CN103108398B - Uplink control channel transmission method and relevant apparatus - Google Patents

Abstract

The embodiment of the invention discloses a kind of uplink control channel transmission method and relevant apparatus, be beneficial to and distribute the channel resource for ascending control channel。The method comprise the steps that terminal obtains the control information needed to base station feedback and the transformat selected based on ascending control channel；Described terminal distributes the channel resource for described ascending control channel according to described control information and described transformat。Additionally, present invention also offers the responding device realizing the method。

Description

Uplink control channel transmission method and related device

technical field

The present invention relates to the communication field, in particular to an uplink control channel transmission method and a related device.

Background technique

With the rapid development of wireless communication services, future networks need to consider higher data transmission rates. In the Long Term Evolution Enhanced (LTE-A, Long Term Evolution Advanced) system, in order to support larger bandwidth, carrier aggregation technology is introduced, that is, multiple The resources of the secondary carrier are scheduled to be used by one terminal at the same time. The spectrum occupied by multiple secondary carriers may be continuous or discontinuous; the bandwidth of each secondary carrier may be the same or different; each secondary carrier may be a carrier compatible with Long Term Evolution (LTE, LongTermEvolution) LTE terminals, It may also be only a carrier that supports LTE-A terminals. However, as the number of aggregated carriers increases, the amount of corresponding uplink feedback information also increases, such as (HARQ, HybridAutomaticRepeatRequest) information and channel quality information (CQI, ChannelQualityInformation).

Studies have shown that the single-resource-based uplink control channel transmission method in the prior art encounters performance bottlenecks. For example, the existing Format1b channel selection only supports 2 carriers; Format3 transmits a large amount of information (for example, 16 bits above) has poor performance, which limits the application scenarios of Format3. Moreover, when the system needs to feed back multiple types of information within a certain period of time, only one type of information can be selected for transmission, and other information needs to be discarded, which affects the quality of measurement reporting.

Due to the many shortcomings of the above-mentioned uplink single-resource transmission mode, it is necessary to use multiple resources to transmit the uplink control channel. However, the existing uplink multi-resource transmission mode only proposes a preliminary framework concept, and there are still many problems to be solved. For example, resource allocation of multiple resources, information allocation and processing methods corresponding to multiple resources, etc.

Contents of the invention

Embodiments of the present invention provide an uplink control channel transmission method and a related device, which are beneficial for allocating channel resources for the uplink control channel.

The uplink control channel transmission method provided by the present invention includes: the terminal acquires the control information that needs to be fed back to the base station and the transmission format selected based on the uplink control channel; the terminal allocates the uplink control channel according to the control information and the transmission format The channel resource of the channel.

Optionally, before the terminal allocates channel resources for the uplink control channel according to the control information and the transmission format, the method includes: the terminal receiving an indication message sent by the base station, the indication message being used for Instructing the terminal to determine a transmission mode of the uplink control channel when transmitting the uplink control channel, where the transmission mode of the uplink control channel includes an uplink multi-resource transmission mode and an uplink single-resource transmission mode.

Optionally, before the terminal allocates the channel resource for the uplink control channel according to the control information and the transmission format, the method includes: the terminal obtains, according to the configuration information of the base station, the channel resource configured for downlink data transmission. The total number of carriers, and/or the total number of bits of HARQ information that need to be fed back to the base station; the terminal determines the transmission mode of the uplink control channel according to the total number of carriers, and/or the total number of bits, the The transmission mode of the uplink control channel includes an uplink multi-resource transmission mode and an uplink single-resource transmission mode.

Optionally, when the control information includes HARQ information, and the transmission format selected based on the uplink control channel is Format3, the terminal allocates the uplink control channel according to the control information and the transmission format channel resources, including:

When the terminal and the base station perform uplink control channel transmission, the terminal detects whether only the main carrier performs data transmission or semi-persistent scheduling releases SPSrelease signaling transmission;

If not only the primary carrier performs data transmission or SPSrelease signaling transmission, then when the control information only contains HARQ information, the terminal performs group processing on the HARQ information, and distributes the group-processed HARQ information to multiple The channel resource of the uplink control channel is transmitted, and the channel resource of the uplink control channel used for the grouped HARQ information is specified by the transmission power control TPC field of the secondary carrier;

When the control information includes HARQ information and channel quality information CQI, the terminal discards the CQI, and performs packet processing on the HARQ information, assigns the HARQ information after packet processing to different resources for transmission, and performs During resource allocation, the resources of each group of HARQ information are specified by the TPC field in a secondary carrier in the corresponding carrier group;

When the control information includes HARQ information and scheduling request SR information, the terminal performs grouping processing on the HARQ information, jointly encodes the SR information and the HARQ information group of the carrier group including the main carrier, and puts them into SR resources The HARQ information of the remaining carrier groups is transmitted on the original HARQ resources. When resource allocation is performed, SR resources and HARQ resources are used for allocation, and the resources of each group of HARQ information are allocated by a different secondary carrier in the corresponding carrier group. The TPC domain specified in;

If only the main carrier performs data transmission or SPS release signaling transmission, then when the control information only includes HARQ information, the terminal allocates the HARQ information to a resource for transmission, and uses the uplink control on the main carrier when allocating resources. The number of the control channel element of the channel or the TPC field indication of the semi-persistent scheduling determines an uplink control channel resource;

When the information type includes HARQ information and CQI, and supports simultaneous transmission of CQI and HARQ, the terminal selects CQI information corresponding to multiple downlink carriers for feedback, and selects HARQ information and CQI corresponding to one downlink carrier in the transmission format Format2a Or Format2b multiplex transmission, the rest of the CQI groups use Format2, or all CQI groups and HARQ information use Format2a or Format2b multiplex transmission, when resource allocation, allocate according to multiple CQI resources; if simultaneous transmission is not supported, discard All CQI feedback;

When the control information includes HARQ information and SR information, the terminal adjusts the transmission format to Format1a or Format1b on the SR resource for transmission, and uses semi-persistent scheduling to allocate the SR resource during resource allocation.

