CN101616371A - A kind of communication means, system and device that adopts channel code - Google Patents
A kind of communication means, system and device that adopts channel code Download PDFInfo
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Abstract
The embodiment of the invention discloses a kind of communication means, system and device that adopts channel code, this method comprises: follow in nothing under the high-speed down data transmission mode of High-Speed Shared Control Channel, receive channel sign indicating number indication information, which channel code described channel code indication information indication adopts carry out the communication of solid size road under the situation of two or more channel codes; According to described channel code indication information, use the channel code of described channel code indication information indication to carry out the communication of solid size road.The embodiment of the invention has realized when adopting nothing to follow the high-speed down data transmission mode technology solid size road of High-Speed Shared Control Channel to transmit TBS for the first time, to the flexible use of channel code code channel, improved and used cell throughout and the capacity gain of not having the high-speed down data transmission mode technology of following High-Speed Shared Control Channel.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a communication method, system, and apparatus using channelization codes.
Background
The HS-SCCH less operation technique is that when a UE is in an RRC Cell _ DCH (Radio resource Control Cell-Dedicated Channel) state, if data transmission between the UE and a NodeB (node B) is carried on an HS-DSCH (High Speed downlink Shared Channel), the NodeB does not need to accompany an HS-SCCH (High Speed Shared Control Channel) when a Transport Block TBS (Transport Block Set) is transmitted for the first time to the UE, so that power consumption of the NodeB downlink HS-SCCH is reduced, and the purpose of increasing the Cell capacity is achieved. It should be noted that, in the existing protocol, the Size of the Transport Block is not larger than the Size of the Transport Block (Transport Block Size) pointed by at most 4 Transport Block Size indexes pre-configured in the signaling connection HS-SCCH less Information.
Taking a UMTS (Universal Mobile Telecommunications System) System with a traditional architecture as an example, in a normal use flow of HS-SCCH less operation specified by an existing standard, if data that a NodeB needs to send to a UE satisfies an initial HS-SCCH less operation condition of a scheduling algorithm, the NodeB performs data transmission according to a TBS negotiated with an RNC (Radio Network Controller) and a corresponding HS-PDSCH (High Speed Physical downlink shared Channel) channelization code, where the NodeB can only use a first channelization code allocated by the NodeB when a single HS-PDSCH is needed to transmit the TBS.
In the process of implementing the invention, the inventor finds that the prior art has at least the following problems:
in the HS-SCCH less operation mode, when one or more of 4 TBSs preconfigured by the RNC needs to transmit using a single HS-PDSCH channelization code, only the first of two consecutive channelization codes allocated by the NodeB can be used, and the restriction is defined by an HS-SCCH less Information cell, so that when the NodeB uses a scheduling algorithm to perform multi-user TFRC (Transport format resource Combination), if the first channelization code is already used by other HS-SCCH less operation users or non-HS-SCCH less operation users sharing the first channelization code at this time, the user cannot transmit data using the less mode, which limits the application of the HS-SCCH less operation.
In addition, under the condition that the second channelization code is not allocated to other less users as the first channelization code of other less users, the second channelization code cannot be used for other less users to carry out HS-SCCH less operation transmission at the moment, and code word fragments are easy to generate, or the second channelization code can only be used in a non-less mode, and the application of the HS-SCCH less operation is also limited.
The above problems can greatly limit the application of the HS-SCCH less operation, so that the gain of the HS-SCCH less operation technology is difficult to obtain in practical application.
It should be noted that the above is described with a conventional UMTS, but similar problems exist in a flat-architecture UMTS system.
Disclosure of Invention
The embodiment of the invention provides a communication method, a system and a device adopting channelization codes, which are used for realizing the flexible use of the channelization codes in a high-speed downlink data transmission mode without an accompanying high-speed shared control channel.
To achieve the above object, an aspect of the present invention provides a communication method using channelization codes, including: receiving channelization code indication information in a high-speed downlink data transmission mode without an accompanying high-speed shared control channel, wherein the channelization code indication information indicates which channelization code is adopted for single-channel communication under the condition of two or more channelization codes;
and according to the channelization code indication information, performing single-code-channel communication by using the channelization code indicated by the channelization code indication information.
In another aspect, an embodiment of the present invention further provides a control network element, including:
the information setting module is used for setting channelized code indication information under a high-speed downlink data transmission mode without an accompanying high-speed shared control channel, wherein the channelized code indication information indicates which channelized code is adopted for single-code-channel communication under the condition of two or more channelized codes;
and the information sending module is used for sending the channelization code indication information set by the information setting module to a wireless transceiver and/or User Equipment (UE).
In another aspect, an embodiment of the present invention further provides a wireless transceiver apparatus, including:
the information receiving module is used for receiving channelized code indication information in a high-speed downlink data transmission mode without an accompanying high-speed shared control channel, wherein the channelized code indication information indicates which channelized code is adopted for single-code-channel communication under the condition of two or more channelized codes;
and the communication module is used for carrying out single-code channel communication by using the channelization codes indicated by the channelization code indication information according to the channelization code indication information received by the information receiving module.
