CN106656411B - method and system for scheduling MCS in HARQ (hybrid automatic repeat request) binding mode - Google Patents

method and system for scheduling MCS in HARQ (hybrid automatic repeat request) binding mode Download PDF

Info

Publication number
CN106656411B
CN106656411B CN201510740724.4A CN201510740724A CN106656411B CN 106656411 B CN106656411 B CN 106656411B CN 201510740724 A CN201510740724 A CN 201510740724A CN 106656411 B CN106656411 B CN 106656411B
Authority
CN
China
Prior art keywords
mcs
value
cqi
mcs value
current
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201510740724.4A
Other languages
Chinese (zh)
Other versions
CN106656411A (en
Inventor
郭乐
余秋星
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Xinwei Telecom Technology Inc
Original Assignee
Beijing Xinwei Telecom Technology Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Xinwei Telecom Technology Inc filed Critical Beijing Xinwei Telecom Technology Inc
Priority to CN201510740724.4A priority Critical patent/CN106656411B/en
Publication of CN106656411A publication Critical patent/CN106656411A/en
Application granted granted Critical
Publication of CN106656411B publication Critical patent/CN106656411B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiment of the invention discloses a method and a system for scheduling MCS in a HARQ-ACK/NACK binding mode. The method comprises the following steps: calculating the outer ring MCS temporary adjustment amount according to the HARQ feedback information; updating the outer ring MCS value according to the outer ring MCS temporary adjustment amount; and scheduling the current MCS value according to the outer ring MCS value. The technical scheme of the invention solves the problem that the MCS value is excessively lowered due to the misjudgment of the base station on the actual number of the HARQ feedback information NACK, and improves the transmission rate of the downlink service while ensuring the transmission reliability of the downlink service of the base station.

Description

Method and system for scheduling MCS in HARQ (hybrid automatic repeat request) binding mode
Technical Field
The present invention relates to the field of wireless communication technologies, and in particular, to a method and a system for scheduling MCS in HARQ bundling mode.
background
In a Long Term Evolution (LTE) system, an Evolved NodeB (eNB) determines a Modulation and demodulation Scheme (MCS) of a downlink service according to a Channel Quality Indicator (CQI) fed back by a User Equipment (UE) and a Block Error Rate (BLER) of the downlink service.
the channel quality of the UE at different positions is different, and the eNB adjusts the MCS of the UE through Adaptive Modulation Coding (AMC), so as to provide higher transmission efficiency for the UE with good channel quality and provide higher reliability for the UE with poor channel quality. AMC has two methods, inner loop and outer loop. The inner loop is used for judging MCS based on CQI feedback of UE, and the outer loop is used for judging MCS according to BLER of downlink service. When the BLER increases, the inner loop MCS value needs to be adjusted downward, and when the BLER decreases, the inner loop MCS needs to be adjusted upward.
According to the Time Division Duplex (TDD) -LTE protocol requirement, when a Hybrid Automatic Repeat reQuest (HARQ) -ACKnowledgement (ACK)/Negative ACKnowledgement (NACK) bundling mode is used, an ACK or NACK result of downlink data of each codeword is obtained by logically and-ing ACK or NACK results of a plurality of downlink subframes, and then fed back to a base station in a corresponding uplink subframe. When the feedback result of the uplink subframe is NACK, the actual NACK number of the downlink subframe is several, which cannot be determined by the base station, and the NACK number directly affects the BLER size, so how to determine the NACK number in this case is a problem to be solved.
In the prior art, when the feedback result of the uplink subframe is NACK, the base station generally considers that the data demodulation results of all downlink subframes are NACK, which results in that the number of NACKs considered by the base station is far higher than the actual number of NACKs, thereby causing a higher BLER and a lower MCS value. Although the processing method can ensure the correctness of downlink data transmission, the outer loop MCS value is excessively lowered most of the time, so that a single stream is scheduled when double streams can be scheduled originally, and the transmission rate of downlink services is reduced.
Disclosure of Invention
In view of this, embodiments of the present invention provide a method and a system for scheduling an MCS in an HARQ-ACK/NACK binding mode, so as to solve the problem that the MCS value is excessively lowered due to misjudgment of the base station on the actual number of HARQ feedback information NACKs, and improve the downlink traffic transmission rate while ensuring the downlink traffic transmission reliability of the base station.
The embodiment of the invention adopts the following technical scheme:
in a first aspect, a method for scheduling MCS in HARQ-ACK/NACK bundling mode, comprises: calculating the outer ring MCS temporary adjustment amount according to the HARQ feedback information; updating the outer ring MCS value according to the outer ring MCS temporary adjustment amount; and scheduling the current MCS value according to the outer ring MCS value.
In a second aspect, a system for scheduling MCS in HARQ-ACK/NACK bundling mode, comprises: an outer ring MCS temporary adjustment amount calculation unit, configured to calculate an outer ring MCS temporary adjustment amount according to the HARQ feedback information; an outer loop MCS value updating unit, configured to update an outer loop MCS value according to the outer loop MCS temporary adjustment amount; and the current MCS value scheduling unit is used for scheduling the current MCS value according to the outer ring MCS value.
According to the technical scheme, the outer loop MCS temporary adjustment amount is calculated according to the HARQ feedback information; updating the outer ring MCS value according to the outer ring MCS temporary adjustment amount; and scheduling the current MCS value according to the outer ring MCS value. The outer ring MCS temporary adjustment amount is used for tracking the HARQ feedback information ACK or NACK in real time, and then the outer ring MCS value is updated in real time through the outer ring MCS temporary adjustment amount, so that the base station can accurately obtain the actual NACK number, and the base station is prevented from misjudging the NACK number to cause the MCS value scheduled by the base station to be lower; the technical scheme dynamically adjusts the outer ring MCS value in real time, so that the MCS value scheduled by the base station is closer to the actual channel condition, and the downlink service transmission rate is improved while the downlink service transmission reliability of the base station is ensured.
drawings
fig. 1 is a flowchart of a method for scheduling MCS in HARQ-ACK/NACK bundling mode according to an embodiment of the present invention.
fig. 2 is a flowchart of a method for scheduling a current MCS value according to an outer loop MCS value according to an embodiment of the present invention.
Fig. 3 is a flowchart of a method for adjusting an outer loop MCS value in a current MCS value scheduling period according to an embodiment of the present invention.
Fig. 4 is a system structure diagram for scheduling MCS in HARQ-ACK/NACK bundling mode according to an embodiment of the present invention.
fig. 5 is a structural diagram of a current MCS value scheduling unit according to an embodiment of the present invention.
Detailed Description
The following detailed description of specific embodiments of the invention refers to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. In addition, for convenience of description, only a part, not all of the contents related to the present invention are shown in the drawings.
example one
As shown in fig. 1, an embodiment of the present invention provides a method for scheduling MCS in HARQ-ACK/NACK bundling mode, where the method is applicable in a TDD-LTE mobile communication system, and the method includes the following steps:
And S110, calculating the outer ring MCS temporary adjustment amount according to the HARQ feedback information.
In the implementation process of this step, the eNB may notify the UE of the cell parameter configuration through a broadcast message, and the eNB may set an initial MCS value to schedule downlink traffic; the UE counts information such as ACK, NACK, or DTX demodulated under the MCS value according to the initially scheduled MCS value, and then may feed back the information such as ACK, NACK, or DTX to the eNB through a Physical Uplink Control CHannel (PUCCH) or a Physical Uplink Shared control CHannel (PUSCH). The eNB may perform the following calculation according to the ACK, NACK, or DTX information fed back by the UE:
first, the actual measurement value of the block error rate can be calculated according to the formula (1),
bler＝NACK/(ACK+NACK) (1)
in equation (1), bler is a block error rate actual measurement value, and in the case where DTX and NACK are not distinguished, this case can be considered as NACK, and if HARQ feedback information is NACK or DTX, NACK becomes 1 and ACK becomes 0; if the HARQ feedback information is ACK, NACK is 0 and ACK is 1.
secondly, the bler can be brought into formula (2) to calculate the outer loop MCS temporary adjustment amount,
outerMCS_tmp＝(BLER_target－bler)/(1－BLER_target)×STEP (2)
In the formula (2), outer MCS _ tmp is an outer ring MCS temporary adjustment amount, BLER _ target is a block error rate target value, and STEP is an adjustment STEP length; wherein, BLER _ target may be 10%, STEP may be 0.5, and the values of BLER _ target and STEP are not limited in any way in the specific implementation process of this embodiment.
for example, if the HARQ feedback information is NACK, bler is calculated and taken into equation (2) to obtain-0.5 outmcs _ tmp; if the HARQ feedback information is ACK, the analogous calculation results in that the outERMCS _ tmp is approximately 0.055.
and S120, updating the outer ring MCS value according to the outer ring MCS temporary adjustment amount.
In the implementation process of this step, the outer loop MCS value can be updated according to equation (3),
outerMCS(n)＝outerMCS(n-1)+outerMCS_tmp (3)
in equation (3), outerMCS (n), (n) and (n-1) respectively represent outer loop MCS values of the nth and n-1 subframes, n is a positive integer greater than or equal to 2, specifically, outerMCS (1) is an outer loop MCS value of the 1 st subframe, and outerMCS (1) may be set in an initialization process, for example, outerMCS (1) ═ DELTA, DELTA is a fixed parameter.
it should be noted that, the update of the outer loop MCS value is performed for a user reported by new ACK, NACK, or DTX, a single-stream user refreshes a codeword 0(codeword, cw0), and a dual-stream user needs to control codeword by codeword, which may be specifically adopted as follows:
For codeword 0 of the newly accessed user and codeword 1 of the newly transmitted dual-stream user of Transmission Mode 3 (TM 3), the outer loop MCS value is initialized:
For new access user codeword 0, the outer loop MCS value is initialized to outerMCS _ cw0 ═ DELTA;
For a newly transmitted TM3 dual stream user codeword 1, the outer loop MCS value is initialized to outerMCS _ cw1 — outerMCS _ cw 0.
For the user needing to update the outer loop MCS value, the procedure returns to step S110 to calculate the temporary outer loop MCS adjustment amount, and then the outer loop MCS value is updated according to equation (3).
s130, scheduling the current MCS value according to the outer ring MCS value.
In this embodiment, the current MCS value may be scheduled according to equation (4),
MCS_current＝min(28，max(0，innerMCS+outerMCS)) (4)
In equation (4), MCS _ current is the currently scheduled MCS value, innerMCS is the inner loop MCS value, outer MCS is the outer loop MCS value, and innerMCS is calculated based on the CQI information fed back by the UE.
in summary, in the technical solution of this embodiment, the outer loop MCS temporary adjustment amount is calculated according to the HARQ feedback information; then updating the outer loop MCS value according to the outer loop MCS temporary adjustment amount; and then scheduling the current MCS value according to the outer loop MCS value. According to the technical scheme of the embodiment, the HARQ feedback information ACK or NACK is tracked in real time by using the outer ring MCS temporary adjustment amount, and then the outer ring MCS value is updated in real time by using the outer ring MCS temporary adjustment amount, so that the base station can accurately obtain the actual NACK number, and the purpose that the MCS value scheduled by the base station is lower due to the misjudgment of the base station on the NACK number is achieved. The technical scheme of the embodiment can dynamically adjust the outer ring MCS value in real time, so that the MCS value scheduled by the base station is closer to the actual channel condition, and the technical effect of improving the downlink service transmission rate is achieved while the downlink service transmission reliability of the base station is ensured. Example two
please refer to fig. 2, which is a flowchart illustrating a method for scheduling a current MCS value according to the outer loop MCS value according to an embodiment of the present invention. This embodiment further provides step S130 of the first embodiment, that is, a preferred implementation of scheduling the current MCS value according to the outer loop MCS value, where step S130 may specifically include:
s131 receives the CQI report value CQI _ rpt.
S132, filtering the CQI reported value to obtain a CQI filtered value.
For users with new CQI reports arriving, the CQI reports may be filtered according to equation (5),
CQI_flt(n)＝(1-α)×CQI_flt(n-1)+α×CQI_rpt (5)
in the formula (5), CQI _ flt (n) and CQI _ flt (n-1) represent CQI filter values of n-th and n-1-th sub-frames, n is a positive integer greater than or equal to 2, and α is a filter factor.
for the user where the first CQI report arrives,
CQI_flt(n)＝CQI_rpt (6)
S133, calculating the inner loop MCS value according to the CQI filtering value.
Calculating the inner loop MCS value according to the CQI filtering value obtained after filtering, and calculating according to the formula (7),
innerMCS＝min(2×CQI_flt-4，0) (7)
in equation (7), CQI _ flt is a CQI filtered value.
S134, scheduling the current MCS value according to the outer ring MCS value and the inner ring MCS value.
The detailed implementation of this step can refer to step S130 of the first embodiment.
EXAMPLE III
In the first embodiment, the current outer-loop MCS value is obtained, and in a downlink dual-stream transmission and HARQ-ACK/NACK bundling mode of the TDD LTE system, if a current subframe receives 2-bit NACK information, the base station considers that demodulation results on four bundled subframes of each downlink stream are all NACK, and according to step S110 in the first embodiment, it can calculate that outerMCS _ tmp is equal to-4, that is, the current outer-loop MCS value is reduced by at least 4 steps, which may cause the MCS value scheduled by the base station to be pulled lower, so this embodiment provides a preferred embodiment for adjustment of the subsequent outer-loop MCS value.
Please refer to fig. 3, which is a flowchart illustrating a method for adjusting an outer loop MCS value in a current MCS value scheduling period according to an embodiment of the present invention. The main difference between this embodiment and any embodiment of the present invention is that, in this embodiment, on the basis of the first embodiment and the second embodiment, a step of defining an outer loop MCS value for subsequent scheduling is added, and the step may specifically include:
S140, in the scheduling period of scheduling the current MCS value, whether the outer ring MCS value is smaller than the current outer ring MCS value minus two.
In this step, the scheduling period may be: and the base station adopts the current MCS value to carry out scheduling until the base station receives the time period of the corresponding HARQ feedback information. If the outer ring MCS value is larger than or equal to the current outer ring MCS value minus two in the scheduling period, the outer ring MCS value in the scheduling period is not limited; if the outer loop MCS value is smaller than the current outer loop MCS value in the scheduling period, go to step S150.
s150, limiting the outer ring MCS value to be more than or equal to the current outer ring MCS value minus two.
For example, if the time when the current MCS value is adopted for scheduling is the mth subframe, the corresponding current outer ring MCS value is outmcs _ current, the HARQ feedback information received by the base station is the (m + k) th subframe, and m and k are both any positive integer, then all the scheduled outer ring MCS values satisfy the following conditions in the time period from the mth subframe to the (m + k) th subframe,
outerMCSm～(m+k)＝max(outerMCSm～(m+k)，outerMCScurrent-2) (8)
In formula (8), outermCsm～(m+k)Indicating all scheduled outer loop MCS values in a time period from the mth subframe to the m + k subframe.
According to the embodiment, the base station can adopt the high-order MCS value as far as possible under the condition of adopting downlink double-flow or single-flow transmission, and the base station can improve the downlink double-flow proportion and the downlink service transmission rate while ensuring the reliability of downlink service transmission by limiting the downlink service outer-loop MCS value.
In summary, the above embodiments of the present invention calculate the outer loop MCS temporary adjustment amount according to the HARQ feedback information; updating the outer ring MCS value according to the outer ring MCS temporary adjustment amount; and scheduling the current MCS value according to the outer ring MCS value. The outer ring MCS temporary adjustment amount is used for tracking the HARQ feedback information ACK or NACK in real time, and then the outer ring MCS value is updated in real time through the outer ring MCS temporary adjustment amount, so that the base station can accurately obtain the actual NACK number, and the base station is prevented from misjudging the NACK number to cause the MCS value scheduled by the base station to be lower; the technical scheme dynamically adjusts the outer ring MCS value in real time, so that the MCS value scheduled by the base station is closer to the actual channel condition, and the downlink service transmission rate is improved while the downlink service transmission reliability of the base station is ensured.
The following is an embodiment of a system for scheduling MCS in HARQ-ACK/NACK bundling mode according to the present invention. The embodiment of the system for scheduling MCS in HARQ-ACK/NACK bundling mode and the above-mentioned embodiment of the method for scheduling MCS in HARQ-ACK/NACK bundling mode belong to the same concept, and details not described in detail in the following embodiments may refer to the embodiment of the method for scheduling MCS in HARQ-ACK/NACK bundling mode.
Example four
On the basis of the technical solution of any embodiment of the present invention, as shown in fig. 4, an embodiment of the present invention provides a system 410 for scheduling MCS in HARQ-ACK/NACK bundling mode, where the system 410 includes: an outer loop MCS temporary adjustment amount calculation unit 411, an outer loop MCS value update unit 412, and a current MCS value scheduling unit 413.
wherein, the outer loop MCS temporary adjustment amount calculating unit 411 is configured to calculate an outer loop MCS temporary adjustment amount according to the HARQ feedback information; an outer loop MCS value updating unit 412, configured to update an outer loop MCS value according to the outer loop MCS temporary adjustment amount; a current MCS value scheduling unit 413, configured to schedule the current MCS value according to the outer loop MCS value.
EXAMPLE five
On the basis of any embodiment of the present invention, as shown in fig. 5, the current MCS value scheduling unit 413 includes a CQI report value receiving module 4131, a CQI report value filtering module 4132, an inner loop MCS value calculating module 4133, and a current MCS value scheduling module 4134.
wherein, the CQI report value receiving module 4131 is configured to receive a CQI report value; a CQI report filtering module 4132, configured to filter the CQI report to obtain a CQI filtered value; an inner loop MCS value calculating module 4133, configured to calculate an inner loop MCS value according to the CQI filtered value; a current MCS value scheduling module 4134, configured to schedule the current MCS value according to the outer loop MCS value and the inner loop MCS value.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes in the detailed description of the present invention will be apparent to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. A method for scheduling Modulation Coding Scheme (MCS) under a hybrid automatic repeat request (HARQ) -Acknowledgement (ACK)/Negative Acknowledgement (NACK) binding mode is characterized by comprising the following steps:
according to the HARQ feedback information, calculating the outer ring MCS temporary adjustment amount, which comprises the following steps:
outerMCS_tmp＝(BLER_target－bler)/(1－BLER_target)×STEP，
Wherein, outer MCS _ tmp is outer ring MCS temporary adjustment quantity, BLER _ target is block error rate target value, STEP is adjustment STEP, BLER is block error rate measured value, and the calculation formula is
bler＝NACK/(ACK+NACK)，
in the formula, if the HARQ feedback information is ACK, NACK is 0, and ACK is 1; if the HARQ feedback information is NACK or DTX, setting NACK to 1 and setting ACK to 0;
Updating the outer loop MCS value according to the outer loop MCS temporary adjustment amount, including:
outer MCS (n) is outer loop MCS value, n is equal to 1, DELTA is fixed parameter, outer MCS (1) is outer loop MCS value of 1 st sub-frame; or
outerMCS (n) and (n-1) + outerMCS _ tmp, where n is a positive integer of 2 or more, and outerMCS (n) and (n-1) respectively represent outer loop MCS values of the nth and n-1 subframes;
And scheduling the current MCS value according to the outer loop MCS value, wherein the scheduling comprises the following steps:
MCS_current＝min(28，max(0，innerMCS+outerMCS))，
In the formula, MCS _ current is the current MCS value, and innerMCS is the inner loop MCS value.
2. The method of claim 1, wherein the scheduling a current MCS value according to the outer loop MCS value comprises:
Receiving a Channel Quality Indicator (CQI) report value;
Filtering the CQI report value to obtain a CQI filtered value;
Calculating an inner-loop MCS value according to the CQI filtering value;
and scheduling the current MCS value according to the outer ring MCS value and the inner ring MCS value.
3. The method of claim 2, wherein said filtering said CQI report value to obtain a CQI filtered value comprises,
CQI _ flt (n) ═ CQI _ rpt, where CQI _ flt is a CQI filtered value, n is equal to 1, and CQI _ flt (1) is a CQI filtered value of the 1 st subframe; or
CQI _ flt (n) × CQI _ flt (n-1) + α × CQI _ rpt, where n is a positive integer equal to or greater than 2, CQI _ flt (n), and CQI _ flt (n-1) indicate CQI filter values of n-th and n-1-th subframes, and α is a filter factor.
4. the method of claim 3, wherein the inner loop MCS value is calculated as InnerMCS min (2 x CQI flt-4, 0), wherein InnerMCS is an inner loop MCS value.
5. A method according to any of claims 1-4, wherein the step of scheduling a current MCS value according to the outer loop MCS value is followed by:
and in the scheduling period for scheduling the current MCS value, limiting the outer ring MCS value to be more than or equal to the current outer ring MCS value minus two.
a system for scheduling MCS in HARQ-ACK/NACK bundling mode, comprising:
an outer loop MCS temporary adjustment amount calculation unit, configured to calculate an outer loop MCS temporary adjustment amount according to the HARQ feedback information, including:
outerMCS_tmp＝(BLER_target－bler)/(1－BLER_target)×STEP，
Wherein, outer MCS _ tmp is outer ring MCS temporary adjustment quantity, BLER _ target is block error rate target value, STEP is adjustment STEP, BLER is block error rate measured value, BLER calculation formula is
bler＝NACK/(ACK+NACK)，
In the formula, if the HARQ feedback information is ACK, NACK is 0, and ACK is 1; if the HARQ feedback information is NACK or DTX, setting NACK to 1 and setting ACK to 0;
An outer loop MCS value updating unit, configured to update an outer loop MCS value according to the outer loop MCS temporary adjustment amount, including:
outer MCS (n) is outer loop MCS value, n is equal to 1, DELTA is fixed parameter, outer MCS (1) is outer loop MCS value of 1 st sub-frame; or
outerMCS (n) and (n-1) + outerMCS _ tmp, where n is a positive integer of 2 or more, and outerMCS (n) and (n-1) respectively represent outer loop MCS values of the nth and n-1 subframes;
a current MCS value scheduling unit, configured to schedule a current MCS value according to the outer loop MCS value, including:
MCS_current＝min(28，max(0，innerMCS+outerMCS))，
In the formula, MCS _ current is the current MCS value, and innerMCS is the inner loop MCS value.
7. the system of claim 6, wherein the current MCS value scheduling unit comprises:
A CQI reported value receiving module for receiving the CQI reported value;
A CQI report value filtering module for filtering the CQI report value to obtain a CQI filtering value;
An inner loop MCS value calculating module, configured to calculate an inner loop MCS value according to the CQI filtered value; and
And the current MCS value scheduling module is used for scheduling the current MCS value according to the outer ring MCS value and the inner ring MCS value.
CN201510740724.4A 2015-11-04 2015-11-04 method and system for scheduling MCS in HARQ (hybrid automatic repeat request) binding mode Expired - Fee Related CN106656411B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510740724.4A CN106656411B (en) 2015-11-04 2015-11-04 method and system for scheduling MCS in HARQ (hybrid automatic repeat request) binding mode

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510740724.4A CN106656411B (en) 2015-11-04 2015-11-04 method and system for scheduling MCS in HARQ (hybrid automatic repeat request) binding mode

Publications (2)

Publication Number Publication Date
CN106656411A CN106656411A (en) 2017-05-10
CN106656411B true CN106656411B (en) 2019-12-17

Family

ID=58850992

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510740724.4A Expired - Fee Related CN106656411B (en) 2015-11-04 2015-11-04 method and system for scheduling MCS in HARQ (hybrid automatic repeat request) binding mode

Country Status (1)

Country Link
CN (1) CN106656411B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111698066B (en) * 2019-03-15 2023-06-27 中国移动通信有限公司研究院 Information transmission method and terminal
CN111277369A (en) * 2020-01-20 2020-06-12 大连市共进科技有限公司 Downlink scheduling strategy adjusting method, device and server
CN113556821B (en) * 2020-08-17 2022-05-03 中兴通讯股份有限公司 Scheduling method, base station, and storage medium
CN114630443A (en) * 2020-12-09 2022-06-14 中兴通讯股份有限公司 Inner loop value adjusting method and device, storage medium and electronic device
CN117375777A (en) * 2022-06-27 2024-01-09 中兴通讯股份有限公司 Inner ring determining method, inner ring model training method, electronic device, and readable medium

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1859066A (en) * 2006-01-18 2006-11-08 华为技术有限公司 Method and device for channel quality indication calibrating and base station dispatching users data
CN103427885A (en) * 2012-05-15 2013-12-04 中兴通讯股份有限公司 Selecting method and device for transmission mode
CN103457691A (en) * 2012-06-04 2013-12-18 普天信息技术研究院有限公司 Downlink adaptive modulation coding method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9319928B2 (en) * 2012-01-18 2016-04-19 Texas Instruments Incorporated Link adaptation for LTE uplink

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1859066A (en) * 2006-01-18 2006-11-08 华为技术有限公司 Method and device for channel quality indication calibrating and base station dispatching users data
CN103427885A (en) * 2012-05-15 2013-12-04 中兴通讯股份有限公司 Selecting method and device for transmission mode
CN103457691A (en) * 2012-06-04 2013-12-18 普天信息技术研究院有限公司 Downlink adaptive modulation coding method

Also Published As

Publication number Publication date
CN106656411A (en) 2017-05-10

Similar Documents

Publication Publication Date Title
US20180310299A1 (en) Method, user equipment and base station for transmitting uplink control information
CN106656411B (en) method and system for scheduling MCS in HARQ (hybrid automatic repeat request) binding mode
CN110266372B (en) Method and apparatus for transmitting and receiving sounding reference signal
EP3304939B1 (en) Optimized mcs selection for machine type communication
KR101814437B1 (en) Method and apparatus
JP6975875B2 (en) Timing sequence adjustment method, base station, terminal and communication system
CN108370533B (en) Apparatus and method for contention window sizing
CN102611666B (en) Outer loop link adaptive implementation method and device
US20140126467A1 (en) Multiple outer loop link adaptation
CN105429738A (en) Data transmission method, device and system
CN102340385B (en) Hybrid automatic repeat request (HARQ) processing method and apparatus thereof
JP2015524205A (en) HARQ-ACK handling for unintended downlink subframes
CN108886436B (en) Radio network node, wireless device and methods performed therein
CN104579603A (en) Downlink scheduling method and device based on HARQ (hybrid automatic repeat request)
EP3289708B1 (en) Probing for increased capacity in reliable low-latency communication
US10003433B2 (en) Statistical model based control signal outer-loop adjustment
WO2021007719A1 (en) Apparatus and method of one-shot harq-ack codebook determination
US10341045B2 (en) Outer loop link adaptation with bundled feedback
CN102064925A (en) Adaptive retransmission method, device and system
CN102412945B (en) Power configuration method for physical harq indication channel
CN108464046B (en) Apparatus, system, and method for adaptive downlink scheduling and link adaptation
WO2018207002A1 (en) Method and apparatus for probabilistic dtx detection in a communication network
WO2023010503A1 (en) Transmission scheduling techniques
WO2015018022A1 (en) Signal transmission method, network-side device and user equipment
CN105790895B (en) A kind of implementation method and device of HARQ feedback

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20191217

Termination date: 20201104