CN102571189B - The data processing method that backhaul link subframe configuration switches and device - Google Patents

The data processing method that backhaul link subframe configuration switches and device Download PDF

Info

Publication number
CN102571189B
CN102571189B CN201010576978.4A CN201010576978A CN102571189B CN 102571189 B CN102571189 B CN 102571189B CN 201010576978 A CN201010576978 A CN 201010576978A CN 102571189 B CN102571189 B CN 102571189B
Authority
CN
China
Prior art keywords
backhaul link
unfinished
network side
harq processes
switching
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.)
Active
Application number
CN201010576978.4A
Other languages
Chinese (zh)
Other versions
CN102571189A (en
Inventor
杨瑾
毕峰
梁枫
吴栓栓
袁明
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.)
ZTE Corp
Original Assignee
ZTE Corp
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 ZTE Corp filed Critical ZTE Corp
Priority to CN201010576978.4A priority Critical patent/CN102571189B/en
Priority to PCT/CN2011/083157 priority patent/WO2012075897A1/en
Publication of CN102571189A publication Critical patent/CN102571189A/en
Application granted granted Critical
Publication of CN102571189B publication Critical patent/CN102571189B/en
Active 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
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1822—Automatic repetition systems, e.g. Van Duuren systems involving configuration of automatic repeat request [ARQ] with parallel processes

Landscapes

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

Abstract

The invention discloses the data processing method that the configuration of a kind of backhaul link subframe switches, network side and/or relay station (RN) are according to back haul link handover information, and hybrid automatic repeat-request (HARQ) process do not complete back haul link before switching and corresponding feedback information after handover target backhaul link subframe transmit under configuring; The present invention also discloses the data processing method of a kind of backhaul link subframe configuration switching and above-mentioned two kinds of corresponding devices of method, pass through the solution of the present invention, can while not introducing signaling consumption, both ensure that backwards compatibility, solve again the process problem that backhaul link subframe configuration switches rear corresponding HARQ process transmission and feedback information.

