CN105812108B - Control signaling sending method, base station, terminal and system of large-scale antenna system - Google Patents
Control signaling sending method, base station, terminal and system of large-scale antenna system Download PDFInfo
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Abstract
The invention discloses a control signaling sending method, a base station, a terminal and a system of a large-scale antenna system, wherein the method comprises the following steps: dividing the user terminals in the activated state into one or more user terminal groups, setting group numbers, and numbering the user terminals in each user terminal group; when the control signaling is sent, sending a group physical downlink control channel G-PDCCH signaling to each user terminal group; the G-PDCCH signaling comprises the following steps: a user terminal grouping index, a user terminal scheduling indication and user terminal scheduling information. The control signaling sending method, the base station, the terminal and the system of the large-scale antenna system can obviously reduce the expense of the control signaling, reduce the consumption of resources and improve the utilization rate of the resources.
Description
Technical Field
The present invention relates to the field of mobile communications technologies, and in particular, to a method, a base station, a terminal, and a system for sending a control signaling for a large-scale antenna system.
Background
With the rapid development of mobile communication technology, it is expected that mobile data traffic will increase 500-fold and 1000-fold in the year 2020, and the 5G system needs to correspondingly increase network capacity to meet the explosive increase demand of data service. The applications with large bandwidth, such as ultra-high definition video, video conference, mass data sharing, 3D games, etc., put higher demands on the communication rate. The 5G system needs to support higher data rates to support future large bandwidth services and provide and guarantee a higher, fairer rate experience for each user in the network. Higher efficiency: in the future, the network will face the contradiction between the surge of capacity demand and the shortage of frequency spectrum, and 5G needs to further improve the utilization efficiency of frequency spectrum, including improving the efficiency of air interface frequency spectrum and improving the frequency use mode. More connections: various new types of services, new types of terminals and machine type communication services will greatly increase the number of connected devices in the network and consume a large amount of network resources. 5G systems need to be able to support more online users and a large number of device connections.
A large-scale antenna (Massive MIMO) is one of the most effective technologies meeting the 5G requirement, corresponding research has been carried out abroad, a large-scale antenna special subject group is established by domestic IMT-2020(5G) propulsion group for research, and 3D-MIMO research has also been started by 3 GPP. The large-scale antenna can improve the frequency spectrum efficiency and relieve the problem of frequency spectrum shortage to a certain extent; the large-scale antenna can improve the network capacity and meet the increasing demand of mobile data service; the large-scale antenna can improve the rate of edge users and improve the coverage of cells; the large-scale antenna can improve the number of simultaneous online users.
In the current LTE system, multi-user MIMO (MU-MIMO) supports at most 4 users to simultaneously multiplex the same resource; a control signaling PDCCH indication is needed for a data channel PDSCH of each user; the large-scale antenna realizes multi-user spatial multiplexing gain by multiplexing the same resources by more users, thereby improving the spectrum efficiency; the number of multiplexed users will be up to 10 or more; different RBs can be distributed to different users, and the number of users multiplexed at the same time is more. In a large-scale antenna system, because a plurality of users are multiplexed at the same time, a large amount of control signaling PDCCHs are needed according to the current standard, so that a large amount of resources are consumed, and the use efficiency of the resources is seriously influenced. 1 PDCCH may consist of 1/2/4/8 CCEs, each CCE occupies 36 REs, assuming that on average 1 PDCCH occupies 3 CCEs, then 1 PDCCH occupies 1.3% in 10MHz bandwidth, and then the overhead of PDCCH consumed by 10 users is about 13%, considering that different RBs may be divided into different users and multiplexed users may exceed 10, the overhead of actual PDCCH may reach 20% or more, which seriously affects resource usage rate.
Disclosure of Invention
In view of this, a technical problem to be solved by the present invention is to provide a method for sending control signaling for a large-scale antenna system, in which only one G-PDCCH signaling is sent for each ue group.
A control signaling sending method of a large-scale antenna system comprises the following steps: dividing the user terminals in the activated state into one or more user terminal groups and setting group numbers; numbering the user terminals in each user terminal group; when the control signaling is sent, sending a group physical downlink control channel G-PDCCH signaling to each user terminal group; wherein, the G-PDCCH signaling comprises: a user terminal grouping index, a user terminal scheduling indication and user terminal scheduling information.
