CN101414876B - Method and apparatus for sending and receiving TDD down data - Google Patents
Method and apparatus for sending and receiving TDD down data Download PDFInfo
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- CN101414876B CN101414876B CN200710175947A CN200710175947A CN101414876B CN 101414876 B CN101414876 B CN 101414876B CN 200710175947 A CN200710175947 A CN 200710175947A CN 200710175947 A CN200710175947 A CN 200710175947A CN 101414876 B CN101414876 B CN 101414876B
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Abstract
The invention discloses a method and a device for transmitting and receiving time division duplex downstream data in the communications field, wherein, the transmission method includes the steps: control information is generated and transmitted to a terminal and is used for indicating a source which occupies an HSDPA signal channel at the first downward time slot of a subsequent subframe to send data; and the source which occupies the HSDPA signal channel at the first downward time slot of the subsequent subframe sends the data. The invention realizes the purpose of transmitting the S-CCPCH signal channel source to the HSDPA signal channel, reducing the load of the HSDPA signal channel and balancing the loads of the S-CCPCH signal channel and the HSDPA signal channel.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of sending, receiving method and device of TDD down data.
Background technology
The tradition common down channel has forward access channel (FACH; Forward Access Channel) and PCH (PCH; Paging Channel) etc.; FACH is used for bearer network the user is inserted the response message of request at random, and the small number of users exclusive data also can be carried on the FACH channel, such as short message service; Traditional P CH channel can only bearing call control channel (PCCH; Paging Control Channel) data; Common down channel FACH and PCH shine upon together and are multiplexed on the Secondary Common Control Physical Channel (S-CCPCH, Secondary Common Control Physical Channel).
For making full use of time division duplex (TDD; Time Division Duplex) code channel resource of system, first descending time slot in subframe is to utilize S-CCPCH to send downlink data on the time slot TS0 generally speaking, S-CCPCH indicates physical channel (PICH with paging again usually; Paging Indicator Channel) time division multiplexing is on identical physical code channel resource; When the S-CCPCH Typical Disposition was the code channel of 2 SF=16, the Transmission Time Interval of FACH and PCH (TTI, Transmitting Time Interval) was 20ms; In each TTI; Maximum PCH transmission blocks that the FACH transmission block of one 171 bit arranged respectively or one 80 bit is arranged, the transmission rate of FACH transmission block is equivalent to: 171bit/20ms=8.55kbps, and the transmission rate of PCH transmission block is merely: 80bit/20ms=4kbps.Generally speaking, user accomplishes and intactly inserts or paging needs continuous a plurality of TTI could pass institute's carrier signaling, causes access delay bigger, and under the many situation of the access user of system, the time delay of FACH and PCH will be more obvious.
In order to satisfy growing demand to the HRPD access service; 3GPP Re15 has introduced high speed downlink packet access (HSDPA; High Speed Downlink Packages Access) technology, downlink data can obtain higher user's peak rate and cell data throughput and reduce data transmission delay through the HSDPA channel bearing.
Based on the introducing of HSDPA technology, the channel of corresponding introducing is following:
Transmission channel: high speed descending sharing channel (HS-DSCH; High Speed Downlink SharedChannel); Be used for bearing downlink HSDPA data, be mapped on the high speed down sharing physical channel (HS-PDSCH, High Speed Physical Downlink Shared Channel).A plurality of subscriber equipment (UE; User Equipment) shares this channel through time division multiplexing and code division multiplexing; Adopt link adaptation techniques; Always be attended by a DPCH (DPCH, Dedicated Physical Channel) and one or more downlink high-speed shared control channel (HS-SCCH, Shared Control Channel forHS-DSCH).
Physical channel: high speed down sharing physical channel (HS-PDSCH; High Speed PhysicalDownlink Shared Channel), downlink high-speed shared control channel (HS-SCCH; Shared ControlChannel for HS-DSCH), high-speed shared indication channel (HS-SICH, Shared InformationChannel)
Wherein, the HS-SCCH channel is a HSDPA descending scheduling control channel, takies the code channel of two descending SF=16, adopts fixedly QPSK modulation system.Being used to carry the scheduling control information of HS-DSCH, to the HS-DSCH of each TTI, is that UE carries the relevant descending scheduling control information of HS-DSCH by HS-SCCH all.The HS-SCCH loaded information has: (TFRI, information are indicated HS-DSCH transformat subsequently to transmission format resource combination, comprise the time-slot code channel information of HS-DSCH, the TBS information of modulation system and transmission block; HARQ information comprises the HARQ process number, redundancy versions, new data indication and the HCSN sequence that is used for the HS-SCCH channel quality estimation; The ID sign is used to distinguish the different UEs on the shared channel; HS-SCCH also carries the command word information TPC/SS of uplink synchronous and power control in addition.The channel architecture of HS-SCCH such as following table in the existing protocol.
The information of HSDPA HS-SCCH channel bearing in table 1 existing protocol
HS-SICH is the ascending control channel of HSDPA, takies the code channel of a up SF=16, adopts fixedly QPSK modulation system.Be used for the data block that receives on the HS-DSCH channel is replied (ACK/NACK), and the quality information CQI of feeding back downlink link helps base station scheduling better, in addition the HS-SICH TPC command word of carries downlink also.
As shown in Figure 1; Control procedure sketch map for HSDPA channel timing relationship and HS-SCCH; Downlink data arrives after the NodeB scheduling is sent descending scheduling control information, the HSDPA data of indicating follow-up which UE of HS-DSCH at the HS-SCCH channel earlier; UE understands HS-SCCH channel and the correct transmission block that receives, and utilizes corresponding HS-SICH channel feedback ACK/NACK and CQI information.
