WO2008131693A1 - Method and apparatus for transmitting a control signaling - Google Patents

Method and apparatus for transmitting a control signaling Download PDF

Info

Publication number
WO2008131693A1
WO2008131693A1 PCT/CN2008/070822 CN2008070822W WO2008131693A1 WO 2008131693 A1 WO2008131693 A1 WO 2008131693A1 CN 2008070822 W CN2008070822 W CN 2008070822W WO 2008131693 A1 WO2008131693 A1 WO 2008131693A1
Authority
WO
WIPO (PCT)
Prior art keywords
control signaling
field
payload size
data packet
base station
Prior art date
Application number
PCT/CN2008/070822
Other languages
English (en)
French (fr)
Inventor
Xianghua Wang
Xuan Feng
Original Assignee
Huawei Technologies Co., Ltd.
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=39925215&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2008131693(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Priority to EP19188743.9A priority Critical patent/EP3624378A1/en
Priority to ES08734180T priority patent/ES2392566T3/es
Priority to EP08734180A priority patent/EP2077645B1/en
Priority to EP14198081.3A priority patent/EP2863573B1/en
Publication of WO2008131693A1 publication Critical patent/WO2008131693A1/zh
Priority to US12/432,882 priority patent/US8265023B2/en
Priority to US13/544,238 priority patent/US8369278B2/en
Priority to US13/727,932 priority patent/US9036524B2/en
Priority to US14/713,808 priority patent/US20150327221A1/en

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements 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
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H04L1/1819Hybrid protocols; Hybrid automatic repeat request [HARQ] with retransmission of additional or different redundancy
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements 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
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829Arrangements specially adapted for the receiver end
    • H04L1/1835Buffer management
    • H04L1/1845Combining techniques, e.g. code combining
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements 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
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867Arrangements specially adapted for the transmitter end
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements 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
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867Arrangements specially adapted for the transmitter end
    • H04L1/1896ARQ related signaling
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00Traffic control in data switching networks
    • H04L47/10Flow control; Congestion control
    • H04L47/36Flow control; Congestion control by determining packet size, e.g. maximum transfer unit [MTU]