It can be seen from the above technical solutions that the embodiments of the present invention have the following advantages: the present invention obtains the information type and transmission format that need to be fed back to the base station through the configuration information and scheduling information of the uplink control channel transmission between the base station and the terminal, And according to the information type and transmission format, the terminal can reasonably allocate channel resources for different information types and transmission formats, so that channel resources can be optimally configured.

Optionally, if the control information includes HARQ information, and the transmission format is Format1b and channel selection, then the terminal allocates channel resources for the uplink control channel according to the control information and the transmission format, including:

When the control information only includes HARQ information, the terminal performs group processing on the HARQ information, and allocates the HARQ information after group processing to different resources for transmission. The numbers of the control channel units of the main carrier and the auxiliary carrier in the carrier group or the TPC field indication are determined;

When the control information includes HARQ information and CQI, and supports simultaneous transmission of CQI and HARQ, the terminal processes the HARQ information into groups, and selects the CQI information corresponding to multiple downlink carriers for feedback, and the terminal sends each carrier group For the HARQ information that needs to be fed back, select a group of CQIs for joint coding and modulation, and use Format2b transmission on the CQI resources. When performing resource allocation, allocate according to the CQI resources; if simultaneous transmission is not supported, discard all CQI feedback;

When the control information includes HARQ information and SR information, the terminal processes the HARQ information into groups, selects the HARQ information of the carrier group including the primary carrier to transmit on the SR resource, and transmits the HARQ information corresponding to the remaining carrier groups in the original When the resource is allocated, the information transmitted on the SR resource is allocated by the semi-persistent scheduling method, and the rest is specified by the TPC field in the secondary carrier.

Optionally, if the transmission format is Format2, and the control information only includes CQI, then the terminal allocates channel resources for the uplink control channel according to the control information and the transmission format, including:

The terminal selects the CQIs corresponding to N carriers and assigns them to different resources for transmission respectively. The N is equal to the number of CQI resources, and the N is an integer greater than 1. When performing resource allocation, a semi-persistent scheduling method is used for allocation.

Optionally, if the transmission format is Format1, and the control information only includes SR information, then the terminal allocates channel resources for the uplink control channel according to the control information and the transmission format, including :

The terminal transmits the SR information on one resource, and allocates the SR information to the SR resource when performing resource allocation.

Optionally, performing group processing on the HARQ information includes: performing group processing on the HARQ information according to the configured total number of downlink carriers or information bits.

The terminal provided by the present invention includes:

A first acquiring unit, configured to acquire control information that needs to be fed back to the base station and a transmission format selected based on the uplink control channel; an allocation unit, configured to allocate a channel for the uplink control channel according to the control information and the transmission format resource.

Optionally, the terminal also includes:

an instruction receiving unit, configured to receive an instruction message sent by the base station, the instruction message is used to instruct the terminal to determine the transmission mode of the uplink control channel when performing the transmission of the uplink control channel, and the transmission of the uplink control channel The modes include an uplink multi-resource transmission mode and an uplink single-resource transmission mode.

Optionally, the terminal also includes:

The second acquiring unit is configured to acquire the total number of carriers configured for downlink data transmission according to the configuration information of the base station, and/or the total number of bits of HARQ information that need to be fed back to the base station; the selection unit is configured to The terminal determines the transmission mode of the uplink control channel according to the total number of carriers and/or the total number of bits, and triggers the first acquisition unit if the uplink multi-resource transmission mode is used.

Optionally, the allocation unit includes:

The carrier detection module is used to detect whether data transmission or SPS release signaling transmission is required only on the downlink main carrier, and triggers the mode selection module to perform corresponding processing according to the detection result; the mode selection module is used to determine according to the control information and the transmission format For the transmission mode of uplink multi-resource transmission, if multiple resources need to be allocated for transmission, the packet processing module is triggered; if only a single resource needs to be allocated for transmission, the resource allocation module is directly triggered; the packet processing module is used to The number of carriers or the total number of information bits perform group processing on the HARQ information; a resource allocation module is used to allocate resources to the information that needs to be fed back according to the selection result of the mode selection module.

Description of drawings

FIG. 1 is a schematic flowchart of an uplink control channel transmission method in an embodiment of the present invention;

FIG. 2 is another schematic flowchart of an uplink control channel transmission method in an embodiment of the present invention;

FIG. 3 is another schematic flowchart of an uplink control channel transmission method in an embodiment of the present invention;

Fig. 4 is a schematic diagram of a logical structure of a terminal in an embodiment of the present invention.

detailed description

Embodiments of the present invention provide an uplink control channel transmission method and a related device, which are beneficial for allocating channel resources for the uplink control channel.

Please refer to FIG. 1, an embodiment of the uplink control channel transmission method in the embodiment of the present invention includes:

101. The terminal acquires control information and a transmission format that needs to be fed back to the base station;

The terminal obtains the control information to be fed back to the base station and the transmission format selected based on the uplink control channel according to the current configuration information and scheduling information of the uplink control channel transmission between the base station and the terminal.

In the embodiment of the present invention, after the terminal receives the semi-static configuration information and dynamic scheduling information sent by the base station, the terminal can schedule and allocate channel resources according to the configuration information and scheduling information in the subsequent data transmission with the base station.

In the embodiment of the present invention, the above-mentioned terminal may be an LTE-A terminal; the above-mentioned control message that needs to be fed back to the base station may include: HARQ information, CQI and scheduling request (SR, SchedulingRequest) information; the above-mentioned transmission format is physical uplink control The data transmission format of the channel (PUCCH, PhysicalUplinkControlChannel) may specifically be: Format3, Format2, Format2a, Format2b, Format1, Format1a, and Format1b.

