CN108668355B

CN108668355B - Communication method, network side equipment and terminal

Info

Publication number: CN108668355B
Application number: CN201710214892.9A
Authority: CN
Inventors: 刘瑾; 赵泓毅; 罗俊; 马江镭
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2017-04-01
Filing date: 2017-04-01
Publication date: 2021-07-09
Anticipated expiration: 2037-04-01
Also published as: CN108668355A

Abstract

The present application relates to the field of communications technologies, and in particular, to a communication method, a network side device, and a terminal. According to the method and the device, the function of the second identifier is separated from the function of the first identifier, so that the identifier can be flexibly expanded according to actual needs. Furthermore, the first identifier is used for synchronous access between the terminal and the network side device, the second identifier is used for data transmission between the terminal and the network side device, and the synchronous access of the terminal only needs to be synchronously accessed to a relatively larger communication range of the first identifier, but does not need to be synchronously accessed to a relatively smaller communication range identified by the second identifier, so that the burden of searching by the terminal can be reduced, and the interference randomization of physical channels or physical signals between different communication ranges can be ensured.

Description

Communication method, network side equipment and terminal

Technical Field

The present application relates to the field of communications technologies, and in particular, to a communication method, a network side device, and a terminal.

Background

In the existing LTE, when performing search, the UE determines the physical identifier where the UE is located by searching for a synchronization sequence, so as to perform downlink synchronization. The LTE network defines 504 different physical identities, which 504 different physical identities are further divided into 168 beacon groups, each group containing 3 beacons, wherein 3 beacons in each group are denoted with a primary synchronization signal PSS and 168 beacon groups are denoted with a secondary synchronization signal SSS.

With the popularization of high-density network deployment, a large number of transceiving nodes (TRPs) with different forms and functions will appear in a 5G New Radio Access (NR) system, and in order to support deployment flexibility, avoid Confusion of Identifiers (CIDs) and reduce the burden of identifier planning, the 5G network is required to introduce more CIDs, and even a working mode of TRP plug and play (plug and play) can be realized.

Disclosure of Invention

The application provides a communication method, which can flexibly expand the identification, reduce the searching burden of a terminal in the synchronous access process, ensure the interference randomization of physical channels or physical signals among different communication ranges, and reduce the signaling overhead for configuring the physical channels or the physical signals.

In one aspect, the present application provides a communication method, including:

sending a physical signal in a synchronous access process or a signal on the physical channel, wherein the physical signal in the synchronous access process or the signal on the physical channel is associated with a first identifier;

sending the second identifier or the information capable of indicating the second identifier; the second identification is associated with a physical signal in a data transmission process or a signal on the physical channel; the second identifier is different from the first identifier;

and sending the physical signal in the data transmission process or the signal on the physical channel.

A method of communication, comprising:

sending a physical signal in the synchronous access process or a signal on the physical channel, wherein the physical signal in the synchronous access process or the signal on the physical channel is associated with a first identifier;

sending the second identifier or the information capable of indicating the second identifier; the second identifier is different from the first identifier;

generating a physical signal in a data transmission process or a signal on the physical channel according to the second identifier;

In another aspect, the present application provides a communication method, including:

receiving a physical signal in a synchronous access process or a signal on the physical channel, wherein the physical signal in the synchronous access process or the signal on the physical channel is associated with a first identifier;

obtaining the first identifier according to a physical signal in the synchronous access process or a signal on the physical channel;

receiving the second identifier or the information capable of indicating the second identifier, wherein the second identifier is associated with a physical signal in a data transmission process or a signal on the physical channel; the second identifier is different from the first identifier;

receiving a physical signal in the data transmission process or a signal on the physical channel;

and processing the physical signal in the data transmission process or the signal on the physical channel according to the second identifier.

A method of communication, comprising:

receiving a physical signal in the synchronous access process or a signal on the physical channel, and acquiring a first identifier according to the physical signal in the synchronous access process or the signal on the physical channel;

receiving the second identifier or the information indicative of the second identifier; the second identifier is different from the first identifier;

In another aspect, the present application provides a network side device, including:

a network-side device, comprising:

a transceiver, configured to send a physical signal in a synchronous access procedure or a signal on the physical channel, where the physical signal in the synchronous access procedure or the signal on the physical channel is associated with a first identifier;

the information indicating the second identifier is used for sending the second identifier or the information indicating the second identifier; the second identification is associated with a physical signal in a data transmission process or a signal on the physical channel; the second identifier is different from the first identifier;

for sending the physical signal in the data transmission process or the signal on the physical channel.

A network-side device, comprising:

a transceiver, configured to send a physical signal in the synchronous access procedure or a signal on the physical channel, where the physical signal in the synchronous access procedure or the signal on the physical channel is associated with a first identifier;

the information indicating the second identifier is used for sending the second identifier or the information indicating the second identifier; the second identifier is different from the first identifier;

the device is used for sending a physical signal in the data transmission process or a signal on the physical channel;

and the processor is used for generating a physical signal in the data transmission process or a signal on the physical channel according to the second identifier.

In another aspect, the present application provides a terminal, including:

a terminal, comprising:

a transceiver, configured to receive a physical signal in a synchronous access procedure or a signal on the physical channel, where the physical signal in the synchronous access procedure or the signal on the physical channel is associated with a first identifier;

the processor is used for obtaining the first identifier according to a physical signal in the synchronous access process or a signal on the physical channel;

the transceiver is further configured to receive the second identifier or the information capable of indicating the second identifier, where the second identifier is associated with a physical signal in a data transmission process or a signal on the physical channel; the second identifier is different from the first identifier;

the transceiver is further configured to receive a physical signal in the data transmission process or a signal on the physical channel;

the processor is further configured to process a physical signal in the data transmission process or a signal on the physical channel according to the second identifier.

A terminal, comprising:

the transceiver is used for receiving the physical signal in the synchronous access process or the signal on the physical channel and obtaining a first identifier according to the physical signal in the synchronous access process or the signal on the physical channel;

the transceiver is further configured to receive the second identifier or the information indicative of the second identifier; the second identifier is different from the first identifier;

and the processor is used for processing the physical signal in the data transmission process or the signal on the physical channel according to the second identifier.

According to the method and the device, the function of the second identifier is separated from the function of the first identifier, so that the identifier can be flexibly expanded according to actual needs.