Description

Data processing method and device for switching backhaul link subframe configuration
Technical Field
The present invention relates to a technology for switching subframe configurations of a backhaul link in a Time Division Duplex (TDD) system of Long Term Evolution (LTE) and Long Term Evolution Advanced (LTE-a) in the third generation partnership project (3GPP), and in particular, to a data processing method and apparatus for switching subframe configurations of a backhaul link.
Background
In a network with Relay Nodes (RNs), as shown in fig. 1, a Link between an evolved Node b (eNB) and a Macro User Equipment (M-UE) in the network is called a Direct Link (Direct Link), a Link between the eNB and the RN is called a backhaul Link (backhaul Link), which is also called a Un interface, and a Link between the RN and a Relay User Equipment (R-UE) is called an access Link (access Link).
When in-band relay (inband-relay) is used, that is, the backhaul link and the access link use the same frequency resource, the backhaul link and the access link cannot transmit or receive on the same frequency resource at the same time because the inband-relay transmitter may generate interference (self-interference) to its receiver. In the TDD system, this problem is solved by dividing and using different uplink and downlink subframes in a time division manner between the backhaul link and the access link, that is, the network side configures uplink and downlink subframe configurations for the backhaul link, also called Un UL/DL Sub-configuration, for the backhaul link, and configures the RN to perform data transmission with the eNB instead of providing traffic data service for the R-UE on the uplink and downlink subframes of the backhaul link.
In the LTE system, as shown in fig. 2, a radio frame (frame) is represented by a dot-filled frame, a subframe (subframe) is represented by a diagonal frame, an OFDM symbol is represented by a blank frame, 1 10ms radio frames are formed by 10 subframes of 1ms, and one subframe includes a plurality of OFDM symbols. The TDD system is configured with 7 different uplink and downlink subframe configurations, also called TDD UL/DL Config, to meet different network requirements, as shown in table 1, where "D" denotes a downlink subframe, "U" denotes an uplink subframe, and "S" denotes a special subframe.
TABLE 1
For the backhaul link, since #0, #1, #5, #6 subframes need to carry broadcast information, synchronization signals, etc. and cannot be configured as Un subframes, subframes available for Un DL include #2, #3, #4, #7, #8, #9 subframes. There is no restriction on the configuration of the Un UL subframes. In addition, cells for including RNs are not supported for TDD UL/DL Config #0 and # 5.
According to the subframe configuration of the LTE TDD system, corresponding Un UL/DL Sub-configurations under different TDD UL/DL configurations are shown in tables 2-6, where DL: UL ratio represents the configured Un DL/UL subframe ratio, mark "U" at the corresponding subframe position represents the configuration as Un UL subframe, mark "D" represents the configuration as Un DL subframe, where table 2 represents Un UL/DL Sub-configurations for TDD UL/DL configuration # 1; table 3 shows Un UL/DL Sub-Config for TDD UL/DL Config # 2; table 4 shows Un UL/DL Sub-Config for TDD UL/DL Config # 3; table 5 shows Un UL/DL Sub-Config for TDD UL/DL Config # 4; table 6 shows Un UL/DL Sub-Config for TDD UL/DL Config # 6. And the network side adopts high-layer signaling configuration to indicate the specific TDD UL/DL Config and Un UL/DL Sub-Config used by the RN.
TABLE 2
TABLE 3
TABLE 4
TABLE 5
TABLE 6
The Un UL/DL Sub-config indicates RN by network side. For the TDD system Un UL/DL Sub-Config, different TDD UL/DL configs may be divided into different lists and arranged with sequence numbers, that is, as shown in tables 2 to 6, or Un UL/DL Sub-configs corresponding to all TDD UL/DL configs may be arranged in one list and arranged with sequence numbers, as shown in table 7.
TABLE 7
In the LTE system, data transmission between the UE and the eNB needs to establish a Hybrid Automatic Repeat Request (HARQ) process and perform corresponding feedback.
For the uplink synchronous HARQ process, the UE transmits uplink service Data on the configured resource, the eNB generates downlink feedback information (i.e., Acknowledgement/Negative Acknowledgement information ACK/NACK, Acknowledgement/Negative Acknowledgement) according to the receiving and decoding condition, and carries the downlink feedback information on a Physical HARQ Indicator Channel (PHICH) for feedback to the UE, or indicates the receiving condition of corresponding uplink Data to the UE by using a New Data Indicator (NDI) in the uplink Grant information (UL Grant), and a fixed timing relationship exists between an uplink subframe where the uplink service Data is transmitted and a downlink subframe where the feedback information is located. And the UE processes the transmission of corresponding uplink service data on corresponding downlink subframes according to the PHICH and/or NDI indication, namely when the indication is correct, the uplink HARQ process is ended, otherwise, the uplink service data is retransmitted according to the scheduling of the eNB. The number of Un UL subframes included in the backhaul link subframe configuration Un UL/DL Sub-config is equal to the maximum Un UL HARQ process number available for the Un UL/DL Sub-config, and according to table 7, the maximum Un UL HARQ process number corresponding to Un UL/DL Sub-config is shown in table 8.
TABLE 8
For a downlink asynchronous HARQ process, an eNB schedules and indicates a resource position where downlink service data of UE is transmitted, the UE receives the downlink service data according to the indication and generates Uplink ACK/NACK feedback information according to a receiving and decoding condition, the feedback information is reported to the eNB on a corresponding Physical Uplink Control Channel (PUCCH) resource or a Physical Uplink Shared Channel (PUSCH) resource, and a fixed time sequence relation exists between a downlink subframe where the downlink service data is transmitted and an Uplink subframe where the corresponding feedback information is located. And the eNB processes the corresponding downlink service data transmission according to the feedback information of the UE, namely when the UE feeds back that the reception is correct, the downlink HARQ process is ended, otherwise, the eNB reschedules the downlink service data to transmit to the UE.
For the backhaul link, the network side needs to configure Un UL/DL Sub-Config for the RN in addition to TDD UL/DL Config, where TDD UL/DL Config is generally not changed after configuration, and the Un UL/DL Sub-Config may be reconfigured by the network side according to network requirements, interference and other factors, so that when the Un UL/DL Sub-Config used by the RN is changed, there are two HARQ process mapping and feedback information processing problems during Un UL/DL Sub-Config handover. At present, no corresponding solution to this problem exists.
Disclosure of Invention
In view of the above, the main objective of the present invention is to provide a data processing method and apparatus for backhaul link subframe configuration switching, which solve the problem of backhaul link HARQ process mapping and feedback information processing when a Un UL/DL Sub-configuration used by an RN is changed.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the invention provides a data processing method for switching backhaul link subframe configuration, which comprises the following steps:
and the network side and/or the RN transmit the HARQ process which is not completed by the return link before switching and corresponding feedback information under the target return link subframe configuration after switching according to the return link switching information.
In the above scheme, the backhaul link switching information includes subframe configuration of an original backhaul link and subframe configuration of a target backhaul link, and/or HARQ process transmission factors of a backhaul link before switching.
In the above scheme, the HARQ process transmission factor includes at least one of: the method comprises the steps of determining the quantity of uplink HARQ processes unfinished by a return link before switching, the quantity of downlink HARQ processes unfinished by the return link before switching, feedback information of downlink HARQ processes of the return link before switching of an RN unreported by the RN, and feedback information and/or scheduling retransmission information of uplink HARQ processes of the return link before switching of the RN, which is not indicated by the network side.
In the above solution, the transmitting the HARQ process whose backhaul link is not completed before the handover and the corresponding feedback information under the target backhaul link subframe configuration after the handover is performed includes: the return link before switching has n unfinished uplink HARQ processes, the maximum available uplink HARQ process number corresponding to the target return link subframe configuration after switching is k, when k is larger than or equal to n, the network side selects n uplink (Un) subframes in k return link uplink (Un UL) subframes configured by the target return link subframe configuration, and scheduling indication RN sequentially loads the n unfinished uplink HARQ processes on the selected Un UL subframes; the RN loads the n unfinished uplink HARQ processes on corresponding n Un UL subframes according to the scheduling indication of the network side and transmits the n unfinished uplink HARQ processes to the network side;
