WO2017101632A1 - Signal processing method and apparatus - Google Patents

Abstract

The present invention provides a signal processing method and apparatus. The method comprises: determining narrowband control channel resources; and performing grouping and pairing of resources units in the determined narrowband control channel resources, and processing signals borne on the grouped and paired resources units. By means of the present invention, the problems of waste of resources and low utilization rate of the resources when signals are transmitted by using control channel units determined in the prior art are resolved, so that more proper control channel resource units are determined in a narrowband system, thereby avoiding the waste of resources and improving the utilization rate of the resources.

Description

Signal processing method and device Technical field

The present invention relates to the field of communications, and in particular to a signal processing method and apparatus.

Background technique

Machine Type Communication (MTC), also known as Machine to Machine (M2M), Narrow Band Internet of Things (NB-IoT) is the main application form of the Internet of Things. . The characteristics of the communication system are generally narrower than that of the Long Term Evolution (LTE) system, such as 1.4 MHz, 200 kHz, etc.; the number of user terminals or devices (User Equipment, UE for short) is large. Including traditional handheld terminals as well as machines, sensor terminals, etc.; with coverage enhancement requirements, including coverage improvement of 15dB or 20dB.

Such communication systems typically require either independent operation or coexistence with an LTE system. The transmission bandwidth and the downlink subcarrier spacing of the NB-IoT are 180 kHz and 15 kHz, respectively, which are the same as the bandwidth and subcarrier spacing of one physical resource block (Physical Resource Block, PRB) of the LTE system, respectively, which is beneficial to the NB-IoT. In the system, the related design of the existing LTE system is reused. When the spectrum of the Global System for Mobile Communication (GSM) reused by the NB-IoT system is adjacent to the spectrum of the LTE system, it is also beneficial to reduce the two systems. Interfere with each other.

The downlink data transmission and uplink data transmission of the terminal are scheduled by using the downlink grant (Downlink grant, DL grant) and the uplink grant (Uplink grant, UL grant) respectively. The DL grant and the UL grant are collectively referred to as Downlink Control Information (DCI), and the physical downlink control channel (Physical Downlink Control Channel, PDCCH for short) or the Enhanced Physical Downlink Control Channel (Enhanced Physical Downlink Control Channel). Hosted for EPDCCH). The downlink data is carried in the Physical Downlink Shared Channel (PDSCH), and the uplink data is carried in the Physical Uplink Shared Channel (PUSCH). In the existing LTE system, the PDCCH uses the resources in the first 1-4 orthogonal frequency division multiplexing (OFDM) symbols of the system bandwidth, and the control channel element (CCE) is used as the basic aggregation. Resource granularity, the transmission method uses transmit diversity. The EPDCCH uses resources in a part of the PRBs in the system bandwidth to enhance the Control Channel Element (ECCE) as the basic aggregate resource granularity, and the transmission mode uses centralized transmission or distributed transmission.

The downlink transmission mode needs to be applied to three working scenarios (in-band in the LTE system band, guard-band in the LTE system, and standalone in the LTE system). The control channels in the existing LTE system are not suitable for the requirements in the narrowband system. When the control channel unit determined by the prior art performs signal transmission, resources are wasted and the resource utilization rate is low. For the NB-IoT system with narrow bandwidth, how to support the downlink control channel in the above three scenarios using transmit diversity mode transmission and how to determine the downlink control channel in the narrowband system The control channel unit currently lacks an effective solution.

When the signal transmission is performed by the control channel unit determined by the prior art, the problem of waste of resources and low resource utilization rate has not yet been proposed.

Summary of the invention

The present invention provides a signal processing method and apparatus, which at least solves the problem of waste of resources and low resource utilization rate when signal transmission is performed by using a control channel unit determined by the prior art.

According to an aspect of the present invention, a signal processing method includes: determining a narrowband control channel resource; performing packet pairing of resource units in the determined narrowband control channel resource, and carrying on a resource unit paired with the packet The signal is processed.

Optionally, performing packet pairing of resource units in the determined narrowband control channel resource includes at least one of: grouping resource units in the same resource unit group; and different resource units in the same control channel unit Resource units in a group perform packet pairing; grouping resource units in different control channel units.

Optionally, grouping the resource units in the same resource unit group includes at least one of: grouping pairing the even number of resource units in the same resource unit group; and all resource units in the same resource unit group Group pairing.

Optionally, grouping the resource units in the different resource unit groups in the same control channel unit includes at least one of: resource elements adjacent to the frequency domain in an even number of resource unit groups in the same control channel unit. Perform packet pairing; group pairing resource elements adjacent to the frequency domain in all resource element groups in the same control channel unit.

Optionally, performing packet pairing on resource units in different control channel units includes at least one of: grouping resource units in a resource unit group adjacent to a frequency domain in different even-numbered frequency domain adjacent control channel units - grouping resource elements in resource element groups adjacent to the frequency domain in all control channel elements.

Optionally, when the type of the pilot is at least one of a narrowband reference signal NB-RS, a long term evolution cell reference signal LTE CRS, and a long term evolution demodulation reference signal LTE DMRS, the resource unit group in the narrowband control channel resource Determining by at least one of the following methods: a resource unit RE other than the resource occupied by the pilot in a physical resource block PRB is repeated in the frequency domain from low to high in the order of the frequency domain after the first frequency domain 0- X, the REs with the same sequence number form the same resource unit group, where the X is a positive integer; the REs other than the resources occupied by the pilots in one PRB are in the frequency domain according to the order of the time domain after the first frequency domain. From low to high, the same number of the same number 0-Y is repeated N times, and the same number of REs constitute the same resource unit group, wherein the N is an even number and Y is a positive integer; there is no pilot in a PRB. Determining, on the occupied orthogonal frequency division multiplexing OFDM symbol, M1 resource unit groups in units of consecutive N REs in the frequency domain from low to high or high to low; on the OFDM symbol occupied by the pilot From low to high or high to low in the frequency domain N RE or non-contiguous N REs determine M2 resource unit groups, or when there are an odd number of REs remaining in the frequency domain, the REs in the non-frequency domain edge or the consecutive 2 REs in the frequency domain are in the frequency domain from low to The M3 resource unit groups of N RE sizes are high or high to low, wherein the M1, M2, M3, and Z are all positive integers, and the N is an even number.

Optionally, the value of the N is at least one of the set {2, 4, 8}; and/or, the values of the M1, M2, and M3 are all sets {1, 2, 3, 4, At least one of 5, 6}.

Optionally, the control channel unit is composed of two or more resource unit groups, wherein when the number of the resource unit groups is an integer multiple of 4, the resource units in each control channel unit in one subframe or one PRB are formed. The number of groups is the same, wherein the resource unit groups in the respective control channel units are selected by equal spacing in all resource unit groups or consecutively selected or partially consecutive portions; and/or when the resource unit group When the number is a non-integer multiple of 4, the number of resource unit groups in each control channel unit constituting one subframe or one PRB is not completely the same.

Optionally, when the number of the resource unit groups is a non-integer multiple of 4, the number of resource unit groups in each control channel unit that constitutes one subframe or one PRB is determined by a fixed composition manner or a dynamic composition manner, where The dynamic composition mode includes determining, by the system message block SIB or the radio resource control RRC configuration, implicitly determining according to the subframe number, implicitly determining according to the radio frame number, and determining according to at least one of the detection window number implicit determination. the way.