In another aspect, an embodiment of the present invention further provides a user equipment UE, including:
a receiving module, configured to receive channelization code indication information in a high-speed downlink data transmission mode without an associated high-speed shared control channel, where the channelization code indication information indicates which channelization code is used for single-channel communication in a case of two or more channelization codes;
and the communication module is used for carrying out single-code channel communication by using the channelization codes indicated by the channelization code indication information according to the channelization code indication information received by the receiving module.
In another aspect, an embodiment of the present invention further provides a communication system, which includes a control network element and a wireless transceiver.
Compared with the prior art, the embodiment of the invention has the following advantages: by the embodiment of the invention, under a high-speed downlink data transmission mode without an accompanying high-speed shared control channel, the control network element indicates which channelization code is adopted for communication under the condition of two or more channelization codes through the channelization code indication information, so that the network element receiving the channelization code indication information can carry out single-code channel communication by using the channelization code indicated by the channelization code indication information according to the channelization code indication information. The technical scheme provided by the embodiment of the invention realizes the flexible use of the code channel of the channelized code when the TBS is transmitted for the first time by adopting the high-speed downlink data transmission mode technology without the accompanied high-speed shared control channel, solves the problems of limited application of the channelized code and possibly caused code word fragment when the TBS is transmitted by adopting the single code channel in the existing mode, and improves the cell throughput and capacity gain of the high-speed downlink data transmission mode technology without the accompanied high-speed shared control channel.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a flowchart of a communication method using channelization codes according to an embodiment of the present invention;
fig. 2 is a flowchart of a first embodiment of a communication method using channelization codes according to the present invention;
fig. 3 is a structural diagram of a control network element according to an embodiment of the present invention;
FIG. 4 is a block diagram of a wireless transceiver device according to an embodiment of the present invention;
fig. 5 is a structural diagram of a user equipment UE according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention takes a UMTS system with a traditional architecture as an example, provides a communication method adopting channelization codes, and through the embodiment of the invention, when one or more of 4 TBSs pre-configured in a high-speed downlink data transmission mode without a high-speed shared control channel needs to adopt single-code-channel transmission in the initial transmission, the flexible use of the channelization codes can be realized.
As shown in fig. 1, a flowchart of a communication method using channelization codes according to an embodiment of the present invention specifically includes:
step S101, receiving channelized code indication information in a high-speed downlink data transmission mode without an associated high-speed shared control channel, wherein the channelized code indication information indicates which channelized code is adopted for single-channel communication under the condition of two or more channelized codes.
The high speed downlink data transmission mode without the accompanying high speed shared control channel can be specifically an HS-SCCH less operation mode.
And step S102, according to the channelization code indication information, using the channelization code indicated by the channelization code indication information to perform single-code channel communication.
For the wireless transceiver, if the channelization code indication information indicates that the wireless transceiver is transmitting the TBS to the UE for the first time, fixing one channelization code of two or more channelization codes allocated by the wireless transceiver, determining, by the wireless transceiver, a channelization code used when transmitting the TBS to the UE for the first time according to the channelization code indication information, and transmitting the TBS by using the determined channelization code;
or, if the channelization code indication information indicates that the wireless transceiver transmits the TBS to the UE for the first time, randomly adopting any one of two or more channelization codes allocated by the wireless transceiver, determining, by the wireless transceiver, the channelization code adopted when the TBS is transmitted to the UE for the first time through a scheduling algorithm according to the channelization code indication information, and transmitting the TBS by using the determined channelization code.
For the UE, when the channelization code indication information indicates that the UE receives the TBS sent by the wireless transceiver device on one of two or more channelization codes allocated by the wireless transceiver device, the UE determines a channelization code for receiving the TBS according to the channelization code indication information, and receives the TBS sent by the wireless transceiver device on the determined channelization code;
or, when the channelization code indication information indicates that the UE receives the TBS sent by the wireless transceiver device on any one of two or more channelization codes allocated by the wireless transceiver device, the UE despreads the channelization codes allocated by the wireless transceiver device respectively according to the channelization code indication information, determines a channelization code for receiving the TBS, and receives the TBS sent by the wireless transceiver device on the determined channelization code.
In the embodiment of the present invention, the radio transceiver may be a base station, for example: NodeB, a home base station, a macro base station, and the like, but the embodiment of the present invention is described with NodeB as an example, channelization code indication information may be sent to NodeB by an RNC through an NBAP (NodeB Application Part) signaling, and sent to UE through an RRC message;
alternatively, the wireless transceiver may be a transceiver in an E-NodeB (Evolution-NodeB) with a flat structure, and the channelization code indication information is sent by a control unit in the E-NodeB with the flat structure.
The transmission mode of the high-speed downlink data without the accompanying high-speed shared control channel is as follows: HS-SCCH less operation mode.
In the above communication method using channelization codes, the control network element indicates which channelization code is used for communication under the condition of two or more channelization codes through the channelization code indication information, so that the network element receiving the channelization code indication information can use the channelization code indicated by the channelization code indication information for single-channel communication according to the channelization code indication information. Specifically, the following description may be given by taking an example in which a maximum of two consecutive channelization codes are allocated to all HS-scchs operation users: under HS-SCCH less operation mode, the embodiment of the invention realizes that when a base station uses a single code channel to transmit TBS to UE for the first time, the base station can use not only the first channelizing code but also the second channelizing code, thereby solving the problems of limited application of the channelizing codes and possibly caused code word fragments when the single code channel is used to transmit TBS under the existing less mode, improving the cell throughput and capacity gain of the HS-SCCH less operation technology, and increasing the application of the HS-SCCH less operation.