when k is less than n, the network side selects k in the n unfinished uplink HARQ processes, the scheduling indication RN sequentially bears the selected k unfinished uplink HARQ processes on k Un UL subframes configured by the target backhaul link subframe, and suspends or discards other n-k unfinished uplink HARQ processes; and the RN loads the k unfinished uplink HARQ processes on corresponding k Un UL subframes according to a network side scheduling instruction and transmits the k unfinished uplink HARQ processes to the network side, wherein n and k are natural numbers.
In the foregoing solution, when the other n-k outstanding uplink HARQ processes are suspended, the method further includes: and the RN loads the unfinished n-k uplink HARQ processes on a Un UL subframe configured by a target backhaul link subframe according to the scheduling instruction of the network side and transmits the unfinished n-k uplink HARQ processes to the network side.
In the above solution, the transmitting the HARQ process whose backhaul link is not completed before the handover and the corresponding feedback information under the target backhaul link subframe configuration after the handover is performed includes: when the maximum available uplink HARQ process number corresponding to the original backhaul link subframe configuration and the target backhaul link subframe configuration is equal, the RN makes the Un UL subframes corresponding to the uplink HARQ processes under the original backhaul link subframe configuration correspond to the Un UL subframes corresponding to the uplink HARQ processes under the target backhaul link subframe configuration one by one, and maps and bears the unfinished uplink HARQ processes of the backhaul link before switching to the corresponding Un UL subframes of the target backhaul link subframe configuration according to the corresponding relation for transmission to the network side.
In the above solution, after the RN transmits the uplink HARQ process unfinished by the backhaul link before the handover to the network side by bearing the uplink HARQ process on the corresponding Un UL subframe configured by the target backhaul link subframe, the method further includes: and the network side transmits the feedback information and/or scheduling retransmission information corresponding to each uplink HARQ process to the RN according to the corresponding time sequence configured by the target backhaul link subframe.
In the above solution, the transmitting the HARQ process whose backhaul link is not completed before the handover and the corresponding feedback information under the target backhaul link subframe configuration after the handover is performed includes: the method comprises the steps that a return link before switching is provided with n unfinished downlink HARQ processes, a target return link subframe is configured with a corresponding maximum available downlink HARQ process number k, when k is larger than or equal to n, a network side sequentially schedules the n unfinished downlink HARQ processes, the n unfinished downlink HARQ processes are born on a return link downlink (Un DL) subframe and transmitted to an RN, and the RN receives the n unfinished downlink HARQ processes on the corresponding Un DL subframe;
when k is less than n, the network side selects k downlink HARQ processes from the n unfinished downlink HARQ processes, sequentially schedules the selected k downlink HARQ processes, bears the k unfinished downlink HARQ processes on a Un DL subframe to transmit to RN, and suspends or discards the other n-k unfinished downlink HARQ processes; and the RN receives the k unfinished downlink HARQ processes on corresponding Un DL subframes according to the indication of the network side, wherein n and k are natural numbers.
In the above scheme, the method further comprises: and the network side schedules and bears the suspended n-k unfinished downlink HARQ processes on the Un DL subframes configured by the target backhaul link subframes to transmit to the RN, and the RN receives the n-k unfinished downlink HARQ processes on the corresponding Un DL subframes according to the indication of the network side.
In the above solution, after the network side carries the unfinished downlink HARQ process of the backhaul link before the handover on the Un DL subframe configured by the subframe of the target backhaul link and transmits the downlink HARQ process to the RN, the method further includes: and the RN transmits the feedback information corresponding to each downlink HARQ process to the network side according to the corresponding time sequence configured by the target backhaul link subframe.
In the above solution, the transmitting the HARQ process whose backhaul link is not completed before the handover and the corresponding feedback information under the target backhaul link subframe configuration after the handover is performed includes: and the RN carries the feedback information of the downlink HARQ process of the return link before switching on the unreported network side on the first available Un UL subframe in the target return link subframe configuration after switching, and transmits the feedback information to the network side.
In the above solution, the transmitting the HARQ process whose backhaul link is not completed before the handover and the corresponding feedback information under the target backhaul link subframe configuration after the handover is performed includes: and the network side carries the feedback information and/or scheduling retransmission information of the uplink HARQ process of the return link before the switching of the RN, which is not indicated, on the first available Un DL subframe in the target return link subframe configuration after the switching, and transmits the feedback information and/or scheduling retransmission information to the RN.
In the above scheme, the network side is any one or a combination of more than one of the following: a base station (eNB), a RN as a network side, a cell coordination entity (MCE), a Gateway (GW), a Mobility Management (MME), an Evolved Universal Terrestrial Radio Access Network (EUTRAN), and an Operation Administration and Maintenance (OAM) manager.
The invention also provides a data processing device for switching the subframe configuration of the backhaul link, which comprises the following steps:
and the data processing module is used for transmitting the HARQ process which is not completed by the backhaul link before switching and corresponding feedback information under the target backhaul link subframe configuration after switching according to the backhaul link switching information.
The device further comprises a configuration switching module for acquiring the backhaul link switching information and notifying the data processing module.
The invention also provides a data processing method for switching the subframe configuration of the backhaul link, which comprises the following steps:
and the network side and/or the RN discards all unfinished HARQ processes and/or corresponding feedback information of the backhaul link before the switching after the switching.
In the above scheme, the discarding, by the network side, all unfinished HARQ processes and/or corresponding feedback information of the backhaul link before the handover after the handover includes: and the network side interrupts the transmission of all unfinished downlink HARQ processes and/or the transmission of feedback information corresponding to the uplink HARQ processes of the backhaul link, and establishes a new downlink HARQ process on a Un DL subframe configured by a subframe of the target backhaul link for data transmission.
In the above scheme, the discarding, by the RN, all unfinished HARQ processes and/or corresponding feedback information of the backhaul link before handover after handover includes: the RN interrupts the transmission of all unfinished uplink HARQ processes of the return link and/or the transmission of corresponding feedback information of a downlink HARQ process of the return link; and according to the scheduling indication of the network side, establishing a new uplink HARQ process on the Un UL subframe configured by the target backhaul link subframe for data transmission.
The invention also provides a data processing device for switching the subframe configuration of the backhaul link, which comprises: and the data processing module is used for discarding all unfinished HARQ processes and/or corresponding feedback information of the backhaul link before switching after switching.
According to the data processing method and device for switching the subframe configuration of the return link, a network side and/or an RN transmit an unfinished HARQ process of the return link before switching and corresponding feedback information under the target return link subframe configuration after switching according to the return link switching information; therefore, the backward compatibility, namely compatibility with an LTE system, is ensured while signaling overhead is not introduced, and the problems of corresponding HARQ process transmission and feedback information processing after backhaul link subframe configuration switching are solved.
Drawings
Fig. 1 is a schematic structural diagram of a network incorporating an RN in the prior art;
FIG. 2 is a diagram illustrating a radio frame structure in an LTE system according to the prior art;
fig. 3 is a schematic flow chart of a data processing method for implementing backhaul link subframe configuration switching according to the present invention;
fig. 4 is a schematic structural diagram of a data processing apparatus for implementing backhaul link subframe configuration switching according to the present invention.
Detailed Description
The basic idea of the invention is: and the network side and/or the RN transmit the HARQ process which is not completed by the return link before switching and corresponding feedback information under the target return link subframe configuration after switching according to the return link switching information.
