SCCHorder carries; Know that if detect described HS-SCCHorder does not carry random access guiding signature, then according to the Transmission Time Interval TTI type that described subscriber equipment is supported, from the pre-assigned random access guiding signature resources in described base station, select random access guiding to sign, and carry out Stochastic accessing according to selected random access guiding signature.
In accordance with a further aspect of the present invention, also provide another kind of communication system, comprise base station and subscriber equipment, wherein:
The described HS-SCCHorder that described subscriber equipment sends for receiving described base station; If the Transmission Time Interval TTI type that described random access guiding signature is corresponding is the TTI type that described subscriber equipment is supported, then carry out Stochastic accessing according to described random access guiding signature; If the Transmission Time Interval TTI type that described random access guiding signature is corresponding is not the TTI type that described subscriber equipment is supported, then from the pre-assigned random access guiding signature resources in described base station, select random access guiding to sign, and carry out Stochastic accessing according to selected random access guiding signature.
According to accidental access method provided by the invention, subscriber equipment, base station and communication system, subscriber equipment is resolved by the HS-SCCHorder sent base station, and perform respective handling according to resolving the different situations of carrying random access guiding signature obtained, obtain the random access guiding signature for completing Stochastic accessing, thus achieve reliable Stochastic accessing.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the system architecture diagram of the accidental access method for realizing the embodiment of the present invention one;
Fig. 2 is the schematic flow sheet of the accidental access method of the embodiment of the present invention one;
Fig. 3 is the structural representation of the subscriber equipment of the embodiment of the present invention five;
Fig. 4 is the schematic flow sheet of the accidental access method of the embodiment of the present invention six;
Fig. 5 is the structural representation of the subscriber equipment of the embodiment of the present invention seven.
Fig. 6 is the structural representation of the base station of the embodiment of the present invention eight.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment one
Fig. 1 is the system architecture diagram of the accidental access method for realizing the embodiment of the present invention one.As shown in Figure 1, this system comprises at least one subscriber equipment (UserEquipment in base station (Node-B) and base station range, UE), be described from the accidental access method of angle to the embodiment of the present invention one of subscriber equipment below.
Fig. 2 is the schematic flow sheet of the accidental access method of the embodiment of the present invention one.As shown in Figure 2, this accidental access method comprises the following steps:
Step S201, receives the downlink high-speed shared control channel order (HS-SCCHorder) that base station sends;
Step S202, resolves described HS-SCCHorder, to detect the quantity of the random access guiding (Preamble) signature (signature) that described HS-SCCHorder carries;
Step S203, know that if detect described HS-SCCHorder does not carry random access guiding signature, then according to the Transmission Time Interval (TransmissionTimeInterval that subscriber equipment is supported, TTI) type, from the pre-assigned random access guiding signature resources in base station, select random access guiding to sign, and carry out Stochastic accessing according to selected random access guiding signature.
Particularly, UE receives the HS-SCCHorder that Node-B sends, and resolves HS-SCCHorder, and carries out respective handling according to the configuration status of random access guiding signature in HS-SCCHorder.Both can carry random access guiding signature in HS-SCCHorder, also can not carry random access guiding signature.If UE is by resolving HS-SCCHorder, detect that HS-SCCHorder does not carry random access guiding signature, then the TTI type can supported according to self, selects random access guiding to sign from the pre-assigned random access guiding signature resources in base station.
Optionally, resolve described HS-SCCHorder, also comprise to detect after described HS-SCCHorder carries the quantity of random access guiding signature: know that if detect described HS-SCCHorder carries a random access guiding signature, and described in TTI type corresponding to the random access guiding signature that carries be the TTI type that subscriber equipment is supported, then according to described in the random access guiding signature that carries carry out Stochastic accessing; Know that if detect described HS-SCCHorder carries a random access guiding signature, and described in TTI type corresponding to the random access guiding signature that carries be not the TTI type that described subscriber equipment is supported, then from the pre-assigned random access guiding signature resources in described base station, select random access guiding to sign, and carry out Stochastic accessing according to selected random access guiding signature.
Optionally, resolve described HS-SCCHorder, also comprise to detect after described HS-SCCHorder carries the quantity of random access guiding signature: know that if detect described HS-SCCHorder carries at least two random access guiding signatures corresponding to different TTI type, then from described at least two random access guidings signature, select random access guiding corresponding to the TTI type of described subscriber equipment support to sign and carry out Stochastic accessing.
Optionally, also comprise before the HS-SCCHorder that described reception base station sends: obtain the pre-assigned random access guiding signature resources in described base station.
Optionally, resolve described HS-SCCHorder, with detect described HS-SCCHorder carry random access guiding signature quantity comprise: resolve 8 bits shared by described HS-SCCHorder; If described 8 bits are 0, then know that described HS-SCCHorder does not carry random access guiding signature; If described 8 bits are not 0 entirely, then according to the sequence code corresponding with described 8 bits, inquire about the random access guiding signature entrained by described HS-SCCHorder.