Definitions

  • the present invention relates to the field of wireless communication technologies, and in particular, to a method and apparatus for transmitting control signaling.
  • control signaling sender sends control signaling to notify the control signaling receiver (terminal) of the physical resources, transmission formats and other related information used for transmitting data, and then the control signaling receiver uses the information to receive the downlink.
  • the transmitted data or the data transmitted in the uplink transmission for example, in a Time Division Duplex (TDD) and/or a Frequency Division Duplex (FDD) system, the control signaling sender is required to notify the transmission data. Time slot and / or frequency and related information.
  • HARQ Hybrid Automatic Repeat ReQuest
  • HARQ is a mechanism for retransmitting data packets between a data transmitting end and a data receiving end.
  • One of the data transmitting end and the data receiving end is a base station, and the other is a terminal.
  • the downlink adaptive HARQ is taken as an example to describe the transmission of control signaling.
  • the transmitting end is a base station, and the receiving end is a terminal:
  • the base station notifies the terminal to allocate the physical resource, the HARQ related information, and the like, and transmits the downlink data to the terminal.
  • the control signaling may include a time-frequency resource, a modulation mode, a packet size (Payload Size), and a HARQ process.
  • Information in the related content such as the number, Redundancy Version (RV) and New Data Indicator (NDI);
  • DTX Discontinuous Transmission
  • the terminal will receive the data packet according to the indication in the control signaling. If the terminal correctly receives the data packet, it feeds back a successful acknowledgement (ACK) message to the base station, indicating that the current data packet has been correctly received, and then the base station sends the control signaling corresponding to the next data packet, and sends the next signaling packet. a data packet; if the terminal does not correctly receive the data packet, feedback a data transmission failure acknowledgement (NACK) message to the base station, and then the base station retransmits the control signaling and the data packet that the terminal does not correctly receive;
  • ACK successful acknowledgement
  • NACK data transmission failure acknowledgement
  • the data retransmission of the data packet is generally limited by the number of times.
  • the data packet is processed by the upper layer.
  • the base station each time the base station performs a transmission on a data packet, whether it is an initial transmission or a retransmission, the base station notifies the terminal through downlink control signaling.
  • the fields including the physical resource, NDI, Payload Size, RV, and the like are included.
  • the value of NDI is different from the previous one. Specifically, the value range of NDI is 0 or 1.
  • NDI changes from 0 to 1, or changes from 1 to 1. 0.
  • the value of RV when it is initially transmitted is generally the default value.
  • the value of the NDI is the same as the previous one, and the RV changes.
  • the data packet is recorded as RV1 when it is retransmitted for the first time, and is referred to as RV2 when the second retransmission is performed.
  • the second retransmission is recorded as RV3
  • the fourth retransmission is recorded as RV4, and so on.
  • the Payload Size is the same and does not change. That is to say, the Payload Size only needs to be indicated at the time of initial transmission.
  • Figure 1 shows an example of a signaling flow in a downlink adaptive HARQ process. As shown in Figure 1, the process is as follows:
  • Step 101 The base station sends the control signaling corresponding to the data packet, and performs initial transmission on the data packet (ie, indicated by a broken line 101 in FIG. 1).
  • Step 102 The terminal feeds back DTX.
  • This step is a case where the terminal does not successfully receive control signaling, and then DTX is fed back.
  • Step 103 The base station sends control signaling again, and performs initial transmission of the data packet (ie, indicated by a dotted line 103 in FIG. 1).
  • the NDI, Payload Size, and RV in the control signaling are the same as the previous one, where RV is the default value.
  • Step 104 The terminal feeds back a NACK message to the base station.
  • the terminal successfully receives the control signaling, and the terminal receives the data packet according to the indication in the control signaling. However, the terminal does not successfully receive the initially transmitted data packet, so the NACK is fed back to the base station.
  • Step 105 The base station sends control signaling corresponding to the retransmitted data packet, and retransmits the data packet. (ie as indicated by the dashed line 105 in Figure 1).
  • This step is the first time that the data packet is retransmitted.
  • the NDI 0 in the control signaling, the Payload Size is the same as the initial transmission, and the RV is different from the previous one. In this step, it is RV1.
  • the base station continuously retransmits the control signaling and its corresponding data packet (shown in step 106 and dashed line 106 in FIG. 1), and Payload Size in the retransmission control signaling. The same, and the RV changes until the maximum number of retransmissions is retransmitted. If the terminal has not successfully received the transmission to the maximum number of times, the packet is processed by the upper layer.
  • the base station performs transmission of new packet control signaling and transmits a new data packet.
  • NDI in the control signaling is different from the NDI of the previous data packet
  • the foregoing base station is the transmitting end of the data packet, and the terminal is the receiving end of the data packet.
  • the data transmitting end is the terminal
  • the data receiving end is the base station, that is, the uplink data transmission.
  • the RV in the corresponding control signaling may be a default value, and the default value may not be indicated in the control signaling; and, when the first control signaling transmission has been received by the receiving end, Upon successful reception, that is, the receiving end has obtained the Payload Size, then, when the data packet is retransmitted, it is not necessary to indicate the Payload Size again in the corresponding control signaling.
  • the existing technical solution needs to indicate the RV and the Payload Size in the control signaling when the data packet is initially transmitted and retransmitted, and indicates the RV in the control signaling when the data packet is initially transmitted, and When the retransmission of the data packet indicates the Payload Size in the control signaling, the related information that does not need the indication is completely transmitted, thereby causing waste of physical resources.
  • the embodiments of the present invention provide a method and an apparatus for transmitting control signaling, so as to reduce waste of physical resources when transmitting control signaling.
  • the embodiment of the present invention provides a method for transmitting control signaling, where the method includes: the sender uses the different status of the same field in the control signaling to indicate a packet size Payload Size or a redundancy version RV;
  • the sender sends control signaling indicating the Payload Size or RV on the field.
  • the embodiment of the present invention further provides an apparatus for transmitting control signaling, which is integrated in a base station, and includes a control signaling generating unit 111 and a control signaling sending unit 112, where
  • the control signaling generating unit 111 is configured to generate control signaling, where different states of the same field in the control signaling indicate a packet size Payload Size or a redundancy version RV;
  • the control signaling sending unit 112 is configured to send control signaling indicating Payload Size or RV on the field.
  • the embodiment of the present invention uses the different status of the same field in the control signaling to indicate the Payload Size or the RV.
  • the field is required to be sent according to the requirement.
  • Payload Size or RV which saves the physical resources by eliminating the fields occupied by the information that does not need to be indicated.
  • FIG. 3 is a signaling flow diagram of an embodiment of the method of the present invention in a first scenario
  • FIG. 4 is a signaling flow diagram of an embodiment of the method of the present invention in a second scenario
  • Figure 5 is a signaling flow diagram of an embodiment of the method of the present invention in a third scenario, divided into Figures 5a and 5b;
  • FIG. 6 is a signaling flow chart of an embodiment of the method of the present invention in a fourth scenario, divided into FIG. 6a and FIG. 6b;
  • FIG. 7 is a signaling flow chart of an embodiment of the method of the present invention in a fifth scenario, which is divided into FIG. 7a and FIG. 7b;
  • FIG. 9 is a signaling flow chart of an embodiment of the method of the present invention in a seventh scenario, which is divided into FIG. 9a and FIG. 9b;
  • Figure 11 is a block diagram of an embodiment of the apparatus of the present invention.
  • An embodiment of the present invention provides a method for transmitting control signaling, using the same field in control signaling.
  • the different status indicates the Payload Size or RV, and sends the control signaling indicating the Payload Size or RV on the field, which eliminates the field occupied by the information that does not need to be indicated, thereby saving physical resources.
  • the RV in the corresponding control signaling may be a default value, and the default value may not be indicated in the control signaling; and, when the first control signaling transmission has been successfully received by the receiving end, that is, the receiving end If the Payload Size is obtained, the Payload Size does not need to be indicated again in the corresponding control signaling when the data packet is retransmitted.
  • each time a data packet is transmitted it belongs to one of the initial transmission or the retransmission. Therefore, only one of Payload Size and RV can be indicated in each control signaling sent.
  • Figure 2 shows a flow chart of an embodiment of the method of the present invention. As shown in Figure 2, it includes:
  • Step 201 Indicate Payload Size or RV with different states of the same field in the control signaling. Specifically, it is determined which states of the field in the control signaling are used to refer to the Payload Size, and which states are used to indicate the RV.
  • the Payload Size may be indicated by a part of the status of the field, and the RV is indicated by another part of the status of the field. Since there is a correspondence between physical resources, transmission format (modulation coding mode, MCS) and Payload Size, the corresponding Payload Size can be calculated from the allocated physical resources and transmission format (modulation coding mode, MCS), therefore, in the indication In the case of physical resources, the indication of the Payload Size may be implicitly indicated by an indication of the transport format (Modulation and Coding Mode, MCS).
  • the field indicating that the Payload Size occupies 6 bits, indicating that the field of the RV occupies 2 bits is taken as an example.
  • the RV has 2 to the 2nd power and has 4 states. Therefore, the field indicating the RV needs 2 bits, and the Payload Size has 60 states. Since the 5th power of 2 has only 32 states, 60 states cannot be indicated. There are 64 states in the 6th power of 2, so the field indicating the Payload Size needs 6 bits. Then, a 6-bit field can be used, which indicates the RV with 4 states in a total of 64 states, and the Payload Size is indicated by the other 60 states, so that the Payload Size and the Payload Size can be indicated by only the 6-bit field. RV.
  • the original 2 bits occupied by the RV can be omitted.
  • the four states in which the first four high bits are all 0 indicate four different RVs, that is, the four states of 000000, 000001, 000010, and 000011 indicate RV. 1 to 4; correspondingly, take the remaining 60 states, that is, any of the first 4 highs
  • the remaining 60 states that are not 0 indicate 60 different Payload Sizes.
  • Step 202 The sender sends control signaling indicating Payload Size or RV on the field. That is, the control signaling indicating Payload Size or RV on this field is sent to the receiving end.
  • the Payload Size or the RV is required to indicate the field of the control signaling sent by the time, and the field of the control signaling is filled according to a specific Payload Size or RV.
  • the transmitting end sends the control signaling indicating the Payload Size on the same field to the receiving end; when the transmitting end detects the DTX, the control signal indicating the Payload Size or RV in the same field is sent.
  • the sender detects a NACK, it sends a control signaling indicating the RV on the same field.
  • the transmitting end detects ACK, the initial transmission of the new data packet is performed, and the Payload Size is carried on the field in the corresponding control signaling, and the RV adopts a default value.
  • the transmitting end When an error occurs in the control signaling received by the receiving end, DTX is fed back. Accordingly, after receiving the feedback DTX, the transmitting end will send the control signaling again to start the data packet retransmission.
  • whether the Payload Size or the RV is indicated on the field in the control signaling may be determined according to whether the number of transmissions of the data packet reaches a preset value. When the number of transmissions of the data packet has reached or exceeded a preset value, it may be determined that the terminal has successfully obtained the Payload Size during the previous transmission process, so the transmitting end may indicate the RV on the field in the next signaling transmission. When the number of transmissions of the data packet does not reach the preset value, the control signaling sender indicates the Payload Size on the field in the next signaling transmission.