The invention is further described in detail below with reference to the figures and the specific embodiments.
The invention realizes a data processing method for switching backhaul link subframe configuration, as shown in fig. 3, the method comprises the following steps:
step 101: a network side and/or an RN acquire return link switching information;
here, the backhaul link handover information includes an original backhaul link subframe configuration and a target backhaul link subframe configuration, and/or HARQ process transmission factors of a backhaul link before handover;
the original backhaul link subframe configuration refers to backhaul link subframe configuration used by a backhaul link before switching, and the target backhaul link subframe configuration refers to backhaul link subframe configuration used by a backhaul link after switching;
the return link subframe configuration switching refers to switching between different return link subframe configurations under the same TDD subframe configuration;
the HARQ process transmission factors include at least one of: the method comprises the steps of determining the quantity of uplink HARQ processes unfinished by a return link before switching, the quantity of downlink HARQ processes unfinished by the return link before switching, feedback information of downlink HARQ processes of the return link before switching of an RN unreported by the RN, and feedback information and/or scheduling retransmission information of uplink HARQ processes of the return link before switching of the RN, which is not indicated by the network side.
Step 102: after the return link subframe configuration is switched, the network side and/or the RN transmit the HARQ process which is not completed by the return link before switching and corresponding feedback information under the target return link subframe configuration after switching according to the return link switching information;
if the backhaul link before switching has n unfinished uplink HARQ processes, the maximum available uplink HARQ process number k corresponding to the target backhaul link subframe configuration is determined, that is, the number of Un UL subframes is k, when k is greater than or equal to n, the network side selects n Un UL subframes from the k Un UL subframes configured by the target backhaul link subframe configuration, and the scheduling indication RN sequentially carries the n unfinished uplink HARQ processes on the selected Un UL subframes; the RN loads the n unfinished uplink HARQ processes on corresponding n Un UL subframes according to a network side scheduling instruction and transmits the n unfinished uplink HARQ processes to the network side; when k is less than n, the network side selects k in the n unfinished uplink HARQ processes, the scheduling indication RN sequentially bears the selected k unfinished uplink HARQ processes on k Un UL subframes configured by the target backhaul link subframe, and suspends or discards other n-k unfinished uplink HARQ processes; the RN loads the k unfinished uplink HARQ processes on corresponding k Un UL subframes according to a network side scheduling instruction and transmits the k unfinished uplink HARQ processes to the network side, wherein n and k are natural numbers;
further, after the RN bears the n or k unfinished uplink HARQ processes on the corresponding n or k Un UL subframes and transmits the information to the network side, the network side transmits feedback information and/or scheduling retransmission information corresponding to each HARQ process to the RN according to a corresponding time sequence configured by the target backhaul link subframe;
further, when the other n-k unfinished uplink HARQ processes are suspended, the network side transmits the scheduling indication RN of the suspended n-k unfinished uplink HARQ processes on an idle backhaul link uplink subframe, and the RN carries the unfinished n-k uplink HARQ processes on a Un UL subframe configured by a target backhaul link subframe according to the scheduling indication of the network side and transmits the unfinished n-k uplink HARQ processes to the network side.
For another example, when the maximum available uplink HARQ processes corresponding to the original backhaul link subframe configuration and the target backhaul link subframe configuration are equal, that is, when the original backhaul link subframe configuration and the target backhaul link subframe configuration include the same number of Un UL subframes, the RN associates the Un UL subframes corresponding to each uplink HARQ process under the original backhaul link subframe configuration with the Un UL subframes corresponding to each uplink HARQ process under the target backhaul link subframe configuration one by one, and maps and carries the uplink HARQ processes, which are not completed by the backhaul link before switching, on the corresponding Un UL subframes of the target backhaul link subframe configuration according to the correspondence to transmit to the network side;
further, the RN transmits, to the network side, the uplink HARQ process whose backhaul link is not completed before the handover, mapped and carried on the corresponding Un UL subframe configured in the target backhaul link subframe according to the correspondence, and then the network side transmits, to the RN, the feedback information and/or the scheduling retransmission information corresponding to each HARQ process according to the corresponding timing sequence configured in the target backhaul link subframe.
For another example, a backhaul link before switching has n unfinished downlink HARQ processes, a target backhaul link subframe configures a corresponding maximum available downlink HARQ process number k, when k is greater than or equal to n, a network side sequentially schedules the n unfinished downlink HARQ processes, carries the n unfinished downlink HARQ processes on a Un DL subframe for transmission to an RN, and the RN receives the n unfinished downlink HARQ processes on the corresponding Un DL subframe; when k is less than n, the network side selects k downlink HARQ processes from the n unfinished downlink HARQ processes, sequentially schedules the selected k downlink HARQ processes, bears the k unfinished downlink HARQ processes on a Un DL subframe to transmit to RN, and suspends or discards the other n-k unfinished downlink HARQ processes; the RN receives the k unfinished downlink HARQ processes on corresponding Un DL subframes according to the indication of a network side, wherein n and k are natural numbers;
further, after the network side indicates the carried Un DL subframe to the RN, the RN feeds back the feedback information corresponding to each process to the network side according to the corresponding time sequence configured by the target backhaul link subframe;
furthermore, the network side schedules and carries the suspended n-k unfinished downlink HARQ processes on the Un DL subframe configured by the target backhaul link subframe to transmit to the RN, and the RN receives the n-k unfinished downlink HARQ processes on the corresponding Un DL subframe.
For another example, the RN carries feedback information of a backhaul link downlink HARQ process before handover on a network side, where the feedback information is not reported, on a first available Un UL subframe in a target backhaul link subframe configuration after handover, and transmits the feedback information to the network side, where the first available Un UL subframe is a first Un UL subframe having an interval greater than or equal to 4ms with an Un DL subframe where the backhaul link downlink HARQ process is located.
Here, if the pre-handover backhaul downlink HARQ process is carried in Un DL subframe #mIf the first available Un UL subframe in the target backhaul link subframe configuration is Un UL subframe #(m+l)Wherein l is more than or equal to 4.
For example, the network side carries feedback information and/or scheduling retransmission information of a pre-handover backhaul link uplink HARQ process that does not indicate the RN on a first available Un DL subframe in a post-handover target backhaul link subframe configuration, and transmits the feedback information and/or scheduling retransmission information to the RN, where the first available Un DL subframe is a first Un DL subframe having an interval greater than or equal to 4ms from an Un UL subframe in which the backhaul link uplink HARQ process is located.
Here, if the pre-handover backhaul uplink HARQ process is carried in Un UL sub-frame #mIf the first available Un DL subframe in the target backhaul link subframe configuration is Un DL subframe #(m+h)Wherein h is more than or equal to 4.
In the above method, the network side is any one or a combination of more than one of the following: a base station (eNB), a RN as a network side, a cell coordination entity (MCE), a Gateway (GW), a Mobility Management (MME), an Evolved Universal Terrestrial Radio Access Network (EUTRAN), and an Operation Administration and Maintenance (OAM) manager.
In order to implement the foregoing method, the present invention further provides a data processing apparatus for backhaul link subframe configuration switching, which is disposed in a network side and/or an RN, and as shown in fig. 4, the apparatus includes:
a data processing module 41, configured to transmit, according to the backhaul link switching information, the HARQ process and corresponding feedback information that are not completed by the backhaul link before switching under the target backhaul link subframe configuration after switching;
the apparatus further includes a configuration switching module 42 for acquiring backhaul link switching information and notifying the data processing module 41.
The backhaul link switching information comprises original backhaul link subframe configuration, target backhaul link subframe configuration and/or HARQ process transmission factors of a backhaul link before switching;