Optionally, when a resource unit RE included in a group of resource unit groups conflicts with other signals or channels, determining whether the RE or the resource unit group to which the RE belongs is available by at least one of: according to a predefined Determining, at least one of the resource unit group to which the RE belongs, the control channel unit to which the RE belongs, and the control channel to which the RE belongs, and the priority of the other signal or channel; determining according to signaling Determining, by the RE, the resource unit group to which the RE belongs, the control channel unit to which the RE belongs, and at least one of the control channels to which the RE belongs, wherein the signaling includes a system message block SIB or wireless Resource Control RRC.

Optionally, the available situation of the at least one of the RE, the resource unit group to which the RE belongs, the control channel unit to which the RE belongs, and the control channel to which the RE belongs includes at least one of the following: a resource unit where the RE is located The group is unavailable; only the RE and the paired RE paired with the RE are unavailable in the resource unit group to which the RE belongs; only the RE is unavailable in the resource unit group to which the RE belongs, where the RE The other REs other than the REs in the associated resource unit group are used for single port transmission or paired with other REs in other resource unit groups, and the control channel unit to which the RE belongs is not available; the control channel to which the RE belongs may not be used. use.

Optionally, the number of resource unit groups included in one control channel unit is determined according to at least one of a subframe type, an application scenario, and a cyclic prefix type, and includes at least one of the following: the quantity is greater than that in a normal subframe. The number of resource unit groups included in the channel unit; when the one control channel unit uses the same resource unit group as the normal subframe, the number is configured with a larger aggregation level.

Optionally, determining, according to the application scenario, the number of resource unit groups included in one control channel unit includes: when the application scenario is an In-band scenario in a long-term evolution LTE system band, the one control channel unit The number of resource unit groups included is greater than the number of resource unit groups included in the control channel unit when the application scenario is the stand-alone frequency band standalone and/or the application scenario is the guard band guard-band of the LTE system.

According to another aspect of the present invention, a signal processing apparatus is provided, comprising: a determining module configured to determine a narrowband control channel resource; and a processing module configured to perform grouping of resource units in the determined narrowband control channel resource And processing the signals carried on the resource units of the packet pairing.

According to another aspect of the present invention, a base station is provided, the base station comprising the signal processing apparatus described above.

According to another aspect of the present invention, a terminal is provided, the terminal comprising the signal processing device described above.

Embodiments of the present invention also provide a storage medium. Optionally, in this embodiment, the foregoing storage medium stores an execution instruction, where the execution instruction is used to perform one or a combination of the steps in the foregoing method embodiments.

Through the present invention, the narrowband control channel resource is determined; the packet pairing of the resource unit is performed in the determined narrowband control channel resource, and the signal carried on the resource unit of the packet pairing is processed. The problem that the resource is wasted and the resource utilization rate is low when the control channel unit determined by the prior art is used for signal transmission, thereby achieving a more suitable control channel resource unit in the narrowband system, thereby avoiding resource waste. To improve the efficiency of resource use.

DRAWINGS

The drawings described herein are intended to provide a further understanding of the invention, and are intended to be a part of the invention. In the drawing:

1 is a flow chart of a signal processing method according to an embodiment of the present invention;

2 is a schematic diagram of packet pairing of resource units according to Embodiment 1 of the present invention;

3 is a schematic diagram of packet pairing of resource units according to Embodiment 2 of the present invention;

4 is a schematic diagram of packet pairing of resource units according to Embodiment 3 of the present invention;

5 is a schematic diagram of packet pairing of resource units according to Embodiment 5 of the present invention;

6 is a schematic diagram of packet pairing of resource units according to Embodiment 6 of the present invention;

7 is a schematic diagram of packet pairing of resource units according to Embodiment 7 of the present invention;

8 is a schematic diagram of packet pairing of resource units according to Embodiment 8 of the present invention;

9 is a schematic diagram of packet pairing of resource units according to Embodiment 9 of the present invention;

FIG. 10 is a schematic diagram of packet pairing of resource units according to Embodiment 10 of the present invention; FIG.

11 is a block diagram showing the structure of a signal processing apparatus according to an embodiment of the present invention;

FIG. 12 is a structural block diagram of a processing module 114 in a signal processing apparatus according to an embodiment of the present invention; FIG.

FIG. 13 is a structural block diagram of a first packet pairing unit 122 in a signal processing apparatus according to an embodiment of the present invention;

FIG. 14 is a structural block diagram of a second packet pairing unit 124 in a signal processing apparatus according to an embodiment of the present invention;

FIG. 15 is a structural block diagram of a third packet pairing unit 126 in a signal processing apparatus according to an embodiment of the present invention;

16 is a structural block diagram of a base station according to an embodiment of the present invention;

FIG. 17 is a structural block diagram of a terminal according to an embodiment of the present invention.

detailed description

The invention will be described in detail below with reference to the drawings in conjunction with the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.

It is to be understood that the terms "first", "second" and the like in the specification and claims of the present invention are used to distinguish similar objects, and are not necessarily used to describe a particular order or order.

A signal processing method is provided in this embodiment. FIG. 1 is a flowchart of a signal processing method according to an embodiment of the present invention. As shown in FIG. 1, the process includes the following steps:

Step S102, determining a narrowband control channel resource;

Step S104: Perform packet pairing of resource units in the determined narrowband control channel resources, and process signals carried on the resource units that are paired by the packets.

Through the above steps, packet pairing of resource units is performed in the determined narrowband control channel resources, and signal processing is performed by using the resource unit after packet pairing, and the resource unit can be effectively utilized for signal transmission by grouping the resource units. Therefore, the resource waste is effectively avoided, and the problem of waste of resources and low resource utilization rate when the control channel unit determined by the prior art is used for signal transmission is solved, thereby determining a more suitable control channel resource unit in the narrowband system. To avoid the waste of resources and improve the efficiency of resource use.

The above operation may be performed by a base station or a terminal. When the foregoing operation is performed by the base station, processing the signal carried on the resource unit of the packet pairing may include performing layer mapping and precoding on the signal carried on the resource unit of the packet pairing, and sending the processed signal to the signal. Corresponding terminal; when the terminal performing the above operation is performed, processing the signal carried on the resource unit of the packet pairing may include receiving the signal of the bearer on the corresponding resource unit, and performing corresponding decoding and the like on the signal. The layer mapping and precoding processing manners include: a frequency diversity block code (SFBC), a frequency selective transmission diversity (SFBC+FSTD), and a frequency switching transmission diversity (Frequency Switch Transmit Diversity, abbreviated as follows). For FSTD), the time selection transmission diversity SFBC+TSTD mode (Time Switched Transmit Diversity, referred to as TSTD).

In an optional embodiment, performing packet pairing of resource units in the determined narrowband control channel resource includes at least one of: grouping resource units in the same resource unit group; and pairing the same control channel unit Resource units in different resource unit groups are grouped and paired; resource units in different control channel units are grouped and paired. It should be noted that the packet pairing manners of the foregoing resource units are exemplified, and other packet pairing manners may also be adopted. The following describes the packet pairing manners of the foregoing resource units:

In an optional embodiment, grouping the resource units in the same resource unit group includes at least one of: pairing even-numbered resource units in the same resource unit group; and grouping the same resource unit All resource units in the group are grouped. Wherein, in the foregoing manner of grouping pairing the even number of resource units in the same resource unit group, the “even number of resource units” may be adjacent even number of resource units, where “adjacent” may Including number neighboring, frequency domain neighboring, time domain neighboring, priority frequency domain adjacent re-time domain neighboring, etc.; the "even number of resource units" may also be the nearest even number of positions, wherein "recent" may include The number is closest, the frequency domain is closest, the time domain is closest, the priority frequency domain is the most recent time domain, and so on.