According to the accidental access method of above-described embodiment, subscriber equipment is resolved by the HS-SCCHorder sent base station, and perform respective handling according to the different situations of resolving the random access guiding the carried signature obtained, obtain the random access guiding signature for completing Stochastic accessing, thus achieve reliable Stochastic accessing.
Embodiment two
On the basis of above-described embodiment one, in Node-B side, perform following operation:
For random access guiding signature resources allocated in advance by subscriber equipment.Concrete, Node-B is such as by mode that is preset or broadcast, a part in random access guiding signature resources is used for the HS-DPCCH that downlink data triggers, and notify UE, the random access guiding signature resources these being used for the HS-DPCCH that downlink data triggers is designated as A, and according to the TTI type supported, A is divided into two part A1 and A2, the TTI type that wherein A1 is corresponding is the TTI type that 2msTTI, A2 are corresponding is 10msTTI; Another part in random access guiding signature resources is used for the HS-DPCCH that upstream data triggers, and notify UE, the random access guiding signature resources these being used for the HS-DPCCH that upstream data triggers is designated as B, and according to the TTI type supported, B is divided into two part B1 and B2, the TTI type that wherein B1 is corresponding is the TTI type that 2msTTI, B2 are corresponding is 10msTTI.Such as, for 16 random access guiding signature resources, A comprises 8 random access guiding signature resources, and wherein A1 and A2 respectively comprises 4 random access guiding signature resources, B comprises 8 random access guiding signature resources, and wherein B1 and B2 respectively comprises 4 random access guiding signature resources.
According to Stochastic accessing load, the quantity of the random access guiding signature that downlink high-speed shared control channel order HS-SCCHorder carries is configured.Concrete, Node-B regulates the random access guiding signature configuration status in HS-SCCHorder according to current Stochastic accessing load.Such as when Stochastic accessing load is larger, Node-B does not carry random access guiding signature in HS-SCCHorder, with by the more UE of competition process support; When Stochastic accessing load is less, Node-B carries one or two random access guiding signature in HS-SCCHorder, to ensure Stochastic accessing faster by non-competing process.Node-B sends HS-SCCHorder, this HS-SCCHorder to UE under CELL-FACH state both can not carry random access guiding signature, also can carry one or two random access guiding signature.
In UE side, perform following operation:
UE, after the HS-SCCHorder receiving Node-B transmission, resolves HS-SCCHorder, and carries out respective handling according to the configuration status of random access guiding signature in HS-SCCHorder.Be described in detail for HS-SCCHorder tri-kinds of situations respectively below.
Situation one: HS-SCCHorder does not carry random access guiding signature.UE, by resolving HS-SCCHorder, when detecting that HS-SCCHorder does not carry random access guiding signature, according to the TTI type that self supports, selects random access guiding to sign from the pre-assigned random access guiding signature resources in base station.More specifically, if current UE is the caller call terminal made a call, then from the random access guiding signature resources B of the HS-DPCCH of upstream data triggering, random access guiding is selected to sign, if the TTI type that UE self supports is 2msTTI, then from B1, Stochastic choice random access guiding has been signed Stochastic accessing, if the TTI type that UE self supports is 10msTTI, then from B2, Stochastic choice random access guiding has been signed Stochastic accessing; If current UE is the incoming call terminal of receipt of call, then from the random access guiding signature resources A of the HS-DPCCH of downlink data triggering, random access guiding is selected to sign, if the TTI type that UE self supports is 2msTTI, then from A1, Stochastic choice random access guiding has been signed Stochastic accessing, if the TTI type that UE self supports is 10msTTI, then from A2, Stochastic choice random access guiding has been signed Stochastic accessing.
Situation two: HS-SCCHorder carries a random access guiding signature.UE is by resolving HS-SCCHorder, when detecting that HS-SCCHorder carries a random access guiding signature, judge whether the TTI type that this random access guiding signature is corresponding is the TTI type that self supports, if TTI type corresponding to this random access guiding signature is the TTI type that UE self supports, then UE uses the random access guiding entrained by this HS-SCCHorder to have signed Stochastic accessing; If TTI type corresponding to this random access guiding signature is not the TTI type that UE self supports, then UE selects random access guiding to have signed Stochastic accessing from the pre-assigned random access guiding signature resources in base station.Such as, if the TTI type that the random access guiding signature that HS-SCCHorder carries is corresponding is 2msTTI, and the TTI type that this UE supports is 10msTTI, then UE selects random access guiding to have signed Stochastic accessing from the pre-assigned random access guiding signature resources in base station, and concrete Stochastic choice mode is such as identical with the selection mode in said circumstances one.If TTI type corresponding to random access guiding that HS-SCCHorder carries signature is 2msTTI, and the TTI type that this UE supports is 2msTTI, then UE uses the random access guiding entrained by this HS-SCCHorder to have signed Stochastic accessing.If the TTI type that the random access guiding signature that HS-SCCHorder carries is corresponding is 10msTTI, and the TTI type that this UE supports is 2msTTI, then UE selects random access guiding to have signed Stochastic accessing from the pre-assigned random access guiding signature resources in base station.If TTI type corresponding to random access guiding that HS-SCCHorder carries signature is 10msTTI, and the TTI type that this UE supports is 10msTTI, then UE uses the random access guiding entrained by this HS-SCCHorder to have signed Stochastic accessing.