According to an embodiment of the invention, further, a numerical interval of the MIMO-C-RNTI is set; the G-PDCCH signaling is scrambled by the MIMO-C-RNTI.
According to an embodiment of the present invention, further, when it is determined that the rule for sending the PDCCH signaling is satisfied, sending a PDCCH signaling of a physical downlink control channel to the user equipment; wherein the compliance with the PDCCH signaling transmission rule comprises: the number of the user terminals in the activated state is smaller than a preset number threshold, the data flow of the user terminals exceeds a preset flow threshold, and the data sent by the user terminals need to be sent repeatedly.
According to an embodiment of the invention, further, a numerical value interval of the cell radio network temporary identifier C-RNTI is set; the PDCCH signaling is scrambled by the C-RNTI.
According to an embodiment of the present invention, further, when the user equipment receives a control command, it is detected that the received control signaling is the G-PDCCH signaling or the G-PDCCH signaling based on the MIMO-C-RNTI and the C-RNTI.
According to an embodiment of the present invention, further, when the ue detects that the received control signaling is the G-PDCCH signaling, it determines whether to be scheduled according to the ue group index and the ue scheduling indication obtained from the G-PDCCH signaling; if so, acquiring the user terminal scheduling information from the G-PDCCH signaling according to the number of the user terminal; wherein the user terminal scheduling information comprises: resource allocation information, MCS, DM-RS information, HARQ information.
According to an embodiment of the present invention, further, when the ue detects that the received control signaling is the PDCCH signaling, the ue acquires scheduling information from the PDCCH signaling.
The technical problem to be solved by the present invention is to provide a base station, which only sends one G-PDCCH signaling for each user terminal group.
A base station, comprising: a terminal grouping unit for grouping the user terminals in an activated state into one or more user terminal groups and setting group numbers; numbering the user terminals in each user terminal group; a control signaling sending unit, configured to send a group physical downlink control channel G-PDCCH signaling for each user terminal group when sending a control signaling; wherein, the G-PDCCH signaling comprises: a user terminal grouping index, a user terminal scheduling indication and user terminal scheduling information.
According to an embodiment of the present invention, further, the scrambling unit is configured to set a value interval of a MIMO-C-RNTI; the G-PDCCH signaling is scrambled by the MIMO-C-RNTI.
According to an embodiment of the present invention, further, the control signaling sending unit is further configured to send a physical downlink control channel PDCCH signaling to the user terminal when it is determined that the PDCCH signaling sending rule is met; wherein the compliance with the PDCCH signaling transmission rule comprises: the number of the user terminals in the activated state is smaller than a preset number threshold, the data flow of the user terminals exceeds a preset flow threshold, and the data sent by the user terminals need to be sent repeatedly.
According to an embodiment of the present invention, further, the scrambling unit is configured to set a value interval of a cell radio network temporary identity C-RNTI; the PDCCH signaling is scrambled by the C-RNTI.
One technical problem to be solved by the present invention is to provide a terminal capable of receiving G-PDCCH signaling.
A terminal, comprising: a signaling detection unit, configured to detect whether a received control signaling is a G-PDCCH signaling; a scheduling information obtaining unit, configured to, when it is detected that the received control signaling is the G-PDCCH signaling, determine whether to be scheduled according to a user terminal packet index and a user terminal scheduling indication obtained from the G-PDCCH signaling; if so, acquiring the user terminal scheduling information from the G-PDCCH signaling according to the number of the user terminal; wherein the user terminal scheduling information comprises: resource allocation information, MCS, DM-RS information, HARQ information.
According to an embodiment of the present invention, further, the signaling detecting unit is configured to detect whether the received control signaling is a PDCCH signaling; and the scheduling information acquisition unit is used for acquiring scheduling information from the PDCCH signaling when the received control signaling is detected to be the PDCCH signaling.
According to an embodiment of the present invention, the signaling detecting unit is further configured to detect that the received control signaling is the G-PDCCH signaling or the G-PDCCH signaling based on the MIMO-C-RNTI and the C-RNTI.
A communication system, comprising: the base station and the terminal are as described above.