the HARQ process transmission factors include: the method comprises the steps that the number of uplink HARQ processes which are not completed by a pre-switching return link, the number of downlink HARQ processes which are not completed by the pre-switching return link, feedback information of the downlink HARQ processes of the pre-switching return link which is not reported by an RN on a network side, and feedback information and/or scheduling retransmission information of uplink HARQ processes of the pre-switching return link which is not indicated by the RN on the network side;
when the data processing module 41 is disposed in the network side and the RN, it may be specifically configured to:
the data processing module 41 at the network side has n unfinished uplink HARQ processes according to the backhaul link before switching, the maximum available uplink HARQ process number k corresponding to the target backhaul link subframe configuration, that is, the Un UL subframe number is k, when k is greater than or equal to n, the data processing module 41 at the network side selects n Un UL subframes from the k Un UL subframes configured by the target backhaul link subframe configuration, and the scheduling indication RN sequentially carries the n unfinished uplink HARQ processes on the selected Un UL subframes; a data processing module 41 of the RN transmits the n unfinished uplink HARQ processes carried on the corresponding n Un UL subframes to the network side according to the scheduling indication of the network side; when k is less than n, the data processing module 41 on the network side selects k in the n unfinished uplink HARQ processes, and the scheduling instruction RN sequentially carries the selected k unfinished uplink HARQ processes on k Un UL subframes configured by the target backhaul link subframe, and suspends or discards the other n-k unfinished uplink HARQ processes; a data processing module 41 of the RN transmits the k uncompleted uplink HARQ processes carried on the corresponding k Un UL subframes to the network side according to a scheduling instruction of the network side;
when the data processing module 41 is disposed in the network side and the RN, it may be specifically configured to:
according to feedback information and/or scheduling retransmission information of a backhaul link uplink HARQ process before the RN is not indicated, carrying the feedback information and/or the scheduling retransmission information on a first available Un DL subframe in a target backhaul link subframe configuration after the RN is switched, and transmitting the feedback information and/or the scheduling retransmission information to the RN;
when the data processing module 41 is arranged in the RN, it may be specifically configured to:
the maximum available uplink HARQ process number corresponding to the original backhaul link subframe configuration and the target backhaul link subframe configuration is equal, namely the original backhaul link subframe configuration and the target backhaul link subframe configuration contain the same number of Un UL subframes, Un UL subframes corresponding to each uplink HARQ process under the original backhaul link subframe configuration are in one-to-one correspondence with Un UL subframes corresponding to each uplink HARQ process under the target backhaul link subframe configuration, and the uplink HARQ processes which are not completed by the backhaul link before switching are mapped and carried on the corresponding Un UL subframes of the target backhaul link subframe configuration according to the corresponding relation for transmission to the network side;
when the data processing module 41 is arranged in the RN, it may be specifically configured to:
and according to the feedback information of the downlink HARQ process of the return link before switching of the network side which is not reported, carrying the feedback information on the first available Un UL subframe in the target return link subframe configuration after switching, and transmitting the feedback information to the network side.
The invention also provides a data processing method for switching the subframe configuration of the backhaul link, which comprises the following steps:
the network side and/or the RN abandons all unfinished HARQ processes and/or corresponding feedback information of a return link before switching after switching;
the method comprises the steps that a network side discards all unfinished HARQ processes and/or corresponding feedback information of a backhaul link before switching after switching, specifically, the network side interrupts transmission of all unfinished downlink HARQ processes and/or transmission of corresponding feedback information of an uplink HARQ process of the backhaul link, and establishes a new downlink HARQ process on a Un DL subframe configured by a target backhaul link subframe for data transmission;
the RN discards all unfinished HARQ processes and/or corresponding feedback information of a return link before switching after switching, specifically, the RN interrupts transmission of all unfinished uplink HARQ processes of the return link and/or transmission of corresponding feedback information of a return link downlink HARQ process, and establishes a new uplink HARQ process on a Un UL subframe configured by a target return link subframe for data transmission according to a scheduling indication of a network side;
in order to implement the foregoing method, the present invention further provides a data processing apparatus for backhaul link subframe configuration switching, where the apparatus is disposed in a network side and/or an RN, and includes:
the data processing module is used for discarding all unfinished HARQ processes and/or corresponding feedback information of a backhaul link before switching after switching;
when the data processing module is arranged on a network side, the data processing module is specifically used for interrupting transmission of all unfinished downlink HARQ processes and/or transmission of feedback information corresponding to an uplink HARQ process of a backhaul link before switching, and establishing a new downlink HARQ process for data transmission on a Un DL subframe configured by a target backhaul link subframe;
when the device is arranged at the network side, the device further comprises: a scheduling indication module, configured to schedule and indicate the RN to establish a new uplink HARQ process on a Un UL subframe configured by a target backhaul link subframe for data transmission;
the data processing module is configured in the RN, and is specifically configured to interrupt transmission of all uncompleted uplink HARQ processes of the backhaul link and/or transmission of feedback information corresponding to a backhaul link downlink HARQ process, and establish a new uplink HARQ process on a Un UL subframe configured in a target backhaul link subframe according to a scheduling instruction of a network side to perform data transmission.
The following detailed description of the implementation and principles of the method of the present invention is provided in connection with specific embodiments.
The following embodiments are all TDD systems, and are described with an eNB as a network side, and a Un UL/DLSub-config is indicated by the eNB to an RN.
In the following embodiments, the descriptions are made in the manner of tables 2-6, i.e., the descriptions are made by dividing different TDD UL/DL configs into different lists and corresponding serial numbers.
Example one
In this embodiment, taking TDD UL/DL Config #1 as an example, eNB configuration instructs RN to perform backhaul link subframe configuration switching, and Un UL/DL Sub-Config #2 is used as a target backhaul link subframe configuration.
Before switching, a backhaul link has 1 unfinished uplink HARQ process, and Un UL/DLSub-config #2 configuration includes a Un UL subframe #8, namely the maximum available uplink HARQ process number is 1, then eNB scheduling indication RN carries the unfinished uplink HARQ process on the Un UL subframe #8 after switching, and RN carries the unfinished uplink HARQ process on the Un UL subframe #8 according to the scheduling indication of eNB and transmits the unfinished uplink HARQ process to eNB;
after switching, the eNB transmits the feedback information and/or scheduling retransmission information of the uplink HARQ process which is continuously transmitted on the return link on the corresponding Un DL subframe according to the corresponding time sequence relation of the target return link subframe configuration, and the RN finishes the uplink HARQ process or performs retransmission according to the feedback information or scheduling retransmission information of the eNB.
Example two
In this embodiment, taking TDD UL/DL Config #2 as an example, the original backhaul link subframe is configured as Un UL/DL Sub-Config #3, the eNB configures the indication RN to perform backhaul link subframe configuration switching according to the network load requirement, and uses Un UL/DL Sub-Config #4 as the target backhaul link subframe configuration.
The maximum available uplink HARQ process number k corresponding to the original backhaul link subframe configuration and the target backhaul link subframe configuration is equal to each other, where k is 1, Un UL/DL Sub-config #3 includes one Un UL subframe #7, and Un UL/DL Sub-config #4 includes one Un UL subframe #2, and then the RN maps and carries Un UL subframe #7 in the original backhaul link subframe configuration and Un UL subframe #2 in the target backhaul link subframe configuration one to one, and maps and carries the unfinished uplink HARQ process carried on Un UL subframe #7 in the original backhaul link subframe configuration on Un UL subframe #2 in the target backhaul link subframe configuration to transmit to the eNB.
