CN100496145C - Reallocation method of the physical share channel - Google Patents
Reallocation method of the physical share channel Download PDFInfo
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Abstract
The invention relates to a mobile communication field, discloses a physical shared channel reconfiguration method capable of ensuring accuracy of wireless downlink control channel configuration. In the invention, a base staion node uses scrambling code configuration E-RGCH, E-HICH and E-AGCH corresponding to a downlink reference channel of a physical shared channel, the scrambling code is configured in the base staion node before establishing a cell, and a scrambling code used by E-RGCH, EHICH and E-AGCH is forbidded to be directly configured by a CRNC via an NBAP message. During the reconfiguration process of the physical shared channel of the NBAP, the invention allows changing a reference channel of the physical shared channel of the cell.
Description
Technical field
The present invention relates to moving communicating field, particularly the configuring technical of wireless channel.
Background technology
Third generation partner program (3rd Generation Partnership Project, be called for short " 3GPP ") initiate by normal structures such as Europe, Japan, Korea S and the U.S., being intended to research, formulating and promoting with global system for mobile communications (Global System for Mobile communication is called for short " GSM ") is the standard of basis to the 3G (Third Generation) Moblie network development.
Two kinds of wireless enhanced technology that 3GPP is introduced below: high speed downlink packet inserts (High SpeedDownlink Packet Access, be called for short " HSDPA "), and the dedicated channel that strengthens (EnhancedDedicated Channel is called for short " E-DCH ") is briefly described.
HSDPA is a kind of descending wireless enhanced technology that 3GPP introduces in Release 5.This technology on satisfying/the asymmetric demand of downstream data traffic and proposing, it can not change Wideband Code Division Multiple Access (WCDMA) (the Wideband Code Division Multiple Access that has built, abbreviation " WCDMA ") under the situation of network configuration, downstream data traffic speed is brought up to 10Mbps.This technology is a kind of important technology that the WCDMA networking later stage improves downlink capacity and data service rate.Because HSDPA has adopted link adaptation techniques based on Adaptive Modulation and Coding, based on mixed self-adapting repeat requests (the Hybrid Automatic Repeat ReqUEst of physical layer retransmission and soft merging, abbreviation " HARQ "), key technology such as quick multi-user's packet scheduling, the short frame of 2ms, have remarkable advantages such as spectrum efficiency height, downlink transfer speed is big, propagation delay time is little, thereby can provide effective twelve Earthly Branches to hold Packet data service.
The high speed uplink packet that E-DCH is called again inserts (HighSpeed Uplink Packet Access is called for short " HSUPA "), be 3GPP after in Release5, introducing HSDPA, a kind of wireless enhanced technology of in Release6, introducing.
E-DCH supports 10ms TTI (Transmission Timing Interval, be translated into " Transmission Time Interval ") and two kinds of patterns of 2ms TTI, owing to adopted based on base-station node (Node Base Station, key technologies such as up fast packet scheduling abbreviation " Node B ") and quick HARQ, E-DCH has remarkable advantages such as spectrum efficiency height, uplink speed is fast, propagation delay time is little, thereby more effectively supports grouping data services such as real-time game business, file are uploaded, broadband multimedia services to use.
The uplink physical channel that E-DCH is relevant comprises E-DCH Dedicated Physical Data Channel (the E-DCH Dedicated Physical Data Channel that is used for carrying user data, be called for short " E-DPDCH ") and be used to carry the E-DCH Dedicated Physical Control Channel (E-DCH Dedicated Physical Control Channel is called for short " E-DPCCH ") of the required control information of demodulate reception E-DPDCH.
The down physical channel that E-DCH is relevant is control channel, E-DCH absolute grant channel (the E-DCHAbsolute Grant Channel that comprises the absolute grant order of the E-DCH Serving cell that is used to carry the control uplink transmission resource, be called for short " E-AGCH "), be used to carry E-DCH relative authorization channel (the E-DCH Relative Grant Channel of the relative authorization command of controlling uplink transmission resource, be called for short " E-RGCH ") with the E-DCH hybrid automatic repeat request indication channel of confirmation (ACK/NACK) (E-DCH Hybrid ARQ Indicator Channel is called for short " E-HICH ") of the affirmation that is used to carry Node B/not.Wherein, relative authorization comprises the RG order of E-DCH service Radio Link collection (Radio Link Set is called for short " RLS ") and the RG order of the non-service Radio Link of E-DCH (Radio Link is called for short " RL ").