The control signaling sending method, the base station, the terminal and the system of the large-scale antenna system can obviously reduce the expense of the control signaling, reduce the consumption of resources and improve the utilization rate of the resources.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a flowchart of an embodiment of a control signaling method of a large-scale antenna system according to the present invention;
fig. 2 is a schematic diagram of grouping ues in a control signaling transmission method according to a large-scale antenna system;
fig. 3 is a schematic diagram of scrambling using MIMO C-RNTI according to a control signaling transmission method of a large-scale antenna system;
fig. 4 is a schematic structural diagram of an embodiment of a base station according to the present invention;
fig. 5 is a schematic structural diagram of an embodiment of a mobile terminal according to the present invention.
Detailed Description
The present invention now will be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the invention are shown. The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. The technical solution of the present invention is described in various aspects below with reference to various figures and embodiments.
The large-scale antenna system is a large-scale MIMO, which is called a massive MIMO or large-scale MIMO system. The adoption of the existing PDCCH requires a large amount of control signaling overhead, affecting the resource utilization rate. At present, the PDCCH in the LTE system has different formats, for example, format 2B for downlink resource allocation is shown in table 1 below:
| Field | Bit(s) |
| Resource allocation header | 1(0for BW<＝10PRBs) |
| Resource block assignment | Ceiling(NRB/P) |
| TPC command for PUCCH | 2 |
| Downlink Assignment Index | 2(For TDD only) |
| HARQ process number | 3bits(FDD),4bits(TDD) |
| TB1MCS | 5 |
| TB1NDI | 1 |
| TB1RV | 2 |
| TB2MCS | 5 |
| TB2NDI | 1 |
| TB2RV | 2 |
| DM-RS ports and SCID | 3 |
table 1-format 2B table for downlink resource allocation
Fig. 1 is a flowchart of an embodiment of a method for transmitting control signaling of a large-scale antenna system according to the present invention, as shown in fig. 1:
And 103, when the control signaling is sent, sending a group physical downlink control channel G-PDCCH signaling to each user terminal group.
The G-PDCCH signaling comprises the following steps: user terminal grouping index, user terminal scheduling indication, user terminal scheduling information and the like.
The control signaling sending method of the large-scale antenna system in the above embodiment sends one G-PDCCH signaling to each user terminal group, which can reduce the overhead of the control signaling and improve the utilization rate of resources.
The PDCCH carries scheduling and other control signaling, including transport format, resource allocation, uplink scheduling grant, power control, and uplink retransmission information. The PDCCH channel is a set of physical resource particles, uplink and downlink control information is borne on the PDCCH channel, common control information and special control information are distinguished by PDCCH bearing information according to different action domains, PDCCH information of different terminals is distinguished by corresponding RNTI information, namely the crc of DCI is scrambled by the RNTI.
In a large-scale antenna system, a numerical range of a MIMO-C-RNTI (multiple input multiple output cell radio network temporary identifier) is set, and G-PDCCH (general packet control channel) signaling is scrambled by the MIMO-C-RNTI.
As shown in fig. 2, the user terminals are divided into several groups and numbered, for example, Group1 …, N, … N. The user terminals within each group are numbered, e.g., UE 1 … K, … K. When the base station sends the control signaling PDCCH, each group only sends one PDCCH, namely G-PDCCH signaling. The G-PDCCH signaling indicates which group, which users within the group, are scheduled.
As shown in FIG. 3, MIMO-C-RNTI is defined, and G-PDCCH is scrambled by MIMO-C-RNTI. And the MIMO-C-RNTI is a group cell radio network temporary identifier. And scrambling through the MIMO-C-RNTI, monitoring the PDCCH by the user terminal, identifying the G-PDCCH by checking the MIMO-C-RNTI, reading a user terminal grouping index and a user terminal scheduling indication of the G-PDCCH, and acquiring own scheduling information.
PDCCH information of different terminals is distinguished through corresponding RNTI information, and the crc of the DCI is scrambled by the C-RNTI. And the C-RNTI is a cell radio network temporary identifier. And G-PDCCH information of different groups is distinguished by corresponding MIMO-C-RNTIs, and the crc of the DCI is scrambled by the MIMO-C-RNTIs.
In one embodiment, the basic structure of the G-PDCCH is shown in table 2 below: including resource allocation category, resource allocation information, user terminal grouping index, user terminal scheduling indication, user terminal scheduling information (HARQ process number, MCS, DM-RS information, etc.).
