CN106060931B

CN106060931B - Information processing method and user equipment

Info

Publication number: CN106060931B
Application number: CN201610178047.6A
Authority: CN
Inventors: 卢有雄; 吴栓栓; 黄双红; 杨瑾; 袁弋非
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2015-04-10
Filing date: 2016-03-24
Publication date: 2022-08-09
Anticipated expiration: 2036-03-24
Also published as: WO2016161987A1; CN106060931A

Abstract

The invention discloses an information processing method and user equipment, wherein the method comprises the following steps: determining the priority of the user equipment; if the priority of the user equipment is the first priority and data is scheduled to be sent in the nth communication period, sending an announcement signal in the nth-m communication period; wherein n is an integer not less than m; m is an integer greater than or equal to zero; the notification signal is used for informing other user equipments that the user equipment of the first priority will participate in resource contention or use of the nth communication period.

Description

Information processing method and user equipment

Technical Field

The present invention relates to resource competition and use technologies in the field of communications, and in particular, to an information processing method and a user equipment.

Background

With diversification of mobile communication services and application scenarios, for example, popularization of applications in wireless communication systems, such as public safety, car networking, field command, social networking, electronic payment, etc., service transmission demands among close-range users are increasing. Such as a Device-to-Device (D2D) communication mode between close-range users, a Vehicle-to-Vehicle (V2V) communication mode, and other similar user Device-to-user Device communication modes, the present invention is increasingly focused on public safety scenarios such as disaster relief, and also on business scenarios to save power consumption and improve spectrum utilization of user devices.

In cellular communication, when two User Equipments (UEs) communicate, resources used by the UEs are generally allocated uniformly by a network side device (such as a base station or an access node), which is referred to as a central node. For a wireless communication scenario without a central node or a scenario with a central node but with a resource allocation mode competing for user equipment, the UE can only select resources to use by means of information obtained by the UE itself, and usually, an autonomous random resource selection mode is used. This approach can lead to higher resource conflict issues (two or more user equipments select the same resource) and cannot meet the communication requirements of some emergency services or high-level equipment.

Disclosure of Invention

In view of the above, embodiments of the present invention are intended to provide an information processing method and a user equipment, so as to at least partially solve the problem of low probability of contention to a communication resource by an emergency service or a high-level user equipment.

The technical scheme of the invention is realized as follows: an embodiment of the present invention provides a first aspect of an information processing method, where the method includes:

determining the priority of the user equipment;

if the priority of the user equipment is the first priority and data is scheduled to be sent in the nth communication period, sending an announcement signal in the nth-m communication period;

wherein n is an integer not less than m; m is an integer greater than or equal to zero;

the notification signal is used for informing other user equipment that the user equipment with the first priority will participate in resource competition or use of the nth communication period; the other user equipment comprises user equipment of a second priority.

Preferably, if the priority of the ue is the first priority and data is scheduled to be sent in the nth communication period, the sending an announcement signal in the nth-m communication period includes:

and transmitting the notification signal by using the synchronous subframe of the n-m communication period.

Preferably, the transmitting the announcement signal by using the synchronization subframe of the n-m communication period includes:

forming an announcement signal;

and transmitting the notification signal by using the time-frequency resource of the synchronous subframe.

Preferably, the synchronization subframe is a subframe for transmitting a synchronization sequence;

the synchronization sequences comprise a first type synchronization sequence and a second type synchronization sequence; the first type of synchronization sequence is different from the second type of synchronization sequence;

the sending the announcement signal by using the time-frequency resource of the synchronization subframe includes:

transmitting a first type of synchronization sequence by using a synchronization subframe;

the first type of synchronization sequence is used for synchronization, and is also used for informing other user equipments that the user equipment with the first priority will participate in resource contention of the nth communication period.

Preferably, the transmitting the announcement signal in the n-m communication period includes:

and carrying the notification signal on a designated transmission symbol of a data subframe of the n-m communication period to send the notification signal.

Preferably, the announcement signal comprises at least one announcement identification bit;

the transmitting of the announcement signal in the n-m communication period includes:

and transmitting the notification identification bit by using the SA subframe of the n-m communication period.

Preferably, the attributes of the user equipment of the first priority and the user equipment of the second priority are different, or the types of services currently transmitted are different.

Optionally, the sending the notification signal in the n-m communication period includes:

determining a time-frequency resource for sending scheduling and allocating SA information according to the information content of the notification signal;

sending the SA information by using the determined time-frequency resource; and the information content of the notification signal has a mapping relation with the time-frequency resource for sending the SA information.

A second aspect of the embodiments of the present invention provides an information processing method, where the method includes:

determining the priority of the user equipment;

if the priority of the user equipment is the second priority, detecting an announcement signal sent by the user equipment with the first priority in the nth-m communication period;

determining the related information of resource competition or use of the nth communication period according to the notification signal;

wherein n is an integer not less than m; and m is an integer greater than or equal to zero.

Preferably, the detecting the notification signal sent by the user equipment of the first priority in the n-m communication period includes:

detecting a synchronization subframe of the n-m communication period;

and acquiring the notification signal from the synchronous subframe.

Preferably, the acquiring the announcement signal from the synchronization subframe includes:

and extracting the notification signal from the appointed time frequency resource of the synchronous subframe.

extracting a synchronization sequence on the synchronization subframe;

judging whether the synchronization sequence is a first type synchronization sequence or a second type synchronization sequence;

and if the synchronization sequence is the first type synchronization sequence, determining that the notification signal is received.

and acquiring the notification signal from a designated transmission symbol of a data subframe of the n-m communication period.

the detecting the announcement signal sent by the user equipment with the first priority in the n-m communication period comprises the following steps:

acquiring the notification identification bit from the scheduling and allocating SA subframe of the nth-m communication period; the SA subframe is a subframe carrying SA information.

detecting, scheduling and allocating SA information in an n-m communication period, and determining a time-frequency resource for sending the SA information;

determining the information content of the notification signal according to the time-frequency resource for sending the SA information; and the information content of the notification signal has a mapping relation with the time-frequency resource for sending the SA information.