In addition, it can be understood that there is a correspondence between channelization codes and code channels of channelization codes.
In the following description of the embodiment of the present invention, the channelization code indication Information sent to the base station is exemplified by a Continuous Packet Connectivity HS-SCCH less Information cell, and the channelization code indication Information sent to the UE is exemplified by an HS-SCCH less Information cell.
In the first embodiment of the present invention, by modifying an HS-SCCH less Information cell in an RRC message, on the premise of maintaining a combination of at most 4 possible HS-DSCH (High-Speed Downlink Shared Channel ) TBSs and channelization codes with an HS-SCCH in an existing HS-SCCH less operation mode (hereinafter referred to as "less mode"), when a base station needs to use a single Channel to transmit a TBS for the first time in the less mode, an RNC notifies, through the HS-SCCH less Information cell, the channelization codes used by the base station when the base station uses the single Channel to transmit the TBS for the first time to a UE, so that the UE determines the channelization codes used to receive the TBS, where the channelization codes may be a first channelization code or a second channelization code.
In addition, the RNC can inform the NodeB that the current UE supports the definition of the HS-SCCH less Information cell by modifying the Continuous Packet connectivity HS-SCCH less Information cell of the NBAP, and the NodeB can determine to adopt the first or second channelization code when using the single-code channel to transmit the TBS for the first time according to the Continuous Packet connectivity HS-SCCH less Information cell when using a scheduling algorithm to carry out TFRC (Transport format resource Combination).
The definition of the HS-SCCH less Information cell after the improvement of the embodiment of the present invention is shown in table 1, and the indication Information in the HS-SCCH less Information cell is a newly added HS-PDSCH single code Index Used IE (High-Speed Physical Downlink Shared Channel single code Index Used Information Element) for notifying the UE TBS of the channelization code Used by the base station when the base station uses the single code Channel for the first time transmission.
TABLE 1
| Cell/group name | Whether Need | Multiple Multi | Type and index | Description of syntax | Version(s) |
| CHOICE HS-SCCH lessoperation | MP | REL-7 | |||
| >Continue HS-SCCH lessoperation | No data (no data) | REL-7 | |||
| >New HS-SCCH lessoperation | REL-7 | ||||
| >>HS-PDSCH Code Index | MP | Integer (1..15) | Index of firstHS-PDSCH code | REL-7 | |
| >>Transport Block SizeList | 1..<maxHS-SCCHLessTrBlk＞ | REL-7 | |||
| >>>Transport Block SizeIndex | MP | Integer (1..90) | Index of theMAC-hs transportblock size as | REL-7 |
| described inappendix A of[15] | |||||
| >>>HS-PDSCH SecondCode Support | MP | Boolean number | Indicates whetherthe secondHS-PDSCH code isused for this TBsize.If TRUE，theHS-PDSCH secondcode index value isthe value of IE“HS-PDSCH CodeIndex”incrementedby 1. | REL-7 | |
| >>>HS-PDSCH singleCode Index Used | OP | Enumeration (First, Second) | This IE is validwhile HS-PDSCHSecond CodeSupport is False.If“First”，theHS-PDSCH codeindex value is usedfor this TB size only.If“Second”，the value of IE“HS-PDSCH CodeIndex”incrementedby 1 is used forthis TB size only. | REL-8 |
The definition of the Continuous Packet Connectivity HS-SCCH less Information cell after the improvement of the embodiment of the present invention is shown in table 2, and the indication Information in the Continuous Packet Connectivity HS-SCCH less Information cell is the newly added HS-PDSCH single Code index used IE for indicating that the base station fixedly adopts the first or second channelization Code when the TBS is transmitted for the first time.
TABLE 2
| Cell/group name | Presence Presence | Range of | Cell type and index | Description of syntax |
| >>Transport BlockSize List | 1..<maxnoofHS-DSCHTBSsHS-SCCHless> | |||
| >>>Transport BlockSize Index | M | Integer (1.. maxnoofHS-DSCHTBSs) | ||
| >>>HS-PDSCHSecond Code Support | M | Boolean number | True＝The secondHS-PDSCH code shallalso be used；False＝The secondHS-PDSCH code shallnot be used | |
| >>>HS-PDSCH singleCode Index Used | OP | Enumeration (First, Second) | this IE is valid whileHS-PDSCH SecondCode Support is False.If “First”，the |
| HS-PDSCH code indexvalue is used for this TBsize only.If “Second”，thevalue of IE“HS-PDSCHCode Index”incrementedby 1 is used for this TBsize only. |
Through the first embodiment of the invention, the RNC equally distributes the channelizing codes needed when the TBS is transmitted by using the single code channel, thereby improving the channelizing code utilization rate of the HS-SCCH less operation and reducing the probability of channelizing code fragments. For example, when only two continuous channelization codes are allocated to all HS-SCCH less operation users in a cell at most, and the sequence numbers of the two channelization codes are represented by x and x +1, the RNC may allocate x or x +1 to the user in the HS-SCCH less operation mode in sequence as the HS-PDSCH channelization code when the user uses the HS-SCCH less operation mode to transmit the TBS using a single channel.