Situation three: HS-SCCHorder carries two random access guiding signatures, and each random access guiding signature corresponds to different TTI types.Such as, HS-SCCHorder carries the first random access guiding signature and the second random access guiding signature, and the TTI type that wherein the first random access guiding signature is corresponding is 2msTTI, and the TTI type that the second random access guiding signature is corresponding is 10msTTI.If the TTI type that UE self supports is 2msTTI, then UE selects the first random access guiding signature to initiate Stochastic accessing; If the TTI type that UE self supports is 10msTTI, then UE selects the second random access guiding signature to initiate Stochastic accessing.
According to the accidental access method of above-described embodiment, subscriber equipment is resolved by the HS-SCCHorder sent base station, and perform respective handling according to resolving the different situations of carrying random access guiding signature obtained, obtain the random access guiding signature for completing Stochastic accessing, thus achieve reliable Stochastic accessing.In addition, because subscriber equipment can be resolved flexibly to HS-SCCHorder, therefore base station side can according to the situation of Stochastic accessing load to HS-SCCHorder in carry random access guiding signature regulate, to realize the conversion between the Stochastic accessing of competition and non-competing Random Access, thus support more subscriber equipment when Stochastic accessing load is larger, ensure Stochastic accessing faster when Stochastic accessing load is less, further increase network performance.
Further, in the accidental access method of above-described embodiment, resolve described HS-SCCHorder, with detect described HS-SCCHorder whether carry access lead signature specifically comprise:
Resolve 8 bits shared by described HS-SCCHorder;
If described 8 bits are 0, then know that described HS-SCCHorder does not carry random access guiding signature;
Otherwise, according to the sequence code corresponding with described 8 bits, inquire about the random access guiding signature entrained by described HS-SCCHorder.
Particularly, base station and subscriber equipment all store random access guiding signature Assembly Listing, and in this random access guiding signature Assembly Listing, each random access guiding signature and/or the combination of random access guiding signature all have unique sequence code.Such as, for 16 random access guiding signature resources, this 16 random access guiding signature resources are represented separately respectively with code S1 ~ S16, and utilize 120 code S17 ~ S136 to represent the combination of two of these 16 random access guiding signatures respectively, the random access guiding signature group that such as S17 is corresponding is combined into S1+S2, and the random access guiding signature group that S18 is corresponding is combined into S1+S3 etc.
If random access guiding signature is not carried in base station in HS-SCCHorder, then the bit of 8 shared by HS-SCCHorder is all set to 0, i.e. " 00000000 ".If a random access guiding signature is carried in base station in HS-SCCHorder, then according to entrained random access guiding signature, set is carried out to the bit of 8 shared by HS-SCCHorder.Such as, the bit set of 8 shared by HS-SCCHorder is then " 00000001 " by the random access guiding signature that code is S1 if carry; Shared by HS-SCCHorder a 8 bit set is then " 00010000 " by the random access guiding signature that code is S16 if carry.If two random access guiding signatures are carried in base station in HS-SCCHorder, then the sequence code corresponding to the combination of entrained random access guiding signature carries out set to the bit of 8 shared by HS-SCCHorder.Such as, the bit set of 8 shared by HS-SCCHorder is then " 00010001 " by the random access guiding signature combination that code is S17 if carry.
After subscriber equipment receives the HS-SCCHorder of base station transmission, by resolving the bit of 8 shared by HS-SCCHorder, then can know corresponding sequence code, thus corresponding random access guiding signature can be got by inquiry random access guiding signature Assembly Listing.
Embodiment three
On the basis of above-described embodiment two, Node-B to the HS-SCCHorder that UE sends, can not carry random access guiding signature under CELL-FACH state, or only carries a random access guiding signature.
UE, after the HS-SCCHorder receiving Node-B transmission, resolves HS-SCCHorder, and carries out respective handling according to the configuration status of random access guiding signature in HS-SCCHorder.Be described in detail for two kinds of situations of HS-SCCHorder respectively below.
Situation one: HS-SCCHorder does not carry random access guiding signature.UE, by resolving HS-SCCHorder, when detecting that HS-SCCHorder does not carry random access guiding signature, according to the TTI type that self supports, selects random access guiding to sign from the pre-assigned random access guiding signature resources in base station.More specifically, if current UE is the caller call terminal made a call, then from the random access guiding signature resources B of the HS-DPCCH of upstream data triggering, random access guiding is selected to sign, if the TTI type that UE self supports is 2msTTI, then from B1, Stochastic choice random access guiding has been signed Stochastic accessing, if the TTI type that UE self supports is 10msTTI, then from B2, Stochastic choice random access guiding has been signed Stochastic accessing; If current UE is the incoming call terminal of receipt of call, then from the random access guiding signature resources A of the HS-DPCCH of downlink data triggering, random access guiding is selected to sign, if the TTI type that UE self supports is 2msTTI, then from A1, Stochastic choice random access guiding has been signed Stochastic accessing, if the TTI type that UE self supports is 10msTTI, then from A2, Stochastic choice random access guiding has been signed Stochastic accessing.