In an optional embodiment, grouping resource elements in different resource unit groups in the same control channel unit includes at least one of: frequency domain in an even number of resource unit groups in the same control channel unit The adjacent resource units perform packet pairing; grouping the resource units adjacent to the frequency domain in all resource unit groups in the same control channel unit.

In an optional embodiment, grouping resource elements in different control channel units includes at least one of: in a resource unit group adjacent to a frequency domain adjacent to a different number of frequency domain adjacent control channel units The resource unit performs packet pairing; grouping the resource units in the resource unit group adjacent to the frequency domain in all control channel units.

The following describes the grouping manner of the above resource units:

For example, the method for determining the same group of SFBC-encoded resource elements (Resource Element, referred to as RE) when the control channel unit and/or the resource unit group are sent in the diversity transmission mode includes one of the following methods:

An even number of REs in the same resource unit group;

An RE in an even number of frequency domain adjacent resource unit groups in the same control channel unit;

REs in adjacent frequency resource groups in the frequency domain adjacent to the control channel elements in different even frequency domains.

In an optional embodiment, when the type of the pilot is a narrowband reference signal (Narrow Band Reference Signal, NB-RS for short), a long term evolution cell reference signal (LTE CRS), a long term evolution demodulation reference signal LTE At least one of the DMRS (Demodulation Reference Signal), the resource unit group in the narrowband control channel resource is determined by at least one of the following: a resource unit other than the resource occupied by the pilot in one physical resource block PRB The REs are in the frequency domain from the low-to-high repetition number 0-X in the order of the time domain after the first frequency domain, and the REs with the same sequence number form the same resource unit group, where X is a positive integer; The REs other than the resources occupied by the frequency are in the frequency domain from the low to the high in the order of the time domain of the first frequency domain, and the same sequence number 0-Y is consecutively repeated N times, and the REs with the same serial number form the same resource unit group, wherein N is an even number, and Y is a positive integer; determining, in a frequency domain, from low to high or high to low in consecutive frequency of OFDM symbols occupied by the pilot in a PRB. M1 resource unit groups; determining M2 resource unit groups in units of consecutive N REs or non-contiguous N REs in the frequency domain from low to high or high to low on the OFDM symbols with pilot occupation, or When there are an odd number of REs in the frequency domain, the REs of the non-frequency domain edge or the consecutive 2 REs in the frequency domain form a M3 resource unit group of N RE sizes in the frequency domain from low to high or high to low. M1, M2, M3, and Z are all positive integers, and N is an even number. The NB-RS is applicable to the demodulation pilot dedicated to the narrowband NB-IoT system, and may be a public type of the cell, such as a CRS type, or may be a UE-specific type, such as a DMRS type. The pilot port corresponding to the pilot may include at least one of the ports 1, 2, and 4.

For example, three resource element groups are determined in units of four consecutive REs in the frequency domain from low to high on an OFDM symbol without pilots in one PRB, and are in the frequency domain on the OFDM symbols with pilot occupation. Low to high for 4 consecutive RE or Two consecutive two RE groups are determined in units of one or two resource unit groups or when the odd-numbered REs remain in the frequency domain, the REs in the non-frequency domain edge or the continuous 2RE in the frequency domain are composed of low to high in the frequency domain. One or two resource unit groups of RE size. In the PRB, each resource unit group is numbered in the order of the time domain after the frequency domain.

In an optional embodiment, the value of N is at least one of the set {2, 4, 8}; in another optional embodiment, the values of the foregoing M1, M2, and M3 may be It is at least one of the collections {1, 2, 3, 4, 5, 6}. Of course, the set of values enumerated in this embodiment is only a preferred embodiment, and other sets of values may be used.

In an optional embodiment, the control channel unit is composed of two or more resource unit groups, wherein when the number of resource unit groups is an integer multiple of 4, each of the control channel units in one subframe or one PRB is formed. The number of resource unit groups is the same, wherein the resource unit groups in each of the foregoing control channel units are selected at equal intervals in all resource unit groups, or consecutively selected or partially continuous, for example, one subframe contains 36 narrowband resource unit groups NB-REG (or may also be referred to as MREG, where M represents MTC machine type communication), at this time 4 narrow-band control channel units NB-CCE (or MCCE, also referred to as MCCE) The M indicates that the MTC machine type communication) NB-CCE each contains 9 NB-REGs, preferably, equally spaced NB-REGs. For example, for a resource unit group consisting of 4 REs, the NB-REG is divided into 36. Considering the unavailable REs as far as possible, the NB-REG numbers for one MCCE are {0, 4, 8, 12, 16, 20 , 24, 28, 32}. That is, NB-REG is selected at equal intervals. It is also possible to continuously select NB-REG to form NB-CCE. For example, the number of NB-REGs for one MCCE is {0, 1, 2, 3, 4, 5, 6, 7, 8}. Alternatively, a contiguous portion of the NB-REG may be selected to form an NB-CCE at equal intervals. For example, the NB-REG number for one MCCE is {0, 1, 8, 9, 16, 17, 24, 25, 32}.

Similarly, for 2 REs or 8 REs to form a resource unit group, the method is similar.

Similarly, it can be used when EREG is composed of ECCE, and the method is similar.

It should be noted that, in the embodiment of the present invention, the “control channel unit” may be a general term for CCE, ECCE, NB-CCE, and MCCE. The “resource unit group” may be a collective name of REG, Enhanced Resource Element Group (EREG), NB-REG, and MREG.

In another optional embodiment, when the number of resource unit groups is a non-integer multiple of 4, the number of resource unit groups in each control channel unit constituting one subframe or one PRB is not completely the same. Optionally, when the number of the resource unit groups is a non-integer multiple of 4, the number of resource unit groups in each control channel unit that constitutes one subframe or one PRB is determined by a fixed component manner or a dynamic composition manner, where The dynamic composition mode includes a system information block (SIB) or a radio resource control (Radio Resource Control, RRC for short) configuration, an implicit determination according to the subframe number, and an implicit determination according to the radio frame number. The manner of determining based on at least one of the detection window number implicit determination. For example, if there are 38 NB-REGs in one subframe, the four NB-CCEs can allocate NB-REGs at a fixed time. For example, NB-CCE0 and 1 each contain 10 (or other quantities, or NB-CCE0). The number of NB-CCE1s may also be different. NB-REG, NB-CCE2, 3 contain 9 (or other quantities, or the number of NB-CCE2 and NB-CCE3 may also be different) NB-REG, this Preferably, NB-REG is selected at equal intervals. Or determining, according to the subframe number, that the NB-CCE includes the number of NB-REGs, for example, NB-CCE0 and 1 in even subframes have 10 (or other numbers, or the number of NB-CCE0 and NB-CCE1 may be different) )NB-REG, NB-CCE2, 3 contain 9 (or other quantities, or NB-CCE2 and NB-CCE3 may not be the same number) NB-REG, NB-CCE2, 3 in odd-numbered subframes contain 10 (or other The number, or the number of NB-CCE2 and NB-CCE3 may also be different) NB-REG, NB-CCE0, 1 contain 9 (or other quantities, or the number of NB-CCE0 and NB-CCE1 may not Same) NB-REG.