The second embodiment of the invention is that by modifying the definition of HS-SCCH less Information cell in RRC message, under the premise of keeping 4 possible HS-DSCH TBS and channelization code combinations at most under the prior HS-SCCH less operation mode with HS-SCCH, when the base station needs to use single code channel to transmit TBS for the first time under the less mode, RNC informs the UE of the channelization code adopted by the base station when using single code channel to transmit TBS for the first time through the HS-SCCH less Information cell, wherein the channelization code can be the first channelization code or the second channelization code. And the NodeB adopts a scheduling algorithm to determine which channelization code is used, and at the moment, the UE needs to despread the two channelization codes respectively to determine the code channel for receiving the TBS. And simultaneously modifying a Continuous Packet connectivity HS-SCCH less Information cell of the NBAP to inform the current UE of supporting the NodeB to flexibly use the first or second HS-PDSCH channelization code to transmit the TBS, so that the NodeB can flexibly allocate the HS-PDSCH channelization code when using a scheduling algorithm to carry out TFRC.
The definition of the HS-SCCH less Information cell improved by the second embodiment of the present invention is shown in table 3, and the indication Information in the HS-SCCH less Information cell is a newly added Flexible use of HS-PDSCH single Code Support IE (Flexible use of HS-PDSCH single Code Support Information Element, which supports Flexible use of HS-PDSCH single Code channel cells), and is used for indicating the UE to despread two channelization codes respectively when the base station uses a single Code channel to transmit the TBS for the first time, and determining the channelization Code for receiving the TBS.
TABLE 3
| Cell/group name | Whether Need | Multiple Multi | Type and index | Description of syntax | Version(s) |
| CHOICE HS-SCCH lessoperation | MP | REL-7 | |||
| >Continue HS-SCCH lessoperation | No data (no data) | REL-7 | |||
| >New HS-SCCH lessoperation | REL-7 | ||||
| >>HS-PDSCH Code Index | MP | Integer (1..15) | Index of firstHS-PDSCH code | REL-7 | |
| >>Transport Block SizeList | 1..<maxHS-SCCHLessTrBlk> | REL-7 | |||
| >>>Transport Block SizeIndex | MP | Integer (1..90) | Index of theMAC-hs transportblock size asdescribed inappendix A of[15] | REL-7 | |
| >>>HS-PDSCH Second | MP | Boolean number | Indicates whether | REL-7 |
| Code Support | the secondHS-PDSCH code isused for this TBsize.If TRUE，theHS-PDSCH secondcode index value isthe value of IE“HS-PDSCH CodeIndex”incrementedby 1. | ||||
| >>>Flexible use ofHS-PDSCH single CodeSupport | OP | Boolean number | This IE is validwhile HS-PDSCHSecond CodeSupport is False.If“Ture”，theHS-PDSCH codeindex value and thevalue incrementedby 1 could be usedseparately for thisTB size. | REL-8 |
The definition of the modified Continuous Packet Connectivity HS-SCCH less Information cell in the second embodiment of the present invention is shown in table 4, and the indication Information in the Continuous Packet Connectivity HS-SCCH less Information cell is a newly added Flexible use of HS-PDSCH single code Support IE for indicating that the NodeB can flexibly use the first or second channelization code through a scheduling algorithm when using a single channel to transmit the TBS for the first time.
TABLE 4
| Cell/group name | Presence Presence | Range of | Cell type and index | Description of syntax |
| >>Transport BlockSizeList | 1..<maxnoofHS-DSCHTBSsHS-SCCHless> | |||
| >>>Transport BlockSize Index | M | Integer (1.. maxnoofHS-DSCHTBSs) | ||
| >>>HS-PDSCHSecond Code Support | M | Boolean number | True＝The secondHS-PDSCH code shallalso be usedFalse＝The secondHS-PDSCH code shallnot be used | |
| >>>Flexible use ofHS-PDSCH singleCode Support | OP | Boolean number | This IE is validwhile HS-PDSCHSecond Code Support isFalse.If “Ture”，theHS-PDSCH code indexvalue and the valueincremented by 1 couldbe used separately forthis TB size. |
In the communication method adopting the channelization codes, the RNC configures the HS-SCCH less Information cell and the Continuous Packet Connectivity HS-SCCH less Information cell, so that when the NodeB uses a single channel to transmit the TBS for the first time, the NodeB not only can use the first channelization code, but also can use the second channelization code, and sends the RRC message to the UE to ensure that the UE determines to receive the channelization code of the TBS. Therefore, when the HS-SCCH less operation technology is adopted to transmit the TBS for the first time in a single code channel, the distributed first HS-PDSCH channelizing code can be used, the second HS-PDSCH channelizing code can also be used, and the cell throughput and capacity gain of the HS-SCCH less operation technology are improved.
As shown in fig. 2, a flowchart of a first embodiment of the communication method using channelization codes in the present invention specifically includes:
in step S201, the RNC learns that the NodeB supports the HS-SCCH communication mode through a contenous packet Connectivity HS-SCCH less Capability IE carried in an audio RESPONSE or RESOURCE STATUS INDICATION message fed back by the NodeB.