Situation two: HS-SCCHorder carries a random access guiding signature.UE is by resolving HS-SCCHorder, when detecting that HS-SCCHorder carries a random access guiding signature, judge whether the TTI type that this random access guiding signature is corresponding is the TTI type that self supports, if TTI type corresponding to this random access guiding signature is the TTI type that UE self supports, then UE uses the random access guiding entrained by this HS-SCCHorder to have signed Stochastic accessing; If TTI type corresponding to this random access guiding signature is not the TTI type that UE self supports, then UE selects random access guiding to have signed Stochastic accessing from the pre-assigned random access guiding signature resources in base station.Such as, if the TTI type that the random access guiding signature that HS-SCCHorder carries is corresponding is 2msTTI, and the TTI type that this UE supports is 10msTTI, from the pre-assigned random access guiding signature resources in base station, then select random access guiding to have signed Stochastic accessing, concrete Stochastic choice mode is such as identical with the selection mode in said circumstances one.If TTI type corresponding to random access guiding that HS-SCCHorder carries signature is 2msTTI, and the TTI type that this UE supports is 2msTTI, then UE uses the random access guiding entrained by this HS-SCCHorder to have signed Stochastic accessing.If the TTI type that the random access guiding signature that HS-SCCHorder carries is corresponding is 10msTTI, and the TTI type that this UE supports is 2msTTI, then UE selects random access guiding to have signed Stochastic accessing from the pre-assigned random access guiding signature resources in base station.If TTI type corresponding to random access guiding that HS-SCCHorder carries signature is 10msTTI, and the TTI type that this UE supports is 10msTTI, then UE uses the random access guiding entrained by this HS-SCCHorder to have signed Stochastic accessing.
Embodiment four
On the basis of above-described embodiment two, Node-B to the HS-SCCHorder that UE sends, can not carry random access guiding signature under CELL-FACH state, or carries the random access guiding signature of at least two different TTI types.
UE, after the HS-SCCHorder receiving Node-B transmission, resolves HS-SCCHorder, and carries out respective handling according to the configuration status of random access guiding signature in HS-SCCHorder.Be described in detail for two kinds of situations of HS-SCCHorder respectively below.
Situation one: HS-SCCHorder does not carry random access guiding signature.UE, by resolving HS-SCCHorder, when detecting that HS-SCCHorder does not carry random access guiding signature, according to the TTI type that self supports, selects random access guiding to sign from the pre-assigned random access guiding signature resources in base station.More specifically, if current UE is the caller call terminal made a call, then from the random access guiding signature resources B of the HS-DPCCH of upstream data triggering, random access guiding is selected to sign, if the TTI type that UE self supports is 2msTTI, then from B1, Stochastic choice random access guiding has been signed Stochastic accessing, if the TTI type that UE self supports is 10msTTI, then from B2, Stochastic choice random access guiding has been signed Stochastic accessing; If current UE is the incoming call terminal of receipt of call, then from the random access guiding signature resources A of the HS-DPCCH of downlink data triggering, random access guiding is selected to sign, if the TTI type that UE self supports is 2msTTI, then from A1, Stochastic choice random access guiding has been signed Stochastic accessing, if the TTI type that UE self supports is 10msTTI, then from A2, Stochastic choice random access guiding has been signed Stochastic accessing.
Situation two: HS-SCCHorder carries two or more random access guiding signature, and each random access guiding signature corresponds to different TTI types.Such as, HS-SCCHorder carries the first random access guiding signature and the second random access guiding signature, and the TTI type that wherein the first random access guiding signature is corresponding is 2msTTI, and the TTI type that the second random access guiding signature is corresponding is 10msTTI.If the TTI type that UE self supports is 2msTTI, then UE selects the first random access guiding signature to initiate Stochastic accessing; If the TTI type that UE self supports is 10msTTI, then UE selects the second random access guiding signature to initiate Stochastic accessing.
Embodiment five
Fig. 3 is the structural representation of the subscriber equipment of the embodiment of the present invention five.As shown in Figure 3, this subscriber equipment comprises:
First receiver module 31, for receiving the downlink high-speed shared control channel order HS-SCCHorder that base station sends;
Parsing module 32, for resolving described HS-SCCHorder, to detect the quantity of the random access guiding signature that described HS-SCCHorder carries;
First Stochastic accessing module 33, if know that described HS-SCCHorder does not carry random access guiding signature for detecting, then according to the Transmission Time Interval TTI type that subscriber equipment is supported, from the pre-assigned random access guiding signature resources in base station, select random access guiding to sign, and carry out Stochastic accessing according to selected random access guiding signature.
The idiographic flow of the subscriber equipment execution Stochastic accessing of the present embodiment is identical with the accidental access method of previous embodiment, so place repeats no more.
According to the subscriber equipment of above-described embodiment, resolved by the HS-SCCHorder sent base station, and perform respective handling according to resolving the different situations of carrying random access guiding signature obtained, obtain the random access guiding signature for completing Stochastic accessing, thus achieve reliable Stochastic accessing.