TABLE 2 basic structure table of G-PDCCH
And when the judgment is in accordance with the PDCCH signaling sending rule, sending a physical downlink control channel PDCCH signaling to the user terminal. And setting a numerical value interval of a cell radio network temporary identifier C-RNTI, wherein PDCCH signaling is scrambled by the C-RNTI. Compliance with the PDCCH signaling transmission rules includes: the number of the user terminals in the activated state is smaller than a preset number threshold, the data traffic of the user terminals exceeds a preset traffic threshold, the data sent by the user terminals needs to be sent repeatedly, and the like.
The base station may select whether to transmit PDCCH or G-PDCCH, and the basic criteria may be: when the number of users in scheduling is small, the PDCCH is adopted, for example, the number of users is smaller than the number of groups of packets. Otherwise, the G-PDCCH is adopted. The PDCCH is used when there are many data streams transmitted by a certain user (this situation rarely occurs in Massive MIMO). Otherwise, the G-PDCCH is adopted. When data transmitted by a user needs to be retransmitted, a PDCCH and the like are adopted.
In one embodiment, the base station triggers the transmission of the G-PDCCH through higher layer signaling, and informs the user of the packet index to which the user belongs and the number in a certain packet. The base station decides whether to adopt the PDCCH or the G-PDCCH according to a criterion. And when the user terminal receives the control instruction, detecting that the received control signaling is G-PDCCH signaling or G-PDCCH signaling based on the MIMO-C-RNTI and the C-RNTI.
And when the user terminal detects that the received control signaling is G-PDCCH signaling, judging whether the control signaling is scheduled or not according to the user terminal grouping index and the user terminal scheduling indication which are obtained from the G-PDCCH signaling. And if so, acquiring the scheduling information of the user terminal from the G-PDCCH signaling according to the number of the user terminal. The user terminal scheduling information includes: resource allocation information, MCS, DM-RS information, HARQ information, etc. And when the user terminal detects that the received control signaling is PDCCH signaling, acquiring scheduling information from the PDCCH signaling.
And the user terminal judges whether a high-level signaling triggering the G-PDCCH is received or not, and if so, the user terminal respectively attempts to detect the PDCCH and the G-PDCCH by using the C-RNTI and the MIMO-C-RNTI. After detecting the G-PDCCH, the user terminal reads the grouping index, reads the corresponding position in the G-PDCCH according to the number of the user terminal in the grouping, judges whether the user terminal is scheduled or not, and reads corresponding scheduling information, such as resource allocation information, MCS, DM-RS information, HARQ information and the like. And if not, the user terminal detects the PDCCH by using the C-RNTI.
In one embodiment, assume that there are 100 user terminals in a massive antenna (256 antenna) system, of which 20 are active and 10 are scheduled simultaneously. According to the existing PDCCH, 1 PDCCH, i.e. 10 PDCCHs, needs to be transmitted for each user terminal, and the signaling overhead is about 13%.
With the G-PDCCH, 20 ues are divided into 4 groups of 5 ues each. If the user terminals on the scheduling are distributed in 2 groups, only 2G-PDCCHs are needed at the time, the signaling overhead is about 2.6 percent, and compared with the existing PDCCH, the overhead is reduced by about 10.4 percent. If the user terminals on the scheduling are distributed in 3 groups, only 3G-PDCCHs are needed at the time, the signaling overhead is about 3.9 percent, and the overhead is reduced by about 9.1 percent compared with the existing PDCCH. If the user terminals on the scheduling are distributed in 3 groups, only 3G-PDCCHs are needed at the time, the signaling overhead is about 5.2%, and compared with the existing PDCCH, the overhead is reduced by about 7.8%. The use of the G-PDCCH can significantly reduce the overhead of control signaling.
As shown in fig. 4, the present invention provides a base station 21. The terminal grouping unit 221 groups the user terminals in an active state into one or more user terminal groups and sets a group number. And numbering the user terminals in each user terminal group. When sending the control signaling, the control signaling sending unit 212 sends a group physical downlink control channel G-PDCCH signaling for each user terminal group.
The G-PDCCH signaling comprises the following steps: user terminal grouping index, user terminal scheduling indication, user terminal scheduling information and the like. The scrambling unit 213 sets a value interval of the MIMO cell radio network temporary identity MIMO-C-RNTI. The G-PDCCH signaling is scrambled by MIMO-C-RNTI.