Step S202, UE informs RNC that it supports HS-SCCH less operation mode through HS-SCCH less operation support IE carried in RRC CONNECTION SETUP COMPLETE message > UE radio access capability message > Physical channel capability message.
In step S203, if the RNC wants to configure an HS-SCCH less operation mode for the HS-DSCH radio link between the NodeB and the UE, it needs to first determine that the UE is in an RRC _ Cell DCH state, and there is no DCH transport channel configuration between the UE and the NodeB.
Step S204, RNC informs NodeB to configure HS-SCCH less operation mode and related parameters for NodeB and UE, including at most 4 TBSs and the number of HS-PDSCH channelizing codes needed by each TBS, through Continuous Packet Connectivity HS-SCCH less information IE contained in the information of RADIO LINK SETUP REQUEST and the like.
In the embodiment of the invention, an HS-PDSCH single Code Index Used IE is newly added in a Continuous Packet Connectivity HS-SCCH less Information cell and is Used for indicating that a base station fixedly adopts a first or second channelizing Code when the TBS is transmitted for the first time; or,
the embodiment of the invention adds a Flexible use of HS-PDSCH single Code Support IE in a Continuous Packet Connectivity HS-SCCH less Information cell for indicating that when NodeB uses a single Code channel to transmit TBS for the first time, the NodeB can flexibly adopt a first or a second channelization Code through a scheduling algorithm.
In step S205, the NodeB feeds back, through a Continuous Packet Connectivity HS-SCCH less information RESPONSE IE included in a message such as RADIO LINK SETUP RESPONSE (RADIO connection SETUP RESPONSE), a channelization code index value in the HS-SCCH less operation mode allocated for the RADIO LINK, where the current protocol specifies at most two (there may be extension in the future).
In step S206, the RNC informs the UE of the relevant parameters of the UE in the HS-SCCH less operation mode through the HS-SCCH less Information IE contained in the RADIO BEARER SETUP message and the like.
In the embodiment of the invention, an HS-PDSCH single code Index Used IE is newly added in an HS-SCCH less Information cell and is Used for informing a UE of a channelization code adopted by a base station when a TBS is transmitted for the first time by using a single code channel; or,
the embodiment of the invention adds the Flexible use of the HS-PDSCH single Code Support IE in the HS-SCCH less Information cell, and is used for indicating the UE to despread two channelizing codes respectively and determining the Code channel for receiving the TBS when the base station uses a single Code channel to transmit the TBS for the first time.
Step S207, when the UE is in the RRC Cell _ DCH state and no DCH transmission channel is configured between the UE and the NodeB, after the UE receives the HS-SCCH LESS Information IE and configures the HS-SCCH-LESS-PARAMS parameter, the UE sets the HS-SCCH-LESS-STATUS to True and enters the HS-SCCH LESS operation mode state.
Step S208, if the data to be sent to the UE satisfies the HS-SCCH less operation initial transmission condition of the scheduling algorithm, the NodeB performs data transmission according to the TBS negotiated with the RNC and the corresponding HS-PDSCH channelization code, where the NodeB may use either the first channelization code allocated by the NodeB or the second channelization code allocated by the NodeB when the TBS requires single-channel transmission.
As shown in fig. 3, a structure diagram of a control network element according to an embodiment of the present invention includes:
an information setting module 31, configured to set channelization code indication information in a high-speed downlink data transmission mode without an associated high-speed shared control channel, where the channelization code indication information indicates which channelization code is used for communication in a case of two or more channelization codes;
an information sending module 32, configured to send the channelization code indication information set by the information setting module 31 to the wireless transceiver and/or the user equipment UE.
When the wireless transceiver is a NodeB, the information setting module 31 may include:
a first setting sub-module 311, configured to set channelization code indication information in an NBAP signaling, then the information sending module 32 is configured to send the NBAP signaling set by the first setting sub-module 311 to the NodeB, so as to indicate that the NodeB determines a channelization code used when the TBS is transmitted to the UE for the first time, and transmits the TBS using the determined channelization code.
A second setting sub-module 312, configured to set channelization code indication information in an RRC message, the information sending module 32 is configured to send the RRC message set by the second setting sub-module 312 to the UE, so as to instruct the UE to determine a channelization code for receiving the TBS according to the channelization code indication information, and receive the TBS sent by the NodeB on the determined channelization code.
In addition, when the flat architecture is applied, the wtru can be a transceiver unit in an E-NodeB of the flat architecture (similar to the NodeB entity in the conventional architecture), and the channelization code indication message is sent by a control unit in the E-NodeB of the flat architecture (similar to the RNC entity in the conventional architecture).
It should be noted that, for the case that the wireless transceiver is a transceiver unit in an E-NodeB, since the RNC entity and the NodeB entity are merged into the E-NodeB at this time, the NBAP signaling and the like transmitted between the RNC and the NodeB are both internal transmission signals of the E-NodeB, and according to the design of a specific manufacturer, the NBAP signaling may be used to transmit channelization code indication information between the internal control unit of the E-NodeB and the transceiver unit, or may be used to transmit channelization code indication information between the control unit and the transceiver unit by using a transmission format defined inside the E-NodeB.