Little for solving the common down channel capacity, the problem that time delay is big strengthens FACH and PCH in FDD (FDD, the FrequencyDivision Duplex) system, and basic ideas are following:
Whether support FACH and PCH to strengthen through this sub-district of system message broadcasting indication; Promptly whether support originally being mapped to the data of FACH and PCH then be mapped to HS-DSCH; System message broadcasting strengthens the relevant parameter configuration information of FACH and PCH; Comprise and strengthen the relevant HS-SCCH that FACH and PCH relate to, HS-DSCH channel configuration information and the public H-RNTI that is used to strengthen FACH and PCH addressing;
Terminal receiving system message is also obtained FACH and the relevant HS-DSCH parameter configuration of PCH enhancing; The terminal is selected to monitor traditional FACH and PCH channel or is monitored FACH and the PCH channel that strengthens according to self-ability; If FACH that the user terminal support strengthens and PCH receive, then user terminal is monitored the public H-RNTI on the HS-SCCH;
When UE detected correct public H-RNTI on the HS-SCCH channel, UE forwarded corresponding HS-DSCH to according to timing relationship and goes up the data that receive former FACH of being mapped to and PCH;
If UE has set up the RRC connection and obtained C-RNTI and dedicated H-RNTI, UE uses dedicated H-RNTI to monitor the HS-SCCH channel so.
The common down channel of TDD strengthens; Data map that also can be through will being mapped to FACH and PCH channel is the HS-DSCH channel to the sub-district; Promptly strengthen through FACH of Technique on T DD system such as the high order modulation used on the HS-DSCH channel and PCH channel, the basic thought of its basic thought and FDD system descending CCCH enhanced scheme is similar.Yet; The data map that simply will be mapped to FACH and PCH channel is the HS-DSCH channel to the sub-district; Along with supporting FACH and PCH to strengthen increasing of user in the system, the number of users that traditional F ACH and PCH need support is fewer and feweri, and load will alleviate; Correspondingly more and more users that support to strengthen FACH and PCH are through HSDPA channel reception data; Be equivalent to former FACH and PCH channel load are transferred to sub-district HSDPA channel, can cause the overload on the HSDPA channel, and then influence HSDPA throughput of system and QoS.Be to solve the load balancing problem, the FDD system is through reaching load balancing with the power transfer of the FACH and the physical channel S-CCPCH of PCH mapping to the mode of sub-district HSDPA resource.And what be different from the FDD system is that the S-CCPCH of TDD system is configured on the different time slots with HSDPA, can't reach load balancing through the mode of power transfer.The TDD system descending data that therefore need provide load balancing are sent the scheme of accepting.
Summary of the invention
The present invention provides the sending, receiving method of TDD system descending data, with the load unbalanced problem of S-CCPCH channel and HSDPA interchannel under the solution TDD system.
The present invention provides a kind of TDD down data sending method, comprises step:
Generate control information and transmit to the terminal, said control information is used to indicate and will takies the high-speed downlink packet access channel resource at first descending time slot of subsequent subframe and send data;
First descending time slot in subsequent subframe takies high-speed downlink packet access channel resource transmission data.
At least a mode was carried below said control information was adopted:
Former bit based in the downlink high-speed shared control channel structure carries; Or
Carry based on bit newly-increased in the downlink high-speed shared control channel structure; Or
Carry based on amended bit in the downlink high-speed shared control channel structure; Or
Carry based on high-level signaling; Concrete:
Transmission format resource combination TFRI time slot bit mapped bits is that 0 indication will take high-speed downlink packet access channel resource transmission data at the time slot TS0 of subsequent subframe entirely in the use downlink high-speed shared control channel structure; Perhaps, use 1 bit indication that increase newly in the downlink high-speed shared control channel structure or amended will take the high-speed downlink packet access channel resource and send data at the time slot TS0 of subsequent subframe; Perhaps; Under the situation of high-level signaling indication uplink and downlink time slot position of conversion point after time slot TS2, use the information bit indication that identifies time slot TS2 in the downlink high-speed shared control channel structure in the TFRI time slot bit mapped bits originally will take the high-speed downlink packet access channel resource and send data at the time slot TS0 of subsequent subframe;
The code channel resource information that initial code Start Code in the further use downlink high-speed shared control channel structure and end code Stop Code indication high-speed downlink packet access channel resource take at the time slot TS0 of subsequent subframe; Or use the code channel resource information that increases newly in the downlink high-speed shared control channel structure or amended n bit indicates the high-speed downlink packet access channel resource to take at the time slot TS0 of subsequent subframe, or carry the code channel resource information that indication high-speed downlink packet access channel resource takies at the time slot TS0 of subsequent subframe through high-level signaling.
Said high-speed downlink packet access channel resource comprises:
The downlink high-speed shared control channel resource; Or
The high speed down sharing physical channel resource; Or
Downlink high-speed shared control channel resource and high speed down sharing physical channel resource.
Said high-speed downlink packet access channel resource and Secondary Common Control Physical Channel resource are shared at first descending time slot of subsequent subframe.
Said high-speed downlink packet access channel resource and Secondary Common Control Physical Channel resource take separately independently resource respectively.
The present invention provides a kind of dispensing device of TDD down data, comprising:
The control information generation unit is used to generate indication and will utilizes the high-speed downlink packet access channel resource to send the control information of data at first descending time slot of subsequent subframe;
The control information transmitting element is used for the control information that the control information generation unit generates is sent to the terminal;
Data transmission unit is used for taking high-speed downlink packet access channel resource transmission data at first descending time slot of subsequent subframe;
Said high-speed downlink packet access channel resource and Secondary Common Control Physical Channel resource are shared at first descending time slot of subsequent subframe; Perhaps, said high-speed downlink packet access channel resource and Secondary Common Control Physical Channel resource take separately independently resource respectively;
At least a mode was carried below said control information was adopted: the former bit based in the downlink high-speed shared control channel structure carries; Or based on bit carrying newly-increased in the downlink high-speed shared control channel structure; Or based on amended bit carrying in the downlink high-speed shared control channel structure; Or carry based on high-level signaling; Concrete:
Transmission format resource combination TFRI time slot bit mapped bits is that 0 indication will take high-speed downlink packet access channel resource transmission data at the time slot TS0 of subsequent subframe entirely in the use downlink high-speed shared control channel structure; Perhaps, use 1 bit indication that increase newly in the downlink high-speed shared control channel structure or amended will take the high-speed downlink packet access channel resource and send data at the time slot TS0 of subsequent subframe; Perhaps; Under the situation of high-level signaling indication uplink and downlink time slot position of conversion point after time slot TS2; Use the information bit indication that identifies time slot TS2 in the downlink high-speed shared control channel structure in the TFRI time slot bit mapped bits originally will take the high-speed downlink packet access channel resource and send data at the time slot TS0 of subsequent subframe; The code channel resource information that initial code Start Code in the use downlink high-speed shared control channel structure and end code Stop Code indication high-speed downlink packet access channel resource take at the time slot TS0 of subsequent subframe; Or use the code channel resource information that increases newly in the downlink high-speed shared control channel structure or amended n bit indicates the high-speed downlink packet access channel resource to take at the time slot TS0 of subsequent subframe, or carry the code channel resource information that indication high-speed downlink packet access channel resource takies at the time slot TS0 of subsequent subframe through high-level signaling.