Further, in the subscriber equipment of above-described embodiment, if for detecting, the first Stochastic accessing module 33 also knows that described HS-SCCHorder carries a random access guiding signature, then judge that whether the TTI type that entrained random access guiding signature is corresponding is consistent with the TTI type that subscriber equipment is supported, if consistent, then carry out Stochastic accessing according to entrained random access guiding signature; If inconsistent, then from the pre-assigned random access guiding signature resources in base station, select random access guiding to sign, and carry out Stochastic accessing according to selected random access guiding signature.
Further, in the subscriber equipment of above-described embodiment, if for detecting, the first Stochastic accessing module 33 also knows that described HS-SCCHorder carries at least two random access guiding signatures corresponding to different TTI type, then from described at least two random access guidings signature, select random access guiding corresponding to the TTI type of described subscriber equipment support to sign and carry out Stochastic accessing.
Further, in the subscriber equipment of above-described embodiment, the first receiver module 31 is also for obtaining described pre-assigned random access guiding signature resources.
Further, in the subscriber equipment of above-described embodiment, parsing module 32 is also for resolving 8 bits shared by described HS-SCCHorder; If described 8 bits are 0, then know that described HS-SCCHorder does not carry random access guiding signature; Otherwise, according to the sequence code corresponding with described 8 bits, inquire about the access lead signature entrained by described HS-SCCHorder.
Embodiment six
Fig. 4 is the schematic flow sheet of the accidental access method of the embodiment of the present invention six.As shown in Figure 4, this accidental access method comprises the following steps:
Step S401, receives the HS-SCCHorder that base station sends, and described HS-SCCHorder carries a random access guiding signature;
Step S402, whether the TTI type that the random access guiding signature entrained by judgement is corresponding is the TTI type that subscriber equipment is supported;
Step S403, if so, then carries out Stochastic accessing according to entrained random access guiding signature; If not, then from the pre-assigned random access guiding signature resources in base station, select random access guiding to sign, and carry out Stochastic accessing according to selected random access guiding signature.
The accidental access method of the present embodiment such as realizes in the system shown in figure 1, and is performed by subscriber equipment.
Particularly, Node-B is such as by mode that is preset or broadcast, a part in random access guiding signature resources is used for the HS-DPCCH that downlink data triggers, and notify UE, the random access guiding signature resources these being used for the HS-DPCCH that downlink data triggers is designated as A, and according to the TTI type supported, A is divided into two part A1 and A2, the TTI type that wherein A1 is corresponding is the TTI type that 2msTTI, A2 are corresponding is 10msTTI; Another part in random access guiding signature resources is used for the HS-DPCCH that upstream data triggers, and notify UE, the random access guiding signature resources these being used for the HS-DPCCH that upstream data triggers is designated as B, and be divided into two part B1 and B2 according to the TTI type B supported, the TTI type that wherein B1 is corresponding is the TTI type that 2msTTI, B2 are corresponding is 10msTTI.Such as, for 16 random access guiding signature resources, A comprises 8 random access guiding signature resources, and wherein A1 and A2 respectively comprises 4 random access guiding signature resources, B comprises 8 random access guiding signature resources, and wherein B1 and B2 respectively comprises 4 random access guiding signature resources.
Node-B sends HS-SCCHorder, this HS-SCCHorder to UE and carries a random access guiding signature under CELL-FACH state.UE, after the HS-SCCHorder receiving Node-B transmission, judges whether the TTI type that this random access guiding signature is corresponding is the TTI type that self supports.If TTI type corresponding to this random access guiding signature is the TTI type that UE self supports, then UE uses the random access guiding entrained by this HS-SCCHorder to have signed Stochastic accessing; If TTI type corresponding to this random access guiding signature is not the TTI type that UE self supports, then UE selects random access guiding to have signed Stochastic accessing from the pre-assigned random access guiding signature resources in base station.Such as, if the TTI type that the random access guiding signature that HS-SCCHorder carries is corresponding is 2msTTI, and the TTI type that this UE supports is 10msTTI, from the pre-assigned random access guiding signature resources in base station, then select random access guiding to have signed Stochastic accessing, concrete Stochastic choice mode is such as identical with the selection mode in said circumstances one.If TTI type corresponding to random access guiding that HS-SCCHorder carries signature is 2msTTI, and the TTI type that this UE supports is 2msTTI, then UE uses the random access guiding entrained by this HS-SCCHorder to have signed Stochastic accessing.If the TTI type that the random access guiding signature that HS-SCCHorder carries is corresponding is 10msTTI, and the TTI type that this UE supports is 2msTTI, then UE selects random access guiding to have signed Stochastic accessing from the pre-assigned random access guiding signature resources in base station.If TTI type corresponding to random access guiding that HS-SCCHorder carries signature is 10msTTI, and the TTI type that this UE supports is 10msTTI, then UE uses the random access guiding entrained by this HS-SCCHorder to have signed Stochastic accessing.
According to the accidental access method of above-described embodiment, because subscriber equipment is after receiving the HS-SCCHorder carrying random access guiding signature, the TTI type whether the TTI type corresponding to random access guiding signature is supported for self detects, and when judged result is no, can to sign Stochastic accessing by the random access guiding that conforms to of random selecting is supported with self from pre-assigned resource TTI type, thus make when the random access guiding signature entrained by HS-SCCHorder do not supported by subscriber equipment, still can realize reliable Stochastic accessing.