  • the transmitting end When the receiving end correctly receives the control signaling and does not correctly receive the corresponding data packet, and feeds back the NACK message, the transmitting end detects the NACK, and then sends the control signaling to the receiving end again, where the field in the control signaling indicates the RV. Correspondingly, the transmitting end retransmits the data packet after transmitting the control signaling.
  • the above description is that the transmitting end sends control signaling to the receiving end, and sends a data packet to the receiving end, and the receiving end performs a data packet receiving process according to the control signaling. After the transmitting end sends control signaling to the receiving end, the receiving end may also send data to the transmitting end according to the control signaling.
  • the sending end can be a base station, and correspondingly, the receiving end can be a terminal. That is, in the downlink transmission, the base station sends downlink control signaling to the terminal, and sends a data packet to the terminal, and the terminal receives the data packet sent by the base station according to the downlink control signaling. Similarly, in the uplink transmission, the terminal may send a data packet to the base station according to the downlink control signaling sent by the base station, and perform uplink data transmission.
  • Case 1 is a signaling flow diagram of an embodiment of the method of the present invention in the first scenario.
  • the status indicates the Payload Size
  • the RV is the default value.
  • This specific field is any field in the control signaling that can be used to indicate the Payload Size or RV. In the following application scenarios, the acquisition of a specific field is the same as in the present case.
  • Step 302 The terminal does not successfully receive the data packet and feeds back the NACK.
  • Step 304 The terminal successfully receives the data packet and feeds back an ACK.
  • Case 2 is a signaling flow diagram of an embodiment of the method of the present invention in a second scenario.
  • Step 402 The terminal does not successfully receive the data packet and feeds back the NACK.
  • the terminal did not successfully receive the data packet.
  • Step 405 The terminal does not successfully receive the data packet and feeds back the NACK.
  • the packet Since the maximum number of retransmissions has been reached, the packet is processed by the upper layer.
  • RV is the default value.
  • Case 3 the situation mainly indicates that the information fed back by the terminal is misinterpreted by the base station as NACK, and the retransmission does not reach the maximum number.
  • the ACK is misinterpreted as NACK and the DTX is misinterpreted as The case of NACK.
  • Step 5a02 The terminal does not successfully receive the data packet and feeds back the NACK.
  • Step 5a04 If the terminal successfully receives the data packet, the ACK is fed back, but the base station misinterprets it as NACK.
  • Step 5a06 If the terminal successfully receives the data packet, it feeds back an ACK.
  • the terminal does not successfully receive the control signaling, and the DTX is fed back, but the base station misinterprets the NACK, and the other steps are similar to the case of FIG. 5a, and details are not described herein again.
  • Case 4 the situation mainly indicates that when the maximum number of times is retransmitted, the information fed back by the terminal is misinterpreted by the base station as NACK, as shown in Fig. 6a and Fig. 6b, respectively, where the ACK is misinterpreted as NACK and DTX is misinterpreted as NACK.
  • Step 6a02 If the terminal does not successfully receive the data packet, the NACK is fed back.
  • the terminal did not successfully receive the data packet.
  • Step 6a05 If the terminal successfully receives the data packet, the ACK is fed back, but the base station misinterprets it as NACK. Since the maximum number of retransmissions has been reached, the packet is processed by the upper layer.
  • the status on the specific field above indicates the Payload Size. RV is the default.
  • the terminal does not successfully receive the control signaling, and the DTX is fed back, but the base station misinterprets the NACK, and the other steps are similar to those in FIG. 6a, and details are not described herein again.
  • Case 5 the situation mainly describes the case where the information fed back by the terminal is misinterpreted by the base station as an ACK. At this time, the base station performs transmission of a new data packet. As shown in Fig. 7a and Fig. 7b, the case where NACK is misinterpreted as ACK and DTX is misinterpreted as ACK, respectively.
  • Step 7a02 If the terminal does not successfully receive the data packet, the NACK is fed back.
  • Step 7a04 The terminal does not successfully receive the data packet, and feeds back the NACK, but the base station misinterprets it as an ACK.
  • Step 7a05 The base station performs initial transmission on the control signal corresponding to the new data packet, and sends the new data.
  • step 7b04 the terminal does not successfully receive the control signaling, and the DTX is fed back, but the base station misinterprets the ACK, and the other steps are similar to those in FIG. 7a, and details are not described herein again.
  • Case 6 the situation mainly illustrates the case where the feedback received by the base station is DTX during the initial transmission of the data packet, as shown in FIG. 8, where DTX may be an initial transmission control signaling error, or the initial transmission terminal feedback is NACK.
  • the base station misinterprets it as DTX, or the case where the initial transmission terminal feeds back ACK and the base station misinterprets it as DTX.
  • Step 802 If the terminal does not successfully receive the control signaling, feedback DTX;
  • the step may also be that the terminal successfully receives the control signaling, but the data is not successfully received, and the terminal feeds back the NACK, but is misinterpreted by the base station as DTX, as in step 802';
  • the step may also be that the terminal successfully receives the control signaling, and also successfully receives the data, and the terminal feedback
  • Step 804 If the terminal successfully receives the data packet, the ACK message is fed back.
  • Case 7 The situation is mainly to indicate that during the data packet retransmission process, the feedback received by the base station is DTX, and the maximum number of retransmissions is not reached, the base station sends the control signaling again and retransmits the data packet.
  • NDI 0.
  • the status on the specific field in the control signaling indicates the Payload Size, RV is the default value; or the status on the field indicates the RV.
  • Step 9a02 If the terminal does not successfully receive the data packet, the NACK is fed back;
  • Step 9a04 If the terminal does not successfully receive the control signaling, the DTX is fed back;
  • This step may also be that the terminal does not successfully receive the data packet and feeds back the NACK, but the base station misunderstood
  • This step may also be that the terminal successfully receives the data packet and feeds back the ACK, but the base station misinterprets it as DTX, as in step 9a04" o
  • Step 9a05 In the case of the above 9a04, 9a04' and 9a04", the terminal has correctly obtained the Payload Size before, so in the control signaling sent by the base station in step 9a05, it is not necessary to transmit the Payload Size again, but the redundancy is transmitted.
  • the redundancy version RV2 is indicated using the status on the specific field above, and the data packet is retransmitted (as indicated by the dashed line 9a05 in the figure).
  • Step 9a06 If the terminal receives the packet correctly, it will feed back ACK.
  • Step 9b02 If the terminal does not successfully receive the control signaling, the DTX is fed back, but the base station misinterprets it as NACK.
  • Step 9b04 The terminal feeds back DTX.
  • the terminal may successfully receive control signaling, or may not successfully receive control signaling, but in either case, the terminal cannot successfully receive the retransmitted data packet, because even if the control signaling is successfully received, There is no Payload Size message in the control signaling, and the Payload Size message is not obtained from the previous control signaling, so the terminal cannot successfully receive the data packet.
  • Step 9b06 If the terminal successfully receives the control signaling and the data packet, the ACK is fed back. As illustrated by the cases of 9a and 9b, when the base station receives the feedback as DTX, the base station may indicate the Payload Size or the RV in the status of the control signaling in the next transmission.
  • the base station may determine whether the RV is indicated on the field in the control signaling of the next transmission according to whether the number of transmissions of the data packet reaches a preset value, instead of the regular Payload Size. Generally, when the number of transmissions of the data packet has reached or exceeded a preset value, it may be determined that the terminal has successfully obtained the Payload Size during the previous transmission process, so the base station may be in the field in the next signaling transmission. Carry the RV on it.
  • Case 8 the situation mainly indicates that when the transmission reaches the maximum number of times during the retransmission process, the feedback received by the base station is DTX, and the base station performs transmission of a new data packet.
  • This situation can be as shown in Figure 10:
  • Step 1002 If the terminal does not successfully receive the data packet, the NACK is fed back.
  • the terminal did not successfully receive the data packet.
  • Step 1005 If the terminal does not successfully receive the control signaling, the DTX is fed back;
  • This step may also be that the terminal does not successfully receive the data packet and feeds back the NACK, but the base station misinterprets it as DTX, as in step 1005';
  • This step may also be that the terminal successfully receives the data packet and feeds back the ACK, but the base station misinterprets it as DTX, as in step 1005.
  • the packet is then processed by the higher layer.
  • the eight different scenarios of the application of the method embodiment of the present invention are given above. Although the following data transmission is a scenario in the embodiment, the inventive method is also applicable to an uplink data transmission scenario.
  • the present invention uses the different status of the same field in the control signaling to indicate the Payload Size or RV.
  • the specific field When transmitting the control signaling, use the specific field to indicate the required Payload Size or RV, in this way, saves the physical resources by eliminating the fields occupied by the information that does not need to be indicated.
  • Fig. 11 shows a block diagram of an embodiment of the apparatus.
  • the apparatus embodiment includes a control signaling generating unit 111 and a control signaling transmitting unit 112. among them,
  • the control signaling generating unit 111 is configured to generate control signaling, where different states of the same field in the control signaling indicate a packet size Payload Size or a redundancy version RV;
  • the control signaling sending unit 112 is connected to the control signaling generating unit 111 and configured to send control signaling indicating the Payload Size or RV on the field.
  • the control signaling generating unit 111 includes a control signaling determining unit 1111 and a control signaling field filling unit 1112, where
  • the control signaling determining unit 1111 is configured to determine that the data that needs to be indicated on the field of the sent control signaling is Payload Size or RV;
  • the control signaling field padding unit 1112 is configured to fill in the field of the control signaling according to the Payload Size or RV determined by the control signaling determining unit 1111.
  • the control signaling determining unit 1111 determines, when the initial transmission of the data packet, that the data that needs to be indicated on the field of the control signaling is a Payload Size;
  • the control signaling determining unit 1111 is configured to: when detecting the discontinuous transmission, if the number of transmissions of the data packet reaches or exceeds a preset value, determining that the data that needs to be indicated on the field of the control signaling is an RV; The number of transmissions of the data packet in the retransmission process does not reach a preset value, and the data that needs to be indicated on the field of the control signaling is determined to be a Payload Size;
  • the control signaling determining unit 1111 is configured to determine, when the data transmission fails, that the data to be indicated on the field of the control signaling is an RV.
  • the device is integrated at the transmitting end of the control signaling, such as integrated in the base station.
  • the transmitting end is a base station, and correspondingly, the receiving end is a terminal.
  • the process of implementing the transmission control signaling by using the foregoing apparatus is similar to the description of the foregoing method, and details are not described herein again.
  • the present invention uses the different status of the same field in the control signaling to indicate the Payload Size or RV.
  • the generated field indicates the required Payload to be sent as needed. Size or RV, thus eliminating the fields occupied by the information that does not need to be instructed, thereby saving physical resources.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)