Preferably, the determining, according to the announcement signal, the related information of resource contention or usage of the nth communication period includes:

and determining to quit the resource competition or use of the nth communication period according to the notification signal.

when the announcement signal indicates that the user equipment of the first priority is to participate in the n-th communication cycle resource contention or use, participating in the n-th communication cycle resource contention or use with a first probability; wherein when the announcement signal is not received or the announcement signal indicates that the user equipment of the first priority will not participate in the n-th communication cycle resource competition or use, the user equipment of the second priority will participate in the n-th communication cycle resource competition or use with a second probability; the first probability is less than the second probability.

A third aspect of an embodiment of the present invention provides a user equipment, where the user equipment includes:

a first determining unit, configured to determine a priority of a user equipment;

a sending unit, configured to send an announcement signal in an nth-m communication period if the priority of the ue is a first priority and data is scheduled to be sent in the nth communication period;

the notification signal is used for informing other user equipment that the user equipment of the first priority will participate in resource contention or use of the nth communication period; the other user equipment comprises user equipment of a second priority.

Preferably, the sending unit is specifically configured to send the notification signal by using a synchronization subframe of the nth-m communication period.

Preferably, the sending unit is specifically configured to form an announcement signal; and transmitting the announcement signal by using the time-frequency resource of the synchronous subframe.

the transmitting unit is specifically configured to transmit a first type of synchronization sequence by using a synchronization subframe;

Preferably, the sending unit is specifically configured to carry the notification signal on a designated transmission symbol of a data subframe of an nth-m communication period to send the notification signal.

the sending unit is specifically configured to send the notification flag using the SA subframe of the nth-m communication period.

Preferably, the sending unit is specifically configured to determine, according to the information content of the notification signal, a time-frequency resource for sending scheduling assignment SA information; sending the SA information by using the determined time-frequency resource; and the information content of the notification signal has a mapping relation with the time-frequency resource for sending the SA information.

A fourth aspect of the present invention provides a user equipment, where the user equipment includes:

a second determining unit, configured to determine a priority of the user equipment;

a detecting unit, configured to detect, in an nth-m communication period, an announcement signal sent by a user equipment with a first priority if the priority of the user equipment is a second priority;

a third determining unit, configured to determine, according to the notification signal, related information of resource contention or usage of the nth communication period;

Preferably, the detecting unit is specifically configured to detect a synchronization subframe of the nth-m communication period; and acquiring the notification signal from the synchronous subframe.

Preferably, the detecting unit is specifically configured to extract the announcement signal from a specified time-frequency resource of the synchronization subframe.

Preferably, the detecting unit is specifically configured to extract a synchronization sequence on the synchronization subframe; judging whether the synchronization sequence is a first type synchronization sequence or a second type synchronization sequence; and if the synchronization sequence is the first type synchronization sequence, determining that the notification signal is received.

Preferably, the detecting unit is specifically configured to acquire the notification signal from a designated transmission symbol of a data subframe of the nth-m communication period.

the detecting unit is specifically configured to acquire the notification flag from the SA subframe of the nth-m communication period.

Preferably, the first and second electrodes are formed of a metal,

the detection unit is configured to detect scheduling assignment SA information in an n-m communication period and determine a time-frequency resource for sending the SA information; determining the information content of the notification signal according to the time-frequency resource for sending the SA information; and the information content of the notification signal has a mapping relation with the time-frequency resource for sending the SA information.

Preferably, the third determining unit is specifically configured to determine to quit the resource contention or the resource usage of the nth communication period according to the notification signal.

The user equipment of claim 22,

the third determining unit is specifically configured to participate in the contention or the usage of the nth communication cycle resource with a first probability when the notification signal indicates that the user equipment of the first priority is to participate in the contention or the usage of the nth communication cycle resource; wherein when the announcement signal is not received or the announcement signal indicates that the user equipment of the first priority will not participate in the n-th communication cycle resource competition or use, the user equipment of the second priority will participate in the n-th communication cycle resource competition or use with a second probability; the first probability is less than the second probability.

In the information processing method and the user equipment according to the embodiments of the present invention, when performing resource contention, the user equipment is divided into the UE of the first priority and the UE of the second priority, and the UE of the first priority participates in resource contention in the nth communication period, and then sends the notification signal in the nth-m communication period, so that the UE of the second priority receives the notification signal, and determines to select to quit resource contention or use in the nth communication period or compete for related information such as resources in the nth communication period with a lower participation probability according to the notification signal, so as to alleviate the severity of resource contention in the nth communication period and improve the probability that the UE of the first priority can compete for the resources.

Drawings

FIG. 1 is a flowchart illustrating an information processing method according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a synchronization subframe according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a data subframe according to an embodiment of the present invention;

FIG. 4 is a second flowchart illustrating an information processing method according to an embodiment of the invention;

FIG. 5 is a third schematic flowchart of an information processing method according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a ue according to an embodiment of the present invention;

fig. 7 is a second schematic structural diagram of a ue according to the embodiment of the present invention;

fig. 8 is a third schematic flow chart of the information processing method according to the embodiment of the invention.

Detailed Description

The embodiment of the application provides an information processing method, which is mainly applied to a communication system without a central node or without the central node participating in communication resource allocation control, and divides communication user equipment into user equipment with a first priority and user equipment with a second priority, wherein the first priority is higher than the second priority; in order to ensure that the ue of the first priority has a higher probability of contending for the resource for service data transmission, the ue of the first priority will send an announcement signal in the nth-m communication period, and the ue of the second priority will determine whether to participate in contention or use of the communication resource in the nth communication period according to the received announcement signal, or whether to participate in the resource contention with a lower first probability than when the announcement signal is not received, etc. Therefore, the competition degree of the users with the first priority can be reduced, or the users with the second priority give away part or all of the resources to ensure that the user equipment with the high priority preferentially uses the resources to transmit data.

The technical solution of the present invention is further described in detail with reference to the drawings and the specific embodiments of the specification.