After switching, the eNB transmits the feedback information and/or scheduling retransmission information of the uplink HARQ process which is continuously transmitted on the return link on the corresponding Un DL subframe according to the corresponding time sequence relation of the target return link subframe configuration, and the RN finishes the uplink HARQ process or performs retransmission according to the feedback information or scheduling retransmission information of the eNB.
EXAMPLE III
In this embodiment, taking TDD UL/DL Config #1 as an example, eNB configuration instructs RN to perform backhaul link subframe configuration switching, and Un UL/DL Sub-Config #2 is used as a target backhaul link subframe configuration.
Before switching, a backhaul link has 2 unfinished uplink HARQ processes, and Un UL/DL Sub-config #2 only includes one Un UL subframe #8, that is, the maximum available uplink HARQ process number is 1, because the original backhaul link uses Un UL/DL Sub-config #4, that is, 2 unfinished uplink HARQ processes of the backhaul link are respectively carried on Un UL subframes #3 and #8, an eNB selects the unfinished uplink HARQ process carried on Un UL subframe #8 under the original backhaul link subframe configuration to continue transmission, that is, after a scheduling indication RN is switched, the unfinished uplink HARQ process is carried on Un UL subframe #8 of Un UL/DL Sub-config #2, and the unfinished uplink HARQ process carried on Un UL subframe #3 before switching is suspended; and the RN carries the selected unfinished uplink HARQ process on the Un UL subframe #8 according to the scheduling instruction of the eNB and transmits the selected unfinished uplink HARQ process to the eNB, and suspends or discards another uplink HARQ process data.
After switching, the eNB transmits the feedback information and/or scheduling retransmission information of the uplink HARQ process which is continuously transmitted on the return link on the corresponding Un DL subframe according to the corresponding time sequence relation of the target return link subframe configuration, and the RN finishes the uplink HARQ process or performs retransmission according to the feedback information or scheduling retransmission information of the eNB.
Further, when the Un UL subframe #8 is free, the eNB schedules, to the RN, an instruction to transmit the pending uplink HARQ process, which is carried on the Un UL subframe #3 before handover, on the Un UL subframe #8, and the RN carries, according to the scheduling instruction of the eNB, the pending uplink HARQ process, which is not carried on the Un UL subframe #8, to the eNB.
Example four
In this embodiment, taking TDD UL/DL Config #4 as an example, eNB configuration instructs RN to perform backhaul link subframe configuration switching, and Un UL/DL Sub-Config #3 is used as a target backhaul link subframe configuration.
Before switching, the backhaul link has 2 unfinished downlink HARQ processes, and the maximum available downlink HARQ process number k, k being 3, corresponds to Un UL/DL Sub-config # 3. The eNB schedules and instructs the RN to switch and then sequentially bear 2 uncompleted downlink HARQ processes on the Un DL subframes #8 and #9, and instructs and transmits the indication to the RN, and the RN receives 2 uncompleted downlink HARQ processes on the Un DL subframes #8 and #9 according to the indication of the eNB.
After switching, the RN feeds back feedback information corresponding to the 2 HARQ processes to the eNB on a Un UL subframe according to a corresponding time sequence configured by a target backhaul link subframe, and the eNB finishes the HARQ processes or dispatches configuration instructions to carry out retransmission according to the feedback information of the RN.
EXAMPLE five
In this embodiment, taking TDD UL/DL Config #4 as an example, eNB configuration instructs RN to perform backhaul link subframe configuration switching, and Un UL/DL Sub-Config #2 is used as a target backhaul link subframe configuration.
Before switching, a backhaul link has 3 unfinished downlink HARQ processes, and the maximum available downlink HARQ process number k, k is 2 corresponding to Un UL/DL Sub-config #2, where the 3 unfinished downlink HARQ processes are respectively carried on Un DL subframes #7, #8, #9 in an original backhaul link subframe configuration, then the eNB selects two processes overlapping with Un DL subframes included in Un UL/DL Sub-config #2, that is, unfinished downlink HARQ processes carried on Un DL subframes #8, #9, and after switching, carries the selected 2 unfinished downlink HARQ processes in turn on Un DL subframes #8, #9 of Un UL/DL Sub-config #2 for transmission to the RN, and hangs up the downlink HARQ processes carried on Un DL subframe #7 in the original backhaul link subframe configuration. And the RN receives 2 unfinished downlink HARQ processes on Un DL subframes #8 and #9 respectively according to the instruction of the eNB.
After switching, the RN feeds back feedback information corresponding to the 2 HARQ processes to the eNB on a Un UL subframe according to a corresponding time sequence configured by a target backhaul link subframe, and the eNB finishes the HARQ processes or dispatches configuration instructions to carry out retransmission according to the feedback information of the RN.
Further, when the Un DL subframe #8 or #9 is idle, the eNB transmits the pending downlink HARQ process carried on the Un DL subframe #7 before the handover to the idle Un DL subframe #8 or #9, and the RN receives the downlink HARQ process and performs feedback.
EXAMPLE six
In this embodiment, taking TDD UL/DL Config #1 as an example, eNB configuration instructs RN to perform backhaul link subframe configuration switching, and Un UL/DL Sub-Config #4 is used as a target backhaul link subframe configuration.
Before switching, the backhaul link uses Un UL/DL Sub-configuration #3, and downlink HARQ processes are respectively transmitted to the RN on Un DL subframe #4 and UnDL subframe #9, the RN generates corresponding ACK/NACK feedback information after receiving the HARQ processes, and at this time, the RN performs a backhaul link subframe configuration switching process according to the configuration indication of the eNB, that is: RN contains 2 Un UL subframes according to Un UL/DL Sub-config # 4: the Un UL subframe #3 and the Un UL subframe #8 can be used for bearing feedback information and reporting the feedback information to the eNB, the subframe interval between the Un UL subframe #3 and the Un DL subframe #4 and Un DL subframe #9 where a downlink HARQ process is located is more than or equal to 4ms, the Un UL subframe #3 is the first available Un UL subframe in the target backhaul link subframe configuration, and the RN bears corresponding ACK/NACK information on the Un UL subframe #3 and reports the ACK/NACK information to the eNB.
EXAMPLE seven
In this embodiment, taking TDD UL/DL Config #2 as an example, eNB configuration instructs RN to perform backhaul link subframe configuration switching, and Un UL/DL Sub-Config #4 is used as a target backhaul link subframe configuration.
Before switching, a backhaul link uses Un UL/DL Sub-config #3, RN transmits an uplink HARQ process to eNB in Un UL subframe #7, eNB generates corresponding ACK/NACK feedback information after receiving the HARQ process, and RN performs a backhaul link subframe configuration switching process according to the configuration indication of eNB, namely: the eNB contains 3 Un DL subframes according to Un UL/DL Sub-config # 4: the Un DL subframe #3, the Un DL subframe #4 and the Un DL subframe #8 can be used for indicating feedback information to the RN, the subframe interval between the Un DL subframe #3 and the Un UL subframe #7 where the uplink HARQ process is located is greater than or equal to 4ms, the Un DL subframe #3 is the first available Un DL subframe in the target backhaul link subframe configuration, and the eNB carries corresponding ACK/NACK information indication on the Un DL subframe #3 to the RN.
Example eight
In this embodiment, taking TDD UL/DL Config #3 as an example, an original backhaul link subframe is configured as Un UL/DLSub-Config #0, eNB configuration indicates RN to perform backhaul link subframe configuration switching, and Un UL/DLSub-Config #1 is used as a target backhaul link subframe configuration.
Before switching, a backhaul link has 2 downlink HARQ processes and 1 uplink HARQ process which are transmitting, after switching, an eNB discards the 2 unfinished downlink HARQ processes before switching, and an RN discards the unfinished uplink HARQ processes; namely, the eNB interrupts the transmission of 2 unfinished downlink HARQ processes and the transmission of corresponding feedback information of 1 uplink HARQ process, and establishes a new HARQ process on a Un DL subframe of Un UL/DL Sub-config #1 for data transmission; and the RN interrupts the transmission of 1 uncompleted uplink HARQ process and the transmission of corresponding feedback information of 2 downlink HARQ processes, and establishes a new uplink HARQ process on a Un UL subframe of Un UL/DL Sub-config #1 for data transmission according to the scheduling indication of the eNB.
By the method, the network side and/or the RN can realize data processing of the configuration switching of the subframe of the return link, and not only backward compatibility is ensured, namely the LTE system is compatible, but also the problems of corresponding HARQ process transmission and feedback information processing after the configuration switching of the subframe of the return link are solved while signaling overhead is not introduced.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, and any modifications, equivalents, improvements, etc. that are within the spirit and principle of the present invention should be included in the present invention.