Said control information generation unit specifically comprises:
The scheduling of resource subelement is used for the high-speed downlink packet access channel resource is dispatched at first descending time slot of subframe;
Control information generates subelement, is used for the scheduling based on the scheduling of resource subelement, generates indication and will utilize the high-speed downlink packet access channel resource to send the control information of data at the TS0 of subsequent subframe.
The present invention provides a kind of method of reseptance of TDD down data, comprises step:
The control information that end-on is received is resolved, the indication information of putting down in writing in the controlled information that on the high-speed downlink packet access channel resource of first descending time slot of subsequent subframe, receives data;
On the high-speed downlink packet access channel resource of first descending time slot of subsequent subframe, receive data as indicated;
Said high-speed downlink packet access channel resource and Secondary Common Control Physical Channel resource are shared at first descending time slot of subsequent subframe; Perhaps, said high-speed downlink packet access channel resource and Secondary Common Control Physical Channel resource take separately independently resource respectively.
At least a mode was carried below the said control information that the terminal receives was adopted:
Former bit based in the downlink high-speed shared control channel structure carries; Or
Carry based on bit newly-increased in the downlink high-speed shared control channel structure; Or
Carry based on amended bit in the downlink high-speed shared control channel structure; Or
Carry based on high-level signaling; Concrete:
If transmission format resource combination TFRI time slot bit mapped bits is 0 entirely in the downlink high-speed shared control channel structure, then terminal parses goes out the indication that on the high-speed downlink packet access channel resource of the time slot TS0 of subsequent subframe, receives data; If increase newly in the downlink high-speed shared control channel structure or amended 1 bit is 1 or is 0 that then terminal parses goes out the indication that indication will take high-speed downlink packet access channel resource transmission data at the time slot TS0 of subsequent subframe; If under the situation of high-level signaling indication uplink and downlink time slot position of conversion point after time slot TS2; The information bit that originally identifies time slot TS2 in the downlink high-speed shared control channel structure in the TFRI time slot bit mapped bits is 1 or is 0 that then terminal parses goes out the indication that the time slot TS0 in subsequent subframe is taken high-speed downlink packet access channel resource transmission data;
The terminal further initial code Start Code from the downlink high-speed shared control channel structure and end code Stop Code parses the code channel resource information that the high-speed downlink packet access channel resource takies at the time slot TS0 of subsequent subframe; Perhaps from the downlink high-speed shared control channel structure, increase newly or amended n bit parses the code channel resource information that the high-speed downlink packet access channel resource takies at the time slot TS0 of subsequent subframe, and the time slot TS0 that perhaps parses in subsequent subframe from high-level signaling receives the concrete code channel by high-speed downlink packet access channel data that resource is carried.
Said high-speed downlink packet access channel resource comprises:
The downlink high-speed shared control channel resource; Or
The high speed down sharing physical channel resource; Or
Downlink high-speed shared control channel resource and high speed down sharing physical channel resource.
The present invention provides a kind of receiving system of TDD down data, comprising:
Control information receives resolution unit, is used for receiving control information, and the TS0 that parses in subsequent subframe receives the indication by high-speed downlink packet access channel data that resource is carried;
The Data Receiving unit is used for the indication that parses according to the control information resolution unit, receives the data that high-speed downlink packet access channel resource transmits at first descending time slot of subsequent subframe;
Said high-speed downlink packet access channel resource and Secondary Common Control Physical Channel resource are shared at first descending time slot of subsequent subframe; Perhaps, said high-speed downlink packet access channel resource and Secondary Common Control Physical Channel resource take separately independently resource respectively;
At least a mode was carried below the control information that control information reception resolution unit receives was adopted: the former bit based in the downlink high-speed shared control channel structure carries; Or based on bit carrying newly-increased in the downlink high-speed shared control channel structure; Or based on amended bit carrying in the downlink high-speed shared control channel structure; Or carry based on high-level signaling; Concrete:
If transmission format resource combination TFRI time slot bit mapped bits is 0 entirely in the downlink high-speed shared control channel structure, then terminal parses goes out the indication that on the high-speed downlink packet access channel resource of the time slot TS0 of subsequent subframe, receives data; If increase newly in the downlink high-speed shared control channel structure or amended 1 bit is 1 or is 0 that then terminal parses goes out the indication that indication will take high-speed downlink packet access channel resource transmission data at the time slot TS0 of subsequent subframe; If under the situation of high-level signaling indication uplink and downlink time slot position of conversion point after time slot TS2; The information bit that originally identifies time slot TS2 in the downlink high-speed shared control channel structure in the TFRI time slot bit mapped bits is 1 or is 0 that then terminal parses goes out the indication that the time slot TS0 in subsequent subframe is taken high-speed downlink packet access channel resource transmission data;
Further initial code Start Code from the downlink high-speed shared control channel structure and end code StopCode parse the code channel resource information that the high-speed downlink packet access channel resource takies at the time slot TS0 of subsequent subframe; Perhaps from the downlink high-speed shared control channel structure, increase newly or amended n bit parses the code channel resource information that the high-speed downlink packet access channel resource takies at the time slot TS0 of subsequent subframe, and the time slot TS0 that perhaps parses in subsequent subframe from high-level signaling receives the concrete code channel by high-speed downlink packet access channel data that resource is carried.