Furthermore, the first identifier is used for synchronous access between the terminal and the network side device, the second identifier is used for data transmission between the terminal and the network side device, and the synchronous access of the terminal only needs to be synchronously accessed to a relatively larger communication range of the first identifier, but does not need to be synchronously accessed to a relatively smaller communication range identified by the second identifier, so that the burden of searching by the terminal can be reduced, and the interference randomization of physical channels or physical signals between different communication ranges can be ensured.

Drawings

Fig. 1 shows a schematic diagram of the working principle of an embodiment of the present application.

Fig. 2 is a schematic diagram illustrating a relationship between a primary identity PCID and a secondary identity SCID according to the present application.

Fig. 3 is a schematic flow chart of the method of embodiment 1.1 of the present application.

Fig. 4 is a schematic flow chart of the method of embodiment 1.2 of the present application.

Fig. 5 is a schematic structural diagram of a network-side device in embodiment 3 of the present application.

Fig. 6 is a schematic structural diagram of a terminal according to embodiment 4 of the present application.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Various embodiments are described herein in connection with a terminal. A terminal can also refer to a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a User terminal, a wireless communication device, a User agent, or a User Equipment. An access terminal may be a cellular telephone, a cordless telephone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device having Wireless communication capabilities, a computing device or other processing device connected to a Wireless modem, a vehicle mounted device, a wearable device, a terminal in a future 5G network or a terminal in a future evolved PLMN network, etc.

Various embodiments are described herein in connection with a network side device. The Network side device communicates with a terminal, where the Network side device may be a Base Transceiver Station (BTS) in GSM or CDMA, a Base Station (NodeB, NB) in WCDMA system, an evolved Node B (eNB or eNodeB) in LTE system, a wireless controller in a Cloud Radio Access Network (CRAN) scenario, or a relay Station, an Access point, a vehicle-mounted device, a wearable device, a Network device in a future 5G Network, or a Network device in a future evolved PLMN Network.

As used in this specification, the terms "component," "module," "system," and the like are intended to refer to a computer-related entity, either hardware, firmware, a combination of hardware and software, or software in execution. For example, a component may be, but is not limited to being, a process running on a processor, an object, an executable, a thread of execution, a program, and/or a computer. By way of illustration, both an application running on a computing device and the computing device can be a component. One or more components can reside within a process and/or thread of execution and a component can be localized on one computer and/or distributed between 2 or more computers. In addition, these components can execute from various computer readable media having various data structures stored thereon. The components may communicate by way of local and/or remote processes such as in accordance with a signal having one or more data packets (e.g., data from two components interacting with another component in a local system, distributed system, and/or across a network such as the internet with other systems by way of the signal).

One embodiment of the present application provides a communication method, executed by a network side device on a transmitting side, including:

sending a physical signal in a synchronous access process or a signal on the physical channel, wherein the physical signal in the synchronous access process or the signal on the physical channel is associated with a first identifier so that a receiving party obtains the first identifier;

and sending the physical signal in the data transmission process or the signal on the physical channel so that a receiving party processes the physical signal in the data transmission process or the signal on the physical channel according to the second identifier.

Alternatively, a method of communication, comprising:

sending a physical signal in the synchronous access process or a signal on the physical channel, wherein the physical signal in the synchronous access process or the signal on the physical channel is associated with a first identifier so that a receiving party obtains the first identifier;

Accordingly, on the receiving side, a communication method performed by a terminal includes:

receiving a physical signal in a synchronous access procedure or a signal on the physical channel, wherein the physical signal in the synchronous access procedure or the signal on the physical channel is associated with a first identifier,

receiving the second identifier or the information indicative of the second identifier; the second identification is associated with a physical signal in a data transmission process or a signal on the physical channel; the second identifier is different from the first identifier;

Alternatively, a method of communication, comprising:

receiving a physical signal in the data transmission process or a signal on the physical channel,

For the above embodiments, fig. 1 shows a schematic diagram of the operation principle in a specific embodiment. The first identifier is exemplified by a primary identifier PCID, and the second identifier is exemplified by a secondary identifier SCID. Those skilled in the art will appreciate that the above-described PCID and SCID are merely examples and may have other names or alternatives.

The working principle of one embodiment of the application is as follows:

as shown in fig. 1, in this embodiment, the total identification CID includes a Primary identification PCID (PCID) and a Secondary identification SCID (SCID).

The PCID is used for associating a physical channel or a physical signal in a synchronous access process; that is, a physical channel or a physical signal required for the terminal and the network device to access synchronously is associated with the primary identity PCID.

The secondary identification SCID is used for associating a physical channel or a physical signal in a data transmission process, that is, the physical channel or the physical signal required by the terminal and the network side device in the data transmission process is associated with the secondary identification SCID. The secondary identity SCID may correspond to a MAC entity identity or other network layer entity identity, a Virtual Cell ID, a TRP identity, a beam identity, a band identity, a carrier identity, etc.

Optionally, in view of the above separation of the primary identification PCID function and the secondary identification SCID function, the present application, in one embodiment, includes an Enable identification encid (Enable/Disable SCID), as shown in fig. 1. The Enable identification EnSCID (Enable/Disable SCID) is used to indicate whether the secondary identification SCID is available. Equivalently, in this embodiment, a fallback mechanism is included, when the encid indicates that the SCID is not available, the total identification CID is fallback to the conventional identification pool, that is, only the primary identification PCID is used for identification, and synchronous access between the terminal and the network side device is completed; when the EnSCID indicates that the SCID is available, then the total identification CID includes a primary identification PCID used for synchronous access between the terminal and the network-side device and a secondary identification SCID used for data transmission between the terminal and the network-side device.

The embodiment in the application provides the primary identity PCID and the secondary identity SCID with different functions, so that flexible extension of the identity can be realized. The terminal completes synchronous access according to the primary identification PCID and the identification of the primary identification PCID (the maximum circle shown in fig. 2), and the terminal performs data transmission according to the secondary identification SCID and the identification of the secondary identification SCID (3 small circles shown in fig. 2).

The secondary identity SCID may correspond to a MAC entity identity or other network layer entity identity, a Virtual identity (Virtual Cell ID), a network side device identity, a beam identity, a frequency band identity, or a carrier identity, etc. In fig. 2, each secondary identity SCID corresponds to a Network node (NW Unit) that has at least a MAC functional entity. When the terminal performs data transmission with the network-side device, data transmission is performed between the terminal and the network node corresponding to the auxiliary identification SCID, as shown in fig. 2, the terminal performs data transmission with the network nodes corresponding to "SCID 1", "SCID 2", and "SCID 3".

In this application, the primary identification PCID function and the secondary identification SCID function are designed to be: the primary identification PCID is used for synchronous access between the terminal and the network side equipment, the auxiliary identification SCID is used for data transmission between the terminal and the network side equipment, and the synchronous access of the terminal only needs to be synchronously accessed to the primary identification PCID, so that the burden of searching by the terminal can be reduced.

Specifically, the physical signal or the signal on the physical channel during the synchronous access process between the terminal and the network side device includes:

1. system access (System access) signal or channel: including synchronization signals (PSS and/or SSS), broadcast channel (PBCH), system messages, Random Access Channel (RACH), etc.; for example, the following channels or signals are associated with the primary identification PCID: a generation sequence of PSS and/or SSS, contents of broadcast information, broadcast channel scrambling (scrambling), cyclic redundancy check mask (CRC mask) of broadcast information bits, and the like.

2. Common control channel (Common control channel): including channel scrambling codes scrambling, CRC mask, resource mapping of the channel, common control information content, etc., are associated with the primary identity PCID.

3. Generation of measurement signals for mobility measurements, related configurations, etc., are associated with the primary identity PCID.

Specifically, the physical channels or physical signals required by the terminal and the network side device in the data transmission process include: the system comprises an uplink and downlink channel information measurement reference signal, a demodulation reference signal of an uplink and downlink control channel or a data channel, a data channel and a user private control channel. The above-mentioned physical channel or physical signal required in the data transmission process is associated with the secondary identification SCID.

The uplink and downlink channel information measurement reference signals comprise at least one of the following: mobility measurement, channel information measurement, time-frequency offset calibration and wave beams.

The "identification of the associated physical channel or physical signal" refers to:

"identify associated physical channels" refers to: scrambling generated by the channel (scrambling), and/or cyclic redundancy check mask (CRC mask) of the information bits, and/or resource mapping of the channel, and/or information content carried by the channel, based on the identification. For example, the resource mapping is associated with the identifier, which means that the mapping manner of the physical channel or physical signal on the time, frequency and space resources is based on the identifier.

"identify an associated physical signal" means: the sequence generation of the physical signal is based on the identification. Sequence generation for e.g. UE-specific RS is based on identity.

Fig. 2 is a diagram illustrating the relationship between the primary identity PCID and the secondary identity SCID according to an embodiment.

As shown in fig. 2, fig. 2 shows the separation of the primary identification PCID function and the secondary identification SCID function, and also shows the correlation between the two. As an embodiment, in fig. 2, each secondary identification SCID corresponds to a Network node (NW Unit) having at least a MAC functional entity, and the terminal searches for a PCID by a synchronization signal, reads a corresponding PBCH, reads the corresponding secondary identification SCID from Remaining Minimum System Information (RMSI) corresponding to the Network node, and transmits control Information, reference signal, and data Information using a physical channel or physical signal associated with the secondary identification SCID.

The working principle of another embodiment of the present application is as follows:

the primary identification PCID is used for synchronous access between the terminal and the network side equipment, and the primary identification PCID and the auxiliary identification SCID are jointly used for data transmission between the terminal and the network side equipment; namely, the synchronous access between the terminal and the network side equipment is related to the primary identification PCID, and the data transmission between the terminal and the network side equipment is related to the primary identification PCID and the secondary identification SCID at the same time.

Several embodiments will be described in detail below.

Example 1

Example 1.1

In this embodiment, the second identifier is described with emphasis, and the second identifier is described by taking SCID as an example.

Fig. 3 is a schematic flow chart of the method of embodiment 1.1 of the present application. As shown in fig. 3, a communication method includes:

s101, the network side equipment sends the second identification or the information capable of indicating the second identification; the second identification is associated with a physical signal in a data transmission process or a signal on the physical channel; the second identifier is different from the first identifier.

In step S101, specifically, the physical signal or the signal on the physical channel during the data transmission between the terminal and the network side device includes: the uplink and downlink channel information measurement reference signal, the demodulation reference signal of the uplink and downlink control channel or data channel, the user private control channel, and the like, and the channels or signals are associated with the second identifier.

This second identifier may correspond to a MAC entity identifier, other network layer entity identifier, Virtual Cell ID (Virtual Cell ID), TRP identifier, beam identifier, band identifier, or carrier identifier, one to one.

The second identifier may correspond to an upper layer communication entity, e.g., a MAC entity, other network layer entity, etc., which may reduce interference between physical channels (physical channels divided by the MAC entity or other network layer entity).

The second identity may correspond to a physical layer communication entity, e.g., a TRP, beam, band, carrier, etc., which may reduce interference between physical channels (physical channels partitioned with TRP, beam, band, carrier).

The second identity may correspond to a virtual identity, which refers to a set of the above-mentioned communication entities, for example, a virtual unit composed of a plurality of TRPs/beams, which may reduce interference between physical channels (physical channels divided in the virtual unit).

The network side device may send the second identifier or the information capable of indicating the second identifier through the following bearers:

1. the second identity may be carried by at least one of the following information:

information bits of a physical broadcast channel PBCH, information bits of remaining minimum system information RMSI, information bits of system information, or higher layer signaling information bits.

2. The second identifier may also be carried by information that may indicate the second identifier, and the information that may indicate the second identifier includes: CRC mask of PBCH, scrambling code of PBCH, time-frequency resource position of PBCH, antenna port number of PBCH, transmission mode of PBCH, demodulation reference signal of PBCH, cyclic shift of PBCH coding block, bijective deformation of uncoded information bit, implicit information of RMSI, implicit information of system information, implicit information of high-level signaling, length of secondary synchronization signal SSS, subcarrier interval or bandwidth of primary synchronization signal PSS, number or position of synchronization signal blocks SS block in one synchronization signal pulse SS burst, number or position of synchronization signal blocks SS block in one synchronization signal pulse set SS burst, number or position of synchronization signal pulses SS burst in one synchronization signal pulse set SS burst. In other words, there is a pre-known correspondence between the information and the SCID. By adopting the information, the SCID can be implicitly indicated under the condition of not occupying additional information bits, and compared with the method for explicitly indicating the SCID by adopting the information bits, the method can save communication system resources.

S102, the network side equipment sends the physical signal in the data transmission process or the signal on the physical channel so that a receiving party processes the physical signal in the data transmission process or the signal on the physical channel according to the second identification.

S103, the terminal receives the second identification or the information capable of indicating the second identification; the second identification is associated with a physical signal in a data transmission process or a signal on the physical channel; the second identifier is different from the first identifier.

S104, the terminal receives the physical signal in the data transmission process or the signal on the physical channel.

And S105, the terminal processes the physical signal in the data transmission process or the signal on the physical channel according to the second identifier.

In step S105, the terminal processes the physical signal in the data transmission process or the signal on the physical channel according to the second identifier, so as to perform data transmission with the network side device.

In this embodiment, the first identifier is associated with a physical channel or a physical signal in a synchronous access process, and the second identifier is associated with a physical channel or a physical signal in a data transmission process. And the function is divided into a synchronous access process and a data transmission process, and the terminal only needs to search the range of the first identifier without searching the range of the common identifier of the first identifier and the second identifier, so that the burden of the terminal on searching can be reduced even if the total search range is reduced.

Example 1.2

In this embodiment, a process of a terminal communicating with a network side device is described on the basis of embodiment 1.1.

Fig. 4 is a schematic flow chart of the method of embodiment 1.2 of the present application. As shown in fig. 4, a communication method includes:

s201, a network side device sends a physical signal in a synchronous access process or a signal on the physical channel, and the physical signal in the synchronous access process or the signal on the physical channel is associated with a first identifier.

The network side device may send the first identifier through the following bearer: the first identity is carried by a secondary synchronization signal SSS, or by both the secondary synchronization signal SSS and a primary synchronization signal PSS.

The physical signal in the synchronous access process or the signal on the physical channel comprises:

1. system access signal or channel: including synchronization signals (PSS and/or SSS), broadcast channel (PBCH), system messages, Random Access Channel (RACH); i.e. the generated sequence of PSS and/or SSS is associated with the PCID, the content of the broadcast information, and/or the broadcast channel scrambling (scrambling), and/or the cyclic redundancy check mask (CRC mask) of the broadcast information bits, is associated with the PCID.

2. The channel generation of the Common control channel (Common control channel) includes scrambling, and/or CRC mask, and/or resource mapping of the channel, and/or Common control information content, associated with the PCID.

3. The measurement signal generation, related configuration of mobility measurements is associated with the PCID.

S202, the terminal receives a physical signal or a signal on the physical channel in the synchronous access process, and the physical signal or the signal on the physical channel in the synchronous access process is associated with the first identifier.

S203, the terminal obtains the first identifier according to the physical signal in the synchronous access process or the signal on the physical channel;

in S203, for example, in the LTE system, the cell ID is obtained through the PSS and the SSS.

S204, the network side equipment sends the second identification or the information capable of indicating the second identification; the second identifier is associated with a physical signal or a signal on the physical channel during data transmission.

S205, the network side device sends the physical signal in the data transmission process or the signal on the physical channel, so that a receiving party processes the physical signal in the data transmission process or the signal on the physical channel according to the second identifier.

S206, the terminal receives the second identifier or the information capable of indicating the second identifier; the second identification is associated with a physical signal in a data transmission process or a signal on the physical channel; the second identifier is different from the first identifier;

s207, the terminal receives the physical signal in the data transmission process or the signal on the physical channel.

And S208, the terminal processes the physical signal in the data transmission process or the signal on the physical channel according to the second identifier.

S204-S208 are described in detail in example 1.1 and are not described in detail herein.

A more specific example of this embodiment is given below:

the first identifier of this embodiment is carried by a secondary synchronization signal SSS, the secondary synchronization signal SSS may be composed of different M sequences or other sequences, and the combined result number of the different M sequences or other sequences may exceed 504 (e.g., 1000) of the existing LTE.

The network side device generates and transmits one of a plurality of secondary synchronization signals SSS.

The second identifier of this embodiment is carried by a CRC mask on PBCH.

For example, the correspondence between different CRC masks and SCIDs is as follows:

second label	CRC mask
		1	<0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0>
2	<1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1>
		3	<0,1,0,1,0,1,0,1,0,1,0,1,0,1,0,1>
…	…

And the network side equipment generates and sends a CRC mask in the table, and the CRC mask and the second identifier have a corresponding relation.

Example 1.3

This example differs from example 1.2 in that: S309-S311 are newly added, and there is no precedence relationship between S309-S311 and S304-S308, which is not limited in the present application. The newly added S309-S311 is a part related to the "enable identifier", and the network side device flexibly configures whether the second identifier is available through the "enable identifier".

A method of communication, comprising:

S301-S308；

S301-S308 are the same as S201-S208 in embodiment 1.2, and are not described herein.

S309, the network side equipment sends an enabling identifier or information capable of indicating the enabling identifier, wherein the enabling identifier is used for indicating whether the second identifier is available.

The Enable identifier in step S309 is "Enable/Disable" shown in fig. 1, and is equivalent to a switch of the second identifier, and is used to indicate whether the second identifier is available, that is, a fallback mechanism is introduced, when the Enable identifier encid indicates that the second identifier is not available, then the total identifier CID is rolled back to a traditional identifier pool, that is, only the primary identifier PCID is used for identifying, and synchronous access between the terminal and the network-side device is completed; when the EnSCID indicates that the second identifier is available, the total identifier is composed of a first identifier and a second identifier, wherein the first identifier is used for synchronous access between the terminal and the network-side device, and the second identifier is used for data transmission between the terminal and the network-side device.

The enabling identifier and the bearer of the data information capable of indicating the enabling identifier are the same as the second identifier or the bearer of the data information capable of indicating the second identifier, which are described in detail in the first embodiment and are not repeated herein.

S310, the terminal receives an enabling identification or information capable of indicating the enabling identification.

S311, the terminal judges whether the auxiliary identification indicated by the enabling identification is available according to the enabling identification.

In step S310, the terminal determines whether the auxiliary identifier indicated by the enabling identifier is available according to the enabling identifier. When the EnSCID indicates that the second identifier is unavailable, the total identifier CID is returned to a traditional identifier pool, namely, only the PCID is used for identification, and synchronous access between the terminal and the network side equipment is completed; when the EnSCID indicates that the second identifier is available, the total identifier is composed of a first identifier and a second identifier, wherein the first identifier is used for synchronous access between the terminal and the network-side device, and the second identifier is used for data transmission between the terminal and the network-side device.

The network side device may independently configure and send the enable identifier EnSCID, or may configure and send the enable identifier EnSCID and the second identifier jointly. In this embodiment, the network side device independently configures and sends the enabling identifier encid. Next embodiment, in embodiment 1.4, the enabling identity encid and the second identity are configured and sent together as an example.

Hereinafter, 2 specific embodiments of the present embodiment are given:

the second identifier is illustrated by taking the secondary identifier SCID as an example, and the first identifier is illustrated by taking the primary identifier PCID as an example.

Embodiment 1:

the primary identification PCID in this embodiment is carried by the secondary synchronization signal SSS and the primary synchronization signal PSS together. For example, if PSS uses different ZC sequences (three different ZC sequences in LTE) and SSS sequences use different M-sequence interleaving combinations, PCID is ZC sequence number + SSS sequence number.

The embodiment comprises an auxiliary identification SCID and an enabling identification EnSCID, and the SCID and the EnSCID are respectively and independently configured and sent.

The secondary identification SCID of the present embodiment is indicated by introducing new information bits on the PBCH.

The enabling identity encid of this embodiment is indicated using a different scrambling code on PBCH. For example, EnSCID is enabled when the scrambling code is sequence 1, and EnSCID is disabled when the scrambling code is sequence 2.

If EnSCID is enabled, CID is PCID + SCID; if EnSCID is not enabled, CID equals PCID.

Embodiment 2:

The secondary identification SCID of the present embodiment is indicated by length information of the secondary synchronization signal SSS sequence.

The enable flag encid of the present embodiment is indicated by the number of SS blocks in each SS burst. For example, when detecting that the SS burst contains N SS blocks, the encid indicates enabled, and when detecting that the SS burst contains M SS blocks, the encid indicates not enabled.

Example 1.4

This example differs from example 1.3 in that: in this embodiment, the enabling identifier encid and the second identifier are combined, or referred to as a combined code, that is, the enabling identifier encid and the second identifier are respectively indicated by using different values in the same information bit field. Compared with the enabling identifier EnSCID and the second identifier independent identifier in embodiment 1.3, the embodiment combines the enabling identifier EnSCID and the second identifier to identify, so that resources configured and transmitted by network side equipment can be saved, and decoding overhead of a terminal can be saved.

A method of communication, comprising:

S401-S403；

S401-S403 are the same as S201-S203 in example 1.2 and are not described in detail here.

S404, the network side device generates a joint identifier or information capable of indicating the joint identifier, wherein the joint identifier includes the second identifier and the enabling identifier, and the enabling identifier is used for indicating whether the second identifier is available.

In step S404, the joint identifier includes the secondary identifier and the enabling identifier, where the enabling identifier is used to indicate whether the second identifier is available, that is, the available second identifier is available through the joint identifier.

The joint identifier or the bearer of the data information capable of indicating the joint identifier and the second identifier or the bearer of the information capable of indicating the second identifier are detailed in the first embodiment, which is not repeated herein.

S405, the network side equipment sends the joint identification or the data information capable of indicating the joint identification.

In step S405, the network side device transmits and the terminal receives the data accordingly.

S406, the terminal acquires an available second identifier according to the combined identifier.

In the following, 1 specific embodiment of the present example is given:

The enabling identifier EnSCID and the auxiliary identifier SCID in this embodiment are jointly identified and carried by information bits of PBCH.

An example, as shown in the following table: the "Status" in the table is a joint identifier, and the "Status" has a corresponding relationship with the auxiliary identifier SCID and the enabled identifier encid, as follows:

Status	S-CID	EnSCID
			0 0 0	0	EN
0 0 1	1	EN
			0 1 0	2	EN
0 1 1	3	EN
			1 0 0	4	EN
1 0 1	5	EN
			1 1 0	/	Dis
1 1 1	/	/

that is, when the terminal receives the joint identifier "Status" of "011", it is equivalent to receiving the secondary identifier SCID of "3" and the enable identifier encid indicating availability. When the terminal receives that the joint identifier "Status" is "110" or "111", it indicates that the EnSCID is not available, and does not pay attention to the secondary identity SCID.

In this embodiment, the joint identifier "Status" is adopted, which can indicate the auxiliary identifier and the enabling identifier at the same time, and as the above corresponding relationship, the auxiliary identifier and the enabling identifier are indicated at the same time by using the 3Bit information, thus, the joint identifier can save the resources configured and sent by the network side device; according to the corresponding relation set in the above table, correspondingly, when the terminal decodes, if the first two digits are "11", it is known that the EnSCID is unavailable, and the terminal does not need to decode the 3 rd digit, so that the adoption of the joint identifier also helps to save the terminal decoding overhead.

Example 2

This embodiment is different from the above-described embodiment 1 of class 1 in that:

in embodiment 1, the first identifier is used for synchronous access between the terminal and the network side device, and the second identifier is used for data transmission between the terminal and the TRP.

In embodiment 2, a first identifier is used for synchronous access between a terminal and a network side device, and the first identifier and a second identifier are used for data transmission between the terminal and the network side device; in this embodiment 2, an enable identifier may also be set for a second identifier that is used together with the first identifier for data transmission between the terminal and the TRP, so as to turn on or off the second identifier; when the enabling identifier is started, the synchronous access between the terminal and the network side equipment is associated with the first identifier, and the data transmission between the terminal and the network side equipment is associated with the first identifier and the second identifier together; when the enabling identifier is closed, the synchronous access between the terminal and the network side equipment is associated with the first identifier, and the data transmission between the terminal and the network side equipment is only associated with the first identifier. The randomization of the interference of the physical channel and the physical signal in and between different communication ranges can be guaranteed simultaneously.

In this embodiment, the bearers of the first identifier, the bearers of the second identifier, and the bearers of the enable identifier are the same as those described in the above embodiment of type 1, and are not described herein again.

Specifically, the implementation manner of embodiment 2 may be:

sending a physical signal in a synchronous access process or a signal on the physical channel, wherein the physical signal in the synchronous access process or the signal on the physical channel is associated with a first identifier; the first identifier is further used for associating a physical channel or a physical signal in the data transmission process with the second identifier.

Specifically, the implementation manner of embodiment 2 may be:

and generating a physical signal or a signal on the physical channel in the data transmission process according to the first identifier and the second identifier.

In this embodiment, the bearers of the first identifier and the bearers of the second identifier are the same as those described in the foregoing embodiment 1, and are not described herein again.

Example 3

The present embodiment describes a network side device, and it should be understood that the network side device described in the present embodiment has any function of the network side device in the above method.

As a basic implementation, as shown in fig. 5, a network side device includes: a processor 501 and a transceiver 502.

A transceiver 502, configured to send a physical signal in a synchronous access procedure or a signal on the physical channel, where the physical signal in the synchronous access procedure or the signal on the physical channel is associated with a first identifier;

The network side device transceiver as described above adds a function of sending the second identifier, where the function of sending the second identifier is used for data transmission between the terminal and the network side device, and the function of the second identifier is separated from the function of the first identifier (the first identifier is used for synchronous access between the terminal and the network side device), so that the identifier can be flexibly extended according to actual needs.

Furthermore, the first identifier is used for synchronous access between the terminal and the network side device, the second identifier is used for data transmission between the terminal and the network side device, and the synchronous access of the terminal only needs to be synchronously accessed to a relatively large range of the first identifier, and does not need to be synchronously accessed to a relatively small range identified by the first identifier and the second identifier together, so that the burden of searching by the terminal can be reduced.

In another embodiment of the method of the present invention,

the transceiver 502 is further configured to send an enabling identifier or information capable of indicating the enabling identifier, where the enabling identifier is used to indicate whether the second identifier is available; or, sending a joint identifier or information capable of indicating the joint identifier, where the joint identifier includes the second identifier and the enabling identifier, and the enabling identifier is used to indicate whether the second identifier is available.

In the embodiment, the effect of flexibly expanding the auxiliary identifier is achieved by enabling the identifier.

The bearer of the joint identifier/enabling identifier is the same as the bearer of the auxiliary identifier, which is not described herein again; the bearer of the data information of the joint identifier can be indicated, and the bearer of the data information of the secondary identifier can be indicated, which is not repeated here.

The transceiver 502 is further configured to transmit the joint identifier or data information capable of indicating the joint identifier.

In this embodiment, the joint identifier indicates the auxiliary identifier and the corresponding enabling identifier at the same time, so that resources configured and sent by the network side device can be saved, and terminal decoding overhead can be saved.

In another embodiment, the transceiver 502, the processed first identifier, is further used to associate a physical channel or a physical signal in the data transmission process with the second identifier.

In this embodiment, the first identifier is used for synchronous access between the terminal and the TRP, and the first identifier and the second identifier are commonly used for data transmission between the terminal and the TRP.

The above "another embodiment" is based on the basic embodiment.

Example 4

The present embodiment describes a terminal, and it should be understood that the terminal described in the present embodiment has any functions of the terminal in the above method.

As a basic embodiment, as shown in fig. 6, a terminal includes:

a transceiver 602, configured to receive a physical signal in a synchronous access procedure or a signal on the physical channel, where the physical signal in the synchronous access procedure or the signal on the physical channel is associated with a first identifier; the receiver is further configured to receive the second identifier or the information capable of indicating the second identifier, where the second identifier is associated with a physical signal in a data transmission process or a signal on the physical channel; the second identifier is different from the first identifier; and is further configured to receive a physical signal in the data transmission process or a signal on the physical channel.

A processor 601, configured to obtain the first identifier according to a physical signal in the synchronous access process or a signal on the physical channel. And the processor is further configured to process a physical signal in the data transmission process or a signal on the physical channel according to the second identifier.

The physical channel or physical signal in the data transmission process includes at least one of the following: the information measurement reference signal of the uplink and downlink channel, the demodulation reference signal of the uplink and downlink control channel or the data channel, the data channel or the user private control channel.

The second identity is carried by at least one of the following information: information bits of PBCH, information bits of RMSI, information bits of system information, high layer signaling information bits, or dynamic signaling.

The data information indicative of the second identity is carried by at least one of: the method comprises the steps of CRC mask of PBCH, scrambling code of PBCH, time-frequency resource position of PBCH, number of antenna ports of PBCH, transmission mode of PBCH, demodulation reference signal of PBCH, cyclic shift of PBCH coding blocks, bijective deformation of uncoded information bits, implicit information of RMSI, implicit information of system information, implicit information of high-level signaling, length of secondary synchronization signal SSS, subcarrier interval or bandwidth of primary synchronization signal PSS, number or position of synchronization signal blocks SS block in one synchronization signal pulse SS burst, number or position of synchronization signal blocks SS burst in one synchronization signal pulse set SS burst set, or number or position of synchronization signal pulses SS burst in one synchronization signal pulse set SS burst set.

In the terminal as described above, the transceiver adds a function of receiving a second identifier, where the second identifier is used for data transmission between the terminal and the network-side device, and the function of the second identifier is separated from the function of the first identifier (where the first identifier is used for synchronous access between the terminal and the network-side device), so that the identifier can be flexibly extended according to actual needs by matching with the network-side device.

Furthermore, the first identifier is used for synchronous access between the terminal and the network side device, the second identifier is used for data transmission between the terminal and the network side device, and the synchronous access of the terminal only needs to be synchronously accessed to the first identifier which is relatively large, and does not need to be synchronously accessed to the second identifier which is relatively small and is jointly identified by the first identifier and the second identifier, so that the burden of searching by the terminal can be reduced.

In another embodiment, the transceiver 602 is further configured to receive a first identifier. The first identification is carried by a Secondary Synchronization Signal (SSS); or carried jointly by the secondary synchronization signal SSS and the primary synchronization signal PSS.

The processor 601 is further configured to acquire a physical channel or a physical signal in a synchronous access process according to the first identifier; the physical channel or physical signal in the synchronous access process includes at least one of the following: a system access channel, a system access signal, a common control channel, or a measurement signal for mobility measurement.

In this embodiment, the function of the second identifier is separated from the function of the first identifier, so that the identifier can be flexibly expanded according to actual needs; the first identification is used for synchronous access between the terminal and the network side equipment, the second identification is used for data transmission between the terminal and the network side equipment, and the synchronous access of the terminal only needs to be synchronously accessed to the first identification which is relatively large, but does not need to be synchronously accessed to the second identification which is relatively small and is jointly identified by the first identification and the second identification, so that the burden of searching by the terminal can be reduced.

In another embodiment, the transceiver 602 is further configured to receive an enabling identifier or data information indicating the enabling identifier. The bearer of the enabled identifier is the same as the bearer of the second identifier, which is not described herein; the bearer of the data information of the enabling identifier can be indicated, and the bearer of the data information of the second identifier can be indicated, which is not repeated here.

The processor 601 is further configured to determine whether the second identifier indicated by the enabling identifier is available according to the enabling identifier.

In this embodiment, by enabling the identifier, an effect of flexibly extending the second identifier is achieved.

In another embodiment, the transceiver 602 is further configured to receive a joint identifier or data information indicating the joint identifier. The bearer of the joint identifier is the same as the bearer of the second identifier, which is not described herein; the bearer of the data information of the joint identifier can be indicated, and the bearer of the data information of the second identifier can be indicated, which is not repeated here.

The processor 601 is further configured to obtain an available second identifier according to the joint identifier.

In this embodiment, the second identifier and the corresponding enabling identifier are simultaneously indicated by the joint identifier, so that resources configured and transmitted by the network side device can be saved, and terminal decoding overhead can be saved.

In another embodiment, the transceiver 602 is further configured to receive a first identifier, where the first identifier is used to associate a physical channel or a physical signal in a data transmission process with the second identifier.

The processor 601 is further configured to obtain a physical channel or a physical channel in a data transmission process according to the first identifier and the second identifier

In the embodiment, the first identifier is used for synchronous access between the terminal and the network side, and the first identifier and the second identifier are commonly used for data transmission between the terminal and the TRP. The randomization of the interference of the physical channel and the physical signal in and between different communication ranges can be guaranteed simultaneously.

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. A method of communication, comprising:

sending a second identifier or information capable of indicating the second identifier; the second identification is associated with a physical signal in a data transmission process or a signal on the physical channel; the second identifier is different from the first identifier;

sending a physical signal in the data transmission process or a signal on the physical channel;

wherein the data information indicative of the second identity is carried by at least one of: CRC mask of PBCH, scrambling code of PBCH, time-frequency resource position of PBCH, number of antenna ports of PBCH, transmission mode of PBCH, demodulation reference signal of PBCH, cyclic shift of PBCH coding block, bijective deformation of uncoded information bit, implicit information of RMSI, implicit information of system information, implicit information of high-level signaling, length of secondary synchronization signal SSS, subcarrier interval or bandwidth of primary synchronization signal PSS, number or position of synchronization signal blocks SS block in one synchronization signal pulse SS burst, number or position of synchronization signal blocks SS burst in one synchronization signal pulse set SS burst, or number or position of synchronization signal pulses SS burst in one synchronization signal pulse set SS burst;

and/or, the second identification is carried by at least one of the following information: information bits of a physical broadcast channel PBCH, information bits of remaining minimum system information RMSI, information bits of system information, high layer signaling information bits, or dynamic signaling information bits.

2. A method of communication, comprising:

sending a second identifier or information capable of indicating the second identifier; the second identifier is different from the first identifier;

3. A method of communication, comprising:

receiving a second identifier or information capable of indicating the second identifier, wherein the second identifier is associated with a physical signal in a data transmission process or a signal on the physical channel; the second identifier is different from the first identifier;

processing the physical signal in the data transmission process or the signal on the physical channel according to the second identifier;

4. A method of communication, comprising:

receiving a physical signal in a synchronous access process or a signal on the physical channel, and acquiring a first identifier according to the physical signal in the synchronous access process or the signal on the physical channel;

receiving a second identifier or information capable of indicating the second identifier; the second identifier is different from the first identifier;

receiving a physical signal in a data transmission process or a signal on the physical channel;

processing a physical signal in a data transmission process or a signal on the physical channel according to the second identifier;

5. A method of communication, characterized in that it comprises all the features of the method of claim 1, and in that it further comprises:

sending an enabling identifier or information capable of indicating the enabling identifier, wherein the enabling identifier is used for indicating whether a second identifier is available or not;

alternatively, the first and second electrodes may be,

and sending a joint identifier or information capable of indicating the joint identifier, wherein the joint identifier comprises the second identifier and the enabling identifier, and the enabling identifier is used for indicating whether the second identifier is available.

6. A method of communication, characterized in that it comprises all the features of the method of claim 2, and in that it further comprises:

alternatively, the first and second electrodes may be,

7. A method of communication, characterized in that it comprises all the features of the method of claim 3, and in that it further comprises:

receiving an enabling identifier or information capable of indicating the enabling identifier, wherein the enabling identifier is used for indicating whether a second identifier is available or not;

alternatively, the first and second electrodes may be,

and receiving a joint identifier or information capable of indicating the joint identifier, wherein the joint identifier comprises the second identifier and the enabling identifier, and the enabling identifier is used for indicating whether a secondary identifier is available.

8. A method of communication, characterized in that it comprises all the features of the method of claim 4, and in that it further comprises:

alternatively, the first and second electrodes may be,

9. A method of communication, characterized in that it comprises all the features of the method of claim 1 and in that said first identity is also used to associate with said second identity a physical channel or a physical signal in said data transmission.

10. A method of communication comprising all the features of the method of claim 2, and wherein generating a physical signal during data transmission or a signal on the physical channel based on the second identifier comprises: and generating a physical signal or a signal on the physical channel in the data transmission process according to the first identifier and the second identifier.

11. A method of communication, characterized in that it comprises all the features of the method of claim 3, and in that said first identity is also used to associate with said second identity a physical channel or physical signal in said data transmission;

the processing the physical signal in the data transmission process or the signal on the physical channel according to the second identifier includes:

and processing the physical signal in the data transmission process or the signal on the physical channel according to the first identifier and the second identifier.

12. A method of communication, characterized in that the method comprises all the features of the method of claim 4 and that processing the physical signal during the data transmission or the signal on the physical channel according to the second identification comprises:

13. A method of communication comprising all the features of the method of any one of claims 1 to 12, and wherein the physical channels or physical signals during data transmission comprise at least one of: uplink and downlink measurement reference signals, random access channels or random access preamble signals, paging channels or signals, demodulation reference signals of uplink and downlink control channels or data channels, and data channels or control channels.

14. A method of communication, characterized in that it comprises all the features of the method of any of claims 1 to 12, and that synchronizing physical channels or physical signals in an access procedure comprises at least one of the following: a synchronization channel or synchronization signal, a broadcast channel or broadcast signal, a random access channel or random access signal, a control channel or a measurement signal for mobility measurements.

15. A method of communication, characterized in that it comprises all the features of the method of any one of claims 1 to 12 and in that the first identity is carried by a secondary synchronization signal SSS;

or carried jointly by the secondary synchronization signal SSS and the primary synchronization signal PSS.

16. A method of communication, characterized in that the method comprises all the features of the method of any of claims 6 to 12, and that the enabling identity or the joint identity is carried by at least one of the following information:

information bits of PBCH, information bits of RMSI, information bits of system information, high layer signaling information bits, or dynamic signaling information bits.

17. A method of communication, characterized in that the method comprises all the features of the method of any of claims 6 to 12, and that the data information indicative of the enabling identification or the data information indicative of the joint identification is carried by at least one of the following information: the method comprises the steps of CRC mask of PBCH, scrambling code of PBCH, time-frequency resource position of PBCH, number of antenna ports of PBCH, transmission mode of PBCH, demodulation reference signal of PBCH, cyclic shift of PBCH coding blocks, bijective deformation of uncoded information bits, implicit information of RMSI, implicit information of system information, implicit information of high-level signaling, length of secondary synchronization signal SSS, subcarrier interval or bandwidth of primary synchronization signal PSS, number or position of synchronization signal blocks SS block in one synchronization signal pulse SS burst, number or position of synchronization signal blocks SS burst in one synchronization signal pulse set SS burst set, or number or position of synchronization signal pulses SS burst in one synchronization signal pulse set SS burst set.

18. A network-side device, comprising:

the system comprises a first identification and a second identification, wherein the first identification is used for transmitting the first identification or information capable of indicating the first identification; the second identification is associated with a physical signal in a data transmission process or a signal on the physical channel; the second identifier is different from the first identifier;

19. A network-side device, comprising:

the system comprises a first identification and a second identification, wherein the first identification is used for transmitting the first identification or information capable of indicating the first identification; the second identifier is different from the first identifier;

the device is used for sending a physical signal in a data transmission process or a signal on the physical channel;

the processor is used for generating a physical signal in a data transmission process or a signal on the physical channel according to the second identifier;

20. A network-side device, characterized in that it comprises all the features of the network-side device of claim 18 and in that it comprises:

the transceiver is further configured to transmit an enabling identifier or information capable of indicating the enabling identifier, where the enabling identifier is used to indicate whether the second identifier is available; or, sending a joint identifier or information capable of indicating the joint identifier, where the joint identifier includes the second identifier and the enabling identifier, and the enabling identifier is used to indicate whether the second identifier is available.

21. A network-side device, characterized in that it comprises all the features of the network-side device of claim 19 and in that it comprises:

22. A network-side device, characterized in that it comprises all the features of the network-side device of claim 18 and in that it comprises: the first identifier is also used to associate with the second identifier a physical channel or physical signal in the data transmission process.

23. A network-side device, characterized in that it comprises all the features of the network-side device of claim 19 and in that it comprises: generating a physical signal or a signal on the physical channel in a data transmission process according to the second identifier comprises:

24. A terminal, comprising:

the transceiver is used for receiving a physical signal or a signal on a physical channel in a synchronous access process, wherein the physical signal or the signal on the physical channel in the synchronous access process is associated with a first identifier;

the transceiver is further configured to receive a second identifier or information capable of indicating the second identifier, where the second identifier is associated with a physical signal in a data transmission process or a signal on the physical channel; the second identifier is different from the first identifier;

the transceiver is further configured to receive a physical signal in a data transmission process or a signal on the physical channel;

the processor is further configured to process a physical signal in the data transmission process or a signal on the physical channel according to the second identifier;

25. A terminal, comprising:

the transceiver is used for receiving a physical signal or a signal on a physical channel in a synchronous access process and acquiring a first identifier according to the physical signal or the signal on the physical channel in the synchronous access process;

the transceiver is further used for receiving a second identifier or information capable of indicating the second identifier; the second identifier is different from the first identifier;

the processor is used for processing the physical signal in the data transmission process or the signal on the physical channel according to the second identifier;

26. A terminal, characterized in that it comprises all the features of the terminal of claim 24, and in that:

the transceiver is further configured to receive an enabling identifier or information capable of indicating the enabling identifier, where the enabling identifier is used to indicate whether the second identifier is available;

alternatively, the first and second electrodes may be,

the transceiver is further configured to receive a joint identifier or information that may indicate the joint identifier, where the joint identifier includes the second identifier and the enabling identifier, and the enabling identifier is used to indicate whether a secondary identifier is available.

27. A terminal, characterized in that it comprises all the features of the terminal of claim 25, and in that:

alternatively, the first and second electrodes may be,

28. A terminal, characterized in that it comprises all the features of the terminal of claim 24, and in that: the first identifier is also used for associating a physical channel or a physical signal in the data transmission process with the second identifier;

processing the physical signal in the data transmission process or the signal on the physical channel according to the second identifier includes:

29. A terminal, characterized in that it comprises all the features of the terminal of claim 25, and that processing the physical signals during the data transmission or the signals on the physical channel according to the second identity comprises:

30. A network side device, characterized in that the network side device includes all the features of the network side device of any one of claims 18 to 23, and the physical channel or physical signal in the data transmission process includes at least one of the following: uplink and downlink measurement reference signals, random access channels or random access preamble signals, paging channels or signals, demodulation reference signals of uplink and downlink control channels or data channels, and data channels or control channels.

31. A terminal, characterized in that it comprises all the features of a terminal according to any of claims 24 to 29, and that the physical channels or physical signals during data transmission comprise at least one of the following: uplink and downlink measurement reference signals, random access channels or random access preamble signals, paging channels or signals, demodulation reference signals of uplink and downlink control channels or data channels, and data channels or control channels.

32. A network side device, characterized in that the network side device includes all the features of the network side device of any one of claims 18 to 23, and that synchronizing physical channels or physical signals in an access procedure includes at least one of the following: a synchronization channel or synchronization signal, a broadcast channel or broadcast signal, a random access channel or random access signal, a control channel or a measurement signal for mobility measurements.

33. A terminal characterised in that it comprises all the features of the terminal according to any of claims 24 to 29 and in that synchronising the physical channels or signals in the access procedure comprises at least one of: a synchronization channel or synchronization signal, a broadcast channel or broadcast signal, a random access channel or random access signal, a control channel or a measurement signal for mobility measurements.

34. A network side device, characterized in that it comprises all the features of the network side device of any of claims 18 to 23, and that the first identity is carried by a secondary synchronization signal SSS.

35. A terminal characterised in that it includes all the features of the terminal of any one of claims 24 to 29 and in that the first identity is carried by a secondary synchronization signal SSS.