The first embodiment of the method comprises the following steps:

as shown in fig. 1, the present embodiment provides an information processing method, including:

step S110: determining the priority of the user equipment;

step S120: if the priority of the user equipment is the first priority and data is scheduled to be sent in the nth communication period, sending an announcement signal in the nth-m communication period;

wherein n is an integer not less than m; m is an integer greater than or equal to zero. The notification signal is used for informing other user equipments that the user equipment of the first priority will participate in resource contention or use of the nth communication period.

In this embodiment, the priorities of the user equipments are divided into a first priority and a second priority. The division of the first priority and the second priority may be determined according to a user equipment attribute of the user equipment or a traffic type of data that needs to be transmitted in an nth communication cycle of the user equipment. The user equipment attribute comprises one or more of type parameters such as the equipment type of the user equipment, the group attribute of a group to which the user equipment belongs, the type of a supported communication system and the like.

The different service types comprise: the communication requirements of the services are different, specifically, the allowable time delay for communication is different, the communication quality requirements are different, or the importance of the services is different. Generally, the larger the allowable latency is, the higher the probability that the corresponding priority is the second priority is, and in particular implementation, the probability may be determined directly according to the service type.

The priority may be preset in the user equipment, or determined by a protocol layer of the user equipment, or may be obtained from an access node of the user equipment. The access node may be a communication node such as a base station or other central node, and may be used for the ue to access a mobile network. The access node may inform the priority of the user equipment by sending configuration information.

After the priority of the user equipment is determined, if the user equipment with the first priority determines that the data transmission is scheduled in the nth communication period, the notification signal is sent in the nth-m period. The notification signal is sent in a broadcast mode, so that other nearby user equipment participating in the same resource competition can receive the notification signal, and the user equipment with the second priority can conveniently determine the resource competition and use of the nth communication period; specifically, the back-off mechanism is selected to determine not to participate in the resource contention or use of the nth communication period. Therefore, the intensity of resource competition or use conflict in the nth communication period can be reduced, and the high-priority user equipment is ensured to have higher probability of competing or using the communication resources.

In the present embodiment, the user equipment may be D2D user equipment or V2V user equipment, and the like, which are generally applied in a communication system without a central node or without the central node participating in resource allocation. The contended resources may be communication resources of a licensed spectrum or an unlicensed spectrum.

And if the nth-m communication period is the current communication period, the nth communication period is the mth communication period after the current communication period. The announcement signal may be used for the user equipment of the second priority to determine whether the user equipment participates in resource contention or resource contention parameters of the nth communication period or not.

Assuming that the ue executing the method of this embodiment is a first ue, in step S110, if the first ue has a preset priority for executing the first ue according to this embodiment, step S110 may include reading the priority of the first ue from a storage location preset with the priority, or configuring the priority from a protocol high layer of the first ue, or the first ue acquires the priority from a network-side device such as an access node or a central node, or may include receiving configuration information from the network-side device, analyzing the configuration information, and acquiring the priority of the first ue. In a specific implementation, the execution timing of step S110 may be to determine the priority of the first user equipment when the first user equipment determines that there is data to be transmitted in the nth communication cycle. The network side device may also be an evolved node b eNB, a small cell base station, or a network node in an upper layer, such as a gateway, or a network device such as a mobility management entity MME. It is worth noting that: the first user equipment may be generally referred to as any one of the user equipments herein.

In step S120, when the priority of the first user equipment is determined to be the first priority and it is determined that data is to be transmitted in the nth communication period, the notification signal is transmitted in the nth-m communication period.

The notification signal is preferably an energy signal, and when the notification signal is an energy signal, the UE of the second priority detects the energy of the notification signal, and on the premise of not analyzing the specific information content of the notification signal, can determine that the UE of the first priority has sent the notification signal, and will participate in resource contention and use of the nth communication period. The announcement signal may also be part of the control information content of the near field communication. The close range communication here may include D2D communication, V2X communication. The V2X is an abbreviation of vehicle to event, and the corresponding Chinese language can be vehicle networking communication.

The UE of the first priority may transmit the announcement signal on any one of a data frame, a subframe or a transmission symbol of the n-m communication period in step S120. The UE of the first priority may indicate whether it has the notification signal sent by sending information on the designated time-frequency resource, may also send the notification signal on any time-frequency resource of any nth-m communication period, and may indicate whether the notification signal is the notification signal by the information content.

There are various ways to transmit the notification signal in step S120, and several ways for easy implementation are described below.

The first method is as follows:

the step S120 includes:

A 1 ms-long synchronization subframe typically includes 2 0.5 ms-long slots; and each slot includes 6 or 7 transmission symbols, which may be OFDM symbols or SC-FDMA symbols. The OFDMA is an abbreviation of Orthogonal-Frequency Division Multiplexing, and the corresponding Chinese is Orthogonal Frequency Division multiple access. The SC-FDMA is an abbreviation of Single Carrier Frequency Division Multiplexing, and the corresponding Chinese is Single Carrier Frequency Division multiple access.

FIG. 2 illustrates one of the subframe formats of a synchronization subframe; primary synchronization signal PD2DSS for D2D communication transmitted in the 1 st and 2 nd transmission symbols of the 1 st slot in fig. 2; a secondary synchronization signal SD2DSS communicated for D2D is transmitted in the 4 th and 5 th transmission symbols of the 2 nd slot. In fig. 2, the Announcement Signal (AS) is transmitted in the 0 th transmission symbol of the 1 st slot of the synchronization subframe.

It is worth noting that: the time domain position of the AS is not limited to the first symbol position of the synchronization subframe, nor is it limited to occupy only one symbol. The frequency domain bandwidth of the AS signal may be the same 6 resource blocks RB AS the synchronization signal, or may be all or part of other available bandwidths. The resource location of the AS can be determined by a method configured or preconfigured by the network side device. Here, the network side device may be an access node, such as a user equipment.