In the above control network element, the information sending module 32 sends the channelization code indication information set by the information setting module 31 to the wireless transceiver and/or the UE, and indicates that the wireless transceiver and/or the UE can use not only the first channelization code but also other channelization codes when performing single-channel communication.
As shown in fig. 4, a block diagram of a wireless transceiver according to an embodiment of the present invention includes:
an information receiving module 41, configured to receive channelization code indication information in a high-speed downlink data transmission mode without an associated high-speed shared control channel, where the channelization code indication information indicates which channelization code is used for single-channel communication in a case of two or more channelization codes;
the communication module 42 is configured to perform single-channel communication by using the channelization code indicated by the channelization code indication information according to the channelization code indication information received by the information receiving module 41.
When the wireless transceiver device is a NodeB, the communication module 42 may include:
the first communication sub-module 421 is configured to, when the channelization code indication information indicates that the wireless transceiver is transmitting the TBS to the UE for the first time and a certain one of two or more channelization codes allocated by the wireless transceiver is fixed, determine, according to the channelization code indication information, a channelization code used when the TBS is transmitted to the UE for the first time, and transmit the TBS using the determined channelization code.
A second communication sub-module 422, configured to, when the channelization code indication information indicates that the wireless transceiver apparatus is transmitting the TBS to the user equipment UE for the first time and randomly adopts any one of two or more channelization codes allocated by the wireless transceiver apparatus, determine, according to the channelization code indication information, a channelization code used when the TBS is transmitted to the UE for the first time through a scheduling algorithm, and transmit the TBS using the determined channelization code.
It should be noted that, when the wireless transceiver is NodeB, the channelization code indication information is sent to the UE by the radio network controller RNC through an RRC message; when the wireless transceiver is a transceiver unit in an E-NodeB in a flat architecture, the channelization code indication information is sent by a control unit in the E-NodeB in the flat architecture.
In the above wireless transceiver, the information receiving module 41 receives channelization code indication information indicating which channelization code is used for communication when the wireless transceiver is in two or more channelization codes, and the communication module 42 performs single-channel communication using the channelization code indicated by the channelization code indication information according to the channelization code indication information received by the information receiving module 41. Specifically, the following description may be given by taking as an example that only a maximum of two consecutive channelization codes are allocated to all HS-SCCH less operation users: the embodiment of the invention realizes that when the HS-SCCH less operation technology is adopted to transmit the TBS for the first time in a single code channel, not only the first HS-PDSCH channelizing code allocated by the wireless transceiver can be used, but also the second HS-PDSCH channelizing code can be used, thereby improving the cell throughput and capacity gain of the HS-SCCH less operation technology.
As shown in fig. 5, a structure diagram of a user equipment UE according to an embodiment of the present invention includes:
a receiving module 51, configured to receive channelization code indication information in a high-speed downlink data transmission mode without an associated high-speed shared control channel, where the channelization code indication information indicates which channelization code is used for single-channel communication in a case of two or more channelization codes;
the communication module 52 is configured to perform single-channel communication by using the channelization code indicated by the channelization code indication information according to the channelization code indication information received by the receiving module 51.
Among them, the communication module 52 may include: the first communication sub-module 521 is configured to, in a high-speed downlink data transmission mode without an accompanying high-speed shared control channel, determine, according to channelization code indication information, a channelization code for receiving a TBS when channelization code indication information indicates that the UE receives the TBS sent by the wireless transceiver on one of two or more channelization codes allocated by the wireless transceiver, and receive, on the determined channelization code, the TBS sent by the wireless transceiver.
A second communication sub-module 522, configured to, in a high-speed downlink data transmission mode without an associated high-speed shared control channel, when the channelization code indication information indicates that the UE receives the TBS sent by the wireless transceiver on any one of two or more channelization codes allocated by the wireless transceiver, despread the channelization codes allocated by the wireless transceiver respectively according to the channelization code indication information, determine a channelization code for receiving the TBS, and receive the TBS sent by the wireless transceiver on the determined channelization code.
In the UE, the receiving module 51 receives the channelization code indication information, and the communication module 52 uses the channelization code indicated by the channelization code indication information to perform single-channel communication according to the channelization code indication information received by the receiving module 51. Specifically, the embodiment of the invention can only allocate two continuous channelization codes to all HS-SCCH less operation users at most, and realizes that the wireless transceiver can use the first channelization code or the second channelization code when using a single channel to transmit the TBS for the first time, and the UE can receive the TBS on the corresponding channelization code, thereby solving the code fragment problem possibly caused by using the single channel to transmit the TBS in the existing less mode and improving the cell throughput and capacity gain applying the HS-SCCH less operation technology.
An embodiment of the present invention further provides a communication system, including the foregoing control network element and wireless transceiver. Alternatively, the communication system may include the aforementioned control network element and UE, or the aforementioned radio transceiver and UE, and the aforementioned control network element, radio transceiver and UE.
Through the above description of the embodiments, those skilled in the art will clearly understand that the present invention may be implemented by hardware, or by software plus a necessary general hardware platform. Based on such understanding, the technical solution of the present invention can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a usb disk, a removable hard disk, etc.), and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the method according to the embodiments of the present invention.