When the PDCCH signaling rule is judged to be satisfied, the control signaling sending unit 212 sends a physical downlink control channel PDCCH signaling to the ue. Compliance with the PDCCH signaling transmission rules includes: the number of the user terminals in the activated state is smaller than a preset number threshold, the data traffic of the user terminals exceeds a preset traffic threshold, the data sent by the user terminals needs to be sent repeatedly, and the like. The scrambling unit 213 sets a value interval of the cell radio network temporary identity C-RNTI. The PDCCH signaling is scrambled by the C-RNTI.
As shown in fig. 5, the present invention provides a terminal 31. The signaling detection unit 311 detects whether the received control signaling is G-PDCCH signaling. When detecting that the received control signaling is a G-PDCCH signaling, scheduling information obtaining unit 312 determines whether to be scheduled according to a user terminal packet index and a user terminal scheduling indication obtained from the G-PDCCH signaling.
If so, the scheduling information obtaining unit 312 obtains the ue scheduling information from the G-PDCCH signaling according to the ue number. The user terminal scheduling information includes: resource allocation information, MCS, DM-RS information, HARQ information.
The signaling detection unit 311 detects whether the received control signaling is PDCCH signaling. When detecting that the received control signaling is PDCCH signaling, scheduling information obtaining unit 312 obtains scheduling information from PDCCH signaling. The signaling detection unit 311 detects that the received control signaling is G-PDCCH signaling or G-PDCCH signaling based on MIMO-C-RNTI and C-RNTI.
The present invention provides a communication system comprising: such as the base station and the user terminal.
The method, the base station, the terminal and the system for transmitting the control signaling of the large-scale antenna system can obviously reduce the overhead of the control signaling, reduce the consumption of resources and improve the utilization rate of the resources.
The method and system of the present invention may be implemented in a number of ways. For example, the methods and systems of the present invention may be implemented in software, hardware, firmware, or any combination of software, hardware, and firmware. The above-described order for the steps of the method is for illustrative purposes only, and the steps of the method of the present invention are not limited to the order specifically described above unless specifically indicated otherwise. Furthermore, in some embodiments, the present invention may also be embodied as a program recorded in a recording medium, the program including machine-readable instructions for implementing a method according to the present invention. Thus, the present invention also covers a recording medium storing a program for executing the method according to the present invention.
The description of the present invention has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to practitioners skilled in this art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (9)
1. A method for sending control signaling of a large-scale antenna system is characterized by comprising the following steps:
dividing the user terminals in the activated state into one or more user terminal groups and setting group numbers; numbering the user terminals in each user terminal group;
when the control signaling is sent, sending a group physical downlink control channel G-PDCCH signaling to each user terminal group; wherein, the G-PDCCH signaling comprises: user terminal grouping index, user terminal scheduling indication and user terminal scheduling information;
setting a numerical value interval of a radio network temporary identifier MIMO-C-RNTI of a multi-input multi-output cell; the G-PDCCH signaling is scrambled by the MIMO-C-RNTI;
when the PDCCH signaling sending rule is judged to be met, sending a Physical Downlink Control Channel (PDCCH) signaling to the user terminal;
setting a numerical value interval of a cell radio network temporary identifier C-RNTI; the PDCCH signaling is scrambled by the C-RNTI; when a user terminal receives a control instruction, detecting that the received control signaling is the G-PDCCH signaling or the G-PDCCH signaling based on the MIMO-C-RNTI and the C-RNTI;
when the user terminal detects that the received control signaling is the G-PDCCH signaling, judging whether the control signaling is scheduled or not according to a user terminal grouping index and a user terminal scheduling indication which are obtained from the G-PDCCH signaling;
and if so, acquiring the user terminal scheduling information from the G-PDCCH signaling according to the number of the user terminal.
2. The method of claim 1, wherein:
the sending the PDCCH signaling rule comprises: the number of the user terminals in the activated state is smaller than a preset number threshold, the data flow of the user terminals exceeds a preset flow threshold, and the data sent by the user terminals need to be sent repeatedly.
3. The method of claim 2, wherein:
the user terminal scheduling information includes: resource allocation information, MCS, DM-RS information, HARQ information.
4. The method of claim 3, wherein:
and when the user terminal detects that the received control signaling is the PDCCH signaling, acquiring scheduling information from the PDCCH signaling.