In this embodiment, the resource preemption method at least includes that the UE with the first priority sends an announcement signal in the AS resource of the synchronization subframe, and the UE that needs to detect the AS listens to and detects the AS channel. Here, the UE that needs to detect the AS may include any UE that does not transmit the AS, but at least includes a UE of the second priority.

The notification signal is transmitted by using a synchronous subframe, wherein the synchronous subframe is a subframe for transmitting a synchronous signal or a subframe configured with synchronous subframe resources. The method for transmitting the announcement signal by using the synchronous subframe can be divided into at least two modes:

the first mode is as follows:

the transmitting the announcement signal by using the synchronization subframe of the n-m communication period includes:

forming an announcement signal;

In fig. 2, the time-frequency resources of the synchronization sub-frame are occupied by the announcement signal alone, that is, the time-frequency resources are not multiplexed with other synchronization sequences and other information.

And a second mode:

the synchronous subframe is a subframe used for sending a synchronous sequence;

The first-class synchronization sequence is not only used for synchronization between user equipments, but also used for the user equipment of the first priority to inform other user equipments, such as the user equipment of the second priority, that the user equipment of the first priority sending the announcement signal will participate in resource contention of the nth communication period, and the user equipment of the second priority is allowed to select avoiding resource contention or adjust probability of participating in contention, etc.

In a specific implementation, the transmitting the first type of synchronization sequence using the subframe includes: and generating a first type of synchronization sequence. The method for generating the synchronization sequence by the user equipment comprises at least two methods, when the user equipment is the user equipment with the first priority and needs to send an announcement signal, the second method for generating the synchronization sequence is selected, otherwise, the first method for generating the synchronization sequence is selected; the second way of generating the synchronization sequence is different from the first way of generating the synchronization.

The synchronization sequences are divided into primary synchronization sequences and secondary synchronization sequences, and the first class synchronization sequences and the second class synchronization sequences are preferably sub-classes of the secondary synchronization sequences in the present application.

In general, the synchronization sequence may be composed of a plurality of bits, where d (2n) represents an even-numbered value; d (2n +1) represents the value of the odd-numbered digit;the value of n is an integer starting from 0. The above-mentioned

And

the M sequences are displaced for two different cycles; c is mentioned ₀ (n) and c ₀ (n) are two different scrambling sequences;

and

two different scrambling sequences. The specific configurations of the M sequence and the scrambling sequence can be referred to as the definition of the secondary synchronization sequence in the LTE system, and are not described in detail herein.

The first way of generating a synchronization sequence, represented by the first one of the formulas; the second represents a second way of generating the synchronization sequence.

In a specific implementation process, the synchronization sequence may be generated in advance, and when the synchronization sequence is transmitted, a sequence may be selected from the first-class synchronization sequence or the second-class synchronization sequence according to the priority of the ue and whether data needs to be transmitted in the nth communication period. If the priority of the user equipment is the first priority and the data needs to be sent in the nth communication period, selecting the first type of synchronous sequence, otherwise, selecting the second type of synchronous sequence.

The second method comprises the following steps:

the step S120 may include:

The data subframe is a subframe for transmitting service data. The designated transmission symbol may select a last transmission symbol. The data subframe shown in fig. 3 is a data subframe in which the announcement signal is transmitted on the last transmission symbol of the data subframe. The designated transmission symbol may also be other transmission symbols, such as the first transmission symbol, etc.

Fig. 3 shows only one example of the location of the AS in the data subframe, where the AS is located at the last symbol position of the data subframe, and other symbols may be redefined for AS signaling. The time domain duration of the AS signal is t (t is less than or equal to one transmission symbol duration). The frequency domain bandwidth is not limited and can be within the available bandwidth range. The time length t occupied by the AS, indicated by the dashed box in fig. 3, is obviously less than the time length of one transmission symbol.

The third method comprises the following steps:

the announcement signal comprises at least one announcement identification bit;

The SA is an abbreviation of Schedule Assignment, and the corresponding Chinese is scheduling distribution; the SA subframe is a subframe transmitted by a control channel, and is a subframe carrying scheduling assignment SA information, and specifically, in D2D communication, the control channel is a PSCCH channel; the PSCCH is an abbreviation of Physical Sidelink Control Channel, and the corresponding Chinese is D2D communication Physical Control Channel.

The notification flag may occupy one bit or multiple bits or indicate implicitly, and when the notification flag is only one bit, the first ue with the first priority whose value of the bit is 1 or 0 has two different states to be sent in the nth communication period.

Specifically, the Announcement Signal (AS) defines that the first priority UE having a traffic demand in the mth communication cycle after the current cycle transmits the AS in the SA content (PSCCH channel) in the current communication cycle. Wherein, the AS comprises 1bit, 1 represents that the resource of the mth communication period after the current period is preempted, and 0 represents that the resource of the mth communication period after the current period is not preempted. The SA defines a new format, adds an AS identification field (ASFlag, 1bit), and is used to send an AS.

The resource allocation of communication has periodicity, and each communication period, communication UE firstly transmits SA scheduling information on an SA resource pool. In this embodiment, if the first priority UE has a service transmission requirement in the nth communication cycle, the newly defined SA format may be selected, and the AS is transmitted in the ASFlag field of the SA content in the current cycle. The SA carrying the AS may be an SA for scheduling data of the nth-m communication period, or may send one SA alone, but it is not used to indicate data transmission of the nth-m communication period, and further, a dedicated time-frequency resource may be defined in an SA subframe for such an SA dedicated to send AS information.

If the ASFlag field is 1 in the received SA content, it indicates that the UE with the first priority participates in the resource contention of the nth communication cycle, and the UE with the low priority may abandon the resource contention or use of the nth cycle, or choose to participate in the resource contention with a lower probability p, where p is less than or equal to 1.

In addition, in the new SA format, a domain (PA) indicating a Priority of a service may be defined, and the UE that needs to detect an AS may be determined whether to participate in resource selection in the nth period according to the PA information.

In this embodiment, the resource contention mode at least includes that the first priority UE sends an SA format carrying AS information (ASFlag), the UE that needs to detect the AS receives the SA, and if the ASFlag field is found to be 1, abandons resource occupation of the nth period or selectively occupies resources with a lower probability, that is, vacates more resources for use by the first priority UE.