Description

发送控制信令的方法和装置
本申请要求于 2007 年 4 月 27 日提交中国专利局、 申请号为 200710097679.0、 发明名称为"发送控制信令的方法和装置 "的中国专利申请的 优先权, 其全部内容通过引用结合在本申请中。
技术领域
本发明涉及无线通信技术领域, 特别涉及一种发送控制信令的方法和装 置。
背景技术
无线通信系统中,控制信令发送端发送控制信令, 以通知控制信令接收端 (终端)传输数据所采用的物理资源、传输格式等相关信息, 进而控制信令接 收端利用这些信息接收下行传输的数据或发送上行传输的数据 ,例如在时分双 工 ( Time Division Duplex, TDD )和 /或频分双工 ( Frequency Division Duplex, FDD ) 系统中, 需要控制信令发送端通知传输数据所采用的时隙和 /或频率及 相关的信息。
以下以采用混合自动重传请求( Hybrid Automatic Repeat reQuest , HARQ ) 的系统中控制信令的传输进行说明。 HARQ是关于数据发送端和数据接收端之 间进行数据包重传的机制,数据发送端和数据接收端中一个是基站, 另一个是 终端。 以下以采用下行自适应 HARQ为例说明控制信令的传输情况, 其中发 送端是基站, 接收端是终端:
基站通过下行控制信令通知终端分配的物理资源、 HARQ相关信息等,并 传输下行数据到终端; 其中, 控制信令具体可以包括时频资源、 调制方式、 数 据包大小 (Payload Size ), HARQ进程号、 冗余版本(Redundancy Version, RV )和新数据指示(New Data Indicator, NDI )等相关内容中的信息;
终端接收的控制信令如果发生错误, 则执行不连续发射(Discontinuous Transmission, DTX ), 即向基站反馈 DTX。 如果基站检测到终端反馈的 DTX, 将再次发送下行控制信令, 并传输数据包;
如果终端接收的控制信令是正确的,终端会按照控制信令中的指示接收数 据包。 如果终端正确接收数据包, 则反馈成功应答(ACK )消息到基站, 表明 当前数据包已正确接收, 进而基站发送下一数据包对应的控制信令, 并发送下 一数据包; 如果终端没有正确接收数据包,则反馈数据传输失败应答(NACK ) 消息到基站, 进而基站重传控制信令和终端没有正确接收的数据包;
数据发送端对数据包的重传一般有次数限制,当重传达到最大次数而数据 接收端仍没有成功接收, 则将该数据包交由高层进行处理。
在上述过程中, 基站对数据包进行的每一次传输, 无论是初传还是重传, 基站都要通过下行控制信令通知终端。
在发送的控制信令中, 包括指示物理资源、 NDI、 Payload Size, RV等字 段。 当新数据包初传时, NDI的值与前次的不同, 具体的, NDI的取值范围为 0或 1, 则新数据包初传时, NDI由 0变为 1, 或由 1变为 0。 RV在初次传输 时取值一般为默认值。 当进行的是数据包的重传时, NDI的值与前次的相同, RV发生变化, 这里, 数据包第一次重传时记为 RV1 , 第二次重传时记为 RV2, 第三次重传时记为 RV3, 第四次重传时记为 RV4, 等等。 在同一数据包的初 传和重传过程中, Payload Size是相同的, 并不发生改变, 也就是说, Payload Size只需在初传时进行指示。
图 1示出了下行自适应 HARQ过程中信令流程的一个示例。 如图 1中所 示, 过程如下:
步骤 101: 基站发送数据包对应的控制信令, 并对数据包进行初传(即图 1中虚线 101所示)。 其中控制信令指示 NDI, 设 NDI=0, 并指示 Payload Size 和 RV, RV可以采用默认值。
步骤 102: 终端反馈 DTX。
该步骤是终端没有成功接收控制信令的情况, 则反馈 DTX。
步骤 103: 基站再次发送控制信令, 并对数据包进行初传(即图 1中虚线 103所示)。 其中, 控制信令中的 NDI, Payload Size, RV与前次相同, 其中 RV为默认值。
步骤 104: 终端反馈 NACK消息到基站。
该步骤是终端成功接收了控制信令的情况,则终端按照控制信令中的指示 接收数据包, 但是, 终端没有成功接收初传的数据包, 因此反馈 NACK到基 站。
步骤 105: 基站发送重传的数据包对应的控制信令, 并对数据包进行重传 (即图 1中虚线 105所示)。
该步骤是第一次对数据包进行重传, 控制信令中的 NDI=0 , Payload Size 与初传的相同, 而 RV与前次不同, 本步骤中为 RV1。
之后, 如果终端仍没有正确接收数据包, 则基站对控制信令及其对应的数 据包不断进行重传(图 1中步骤 106和虚线 106所示), 在重传的控制信令中 Payload Size相同, 而 RV发生变化, 直至重传达到最大重传次数, 如果传输 至最大次数终端仍没有成功接收, 则将数据包交由高层处理。
进一步地, 基站进行新数据包控制信令的发送, 并传输新数据包。 如步骤 107所示和虚线 107所示, 其中, 控制信令中的 NDI与前一数据包的 NDI不 同, NDI=1 , 并指示 Payload Size和 RV, 其中 RV采用默认值。
需要指出的是, 上述基站为数据包的发送端, 终端为数据包的接收端。 当 然, 也可以是数据发送端为终端, 数据接收端为基站, 即为上行数据传输的情 况。
可见, 上述过程中, 进行数据包初传时, 对应的控制信令中的 RV可以为 默认值, 则该默认值可以不在控制信令中指示; 而且, 当首次控制信令传输已 由接收端成功接收时, 即接收端已获得 Payload Size, 那么, 在数据包重传时, 在对应的控制信令中没有必要再次指示 Payload Size。 也就是说, 现有的技术 方案,在数据包的初传和重传时,都需要在控制信令中指示 RV和 Payload Size, 对于数据包的初传时在控制信令中指示 RV, 以及对于数据包的重传时在控制 信令中指示 Payload Size, 完全是传输了不需要指示的有关信息, 从而造成了 物理资源的浪费。 发明内容
本发明实施例提供一种发送控制信令的方法和装置,以实现发送控制信令 时减少物理资源的浪费。
为此, 本发明实施例提供一种发送控制信令的方法, 所述方法包括: 发送端用控制信令中的同一字段的不同状态指示数据包大小 Payload Size 或冗余版本 RV;
发送端发送所述字段上指示 Payload Size或 RV的控制信令。 相应的, 本发明实施例还提供一种发送控制信令的装置, 集成在基站中, 包括控制信令生成单元 111和控制信令发送单元 112, 其中,
控制信令生成单元 111, 用于生成控制信令, 所述控制信令中的同一字段 的不同状态指示数据包大小 Payload Size或冗余版本 RV;
控制信令发送单元 112, 用于发送所述字段上指示 Payload Size或 RV的 控制信令。
由以上本发明实施例提供的技术方案可见,本发明实施例采用控制信令中 的同一字段的不同状态指示 Payload Size或 RV, 在发送控制信令时, 所述字 段上根据需要指示所需发送的 Payload Size或 RV, 这样, 省去了不需要指示 的信息所占用的字段, 从而节省了物理资源。 附图说明
图 1为现有技术中混合自动重传请求的示例性信令流程图;
图 2为本发明方法实施例的流程图;
图 3为在第一种情形下的本发明方法实施例的信令流程图;
图 4为在第二种情形下的本发明方法实施例的信令流程图;
图 5为在第三种情形下的本发明方法实施例的信令流程图, 分为图 5a和 图 5b;
图 6为在第四种情形下的本发明方法实施例的信令流程图, 分为图 6a和 图 6b;
图 7为在第五种情形下的本发明方法实施例的信令流程图, 分为图 7a和 图 7b;
图 8为在第六种情形下的本发明方法实施例的信令流程图;
图 9为在第七种情形下的本发明方法实施例的信令流程图, 分为图 9a和 图 9b;
图 10为在第八种情形下的本发明方法实施例的信令流程图;
图 11为本发明装置实施例的框图。
具体实施方式
本发明实施例提供了一种发送控制信令的方法,用控制信令中的同一字段 的不同状态指示 Payload Size或 RV, 发送该字段上指示 Payload Size或 RV的 控制信令, 省去了不需要指示的信息所占用的字段, 从而节省了物理资源。
在数据包初传时, 对应的控制信令中的 RV可以为默认值, 该默认值可以 不在控制信令中指示; 而且, 当首次控制信令传输已由接收端成功接收时, 即 接收端已获得 Payload Size, 则在数据包重传时, 不需要在对应的控制信令中 再次指示 Payload Size。 事实上, 每一次数据包的发送都属于初传或重传中的 一种, 因此, 每一次发送的控制信令中可以仅指示 Payload Size和 RV中的一 种。
基于此, 下面介绍本发明提供的具体实施例。 为了使本技术领域的人员更 好地理解本发明方案, 下面将结合附图和实施方式作进一步的详细说明。
图 2示出了本发明方法实施例的流程图。 如图 2所示, 包括:
步骤 201: 用控制信令中的同一字段的不同状态指示 Payload Size或 RV。 具体的, 确定控制信令中的该字段的哪些状态用来指 Payload Size, 哪些 状态用来指示 RV,可以是用该字段的一部分状态指示 Payload Size, 用该字段 的另一部分状态指示 RV。 由于物理资源、 传输格式(调制编码方式, MCS )、 Payload Size之间存在对应关系, 从分配的物理资源和传输格式(调制编码方 式, MCS ) 即可计算出相应的 Payload Size, 因此, 在指示了物理资源的情况 下, 对 Payload Size的指示可以是通过对传输格式(调制编码方式, MCS )的 指示来隐式指示的。