Those skilled in the art will appreciate that the drawings are merely schematic representations of one preferred embodiment and that the blocks or flow diagrams in the drawings are not necessarily required to practice the present invention.
Those skilled in the art will appreciate that the modules in the devices in the embodiments may be distributed in the devices in the embodiments according to the description of the embodiments, and may be correspondingly changed in one or more devices different from the embodiments. The modules of the above embodiments may be combined into one module, or further split into multiple sub-modules.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
The above disclosure is only for a few specific embodiments of the present invention, but the present invention is not limited thereto, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.
Claims (18)
1. A communication method using channelization codes, comprising:
receiving channelization code indication information in a high-speed downlink data transmission mode without an accompanying high-speed shared control channel, wherein the channelization code indication information indicates which channelization code is adopted for single-channel communication under the condition of two or more channelization codes;
and according to the channelization code indication information, performing single-code-channel communication by using the channelization code indicated by the channelization code indication information.
2. The communication method using channelization codes according to claim 1, wherein said receiving channelization code indication information indicating which channelization code is used for single-channel communication with two or more channelization codes comprises:
a wireless receiving and sending device receives channelization code indicating information, wherein the channelization code indicating information indicates that one channelization code of two or more channelization codes allocated by the wireless receiving and sending device is fixedly adopted when a transmission block is transmitted to User Equipment (UE) for the first time;
the performing single-channel communication by using the channelization codes indicated by the channelization code indication information according to the channelization code indication information includes:
and the wireless transceiver determines the channelization codes adopted when the transmission block is transmitted to the UE for the first time according to the channelization code indication information, and transmits the transmission block by using the determined channelization codes.
3. The communication method using channelization codes according to claim 1, wherein said receiving channelization code indication information indicating which channelization code is used for single-channel communication with two or more channelization codes comprises:
a wireless receiving and sending device receives channelization code indicating information, wherein the channelization code indicating information indicates that the wireless receiving and sending device randomly adopts any one of two or more channelization codes allocated by the wireless receiving and sending device when a transmission block is transmitted to User Equipment (UE) for the first time;
the performing single-channel communication by using the channelization codes indicated by the channelization code indication information according to the channelization code indication information includes:
and the wireless transceiver determines the channelization codes adopted when the transmission block is transmitted to the UE for the first time through a scheduling algorithm according to the channelization code indication information, and transmits the transmission block by using the determined channelization codes.
4. The communication method according to claim 2 or 3, wherein the wireless transceiver is a NodeB, and the channelization code indication information is transmitted to the NodeB by an RNC through NBAP signaling; or,
the wireless transceiver is a transceiver unit in an E-NodeB with a flat structure, and the channelization code indication information is sent by a control unit in the E-NodeB with the flat structure.
5. The communication method using channelization codes according to claim 1, wherein said receiving channelization code indication information indicating which channelization code is used for single-channel communication with two or more channelization codes comprises:
the UE receives channelization code indicating information, wherein the channelization code indicating information indicates that the UE receives a transmission block sent by a wireless transceiver on one of two or more channelization codes allocated by the wireless transceiver;
the performing single-channel communication by using the channelization codes indicated by the channelization code indication information according to the channelization code indication information includes:
and the UE determines the channelizing code for receiving the transport block according to the channelizing code indication information and receives the transport block sent by the wireless transceiver on the determined channelizing code.
6. The communication method using channelization codes according to claim 1, wherein said receiving channelization code indication information indicating which channelization code is used for single-channel communication with two or more channelization codes comprises:
the UE receives channelization code indication information, wherein the channelization code indication information indicates that the UE receives a transmission block sent by a wireless transceiver on any one of two or more channelization codes allocated by the wireless transceiver;
the performing single-channel communication by using the channelization codes indicated by the channelization code indication information according to the channelization code indication information includes:
and the UE respectively despreads the channelized codes distributed by the wireless transceiver according to the channelized code indication information, determines the channelized codes for receiving the transport blocks, and receives the transport blocks sent by the wireless transceiver on the determined channelized codes.
7. The communication method using channelization codes according to claim 5 or 6, wherein the wireless transceiver is a NodeB, and the channelization code indication information is sent to the UE by a radio network controller RNC through an RRC message; or
The wireless transceiver is a transceiver unit in an E-NodeB in a flat structure, and the channelization code indication information is sent by a control unit in the E-NodeB in the flat structure.
8. The communication method using channelization codes according to claim 1, 2, 3, 5 or 6, wherein the high speed downlink data transmission mode without the associated high speed shared control channel is: and the high-speed shared control channel operates the HS-SCCH less operation mode with less transmission.
9. A controlling network element, comprising:
the information setting module is used for setting channelized code indication information under a high-speed downlink data transmission mode without an accompanying high-speed shared control channel, wherein the channelized code indication information indicates which channelized code is adopted for single-code-channel communication under the condition of two or more channelized codes;
and the information sending module is used for sending the channelization code indication information set by the information setting module to a wireless transceiver and/or User Equipment (UE).
10. The controlling network element of claim 9, wherein the radio is a NodeB;
the information setting module includes:
the first setting submodule is used for setting the channelization code indication information in an NBAP signaling;
and the information sending module is used for sending the NBAP signaling set by the first setting submodule to the NodeB so as to indicate the NodeB to determine a channelization code adopted when the transmission block is transmitted to the UE for the first time, and the transmission block is transmitted by using the determined channelization code.
11. The controlling network element of claim 9, wherein the radio is a NodeB;
the information setting module includes:
a second setting submodule, configured to set the channelization code indication information in an RRC message;
and the information sending module is used for sending the RRC message set by the second setting submodule to the UE so as to indicate the UE to determine the channelization code for receiving the transmission block according to the channelization code indication information and receive the transmission block sent by the NodeB on the determined channelization code.
12. A wireless transceiver device, comprising:
the information receiving module is used for receiving channelized code indication information in a high-speed downlink data transmission mode without an accompanying high-speed shared control channel, wherein the channelized code indication information indicates which channelized code is adopted for single-code-channel communication under the condition of two or more channelized codes;
and the communication module is used for carrying out single-code channel communication by using the channelization codes indicated by the channelization code indication information according to the channelization code indication information received by the information receiving module.
13. The wireless transceiver of claim 12, wherein the wireless transceiver is a NodeB;
the communication module includes:
and the first communication sub-module is used for determining a channelization code adopted when the transmission block is transmitted to the UE for the first time according to the channelization code indication information when the channelization code indication information indicates that the wireless transceiver is used for transmitting the transmission block to the UE for the first time and one channelization code of two or more channelization codes distributed by the wireless transceiver is fixedly adopted, and transmitting the transmission block by using the determined channelization code.
14. The wireless transceiver of claim 12, wherein the wireless transceiver is a NodeB;
the communication module includes:
and the second communication sub-module is used for determining the channelization code adopted when the transmission block is transmitted to the user equipment UE for the first time by using the scheduling algorithm according to the channelization code indication information when the channelization code indication information indicates that the wireless transceiver randomly adopts any one of two or more channelization codes allocated by the wireless transceiver when the transmission block is transmitted to the user equipment UE for the first time, and transmitting the transmission block by using the determined channelization code.
15. A User Equipment (UE), comprising:
a receiving module, configured to receive channelization code indication information in a high-speed downlink data transmission mode without an associated high-speed shared control channel, where the channelization code indication information indicates which channelization code is used for single-channel communication in a case of two or more channelization codes;
and the communication module is used for carrying out single-code channel communication by using the channelization codes indicated by the channelization code indication information according to the channelization code indication information received by the receiving module.
16. The UE of claim 15, wherein the communication module comprises:
and the first communication sub-module is used for determining a channelization code for receiving a transport block sent by the wireless transceiver device according to the channelization code indication information and receiving the transport block sent by the wireless transceiver device on the determined channelization code when the channelization code indication information indicates that the UE receives the transport block sent by the wireless transceiver device on one of two or more channelization codes allocated by the wireless transceiver device in a high-speed downlink data transmission mode without an associated high-speed shared control channel.
17. The UE of claim 15, wherein the communication module comprises:
and the second communication sub-module is used for despreading the channelized codes allocated by the wireless transceiver device according to the channelized code indication information when the channelized code indication information indicates that the UE receives the transport block sent by the wireless transceiver device on any one of two or more channelized codes allocated by the wireless transceiver device in a high-speed downlink data transmission mode without an associated high-speed shared control channel, determining the channelized code for receiving the transport block, and receiving the transport block sent by the wireless transceiver device on the determined channelized code.
18. A communication system comprising a controlling network element according to any one of claims 9 to 11 and a radio transceiver according to any one of claims 12 to 14.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102739377A (en) * | 2011-04-12 | 2012-10-17 | 华为技术有限公司 | Method for transmitting data by using hybrid automatic repeat request (HARQ) mechanism, equipment and system thereof |
| CN103974441A (en) * | 2013-01-31 | 2014-08-06 | 华为技术有限公司 | Dispatching method and device |
| WO2015035910A1 (en) * | 2013-09-10 | 2015-03-19 | 华为技术有限公司 | Uplink control information transmission method, user equipment, and network-side device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1184760C (en) * | 2001-12-30 | 2005-01-12 | 华为技术有限公司 | Data transmission control method of downgoing high speed shared channel in high speed data insertion system |
| KR100953151B1 (en) * | 2006-11-30 | 2010-04-19 | 이노베이티브 소닉 리미티드 | Method of enhancing continuous packet connectivity in a wireless communications system and related apparatus |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102739377A (en) * | 2011-04-12 | 2012-10-17 | 华为技术有限公司 | Method for transmitting data by using hybrid automatic repeat request (HARQ) mechanism, equipment and system thereof |
| CN103974441A (en) * | 2013-01-31 | 2014-08-06 | 华为技术有限公司 | Dispatching method and device |
| CN103974441B (en) * | 2013-01-31 | 2018-01-16 | 华为技术有限公司 | A kind of dispatching method and device |
| WO2015035910A1 (en) * | 2013-09-10 | 2015-03-19 | 华为技术有限公司 | Uplink control information transmission method, user equipment, and network-side device |
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