Said control information receives resolution unit and specifically comprises:
Control information receives subelement, is used for receiving control information;
Subelement is resolved in control information, is used for receiving the indication by high-speed downlink packet access channel data that resource is carried based on first descending time slot that the control information that control information reception subelement receives parses in subsequent subframe.
Beneficial effect of the present invention: the present invention is that TS0 takies HSDPA channel resource transmission downlink data through first descending time slot in subframe; When will be originally shifting to the HSDPA channel by the data of S-CCPCH channel bearing; Realized the S-CCPCH channel resource is shifted the channel to HSDPA; Alleviate the HSDPA channel load, made the load of S-CCPCH channel and HSDPA channel reach balanced.
Description of drawings
Fig. 1 is the control procedure sketch map of prior art HSDPA channel timing relationship and HS-SCCH;
Fig. 2 is the sending method flow chart of a kind of downlink data provided by the invention;
Fig. 3 is the dispensing device structure chart of a kind of downlink data provided by the invention;
Fig. 4 is the method for reseptance flow chart of a kind of downlink data provided by the invention;
Fig. 5 is the receiving system structure chart of a kind of downlink data provided by the invention.
Embodiment
The present invention is that TS0 takies HSDPA channel resource transmission downlink data through first descending time slot in subframe; When will be originally shifting to the HSDPA channel by the data of S-CCPCH channel bearing; Realized the S-CCPCH channel resource is shifted the channel to HSDPA; Thereby alleviated the HSDPA channel load, made the load of S-CCPCH channel and HSDPA channel reach balanced.
As shown in Figure 2, the sending method flow chart for a kind of TDD down data provided by the invention comprises step:
S110: generate control information and transmit to the terminal, said control information is used to indicate and will utilizes the high-speed downlink packet access channel resource to send data at the TS0 of subsequent subframe;
Wherein, control information is based on generating the scheduling of HSDPA channel resource, has following several kinds in the mode of the TS0 of subframe scheduling HSDPA channel resource:
Mode one: HSDPA channel resource and S-CCPCH resource are shared at the TS0 of subframe, and detecting decision current shared resource by the base station still is the S-CCPCH resource as the HSDPA channel resource.When base station decision current shared resource is used as the HSDPA channel resource, then generates the control information indication and utilize this HSDPA channel resource to send data at the TS0 of follow-up subframe.This mode can realize the transfer of the channel resource of S-CCPCH to the HSDPA channel through shared resource;
Mode two: make HSDPA channel resource and S-CCPCH resource take separately independently resource respectively.This kind mode specifically is divided into again:
Make HSDPA channel resource and S-CCPCH resource utilize resource separately to send data at the TS0 of subframe respectively, two kinds of resources are not shared;
The S-CCPCH that takies TS0 time-slot code channel resource generally speaking is assigned on the time-slot code channel beyond the time slot TS0, will originally takies TS0 time-slot code channel resource allocation HSDPA channel by S-CCPCH.This mode has realized the transfer of the channel resource of S-CCPCH to the HSDPA channel through changing efficient higher H SDPA channel resource with the lower S-CCPCH resource of efficient.
Wherein, At least a mode was carried below the control information that transmits to the terminal was adopted: the former bit based in the downlink high-speed shared control channel structure carries; Perhaps carry based on bit newly-increased in the downlink high-speed shared control channel structure; Perhaps carry, perhaps carry based on high-level signaling based on amended bit in the downlink high-speed shared control channel structure.TFRI time slot bit mapped bits is that 0 indication will take HSDPA channel resource transmission data at the TS0 of subsequent subframe entirely in the HS-SCCH channel architecture such as using; Can also will take the HSDPA channel resource at the TS0 of subsequent subframe with 1 bit indication that increase newly in the HS-SCCH channel architecture or amended and send data; Can also indicate under the situation of uplink and downlink time slot position of conversion point after time slot TS2 at high-level signaling, will take the HSDPA channel resource at the TS0 of subsequent subframe with the information bit indication that originally identifies time slot TS2 in the TFRI time slot bit mapped bits in the HS-SCCH channel architecture and send data; The code channel resource information that can take at the TS0 of subsequent subframe with the Start Code in the HS-SCCH channel architecture and StopCode indication HSDPA channel resource; Also can also carry the code channel resource information that indication HSDPA channel resource takies at the TS0 of subsequent subframe through high-level signaling with the code channel resource information that increases newly in the HS-SCCH channel architecture or amended n bit indicates the HSDPA channel resource to take at the TS0 of subsequent subframe.
In addition, said downlink packet access channel resource is: downlink high-speed shared control channel resource, perhaps high speed down sharing physical channel resource, perhaps downlink high-speed shared control channel resource and high speed down sharing physical channel resource.
S120: first descending time slot in subsequent subframe takies high-speed downlink packet access channel resource transmission data.
As shown in Figure 3, the dispensing device structure chart for a kind of TDD down data provided by the invention comprises:
Control information generation unit 110 is used to generate indication and will utilizes the high-speed downlink packet access channel resource to send the control information of data at the TS0 of subsequent subframe;
Control information transmitting element 120 is used for the control information that control information generation unit 110 generates is sent to the terminal;
Wherein, control information generation unit 110 bodies comprise:
Scheduling of resource subelement 1101 is used for the high-speed downlink packet access channel resource is dispatched at first descending time slot of subframe;
Control information generates subelement 1102, is used for the scheduling based on scheduling of resource subelement 1101, generates indication and will utilize the high-speed downlink packet access channel resource to send the control information of data at the TS0 of subsequent subframe.