In the E-DCH downlink physical control channel, E-AGCH is spreading factor (the Spreading Factor of fixed rate, be called for short " SF ") be 256 down public common, as shown in Figure 1, E-AGCH channel one frame comprises 15 time slots, per 3 time slots constitute a subframe, to 2ms TTI pattern, at a subscriber equipment (User Equipment, abbreviation " UE ") E-DCH absolute grant order is transmitted by a subframe, to 10ms TTI pattern, then transmit by a frame at the E-DCH absolute grant order of a UE.
E-RGCH/E-HICH is a DPCH, and speed is fixed (SF=128) and had identical frame structure, as shown in Figure 2.Because the similitude of E-RGCH/E-HICH on frame structure is therefore for the same down channel sign indicating number of these two channel sharings of a UE.40 bits of each slot transmission of E-RGCH/E-HICH are replied the indication decision by the relative authorization command/HARQ of the specific signature sequence of UE (signature sequences) and this UE correspondence, and the signature sequence of different UEs is mutually orthogonal.So although E-RGCH/E-HICH is a DPCH, but in fact the E-RGCH/E-HICH channel of same channel code can distribute to a plurality of UE, and different UEs is then replied indication information according to relative authorization command/HARQ that different mutually orthogonal signature sequences is distinguished separately.
Above mention, E-DCH supports 2ms TTI pattern and 10ms TTI pattern.A HARQ on the E-HICH under 2ms TTI pattern and the 10ms TTI pattern replys indication and adopts 3 or 12 continuous time slot transmission respectively.A relative authorization command on the E-RGCH adopts 3,12 or 15 continuous time slot transmission, wherein the RG to E-DCH service RLS orders, relative authorization command under 2ms TTI pattern and the 10ms TTI pattern adopts 3 and 12 continuous time slot transmission respectively, to the RG order of the non-service of E-DCH RL, 2ms TTI pattern and 10ms TTI pattern all adopt 15 continuous time slot transmission.
According to the protocol specification TS25.213 of 3GPP, sub-district can with the down link scrambler comprise a basic scrambler and 15 second scramblers.Protocol specification TS25.211 according to 3GPP, basic Common Pilot Channel (Primary Common Pilot Channel, abbreviation " P-CPICH ") always adopts the basic scrambler of this sub-district, and in whole sub-district, launch, second Common Pilot Channel (Secondary CommonPilot Channel, abbreviation " S-CPICH ") then both can adopt the basic scrambler of this sub-district, also can adopt second scrambler of this sub-district, S-CPICH both can launch in whole sub-district, also can be in the emission of the subregion of sub-district.
Next, on basis above, further introduce description to beam forming technique.
Beam forming technique forms the narrow beam that need not point to, thereby reaches the purpose of utilizing space division multiplexing to improve power system capacity by the weight vector that transmits and receives signal of the aerial array regulating a plurality of antennas and form in the spatial domain.
Under normal conditions, the reference channel of down link is P-CPICH, and UE utilizes this reference channel to estimate channel, thereby finishes the coherent demodulation to down link signal, and for this reason, P-CPICH is that launch in the zone that covers in whole sub-district.When adopting beam forming technique, different beams is the part zone of coverage cell only, for the required reference signal of channel estimating of this wave beam correspondence is provided for the UE that receives the particular beam signal, need the specific downlink of launching beam, therefore the down link reference channel that adopts in beam forming technique is S-CPICH.
For the usage of supporting beam shaping reference channel S-CPICH as shown in Figure 3.At first, start back control radio network controller (Controlling Radio Network Controller at Node B, be called for short " CRNC ") pass through " CELL SETUP REQUEST " (request is set up in the sub-district) NBAP (Node-B Application Part according to ability information such as Node B resource situations, being translated into " base-station node applying portion ") message sets up the sub-district of this Node B, if Node B supports beam shaping, CRNC will set up corresponding S-CPICH channel by IE (Information Element is translated into " information element ") " Secondary CPICHInformation (being translated into " the 2nd CPICH information ") " the indication Node B of message.As shown in table 1, IE " Secondary CPICH Information " has comprised and has set up needed all information of S-CPICH channel, comprises channel id (channel number), scrambler, channel code, transmitting power and whether carries out diversity emission etc.