In an optional embodiment, when the resource unit RE included in a group of resource unit groups conflicts with other signals or channels, the RE or the resource unit group to which the RE belongs may be determined by at least one of the following manners: Determining according to a pre-defined RE, a resource unit group to which the RE belongs, a control channel unit to which the RE belongs, a control channel to which the RE belongs, and a priority of another signal or channel; and determining the RE and RE according to the signaling notification And determining, by the resource unit group, the control channel unit to which the RE belongs, and at least one of the control channels to which the RE belongs, wherein the signaling includes a system message block SIB or a radio resource control RRC. Optionally, the available conditions of the foregoing RE, the resource unit group to which the RE belongs, the control channel unit to which the RE belongs, and at least one of the control channels to which the RE belongs include at least one of the following: the resource unit group in which the RE is located is unavailable; the resource unit to which the RE belongs Only the RE and the paired RE paired with the RE are not available in the group; only the REs in the resource unit group to which the RE belongs are not available, wherein the REs other than the REs in the resource unit group to which the RE belongs belong to the single port transmission or The remaining RE pairs in other resource unit groups are used; the control channel unit to which the RE belongs is not available; the control channel to which the RE belongs is not available. E.g:

The legacy physical downlink control channel Legacy PDCCH has a high priority, and the narrowband physical downlink control channel NB-PDCCH does not use the entire NB-REG occupied by the legacy PDCCH. The legacy cell reference signal Legacy CRS has a high priority, and the remaining NB-REGs in the OFDM symbol are respectively 2, 3, and 3 REs (two, three, and three REs are left in order from low to high). (1) The REG for the odd RE performs the SF-REG pairing SFBC on the same NB-CCE, that is, the two RE pairs in the NB-REG0, and the respective 3REs in the NB-REG4 and the NB-REG12 are paired with each other. (2) For better SFBC, one adjacent RE is deleted for the remaining 3RE NB-REG, and the remaining two RE pairs are encoded.

If the CB-RS is configured for the PRB where the NB-IoT is located, the number of ports is up to 2 or 4. Referring to the existing port pattern, there will be 1 or 2 NB-REGs with the remaining 3REs. Regardless of whether it is based on NB-CRS or LTE CRS, when CSI-RS is configured in the PRB, the available REs in the NB-REG are changed to three. (1) odd RE pairing coding in two NB-REGs; (2) knocking out adjacent REs of CSI-RS, and remaining 2REs in NB-REG for pairing coding. (3) Kill the CSI-RS.

The OFDM symbols in which the PRS is located are paired and separated by 5 REs, resulting in the occurrence of odd REs of 3 REs in 2 of the 2 or 3 NB-REGs on the OFDM symbol. (1) The NB-CCE is coded across the NB-REG paired RE; (2) the CSI-RS neighboring RE is destroyed, and the remaining 2REs in the NB-REG are paired and coded. (3) Beat the PRS.

In an optional embodiment, the number of resource unit groups included in one control channel unit is determined according to at least one of a subframe type, an application scenario, and a cyclic prefix type, including at least one of the following: The number of resource unit groups included in the control channel unit in the subframe; when one control channel unit uses the same resource unit group as the normal subframe, the above number is configured with a larger aggregation level. E.g:

For a special subframe and in the case of a normal cyclic prefix (Cyclic Prefix, CP for short), the special subframe configuration 3, 4, and 8 is the same as the normal normal subframe. For special subframe configurations 1, 2, 6, 7, and 9, the following methods are used:

(1) 1NB-CCE=18NB-REG (the existing method, expanding the number of NB-REGs included in the NB-CCE);

(2) Configure a larger aggregation level (that is, the NB-CCE includes the same number of NB-REGs as the normal subframe, and configures a larger aggregation level in the special subframe);

When extending a CP, whether it is a special subframe or a normal subframe, the following methods are used:

(1) 1NB-CCE=18NB-REG (the existing method, expanding the number of NB-REGs included in the NB-CCE);

(2) Configure a larger aggregation level (that is, the NB-CCE includes the same number of NB-REGs as the normal subframe, and configures a larger aggregation level in the special subframe);

And similar to the existing protocol, when the CP is extended, only the configurations 1, 2, 3, 5, and 6 are supported when using the special subframe;

For a Standalone/guard-band scenario, the physical broadcast channel (PBCH)/Primary Synchronization Signal (PSS)/Secondary Synchronization Signal (SSS) is in the subframe. The first three OFDM symbols, and the normal CPs in the special subframe are configured with 0, 5 and the extended CP. 0, 4 are configured as follows:

(1) 1NB-CCE=36NB-REG (the existing method, expanding the number of NB-REGs included in the NB-CCE);

(2) Configure a larger aggregation level, such as AL=4ECCE.

In an optional embodiment, determining the number of resource unit groups included in one control channel unit according to an application scenario includes: when the application scenario is an In-band scenario in a long-term evolution LTE system band, the foregoing one control channel The number of resource unit groups included in the unit is greater than the number of resource unit groups included in the control channel unit when the application scenario is the stand-alone frequency band standalone and/or the application scenario is the guard band guard-band located in the LTE system. For example, 1NB-CCE=18NB-REG in an In-band scenario, 1NB-CCE=9NB-REG in a standalone or guard-band scenario. In the case of an In-band scenario, 1NB-CCE=8NB-REG, standalone or guard-band scenario, 1NB-CCE=4NB-REG.

The present invention will be described below in conjunction with specific embodiments:

Embodiment 1

This embodiment is directed to the case where the number of ports is 4 based on DMRS. The REs other than the DMRS occupied resources in one PRB are numbered 0-X1 in the order of the time domain after the first frequency domain, and the REs with the same sequence number form the same resource unit group.

Optionally, X1 = 15. The four resource unit groups constitute one control channel unit. The downlink uses the transmit diversity mode for transmission, and the adjacent REs in the same EREG perform SFBC coding (that is, the adjacent REs in the same EREG perform packet pairing).

In order to implement the transmit diversity transmission mode, adjacent REs in the same EREG perform SFBC coding. 2 is a schematic diagram of packet pairing of resource units according to the first embodiment of the present invention. As shown in FIG. 2, since one EREG contains 9 REs, one RE is destroyed at this time (it may also be referred to as wasting one RE, ie, There is one RE not used) to complete 4 sets of SFBC encoding. At this time, the same pair of SFBC encoded REs are not adjacent.

By using the method described in this embodiment, the transmission diversity transmission mode is implemented when the resource unit group has an odd number of REs. There is a waste of resources at this time.

Embodiment 2

This embodiment is directed to the case where the number of ports is 4 based on DMRS. For a PRB, except for the DMRS occupation resources, the REs are numbered 0-X2 in the order of the time domain after the frequency domain, and the REs with the same sequence number form the same resource unit group.

Optionally, X2 = 15. The four resource unit groups constitute one control channel unit. The downlink uses the transmit diversity method for transmission, and the adjacent REs in two adjacent EREGs in the same ECCE perform SFBC coding.

In order to implement the transmit diversity transmission mode, the REs of adjacent EREGs in the same OFDM symbol or adjacent OFDM symbols and one ECCE intermediate frequency domain are SFBC-coded. This operation can solve the pairing RE problem. FIG. 3 is a schematic diagram of packet pairing of resource units according to Embodiment 2 of the present invention. As shown in FIG. 3, 9 groups of SFBC codes are completed using REs in 2 adjacent REGs in one ECCE. At this time, the same pair of SFBC encoded REs are not adjacent.

By using the method described in this embodiment, the transmission diversity transmission mode is implemented when the resource unit group has an odd number of REs. Realize resource pairing and no waste.

Embodiment 3

This embodiment is directed to the case where the number of ports is 4 based on DMRS. For a PRB, except for the DMRS occupation resources, the REs are numbered 0-X2 in the order of the time domain after the frequency domain, and the REs with the same sequence number form the same resource unit group.