As shown in Figure 4, be a kind of load balancing method of reseptance flow chart that strengthens based on the TDD down common signal channel provided by the invention, comprise step:
S210: the control information that terminal parses receives, the TS0 that draws in subsequent subframe receives the indication information by high-speed downlink packet access channel data that resource is carried; Wherein, The control information that the terminal receives adopts at least a mode to carry: the former bit based in the downlink high-speed shared control channel structure carries; Perhaps carry based on bit newly-increased in the downlink high-speed shared control channel structure; Perhaps carry, perhaps carry based on high-level signaling based on amended bit in the downlink high-speed shared control channel structure.Such as: if TFRI time slot bit mapped bits is 0 entirely in the HS-SCCH channel architecture; Then terminal parses goes out the indication that on the HSDPA channel resource of the TS0 of subsequent subframe, receives data; If increase newly in the HS-SCCH channel architecture or amended 1 bit is 1 (or being 0); Then terminal parses goes out to indicate to take at the TS0 of subsequent subframe HSDPA channel resource transmission data; If under the situation of high-level signaling indication uplink and downlink time slot position of conversion point after time slot TS2; The information bit that originally identifies time slot TS2 in the HS-SCCH channel architecture in the TFRI time slot bit mapped bits is 1 (or being 0), and then terminal parses goes out to indicate to take at the TS0 of subsequent subframe HSDPA channel resource transmission data; Start Code from the HS-SCCH channel architecture and Stop Code parse the code channel resource information that the HSDPA channel resource takies at the TS0 of subsequent subframe for another example; Perhaps from the HS-SCCH channel architecture, increase newly or amended n bit parses the code channel resource information that the HSDPA channel resource takies at the TS0 of subsequent subframe, and the TS0 that perhaps parses in subsequent subframe from high-level signaling receives the concrete code channel by high-speed downlink packet access channel data that resource is carried.
S220: first descending time slot in subsequent subframe receives the data that the high-speed downlink packet access channel resource transmits as indicated;
As shown in Figure 5, the receiving system structure chart for a kind of TDD down data provided by the invention comprises:
Control information receives resolution unit 210, is used to resolve the control information of reception, and the TS0 that draws in subsequent subframe receives the Indication message by high-speed downlink packet access channel data that resource is carried;
Wherein, control information reception resolution unit 210 specifically comprises:
Control information receives subelement 2101, is used for receiving control information;
With regard to a kind of TDD down data sending method provided by the invention and method of reseptance, be elaborated below with embodiment.
Embodiment one,
Utilize a kind of TDD down data sending method provided by the invention, the step of sending data comprises:
S1100:HSDPA channel resource and S-CCPCH resource are shared at the TS0 of subframe; Detecting decision current shared resource by the base station still is the S-CCPCH resource as the HSDPA channel resource; When base station decision current shared resource is used as the HSDPA channel resource; Then generate the control information indication and utilize this HSDPA channel resource to send data, and the control information that generates is sent to the terminal at the TS0 of follow-up subframe.Wherein, It is that 0 indication will take the HSDPA channel resource at the TS0 of subsequent subframe and send data entirely that said control information utilizes in the HS-SCCH channel architecture TFRI time slot bit mapped bits, the code channel resource information of utilizing Start Code and Stop Code in the HS-SCCH channel architecture to indicate the HSDPA channel resource to take at the TS0 of subsequent subframe.In addition, said HSDPA channel resource is: downlink high-speed shared control channel resource, perhaps high speed down sharing physical channel resource, perhaps downlink high-speed shared control channel resource and high speed down sharing physical channel resource.
S1200: take the HSDPA channel resource at the TS0 of subsequent subframe and send data.Wherein, the indicated HSDPA channel resource of the code channel that on the TS0 of subsequent subframe, takies of HSDPA channel resource and control letter information is consistent at the code channel that the TS0 of subsequent subframe takies.
Accordingly, utilize a kind of TDD down data method of reseptance provided by the invention, the step that receives data comprises:
S2100: the terminal receives the control information of being carried by the bit in the former HS-SCCH channel architecture; Receive the indication by high-speed downlink packet access channel resource institute carrying data by 0 TS0 that parses in subsequent subframe entirely by TFRI time slot bit mapped bits in the HS-SCCH channel architecture, the TS0 reception that is parsed in subsequent subframe by Start Code in the HS-SCCH channel architecture and Stop Code is by the concrete code channel of high-speed downlink packet access channel data that resource is carried.In addition, said HSDPA channel resource is: downlink high-speed shared control channel resource, perhaps high speed down sharing physical channel resource, perhaps downlink high-speed shared control channel resource and high speed down sharing physical channel resource.
S2200: the terminal receives the data that the HSDPA channel resource transmits according to the indication that parses on the corresponding code channel of the TS0 of subsequent subframe;
In the present embodiment; When sending data in step 1100; Said control information can also utilize 1 bit indication that increase newly in the HS-SCCH channel architecture or amended will take the HSDPA channel resource at the TS0 of subsequent subframe and send data, the code channel resource information of utilizing n bit indication HSDPA channel resource that increase newly in the HS-SCCH channel architecture or amended to take at the TS0 of subsequent subframe.
Accordingly; When receiving data in step 2100; The terminal receive by increase newly or amended HS-SCCH channel architecture in the bit control information of carrying; By increase newly in the HS-SCCH channel architecture or amended 1 bit be that the TS0 that parses in subsequent subframe of 1 (or being 0) receives the indication by high-speed downlink packet access channel resource institute carryings data, the TS0 reception that is parsed in subsequent subframe by the perhaps amended n bit that increases newly in the HS-SCCH channel architecture is by the concrete code channel of high-speed downlink packet access channel data that resource is carried.
In addition; In the present embodiment; In step 1100, can also make HSDPA channel resource and S-CCPCH resource take separately independently resource respectively when sending data: make HSDPA channel resource and S-CCPCH resource utilize resource separately to send data at TS0 respectively, two kinds of resources are not shared; The S-CCPCH that perhaps will take TS0 time-slot code channel resource generally speaking is assigned on the time-slot code channel beyond the time slot TS0; To originally take TS0 time-slot code channel resource allocation HSDPA channel by S-CCPCH; This mode has realized the transfer of the channel resource of S-CCPCH to the HSDPA channel through changing efficient higher H SDPA channel resource with the lower S-CCPCH resource of efficient.