Embodiment seven
Fig. 5 is the structural representation of the subscriber equipment of the embodiment of the present invention seven.As shown in Figure 3, this subscriber equipment comprises:
Second receiver module 51, for receiving the HS-SCCHorder that base station sends, described HS-SCCHorder carries a random access guiding signature;
Second Stochastic accessing module 52, for judging whether the TTI type that entrained random access guiding signature is corresponding is the TTI type that subscriber equipment is supported; If so, then to have signed Stochastic accessing according to entrained random access guiding; If not, then from the pre-assigned random access guiding signature resources in described base station, select random access guiding to sign, and carry out Stochastic accessing according to selected random access guiding signature.
The idiographic flow of the subscriber equipment execution Stochastic accessing of the present embodiment is identical with the accidental access method of previous embodiment five, so place repeats no more.
According to the subscriber equipment of above-described embodiment, due to after receiving the HS-SCCHorder carrying random access guiding signature, the TTI type whether the TTI type corresponding to random access guiding signature is supported for self detects, and when judged result is no, can to sign Stochastic accessing by the random access guiding that conforms to of random selecting is supported with self from pre-assigned resource TTI type, thus make, when the random access guiding signature entrained by HS-SCCHorder do not supported by subscriber equipment, still can realize reliable Stochastic accessing.
Further, in the subscriber equipment of above-described embodiment, the second receiver module 52 is also for obtaining described pre-assigned random access guiding signature resources.
Embodiment eight
Fig. 6 is the structural representation of the base station of the embodiment of the present invention eight.As shown in Figure 6, this base station comprises:
Resource distribution module 61, for allocating random access guiding signature resources in advance for subscriber equipment;
Command set module 62, for according to Stochastic accessing load, is configured the quantity of the random access guiding signature that HS-SCCHorder carries;
Order sending module 63, for sending described HS-SCCHorder to described subscriber equipment, after receiving described HS-SCCHorder to make described subscriber equipment, know that if detect described HS-SCCHorder does not carry random access guiding signature, then according to the Transmission Time Interval TTI type that described subscriber equipment is supported, from described pre-assigned random access guiding signature resources, select random access guiding to sign, and carry out Stochastic accessing according to selected random access guiding signature.
The idiographic flow of the base station execution Stochastic accessing of the present embodiment is identical with the accidental access method of previous embodiment two to four, so place repeats no more.
Embodiment nine
The present embodiment provides a kind of communication system, comprises base station and subscriber equipment, wherein:
Described base station is used for sending HS-SCCHorder to described subscriber equipment;
The described HS-SCCHorder that described subscriber equipment sends for receiving described base station; Resolve described HS-SCCHorder, to detect the quantity that described HS-SCCHorder carries random access guiding signature; Know that if detect described HS-SCCHorder does not carry random access guiding signature, then according to the Transmission Time Interval TTI type that described subscriber equipment is supported, from the pre-assigned random access guiding signature resources in described base station, select random access guiding to sign, and carry out Stochastic accessing according to selected random access guiding signature.
The idiographic flow that the communication system of the present embodiment realizes Stochastic accessing is identical with the accidental access method of embodiment one to three, so place repeats no more.
According to the communication system of above-described embodiment, subscriber equipment is resolved by the HS-SCCHorder sent base station, and perform respective handling according to resolving the different situations of carrying random access guiding signature obtained, obtain the random access guiding signature for completing Stochastic accessing, thus achieve reliable Stochastic accessing.In addition, because subscriber equipment can be resolved flexibly to HS-SCCHorder, therefore base station side can according to the situation of Stochastic accessing load to HS-SCCHorder in carry random access guiding signature regulate, to realize the conversion between the Stochastic accessing of competition and non-competing Random Access, thus support more subscriber equipment when Stochastic accessing load is larger, ensure Stochastic accessing faster when Stochastic accessing load is less, further increase network performance.
Embodiment ten
The present embodiment provides another kind of communication system, comprises base station and subscriber equipment, wherein:
Described base station is used for sending HS-SCCHorder, described HS-SCCHorder to described subscriber equipment and carries a random access guiding signature;
The described HS-SCCHorder that described subscriber equipment sends for receiving described base station; Whether the TTI type that the random access guiding signature entrained by judgement is corresponding is the TTI type that described subscriber equipment is supported; If so, then to have signed Stochastic accessing according to entrained random access guiding; If not, then from the pre-assigned random access guiding signature resources in described base station, select random access guiding to sign, and carry out Stochastic accessing according to selected random access guiding signature.
The idiographic flow that the communication system of the present embodiment realizes Stochastic accessing is identical with the accidental access method of embodiment five, so place repeats no more.
According to the communication system of above-described embodiment, because subscriber equipment is after receiving the HS-SCCHorder carrying random access guiding signature, the TTI type whether the TTI type corresponding to random access guiding signature is supported for self detects, and when judged result is no, can to sign Stochastic accessing by the random access guiding that conforms to of random selecting is supported with self from pre-assigned resource TTI type, thus make when the random access guiding signature entrained by HS-SCCHorder do not supported by subscriber equipment, still can realize reliable Stochastic accessing.