5. A base station, comprising:
a terminal grouping unit for grouping the user terminals in an activated state into one or more user terminal groups and setting group numbers; numbering the user terminals in each user terminal group;
a control signaling sending unit, configured to send a group physical downlink control channel G-PDCCH signaling for each user terminal group when sending a control signaling; wherein, the G-PDCCH signaling comprises: user terminal grouping index, user terminal scheduling indication and user terminal scheduling information;
the scrambling unit is used for setting a numerical value interval of a radio network temporary identifier MIMO-C-RNTI of a multi-input multi-output cell; the G-PDCCH signaling is scrambled by the MIMO-C-RNTI;
the control signaling sending unit is also used for sending a Physical Downlink Control Channel (PDCCH) signaling to the user terminal when judging that the PDCCH signaling sending rule is met;
the scrambling unit is used for setting a numerical value interval of a cell radio network temporary identifier C-RNTI; the PDCCH signaling is scrambled by the C-RNTI;
when a user terminal receives a control instruction, detecting that the received control signaling is the G-PDCCH signaling or the G-PDCCH signaling based on the MIMO-C-RNTI and the C-RNTI; when the user terminal detects that the received control signaling is the G-PDCCH signaling, judging whether the control signaling is scheduled or not according to a user terminal grouping index and a user terminal scheduling indication which are obtained from the G-PDCCH signaling; and if so, acquiring the user terminal scheduling information from the G-PDCCH signaling according to the number of the user terminal.
6. The base station of claim 5, wherein:
the compliance with the sending PDCCH signaling rules includes: the number of the user terminals in the activated state is smaller than a preset number threshold, the data flow of the user terminals exceeds a preset flow threshold, and the data sent by the user terminals need to be sent repeatedly.
7. A terminal, comprising:
a signaling detection unit, which is used for detecting that the received control signaling is G-PDCCH signaling or PDCCH signaling based on MIMO-C-RNTI and C-RNTI;
a scheduling information obtaining unit, configured to, when it is detected that the received control signaling is the G-PDCCH signaling, determine whether to be scheduled according to a user terminal packet index and a user terminal scheduling indication obtained from the G-PDCCH signaling; if so, acquiring the user terminal scheduling information from the G-PDCCH signaling according to the number of the user terminal;
the base station sets a numerical value interval of a radio network temporary identifier MIMO-C-RNTI of a multi-input multi-output cell, and the G-PDCCH signaling is scrambled by the MIMO-C-RNTI; the G-PDCCH signaling comprises: user terminal grouping index, user terminal scheduling indication and user terminal scheduling information; the user terminal scheduling information includes: resource allocation information, MCS, DM-RS information and HARQ information;
when the judgment is in accordance with the PDCCH signaling sending rule, sending a Physical Downlink Control Channel (PDCCH) signaling to the user terminal; setting a numerical value interval of a cell radio network temporary identifier C-RNTI; the PDCCH signaling is scrambled by the C-RNTI.
8. The terminal of claim 7, wherein:
the signaling detection unit is used for detecting whether the received control signaling is PDCCH signaling;
and the scheduling information acquisition unit is used for acquiring scheduling information from the PDCCH signaling when the received control signaling is detected to be the PDCCH signaling.
9. A communication system, comprising:
the base station according to any of claims 5 to 6, the terminal according to any of claims 7 to 8.
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| WO2018120161A1 (en) * | 2016-12-30 | 2018-07-05 | 广东欧珀移动通信有限公司 | Method and device for transmitting uplink control information |
| CN107223319A (en) * | 2017-04-28 | 2017-09-29 | 北京小米移动软件有限公司 | Transmission, acquisition methods and the device of common downlink control information |
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| CN102726110A (en) * | 2010-02-10 | 2012-10-10 | 高通股份有限公司 | Multi-user control channel assignment |
| CN103733711A (en) * | 2011-07-29 | 2014-04-16 | 富士通株式会社 | Control channel for wireless communication |
| CN102932299A (en) * | 2011-08-08 | 2013-02-13 | 普天信息技术研究院有限公司 | Transmission method for physical downlink control channel |
| CN103002579A (en) * | 2011-09-08 | 2013-03-27 | 华为技术有限公司 | Control information transmission method, base station and user equipment |
| US8774848B2 (en) * | 2011-10-11 | 2014-07-08 | Fujitsu Limited | System and method for enhancing cell-edge performance in a wireless communication network |
| CN102387598A (en) * | 2011-10-19 | 2012-03-21 | 新邮通信设备有限公司 | Method for scheduling physical downlink control channel (PDCCH) |
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