Embodiment two,
Utilize a kind of TDD down data sending method provided by the invention, the step of sending data comprises:
S3100: make HSDPA channel resource and S-CCPCH resource utilize resource separately to send data at the TS0 of subframe respectively, two kinds of resources are not shared; Perhaps make the S-CCPCH resource on the time slot beyond the time slot TS0 of subframe, send data, make the HSDPA channel resource send data at the time slot TS0 of subframe., generate the control information indication and utilize the HSDPA channel resource to send data, and the control information that generates is sent to the terminal the scheduling situation of HSDPA channel resource based on above-mentioned at the TS0 of follow-up subframe at the TS0 of subframe.Wherein, The mode that said control information utilizes high-level signaling to combine with bit in the HS-SCCH channel architecture is carried: high-level signaling carries and sends the message of uplink and downlink time slot position of conversion point after time slot TS2; Indication utilizes the information bit indication that identifies time slot TS2 in the HS-SCCH channel architecture in the TFRI time slot bit mapped bits originally will take the HSDPA channel resource at the TS0 of subsequent subframe and sends data; In addition, the code channel resource information of utilizing high-level signaling indication HSDPA channel resource to take at the TS0 of subsequent subframe.In addition, said HSDPA channel resource is: downlink high-speed shared control channel resource, perhaps high speed down sharing physical channel resource, perhaps downlink high-speed shared control channel resource and high speed down sharing physical channel resource.
S3200: take the HSDPA channel resource at the TS0 of subsequent subframe and send data.Wherein, the indicated HSDPA channel resource of the code channel that on the TS0 of subsequent subframe, takies of HSDPA channel resource and control letter information is consistent at the code channel that the TS0 of subsequent subframe takies.
Accordingly, utilize a kind of TDD down data method of reseptance provided by the invention, the step that receives data comprises:
S4100: terminal receiving control information; Comprise high-level signaling and HS-SCCH channel architecture loaded information; Wherein the terminal parses the indication of uplink and downlink time slot position of conversion point after time slot TS2 from the high-level signaling that receives; Then the information bit that identifies time slot TS2 in the TFRI time slot bit mapped bits in the HS-SCCH channel architecture is originally resolved in this indication of terminal; If identifying the information bit of time slot TS2 in the TFRI time slot bit mapped bits in the HS-SCCH channel architecture originally is 1 (or being 0), the TS0 that then indicates in subsequent subframe receives by high-speed downlink packet access channel data that resource is carried.In addition, the terminal receives the concrete code channel by high-speed downlink packet access channel data that resource is carried from the TS0 that the high-level signaling that receives parses subsequent subframe.In addition, said HSDPA channel resource is: downlink high-speed shared control channel resource, perhaps high speed down sharing physical channel resource, perhaps downlink high-speed shared control channel resource and high speed down sharing physical channel resource.
S4200: the terminal receives the data that the HSDPA channel resource transmits according to the indication that parses on the corresponding code channel of the TS0 of subsequent subframe.
Embodiment three
Utilize a kind of TDD down data sending method provided by the invention, the step of sending data comprises:
S5100: make the S-CCPCH resource on the time slot beyond the descending time slot TS0 of subframe, send data, make the HSDPA channel resource send data at the descending time slot TS0 of subframe; Based on above-mentioned to the scheduling situation of HSDPA channel resource at the descending time slot TS0 of subframe; Generate the control information indication and utilize the HSDPA channel resource to send data, and the control information that generates is sent to the terminal at the TS0 of follow-up subframe.Wherein, The mode that said control information utilizes high-level signaling to combine with bit in the HS-SCCH channel architecture is carried: utilize 1 bit indication that increase newly in the HS-SCCH channel architecture or amended will take the HSDPA channel resource at the TS0 of subsequent subframe and send data, the code channel resource information of utilizing high-level signaling indication HSDPA channel resource to take at the TS0 of follow-up subframe.
In addition, said HSDPA channel resource is: downlink high-speed shared control channel resource, perhaps high speed down sharing physical channel resource, perhaps downlink high-speed shared control channel resource and high speed down sharing physical channel resource.
S5200: take the HSDPA channel resource at the TS0 of subsequent subframe and send data.Wherein, the indicated HSDPA channel resource of the code channel that on the TS0 of subsequent subframe, takies of HSDPA channel resource and control letter information is consistent at the code channel that the TS0 of subsequent subframe takies.
Accordingly, utilize a kind of TDD down data method of reseptance provided by the invention, the step that receives data comprises:
S6100: the terminal receives the control information that is combined with high-level signaling and carried by the bit in the HS-SCCH channel architecture; By increase newly in the HS-SCCH channel architecture or amended 1 bit be that the TS0 that parses in subsequent subframe of 1 (or being 0) receives the indication by high-speed downlink packet access channel resource institute carrying data, the TS0 reception that is parsed in subsequent subframe by high-level signaling is by the concrete code channel of high-speed downlink packet access channel data that resource is carried.
S6200: the terminal receives the data that the HSDPA channel resource transmits according to the indication that parses on the corresponding code channel of the TS0 of subsequent subframe.
In present embodiment step 5100; For the first time before downlink data is sent at the terminal; The code channel resource information that can utilize high-level signaling indication HSDPA channel resource to take at subframe TS0; Send downlink data, the code channel resource information that control information can no longer indicate the HSDPA channel resource to take at follow-up subframe TS0 to the terminal more later on.In step 5200, when the TS0 of subsequent subframe took the HSDPA channel resource and sends data, the indicated HSDPA channel resource of code channel that the HSDPA channel resource takies on the TS0 of subsequent subframe and high-level signaling was consistent at the code channel that the TS0 of subframe takies.
Accordingly; When receiving data in step 6100; The terminal receives high-level signaling first; And the TS0 that parses in subframe receives the concrete code channel by high-speed downlink packet access channel data that resource is carried; The terminal can be stored this information, after the TS0 that receives afterwards in subsequent subframe receives the indication by high-speed downlink packet access channel data that resource is carried, on the code channel that the TS0 of subsequent subframe directly writes down to the concrete code channel information of storing, receives and is got final product by high-speed downlink packet access channel data that resource is carried.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, belong within the scope of claim of the present invention and equivalent technologies thereof if of the present invention these are revised with modification, then the present invention also is intended to comprise these changes and modification interior.