Table 1: the IE " Secondary CPICH Information " that message " CELL SETUPREQUEST " is comprised
| IE/Group Name (information element/group name claims) | Presence (attribute occurring) | Range (scope) | IE Type and Reference (information element and reference) | Semantics Description (semantic description) | Criticality (severity) | Assig ned Criticality (severity of appointment) |
| Secondary CPICH Information (the 2nd CPICH information) | 0..<maxS CP/CHCe// > | EACH (separately) | Reject (refusal) | |||
| Common Physical Channel ID (public physic channel ID) | M (essential) | 9.2.1.13 | - | |||
| DL Scrambling Code (down link scrambler) | M (essential) | 9.2.2.13 | - | |||
| FDD DL Channelisation Code Number (FDD downlink channel code numbering) | M (essential) | 9.2.2.14 | - | |||
| Secondary CPICH Power (the 2nd CPICH power) | M (essential) | DLPower 9.2.1.21 (downlink power 9.2.1.21) | - | |||
| Transmit Diversity Indicator (transmit diversity indication) | M (essential) | 92.2.53 | - |
Simultaneously, also comprise IE " Cell PortionInformation (being translated into " sub-district lobe information ") in " CELL SETUP REQUEST " message.As shown in table 2, the effect of this IE is the ID of sub-district lobe and corresponding S-CPICH are associated, thereby be the corresponding reference channel S-CPICH of each sub-district lobe assignment, wherein, the sub-district lobe is meant the specific geographical area in the sub-district of implementing to measure for beam shaping.
Table 2: the IE " Cell Portion Information " that message " CELLSETUP REQUEST " is comprised
| IE/Group Name (information element/group name claims) | Presence (attribute occurring) | Range (scope) | IE Type and Reference (information element and reference) | Semantics Description (semantic description) | Criticality (severity) | Assigned Criticality (severity of appointment) |
| Cell Portion Information (sub-district lobe information) | 0..<maxno ofCe//Porti ons> | EACH (separately) | Reject (refusal) | |||
| Cell Portion ID (sub-district lobe ID) | M (essential) | 9.2.2.1Ca | - | |||
| Associated Secondary CPICH (related S-CPICH channel) | M (essential) | Common Physical Channel ID9.2.1.13 | - |
| (public physic channel ID 9.2.1.13) | ||||||
| Maximum Transmission Power for Cell Portion (sub-district lobe maximum transmission power) | M (essential) | Maximum Transmissi on Power 9.2.1.40 (maximum transmission power 9.2.1.40) | - |
Again referring to Fig. 3, Node B is responsible for carrying out the measurement relevant with beam shaping, comprise reception total wideband power (Received total wide band power) as sub-district lobe (cellPortion), the emission carrier power of sub-district lobe public-measurements such as (Transmitted carrier power), and at signal-to-jamming ratio (the Signal to Interference Ratio of specific radio link, abbreviation " SIR ") measurement waits special measurement, and the measurement report that passes through NBAP is given CRNC with measurement report, in addition, initial access of UE is that Node B also will measure UE at the SIR of each sub-district lobe and sub-district lobe that SIR is the highest (promptly, best sub-district lobe) id information is by Iub FP (Frame Protocol, be translated into " Frame Protocol ") Random Access Channel (Random Access CHannel, being called for short " RACH ") Frame is to the CRNC report therefore, CRNC utilizes the measurement of Node B can obtain the information of the best sub-district lobe of UE, thereby is this best cell lobe corresponding reference channel of the corresponding Radio Link assignment of this UE S-CPICH.
On the other hand, the reprovision process of Physical Shared Channel is provided in the existing NBAP technology, as shown in Figure 4, make CRNC to carry out reprovision to some parameter of the shared channel HSDPA/E-DCH of a sub-district of Node B by " PHYSICAL SHARED CHANNELRECONFIGURATION REQUEST (request of Physical Shared Channel reprovision) " message.As shown in table 3, this message is utilized IE " E-AGCH And E-RGCH/E-HICH FDD Scrambling Code " (E-AGCH and E-RGCH/E-HICH FDD scrambler), can realize the configuration to E-RGCH, E-HICH in whole sub-district and each the sub-district lobe and E-AGCH channel scrambler.