以指示 Payload Size的字段占用 6比特, 指示 RV的字段占用 2比特为例 来说明。 该例中, RV有 2的 2次方共 4个状态, 因此指示 RV的字段需要 2 比特, 而 Payload Size有 60个状态, 由于 2的 5次方只有 32个状态, 不能指 示 60个状态, 而 2的 6次方共 64个状态, 因此指示 Payload Size的字段需要 6比特。 则, 可以用一个 6比特的字段, 其所能指示的总共 64个状态中用 4 个状态指示 RV, 用其它 60个状态指示 Payload Size, 这样, 仅用 6比特的字 段就可以指示 Payload Size和 RV。 而原有的 RV占用的 2比特可以省去。
较简单地, 为了易于区分, 6比特组成的字段中, 可取前 4个高位皆为 0 的 4种状态指示 4种不同的 RV, 即用 000000、 000001、 000010、 000011这四 个状态指示 RV为 1到 4; 相应地, 取其余 60中状态, 即前 4个高位中任一位 不为 0的其余 60种状态指示 60种不同的 Payload Size。 这样, 在收到控制信 令时, 可以仅通过检测状态代码来判断该控制信令中的所述字段指示的是 Payload Size还是 RV。
由上述的例子可以得到,用控制信令中的同一字段的不同状态可以实现指 示 Payload Size和 RV的所有取值。
步骤 202: 发送端发送该字段上指示 Payload Size或 RV的控制信令。 也 就是说, 向接收端发送该字段上指示 Payload Size或 RV的控制信令。
具体的, 确定该次发送的控制信令的字段上需要指示的是 Payload Size还 是 RV,以及根据具体的 Payload Size或 RV,填充控制信令的所述字段并发送。 比如,当进行数据包的初传时,发送端向接收端发送该同一字段上指示 Payload Size的控制信令;当发送端检测到 DTX时,发送该同一字段上指示 Payload Size 或 RV的控制信令; 当发送端检测到 NACK时,发送该同一字段上指示 RV的 控制信令。
当发送端检测为 ACK时, 进行新数据包的初传, 则其对应的控制信令中 的所述字段上承载 Payload Size, RV采用默认值。
当接收端接收的控制信令发生错误时, 反馈 DTX, 相应地, 发送端接收 到反馈的 DTX后, 将再次发送控制信令, 启动数据包重传。 较一般地, 可以 根据该数据包的传输次数是否达到预设值来确定控制信令中所述字段上指示 Payload Size还是 RV。 当该数据包的传输次数已达到或超过预设值时,可以判 定在之前的传输过程中终端已经成功获得了 Payload Size, 因此发送端可以在 下一次的信令传输中在所述字段上指示 RV; 当该数据包的传输次数没有达到 预设值时, 控制信令发送端在下一次的信令传输中在所述字段上指示 Payload Size。
当接收端正确接收控制信令而没有正确接收相应的数据包, 反馈 NACK 消息, 发送端检测为 NACK后, 向接收端再次发送控制信令, 其中, 控制信 令中的所述字段上指示 RV, 相应地, 发送端在发送控制信令后重传数据包。
以上描述的是发送端向接收端发送控制信令, 并向接收端发送数据包,接 收端根据控制信令进行数据包的接收过程。 发送端在向接收端发送控制信令 后, 接收端也可以根据控制信令向发送端发送数据。 需要说明的是, 上述的发 送端可以为基站, 相应的, 接收端可以为终端。 也就是, 在下行传输中, 基站 向终端发送下行控制信令, 并向终端发送数据包,终端根据下行控制信令接收 基站发送的数据包。 同样, 在上行传输中, 即终端可以根据基站发送的下行控 制信令, 向基站发送数据包, 进行上行数据传输。
下面以下行数据传输为例, 说明上述方法实施例在不同的情形下的应用。 情形一, 如图 3所示, 为在第一种情形下的本发明方法实施例的信令流程 图。
步骤 301: 基站初始发送数据包对应的控制信令及所述数据包(图 3中数 据包的发送为虚线 301所示), 其中控制信令中 NDI=0, 利用控制信令中特定 字段上的状态指示 Payload Size, RV为默认值, 该特定字段为控制信令中可以 用于指示 Payload Size或 RV的任何字段, 在以下的应用情形中, 特定字段的 获取与本情形中相同。
步骤 302: 终端没有成功接收数据包, 反馈 NACK。
步骤 303:基站再次发送控制信令,重传数据包(如图 3中虚线 303所示), 其中控制信令中 NDI=0, 利用上述特定字段上的状态指示冗余版本 RV1。
步骤 304: 终端成功接收数据包, 反馈 ACK。
步骤 305: 基站对新数据包(即下一数据包)的控制信令及所述新数据包 进行初传, 其中控制信令中 NDI=1 , 利用上述特定字段上的状态指示 Payload Size, RV为默认值。
情形二, 如图 4所示, 为在第二种情形下的本发明方法实施例的信令流程 图。
步骤 401: 基站初始发送数据包对应的控制信令, 并发送所述数据包(图 4中虚线 401所示), 其中控制信令中 NDI=0, 利用控制信令中特定字段上的 状态指示 Payload Size, RV为默认值。
步骤 402: 终端没有成功接收数据包, 反馈 NACK。
步骤 403: 基站再次发送控制信令, 重传数据包(图 3中虚线 403所示), 其中控制信令中 NDI=0, 利用上述特定字段上的状态指示冗余版本 RV1。
之后的重传过程中, 终端都没有成功接收数据包。
步骤 404:基站最后一次发送该数据包对应的控制信令,并重传数据包(图 3中虚线 404所示), 其中控制信令中 NDI=0, 利用上述特定字段上的状态指 示冗余版本 RV— max, 这里 RV— max指示最大重传次数时的 RV。
步骤 405: 终端没有成功接收数据包, 反馈 NACK。
由于已达到最大重传次数, 因此该数据包交由高层处理。
步骤 406: 基站对新数据包(下一数据包)对应的控制信令进行初传, 并 发送所述新数据包,其中控制信令中 NDI=1,利用上述特定字段上的状态指示 Payload Size , RV为默认值。
情形三,该情形主要说明终端反馈的信息被基站误解为 NACK,且重传没 有达到最大次数, 如图 5a和图 5b所示, 分别是 ACK被误解为 NACK和重传 过程中 DTX被误解为 NACK的情况。
图 5a的情况:
步骤 5a01 : 基站初始发送数据包对应的控制信令, 并发送所述数据包(如 该图中虚线 5a01所示),其中控制信令中 NDI=0, 利用控制信令中特定字段上 的状态指示 Payload Size, RV为默认值。
步骤 5a02: 终端没有成功接收数据包, 反馈 NACK。
步骤 5a03: 基站再次发送控制信令, 并重传数据包(如该图中虚线 5a03 所示), 其中控制信令中 NDI=0, 利用上述特定字段上的状态指示冗余版本 RV1。
步骤 5a04:若终端成功接收数据包,则反馈 ACK,但是基站误解为 NACK。 步骤 5a05: 基站再次发送控制信令, 并重传数据包(如该图中虚线 5a05 所示), 其中控制信令中 NDI=0, 利用上述特定字段上的状态指示冗余版本 RV2。
步骤 5a06: 若终端成功接收数据包, 则反馈 ACK。
图 5b的情况,在 5b04步骤中,是终端没有成功接收控制信令,反馈 DTX, 但是基站误解为 NACK, 而其它步骤与图 5a的情况类似, 在此不再赘述。
情形四, 该情形主要说明重传达到最大次数时, 终端反馈的信息被基站误 解为 NACK, 如图 6a和图 6b所示, 分别是 ACK被误解为 NACK和 DTX被 误解为 NACK的情况。
图 6a的情况: 步骤 6a01 : 基站初始发送数据包对应的控制信令, 并发送所述数据包(如 该图中虚线 6a01所示),其中控制信令中 NDI=0, 利用控制信令中特定字段上 的状态指示 Payload Size。 RV为默认值。
步骤 6a02: 若终端没有成功接收数据包, 则反馈 NACK。
步骤 6a03: 基站再次发送控制信令, 重传数据包(如该图中虚线 6a03所 示),其中控制信令中 NDI=0,利用上述特定字段上的状态指示冗余版本 RV1。
之后的重传过程中, 终端都没有成功接收数据包。
步骤 6a04: 基站最后一次发送该数据包对应的控制信令, 重传数据包(如 该图中虚线 6a04所示),其中控制信令中 NDI=0, 利用上述特定字段上的状态 指示冗余版本 RV— max。
步骤 6a05:若终端成功接收数据包,则反馈 ACK,但是基站误解为 NACK。 由于已达到最大重传次数, 因此该数据包交由高层处理。
步骤 6a06: 基站对新数据(下一数据包) 包对应的控制信令进行初传, 并发送所述新数据包(如该图中虚线 6a06所示), 其中控制信令中 NDI=1 , 利 上述特定字段上的状态指示 Payload Size。 RV为默认值。
图 6b的情况,在 6b05步骤中,是终端没有成功接收控制信令,反馈 DTX, 但是基站误解为 NACK, 而其它步骤与图 6a类似, 在此不再赘述。
情形五, 该情形主要说明当终端反馈的信息被基站误解为 ACK的情况, 此时, 基站进行新数据包的传输。 如图 7a和图 7b所示, 分别是 NACK被误 解为 ACK和 DTX被误解为 ACK的情况。
图 7a的情况:
步骤 7a01 : 基站初始发送数据包对应的控制信令, 并发送数据包(如该 图中虚线 7a01所示),其中控制信令中 NDI=0, 利用控制信令中特定字段上的 状态指示 Payload Size, RV为默认值。
步骤 7a02: 若终端没有成功接收数据包, 则反馈 NACK。
步骤 7a03: 基站再次发送控制信令, 重传数据包(如该图中虚线 7a03所 示),其中控制信令中 NDI=0,利用上述特定字段上的状态指示冗余版本 RV1。
步骤 7a04:终端没有成功接收数据包,反馈 NACK,但是基站误解为 ACK。 步骤 7a05: 基站对新数据包对应的控制信进行初传, 并发送所述新数据 包(如该图中虚线 7a05所示), 其中控制信令中 NDI=1 , 利用上述特定字段上 的状态指示 Payload Size, RV为默认值。
图 7b的情况,在 7b04步骤中,是终端没有成功接收控制信令,反馈 DTX, 但是基站误解为 ACK, 而其它步骤与图 7a类似, 在此不再赘述。
情形六, 该情形主要说明数据包初传过程中, 基站接收到的反馈为 DTX 的情况, 如图 8, 其中, DTX可以是初传的控制信令错误, 或是初传终端反馈 为 NACK而基站误解为 DTX, 或是初传终端反馈为 ACK而基站误解为 DTX 的情况。
步骤 801: 基站初始发送数据包对应的控制信令, 并发送所述数据包(如 该图中虚线 801所示), 其中控制信令中 NDI=0, 利用控制信令中特定字段上 的状态指示 Payload Size。 RV为默认值。
步骤 802: 若终端没有成功接收控制信令, 则反馈 DTX;
该步骤也可以是终端成功接收了控制信令,但是没有成功接收数据, 终端 反馈 NACK, 但是被基站误解为 DTX, 如步骤 802';
该步骤还可以是终端成功接收了控制信令, 也成功接收了数据, 终端反馈
ACK, 但是被基站误解为 DTX, 如步骤 802〃。
步骤 803:基站再次发送控制信令,重传数据包(如该图中虚线 803所示), 其中控制信令中 NDI=0,利用上述特定字段上的状态指示 Payload Size。 RV为 默认值。
步骤 804: 若终端成功接收数据包, 则反馈 ACK消息。
情形七, 该情形主要是说明数据包重传过程中, 基站收到的反馈为 DTX, 且没有达到最大重传次数, 则基站再次发送控制信令并重传数据包,控制信令 中 NDI=0,在利用控制信令中特定字段上的状态指示 Payload Size, RV为默认 值; 或是所述字段上的状态指示 RV。
根据具体情况的不同, 可以分为图 9a和 9b。
图 9a的情况:
步骤 9a01 : 基站初始发送数据包对应的控制信令, 并发送所述数据包(如 该图中虚线 9a01所示),其中控制信令中 NDI=0, 利用上述特定字段上的状态 指示 Payload Size。 RV为默认值。 步骤 9a02: 若终端没有成功接收数据包, 则反馈 NACK;
步骤 9a03: 基站再次发送控制信令, 重传数据包(如该图中虚线 9a03所 示),其中控制信令中 NDI=0,利用上述特定字段上的状态指示冗余版本 RV1。
步骤 9a04: 若终端没有成功接收控制信令, 则反馈 DTX;
该步骤也可以是终端没有成功接收数据包,反馈 NACK,但是基站误解为
DTX, 如步骤 9a04';
该步骤还可以是终端成功接收数据包,反馈 ACK,但是基站误解为 DTX, 如步骤 9a04"o
步骤 9a05: 由于上述 9a04、 9a04'和 9a04"的情况中, 终端之前都已正确 获得 Payload Size, 因此在步骤 9a05中基站发送的控制信令中, 不需要再次发 送 Payload Size, 而是发送冗余版本 RV2, 则利用上述特定字段上的状态指示 冗余版本 RV2, 并重传数据包(如该图中虚线 9a05所示)。
步骤 9a06: 若终端正确接收数据包, 则反馈 ACK。
图 9b的情况:
步骤 9b01: 基站初始发送数据包对应的控制信令, 并发送所述数据包(如 该图中虚线 9b01所示),其中控制信令中 NDI=0,利用控制信令中特定字段上 的状态指示 Payload Size。 RV为默认值。
步骤 9b02: 若终端没有成功接收控制信令, 则反馈 DTX, 但是基站误解 为 NACK。
步骤 9b03: 基站再次发送控制信令, 重传数据包(如该图中虚线 9b03所 示),其中控制信令中 NDI=0,利用上述特定字段上的状态指示冗余版本 RV1。
步骤 9b04: 终端反馈 DTX。
该步骤中, 终端可能成功接收控制信令, 也可能没有成功接收控制信令, 但是不论是哪种情况, 终端都不能成功接收重传的数据包, 因为即使是成功接 收了控制信令, 但是该控制信令中没有 Payload Size消息, 而且也没有从之前 的控制信令中获得 Payload Size消息, 因此终端无法成功接收数据包。
步骤 9b05: 基站再次发送控制信令, 重传数据包(如该图中虚线 9b05所 示), 其中控制信令中 NDI=0, 利用上述特定字段上的状态指示 Payload Size。 RV为默认值。 步骤 9b06: 若终端成功接收控制信令和数据包, 则反馈 ACK。 由 9a和 9b的情况说明, 基站在收到反馈为 DTX时, 可以在下一次发送 的控制信令中在所述字段上的状态指示 Payload Size, 也可以指示 RV。
基站可以根据该数据包的传输次数是否达到预设值来确定下一次传输的 控制信令中所述字段上是否指示 RV, 而不是常规的 Payload Size。 较一般地, 当该数据包的传输次数已达到或超过预设值时,可以判定在之前的传输过程中 终端已经成功获得了 Payload Size, 因此基站可以在下一次的信令传输中在所 述字段上承载 RV。
情形八, 该情形主要说明在重传过程中传输达到最大次数时,基站收到的 反馈为 DTX, 则基站进行新数据包的传输。 该情形可以如图 10所示:
步骤 1001: 基站初始发送数据包对应的控制信令, 并发送所述数据包(如 该图中虚线 1001所示),其中控制信令中 NDI=0,利用控制信令中特定字段上 的状态指示 Payload Size。 RV为默认值。
步骤 1002: 若终端没有成功接收数据包, 则反馈 NACK。
步骤 1003: 基站再次发送控制信令, 重传数据包(如该图中虚线 1003所 示),其中控制信令中 NDI=0,利用上述特定字段上的状态指示冗余版本 RV1。
之后的重传过程中, 终端都没有成功接收数据包。
步骤 1004: 基站最后一次发送该数据包对应的控制信令, 重传数据包(如 该图中虚线 1004所示),其中控制信令中 NDI=0,利用上述特定字段上的状态 指示冗余版本 RV— max。
步骤 1005: 若终端没有成功接收控制信令, 则反馈 DTX;
该步骤也可以是终端没有成功接收数据包,反馈 NACK,但是基站误解为 DTX, 如步骤 1005';
该步骤还可以是终端成功接收数据包,反馈 ACK,但是基站误解为 DTX, 如步骤 1005"。
无论哪种情况, 之后都将该数据包交由高层处理。
步骤 1006: 基站对新数据包对应的控制信令进行初传, 并发送所述新数 据包,其中控制信令中 NDI=1 , 利用上述特定字段上的状态指示 Payload Size。 RV为默认值。 以上给出了本发明方法实施例应用的八种不同情形,虽然实施例中以下行 数据传输为场景, 但是该发明方法同样适用于上行数据传输场景。
由以上提供的方法实施例可见,本发明采用控制信令中的同一字段的不同 状态指示 Payload Size或 RV, 在发送控制信令时, 利用上述特定字段上根据 需要指示所需发送的 Payload Size或 RV, 这样, 省去了不需要指示的信息所 占用的字段, 从而节省了物理资源。
以下介绍本发明提供的一种发送控制信令的装置实施例, 图 11示出了该 装置实施例的框图。该装置实施例包括控制信令生成单元 111和控制信令发送 单元 112。 其中,
控制信令生成单元 111 , 用于生成控制信令, 所述控制信令中的同一字段 的不同状态指示数据包大小 Payload Size或冗余版本 RV;
控制信令发送单元 112, 与控制信令生成单元 111相连, 用于发送所述字 段上指示 Payload Size或 RV的控制信令。
所述控制信令生成单元 111 包括控制信令确定单元 1111和控制信令字段 填充单元 1112, 其中,
控制信令确定单元 1111 , 用于确定发送的控制信令的所述字段上需要指 示的数据是 Payload Size或 RV;
控制信令字段填充单元 1112, 用于根据控制信令确定单元 1111 确定的 Payload Size或 RV, 填充所述控制信令的所述字段。
所述控制信令确定单元 1111在进行数据包的初传时, 确定控制信令的所 述字段上需要指示的数据是 Payload Size;
所述控制信令确定单元 1111 , 用于在检测为不连续发射时, 如果该数据 包的传输次数达到或超过预设值,确定控制信令的所述字段上需要指示的数据 是 RV; 如果重传过程中该数据包的传输次数没有达到预设值, 确定控制信令 的所述字段上需要指示的数据是 Payload Size;
所述控制信令确定单元 1111用于在检测为数据传输失败时, 确定控制信 令的所述字段上需要指示的数据是 RV。
该装置集成在所述控制信令的发送端, 比如集成在基站中。
所述发送端为基站, 相应的, 接收端为终端。 利用上述装置实现发送控制信令的过程与前面方法的描述类似,在此不再 赘述。
由以上本发明提供的实施例可见,本发明采用控制信令中的同一字段的不 同状态指示 Payload Size或 RV, 在发送控制信令时, 生成的所述字段上根据 需要指示所需发送的 Payload Size或 RV, 这样, 省去了不需要指示的信息所 占用的字段, 从而节省了物理资源。
虽然通过实施例描绘了本发明, 本领域普通技术人员知道, 本发明有许多 变形和变化而不脱离本发明的精神,希望所附的权利要求包括这些变形和变化 而不脱离本发明的精神。

Claims

权 利 要 求
1、 一种发送控制信令的方法, 其特征在于, 包括:
发送端用控制信令中的同一字段的不同状态指示数据包大小 Payload Size 或冗余版本 RV;
发送端发送所述字段上指示 Payload Size或 RV的控制信令。
2、 如权利要求 1所述的方法, 其特征在于, 所述发送端发送所述字段上 指示 Payload Size或 RV的控制信令具体包括:
确定所述字段上指示的是 Payload Size或 RV;
根据所述确定的 Payload Size或 RV, 填充所述字段并发送。
3、 如权利要求 1或 2所述的方法, 其特征在于, 所述用控制信令中的同 一字段的不同状态表示 Payload Size或 RV由以下方式实现:
用同一字段的部分状态指示不同的 Payload Size, 用所述同一字段的其余 状态指示不同的 RV。
4、 如权利要求 1所述的方法, 其特征在于, 所述发送端发送字段上指示 Payload Size或 RV的控制信令由以下方式实现:
当发送端进行数据包的初传时, 发送所述字段上指示 Payload Size的控制 信令。
5、 如权利要求 1所述的方法, 其特征在于, 所述向终端发送字段上指示 Payload Size或 RV的控制信令由以下方式实现:
当发送端检测到不连续发射 DTX时, 发送所述字段上指示 Payload Size 或 RV的控制信令。
6、 如权利要求 5所述的方法, 其特征在于, 所述当发送端检测到不连续 发射时,发送所述字段上指示 Payload Size或 RV的控制信令由以下方式实现: 当数据包传输次数达到或超过预设值时,在下一次发送控制信令的所述字 段上指示 RV;
当数据包传输次数没有达到预设值时,在下一次发送控制信令的所述字段 上指示 Payload Size。
7、 如权利要求 1所述的方法, 其特征在于, 所述发送端发送字段上指示 Payload Size或 RV的控制信令由以下方式实现: 当发送端检测为数据传输失败时, 发送所述字段上指示 RV的控制信令。
8、一种发送控制信令的装置,其特征在于, 包括控制信令生成单元(111 ) 和控制信令发送单元(112 ), 其中,
控制信令生成单元(111 ), 用于生成控制信令, 所述控制信令中的同一字 段的不同状态指示 Payload Size或 RV;
控制信令发送单元( 112 ), 用于发送所述字段上指示 Payload Size或 RV 的控制信令。
9、 如权利要求 8所述的装置, 其特征在于, 控制信令生成单元(111 ) 包 括控制信令确定单元(1111 )和控制信令字段填充单元(1112 ), 其中,
控制信令确定单元(1111 ), 用于确定发送的控制信令的所述字段上指示 的数据是 Payload Size或 RV;
控制信令字段填充单元(1112 ), 用于根据控制信令确定单元(1111 )确 定的 Payload Size或 RV, 填充所述控制信令的所述字段。
10、 如权利要求 9 所述的装置, 其特征在于, 所述控制信令确定单元 ( 1111 ), 用于在进行数据包初传时, 确定控制信令的所述字段上指示的是
Payload Size;
所述控制信令确定单元( 1111 ), 用于在检测为不连续发射时, 如果该数 据包传输次数达到或超过预设值 ,则确定控制信令的所述字段上指示的是 RV; 如果该数据包传输次数没有达到预设值,则确定控制信令的所述字段上指示的 是 Payload Size;
所述控制信令确定单元( 1111 ), 用于在检测为数据传输失败时, 确定控 制信令的所述字段上指示的是 RV。
PCT/CN2008/070822 2007-04-27 2008-04-28 Method and apparatus for transmitting a control signaling WO2008131693A1 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
EP19188743.9A EP3624378A1 (en) 2007-04-27 2008-04-28 Method and apparatus for sending control signaling
ES08734180T ES2392566T3 (es) 2007-04-27 2008-04-28 Método y equipo para transmitir una señalización de control
EP08734180A EP2077645B1 (en) 2007-04-27 2008-04-28 Method and apparatus for transmitting a control signaling
EP14198081.3A EP2863573B1 (en) 2007-04-27 2008-04-28 Method and apparatus for sending control signaling
US12/432,882 US8265023B2 (en) 2007-04-27 2009-04-30 Method and apparatus for sending control signaling
US13/544,238 US8369278B2 (en) 2007-04-27 2012-07-09 Method and apparatus for sending control signaling
US13/727,932 US9036524B2 (en) 2007-04-27 2012-12-27 Method and apparatus for sending control signaling
US14/713,808 US20150327221A1 (en) 2007-04-27 2015-05-15 Method and Apparatus for Sending Control Signaling

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200710097679.0 2007-04-27
CN2007100976790A CN101296165B (zh) 2007-04-27 2007-04-27 发送控制信令的方法和装置

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/432,882 Continuation US8265023B2 (en) 2007-04-27 2009-04-30 Method and apparatus for sending control signaling

Publications (1)

Publication Number Publication Date
WO2008131693A1 true WO2008131693A1 (en) 2008-11-06

Family

ID=39925215

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2008/070822 WO2008131693A1 (en) 2007-04-27 2008-04-28 Method and apparatus for transmitting a control signaling

Country Status (6)

Country Link
US (4) US8265023B2 (zh)
EP (6) EP2557741B1 (zh)
CN (2) CN102387485B (zh)
DE (1) DE202008018321U1 (zh)
ES (3) ES2533184T3 (zh)
WO (1) WO2008131693A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101753278B (zh) * 2008-12-16 2012-12-12 华为技术有限公司 一种数据接收的反馈方法及终端

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8532164B2 (en) 2008-03-12 2013-09-10 Panasonic Corporation Wireless communication apparatus, wireless communication system, and wireless communication method
EP2400685A1 (en) * 2010-06-22 2011-12-28 HTC Corporation Method of handling a damage information-assisted hybrid arq scheme and related communication device
US10039088B2 (en) * 2012-01-26 2018-07-31 Samsung Electronics Co., Ltd. Method and apparatus for scheduling communication for low capability devices
US9363621B2 (en) * 2012-11-12 2016-06-07 Huawei Technologies Co., Ltd. System and method adopting a reliable stop-and-wait hybrid automatic repeat request protocol
US20160270102A1 (en) * 2015-03-14 2016-09-15 Qualcomm Incorporated Distributed scheduling to control interference for data transactions using grant-less transmissions
CN107306149B (zh) * 2016-04-19 2020-06-26 航迅信息技术有限公司 一种航空通信方法及系统
CN111357372B (zh) * 2017-11-17 2022-06-28 中兴通讯股份有限公司 用于处理控制信息的系统和方法
CN110351025B (zh) * 2018-04-04 2022-04-05 华为技术有限公司 信息反馈方法、装置和系统
US11711170B2 (en) * 2020-04-30 2023-07-25 Qualcomm Incorporated HARQ retransmission termination based on lost redundancy version

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005109727A1 (en) * 2004-05-06 2005-11-17 Nokia Corporation A redundancy version implementation for an uplink enhanced dedicated channel
CN1233181C (zh) * 2002-04-09 2005-12-21 日本电气株式会社 用于高速下行链路分组接入的改进的信令方案
WO2006002658A1 (en) 2004-06-29 2006-01-12 Telefonaktiebolaget Lm Ericsson (Publ) Packet-based data processing technique
WO2006058173A2 (en) * 2004-11-24 2006-06-01 Qualcomm Incorporated Digital data interface device message format