Claims (13)

1. A data processing method for backhaul link subframe configuration switching is characterized by comprising the following steps:
a network side and/or a relay station (RN) transmits a hybrid automatic repeat request (HARQ) process which is unfinished by a return link before switching and corresponding feedback information under target return link subframe configuration after switching according to the return link switching information; wherein,
the backhaul link handover information includes: switching HARQ process transmission factors of a front backhaul link;
the HARQ process transmission factors of the backhaul link before switching comprise at least one of the following: the RN does not report feedback information of a downlink HARQ process of a return link before switching on the network side, and the network side does not indicate the feedback information and/or scheduling retransmission information of an uplink HARQ process of the return link before switching on the RN;
the HARQ process and corresponding feedback information that are not completed by the backhaul link before the handover are transmitted under the target backhaul link subframe configuration after the handover, and the method includes: the return link before switching has n unfinished uplink HARQ processes, the maximum available uplink HARQ process number corresponding to the target return link subframe configuration after switching is k, when k is larger than or equal to n, the network side selects n uplink (Un) subframes in k return link uplink (Un UL) subframes configured by the target return link subframe configuration, and scheduling indication RN sequentially loads the n unfinished uplink HARQ processes on the selected Un UL subframes; the RN loads the n unfinished uplink HARQ processes on corresponding n Un UL subframes according to the scheduling indication of the network side and transmits the n unfinished uplink HARQ processes to the network side;
when k is less than n, the network side selects k in the n unfinished uplink HARQ processes, the scheduling indication RN sequentially bears the selected k unfinished uplink HARQ processes on k Un UL subframes configured by the target backhaul link subframe, and suspends or discards other n-k unfinished uplink HARQ processes; the RN loads the k unfinished uplink HARQ processes on corresponding k Un UL subframes according to a network side scheduling instruction and transmits the k unfinished uplink HARQ processes to the network side, wherein n and k are natural numbers;
and when the other n-k unfinished uplink HARQ processes are suspended, the RN loads the unfinished n-k uplink HARQ processes on a Un UL subframe configured by a target backhaul link subframe according to a scheduling instruction of the network side and transmits the unfinished n-k uplink HARQ processes to the network side.
2. The data processing method of claim 1, wherein the backhaul link handover information further comprises an original backhaul link subframe configuration and a target backhaul link subframe configuration.
3. The data processing method of claim 2, wherein the HARQ process transmission factors further include at least one of: the number of uplink HARQ processes which are not completed by the switching front backhaul link and the number of downlink HARQ processes which are not completed by the switching front backhaul link.
4. The data processing method according to claim 2, wherein the HARQ process and corresponding feedback information that are not completed in the backhaul link before the handover are transmitted under the target backhaul link subframe configuration after the handover, and are: when the maximum available uplink HARQ process number corresponding to the original backhaul link subframe configuration and the target backhaul link subframe configuration is equal, the RN makes the Un UL subframes corresponding to the uplink HARQ processes under the original backhaul link subframe configuration correspond to the Un UL subframes corresponding to the uplink HARQ processes under the target backhaul link subframe configuration one by one, and maps and bears the unfinished uplink HARQ processes of the backhaul link before switching to the corresponding Un UL subframes of the target backhaul link subframe configuration according to the corresponding relation for transmission to the network side.
5. The data processing method according to claim 1 or 4, wherein the RN transmits the unfinished uplink HARQ process of the backhaul link before the handover to the network side on the corresponding Un UL subframe of the target backhaul link subframe configuration, and the method further comprises: and the network side transmits the feedback information and/or scheduling retransmission information corresponding to each uplink HARQ process to the RN according to the corresponding time sequence configured by the target backhaul link subframe.
6. The data processing method according to claim 2, wherein the HARQ process and corresponding feedback information that are not completed in the backhaul link before the handover are transmitted under the target backhaul link subframe configuration after the handover, and are: the method comprises the steps that a return link before switching is provided with n unfinished downlink HARQ processes, a target return link subframe is configured with a corresponding maximum available downlink HARQ process number k, when k is larger than or equal to n, a network side sequentially schedules the n unfinished downlink HARQ processes, the n unfinished downlink HARQ processes are born on a return link downlink (Un DL) subframe and transmitted to an RN, and the RN receives the n unfinished downlink HARQ processes on the corresponding Un DL subframe;
when k is less than n, the network side selects k downlink HARQ processes from the n unfinished downlink HARQ processes, sequentially schedules the selected k downlink HARQ processes, bears the k unfinished downlink HARQ processes on a Un DL subframe to transmit to RN, and suspends or discards the other n-k unfinished downlink HARQ processes; and the RN receives the k unfinished downlink HARQ processes on corresponding Un DL subframes according to the indication of the network side, wherein n and k are natural numbers.
7. The data processing method of claim 6, wherein the method further comprises: and the network side schedules and bears the suspended n-k unfinished downlink HARQ processes on the Un DL subframes configured by the target backhaul link subframes to transmit to the RN, and the RN receives the n-k unfinished downlink HARQ processes on the corresponding Un DL subframes according to the indication of the network side.
8. The data processing method according to claim 6 or 7, wherein after the network side carries the unfinished downlink HARQ process of the backhaul link before the handover to the RN on the Un DL subframe configured by the subframe of the target backhaul link, the method further comprises: and the RN transmits the feedback information corresponding to each downlink HARQ process to the network side according to the corresponding time sequence configured by the target backhaul link subframe.
9. The data processing method according to claim 2, wherein the HARQ process and corresponding feedback information that are not completed in the backhaul link before the handover are transmitted under the target backhaul link subframe configuration after the handover, and are: and the RN carries the feedback information of the downlink HARQ process of the return link before switching on the unreported network side on the first available Un UL subframe in the target return link subframe configuration after switching, and transmits the feedback information to the network side.
10. The data processing method according to claim 2, wherein the HARQ process and corresponding feedback information that are not completed in the backhaul link before the handover are transmitted under the target backhaul link subframe configuration after the handover, and are: and the network side carries the feedback information and/or scheduling retransmission information of the uplink HARQ process of the return link before the switching of the RN, which is not indicated, on the first available Un DL subframe in the target return link subframe configuration after the switching, and transmits the feedback information and/or scheduling retransmission information to the RN.
11. The data processing method according to claim 1, wherein the network side is any one or a combination of more than one of the following: a base station (eNB), a RN as a network side, a cell coordination entity (MCE), a Gateway (GW), a Mobility Management (MME), an Evolved Universal Terrestrial Radio Access Network (EUTRAN), and an Operation Administration and Maintenance (OAM) manager.
12. A data processing apparatus for backhaul link subframe configuration switching, the apparatus comprising:
the data processing module is used for transmitting the HARQ process which is not completed by the return link before switching and corresponding feedback information under the target return link subframe configuration after switching according to the return link switching information; wherein,
the backhaul link handover information includes: switching HARQ process transmission factors of a front backhaul link;
the HARQ process transmission factors of the backhaul link before switching comprise at least one of the following: the RN does not report feedback information of a downlink HARQ process of a return link before switching on the network side, and the network side does not indicate the feedback information and/or scheduling retransmission information of an uplink HARQ process of the return link before switching on the RN; wherein,
the data processing module is specifically configured to have n unfinished uplink HARQ processes in a backhaul link before switching, the maximum available uplink HARQ process number corresponding to target backhaul link subframe configuration after switching is k, when k is greater than or equal to n, a network side selects n Un UL subframes in k backhaul link uplink (Un UL) subframes configured in the target backhaul link subframe configuration, and a scheduling indication RN sequentially carries the n unfinished uplink HARQ processes on the selected Un UL subframes; the RN loads the n unfinished uplink HARQ processes on corresponding n Un UL subframes according to the scheduling indication of the network side and transmits the n unfinished uplink HARQ processes to the network side;
when k is less than n, the network side selects k in the n unfinished uplink HARQ processes, the scheduling indication RN sequentially bears the selected k unfinished uplink HARQ processes on k Un UL subframes configured by the target backhaul link subframe, and suspends or discards other n-k unfinished uplink HARQ processes; the RN loads the k unfinished uplink HARQ processes on corresponding k Un UL subframes according to a network side scheduling instruction and transmits the k unfinished uplink HARQ processes to the network side, wherein n and k are natural numbers;
and when the other n-k unfinished uplink HARQ processes are suspended, the RN loads the unfinished n-k uplink HARQ processes on a Un UL subframe configured by a target backhaul link subframe according to a scheduling instruction of the network side and transmits the unfinished n-k uplink HARQ processes to the network side.
13. The data processing apparatus of claim 12, further comprising a configuration switching module configured to obtain backhaul link switching information and notify the data processing module.
CN201010576978.4A 2010-12-07 2010-12-07 The data processing method that backhaul link subframe configuration switches and device Active CN102571189B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201010576978.4A CN102571189B (en) 2010-12-07 2010-12-07 The data processing method that backhaul link subframe configuration switches and device
PCT/CN2011/083157 WO2012075897A1 (en) 2010-12-07 2011-11-29 Data processing method and device for backhaul sub-frame configuration handover