Table 3: message " PHYSICAL SHARED CHANNEL RECONFIGURATION REQUEST "
| IE/Group Name (information element/group name claims) | Presence (attribute occurring) | Range (scope) | IE Type and Reference (information element and reference) | Semantics Descri ption (semantic description) | Criticality (severity) | Assigned Criticality (severity of appointment) |
| Message Discriminator (message identification) | M (essential) | 9.2.1.45 | - | |||
| Message Type (type of message) | M (essential) | 9.2.1.46 | YES (being) | Reject (refusal) | ||
| Transaction ID (affairs ID) | M (essential) | 9.2.1.62 | - | |||
| C-ID | M (essential) | 9.2.1.9 | YES (being) | Reject (refusal) | ||
| Configuration Generation ID (configuration offspring ID) | M (essential) | 9.2.1.16 | YES (being) | Reject (refusal) | ||
| SFN | Zero (optional) | 9.2.1.53A | YES (being) | Reject (refusal) | ||
| HS-PDSCH, HS-SCCH, E-AGCH, E-RGCH and E-HICH Total Power (HS-PDSCH, HS-SCCH, E-AGCH, E-RGCH and E-HICH gross power) | Zero (optional) | Maximum Transmissi on Power 9.2.1.40 (maximum transmission power 9.2.1.40) | Maximum transmission power to be allowed for HS-PDSCH, HS-SCCH, E-AGCH, the E-RGCH and E-HICH codes (HS-PDSCH of permission, HS-SCCH, E-AGCH, E-RGCH and E-HICH maximum transmission power) | YES (being) | Reject (refusal) |
| HS-PDSCH And HS-SCCH Scrambling Code (HS-PDSCH and HS-SCCH scrambler) | Zero (optional) | DL Scramblin g Code 92.2.13 (down link scrambler 9.2.2.13) | The Scrambling code on which HS-PDSCH and HS-SCCH is transmitted. 0=Primary scrambling code of the |
YES (being) | Reject (refusal) | |
| HS-PDSCH FDD Code Information (HS-PDSCH FDD sign indicating number information) | Zero (optional) | 9.2.2.18F | YES (being) | Reject (refusal) | ||
| HS-SCCH FDD Code Information (HS-SCCH FDD sign indicating number information) | Zero (optional) | 9.2.2.18G | YES (being) | Reject (refusal) | ||
| E-AGCH And E-RGCH/E-H ICH FDD Scrambling Code (E-AGCH and E-RGCH/E-HICH FDD scrambler) | Zero (optional) | DL Scramblin g Code 9.2.2.13 (down link scrambler 9.2.2.13) | Scrambling code on which E-AGCH, E-RGCH and E-HICH are transmitted. 0=Primary scrambling code of the cell1...15=Secondary scrambling code (E-AGCH, the scrambler of E-RGCH and E-HICH, the basic scrambler of 0 expression sub-district, 1～15 expression, second scrambler) | YES (being) | Reject (refusal) | |
| E-AGCH Code FDD Information (E-AGCH sign indicating number FDD information) | Zero (optional) | 9.2.2.13Ib | YES (being) | Reject (refusal) |
| E-RGCH/E-HICH Code FDD Information (E-RGCH/E-HICH sign indicating number FDD information) | Zero (optional) | 9.2.2.13Ia | YES (being) | Reject (refusal) | ||
| HSDPA and E-DCH Cell Portion Information (HSDPA and E-DCH sub-district lobe information) | 0..<maxNo ofCe//Porti ons> | GLOBAL (overall situation) | Reject (refusal) | |||
| CellPortion ID (sub-district lobe ID) | M (essential) | 9.2.2.1Ca | - | |||
| HS-PDSCH And HS-SCCH Scrambling Code (HS-PDSCH and HS-SCCH scrambler) | Zero (optional) | DL Scramblin g Code 9.2.2.13 (down link scrambler 9.2.2.13) | Scrambling code on which HS-PDSCH and HS-SCCH is transmitted over cell portion. (HS-PDSCH and the HS-SCCH scrambler in the lobe of sub-district) | - | ||
| HS-PDSCH FDD Code Information (HS-PDSCH FDD sign indicating number information) | Zero (optional) | 9.2.2.18F | - | |||
| HS-SCCH FDD Code Information (HS-SCCH FDD sign indicating number information) | Zero (optional) | 9.2.2.18G | - | |||
| HS-PDSCH, HS-SCCH, E-AGCH, E-RGCH and E-HICH Total Power (HS-PDSCH, HS-SCCH, E-AGCH, E-RGCH and E-HICH gross power) | Zero (optional) | Maximum Transmissi on Power 9.2.1.40 (maximum transmission power 9.2.1.40) | Maximum transmission power to be allowed for HS-PDSCH, HS-SCCH and E-AGCH, the E-RGCH and E-HICH codes over cell portion (HS-PDSCH in the sub-district lobe of permission, HS-SCCH, E-AGCH, the maximum transmission power of E-RGCH and E-HICH) | - |
| E-AGCH And E-RGCH/E-H ICH FDD Scrambling Code (E-AGCH and E-RGCH/E-HICH FDD scrambler) | Zero (optional) | DL Scramblin g Code 9.2.2.13 (down link scrambler 9.2.2.13) | Scrambling code on which E-AGCH, E-RGCH and E-HICH are transmitted over cell portion. (E-AGCH and the scrambler of E-RGCH/E-H ICH FDD in the lobe of sub-district) | - | ||
| E-AGCH Code FDD Information (E-AGCH sign indicating number FDD information) | Zero (optional) | 9.2.2.13Ib | - | |||
| E-RGCH/E-HICH Code FDD Information (E-RGCH/E-H ICH sign indicating number FDD information) | Zero (optional) | 9.2.2.13Ia | - | |||
| Maximum Target Received Total Wide Band Power (maximum target reception total wideband power) | Zero (optional) | 9.2.2.21a | YES (being) | Reject (refusal) | ||