Optionally, X2=15. The four consecutive resource unit groups constitute one control channel unit, for example, ECCE0 is composed of EREG0, 1, 2, and 3. The downlink uses the transmit diversity method for transmission, and the adjacent REs in two or four EREGs in the same ECCE perform SFBC coding.

In order to implement the transmit diversity transmission mode, the REs of adjacent EREGs in the same OFDM symbol or adjacent OFDM symbols and one ECCE intermediate frequency domain are SFBC-coded. This operation can solve the pairing RE problem. 4 is a schematic diagram of packet pairing of resource units according to Embodiment 3 of the present invention. As shown in FIG. 4, 9 groups of SFBC codes are completed by using REs in 2 or 4 adjacent REGs in one ECCE. At this time, the same pair of SFBC-encoded REs are adjacent.

By using the method described in this embodiment, the transmission diversity transmission mode is implemented when the resource unit group has an odd number of REs. Realize resource pairing and no waste. And the paired resource units are adjacent in the frequency domain.

Embodiment 4

This embodiment is directed to the case where the number of ports is 4 based on DMRS. For a PRB, except for the resources occupied by the DMRS, the REs are numbered 0-X3 in the order of the time domain after the first frequency domain, and the REs with the same sequence number form the same resource unit group.

Optionally, X3 = 15. The four resource unit groups constitute one control channel unit. The downlink uses the transmit diversity method for transmission, and the adjacent REs in two adjacent EREGs in two or four ECCEs perform SFBC coding.

In order to implement the transmit diversity transmission mode, the REs of adjacent EREGs in the same OFDM symbol and the two ECCE intermediate frequency domains are SFBC-encoded. This operation can solve the pairing RE problem. As shown in FIG. 4 described above, at this time, EREG0 of ECCE0 and RE of EREG1 of ECCE1 are paired to encode SFBC. At this time, 9 sets of SFBC codes are completed using one of the two ECCEs and the REs in the adjacent EREGs in the frequency domain. At this time, the same pair of SFBC-encoded REs are adjacent in the frequency domain.

By using the method described in this embodiment, the transmission diversity transmission mode is implemented when the resource unit group has an odd number of REs. Realize resource pairing and no waste. And the paired resource units are adjacent in the frequency domain.

Embodiment 5

This embodiment is directed to the case where the number of ports is 4 based on DMRS. For a PRB except for the DMRS occupied resources, the REs are repeated four times in the order of the first-frequency domain and the time-domain, and the REs with the same sequence number 0-Y are consecutively composed of the same resource unit group.

Optionally, Y=35. The 9 resource unit groups constitute one control channel unit. The downlink uses the transmit diversity method for transmission, and the adjacent REs in one NB-REG in the 1NB-CCE perform SFBC coding. 1NB-CCE=9NB-REG. (At this time, if the number of DMRS ports is 2 and is port7 and 8, Y=38)

Considering that the unavailable REs are scattered as much as possible, the NB-REG number for the 1ECCE is {0, 4, 8, 12, 16, 20, 24, 28, 32}. That is, NB-REG is selected at equal intervals.

In order to implement the transmit diversity transmission mode, the same NB-REG RE is paired for SFBC coding. This operation can solve the pairing RE problem. FIG. 5 is a schematic diagram of packet pairing of resource units according to Embodiment 5 of the present invention. As shown in FIG. 5, the RE pairing code SFBC in each NB-REG. At this time, there is still an NB-REG isolated by the DMRS, and the SFBC at 4Tx crosses the OFDM symbol (OFDM symbol of the pilot position).

The transmit diversity transmission mode is implemented in the same resource element group by using the method described in this embodiment. Realize resource pairing and no waste. And the paired resource units are mostly adjacent in the frequency domain.

Embodiment 6

This embodiment is directed to the case where the number of ports is 2 based on DMRS. Determining three resource element groups in units of consecutive 4 REs in the frequency domain from low to high on an OFDM symbol with no pilot occupancy in one PRB, and from low to high in the frequency domain on the OFDM symbol with pilot occupancy Determine whether 1 or 2 resource unit groups are consecutive for 4 consecutive REs or 2 consecutive adjacent RE groups, or REs with non-frequency domain edges or 2 REs in the frequency domain are low in the frequency domain when residual REs are left in the frequency domain Up to 1 or 2 resource unit groups that make up 4 RE sizes. In the PRB, each resource unit group 0-Z1 is numbered in the order of the time domain after the frequency domain.

Optionally, Z1=37. The RE with the lowest frequency domain number at the OFDM symbol where the pilot is located is not used as a component resource unit group. 9 Or 10 resource unit groups constitute one control channel unit. The downlink uses the transmit diversity method for transmission, and the adjacent REs in one NB-REG in the 1NB-CCE perform SFBC coding.

Considering that the unavailable REs are dispersed as much as possible, the NB-REG number for the 1NB-CCE is {0, 4, 8, 12, 16, 20, 24, 28, 32, 36}. That is, NB-REG is selected at equal intervals.

In order to implement the transmit diversity transmission mode, the same NB-REG RE is paired for SFBC coding. This operation can solve the pairing RE problem. FIG. 6 is a schematic diagram of packet pairing of resource units according to Embodiment 6 of the present invention. As shown in FIG. 6, the RE pairing code SFBC in each NB-REG. At this time, the OFDM symbols of the paired REs are the same, and there is no case of crossing OFDM symbols.

The transmit diversity transmission mode is implemented in the same resource element group by using the method described in this embodiment. Realize resource pairing but there is a waste of resources. And the paired resource units are adjacent in the frequency domain.

Example 7

This embodiment is directed to the case of simultaneously based on two types of pilots. There are DMRS and CRS at the same time. In this embodiment, the DMRS is used, the number of ports is 2, and the number of CRS ports is 2. There are actually four combinations, 2, 4 port CRS and 2, 4 port DMRS.

Determining three resource element groups in units of consecutive 4 REs in the frequency domain from low to high on an OFDM symbol with no pilot occupancy in one PRB, and from low to high in the frequency domain on the OFDM symbol with pilot occupancy Determining 1 or 2 resource unit groups for 4 consecutive REs or 2 consecutive 2 RE units or REs with non-frequency domain edges or 2 REs in the frequency domain in the frequency domain from low to high when remaining odd REs in the frequency domain One or two resource unit groups constituting 4 RE sizes. In the PRB, each resource unit group 0-Z2 is numbered in the order of the time domain after the frequency domain. There are two REGs for CRS and two REGs for DMRS.

Optionally, Z2=33. The remaining OFDM of the OFDM symbol at the OFDM symbol except the pilot occupies the RE in the frequency domain from low to high, and two resource unit groups are determined in units of two consecutive adjacent RE groups, and the pilot OFDM symbol is occupied by the pilot. The REs with the remaining REs outside the RE are odd, and the REs with the lowest time-frequency domain number are not used to form a resource unit group, and the remaining REs constitute two resource unit groups. 8 or 9 resource unit groups constitute one control channel unit. The downlink uses the transmit diversity method for transmission, and the adjacent REs in one NB-REG in the 1NB-CCE perform SFBC coding.

Considering that the unavailable REs are scattered as much as possible, the NB-REG number for the 1NB-CCE is {0, 4, 8, 12, 16, 20, 24, 28, 32}. That is, NB-REG is selected at equal intervals.