Family Cites Families (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5553083B1 (en) * 1995-01-19 2000-05-16 Starburst Comm Corp Method for quickly and reliably transmitting frames of data over communications links
KR100434463B1 (ko) 1999-01-07 2004-06-05 삼성전자주식회사 부호분할다중접속 통신시스템의 데이터 통신 장치 및 방법
US6865233B1 (en) 1999-02-19 2005-03-08 Telefonaktiebolaget Lm Ericsson (Publ) Method and system for control signalling enabling flexible link adaptation in a radiocommunication system
KR100857777B1 (ko) * 2001-03-26 2008-09-09 엘지전자 주식회사 하이브리드 자동 재송 요구 방식을 이용한 가변 길이의 패킷 송수신 방법
EP1246385B1 (en) 2001-03-26 2014-04-30 LG Electronics Inc. Method of transmitting or receiving data packet in packet data communication system using hybrid automatic repeat request
KR100450938B1 (ko) * 2001-10-05 2004-10-02 삼성전자주식회사 고속 순방향 패킷 접속 방식을 사용하는 통신 시스템에서트랜스포트 블록 셋 크기 정보를 송수신하는 장치 및 방법
KR100754552B1 (ko) * 2001-12-28 2007-09-05 삼성전자주식회사 고속 순방향 패킷 접속 방식을 사용하는 통신 시스템에서고속 공통 제어 채널 송수신 장치 및 방법
US7283508B2 (en) * 2002-02-07 2007-10-16 Samsung Electronics Co., Ltd. Apparatus and method for transmitting/receiving serving HS-SCCH set information in an HSDPA communication system
US7292854B2 (en) * 2002-02-15 2007-11-06 Lucent Technologies Inc. Express signaling in a wireless communication system
KR100605859B1 (ko) * 2002-03-26 2006-07-31 삼성전자주식회사 고속 순방향 패킷 접속 방식을 사용하는 통신 시스템에서채널 품질 지시자 정보의 부호화 및 복호화 방법 및 장치
KR100876765B1 (ko) * 2002-05-10 2009-01-07 삼성전자주식회사 이동 통신 시스템에서 데이터 재전송 장치 및 방법
US7301929B2 (en) * 2002-08-09 2007-11-27 Spyder Navigations, L.L.C. Method and system for transport block size signaling based on modulation type for HSDPA
US7414989B2 (en) * 2003-05-07 2008-08-19 Motorola, Inc. ACK/NACK determination reliability for a communication device
EP1760927B1 (en) * 2003-08-14 2020-04-08 Panasonic Corporation Time monitoring of packet retransmissions during soft handover
US20050048920A1 (en) 2003-08-26 2005-03-03 Jung-Tao Liu Method of control signaling in wireless communications
DE10344765A1 (de) * 2003-09-26 2005-04-14 Siemens Ag Verfahren zum Übertragen von Kontrolldaten
US20050237932A1 (en) * 2004-04-23 2005-10-27 Jung-Tao Liu Method and system for rate-controlled mode wireless communications
US7584397B2 (en) * 2004-06-10 2009-09-01 Interdigital Technology Corporation Method and apparatus for dynamically adjusting data transmission parameters and controlling H-ARQ processes
KR100882057B1 (ko) * 2004-08-10 2009-02-09 닛본 덴끼 가부시끼가이샤 통신 제어 방법, 무선 통신 시스템, 기지국, 이동국 및 컴퓨터 판독 가능 기록 매체
EP1638238A1 (en) * 2004-09-15 2006-03-22 Siemens Aktiengesellschaft Method for combining data packets by a telecommunication device
JP4457868B2 (ja) * 2004-11-25 2010-04-28 富士通株式会社 無線通信装置、移動局
FI20055009A0 (fi) * 2005-01-05 2005-01-05 Nokia Corp Datan lähettäminen matkaviestinjärjestelmässä
WO2006114710A2 (en) * 2005-02-28 2006-11-02 Nokia Corporation Discontinuous transmission/reception in a communications system
RU2541877C2 (ru) * 2005-10-07 2015-02-20 Интердиджитал Текнолоджи Корпорейшн Способ и система для обеспечения информации управления для поддержки высокоскоростной нисходящей и восходящей линий связи
US8625601B2 (en) * 2005-10-31 2014-01-07 Qualcomm Incorporated Method and apparatus for low-overhead packet data transmission and control of reception mode
KR100678156B1 (ko) * 2005-12-12 2007-02-02 삼성전자주식회사 무선 패킷 데이터 송신기 및 수신기와 송신 및 수신방법
US8385273B2 (en) * 2006-05-01 2013-02-26 Ntt Docomo, Inc. Mobile station, base station, and communication control method
US7916749B2 (en) * 2007-01-09 2011-03-29 Nokia Corporation Method, apparatus and computer program to signal additional modulation scheme without additional signalling overhead
KR101387480B1 (ko) * 2007-01-11 2014-04-22 엘지전자 주식회사 통신 상황에 따른 스케줄링 방식 적용 방법 및 이를지원하는 송수신 장치
US8559457B2 (en) * 2007-06-18 2013-10-15 Nokia Siemens Networks Oy Method for dynamic interpretation of transport block size
KR20090016412A (ko) * 2007-08-10 2009-02-13 엘지전자 주식회사 무선 통신 시스템에서의 데이터 통신 방법
US8489651B2 (en) * 2011-03-25 2013-07-16 Microsoft Corporation Reconstruction of garbage collection information

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1233181C (zh) * 2002-04-09 2005-12-21 日本电气株式会社 用于高速下行链路分组接入的改进的信令方案
WO2005109727A1 (en) * 2004-05-06 2005-11-17 Nokia Corporation A redundancy version implementation for an uplink enhanced dedicated channel
WO2006002658A1 (en) 2004-06-29 2006-01-12 Telefonaktiebolaget Lm Ericsson (Publ) Packet-based data processing technique
WO2006058173A2 (en) * 2004-11-24 2006-06-01 Qualcomm Incorporated Digital data interface device message format

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2077645A4

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101753278B (zh) * 2008-12-16 2012-12-12 华为技术有限公司 一种数据接收的反馈方法及终端

Also Published As

Publication number Publication date
EP2863573A1 (en) 2015-04-22
EP2475136A1 (en) 2012-07-11
EP3624378A1 (en) 2020-03-18
CN101296165A (zh) 2008-10-29
EP2077645A4 (en) 2011-05-25
CN101296165B (zh) 2011-09-21
EP2521327A1 (en) 2012-11-07
ES2392566T3 (es) 2012-12-11
EP2475136B1 (en) 2014-12-31
US9036524B2 (en) 2015-05-19
ES2533184T3 (es) 2015-04-08
EP2557741B1 (en) 2014-12-31
US20090213876A1 (en) 2009-08-27
EP2521327B1 (en) 2014-12-31
US20120275368A1 (en) 2012-11-01
EP2077645A1 (en) 2009-07-08
EP2863573B1 (en) 2019-07-31
CN102387485A (zh) 2012-03-21
EP2557741A1 (en) 2013-02-13
ES2534376T3 (es) 2015-04-22
EP2077645B1 (en) 2012-09-05
US20130114544A1 (en) 2013-05-09
US8265023B2 (en) 2012-09-11
CN102387485B (zh) 2015-07-29
US20150327221A1 (en) 2015-11-12
DE202008018321U1 (de) 2012-12-11
US8369278B2 (en) 2013-02-05

Similar Documents

Publication Publication Date Title
WO2008131693A1 (en) Method and apparatus for transmitting a control signaling
US11012196B2 (en) Base stations, user equipments and a system for wireless communication, as well as the corresponding methods
US9507669B2 (en) Method of transmitting data using HARQ
US7124350B2 (en) Wireless communication method and system for detecting and correcting transmission errors
RU2554527C2 (ru) Способы и устройства в телекоммуникационной системе
CN106788918A (zh) Harq配置方法、反馈方法、基站及用户设备
WO2009155826A1 (zh) 上行链路数据传输方法、终端装置
WO2021135616A1 (zh) 信息传输方法、装置、终端设备和存储介质
US20130028189A1 (en) Method and apparatus for using physical layer error control to direct media access layer error control
US20200137752A1 (en) Technique for Controlling the Timing of Uplink Control Information in a Radio Communication Between a Network Node and a Radio Device
WO2013044880A1 (zh) 一种数据传输方法和装置
JP2015188255A (ja) 移動端末の無線充電のための方法
WO2014117543A1 (zh) 一种基于信道激活检测的传输方法及装置
WO2013166883A1 (zh) 传输或接收上行sps业务数据的方法和用户设备和基站
WO2010124418A1 (zh) 一种用于控制数据重传的方法和装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08734180

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2008734180

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: DE