| Reference Received Total Wide Band Power (with reference to receiving total wideband power) | Zero (optional) | 9.2.2.39B | YES (being) | Ignore (ignoring) | ||
| Target Non-serving E-DCH to Total E-DCH Power ratio (the non-service of target E-DCH and total E-DCH power ratio) | Zero (optional) | 9.2.2.21b | YES (being) | Reject (refusal) |
| Range Bound (scope circle) | Explanation (explanation) |
| MaxNoofCellPortions | Maximum number of Cell Portions in a cell (maximum a few days of the sub-district lobe in sub-district) |
In actual applications, there is following problem in such scheme: according to the protocol specification TS25.213 of 3GPP, the scrambler of the E-RGCH of each sub-district, E-HICH and E-AGCH channel is identical with the scrambler of corresponding reference channel P-CPICH or S-CPICH.But in the prior art, CRNC but directly disposes the scrambler of E-RGCH, E-HICH and E-AGCH channel by NBAP message " PHYSICAL SHARED CHANNEL RECONFIGURATIONREQUEST ".This obviously is irrational.
CRNC can not only change the scrambler of E-RGCH, E-HICH and E-AGCH channel and not change the configuration of reference channel, particularly for E-RGCH, the E-HICH of sub-district lobe and the scrambler of E-AGCH, the scrambler of E-RGCH, E-HICH and E-AGCH channel is the scrambler of the S-CPICH of this sub-district lobe, and in fact CRNC can't change the scrambler of E-RGCH, E-HICH and E-AGCH channel.Therefore, in the prior art, CRNC is wrong by the way that NBAP message " PHYSICAL SHAREDCHANNEL RECONFIGURATION REQUEST " directly disposes E-RGCH, E-HICH and E-AGCH channel scrambler.
If allow CRNC directly to dispose E-RGCH, E-HICH and E-AGCH channel scrambler by NBAP message " PHYSICAL SHARED CHANNELRECONFIGURATION REQUEST ", and directly the scrambler of configuration is different with the scrambler of reference channel for a certain reason, and then NodeB is with at a loss as to what to do.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of Physical Shared Channel reallocating method, makes the correctness of Radio Link down control channel configuration be protected.
For achieving the above object, the invention provides a kind of Physical Shared Channel reallocating method, comprise following steps:
Radio network controller is pre-configured at least one down link reference channel and corresponding scrambler thereof in base-station node;
Described base-station node uses the dedicated channel E-DCH downlink physical control channel of the pairing scrambler configuration of the down link reference channel of Physical Shared Channel enhancing, avoids directly being specified to this base-station node by described radio network controller the scrambler of this E-DCH downlink physical control channel.
Wherein, if described base-station node is not supported beam forming technique, then with the basic Common Pilot Channel of sub-district, described Physical Shared Channel place as described reference channel;
If described base-station node is supported beam forming technique, then with second Common Pilot Channel of sub-district, described Physical Shared Channel place lobe as described reference channel.
In this external described method, described E-DCH downlink physical control channel comprises:
E-DCH relative authorization channel, E-DCH absolute grant channel and E-DCH hybrid automatic repeat request indication channel.
In this external described method, avoid directly specifying the scrambler of E-DCH downlink physical control channel in the following manner to described base-station node by described radio network controller:
In " PHYSICAL SHARED CHANNEL RECONFIGURATION REQUEST " message, avoid carrying information element " E-AGCH And E-RGCH/E-HICH FDD ScramblingCode ".
In this external described method, also comprise following steps:
Described radio network controller notifies described base-station node to change the reference channel of Physical Shared Channel in sub-district or the sub-district lobe;
Described base-station node uses the pairing scrambler of new reference channel to dispose described E-DCH downlink physical control channel after changing the reference channel of Physical Shared Channel in sub-district or the sub-district lobe.
In this external described method, described radio network controller notifies described base-station node to change the reference channel of sub-district or sub-district lobe in the following manner:
In " PHYSICAL SHARED CHANNEL RECONFIGURATION REQUEST " message, carry the information element of the new reference channel of expression.
In this external described method, comprise optional information element " Primary CPICH Usage For Channel Estimation " and optional information element " Secondary CPICH Information " in the information element of the reference channel that described expression is new.
In this external described method, when the value of described information element " Primary CPICH may be used " is " Primary CPICH may be used ", with basic Common Pilot Channel as new reference channel;
When the value of described information element " Primary CPICH may be used " is " Primary CPICHshall not be used ", expression is forbidden basic Common Pilot Channel as described reference channel, if there is information element " Secondary CPICH Information ", then with indicated second Common Pilot Channel of the value of information element " SecondaryCPICH Information " as described reference channel.
In this external described method, when information element described in the information element of the new reference channel of described expression " Primary CPICH may be used " and information element " S econdary CPICH Information " when all not occurring, then with basic Common Pilot Channel as described reference channel.
In this external described method, described Physical Shared Channel reallocating method be applied in the base-station node applying portion that the control radio network controller inserts the high speed downlink packet of base-station node and the reprovision of E-DCH related physical channel in.
By relatively finding, the main distinction of technical scheme of the present invention and prior art is, base-station node uses pairing scrambler configuration E-RGCH, E-HICH of the down link reference channel of Physical Shared Channel and E-AGCH, be configured in the base-station node when this scrambler is set up in the sub-district, rather than directly disposed E-RGCH, E-HICH and the used scrambler of E-AGCH by NBAP message by CRNC.Though be that the scrambler that E-RGCH, E-HICH and E-AGCH joined should be consistent by NBAP message among the scrambler preserved of base-station node this locality and the CRNC in theory, but communication system is a very complicated system, might be in implementation procedure or the Bug in handling and cause the scrambler of local scrambler and CRNC appointment inconsistent because of the different processing mode of error of transmission, different vendor, can cause system's cisco unity malfunction this moment.Behind the unified use of the solution of the present invention base-station node local scrambler corresponding with reference channel, can settle the matter once and for all, guarantee that E-RGCH, E-HICH and E-AGCH obtain proper configuration.
Because do not sent the used scrambler of E-RGCH, E-HICH and E-AGCH in NBAP message, the amount of information that relevant NBAP message need be carried can corresponding minimizing, thereby has reduced the traffic, has improved communication efficiency.
In the reprovision process of the Physical Shared Channel of NBAP, the present invention allows to change the reference channel of a sub-district Physical Shared Channel (comprising HSDPA/E-DCH).Thereby make the setting of shared channel more flexible.
When specific implementation, in NBAP " PHYSICAL SHARED CHANNELRECONFIGURATION REQUEST " message, no longer comprise IE " E-AGCH AndE-RGCH/E-HICH FDD Scrambling Code ", increase the IE of the reference channel of expression sub-district Physical Shared Channel (comprising HSDPA/E-DCH) newly, should comprise optional IE " Primary CPICHUsage For Channel Estimation " and optional IE " Secondary CPICH Information " by newly-increased IE, the usage of these two optional IE is same as the prior art.Because be to rely on existing protocol to improve, so have higher exploitativeness.
Description of drawings
Fig. 1 is the frame structure of E-AGCH in the prior art;
Fig. 2 is the frame structure of E-RGCH/E-HICH in the prior art;
Fig. 3 is the using method schematic diagram of reference channel S-CPICH in the prior art;
Fig. 4 is the reprovision process schematic diagram of Physical Shared Channel in the prior art;
Fig. 5 is the reprovision process schematic diagram according to the Physical Shared Channel of first embodiment of the invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.
The reprovision process of the Physical Shared Channel of first execution mode of the present invention as shown in Figure 5.In step 510, CRNC sends PHYSICAL SHARED CHANNELRECONFIGURATION REQUEST (request of Physical Shared Channel reprovision) message to Node B, the main distinction of PHYSICAL SHARED CHANNEL RECONFIGURATIONREQUEST is not comprise IE " E-AGCH And E-RGCH/E-HICH FDDScrambling Code " in this message and the prior art, and this IE is that E-DCH downlink physical control channel (comprising E-AGCH, E-RGCH and E-HICH) has been specified scrambler.Because do not transmitted IE " E-AGCH AndE-RGCH/E-HICH FDD Scrambling Code " in NBAP message, the corresponding minimizing of amount of information meeting that relevant NBAP message need be carried, thus reduced the traffic, improved communication efficiency.
Structure based on the NBAP message " PHYSICAL SHAREDCHANNEL RECONFIGURATION REQUEST " of first embodiment of the invention (representing the part of deleting) as shown in table 4 for knowing in the expression table with Dbl Strikethrough.
Table 4
After this enter step 520, Node B is with pairing scrambler configuration E-AGCH, E-RGCH of the down link reference channel of Physical Shared Channel (comprising HSDPA and E-DCH) and E-HICH channel.Specifically, if Node B does not support beam forming technique, then the down link reference channel of Physical Shared Channel is the P-CPICH channel of sub-district, Physical Shared Channel place; If Node B supports beam forming technique, then the down link reference channel of Physical Shared Channel is the S-CPICH channel of sub-district, Physical Shared Channel place lobe.Down link reference channel of Physical Shared Channel (comprising P-CPICH and S-CPICH channel) and pairing scrambler thereof are when Node B sets up the sub-district, are configured among the Node B by CRNC.
E-AGCH, the source of the scrambler of E-RGCH and E-HICH channel is an emphasis of the present invention, because in PHYSICAL SHARED CHANNEL RECONFIGURATION REQUEST message, do not specified the IE " E-AGCH And E-RGCH/E-HICH FDD ScramblingCode " of scrambler, so can only use the pairing scrambler of down link reference channel of the Physical Shared Channel that Node B this locality preserved, can not have an opportunity to have used the scrambler of CRNC appointment, thereby guaranteed E-AGCH from mechanism, the scrambler of E-RGCH and E-HICH channel is consistent with the pairing scrambler of down link reference channel of Physical Shared Channel, has stopped to occur on the scrambler problem wrong possibility.
The configuration of E-AGCH, E-RGCH and E-HICH channel comprises many information, and mainly on scrambler, other information configuration is same as the prior art in improvement of the present invention, can not elaborate here referring to disclosed related protocol and normative document.
After this enter step 530, after Node B finishes the configuration of E-AGCH, E-RGCH and E-HICH channel, return PHYSICAL SHARED CHANNELRECONFIGURATION RESPONSE (response of Physical Shared Channel reprovision) message to CRNC.
Done improvement at this second bright execution mode on the basis of first execution mode, CRNC sends to the IE that increases the new reference channel of expression in the PHYSICAL SHARED CHANNEL RECONFIGURATIONREQUEST message of NodeB.After Node B changes the reference channel of Physical Shared Channel in sub-district or the sub-district lobe, use pairing scrambler configuration E-AGCH, E-RGCH of new reference channel and E-HICH channel.
Newly-increased IE " HSDPA and E-DCH Associated CPICH Information " (the CPICH information that HSDPA is related with E-DCH) is used to the reference Common Pilot Channel of representing that a sub-district Physical Shared Channel (comprising HSDPA/E-DCH) is adopted.Should comprise optional IE " Primary CPICH Usage For Channel Estimation " and optional IE " SecondaryCPICH Information " by newly-increased IE, as shown in table 5.
Table 5
| IE/Group Name (information element/group name claims) | Presence (attribute occurring) | Range (scope) | IE Type and Reference (information element and reference) | Semantics Description (semantic description) | Criticality (severity) | Assigned Criticality (severity of appointment) |
| Primary CPICH Usage For Channel Estimation (basic CPICH channel estimating usage) | Zero (optional) | 9.2.2.33A | YES (being) | Ignore (ignoring) | ||
| Secondary CPICH I nformation (the 2nd CPICH information) | Zero (optional) | Common Physical Channe l ID9.2.1.13 public physic channel ID | YES (being) | Ignore (ignoring) |
Specifically, the value of IE " Primary CPICH Usage For Channel Estimation " is enumeration type " Primary CPICH may be used " (basic CPICH can use) and " PrimaryCPICH shall not be used " (basic CPICH cannot use), when the value of this IE is " PrimaryCPICH may be used ", this UE can utilize P-CPICH to carry out receiving relevant channel estimating with Physical Shared Channel (HSDPA and E-DCH), when the value of this IE is " Primary CPICHshall not be used ", this UE will not utilize P-CPICH to carry out receiving relevant channel estimating with Physical Shared Channel (HSDPA and E-DCH).The value of IE " Secondary CPICH Information " is the integer of 0-255, be the ID of each S-CPICH channel in the table 1, therefore, when this IE occurs, UE can utilize the indicated S-CPICH channel of this IE to carry out receiving relevant channel estimating with Physical Shared Channel (HSDPA and E-DCH).As IE " HSDPA and E-DCH Associated CPICHInformation " when not occurring, represent to use P-CPICH to carry out and Physical Shared Channel (HSDPA and E-DCH) receives relevant channel estimating then defaultly.
In sum, based on NBAP message " the PHYSICALSHARED CHANNEL RECONFIGURATION REQUEST " structure of second execution mode of the present invention (representing the part of deleting) as shown in table 6 for knowing in the expression table with Dbl Strikethrough.
Table 6
Making above-mentioned improved main purpose in second execution mode is because except supporting beam shaping, S-CPICH also may be used for other purpose.Therefore by increasing the IE of the new reference channel of expression, make system allow to change the reference channel of a sub-district Physical Shared Channel (comprising HSDPA/E-DCH), make the setting of shared channel more flexible, for function expansion is from now on laid a good foundation.
By changing the reference channel of sub-district Physical Shared Channel (comprising HSDPA/E-DCH), also can reach the effect that changes the scrambler that E-AGCH, E-RGCH and E-HICH channel will dispose, but because this change acts on all HSDPA/E-DCH channels, so can not cause the problem of specifying E-AGCH, E-RGCH and E-HICH channel scrambler to be brought separately in the prior art.
Though pass through with reference to some of the preferred embodiment of the invention, the present invention is illustrated and describes, but those of ordinary skill in the art should be understood that and can do various changes to it in the form and details, and without departing from the spirit and scope of the present invention.
Claims (10)
1. a Physical Shared Channel reallocating method is characterized in that, comprises following steps:
Radio network controller is pre-configured at least one down link reference channel and corresponding scrambler thereof in base-station node;
Described base-station node uses the dedicated channel E-DCH downlink physical control channel of the pairing scrambler configuration of the down link reference channel of Physical Shared Channel enhancing, avoids directly being specified to this base-station node by described radio network controller the scrambler of this E-DCH downlink physical control channel.
2. Physical Shared Channel reallocating method according to claim 1 is characterized in that, if described base-station node is not supported beam forming technique, then with the basic Common Pilot Channel of sub-district, described Physical Shared Channel place as described reference channel;
If described base-station node is supported beam forming technique, then with second Common Pilot Channel of sub-district, described Physical Shared Channel place lobe as described reference channel.
3. Physical Shared Channel reallocating method according to claim 1 is characterized in that, described E-DCH downlink physical control channel comprises:
E-DCH relative authorization channel, E-DCH absolute grant channel and E-DCH hybrid automatic repeat request indication channel.
4. Physical Shared Channel reallocating method according to claim 1 is characterized in that, avoids directly being specified to described base-station node by described radio network controller the scrambler of E-DCH downlink physical control channel in the following manner:
In " PHYSICAL SHARED CHANNEL RECONFIGURATION REQUEST " message, avoid carrying information element " E-AGCH And E-RGCH/E-HICH FDD ScramblingCode ".
5. Physical Shared Channel reallocating method according to claim 1 is characterized in that, also comprises following steps:
Described radio network controller notifies described base-station node to change the reference channel of Physical Shared Channel in sub-district or the sub-district lobe;
Described base-station node uses the pairing scrambler of new reference channel to dispose described E-DCH downlink physical control channel after changing the reference channel of Physical Shared Channel in sub-district or the sub-district lobe.
6. Physical Shared Channel reallocating method according to claim 1 is characterized in that, described radio network controller notifies described base-station node to change the reference channel of sub-district or sub-district lobe in the following manner:
In " PHYSICAL SHARED CHANNEL RECONFIGURATION REQUEST " message, carry the information element of the new reference channel of expression.
7. Physical Shared Channel reallocating method according to claim 6, it is characterized in that, comprise optional information element " Primary CPICH UsageFor Channel Estimation " and optional information element " Secondary CPICH Information " in the information element of the reference channel that described expression is new.
8. Physical Shared Channel reallocating method according to claim 7, it is characterized in that, when the value of described information element " Primary CPICH may be used " is " Primary CPICH may beused ", with basic Common Pilot Channel as new reference channel;
When the value of described information element " Primary CPICH may be used " is " Primary CPICHshall not be used ", expression is forbidden basic Common Pilot Channel as described reference channel, if there is information element " Secondary CPICH Information ", then with indicated second Common Pilot Channel of the value of information element " SecondaryCPICH Information " as described reference channel.
9. Physical Shared Channel reallocating method according to claim 7, it is characterized in that, when information element described in the information element of the new reference channel of described expression " Primary CPICH may beused " and information element " Secondary CPICH Information " when all not occurring, then with basic Common Pilot Channel as described reference channel.
10. Physical Shared Channel reallocating method according to claim 1, it is characterized in that the described Physical Shared Channel reallocating method of claim 1 is applied in controls radio network controller to the high speed downlink packet access of base-station node and the reprovision of E-DCH related physical channel in the base-station node applying portion.
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| CN101521563A (en) * | 2008-02-25 | 2009-09-02 | 中兴通讯股份有限公司 | Collocation method for confirming time delay in time division synchronous code division multiple access multi-carrier system |
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| EP3667943B1 (en) * | 2018-12-14 | 2021-03-31 | ASUSTek Computer Inc. | Method and apparatus of beam indication in a wireless communication system |
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