102. The terminal allocates channel resources for the uplink control channel according to the control information and the transmission format.

The transmission mode of the existing uplink control channel includes an uplink multi-resource transmission mode and an uplink single-resource transmission mode. The uplink single-resource transmission mode refers to the mode in which a single PUCCH resource is used for uplink control information transmission. It is a mode in which multiple PUCCH resources are used to transmit uplink control information.

In the embodiment of the present invention, although the multi-resource transmission mode is generally used, at a certain moment of information transmission, it may only need to use a single resource (such as when the terminal detects that there is only data transmission on the main carrier) , at this time, subsequent judgment needs to be performed according to the type of the transmission format (for example, carrier data detection performed when the transmission format is Format3), so as to make resource allocation more reasonable.

Moreover, at a certain point in the transmission of control information, the type of control information that needs to be fed back and the number of types contained in the control information may be different. In the existing channel resources, different control messages may have their corresponding channel resources, and in the embodiment of the present invention, due to the multi-resource transmission mode, it may be necessary to feed back multiple types of information (such as the above-mentioned HARQ information and SR information) to the base station in one transmission. Therefore, when performing resource allocation , it is necessary to allocate different information to the corresponding channel resources as much as possible; and, since the information volume of various control messages is different, and there are many options for the transmission format adopted, the terminal needs to effectively control the information based on the feedback. Messages and transmission formats are used to allocate resources so that various information can be allocated to channel resources of appropriate size to achieve optimal allocation of resources.

The present invention obtains the control message and transmission format that need to be fed back to the base station through the configuration information and scheduling information of the uplink control channel transmission between the base station and the terminal, and determines the transmission mode of uplink multi-resource transmission according to the control message and transmission format And the resource allocation method enables the terminal to reasonably allocate channel resources for different control messages and transmission formats, so that the channel resources are optimally configured.

Optional according to the actual situation, when the LTE-A terminal is compatible with the uplink single-resource transmission mode and the uplink multi-resource transmission mode, the transmission mode can be selected according to the actual situation of the base station, please refer to Figure 2 for details, the implementation of the present invention Another embodiment of the uplink control channel transmission method in the example includes:

201. The terminal obtains the total number of carriers used for downlink data transmission, and/or the total number of bits of HARQ information that needs to be fed back to the base station;

The terminal acquires the total number of carriers used for downlink data transmission and/or the total number of bits of HARQ information that needs to be fed back to the base station according to the configuration information currently stored locally for uplink control channel transmission with the base station; and according to the total number of carriers, and/or The total number of bits selects whether the uplink control channel transmission uses the uplink single-resource transmission mode or the uplink multi-resource transmission mode; if the uplink multi-resource transmission mode is used, step 202 is triggered.

In the embodiment of the present invention, a threshold value may be set in advance for the total number of carriers and/or the total number of bits of HARQ information. Once the condition of the threshold value is met, the mode of using uplink multi-resource transmission may be determined.

In addition, optionally, the base station can also directly send an indication message to the terminal. After the terminal receives the indication message, it can know that the uplink control channel transmission between the terminal and the base station uses the uplink multi-resource transmission mode, and step 202 can also be triggered. .

It can be understood that whether the terminal makes the judgment according to the existing information or the base station makes the direct instruction may be determined by the actual situation, which is not limited here.

202. The terminal acquires a control message and a transmission format that need to be fed back to the base station;

The terminal obtains the control information to be fed back to the base station and the transmission format selected based on the uplink control channel according to the current configuration information and scheduling information of the uplink control channel transmission between the base station and the terminal.

In the embodiment of the present invention, after the terminal receives the semi-static configuration information and dynamic scheduling information sent by the base station, the terminal can schedule and allocate channel resources according to the configuration information and scheduling information in the subsequent data transmission with the base station.

In the embodiment of the present invention, the above-mentioned terminal may be an LTE-A terminal; the above-mentioned control message that needs to be fed back to the base station may include: HARQ information, CQI and scheduling request (SR, SchedulingRequest) information; the above-mentioned transmission format is physical uplink control The data transmission format of the channel (PUCCH, PhysicalUplinkControlChannel) may specifically be: Format3, Format2, Format2a, Format2b, Format1, Format1a, and Format1b.

203. The terminal allocates channel resources for the uplink control channel according to the control information and the transmission format.

The transmission mode of the existing uplink control channel includes an uplink multi-resource transmission mode and an uplink single-resource transmission mode. The uplink single-resource transmission mode refers to the mode in which a single PUCCH resource is used for uplink control information transmission. It is a mode in which multiple PUCCH resources are used to transmit uplink control information.

In the embodiment of the present invention, although the multi-resource transmission mode is generally used, at a certain moment of information transmission, it may only need to use a single resource (such as when the terminal detects that there is only data transmission on the main carrier) , at this time, subsequent judgment needs to be performed according to the type of the transmission format (for example, carrier data detection performed when the transmission format is Format3), so as to make resource allocation more reasonable.

Moreover, at a certain point in the transmission of control information, the type of control information that needs to be fed back and the number of types contained in the control information may be different. In the existing channel resources, different control messages may have their corresponding channel resources, and in the embodiment of the present invention, due to the multi-resource transmission mode, it may be necessary to feed back multiple types of information (such as the above-mentioned HARQ information and SR information) to the base station in one transmission. Therefore, when performing resource allocation , it is necessary to allocate different information to the corresponding channel resources as much as possible; and, since the information volume of various control messages is different, and there are many options for the transmission format adopted, the terminal needs to effectively control the information based on the feedback. Messages and transmission formats are used to allocate resources so that various information can be allocated to channel resources of appropriate size to achieve optimal allocation of resources.

The method for determining the transmission mode and resource allocation of uplink multi-resource transmission according to the control message and transmission format will be described in detail below. Please refer to FIG. 3. Another embodiment of the uplink control channel transmission method in the embodiment of the present invention includes:

301. The terminal acquires the total number of carriers used for downlink data transmission, and/or the total number of bits of HARQ information that needs to be fed back to the base station;

The terminal acquires the total number of carriers used for downlink data transmission and/or the total number of bits of HARQ information that needs to be fed back to the base station according to the configuration information currently stored locally for uplink control channel transmission with the base station; and according to the total number of carriers, and/or The total number of bits selects whether the uplink control channel transmission uses the uplink single-resource transmission mode or the uplink multi-resource transmission mode; if the uplink multi-resource transmission mode is used, step 302 is triggered.

302. The terminal acquires a control message and a transmission format that needs to be fed back to the base station;

The terminal obtains the control message and transmission format that need to be fed back to the base station according to the current configuration information and scheduling information of uplink control channel transmission between the base station and the terminal.

Optionally according to the actual situation, if the above-mentioned transmission format that needs to feed back HARQ information to the base station is Format3, then trigger step 303; if the above-mentioned transmission format that needs to feed back HARQ information to the base station is a format other than Format3, then directly trigger step 305.

303. The terminal detects whether data transmission is required only on the main carrier;

When the terminal performs uplink control channel transmission with the base station, the terminal detects whether only data transmission or (SPS release, semi-persistent scheduling release) transmission needs to be performed on the main carrier according to the scheduling information sent by the base station.

304. The terminal determines a transmission mode of uplink multi-resource transmission and a resource allocation method according to the detection result of the primary carrier;

If the terminal detects that not only the main carrier needs to perform data transmission or SPS release signaling transmission, then when the control message that needs to be fed back includes only HARQ information, the terminal performs group processing on the HARQ information, for example, the HARQ information of several carriers The information is grouped into one group, and the HARQ information after grouping is allocated to different resources for transmission; when resource allocation is performed, the resources corresponding to each group of HARQ information are divided by carrier groups (a carrier group includes a main carrier and The transmission power control (TPC, TransmissionPowerControl) field designation in a certain auxiliary carrier in multiple auxiliary carriers), for example, is respectively designated by the TPC field of the smallest numbered auxiliary carrier in each carrier group.

When the control message that needs to be fed back includes HARQ information and CQI, the terminal discards the CQI, and performs packet processing on the HARQ information, and allocates the HARQ information after packet processing to different resources for transmission. When performing resource allocation, The resources corresponding to each group of HARQ information are respectively specified by the TPC field in a different secondary carrier in the carrier group.

When the control message that needs to be fed back includes HARQ information and scheduling request SR information, the terminal performs packet processing on the HARQ information, and the terminal jointly encodes the SR information and the HARQ information of the carrier group including the main carrier, and puts it on the SR resource for transmission , the HARQ information of the remaining carrier groups is transmitted on the original HARQ resources. When resource allocation is performed, SR resources and HARQ resources are used for allocation. TPC domain designation.

If the terminal detects that only the main carrier needs to perform data transmission or SPS release signaling transmission, then when the control message that needs to be fed back includes only HARQ information, the terminal allocates the HARQ information to a resource for transmission. The number of the control channel unit of the uplink control channel on the main carrier or the TPC indication of semi-persistent scheduling determines an uplink control channel resource; If there are all secondary carriers in the group, the corresponding channel resources are determined according to the sequence of carrier numbers and the TPC fields in the secondary carriers.

When the control message that needs to be fed back includes HARQ information and CQI, and supports simultaneous transmission of CQI and HARQ, the terminal selects CQI information groups corresponding to multiple downlink carriers for feedback, and selects HARQ information and CQI corresponding to one downlink carrier to transmit The format is adjusted to Format2a or Format2b for multiplexing transmission, and the rest of the CQI groups use Format2, or all CQI groups and HARQ information use Format2a or Format2b multiplexing transmission. Specifically, there is only one group of HARQ information, and the CQIs of different groups carry the same The group of HARQ information adopts Format2a or Format2b for multiplex transmission; in resource allocation, it is allocated according to multiple sets of CQI resources; specifically, if the HARQ information value selects a CQI resource for multiplex transmission, it can be based on the CQI corresponding to the carrier number Select (such as selecting the CQI corresponding to the carrier with the smallest number in a carrier group), or randomly select a CQI corresponding to a downlink carrier, and let the selected CQI carry the HARQ information for transmission on the corresponding CQI resource; if not If simultaneous transmission is supported, all CQI feedback is discarded;

In the prior art, different types of information originally have different resources. If a portability transmission method is selected, a part of resources will be saved and the resource utilization rate will be improved.

When the control message that needs to be fed back includes HARQ information and PositiveSR information, the terminal adjusts the transmission format to Format1a or Format1b on the SR resource for HARQ transmission, and uses semi-persistent scheduling to allocate the SR resource during resource allocation.

Specifically, the semi-persistent scheduling technology has the characteristics of one-time scheduling and periodic sending or receiving, and the release of the configured resources after use will become very important. If the system resources are not released successfully after the semi-persistent scheduling service ends, it may cause serious interference to other users, resulting in a decrease in system performance. For example, for uplink semi-persistent scheduling transmission, if the system does not release the semi-static resources used by the system after the service ends or fails to release, the terminal will continue to transmit on the configured resources, and at this time the base station may have already Allocating the resources to other users for data transmission will cause serious co-frequency interference, which will make the base station unable to perform demodulation. Therefore, the base station needs to instruct the terminal to release the uplink semi-persistent scheduling resources, and make corresponding regulations on the format of the PUCCH (such as the transmission format in the embodiment of the present invention is Format1a or Format1b), so as to achieve more reliable release Effect.

In the embodiment of the present invention, if it is necessary to group the information that needs to be fed back, the information can be grouped according to the total number of configured downlink carriers or the total number of information bits. For example, when grouping according to the number of carriers, group the The N _CCS carriers are sorted according to the carrier number and divided into carrier groups (wherein N _CCS and N _CCG are respectively the total number of carriers and the size of the carrier group), and the information of each group is processed according to the prior art.

305. The terminal determines a transmission mode of uplink multi-resource transmission and a resource allocation method according to the control message and the transmission format.

If the transmission format of the feedback information is Format1b and channel selection, then when the control message that needs to be fed back includes only HARQ information, the terminal processes the HARQ information in groups, and assigns the grouped HARQ information to different resources for transmission , when resource allocation is performed, the resources of each HARQ group are determined by the numbers of the control channel elements of the primary and secondary carriers in different carrier groups or the TPC field indication; for example, when there are primary and secondary carriers in the carrier group, the existing technology is used In the resource indication mode in , if all the carrier groups are secondary carriers, the corresponding channel resources are determined according to the TPC field in the secondary carrier according to the order of the carrier numbers.

If the transmission format of feedback information is Format1b and channel selection, when the control message that needs feedback includes HARQ information and CQI, and supports simultaneous transmission of CQI and HARQ, the terminal processes the HARQ information in groups and selects multiple The CQI information group corresponding to each downlink carrier is fed back. The terminal selects a group of CQI for the HARQ information that needs to be fed back for each carrier group for joint coding and modulation, and uses Format2b transmission on the CQI resource. When performing resource allocation, according to the CQI resource Allocation; specifically, when Format1b is selected and transmitted simultaneously with the CQI, the HARQ information also has only 2 bits, which can be carried and transmitted by the CQI; if simultaneous transmission is not supported, all CQI feedback is discarded. The resource is used by whoever carries it, and the association relationship between the HARQ information group and the CQI information can be corresponding to the carrier number.

If the transmission format of the feedback information is Format1b and channel selection, when the control message that needs to be fed back includes HARQ information and SR information, the terminal performs group processing on the HARQ information, and selects the HARQ information of the carrier group that includes the primary carrier in the SR The HARQ information corresponding to the rest of the carrier groups is transmitted on the original resource. During resource allocation, the information transmitted on the SR resource is allocated by semi-persistent scheduling, and the rest is specified by the TPC field in the auxiliary carrier.

If the transmission format of the information to be fed back is Format2, and the control message to be fed back only includes CQI, the terminal selects the CQI corresponding to N carriers and assigns them to different resources for transmission. N is equal to the number of resources, and N is greater than 1. An integer of , when performing resource allocation, the method of semi-persistent scheduling is used for allocation, and the resource number occupied by the CQI of each carrier has a definite corresponding relationship with the number of the carrier.

If the transmission format of the feedback information is Format1, and the control message that needs feedback only includes SR information, the terminal transmits the SR information on one resource, and allocates the SR information to the SR resource when performing resource allocation superior. Since the amount of information such as HARQ/CQI varies with the number of carriers, more resources are needed for transmission, while SR has only one information, regardless of the number of carriers, and one resource is enough.

The application scenarios in the embodiments of the present invention are described above using only some examples, and it can be understood that in actual applications, there may be more application scenarios, which are not specifically limited here.

The following describes an embodiment of the SDP message pushing device of the present invention for performing the above-mentioned uplink control channel transmission method. Please refer to FIG. 4 for its logical structure. An embodiment of the SDP message pushing device in the embodiment of the present invention includes:

The first obtaining unit 401 is configured to obtain the control information that needs to be fed back to the base station and the transmission format selected based on the uplink control channel;

The allocating unit 402 is configured to allocate channel resources for the uplink control channel according to the control information and the transmission format.

The terminal in the embodiment of the present invention may further include:

The instruction receiving unit 403 is configured to receive an instruction message sent by the base station, the instruction message is used to instruct the terminal to determine the transmission mode of the uplink control channel when performing the transmission of the uplink control channel, and the transmission of the uplink control channel The modes include an uplink multi-resource transmission mode and an uplink single-resource transmission mode.

The terminal in the embodiment of the present invention may further include:

The second obtaining unit 404 is configured to obtain the total number of carriers configured for downlink data transmission according to the configuration information of the base station, and/or the total number of bits of HARQ information that need to be fed back to the base station;

The selection unit 405 is used for the terminal to determine the transmission mode of the uplink control channel according to the total number of carriers and/or the total number of bits, and trigger the first acquisition unit 401 if the uplink multi-resource transmission mode is used.

The allocation unit 402 in this embodiment of the present invention may include:

The carrier detection module 4021 is used to detect whether only data transmission or SPS release signaling transmission needs to be performed on the main carrier, and trigger the mode selection module 4022 to perform corresponding processing according to the detection result;

The mode selection module 4022 is used to determine the transmission mode of the uplink multi-resource transmission according to the above-mentioned control message and transmission format. If it needs to be allocated to multiple resources for transmission, trigger the packet processing module 4023; if it only needs to be allocated to a single resource for transmission. transmission, the resource allocation module 4024 is directly triggered;

A grouping processing module 4023, configured to perform grouping processing on HARQ information according to the number of carriers or the total number of information bits;

The resource allocation module 4024 is configured to allocate resources for the information that needs to be fed back according to the selection result of the mode selection module 4022 .

The specific interaction process of each unit in the embodiment of the present invention is as follows:

The first obtaining unit 401 of the terminal obtains the control message and transmission format that need to be fed back to the base station according to the configuration information and scheduling information of the uplink control channel transmission between the current base station and the terminal; in the embodiment of the present invention, the terminal can receive the According to the configuration information and scheduling information sent by the base station, the terminal can schedule and allocate channel resources according to the configuration information and scheduling information in the subsequent data transmission with the base station. It can be understood that after the terminal joins the network, due to special reasons such as network adjustments, the configuration information and scheduling information of the uplink control channel transmission between the base station and the terminal may be updated and changed, and the current configuration information and scheduling information shall prevail for the terminal.

In the embodiment of the present invention, although the multi-resource transmission mode is generally used, at a certain moment of information transmission, it may only need to use a single resource (such as when the terminal detects that there is only data transmission on the main carrier) , at this time, subsequent judgment needs to be performed according to the type of the transmission format (for example, carrier data detection performed when the transmission format is Format3), so as to make resource allocation more reasonable.

Moreover, at a certain point in the transmission of control information, the type of control information that needs to be fed back and the number of types contained in the control information may be different. In the existing channel resources, different control messages may have their corresponding channel resources, and in the embodiment of the present invention, due to the multi-resource transmission mode, it may be necessary to feed back multiple types of information (such as the above-mentioned HARQ information and SR information) to the base station in one transmission. Therefore, when performing resource allocation , it is necessary to allocate different information to the corresponding channel resources as much as possible; and, since the information volume of various control messages is different, and there are many options for the transmission format adopted, the terminal needs to effectively control the information based on the feedback. Messages and transmission formats are used to allocate resources so that various information can be allocated to channel resources of appropriate size to achieve optimal allocation of resources.

The above-mentioned control message that needs to be fed back to the base station may include: HARQ information, CQI and scheduling request (SR, SchedulingRequest) information; the above-mentioned transmission format is a data transmission format of a physical uplink control channel (PUCCH, PhysicalUplinkControlChannel), specifically, it may be: Format3 , Format2, Format2a, Format2b, Format1, Format1a, and Format1b.

Optionally, before the first obtaining unit 401 performs the operation, the second obtaining unit 404 may obtain the total number of carriers used for downlink data transmission according to the configuration information currently stored locally for uplink control channel transmission with the base station, and/or The total number of bits of the HARQ information that needs to be fed back to the base station; and the selection unit 405 selects whether the uplink control channel transmission uses the uplink single resource transmission mode or the uplink multi-resource transmission mode according to the total number of carriers and/or the total number of bits; if using The mode of uplink multi-resource transmission triggers the first acquiring unit 401 .

Optionally, before the operation performed by the first obtaining unit 401, if the uplink multi-resource transmission is determined by the base station, the indication receiving unit 403 may also receive an indication message sent by the base station, the indication message is used to indicate that the terminal is performing uplink control During channel transmission, the uplink multi-resource transmission mode is used.

After acquiring the above configuration information and scheduling information, the allocating unit 402 determines a transmission mode of uplink multi-resource transmission and a resource allocation method according to the above control message and transmission format. Specifically, the transmission format that needs feedback information can be identified first. If the transmission format is Format3, the carrier detection module 4021 is first triggered to detect whether only data transmission or SPS release signaling transmission is required on the main carrier, and the trigger mode is selected according to the detection result. Module 4022 performs corresponding processing; specifically:

If the carrier detection module 4021 detects that not only the main carrier needs to perform data transmission or SPS release signaling transmission, then when the control message that needs to be fed back includes only HARQ information, the packet processing module 4023 performs packet processing on the HARQ information, in the manner The selection module 4022 allocates the HARQ information after packet processing to different resources for transmission; when the resource allocation module 4024 performs resource allocation, the resources corresponding to each group of HARQ information are determined by the transmission power of a different secondary carrier in the carrier group. The control (TPC, TransmissionPowerControl) module specifies, for example, respectively specified by the TPC field of the secondary carrier with the smallest number in the carrier group.

When the control message that needs to be fed back includes HARQ information and CQI, the terminal discards the CQI, and the packet processing module 4023 performs packet processing on the HARQ information, and the mode selection module 4022 allocates the group-processed HARQ information to different resources respectively For uplink transmission, when resource allocation is performed by the resource allocation module 4024, the resources corresponding to each set of HARQ information are specified by the TPC field in a different secondary carrier in the carrier group.

When the control message that needs to be fed back includes HARQ information and scheduling request SR information, the packet processing module 4023 performs packet processing on the HARQ information, and the mode selection module 4022 jointly encodes the SR information and the HARQ information of the carrier group including the primary carrier, The HARQ information of other carrier groups is transmitted on the original HARQ resources. When the resource allocation module 4024 allocates resources, SR resources and HARQ resources are respectively used for allocation. The resources corresponding to each group of HARQ information are respectively assigned by TPC field assignment in a different secondary carrier within a carrier group.

If the carrier detection module 4021 detects that only the main carrier needs to perform data transmission or SPS release signaling transmission, then when the control message that needs to be fed back includes only HARQ information, the mode selection module 4022 allocates the HARQ information to a resource for transmission, When resource allocation is performed by the resource allocation module 4024, an uplink control channel resource is determined by using the number of the control channel unit of the uplink control channel on the primary carrier or the TPC indication of semi-persistent scheduling; for example, when there is a primary and secondary carrier in the carrier group, the In the resource indication mode in the prior art, if all the carrier groups are secondary carriers, the corresponding channel resources are determined according to the TPC fields in the secondary carriers according to the sequence of carrier numbers.

When the control message that needs to be fed back includes HARQ information and CQI, and supports simultaneous transmission of CQI and HARQ, the mode selection module 4022 selects CQI information groups corresponding to multiple downlink carriers for feedback, and selects HARQ information and a set of CQI to be transmitted The format is adjusted to Format2a or Format2b for multiplexing transmission, and the rest of the CQI groups use Format2, or all CQI groups and HARQ information use Format2a or Format2b multiplexing transmission. Specifically, there is only one group of HARQ information, and the CQIs of different groups carry the same The group of HARQ information adopts Format2a or Format2b for multiplex transmission; in resource allocation, it is allocated according to multiple sets of CQI resources; specifically, if the HARQ information value selects a CQI resource for multiplex transmission, it can be based on the CQI corresponding to the carrier number Make a selection, let the selected CQI carry the HARQ information for transmission on the corresponding CQI resource; if simultaneous transmission is not supported, all CQI feedback is discarded. In the prior art, different types of information originally have different resources. If a portability transmission method is selected, a part of resources will be saved and the resource utilization rate will be improved.

When the control message that needs to be fed back includes HARQ information and SR information, the mode selection module 4022 adjusts the transmission format to Format1a or Format1b on the SR resource for transmission, and when resource allocation is performed by the resource allocation module 4024, semi-persistent scheduling is used in the SR Resources are allocated.

If the transmission format of the feedback information is Format1b and channel selection, then when the control message that needs to be fed back only includes HARQ information, the packet processing module 4023 performs packet processing on the HARQ information, and the mode selection module 4022 divides the HARQ information after packet processing Assigned to different resources for transmission, when the resource allocation module 4024 performs resource allocation, the multi-part resources are respectively determined by the numbers of the control channel elements of the primary and secondary carriers in different carrier groups or the TPC field indication; for example, when there are For the primary and secondary carriers, the resource indication method in the prior art is followed. If all the carrier groups are secondary carriers, the corresponding channel resources are determined according to the sequence of carrier numbers and the TPC field in the secondary carriers.

If the transmission format of the feedback information is Format1b and channel selection, then when the control message that needs to be fed back includes HARQ information and CQI, and supports simultaneous transmission of CQI and HARQ, the mode selection module 4022 performs group processing on the HARQ information, And select the CQI information group corresponding to multiple downlink carriers for feedback, select a CQI for the HARQ information that needs to be fed back for each carrier group to perform joint coding and modulation, and use Format2b transmission on the CQI resource, and the resource allocation module 4024 performs resource allocation When using CQI resources, allocation is made according to CQI resources; specifically, when Format1a/1b is selected and transmitted simultaneously with CQI, HARQ information is only 2 bits, which can be carried and transmitted by CQI; if simultaneous transmission is not supported, all CQI feedback is discarded. Whoever carries it will use its resources. Therefore, in this type of method, one CQI may be selected to be carried, or multiple CQIs may be selected to be carried, and the resources of the original CQI are used.

If the transmission format of the feedback information is Format1b and channel selection, then when the control message that needs to be fed back includes HARQ information and SR information, the packet processing module 4023 performs packet processing on the HARQ information, and the mode selection module 4022 selects the channel that includes the main carrier The HARQ information of the carrier group is transmitted on the SR resources, and the HARQ information corresponding to the remaining carrier groups is transmitted on the original resources. When the resources are allocated by the resource allocation module 4024, the information transmitted on the SR resources is allocated by semi-static scheduling. , and the rest are specified by the TPC field in the secondary carrier.

If the transmission format of the information to be fed back is Format2, and the control message to be fed back only includes CQI, the mode selection module 4022 allocates the CQIs corresponding to N carriers to different resources for transmission, and N is equal to the number of resources, and N It is an integer greater than 1. When the resource allocation module 4024 allocates resources, the semi-persistent scheduling method is used for allocation. The number of resources occupied by the CQI of each carrier has a definite correspondence with the number of the carrier.

If the transmission format of the information to be fed back is Format1, and the control message to be fed back only includes SR information, then the mode selection module 4022 transmits the SR information on one resource, and when resource allocation is performed by the resource allocation module 4024, the The above SR information is allocated to SR resources.

The present invention obtains the information type and transmission format that need to be fed back to the base station through the configuration information and scheduling information of the uplink control channel transmission between the base station and the terminal, and determines the transmission mode of uplink multi-resource transmission according to the information type and transmission format And the resource allocation method enables the terminal to reasonably allocate channel resources for different information types and transmission formats, so that the channel resources are optimally configured.

In the several embodiments provided in this application, it should be understood that the disclosed devices and methods may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit. The above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.

If the integrated unit is realized in the form of a software function unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , including several instructions to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-OnlyMemory), random access memory (RAM, RandomAccessMemory), magnetic disk or optical disk and other media that can store program codes.

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. Should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (10)

1. A method for transmitting an uplink control channel, comprising: The terminal obtains the control information and the transmission format selected based on the uplink control channel; The terminal allocates channel resources of the uplink control channel according to the control information and the transmission format; before the terminal allocates channel resources for the uplink control channel according to the control information and the transmission format, Including: the terminal receives an indication message sent by the base station, the indication message is used to instruct the terminal to determine the transmission mode of the uplink control channel when performing the transmission of the uplink control channel, and the transmission mode of the uplink control channel Including uplink multi-resource transmission mode and uplink single-resource transmission mode; The terminal transmits the control information to the base station based on channel resources of the uplink control channel. 2. The method according to claim 1, wherein, before the terminal allocates channel resources for the uplink control channel according to the control information and the transmission format, the steps include: The terminal acquires the total number of carriers configured for downlink data transmission according to the configuration information of the base station, and/or the total number of bits of HARQ information that needs to be fed back to the base station; the terminal according to the total number of carriers, and/or the total number of bits to determine the transmission mode of the uplink control channel, where the transmission mode of the uplink control channel includes an uplink multi-resource transmission mode and an uplink single-resource transmission mode. 3. The method according to claim 1, wherein when the control information includes HARQ information, and the transmission format selected based on the uplink control channel is Format3, the terminal according to the control information and the The transmission format is used to allocate channel resources for the uplink control channel, including: When the terminal and the base station perform uplink control channel transmission, the terminal detects whether only the main carrier performs data transmission or semi-persistent scheduling releases SPSrelease signaling transmission; If not only the primary carrier performs data transmission or SPSrelease signaling transmission, then when the control information only contains HARQ information, the terminal performs group processing on the HARQ information, and distributes the group-processed HARQ information to multiple The channel resource of the uplink control channel is transmitted, and the channel resource of the uplink control channel used for the grouped HARQ information is specified by the transmission power control TPC field of the secondary carrier; When the control information includes HARQ information and channel quality information CQI, the terminal discards the CQI, and performs packet processing on the HARQ information, assigns the HARQ information after packet processing to different resources for transmission, and performs During resource allocation, the resources of each group of HARQ information are specified by the TPC field in a secondary carrier in the corresponding carrier group; When the control information includes HARQ information and scheduling request SR information, the terminal performs grouping processing on the HARQ information, jointly encodes the SR information and the HARQ information group of the carrier group including the main carrier, and puts them into SR resources The HARQ information of the remaining carrier groups is transmitted on the original HARQ resources. When resource allocation is performed, SR resources and HARQ resources are used for allocation, and the resources of each group of HARQ information are allocated by a different secondary carrier in the corresponding carrier group. The TPC domain specified in; If only the main carrier performs data transmission or SPS release signaling transmission, then when the control information only includes HARQ information, the terminal allocates the HARQ information to a resource for transmission, and uses the uplink control on the main carrier when allocating resources. The number of the control channel element of the channel or the TPC field indication of the semi-persistent scheduling determines an uplink control channel resource; When the information type includes HARQ information and CQI, and supports simultaneous transmission of CQI and HARQ, the terminal selects CQI information corresponding to multiple downlink carriers for feedback, and selects HARQ information and CQI corresponding to one downlink carrier in the transmission format Format2a Or Format2b multiplex transmission, the rest of the CQI groups use Format2, or all CQI groups and HARQ information use Format2a or Format2b multiplex transmission, when resource allocation, allocate according to multiple CQI resources; if simultaneous transmission is not supported, discard All CQI feedback; When the control information includes HARQ information and SR information, the terminal adjusts the transmission format to Format1a or Format1b on the SR resource for transmission, and uses semi-persistent scheduling to allocate the SR resource during resource allocation. 4. The method according to claim 1, wherein if the control information includes HARQ information, and the transmission format is Format1b and channel selection, the terminal allocates a channel according to the control information and the transmission format for The channel resources of the uplink control channel include: When the control information only includes HARQ information, the terminal performs group processing on the HARQ information, and allocates the HARQ information after group processing to different resources for transmission. The numbers of the control channel units of the main carrier and the auxiliary carrier in the carrier group or the TPC field indication are determined; When the control information includes HARQ information and CQI, and supports simultaneous transmission of CQI and HARQ, the terminal processes the HARQ information into groups, and selects the CQI information corresponding to multiple downlink carriers for feedback, and the terminal sends each carrier group For the HARQ information that needs to be fed back, select a group of CQIs for joint coding and modulation, and use Format2b transmission on the CQI resources. When performing resource allocation, allocate according to the CQI resources; if simultaneous transmission is not supported, discard all CQI feedback; When the control information includes HARQ information and SR information, the terminal processes the HARQ information into groups, selects the HARQ information of the carrier group including the primary carrier to transmit on the SR resource, and transmits the HARQ information corresponding to the remaining carrier groups in the original When the resource is allocated, the information transmitted on the SR resource is allocated by the semi-persistent scheduling method, and the rest is specified by the TPC field in the auxiliary carrier. 5. The method according to any one of claims 1 to 2, wherein if the transmission format is Format2 and the control information only includes CQI, the terminal The transmission format allocates channel resources for the uplink control channel, including: The terminal selects the CQIs corresponding to N carriers and assigns them to different resources for transmission respectively. The N is equal to the number of CQI resources, and the N is an integer greater than 1. When performing resource allocation, a semi-persistent scheduling method is used for allocation. 6. The method according to any one of claims 1 to 2, wherein if the transmission format is Format1, and the control information only includes SR information, the terminal The transmission format is used to allocate channel resources for the uplink control channel, including: The terminal transmits the SR information on one resource, and allocates the SR information to the SR resource when performing resource allocation. 7. The method according to claim 3 or 4, wherein said performing group processing on the HARQ information comprises: The HARQ information is grouped according to the configured total number of downlink carriers or information bits. 8. A terminal, characterized in that, comprising: A first acquiring unit, configured to acquire control information and a transmission format selected based on an uplink control channel; an allocation unit, configured to allocate channel resources of the uplink control channel according to the control information and the transmission format; The terminal further includes: an indication receiving unit, configured to receive an indication message sent by a base station, where the indication message is used to instruct the terminal to determine a transmission mode of the uplink control channel when transmitting the uplink control channel, so The transmission mode of the uplink control channel includes an uplink multi-resource transmission mode and an uplink single-resource transmission mode; The terminal further includes a unit for transmitting the control information to the base station based on the channel resource of the uplink control channel. 9. The terminal according to claim 8, further comprising: The second acquiring unit is configured to acquire the total number of carriers configured for downlink data transmission according to the configuration information of the base station, and/or the total number of bits of HARQ information that needs to be fed back to the base station; The selection unit is used for the terminal to determine the transmission mode of the uplink control channel according to the total number of carriers and/or the total number of bits, and trigger the first acquisition unit if the uplink multi-resource transmission mode is used. 10. The terminal according to claim 8, wherein the allocating unit comprises: The carrier detection module is used to detect whether only data transmission or SPS release signaling needs to be transmitted on the downlink main carrier, and select the module according to the trigger mode of the detection result for corresponding processing; The mode selection module is used to determine the transmission mode of the uplink multi-resource transmission according to the control information and the transmission format. If it needs to be allocated to multiple resources for transmission, then trigger the packet processing module; if it only needs to be allocated to a single resource for transmission , then directly trigger the resource allocation module; A grouping processing module, configured to perform grouping processing on HARQ information according to the number of carriers or the total number of information bits; The resource allocation module is configured to allocate resources to the information that needs to be fed back according to the selection result of the mode selection module.