One of ordinary skill in the art will appreciate that: all or part of step realizing said method embodiment can have been come by the hardware that program command is relevant, aforesaid program can be stored in a computer read/write memory medium, this program, when performing, performs the step comprising said method embodiment; And aforesaid storage medium comprises: ROM, RAM, magnetic disc or CD etc. various can be program code stored medium.
Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (18)
1. an accidental access method, is characterized in that, comprising:
Receive the downlink high-speed shared control channel order HS-SCCHorder that base station sends;
Resolve described HS-SCCHorder, to detect the quantity of the random access guiding signature that described HS-SCCHorder carries;
Know that if detect described HS-SCCHorder does not carry random access guiding signature, then according to the Transmission Time Interval TTI type that user equipment (UE) is supported, from the pre-assigned random access guiding signature resources in described base station, select random access guiding to sign, and to have signed Stochastic accessing according to selected random access guiding.
2. accidental access method according to claim 1, is characterized in that, resolves described HS-SCCHorder, also comprises to detect after described HS-SCCHorder carries the quantity of random access guiding signature:
Know that if detect described HS-SCCHorder carries a random access guiding signature, and described in TTI type corresponding to the random access guiding signature that carries be the TTI type that subscriber equipment is supported, then according to described in the random access guiding signature that carries carry out Stochastic accessing; Know that if detect described HS-SCCHorder carries a random access guiding signature, and described in TTI type corresponding to the random access guiding signature that carries be not the TTI type that described subscriber equipment is supported, then from the pre-assigned random access guiding signature resources in described base station, select random access guiding to sign, and carry out Stochastic accessing according to selected random access guiding signature.
3. accidental access method according to claim 1, is characterized in that, resolves described HS-SCCHorder, also comprises to detect after described HS-SCCHorder carries the quantity of random access guiding signature:
Know that if detect described HS-SCCHorder carries at least two random access guiding signatures corresponding to different TTI type, then from described at least two random access guidings signature, select random access guiding corresponding to the TTI type of described subscriber equipment support to sign and carry out Stochastic accessing.
4. according to the arbitrary described accidental access method of claim 1-3, it is characterized in that, also comprise before the HS-SCCHorder that described reception base station sends:
Obtain the pre-assigned random access guiding signature resources in described base station.
5. accidental access method according to claim 4, is characterized in that, resolves described HS-SCCHorder, with detect described HS-SCCHorder carry random access guiding signature quantity comprise:
Resolve 8 bits shared by described HS-SCCHorder;
If described 8 bits are 0, then know that described HS-SCCHorder does not carry random access guiding signature;
If described 8 bits are not 0 entirely, then according to the sequence code corresponding with described 8 bits, inquire about the random access guiding signature entrained by described HS-SCCHorder.
6. a subscriber equipment, is characterized in that, comprising:
First receiver module, for receiving the downlink high-speed shared control channel order HS-SCCHorder that base station sends;
Parsing module, for resolving described HS-SCCHorder, to detect the quantity of the random access guiding signature that described HS-SCCHorder carries;
First Stochastic accessing module, if know that described HS-SCCHorder does not carry random access guiding signature for detecting, then according to the Transmission Time Interval TTI type that subscriber equipment is supported, from the pre-assigned random access guiding signature resources in described base station, select random access guiding to sign, and carry out Stochastic accessing according to selected random access guiding signature.
7. subscriber equipment according to claim 6, it is characterized in that, if for detecting, described first Stochastic accessing module also knows that described HS-SCCHorder carries a random access guiding signature, and described in TTI type corresponding to the random access guiding signature that carries be the TTI type that subscriber equipment is supported, then according to described in the random access guiding signature that carries carry out Stochastic accessing; Know that if detect described HS-SCCHorder carries a random access guiding signature, and described in TTI type corresponding to the random access guiding signature that carries be not the TTI type that described subscriber equipment is supported, then from the pre-assigned random access guiding signature resources in described base station, select random access guiding to sign, and carry out Stochastic accessing according to selected random access guiding signature.
8. subscriber equipment according to claim 6, it is characterized in that, if for detecting, described first Stochastic accessing module also knows that described HS-SCCHorder carries at least two random access guiding signatures corresponding to different TTI type, then from described at least two random access guidings signature, select random access guiding corresponding to the TTI type of described subscriber equipment support to sign and carry out Stochastic accessing.
9., according to the arbitrary described subscriber equipment of claim 6-8, it is characterized in that, described first receiver module is also for obtaining the pre-assigned random access guiding signature resources in described base station.
10. subscriber equipment according to claim 9, is characterized in that, described parsing module is also for resolving 8 bits shared by described HS-SCCHorder; If described 8 bits are 0, then know that described HS-SCCHorder does not carry random access guiding signature; If described 8 bits are not 0 entirely, according to the sequence code corresponding with described 8 bits, inquire about the access lead signature entrained by described HS-SCCHorder.