In order to implement the transmit diversity transmission mode, the same NB-REG RE is paired for SFBC coding. This operation can solve the pairing RE problem. FIG. 7 is a schematic diagram of packet pairing of resource units according to Embodiment 7 of the present invention. As shown in FIG. 7, the RE pairing code SFBC in each NB-REG. At this time, the OFDM symbols of the paired REs are the same, and there is no case of crossing OFDM symbols.

The transmit diversity transmission mode is implemented in the same resource element group by using the method described in this embodiment. Realize resource pairing but there is a waste of resources. And the paired resource units are adjacent in the frequency domain.

Example eight

The present embodiment is directed to a case where the number of ports is 2 based on CRS, FIG. 8 is a schematic diagram of packet pairing of resource units according to Embodiment 8 of the present invention, and FIG. 8 shows two schematic diagrams of NB-CRS or LTE CRS (ie, FIG. 8 (a) and (b)). For a PRB, except for the CRS occupied resources, the REs are numbered 0-X4 in the order of the time domain after the first frequency domain, and the REs with the same sequence number form the same resource unit group.

Optionally, X4=7. One resource unit group is composed of 19 REs, two resource unit groups constitute one control channel unit, and NB-CCE0 includes NB-REGs as {0, 4}. The downlink uses transmit diversity to transmit.

SFBC coding is performed on adjacent REs in the same NB-REG. In order to implement the transmit diversity transmission mode, adjacent REs in the same NB-REG perform SFBC coding. Since 1 NB-REG contains 19 REs, at this time, one RE is destroyed/wasted to complete 9 sets of SFBC codes. At this time, the same pair of SFBC encoded REs are not adjacent.

Or SFBC coding is performed on neighboring REs in two adjacent NB-REGs in the same NB-CCE. In order to implement the transmit diversity transmission mode, the REs of adjacent NB-REGs in the same OFDM symbol and one NB-CCE intermediate frequency domain are SFBC-coded. This operation can solve the pairing RE problem. At this time, 19 sets of SFBC codes are completed using REs in two adjacent REGs in one NB-CCE. At this time, the same pair of SFBC encoded REs are not adjacent.

Or SFBC coding is performed on adjacent REs in two adjacent NB-REGs in 2 or 4 ECCEs. In order to implement the transmit diversity transmission mode, the REs of adjacent NB-REGs in the same OFDM symbol and the two NB-CCE intermediate frequency domains are SFBC-coded. This operation can solve the pairing RE problem. At this time, the NB-REG0 of NB-CCE0 and the RE pair of NB-REG1 of NB-CCE1 encode SFBC. At this time, 9 sets of SFBC codes are completed using one of the two NB-CCEs and the REs in the adjacent NB-REGs in the frequency domain. At this time, the same pair of SFBC-encoded REs are adjacent in the frequency domain.

By using the method in this embodiment, all REs except the pilot are used as the control channel unit or the resource unit group when the CRS pilot is used, and the transmission diversity transmission mode is implemented when the resource unit group has an odd number of REs.

Example nine

This embodiment is directed to the case where the number of ports is 2 based on CRS. 9 is a schematic diagram of packet pairing of resource elements according to Embodiment 9 of the present invention, and FIG. 9 shows two schematic diagrams of NB-CRS or LTE CRS (ie, (a) and (b) in FIG. 9). Determining three resource element groups in units of consecutive 4 REs in the frequency domain from low to high on an OFDM symbol with no pilot occupancy in one PRB, and from low to high in the frequency domain on the OFDM symbol with pilot occupancy Two resource unit groups are determined by two consecutive two RE groups in succession. In the PRB, each resource unit group 0-Z3 is numbered in the order of the time domain after the frequency domain.

Optionally, Z3=37. 9 or 10 resource unit groups constitute one control channel unit. The downlink uses the transmit diversity method for transmission, and the adjacent REs in one NB-REG in the 1NB-CCE perform SFBC coding.

Consider the unavailability of REs to be dispersed as much as possible, and select NB-REG at equal intervals. For example, the NB-REG number for 1NB-CCE is {0, 4, 8, 12, 16, 20, 24, 28, 32, 36}.

At this time, there are 38 NB-REGs. When fixed allocation is used, NB-CCE0 and 1 in one PRB contain 10 NB-REGs, and NB-CCE2 and 3 include 9 NB-REGs, as shown in Table 8. NB-REG0 and NB-REG1 are usually occupied by the Legacy PDCCH in the Inband scenario, and are additionally added to NB-CCE0 and NB-CCE1 in the standalone/guard-band.

Dynamic allocation: dynamic allocation according to at least one of a subframe number, a radio frame number, a detection window number, and the like. Considering that the control channel is repeatedly transmitted using the same NB-CCE, try to use the resources as much as possible. Taking the subframe number as an example, the resource mapping in the even subframe is as shown in Table 1. In the odd subframe, NB-CCE2 and 3 are allocated 10 NB-REGs, and NB-CCE0 and 1 are assigned 9 NB-REGs.

Table 1

In order to implement the transmit diversity transmission mode, the same NB-REG RE is paired for SFBC coding. This operation can solve the pairing RE problem. The RE pair in each NB-REG encodes SFBC. At this time, the OFDM symbols of the paired REs are the same, and there is no case of crossing OFDM symbols.

The transmit diversity transmission mode is implemented in the same resource element group by using the method described in this embodiment. Implement resource pairing. And the paired resource units are adjacent in the frequency domain. In addition, by adjusting the number of resource unit groups constituting the control channel unit in different subframes, the resources using the same control channel unit in the repeated transmission are as equal as possible.

Example ten

This embodiment is directed to the case where the number of ports is 4 based on CRS. FIG. 10 is a schematic diagram of packet pairing of resource units according to Embodiment 10 of the present invention, and FIG. 10 shows two schematic diagrams of NB-CRS or LTE CRS (as shown in (a) and (b) of FIG. 10). Determining three resource element groups in units of consecutive 4 REs in the frequency domain from low to high on an OFDM symbol with no pilot occupancy in one PRB, and from low to high in the frequency domain on the OFDM symbol with pilot occupancy Two resource unit groups are determined by two consecutive two RE groups in succession. In the PRB, each resource unit group 0-Z4 is numbered in the order of the time domain after the frequency domain.

Optionally, Z4=35. 9 or 10 resource unit groups constitute one control channel unit. The downlink uses the transmit diversity method for transmission, and the adjacent REs in one NB-REG in the 1NB-CCE perform SFBC coding.

Consider the unavailability of REs to be dispersed as much as possible, and select NB-REG at equal intervals. For example, the NB-REG number for 1NB-CCE is {0, 4, 8, 12, 16, 20, 24, 28, 32, 36}.

At this time, there are 36 NB-REGs. As shown in Table 2, each NB-REG contains 9 NB-REGs. The NB-REG with the lower number in the Inband scenario is usually occupied by the Legacy PDCCH. In the standalone/guard-band, each NB-REG can be used by the NB-CCE.

Table 2

In order to implement the transmit diversity transmission mode, the same NB-REG RE is paired for SFBC coding. This operation can solve the pairing RE problem. The RE pair in each NB-REG encodes SFBC. At this time, the OFDM symbols of the paired REs are the same, and there is no case of crossing OFDM symbols.

The transmit diversity transmission mode is implemented in the same resource element group by using the method described in this embodiment. Implement resource pairing. And the paired resource units are adjacent in the frequency domain.

In the above-described fifth embodiment to the tenth embodiment, N=4 is taken as an example for description. For the scenario of N=2, it is applicable to the scenario of 2-antenna port transmission. If N=2 is used for 4-antenna port transmission, the same group of SFBC codes use two adjacent resource unit groups, or different time when SFBC+FSTD is executed. Choose a different resource unit group.

Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware, but in many cases, the former is A better implementation. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk, The optical disc includes a number of instructions for causing a terminal device (which may be a cell phone, a computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present invention.

In the embodiment, a signal processing device is also provided, which is used to implement the above-mentioned embodiments and preferred embodiments, and has not been described again. As used below, the term "module" may implement a combination of software and/or hardware of a predetermined function. Although the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.

11 is a block diagram showing the structure of a signal processing apparatus according to an embodiment of the present invention. As shown in FIG. 11, the apparatus includes a determining module 112 and a processing module 114, which will be described below.

The determining module 112 is configured to determine a narrowband control channel resource; the processing module 114 is connected to the determining module 112, configured to perform grouping of resource units in the determined narrowband control channel resources, and pair the resource list of the grouping The signal carried on the element is processed.

FIG. 12 is a structural block diagram of a processing module 114 in a signal processing apparatus according to an embodiment of the present invention. When performing packet pairing of resource units in the determined narrowband control channel resource, the processing module 114 includes at least one of the following units:

The first packet pairing unit 122 is configured to perform grouping pairing of the resource units in the same resource unit group; the second packet pairing unit 124 performs grouping and pairing the resource units in different resource unit groups in the same control channel unit; The three-packet pairing unit 126 performs packet pairing on resource units in different control channel units.

FIG. 13 is a structural block diagram of a first packet pairing unit 122 in a signal processing apparatus according to an embodiment of the present invention. As shown in FIG. 13, the first packet pairing unit 122 includes at least one of the following subunits:

The first packet pairing sub-unit 132 is configured to perform grouping pairing on even-numbered resource units in the same resource unit group; the second packet-matching sub-unit 134 is configured to perform grouping pairing on all resource units in the same resource unit group. .

FIG. 14 is a structural block diagram of a second packet pairing unit 124 in a signal processing apparatus according to an embodiment of the present invention. As shown in FIG. 14, the second packet pairing unit 124 includes at least one of the following subunits:

The third packet pairing sub-unit 142 is configured to perform packet pairing on resource elements adjacent to the frequency domain in an even number of resource unit groups in the same control channel unit; the fourth packet pairing sub-unit 144 is set to be the same control Resource elements adjacent to each other in the frequency domain in all resource element groups in the channel unit perform packet pairing.

FIG. 15 is a structural block diagram of a third packet pairing unit 126 in a signal processing apparatus according to an embodiment of the present invention. As shown in FIG. 15, the third packet pairing unit 126 includes at least one of the following subunits:

The fifth packet pairing sub-unit 152 is configured to perform grouping pairing of resource units in the resource unit group adjacent to the frequency domain in the control channel unit adjacent to the different even frequency domains; the sixth packet pairing sub-unit 154 is set to be The resource units in the resource unit groups adjacent to the frequency domain in all control channel units are group-paired.

In an optional embodiment, when the type of the pilot is at least one of a narrowband reference signal NB-RS, a long term evolution cell reference signal LTE CRS, and a long term evolution demodulation reference signal LTE DMRS, the narrowband control channel resource is used. The resource unit group is determined by at least one of the following methods: the resource unit REs other than the resources occupied by the pilots in one physical resource block PRB are in the frequency domain from low to high in the order of the first frequency domain and the time domain. Repeating the number 0-X, the REs with the same sequence number form the same resource unit group, where X is a positive integer; the REs other than the resources occupied by the pilots in one PRB are in the order of the time domain after the first frequency domain. From the low to the high on the domain, the same sequence number is 0-Y, and the REs with the same sequence number form the same resource unit group, where N is an even number and Y is a positive integer; there is no pilot in a PRB. M1 resource unit groups are determined in units of consecutive N REs in the frequency domain from low to high or high to low on the occupied orthogonal frequency division multiplexing OFDM symbols; in the frequency domain on the OFDM symbols with pilot occupation From low to high or high to low The M2 resource unit groups are determined by the N REs or the non-contiguous N REs, or the REs of the non-frequency domain edge or the 2 consecutive REs in the frequency domain are low in the frequency domain when the odd number of REs remain in the frequency domain. Up to or from high to low, M3 resource unit groups of N RE sizes, wherein the above M1, M2, M3, and Z are positive integers, and N is an even number.

In an optional embodiment, the value of N is at least one of the set {2, 4, 8}; and/or, M1, M2 The value of M3 is at least one of the sets {1, 2, 3, 4, 5, 6}.

In an optional embodiment, the control channel unit is composed of two or more resource unit groups, wherein when the number of the resource unit groups is an integer multiple of 4, each control channel unit in one subframe or one PRB is formed. The number of resource unit groups in the same is the same, wherein the resource unit groups in each of the foregoing control channel units are selected by equal spacing in all resource unit groups or consecutively selected or partially consecutive portions; and/or, when the above resources are When the number of unit groups is a non-integer multiple of 4, the number of resource unit groups in each control channel unit constituting one subframe or one PRB is not completely the same.

In an optional embodiment, when the number of the resource unit groups is a non-integer multiple of 4, the number of resource unit groups in each control channel unit that constitutes one subframe or one PRB is formed by a fixed composition manner or dynamically. Mode determining, wherein the dynamic composition mode comprises: controlling, by the system message block SIB or the radio resource, the RRC configuration, implicitly determining according to the subframe number, implicitly determining according to the radio frame number, and implicitly determining according to the detection window number. A way to make a determination.

In an optional embodiment, when a resource unit RE included in a group of resource units conflicts with other signals or channels, at least one of the resource unit groups to which the RE or the RE belongs may be determined by: The pre-defined RE, the resource unit group to which the RE belongs, the control channel unit to which the RE belongs, and at least one of the control channels to which the RE belongs are determined with the priority of other signals or channels; the RE and RE belonging to the resource unit group determined according to the signaling notification And determining, by the control channel unit to which the RE belongs, and at least one of the control channels to which the RE belongs, wherein the signaling includes a system message block SIB or a radio resource control RRC.

In an optional embodiment, the available conditions of the foregoing RE, the resource element group to which the RE belongs, the control channel unit to which the RE belongs, and at least one of the control channels to which the RE belongs include at least one of the following: the resource unit group in which the RE is located is unavailable; Only the RE and the paired RE paired with the RE are not available in the resource unit group to which the RE belongs; only the REs in the resource unit group to which the RE belongs are not available, and the REs other than the RE in the resource unit group to which the RE belongs are used. Single port transmission or pairing with other REs in other resource unit groups; the control channel unit to which the RE belongs is not available; the control channel to which the RE belongs is not available.

In an optional embodiment, the number of resource unit groups included in one control channel unit is determined according to at least one of a subframe type, an application scenario, and a cyclic prefix type, including at least one of the following: The number of resource unit groups included in the control channel unit in the subframe; when the above one control channel unit uses the same resource unit group as the normal subframe, the above number is configured with a larger aggregation level.

In an optional embodiment, determining the number of resource unit groups included in one control channel unit according to the application scenario includes: when the application scenario is an In-band scenario in a long-term evolution LTE system band, a control The number of resource unit groups included in the channel unit is greater than the number of resource unit groups included in the control channel unit when the application scenario is the stand-alone frequency band standalone and/or the application scenario is the guard band guard-band of the LTE system.

16 is a block diagram showing the structure of a base station according to an embodiment of the present invention. As shown in FIG. 16, the base station 162 includes the signal processing device 164 of any of the above.

17 is a structural block diagram of a terminal according to an embodiment of the present invention. As shown in FIG. 17, the terminal 172 includes any of the above. Signal processing device 164.