Claims (8)
1. a TDD down data sending method is characterized in that, comprises step:
Generate control information and transmit to the terminal, said control information is used to indicate and will takies the high-speed downlink packet access channel resource at first descending time slot of subsequent subframe and send data;
First descending time slot in subsequent subframe takies high-speed downlink packet access channel resource transmission data;
Said high-speed downlink packet access channel resource and Secondary Common Control Physical Channel resource are shared at first descending time slot of subsequent subframe; Perhaps, said high-speed downlink packet access channel resource and Secondary Common Control Physical Channel resource take separately independently resource respectively;
At least a mode was carried below said control information was adopted:
Former bit based in the downlink high-speed shared control channel structure carries; Or based on bit carrying newly-increased in the downlink high-speed shared control channel structure; Or based on amended bit carrying in the downlink high-speed shared control channel structure; Or carry based on high-level signaling; Concrete:
Transmission format resource combination TFRI time slot bit mapped bits is that 0 indication will take high-speed downlink packet access channel resource transmission data at the time slot TS0 of subsequent subframe entirely in the use downlink high-speed shared control channel structure; Perhaps, use 1 bit indication that increase newly in the downlink high-speed shared control channel structure or amended will take the high-speed downlink packet access channel resource and send data at the time slot TS0 of subsequent subframe; Perhaps; Under the situation of high-level signaling indication uplink and downlink time slot position of conversion point after time slot TS2, use the information bit indication that identifies time slot TS2 in the downlink high-speed shared control channel structure in the TFRI time slot bit mapped bits originally will take the high-speed downlink packet access channel resource and send data at the time slot TS0 of subsequent subframe;
The code channel resource information that initial code Start Code in the further use downlink high-speed shared control channel structure and end code Stop Code indication high-speed downlink packet access channel resource take at the time slot TS0 of subsequent subframe; Or use the code channel resource information that increases newly in the downlink high-speed shared control channel structure or amended n bit indicates the high-speed downlink packet access channel resource to take at the time slot TS0 of subsequent subframe, or carry the code channel resource information that indication high-speed downlink packet access channel resource takies at the time slot TS0 of subsequent subframe through high-level signaling.
2. the method for claim 1 is characterized in that, said high-speed downlink packet access channel resource comprises:
The downlink high-speed shared control channel resource; Or
The high speed down sharing physical channel resource; Or
Downlink high-speed shared control channel resource and high speed down sharing physical channel resource.
3. the dispensing device of a TDD down data is characterized in that, comprising:
The control information generation unit is used to generate indication and will utilizes the high-speed downlink packet access channel resource to send the control information of data at first descending time slot of subsequent subframe;
The control information transmitting element is used for the control information that the control information generation unit generates is sent to the terminal;
Data transmission unit is used for taking high-speed downlink packet access channel resource transmission data at first descending time slot of subsequent subframe;
Said high-speed downlink packet access channel resource and Secondary Common Control Physical Channel resource are shared at first descending time slot of subsequent subframe; Perhaps, said high-speed downlink packet access channel resource and Secondary Common Control Physical Channel resource take separately independently resource respectively;
At least a mode was carried below said control information was adopted: the former bit based in the downlink high-speed shared control channel structure carries; Or based on bit carrying newly-increased in the downlink high-speed shared control channel structure; Or based on amended bit carrying in the downlink high-speed shared control channel structure; Or carry based on high-level signaling; Concrete:
Transmission format resource combination TFRI time slot bit mapped bits is that 0 indication will take high-speed downlink packet access channel resource transmission data at the time slot TS0 of subsequent subframe entirely in the use downlink high-speed shared control channel structure; Perhaps, use 1 bit indication that increase newly in the downlink high-speed shared control channel structure or amended will take the high-speed downlink packet access channel resource and send data at the time slot TS0 of subsequent subframe; Perhaps; Under the situation of high-level signaling indication uplink and downlink time slot position of conversion point after time slot TS2; Use the information bit indication that identifies time slot TS2 in the downlink high-speed shared control channel structure in the TFRI time slot bit mapped bits originally will take the high-speed downlink packet access channel resource and send data at the time slot TS0 of subsequent subframe; The code channel resource information that initial code Start Code in the use downlink high-speed shared control channel structure and end code Stop Code indication high-speed downlink packet access channel resource take at the time slot TS0 of subsequent subframe; Or use the code channel resource information that increases newly in the downlink high-speed shared control channel structure or amended n bit indicates the high-speed downlink packet access channel resource to take at the time slot TS0 of subsequent subframe, or carry the code channel resource information that indication high-speed downlink packet access channel resource takies at the time slot TS0 of subsequent subframe through high-level signaling.
4. dispensing device as claimed in claim 3 is characterized in that, said control information generation unit specifically comprises:
The scheduling of resource subelement is used for the high-speed downlink packet access channel resource is dispatched at first descending time slot of subframe;
Control information generates subelement, is used for the scheduling based on the scheduling of resource subelement, generates indication and will utilize the high-speed downlink packet access channel resource to send the control information of data at the TS0 of subsequent subframe.
5. the method for reseptance of a TDD down data is characterized in that, comprises step:
The control information that end-on is received is resolved, the indication information of putting down in writing in the controlled information that on the high-speed downlink packet access channel resource of first descending time slot of subsequent subframe, receives data;
On the high-speed downlink packet access channel resource of first descending time slot of subsequent subframe, receive data as indicated;
Said high-speed downlink packet access channel resource and Secondary Common Control Physical Channel resource are shared at first descending time slot of subsequent subframe; Perhaps, said high-speed downlink packet access channel resource and Secondary Common Control Physical Channel resource take separately independently resource respectively;
At least a mode was carried below the control information that the terminal receives was adopted: the former bit based in the downlink high-speed shared control channel structure carries; Or based on bit carrying newly-increased in the downlink high-speed shared control channel structure; Or based on amended bit carrying in the downlink high-speed shared control channel structure; Or carry based on high-level signaling; Concrete:
If transmission format resource combination TFRI time slot bit mapped bits is 0 entirely in the downlink high-speed shared control channel structure, then terminal parses goes out the indication that on the high-speed downlink packet access channel resource of the time slot TS0 of subsequent subframe, receives data; If increase newly in the downlink high-speed shared control channel structure or amended 1 bit is 1 or is 0 that then terminal parses goes out the indication that indication will take high-speed downlink packet access channel resource transmission data at the time slot TS0 of subsequent subframe; If under the situation of high-level signaling indication uplink and downlink time slot position of conversion point after time slot TS2; The information bit that originally identifies time slot TS2 in the downlink high-speed shared control channel structure in the TFRI time slot bit mapped bits is 1 or is 0 that then terminal parses goes out the indication that the time slot TS0 in subsequent subframe is taken high-speed downlink packet access channel resource transmission data;
The terminal further initial code Start Code from the downlink high-speed shared control channel structure and end code Stop Code parses the code channel resource information that the high-speed downlink packet access channel resource takies at the time slot TS0 of subsequent subframe; Perhaps from the downlink high-speed shared control channel structure, increase newly or amended n bit parses the code channel resource information that the high-speed downlink packet access channel resource takies at the time slot TS0 of subsequent subframe, and the time slot TS0 that perhaps parses in subsequent subframe from high-level signaling receives the concrete code channel by high-speed downlink packet access channel data that resource is carried.
6. method as claimed in claim 5 is characterized in that, said high-speed downlink packet access channel resource comprises:
The downlink high-speed shared control channel resource; Or
The high speed down sharing physical channel resource; Or
Downlink high-speed shared control channel resource and high speed down sharing physical channel resource.
7. the receiving system of a TDD down data is characterized in that, comprising:
Control information receives resolution unit, is used for receiving control information, and first descending time slot that parses in subsequent subframe receives the indication by high-speed downlink packet access channel data that resource is carried;
The Data Receiving unit is used for the indication that parses according to the control information resolution unit, receives the data that high-speed downlink packet access channel resource transmits at first descending time slot of subsequent subframe;
Said high-speed downlink packet access channel resource and Secondary Common Control Physical Channel resource are shared at first descending time slot of subsequent subframe; Perhaps, said high-speed downlink packet access channel resource and Secondary Common Control Physical Channel resource take separately independently resource respectively;
At least a mode was carried below the control information that control information reception resolution unit receives was adopted: the former bit based in the downlink high-speed shared control channel structure carries; Or based on bit carrying newly-increased in the downlink high-speed shared control channel structure; Or based on amended bit carrying in the downlink high-speed shared control channel structure; Or carry based on high-level signaling; Concrete:
If transmission format resource combination TFRI time slot bit mapped bits is 0 entirely in the downlink high-speed shared control channel structure, then terminal parses goes out the indication that on the high-speed downlink packet access channel resource of the time slot TS0 of subsequent subframe, receives data; If increase newly in the downlink high-speed shared control channel structure or amended 1 bit is 1 or is 0 that then terminal parses goes out the indication that indication will take high-speed downlink packet access channel resource transmission data at the time slot TS0 of subsequent subframe; If under the situation of high-level signaling indication uplink and downlink time slot position of conversion point after time slot TS2; The information bit that originally identifies time slot TS2 in the downlink high-speed shared control channel structure in the TFRI time slot bit mapped bits is 1 or is 0 that then terminal parses goes out the indication that the time slot TS0 in subsequent subframe is taken high-speed downlink packet access channel resource transmission data;
Further initial code Start Code from the downlink high-speed shared control channel structure and end code Stop Code parse the code channel resource information that the high-speed downlink packet access channel resource takies at the time slot TS0 of subsequent subframe; Perhaps from the downlink high-speed shared control channel structure, increase newly or amended n bit parses the code channel resource information that the high-speed downlink packet access channel resource takies at the time slot TS0 of subsequent subframe, and the time slot TS0 that perhaps parses in subsequent subframe from high-level signaling receives the concrete code channel by high-speed downlink packet access channel data that resource is carried.
8. receiving system as claimed in claim 7 is characterized in that, said control information receives resolution unit and specifically comprises:
Control information receives subelement, is used for receiving control information;
Subelement is resolved in control information, is used for receiving the indication by high-speed downlink packet access channel data that resource is carried based on first descending time slot that the control information that control information reception subelement receives parses in subsequent subframe.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200710175947A CN101414876B (en) | 2007-10-16 | 2007-10-16 | Method and apparatus for sending and receiving TDD down data |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200710175947A CN101414876B (en) | 2007-10-16 | 2007-10-16 | Method and apparatus for sending and receiving TDD down data |
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| CN101414876B true CN101414876B (en) | 2012-10-03 |
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| CN103517421B (en) * | 2012-06-15 | 2017-06-27 | 华为技术有限公司 | Transfer control method and relevant apparatus and communication system |
| EP3332490A4 (en) * | 2015-08-07 | 2019-03-27 | Newracom, Inc. | Control information for multi-user transmissions in wlan systems |
| CN107820318A (en) * | 2016-09-10 | 2018-03-20 | 北京信威通信技术股份有限公司 | A kind of method and device for sending information |
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| CN1411185A (en) * | 2001-09-27 | 2003-04-16 | 华为技术有限公司 | Method of dynamic allocation shared control channel |
| CN1658541A (en) * | 2004-02-17 | 2005-08-24 | 大唐移动通信设备有限公司 | Data transmission method based on high-speed down packet access |
| CN1893344A (en) * | 2005-07-04 | 2007-01-10 | 上海原动力通信科技有限公司 | Multi-carrier-wave communication system TSO time-slot resource distribution method and grouped data transmission method |
| CN101043718A (en) * | 2006-03-24 | 2007-09-26 | 大唐移动通信设备有限公司 | Method for performing paging using downlink sharing physical channel |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1411185A (en) * | 2001-09-27 | 2003-04-16 | 华为技术有限公司 | Method of dynamic allocation shared control channel |
| CN1658541A (en) * | 2004-02-17 | 2005-08-24 | 大唐移动通信设备有限公司 | Data transmission method based on high-speed down packet access |
| CN1893344A (en) * | 2005-07-04 | 2007-01-10 | 上海原动力通信科技有限公司 | Multi-carrier-wave communication system TSO time-slot resource distribution method and grouped data transmission method |
| CN101043718A (en) * | 2006-03-24 | 2007-09-26 | 大唐移动通信设备有限公司 | Method for performing paging using downlink sharing physical channel |
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