11. 1 kinds of accidental access methods, is characterized in that, comprising:
For random access guiding signature resources allocated in advance by subscriber equipment;
According to Stochastic accessing load, the quantity of the random access guiding signature that downlink high-speed shared control channel order HS-SCCHorder carries is configured;
Described HS-SCCHorder is sent to described subscriber equipment, after receiving described HS-SCCHorder to make described subscriber equipment, know that if detect described HS-SCCHorder does not carry random access guiding signature, then according to the Transmission Time Interval TTI type that described subscriber equipment is supported, from described pre-assigned random access guiding signature resources, select random access guiding to sign, and carry out Stochastic accessing according to selected random access guiding signature.
12. 1 kinds of base stations, is characterized in that, comprising:
Resource distribution module, for allocating random access guiding signature resources in advance for subscriber equipment;
Command set module, for according to Stochastic accessing load, is configured the quantity of the random access guiding signature that downlink high-speed shared control channel order HS-SCCHorder carries;
Order sending module, for sending described HS-SCCHorder to described subscriber equipment, after receiving described HS-SCCHorder to make described subscriber equipment, know that if detect described HS-SCCHorder does not carry random access guiding signature, then according to the Transmission Time Interval TTI type that described subscriber equipment is supported, from described pre-assigned random access guiding signature resources, select random access guiding to sign, and carry out Stochastic accessing according to selected random access guiding signature.
13. 1 kinds of accidental access methods, is characterized in that, comprising:
Receive the downlink high-speed shared control channel order HS-SCCHorder that base station sends, described HS-SCCHorder carries a random access guiding signature;
If the Transmission Time Interval TTI type of described random access guiding signature correspondence is the TTI type that subscriber equipment is supported, then the random access guiding carried described in basis signature carries out Stochastic accessing; If the TTI type that described random access guiding signature is corresponding is not the TTI type that subscriber equipment is supported, then from the pre-assigned random access guiding signature resources in described base station, select random access guiding to sign, and carry out Stochastic accessing according to selected random access guiding signature.
14. accidental access methods according to claim 13, is characterized in that, also comprise before the HS-SCCHorder that described reception base station sends:
Obtain the pre-assigned random access guiding signature resources in described base station.
15. 1 kinds of subscriber equipmenies, is characterized in that, comprising:
Second receiver module, for receiving the downlink high-speed shared control channel order HS-SCCHorder that base station sends, described HS-SCCHorder carries a random access guiding signature;
Second Stochastic accessing module, if be the TTI type that subscriber equipment is supported for the Transmission Time Interval TTI type that described random access guiding signature is corresponding, carries out Stochastic accessing according to entrained random access guiding signature; If the Transmission Time Interval TTI type that described random access guiding signature is corresponding is not the TTI type that subscriber equipment is supported, then from the pre-assigned random access guiding signature resources in described base station, select random access guiding to sign, and carry out Stochastic accessing according to selected random access guiding signature.
16. subscriber equipmenies according to claim 15, is characterized in that, described second receiver module is also for obtaining the pre-assigned random access guiding signature resources in described base station.
17. 1 kinds of communication systems, is characterized in that, comprise base station and subscriber equipment, wherein:
Described base station is used for sending downlink high-speed shared control channel order HS-SCCHorder to described subscriber equipment;
The described HS-SCCHorder that described subscriber equipment sends for receiving described base station; Resolve described HS-SCCHorder, to detect the quantity of the random access guiding signature that described HS-SCCHorder carries; Know that if detect described HS-SCCHorder does not carry random access guiding signature, then according to the Transmission Time Interval TTI type that described subscriber equipment is supported, from the pre-assigned random access guiding signature resources in described base station, select random access guiding to sign, and carry out Stochastic accessing according to selected random access guiding signature.
18. 1 kinds of communication systems, is characterized in that, comprise base station and subscriber equipment, wherein:
Described base station is used for sending downlink high-speed shared control channel order HS-SCCHorder to described subscriber equipment, and described HS-SCCHorder carries a random access guiding signature;
The described HS-SCCHorder that described subscriber equipment sends for receiving described base station; If the Transmission Time Interval TTI type that described random access guiding signature is corresponding is the TTI type that described subscriber equipment is supported, then carry out Stochastic accessing according to described random access guiding signature; If the Transmission Time Interval TTI type that described random access guiding signature is corresponding is not the TTI type that described subscriber equipment is supported, then from the pre-assigned random access guiding signature resources in described base station, select random access guiding to sign, and carry out Stochastic accessing according to selected random access guiding signature.
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| CN101572949A (en) * | 2008-04-28 | 2009-11-04 | 华为技术有限公司 | Method, communication system and user device for enhancing random access |
| CN101978756A (en) * | 2008-03-19 | 2011-02-16 | 日本电气株式会社 | Communication system, mobile station, base station, response decision method, resource configuration decision method, and program |
| CN101990310A (en) * | 2009-07-30 | 2011-03-23 | 华为技术有限公司 | Random access method and device thereof |
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| CN101572949A (en) * | 2008-04-28 | 2009-11-04 | 华为技术有限公司 | Method, communication system and user device for enhancing random access |
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