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201010576978.4A CN102571189B (en) 2010-12-07 2010-12-07 The data processing method that backhaul link subframe configuration switches and device

Publications (2)

Publication Number Publication Date
CN102571189A CN102571189A (en) 2012-07-11
CN102571189B true CN102571189B (en) 2015-10-28

Family

ID=46206612

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201010576978.4A Active CN102571189B (en) 2010-12-07 2010-12-07 The data processing method that backhaul link subframe configuration switches and device

Country Status (2)

Country Link
CN (1) CN102571189B (en)
WO (1) WO2012075897A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015039313A1 (en) * 2013-09-18 2015-03-26 华为技术有限公司 Method, user equipment, and base station for transmission of hybrid automatic repeat request-acknowledgement
US10097316B2 (en) * 2015-10-05 2018-10-09 Qualcomm Incorporated HARQ handling at inter-beam handover
CN111048141B (en) * 2019-12-15 2021-11-09 浪潮电子信息产业股份有限公司 Error processing method, device, equipment and computer readable storage medium
CN113260018B (en) * 2020-02-07 2023-01-24 维沃移动通信有限公司 System information transmission method, terminal equipment and network equipment

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101166055A (en) * 2006-10-18 2008-04-23 华为技术有限公司 Multi-hop relay method and multi-hop relay system
WO2010026287A1 (en) * 2008-09-08 2010-03-11 Nokia Corporation Adaptive transmission modes for transparent relay
WO2010103048A1 (en) * 2009-03-10 2010-09-16 Nokia Siemens Networks Oy A method and apparatus for use in a communication system including access nodes
CN101867406A (en) * 2009-04-20 2010-10-20 大唐移动通信设备有限公司 Method and system for acquiring subframe positions, evolved node B (eNB) and relay node (RN)
CN101888661A (en) * 2009-05-11 2010-11-17 大唐移动通信设备有限公司 Wireless communication method, system and device
CN102468949A (en) * 2010-11-18 2012-05-23 中兴通讯股份有限公司 Hybrid automatic repeat request (HARQ) transmission method and device
CN102480347A (en) * 2010-11-23 2012-05-30 中兴通讯股份有限公司 Feedback method and device of confirmation information during trunk line subframe configuration switching

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101841846B (en) * 2009-03-17 2012-12-26 电信科学技术研究院 Uplink data transmitting method, system and device in TDD (Time Division Duplex) mode based on relay
CN101873630B (en) * 2009-04-24 2013-04-03 电信科学技术研究院 Wireless communication method, system and device thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101166055A (en) * 2006-10-18 2008-04-23 华为技术有限公司 Multi-hop relay method and multi-hop relay system
WO2010026287A1 (en) * 2008-09-08 2010-03-11 Nokia Corporation Adaptive transmission modes for transparent relay
WO2010103048A1 (en) * 2009-03-10 2010-09-16 Nokia Siemens Networks Oy A method and apparatus for use in a communication system including access nodes
CN101867406A (en) * 2009-04-20 2010-10-20 大唐移动通信设备有限公司 Method and system for acquiring subframe positions, evolved node B (eNB) and relay node (RN)
CN101888661A (en) * 2009-05-11 2010-11-17 大唐移动通信设备有限公司 Wireless communication method, system and device
CN102468949A (en) * 2010-11-18 2012-05-23 中兴通讯股份有限公司 Hybrid automatic repeat request (HARQ) transmission method and device
CN102480347A (en) * 2010-11-23 2012-05-30 中兴通讯股份有限公司 Feedback method and device of confirmation information during trunk line subframe configuration switching

Also Published As

Publication number Publication date
WO2012075897A1 (en) 2012-06-14
CN102571189A (en) 2012-07-11

Similar Documents

Publication Publication Date Title
CN104025684B (en) Information transferring method and device
KR101539775B1 (en) Method for relaying data in wireless communication system based on tdd
EP2538734B1 (en) Method and device for scheduling multiple sub-frames
US9143282B2 (en) Uplink hybrid-ARQ mechanism for cooperative base stations
KR101412051B1 (en) Method, device and system for backhaul link communication in tdd system
EP2730045B1 (en) Relaying multicast data in a wireless network
JP5588513B2 (en) Service carrying method and apparatus, service data receiving method and receiving terminal
CN101753198B (en) Communication method, relay and communication system
CN105210312A (en) Dynamic TDD operation method and apparatus for use in wireless communication system
KR20140054276A (en) Method of and apparatus for informing dynamic uplink and downlink configuration in heterogeneous network
KR20140142231A (en) Method for operating harq to change dynamic resource of wiress resource in wireless communication system, and apparatus therefor
CN101931960B (en) Method for avoid uplink transmission conflict, system and device
US20140307598A1 (en) Communication control device, communication control method, terminal device, program, and communication control system
CN101882985A (en) Indicating method for sending hybrid automatic repeat request (HARQ) and base station thereof
CN102437904B (en) Time division duplex system and downstream feedback method of repeated link thereof
KR20140144189A (en) Method for performing harq for device-to-device communication in wireless communication system and device for same
US20200120663A1 (en) Methods and Apparatuses for Handling of Retransmission Feedback
KR20170137885A (en) Method and apparatus for transmitting data
CN102571189B (en) The data processing method that backhaul link subframe configuration switches and device
CN101754329B (en) Data transmission method, equipment and system
WO2015024248A1 (en) Information transmission method and device
CN105379385B (en) A kind of data transmission method and equipment
CN101790193A (en) Control method, control system, transmitting end device and receiving end device for hybrid automatic repeat request
CN105577333B (en) A kind of method of determining sequential relationship of hybrid-automatic repeat request of relay link
CN103516490A (en) TDD uplink/downlink configuration transmission feedback method and device

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant