CN101409608A - Transmission method for mixed automatic re-transmission request - Google Patents
Transmission method for mixed automatic re-transmission request Download PDFInfo
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Abstract
The invention provides a transmission method of hybrid automatic repeat retransmission request, comprising the following steps: step 1, a radio network controller distributes transmission channels in advance; and step 2, in the continuous retransmission process of grouped data, when a base station assigns scheduling information to ascending grouped users who are dispatched and selected, the base station selects one of the transmission channels according to the scheduled scheduling strategy to send response indicating message and answer indicating message of the hybrid automatic repeat retransmission request. Therefore, by adopting the method, the accuracy and the flexibility of the signaling transmission can be improved, and the receiving situation of the up stroke process can be exactly sent back to the user, thus increasing the capacity of system.
Description
Technical field
The present invention relates to field of wireless communication, more specifically, relate to a kind of transmission method that mixes automatic repeat requests.
Background technology
The further evolution of HSPA and enhancing (claiming HSPA+ again) are that 3GPP RAN started a new research project in 2006, and purpose is to reach the spectrum efficiency the same with LTE in 5MHz.The major technique feature of HSPA+ has: and the continuous transmission of MIMO, grouped data (Continuous Connectivity for Packet Data Users, CPC) and high order modulation etc.
Though technology can greatly promote user's transmission rate, potential transmission is interrupted, frequent connection termination and the QoS mechanism that can not guarantee such as reconnect and also allow it lose chance with fixed broadband network (as DSL) competition with the HSDPA/HSUPA (access of high speed downlink packet access/high speed uplink packet) that is grouped into guiding.CPC just is being based on this and the solution that proposes.CPC has increased the packet data user that is in cell private channel (CELL_DCH) state, prolonged the time that the user is in the CELL_DCH state, reduce the data user and forwarded switching time of activated state from temporary transient non-activated state to, prevent that frequent disconnection is connected with rebuilding, to avoid unnecessary spending and delay, prolonged the service time of battery of mobile phone.
In the CPC technology, the synchronous and power control of up link no longer needs descending following special physical channel, and (dedicated physical channel DPCH), but is provided by the HICH channel fully.High-level signaling is that subscriber equipment (User Equipment is called for short UE) selects the HICH channel to provide power control and synchronous for up channel, wherein, mixes the independent transmission bearer of automatic repeat requests (HARQ) response indication needs.Thereby prior art can reduce the accuracy and the flexibility of signaling transmission, and can not reduce power system capacity to the reception situation of the up process of user's accurate response.
Summary of the invention
In order to solve the problems of the prior art, the invention provides a kind of transmission method that mixes automatic repeat requests, the channel data feedback scheme and the structure of time slot that are used for the CPC technology carrying HARQ response indication signaling of TD-SCDMA, thereby improve the accuracy and the flexibility of signaling transmission, and rationally feed back to the user uplink process and receive situation, improve power system capacity.
The invention provides a kind of transmission method that mixes automatic repeat requests, it may further comprise the steps: step 1, and radio network controller is allocated transmission channel in advance; And step 2, in the continuous retransmission processes of grouped data, when the upstream packet user who chooses to scheduling when the base station issued schedule information, the base station selected a transmission channel in the transmission channel to send the response instructions information of mixing automatic repeat requests and reply indication information according to predetermined scheduling strategy.
Wherein, transmission channel comprises: the aggregate channel of the compression channel of the compression channel of access grant channel, access grant channel, High-Speed Shared Control Channel, High-Speed Shared Control Channel and above-mentioned any two transmission channels.Replying indication information comprises receiving and replys indication information and negative response indication information.
In step 2, also carry out following the processing: when the upstream packet user who chooses to scheduling when the base station issued schedule information, the enhancing uplink physical channel of whether receiving other between last enhancing uplink physical channel of once receiving and selected transmission channel was judged in the base station.
Wherein, when not receiving other enhancing uplink physical channel between enhancing uplink physical channel of receiving when the last time and the selected transmission channel, automatic repeat requests response instructions information is returned in the base station.
And when receiving other enhancing uplink physical channel between last enhancing uplink physical channel of receiving and the selected transmission channel, carry out following the processing in step 2: if the base station all is to receive to reply indication information to the indication information of replying of all the enhancing uplink physical channels received before selected transmission channel, then indication information is replied in the base station reception of returning the automatic repeat requests of mixing of the last time.
Alternatively, when the base station to all the enhancing uplink physical channels received before selected transmission channel reply indication information when comprising the negative response indication information, the base station is returned farthest the negative response indication information of the automatic repeat requests of mixing once or is returned a predetermined negative response indication information that mixes automatic repeat requests.
Sending response instructions information of mixing automatic repeat requests and the mode of replying indication information by selected transmission channel is: increase by two indication territories in selected transmission channel, comprise: mix the process identification (PID) territory of automatic repeat requests and reply the indication information identification field, wherein, the process identification (PID) domain representation that mixes automatic repeat requests mixes the process number of automatic repeat requests, and replys the indication information identification field and represent that the process of mixing automatic repeat requests receives situation.
Thereby, can improve the accuracy and the flexibility of personality transmission by the transmission method of the automatic repeat requests of mixing of the present invention, and up process reception situation can be fed back to the user exactly, thereby improve power system capacity.
Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, perhaps understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the specification of being write, claims and accompanying drawing.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used from explanation the present invention with embodiments of the invention one, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the flow chart according to the transmission method of the automatic repeat requests of mixing of the present invention;
Fig. 2 is the structural representation that does not increase HARQ response enhancing absolute grant channel (E-AGCH) before;
Fig. 3 increases the structural representation that the E-AGCH channel in resource continuous indication (RDI) territory is arranged after HARQ responds;
Fig. 4 increases the structural representation that does not have the E-AGCH channel in RDI territory after HARQ responds;
Fig. 5 is the structural representation that does not increase the compression channel (E-AGCH_less) of HARQ response enhancing absolute grant channel before;
Fig. 6 is the structural representation that increases the E-AGCH_less channel after HARQ responds;
Fig. 7 is the structural representation that does not increase HARQ response High-Speed Shared Control Channel (HS-SCCH) before;
Fig. 8 is the structural representation that increases the HS-SCCH channel after HARQ responds;
Fig. 9 is the structural representation that does not increase the compression channel (HS-SCCH_less) of HARQ response High-Speed Shared Control Channel before;
Figure 10 is the structural representation that increases the HS-SCCH_less channel after HARQ responds;
Figure 11 does not increase the structural representation that HARQ responds the aggregate channel of E-AGCH before and HS-SCCH;
Figure 12 is the structural representation that increases the aggregate channel of E-AGCH after the HARQ response and HS-SCCH;
Figure 13 does not increase the structural representation that HARQ responds the aggregate channel of E-AGCH_less before and HS-SCCH_less; And
Figure 14 is the structural representation that increases the aggregate channel of E-AGCH_less after the HARQ response and HS-SCCH_less.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the present invention, and be not used in qualification the present invention.
Fig. 1 is the flow chart according to the transmission method of the automatic repeat requests of mixing of the present invention.As shown in Figure 1, this method may further comprise the steps:
The invention provides a kind of transmission method that mixes automatic repeat requests, it may further comprise the steps:
Step S102, radio network controller is allocated transmission channel in advance; And
Step S104, in the continuous retransmission processes of grouped data, when the upstream packet user who chooses to scheduling when the base station issued schedule information, the base station selected a transmission channel in the transmission channel to send the response instructions information of mixing automatic repeat requests and reply indication information according to predetermined scheduling strategy.
Wherein, transmission channel comprises: the aggregate channel of the compression channel of the compression channel of access grant channel, access grant channel, High-Speed Shared Control Channel, High-Speed Shared Control Channel and above-mentioned any two transmission channels.Replying indication information comprises receiving and replys indication information and negative response indication information.
In step S104, also carry out following the processing: when the upstream packet user who chooses to scheduling when the base station issued schedule information, the enhancing uplink physical channel of whether receiving other between last enhancing uplink physical channel of once receiving and selected transmission channel was judged in the base station.
Wherein, when not receiving other enhancing uplink physical channel between enhancing uplink physical channel of receiving when the last time and the selected transmission channel, automatic repeat requests response instructions information is returned in the base station.
And when receiving other enhancing uplink physical channel between last enhancing uplink physical channel of receiving and the selected transmission channel, carry out following the processing in step S104: if the base station all is to receive to reply indication information to the indication information of replying of all the enhancing uplink physical channels received before selected transmission channel, then indication information is replied in the base station reception of returning the automatic repeat requests of mixing of the last time.
Alternatively, when the base station to all the enhancing uplink physical channels received before selected transmission channel reply indication information when comprising the negative response indication information, the base station is returned farthest the negative response indication information of the automatic repeat requests of mixing once or is returned a predetermined negative response indication information that mixes automatic repeat requests.
Sending response instructions information of mixing automatic repeat requests and the mode of replying indication information by selected transmission channel is: increase by two indication territories in selected transmission channel, comprise: mix the process identification (PID) territory of automatic repeat requests and reply the indication information identification field, wherein, the process identification (PID) domain representation that mixes automatic repeat requests mixes the process number of automatic repeat requests, and replys the indication information identification field and represent that the process of mixing automatic repeat requests receives situation.
To sum up, the present invention proposes as can be seen in down channel AGCH (AGCH_less)/HS-SCCH (HS-SCCH_less), carry the scheme of feedback mechanism of the ACK/NACK of HARQ response, when having provided this scheme of realization then, the channel expansion structure when issuing different channels.
The feedback mechanism scheme of the ACK/NACK of HARQ response
In the scheduling of CPC, the UPA user that NodeB chooses to scheduling sends the HARQ response instructions information and receives the indication information ACK/NACK that replys with negative response by the E-AGCH/HS-SCCH channel.
When scheduling, down channel AGCH (AGCH_less)/HS-SCCH (HS-SCCH_less) can issue separately, also can issue simultaneously, when issuing separately, which issues just which channel is the HARQ response message be carried in, when issuing simultaneously, be carried in the AGCH channel, when AGCH and SCCH merge, just be carried in the channel after the fusion.
The feedback mechanism scheme of the ACK/NACK of the HARQ response of revising is as follows:
In the scheduling of HSUPA, NodeB can produce an ACK/NACK result to the up E-PUCH channel that receives, and according to dispatching algorithm, when sending down dispatch information, ACK/NACK is feedbacked, and principle of feedback is as follows:
At same UE, if NodeB last when receiving that once E-PUCH does not have new E-PUCH to upload between current transmission AGCH/SCCH, then no matter lastly receive that the feedback of E-PUCH is ACK, NACK will feed back;
At same UE, if NodeB when receiving that once E-PUCH has new E-PUCH to upload between current transmission AGCH/SCCH, then divides following two kinds of situations last:
If all before the current transmission AGCH/SCCH receive that replying of E-PUCH all is ACK, then in the AGCH/SCCH of current transmission, feed back the last ACK, ACK does not before this need feedback; And
If all before the current transmission AGCH/SCCH receive in the replying of E-PUCH that NACK is arranged, feedback once NACK farthest in the AGCH/SCCH of current transmission then, ACK does not before this need feedback, and other NACK after this NACK will feed back in AGCH/SCCH next time; Perhaps in the AGCH/SCCH of current transmission, feed back the NACK of the HARQ process number of certain regulation.
The channel expansion structure
Feedback mechanism according to the ACK/NACK of HARQ response, the present invention need carry (the U_HARQ process identification (PID) of HARQ response instructions information in down channel, be the E-PUCH response HARQ process of up HSUPA) and receive the indication information (ACK/NACK) of replying with negative response, the channel format that carries these information has following several, comprises all combining forms of these several channels.
According to different AGCH and AGCH_less form, designed new AGCH frame format, at AGCH (or AGCH_less), HS-SCCH (HS-SCCH_less) or AGCH (or AGCH_less) respectively and in the channel architecture that merges of HS-SCCH (HS-SCCH_less), carry the HARQ response instructions information, comprise the HARQ process number of identification feedback and the confirmation of receipt situation that ACK/NACK identifies this process.
Fig. 2 is the structural representation that does not increase HARQ response E-AGCH channel before, Fig. 3 increases the structural representation that the E-AGCH channel in RDI territory is arranged after HARQ responds, Fig. 4 increases the structural representation that does not have the E-AGCH channel in RDI territory after HARQ responds, Fig. 5 is the structural representation that does not increase HARQ response E-AGCH_less channel before, Fig. 6 is the structural representation that increases the E-AGCH_less channel after HARQ responds, Fig. 7 is the structural representation that does not increase HARQ response HS-SCCH channel before, Fig. 8 is the structural representation that increases the HS-SCCH channel after HARQ responds, Fig. 9 is the structural representation that does not increase HARQ response HS-SCCH_less channel before, Figure 10 is the structural representation that increases the HS-SCCH_less channel after HARQ responds, Figure 11 does not increase the structural representation that HARQ responds the aggregate channel of E-AGCH before and HS-SCCH, Figure 12 is the structural representation that increases the aggregate channel of E-AGCH after the HARQ response and HS-SCCH, Figure 13 is the structural representation that does not increase E-AGCH_less and the aggregate channel of HS-SCCH_less before the HARQ response, and Figure 14 is the structural representation that increases the aggregate channel of E-AGCH_less after HARQ responds and HS-SCCH_less.Come several channel modes that issue that the present invention relates to are described in detail to Figure 14 below with reference to Fig. 2.
Should be appreciated that HARQ response indication is carried in the transmission of HARQ exactly in descending E-AGCH channel, so just increased by 2 indication territories: HARQ process identification (PID) territory and ACK/NACK identification field.
E-AGCH as shown in Figure 2 is identical with the bit length of as shown in Figure 7 normal HS-SCCH channel, but different with the bit length of as shown in Figure 9 SCCH_less channel.
In Figure 14, RDI refers to resource continuous indication at Fig. 2.ENI is the UCCH number, and ECSN is a counter, and the total length of structure of E-AGCH channel is 47bit.Wherein, RDI is optionally, and wherein 5bit (the RDI territory is arranged) or 8bit (no RDI territory) are complete 0, are that AGCH/SCCH identifies bit, are used to distinguish normal HS-SCCH channel and E-AGCH.
As shown in Figure 3, the HARQ territory of increase, the HARQ process number of the HSUPA of identification feedback (being called for short U HRAQ process identification (PID)), length is 3bit; ACK/NACK identifies the reception situation of this process, length 1bit.The total length of structure that increases the E-AGCH channel after HARQ responds is 51bit.
In addition, in Fig. 4, the AGCH/SCCH territory is divided into two parts, the 5bit in the preceding part complete 0 is used for identifying E-AGCH, is used to distinguish E-AGCH and normal HS-SCCH channel; The a part of length in back is that 3bit is used for distributing to HARQ, the HARQ process number of identification feedback; ACK/NACK identifies the reception situation of this process, length 1bit.The total length of structure that increases the E-AGCH channel after HARQ responds is 48bit.
In Fig. 5, identical at a kind of E-AGCH_less channel of HS-SCCH_less design with the channel bit length of HS-SCCH_less, with the compresses in length of original AGCH channel, EI and RDI are removed, adopt semi-static mode, dispose to UE by RNC.
In Figure 11, the HARQ process identification number of HSDPA is represented in the D_HARQ process identification (PID).
Should be appreciated that in E-AGCH+HS-SCCH_less or the E-AGCH_less+HS-SCCH channel architecture, it is similar that the channel architecture of increase HARQ response message is formed mode and E-AGCH+HS-SCCH and E-AGCH_less+HS-SCCH_less.
In addition, the figure that increases channel format that E-AGCH, the E-AGCH_less of HARQ response and they and HS-SCCH (or HS-SCCH_less) channel merge mutually and front is not necessarily identical, exists as long as guarantee the content among the figure.
In the scheduling of CPC, the UPA user that NodeB chooses to scheduling sends the HARQ response instructions information and receives the indication information ACK/NACK that replys with negative response by the E-AGCH/HS-SCCH channel.
When scheduling, down channel AGCH (AGCH_less)/HS-SCCH (HS-SCCH_less) can issue separately, also can issue simultaneously, when issuing separately, which issues just which channel is the HARQ response message be carried in, when issuing simultaneously, be carried in the AGCH channel, when AGCH and SCCH merge, just be carried in the channel after the fusion.
As shown in Figure 3, the U_HRAQ process identification (PID), 3bit represents one of 8 processes of that up HSUPA of downstream feedback ACK/NACK information, the 1bitACK/NACK radical is according to different dispatch state.For the HARQ process that scheduling is arranged, no matter be ACK, NACK, descending AGCH (AGCH_less)/HS-SCCH (HS-SCCH_less) channel all will feed back; If the process of several nothing scheduling is arranged, just see their ACK/NACK sign.Suppose that continuous 3 processes have not dispatched, current descending AGCH (AGCH_less)/HS-SCCH (HS-SCCH_less) channel need carry ACK/NACK information, the accepting state which process this ACK/NACK feeds back will decide according to the combined situation of the ACK/NACK word of these 3 processes: if all be that ACK does not have NACK, 3 ACK/NACK can use " 111 " so, expression, then only feed back nearest HARQ process, i.e. the ACK of the 3rd process; If NACK is wherein arranged, for example 3 ACK/NACK words are " 001 ", farthest NACK of feedback then, i.e. and the NACK of first HARQ, for example 3 ACK/NACK words are " 100 ", then feed back the NACK of second HARQ.
Should be appreciated that the present invention is applicable to cdma system, more than be the preferred embodiments of the present invention only, be not limited to the present invention, for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a transmission method that mixes automatic repeat requests is used for the automatic repeat requests of continuous retransmission processes transmission mixing in the grouped data of TD-SCDMA system, it is characterized in that, may further comprise the steps:
Step 1, radio network controller is allocated transmission channel in advance; And
Step 2, in the continuous retransmission processes of grouped data, when the upstream packet user who chooses to scheduling when the base station issued schedule information, described base station selected a transmission channel in the described transmission channel to send the response instructions information of the automatic repeat requests of described mixing and reply indication information according to predetermined scheduling strategy.
2. transmission method according to claim 1, it is characterized in that described transmission channel comprises: the aggregate channel of the compression channel of the compression channel of access grant channel, access grant channel, High-Speed Shared Control Channel, High-Speed Shared Control Channel and above-mentioned any two transmission channels.
3. transmission method according to claim 1 is characterized in that, the described indication information of replying comprises receiving and replys indication information and negative response indication information.
4. transmission method according to claim 1 is characterized in that, in described step 2, also carries out following the processing:
When the described upstream packet user who chooses to scheduling when described base station issued described schedule information, the enhancing uplink physical channel of whether receiving other between last enhancing uplink physical channel of once receiving and selected transmission channel was judged in described base station.
5. transmission method according to claim 4 is characterized in that, in described step 2,
When not receiving described other enhancing uplink physical channel between enhancing uplink physical channel of receiving when the described last time and the selected transmission channel, described automatic repeat requests response instructions information is returned in described base station.
6. transmission method according to claim 4 is characterized in that, in described step 2, when receiving described other enhancing uplink physical channel between enhancing uplink physical channel of receiving when the described last time and the selected transmission channel, carries out following the processing:
If described base station all is that indication information is replied in described reception to the described indication information of replying of all the enhancing uplink physical channels received before selected transmission channel, then described base station is returned the reception of the last automatic repeat requests of mixing and is replied indication information.
7. transmission method according to claim 6, it is characterized in that, in described step 2, when described base station all the enhancing uplink physical channels received before selected transmission channel described replied indication information when comprising described negative response indication information, also carry out following the processing:
The negative response indication information of the automatic repeat requests of mixing is once returned farthest in described base station.
8. transmission method according to claim 6, it is characterized in that, in described step 2, before selected transmission channel all are received uplink physical channel described of enhancing when described base station and replied indication information when comprising described negative response indication information, also carry out following the processing:
A predetermined negative response indication information that mixes automatic repeat requests is returned in described base station.
9. according to the described transmission method of aforementioned each claim, it is characterized in that, the response instructions information that sends the automatic repeat requests of described mixing by selected transmission channel with the mode of replying indication information is: increase by two indication territories in selected transmission channel, comprise: the process identification (PID) territory of the automatic repeat requests of described mixing and reply the indication information identification field
Wherein, the process number of the automatic repeat requests of the described mixing of process identification (PID) domain representation of the automatic repeat requests of described mixing, and
The described indication information identification field of replying represents that the process of the automatic repeat requests of described mixing receives situation.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102065562A (en) * | 2010-11-26 | 2011-05-18 | 华为技术有限公司 | Scheduling method, equipment and system |
| CN102687451A (en) * | 2009-12-03 | 2012-09-19 | 英特尔公司 | Determining hybrid automatic repeat request (HARQ) timing |
| WO2020063533A1 (en) * | 2018-09-28 | 2020-04-02 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for optimized harq operation |
| CN111726216A (en) * | 2018-03-06 | 2020-09-29 | Oppo广东移动通信有限公司 | Response information processing method, equipment and storage medium |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1852609B (en) * | 2006-01-09 | 2010-04-14 | 华为技术有限公司 | Physical random access-in channel access-in resource distribution strategy |
| PT3169016T (en) * | 2006-02-03 | 2018-12-03 | Guangdong Oppo Mobile Telecommunications Corp Ltd | Uplink resource allocation in a mobile communication system |
| CN100414857C (en) * | 2006-06-29 | 2008-08-27 | 华为技术有限公司 | E-DCH radio link configuration method |
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2007
- 2007-10-12 CN CN2007101525863A patent/CN101409608B/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102687451A (en) * | 2009-12-03 | 2012-09-19 | 英特尔公司 | Determining hybrid automatic repeat request (HARQ) timing |
| CN102687451B (en) * | 2009-12-03 | 2016-04-06 | 英特尔公司 | Determine hybrid automatic repeat-request (HARQ) regularly |
| CN102065562A (en) * | 2010-11-26 | 2011-05-18 | 华为技术有限公司 | Scheduling method, equipment and system |
| CN102065562B (en) * | 2010-11-26 | 2013-11-06 | 华为技术有限公司 | Scheduling method, equipment and system |
| CN111726216A (en) * | 2018-03-06 | 2020-09-29 | Oppo广东移动通信有限公司 | Response information processing method, equipment and storage medium |
| WO2020063533A1 (en) * | 2018-09-28 | 2020-04-02 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for optimized harq operation |
| US11824659B2 (en) | 2018-09-28 | 2023-11-21 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for optimized HARQ operation |
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| CN101409608B (en) | 2012-05-09 |
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