It should be noted that each of the above modules may be implemented by software or hardware. For the latter, the foregoing may be implemented by, but not limited to, the foregoing modules are all located in the same processor; or, the modules are located in multiple In the processor.

Embodiments of the present invention also provide a storage medium. Optionally, in the embodiment, the foregoing storage medium may be configured to store program code for performing the following steps:

S1, determining a narrowband control channel resource;

S2: Perform packet pairing of resource units in the determined narrowband control channel resources, and process signals carried on the resource units of the paired packets.

Optionally, in the embodiment, the foregoing storage medium may include, but is not limited to, a USB flash drive, a Read-Only Memory (ROM), and a Random Access Memory (RAM). A variety of media that can store program code, such as a hard disk, a disk, or an optical disk.

Optionally, in this embodiment, the processor executes the steps in the foregoing method embodiments according to the stored program code in the storage medium.

For example, the specific examples in this embodiment may refer to the examples described in the foregoing embodiments and the optional embodiments, and details are not described herein again.

It will be apparent to those skilled in the art that the various modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. The steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Industrial applicability

As described above, a signal processing method and apparatus provided by the embodiments of the present invention have the following beneficial effects: solving the problem of waste of resources and low resource utilization rate when signal transmission is performed by using a control channel unit determined by the prior art. Furthermore, it is achieved that a more suitable control channel resource unit is determined in the narrowband system, thereby avoiding waste of resources and improving resource utilization efficiency.

Claims (16)

A signal processing method includes: Determining narrowband control channel resources; Performing packet pairing of resource units in the determined narrowband control channel resources, and processing signals carried on the resource units of the packet pairing. The method of claim 1, wherein performing packet pairing of resource units in the determined narrowband control channel resources comprises at least one of: Grouping resource units in the same resource unit group; Grouping resource units in different resource unit groups in the same control channel unit; Packet pairing is performed on resource units in different control channel elements. The method of claim 2, wherein grouping the resource units in the same resource unit group comprises at least one of the following: Grouping even-numbered resource units in the same resource unit group; Grouping all resource units in the same resource unit group. The method of claim 2, wherein grouping the resource units in the different resource unit groups in the same control channel unit comprises at least one of the following: Performing packet pairing on resource elements adjacent to the frequency domain in an even number of resource unit groups in the same control channel unit; Grouping pairs of resource elements adjacent to the frequency domain in all resource element groups in the same control channel unit. The method of claim 2, wherein grouping the resource units in the different control channel units comprises at least one of: Performing packet pairing on resource units in resource element groups adjacent to each other in the frequency domain adjacent to different even frequency domain adjacent control channel units; The resource units in the resource unit groups adjacent to the frequency domain in all control channel units are grouped and paired. The method according to claim 2, wherein when the type of the pilot is at least one of a narrowband reference signal NB-RS, a long term evolution cell reference signal LTE CRS, and a long term evolution demodulation reference signal LTE DMRS, the narrowband control The resource unit group in the channel resource is determined by at least one of the following methods: The resource unit REs of the physical resource block PRB except the resources occupied by the pilots are in the frequency domain from the low-to-high repetition number 0-X, and the REs with the same sequence number are the same in the order of the frequency domain after the time domain. a resource unit group, wherein the X is a positive integer; The REs other than the resources occupied by the pilots in a PRB are in the frequency domain from low to high in the order of the time domain of the first frequency domain, and are consecutively repeated N times with the same serial number 0-Y, and the REs of the same serial number are composed. The same resource unit group, wherein the N is an even number and Y is a positive integer; Determining M1 resource unit groups in units of consecutive N REs in the frequency domain from low to high or high to low on an orthogonal frequency division multiplexing OFDM symbol in which no pilot is occupied in the PRB; Determining M2 resource unit groups in units of consecutive N REs or non-contiguous N REs in the frequency domain from low to high or high to low on the OFDM symbol occupied by the pilot, or an odd number of remaining in the frequency domain In the RE, the REs of the non-frequency domain edge or the consecutive 2 REs in the frequency domain form a M3 resource unit group of N RE sizes in the frequency domain from low to high or high to low, wherein the M1, M2, and M3 are Z is a positive integer and the N is an even number. The method of claim 6 wherein The value of N is at least one of the set {2, 4, 8}; and/or, The values of the M1, M2, and M3 are at least one of the sets {1, 2, 3, 4, 5, 6}. The method according to claim 6 or 7, wherein the control channel unit is composed of two or more resource unit groups, wherein When the number of the resource unit groups is an integer multiple of 4, the number of resource unit groups in each control channel unit constituting one subframe or one PRB is the same, wherein the resource unit group in each control channel unit Is selected by equal spacing in all resource unit groups or consecutively selected or partially consecutive parts; and/or, When the number of resource element groups is a non-integer multiple of 4, the number of resource unit groups in each of the control channel units constituting one subframe or one PRB is not completely the same. The method according to claim 8, wherein when the number of the resource unit groups is a non-integer multiple of 4, the number of resource unit groups in each control channel unit constituting one subframe or one PRB is fixedly configured Or dynamic composition mode determination, where the dynamic composition mode includes RRC configuration through system message block SIB or radio resource control, implicit determination according to subframe number, implicit determination according to radio frame number, and implicit determination according to detection window number At least one of the ways to determine. The method according to claim 2, wherein when the resource unit RE included in a group of resource unit groups collides with other signals or channels, the RE or the resource unit to which the RE belongs is determined by at least one of the following manners Whether the group is available: Determining according to a pre-defined RE, a resource unit group to which the RE belongs, a control channel unit to which the RE belongs, and at least one of the control channels to which the RE belongs, and a priority of the other signal or channel; Determining, according to the availability of at least one of the RE, the resource unit group to which the RE belongs, the control channel unit to which the RE belongs, and the control channel to which the RE belongs, wherein the signaling includes a system Message block SIB or radio resource control RRC. The method according to claim 10, wherein the availability of at least one of the RE, the resource unit group to which the RE belongs, the control channel unit to which the RE belongs, and the control channel to which the RE belongs includes at least one of the following: The resource unit group in which the RE is located is unavailable; Only the RE and the paired RE paired with the RE are unavailable in the resource element group to which the RE belongs; Only the REs in the resource element group to which the RE belongs are not available, wherein the REs other than the REs in the resource unit group to which the RE belongs are transmitted using a single port or paired with remaining REs in other resource unit groups. use; The control channel unit to which the RE belongs is not available; The control channel to which the RE belongs is not available. The method according to claim 2, wherein the number of resource unit groups included in one control channel unit is determined according to at least one of a subframe type, an application scenario, and a cyclic prefix type, including at least one of the following: The quantity is greater than the number of resource unit groups included in the control channel unit in the normal subframe; When the one control channel element uses the same resource element group as the normal subframe, the number is configured with a larger aggregation level. The method according to claim 12, wherein determining the number of resource unit groups included in one control channel unit according to the application scenario comprises: When the application scenario is an In-band scenario in a frequency band of the LTE-LTE system, the number of resource unit groups included in the one control channel unit is greater than that of the application scenario, and the application scenario is located in the LTE system. The number of resource element groups included in the control channel element when guarding guard-band. A signal processing device comprising: Determining a module, configured to determine a narrowband control channel resource; The processing module is configured to perform packet pairing of the resource units in the determined narrowband control channel resources, and process signals carried on the resource units of the group pairing. A base station comprising the signal processing device of claim 14. A terminal comprising the signal processing device of claim 14.

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