The step S120 may include: determining a time-frequency resource for sending scheduling and allocating SA information according to the information content of the notification signal;

For example, when the notification identifier corresponding to the notification signal is 1, the SA subframe sends SA information in the first time-frequency resource, and if the notification identifier is 0, the SA information is sent in the second time-frequency resource, or if no SA is received in the first time-frequency resource, the notification identifier is considered to be 0. The first time-frequency resource and the second time-frequency resource are resource blocks at specific positions in the SA resource pool, so that the UE can determine the notification identifier according to the time-frequency resource position for sending the SA, namely the information content of the notification signal is determined.

The second method embodiment:

as shown in fig. 3, the present embodiment provides an information processing method, where the method includes:

step S210: determining the priority of the user equipment;

step S220: if the priority of the user equipment is the second priority, detecting an announcement signal sent by the user equipment with the first priority in the nth-m communication period;

step S230: and determining the related information of resource competition or use of the nth communication period according to the notification signal. N is a positive integer not less than m; and m is an integer greater than or equal to zero.

The method described in this embodiment is applied to the user equipment with the second priority.

Here, n is an integer not less than 2, and the count of communication cycles may start from 1, as in the method embodiment. In step S220, preferably, when the UE with the second priority has data to be transmitted in the nth communication period, the notification signal is detected in the nth-m period, so as to reduce the number of times of detection of the UE and save power consumption of the UE.

The related information in step S230 may include a re-determined starting time of the resource contention, specifically, the originally predetermined starting time of the resource contention in the nth communication cycle is modified, and the resource contention is modified to the nth + i communication cycle. And i is an integer not less than 1, and it is obvious that the user equipment with the second priority will avoid the user equipment with the first priority in the nth communication cycle. In addition, the user equipment with the second priority can also directly determine to avoid exiting the resource contention time, and determine whether to use other communication methods for communication, such as transmitting data to the target UE by a base station or the like. In addition, the step S230 may further include: when the announcement signal indicates that the user equipment of the first priority is to participate in the n-th communication cycle resource contention or use, participating in the n-th communication cycle resource contention or use with a first probability; wherein when the announcement signal is not received or the announcement signal indicates that the user equipment of the first priority will not participate in the n-th communication cycle resource competition or use, the user equipment of the second priority will participate in the n-th communication cycle resource competition or use with a second probability; the first probability is less than the second probability. The maximum value of the second probability may be 1. The first probability and the second probability may be configured by a central node such as a base station or a network side device, or may be configured in a manner of pre-configuration by a user equipment. For example, the announcement signal includes an announcement identification bit, if the announcement identification bit is 1, the UE of the second priority participates in the contention or the use of the nth communication period resource with a first probability after receiving the announcement signal, and otherwise participates in the contention or the use of the nth communication period resource with a second probability higher than the first probability.

The step S220 may include: detecting a synchronization subframe of the n-m communication period; and acquiring the notification signal from the synchronous subframe.

Here, the detection of the announcement signal may correspond to the aforementioned first manner; and the reception of signals from the synchronization sub-frame is divided into at least the following two ways.

The first mode is as follows:

the acquiring the announcement signal from the synchronization subframe includes:

and extracting the notification signal from the appointed time frequency resource of the synchronous subframe. In particular as the announcement signal is decoded on the designated time-frequency resources of the synchronization subframe. Usually, the announcement signal occupies the time-frequency resource corresponding to the synchronization subframe separately at this time.

The second mode is as follows:

extracting a synchronization sequence on the synchronization subframe;

Corresponding to the second way of the notification signal sent by the user equipment as the first priority, the user equipment as the second priority may also acquire the notification signal from the data subframe. Specifically, the notification signal is obtained from a designated transmission symbol of the data subframe of the n-m communication period. The designated transmission symbol here may be the last transmission symbol, the first transmission symbol, and so on.

In addition, corresponding to the aforementioned third way of transmitting the notification signal, how the ue, which is the ue of the second priority, receives the notification flag from the control channel is described below.

The announcement signal comprises at least one announcement identification bit;

and acquiring the notification identification bit from the SA subframe of the n-m communication period.

Fig. 5 is another example of resource contention in an embodiment of the present invention.

Classifying User Equipment (UE); user equipment divided into a first priority and a second priority.

When data are sent in the nth communication period, the user equipment with the first priority sends ASFlag; the user equipment with the second priority receives and judges the value of the ASFlag, and participates in resource competition or use when the ASFlag is 0; when the ASFlag is 1, the current resource competition or use is abandoned, or the resource competition is selected to participate at the first probability. The ASFlag is the above-mentioned notification flag.

In a specific implementation process, when the priority of the first user equipment is the second priority, the user equipment may further select to forward the notification signal sent by the first priority user equipment in order to ensure that more second priority devices can receive the notification signal after receiving the notification signal of the first priority user equipment, and reduce the number of user equipments participating in contention in the nth communication period.

It is to be noted that this embodiment provides an information processing method, which is mainly used for a UE with a second priority, where the priority division of the UE may refer to the corresponding part in the first embodiment of the method, and in short, the priority division may be dynamic or static; the method can be used together with the UE with the first priority as described in the embodiment to reduce the severity of resource competition and improve the probability of the UE with the first priority competing to the resource.

Several examples are provided below in connection with the specific embodiments:

example one:

under the communication scene that no central node such as a base station or the like or the central node does not participate in resource allocation, when the UE with the first priority needs to occupy resources for data transmission, the UE sends an announcement signal in a newly added channel of a synchronous subframe of the current communication period. After receiving the notification signal, the UE of the second priority determines that the UE does not participate in resource contention or use in the mth communication period after the current communication period or participates in resource contention with the first probability, so that the UE of the first priority has a higher probability of competing for the resource, and the severity of contention conflict is relieved. Here, the newly added channel is a time-frequency resource specially set in a synchronization subframe for transmitting the announcement signal.

Example two:

under a communication scene that no central node such as a base station or the like participates in resource allocation, when UE of a first priority needs to occupy resources for data transmission, a first type of synchronization sequence is generated by adopting a first type of synchronization sequence generation mode, and the first type of synchronization sequence is transmitted in a synchronization subframe of a current communication period. In this case, the synchronization sequence of the first type is used AS a synchronization sequence for synchronization and is multiplexed into the aforementioned announcement signal AS. After receiving the first type of synchronization sequence, the UE of the second priority considers that the notification signal sent by the UE of the first priority is received, and considers that the UE of the first priority participates in the resource contention of the nth communication period, so that the UE of the first priority is determined not to participate in the resource contention or participate in the resource contention with the first probability in the nth communication period, so that the UE of the first priority has a greater probability of competing for the resource, and the severity of contention conflict is relieved. Here, the newly added channel is a time-frequency resource specially set in a synchronization subframe for transmitting the announcement signal.

Example three:

under the communication scene that no central node such as a base station or the like participates in resource allocation, when the UE with the first priority needs to occupy the resource of the nth period for data transmission, the UE sends an announcement signal at the appointed transmission symbol, such as the last transmission symbol, of the data subframe of the nth-m communication period. And the UE of the second priority receives the notification signal from the data subframe, and determines not to participate in the resource competition or participate in the resource competition with the first probability in the nth communication period after receiving the notification signal, so that the UE of the first priority has a higher probability of competing to the resource, and the severity of the competition conflict is relieved.

Example four:

under the communication scene that no central node such as a base station or the like participates in resource allocation, when the UE with the first priority needs to occupy resources for data transmission, the UE sends an announcement signal in the content of the SA subframe of the current communication period. And the UE with the second priority receives the notification signal from the SA content, and after receiving the notification signal, the UE with the first priority is determined not to participate in resource competition or use in the mth communication period after the current period or participate in the resource competition with the first probability, so that the UE with the first priority has higher probability of competing to the resource, and the fierce degree of competition conflict is relieved.

When the UE of the first priority transmits the announcement signal by using an SA subframe, the SA may be formed in a new SA format to which an announcement identification bit is newly added. At least one or more bits are set in the new SA format with the newly added notification flag to represent the notification flag. The new SA format differs from the old SA format in that: the new SA format has an ASFlag field set therein. The ASFlag field is used for storing the communication identification bit. If the UE of the first priority does not send data in the nth communication period, when the UE of the first priority sends the SA subframe, the SA subframe may still be formed by using the old SA format to carry SA information or formed by using the new SA format, but the ASFlag field is 0. The new SA format may also include a PA domain; the PA field is used to store priorities, which here may be priorities of UE attributes and/or priorities of traffic types. In the embodiment of the present application, the value of m is preferably 1.

The step S220 may also be: detecting, scheduling and allocating SA information in an n-m communication period, and determining a time-frequency resource for sending the SA information; determining the information content of the notification signal according to the time-frequency resource for sending the SA information; and the information content of the notification signal has a mapping relation with the time-frequency resource for sending the SA information. For example, the notification signal is a notification flag, and at this time, the notification flag may be used to implicitly indicate the transmission time-frequency resource of the SA information; for example, SA information transmitted by using a specific time-frequency resource indicates that the notification flag is 1. At this time, the SA format used by the SA information may be an old SA format.

The first embodiment of the device:

as shown in fig. 6, the present embodiment provides a user equipment, where the user equipment includes:

a first determining unit 110, configured to determine a priority of a user equipment;

a sending unit 120, configured to send an announcement signal in an nth-m communication period if the priority of the ue is the first priority and data is scheduled to be sent in the nth communication period;

the notification signal is used for informing other user equipments that the user equipment of the first priority will participate in resource contention or use of the nth communication period.

The specific structure of the first determining unit differs according to the determination method of priority and level, and if the priority is received from a network side device, the specific structure of the first determining unit 110 may include a communication interface, such as an interface capable of receiving data, for example, a receiving antenna. If the priority is read from the storage space inside the UE or the protocol layer of the UE configures the priority, the first determining unit 110 may include an information processing structure such as a processor with information reading and analyzing functions. The processor may include an electronic device or a collection of electronic devices having an information processing function, such as an application processor AP, a central processing unit CPU, a microprocessor MCU, a digital signal processor DSP, or a programmable array PLC.

The transmitting unit may include a transmitting antenna, and is specifically configured to transmit the notification signal.

The notification signal informs the UE of the second priority, and the UE of the first priority participates in resource contention of the nth communication period, so that the UE of the second priority receiving the notification signal of the UE of the first priority can determine whether to adopt a backoff strategy, does not participate in resource contention or use of the nth communication period, or participates in resource contention or use with the first probability.

The user equipment described in this embodiment may specifically be a user equipment with a communication function, such as a mobile phone and a tablet computer, specifically, D2D UE or V2V UE; when resource competition is carried out, the resource allocation of the UE with high priority or high service priority can be prioritized, so that the UE with high priority can be ensured to have higher probability of competing for the resource for data transmission, and meanwhile, the intensity of the resource competition can be reduced.

There are various structures for the sending unit 120 to send the announcement signal AS, and the following lists several optional structures:

the structure I is as follows:

the transmitting unit 120 is specifically configured to transmit the notification signal by using the synchronization subframe of the nth-m communication period. Specifically, for example, the sending unit 120 may be configured to form an announcement signal; and transmitting the announcement signal by using the time-frequency resource of the synchronous subframe. Thus, the UE of the second priority receives the announcement signal when receiving the synchronization subframe. For another example, the synchronization subframe is a subframe for transmitting a synchronization sequence; the synchronization sequences comprise a first type synchronization sequence and a second type synchronization sequence; the first type of synchronization sequence is different from the second type of synchronization sequence; the transmitting unit 120 is configured to transmit a first type of synchronization sequence using a synchronization subframe; the first type of synchronization sequence is used for synchronization, and is also used for informing other user equipments that the user equipment with the first priority will participate in resource contention of the nth communication period. Thus, the UE with the second priority will participate in resource contention or use of the nth communication cycle after receiving the synchronization sequence of the first type.

The structure II is as follows:

the sending unit 120 is further configured to carry the notification signal on a designated transmission symbol of a data subframe of an n-m communication period to send the notification signal.

The structure is as follows:

the announcement signal comprises at least one announcement identification bit;

the sending unit 120 is configured to send the notification flag using the SA subframe of the nth-m communication period.

The structure is four: the sending unit 120 is specifically configured to determine, according to the information content of the notification signal, a time-frequency resource for sending scheduling assignment SA information; sending the SA information by using the determined time-frequency resource; and the information content of the notification signal has a mapping relation with the time-frequency resource for sending the SA information.

The information content of the notification signal herein may be the information content of the aforementioned notification flag, so that in this embodiment, the time-frequency resource of the sending SA of the sending unit 120 may also be utilized to implicitly indicate the content of the notification signal. For example, if the notification flag is 1, the SA is sent on a specific time-frequency resource, so that when the UE serving as the receiving end receives the SA, it is determined that the information content of the notification signal is: the notification flag is 1.

In summary, the sending unit 120 may send the announcement signal by using any one of a synchronization subframe, a data subframe and an SA subframe, and certainly is not limited to these subframes to send the AS in a specific implementation process.

The UE described in this embodiment can be used to implement the information processing method described in the first embodiment of the method, and can mitigate resource contention and improve the probability that the UE with the first priority contends for the resource.

The second equipment embodiment:

as shown in fig. 7, the present embodiment provides a user equipment, where the user equipment includes:

a second determining unit 210 for determining a priority of the user equipment;

a detecting unit 220, configured to detect, in an nth-m communication period, an announcement signal sent by a ue with a first priority if the priority of the ue is a second priority;

a third determining unit 230, configured to determine, according to the notification signal, information related to resource contention or usage of the nth communication period.

The detecting unit 220 preferably detects the notification signal sent by the UE with the first priority in the nth communication period when there is data to be sent in the nth communication period, so as to reduce the number of times of UE detection with the second priority and reduce power consumption of the UE with the second priority. Here, n is selected as an integer of not less than 2 as in the method examples. The counting of the communication cycles starts from 1.

The specific structure of the second determining unit 210 described in this embodiment is similar to the specific structure of the first determining unit 110 in the previous device embodiment, and is not repeated here.

The specific structure of the detecting unit 220 may include a receiving interface, configured to receive the notification signal from the UE with the first priority, and the specific structure of the detecting unit 220 also includes an information processing structure with an information processing function, such as a parser, configured to parse and identify information, so as to determine whether there is data to be sent by the UE with the first priority in the nth communication cycle, and the UE will participate in resource contention of the nth communication cycle.

The third determining unit 230 is specifically configured to determine whether to participate in resource contention or resource usage in the nth communication period when it is determined that the UE having the first priority in the nth communication period will participate in resource contention or resource usage, or determine whether to participate in resource contention or resource usage in the nth communication period after a delay of several communication periods.

The description of the first priority and the second priority in this embodiment may refer to method embodiment one or method embodiment two, and will not be repeated here.

Several configurations of the detection unit 220 for detecting the announcement signal are provided below:

the structure I is as follows:

the detecting unit 220 is configured to detect a synchronization subframe of the n-m communication period; and acquiring the notification signal from the synchronous subframe. The detecting unit 220 may be configured to extract the announcement signal from the specified time-frequency resource of the synchronization subframe. For another example, the detecting unit 220 may be further configured to extract a synchronization sequence on the synchronization subframe; judging whether the synchronization sequence is a first type synchronization sequence or a second type synchronization sequence; and determining that the notification signal is received if the synchronization sequence is a first type of synchronization sequence.

The structure II is as follows:

the detecting unit 220 is configured to obtain the notification signal from a designated transmission symbol of a data subframe of the n-m communication period.

The structure is three:

the announcement signal comprises at least one announcement identification bit;

the detecting unit 220 may be configured to obtain the notification flag from an SA subframe or an SA subframe position of the n-m communication period.

The structure is four: the detecting unit 220 is specifically configured to detect, in an nth-m communication period, scheduling assignment SA information, and determine a time-frequency resource for sending the SA information; determining the information content of the notification signal according to the time-frequency resource for sending the SA information; and the information content of the notification signal has a mapping relation with the time-frequency resource for sending the SA information. In this embodiment, the detecting unit 220 determines the time-frequency resource for transmitting the SA by detecting the SA subframe, so as to determine the information content of the notification signal, for example, determine the content of the notification flag corresponding to the notification signal.

In summary, the UE in this embodiment and the UE in the first apparatus embodiment are UEs applied to the same communication scenario, and the UE in this embodiment can be used to implement the information processing method in the second method embodiment, so that the severity of resource contention can be reduced, and the probability that the UE of the first priority competes for resources is improved.

The following also provides two kinds of structures that the third determining unit 230 determines the related information;

the structure I is as follows:

the third determining unit 230 is specifically configured to determine to exit the resource contention or use of the nth communication period according to the notification signal if the notification signal is identified as true.

The structure II is as follows:

the third determining unit 230 is specifically configured to participate in the contention or the usage of the nth communication cycle resource with a first probability when the notification signal indicates that the user equipment of the first priority is to participate in the contention or the usage of the nth communication cycle resource; wherein when the announcement signal is not received or the announcement signal indicates that the user equipment of the first priority will not participate in the n-th communication cycle resource competition or use, the user equipment of the second priority will participate in the n-th communication cycle resource competition or use with a second probability; the first probability is less than the second probability.

The two structures can quickly and simply determine how the UE with the second priority participates in resource competition in the nth communication period.

In combination with any of the above embodiments, a specific application example is provided as follows:

example five:

as shown in fig. 8, in the communication system, UEs are divided into UEs of a first priority and UEs of a second priority, the first priority being higher than the second priority.

In the n-m communication period:

and the UE with the first priority determines that data is to be sent in the nth period and participates in competition or use of communication resources, and sends an announcement signal in the nth-m communication, for example, the announcement signal is sent in a broadcasting mode.

After receiving the notification signal, the UE of the second priority determines that the UE of the first priority will participate in the contention or use of the communication resource in the nth communication period, and determines to adopt an avoidance policy and quit the contention or use of the communication resource in the nth communication period.

In the nth communication period:

the UEs of the first priority participate in the contention of the communication resources, and some or all of the UEs of the second priority do not participate in the contention or use of the communication resources.

In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of the unit is only a logical functional division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed on a plurality of network units; some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, all the functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may be separately used as one unit, or two or more units may be integrated into one unit; the integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.

Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments; and the aforementioned storage medium includes: a mobile storage device, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. An information processing method, characterized in that the method comprises:

determining the priority of the user equipment;

2. The method of claim 1,

if the priority of the ue is the first priority and data is scheduled to be sent in the nth communication period, sending an announcement signal in the nth-m communication period includes:

3. The method of claim 2,

forming an announcement signal;

4. The method of claim 2,

the synchronous subframe is a subframe used for sending a synchronous sequence;

the sending the announcement signal by using the time-frequency resource of the synchronous subframe includes:

5. The method of claim 1,

6. The method of claim 1,

the announcement signal comprises at least one announcement identification bit;

transmitting a notice identification bit by utilizing a scheduling distribution SA subframe of an n-m communication period; and the SA sub-frame is a sub-frame carrying scheduling distribution information.

7. The method of claim 1, wherein,

the sending of the announcement signal in the n-m communication period includes:

8. The method of claim 1,

the user equipment of the first priority and the user equipment of the second priority have different attributes, or the currently transmitted service types are different.

9. An information processing method, characterized in that the method comprises:

determining a priority of the user equipment;

10. The method of claim 9,

detecting a synchronization subframe of the n-m communication period;

and acquiring the notification signal from the synchronous subframe.

11. The method of claim 10,

12. The method of claim 10,

the acquiring the announcement signal from the synchronous subframe includes:

extracting a synchronization sequence on the synchronization subframe;

13. The method of claim 9,

14. The method of claim 9,

the announcement signal comprises at least one announcement identification bit;

acquiring the notification identification bit from the scheduling and allocating SA subframe of the nth-m communication period; wherein the SA subframe is a subframe carrying SA information.

15. The method of claim 9, wherein,

16. The method of claim 9,

the determining, according to the announcement signal, related information of resource contention or use of the nth communication period includes:

17. The method of claim 9,

when the announcement signal indicates that the user equipment of the first priority is to participate in the n-th communication cycle resource contention or use, participating in the n-th communication cycle resource contention or use with a first probability;

wherein when the announcement signal is not received or the announcement signal indicates that the user equipment of the first priority will not participate in the n-th communication cycle resource competition or use, the user equipment of the second priority will participate in the n-th communication cycle resource competition or use with a second probability; the first probability is less than the second probability.

18. A user equipment, the user equipment comprising:

19. The user equipment of claim 18,

the transmitting unit is specifically configured to transmit the notification signal by using the synchronization subframe of the nth-m communication period.

20. The user equipment of claim 19,

the sending unit is specifically configured to form an announcement signal; and transmitting the announcement signal by using the time-frequency resource of the synchronous subframe.

21. The user equipment of claim 19,

the synchronous subframe is a subframe used for sending a synchronous sequence;

22. The user equipment of claim 18,

the sending unit is specifically configured to bear the announcement signal on a designated transmission symbol of a data subframe of an nth-m communication period to send the announcement signal.

23. The user equipment of claim 18,

the announcement signal comprises at least one announcement identification bit;

the sending unit is specifically configured to send a notification flag bit by using a scheduling assignment SA subframe of an nth-m communication period; the SA subframe is a subframe carrying SA information.

24. The user equipment of claim 18,

the sending unit is specifically configured to determine, according to the information content of the notification signal, a time-frequency resource for sending the scheduling assignment SA information; sending the SA information by using the determined time-frequency resource; and the information content of the notification signal has a mapping relation with the time-frequency resource for sending the SA information.

25. A user equipment, characterized in that,

the user equipment includes:

26. The user equipment of claim 25,

the detection unit is specifically configured to detect a synchronization subframe of the nth-m communication period; and acquiring the notification signal from the synchronous subframe.

27. The user equipment of claim 26,

the detection unit is specifically configured to extract the announcement signal from a specified time-frequency resource of the synchronization subframe.

28. The user equipment of claim 26, wherein;

the detection unit is specifically configured to extract a synchronization sequence on the synchronization subframe; judging whether the synchronization sequence is a first type synchronization sequence or a second type synchronization sequence; and determining that the notification signal is received if the synchronization sequence is a first type of synchronization sequence.

29. The user equipment of claim 25,

the detecting unit is specifically configured to acquire the announcement signal from a designated transmission symbol of the data subframe of the nth-m communication period.

30. The user equipment of claim 25,

the announcement signal comprises at least one announcement identification bit;

31. The user equipment of claim 25, wherein,

the detection unit is specifically configured to detect, in an nth-m communication period, scheduling assignment SA information and determine a time-frequency resource for transmitting the SA information; determining the information content of the notification signal according to the time-frequency resource for sending the SA information; and the information content of the notification signal has a mapping relation with the time-frequency resource for sending the SA information.

32. The user equipment of claim 25,

the third determining unit is specifically configured to determine to quit the resource contention or the resource usage of the nth communication period according to the notification signal.

33. The user equipment of claim 25,

the third determining unit participates in the contention or usage of the nth communication cycle resource with a first probability when the announcement signal indicates that the user equipment of the first priority will participate in the contention or usage of the nth communication cycle resource; wherein when the announcement signal is not received or the announcement signal indicates that the user equipment of the first priority will not participate in the n-th communication cycle resource competition or use, the user equipment of the second priority will participate in the n-th communication cycle resource competition or use with a second probability; the first probability is less than the second probability.