CN115665854A

CN115665854A - User equipment, base station and information notification method

Info

Publication number: CN115665854A
Application number: CN202211358287.6A
Authority: CN
Inventors: 熊琦; 钱辰; 喻斌; 孙霏菲
Original assignee: Samsung Electronics Co Ltd
Current assignee: Samsung Electronics Co Ltd
Priority date: 2017-06-23
Filing date: 2017-06-23
Publication date: 2023-01-31
Also published as: CN109121201A; CN109121201B

Abstract

The embodiment of the invention provides user equipment, a base station and an information notification method, which comprise the following steps: the base station receives an uplink signal sent by User Equipment (UE), determines an uplink beam to be used by the UE and/or timing advance information corresponding to the uplink beam to be used by the UE according to the uplink signal, then sends beam indication information and/or timing advance information to the UE, then the user equipment determines the uplink beam to be used and/or the timing advance information corresponding to the uplink beam to be used according to the beam indication information and/or the timing advance information, and then the user equipment sends the uplink signal to the base station through the uplink beam to be used and/or the timing advance information corresponding to the uplink beam to be used. According to the user equipment, the base station and the information notification method provided by the invention, the base station can notify the user equipment of the beam indication information and/or the timing advance information.

Description

User equipment, base station and information notification method

The present application is a divisional application of the invention patent application having an application number of 201710491173.1 and entitled "user equipment, base station, and method for information notification".

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a user equipment, a base station, and an information notification method.

Background

With the rapid development of the information industry, especially the growing demand from the mobile internet and IoT (internet of things), the future mobile communication technology is challenged unprecedentedly. As according to the international telecommunication union ITU report ITU-R M [ imt. Beyond 2020.Traffic ], it is expected that by 2020, the mobile traffic will increase nearly 1000 times in comparison to 2010 (era 4G), the number of user equipment connections will also exceed 170 billion, and as the vast number of IoT devices gradually penetrates into the mobile communication network, the number of connected devices will be more dramatic. To address this unprecedented challenge, the communications industry and academia have developed a wide range of 5G (5-Generation, fifth Generation mobile communications technology) for the 2020. Future 5G frameworks and overall goals are currently discussed in ITU's report ITU-R M [ imt.vision ], wherein 5G demand prospects, application scenarios and various important performance indicators are specified. For the new requirements in 5G, ITU's report ITU-R M [ imt. User TECHNOLOGY tree ] provides information related to the technical trend of 5G, aiming at solving significant problems of significant improvement of system throughput, consistency of user experience, scalability to support IoT, latency, energy efficiency, cost, network flexibility, support of emerging services, and flexible spectrum utilization.

In the standard research of 5G, a downlink transmission beam is bound to an available random access resource (random access channel resource and/or random access preamble resource), so that a base station can obtain an available downlink transmission beam selected by a UE (User Equipment) through a detected preamble from the UE and/or a time-frequency resource in which the detected preamble is located. However, in general, a downlink transmission beam used by an SS-block (synchronization signal block) is a wide beam, and when a UE accesses a system after a random access process, beam management or beam modification operation needs to be continued to obtain a better (narrower) beam to obtain a higher beamforming gain; alternatively, when the UE in the connected state moves or changes the environment, the base station detects that the UE has a better beam available, and thus notifies the UE to change a new beam, and at this time, the timing advance value of the UE may change due to the change or adjustment of the beam, and thus notifies the UE of the new timing advance value or timing advance adjustment amount.

In the existing 5G standard discussion, a beamforming manner is used in a communication system, but when a user equipment needs to adjust or change a used transmission beam, timing information changes, a base station needs to measure and calculate new timing information and notify the new timing information to a UE, and since the change of the timing information is related to a change of beam adjustment, how to notify the new timing information to the UE becomes a key problem to be solved.

Disclosure of Invention

In order to overcome the above technical problems or at least partially solve the above technical problems, the following technical solutions are proposed:

according to an aspect, an embodiment of the present invention provides an information notification method, which is performed by a base station, and includes:

receiving an uplink signal sent by User Equipment (UE), and determining an uplink beam to be used by the UE and/or timing advance information corresponding to the uplink beam to be used by the UE according to the uplink signal;

and sending the beam indication information and/or the timing advance information to the UE, wherein the beam indication information is used for indicating an uplink beam to be used by the UE.

The embodiment of the present invention provides another information notification method according to another aspect, which is performed by a user equipment, and includes:

sending an uplink signal to a base station;

receiving beam indication information and/or timing advance information sent by a base station, and determining uplink beams to be used and/or timing advance information corresponding to the uplink beams to be used according to the beam indication information and/or the timing advance information;

and sending an uplink signal to the base station through the uplink beam to be used and/or the timing advance information corresponding to the uplink beam to be used.

According to another aspect, an embodiment of the present invention provides a base station, including:

a first receiving module, configured to receive an uplink signal sent by a user equipment UE;

a first determining module, configured to determine, according to the uplink signal received by the first receiving module, an uplink beam to be used by the UE and/or timing advance information corresponding to the uplink beam to be used by the UE;

and a first sending module, configured to send the beam indication information and/or the timing advance information determined by the first determining module to the UE, where the beam indication information is used to indicate an uplink beam to be used by the UE.

According to another aspect, an embodiment of the present invention provides a user equipment, including:

a second sending module, configured to send an uplink signal to a base station;

a second receiving module, configured to receive beam indication information and/or timing advance information sent by a base station;

a second determining module, configured to determine, according to the beam indication information and/or the timing advance information received by the second receiving module, an uplink beam to be used and/or timing advance information corresponding to the uplink beam to be used;

and the second sending module is further configured to send the uplink signal to the base station through the uplink beam to be used and/or the timing advance information corresponding to the uplink beam to be used, which are determined by the second determining module.

The invention provides user equipment, a base station and an information notification method, compared with the prior art, the user equipment sends an uplink signal to the base station, the base station can determine an uplink beam to be used by the user equipment and/or timing advance information corresponding to the uplink beam to be used according to the uplink signal, and sends beam indication information carrying the uplink beam to be used and/or the timing advance information corresponding to the uplink beam to be used to the user equipment, so that the user equipment can send the uplink signal according to the uplink beam and/or the corresponding timing advance information, namely the uplink beam corresponding to the user equipment and/or the timing advance information changed due to the change of the uplink beam which can be determined by the base station in the invention, and the determined uplink beam and/or the corresponding timing advance information can be notified to the user equipment, thereby the user equipment can know new timing advance information.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a flow chart of a method of information notification according to an embodiment of the present invention;

FIG. 2 is an exemplary diagram of a situation where different priority traffic overlaps;

FIG. 3 is an exemplary diagram of overlapping instances of the same priority traffic;

FIG. 4 is an exemplary diagram of fixed size indicating timing advance or adjustment, respectively;

FIG. 5 is an exemplary diagram of the inclusion of timing advance in a MAC CE;

FIG. 6 is an exemplary diagram of a MAC CE including a content indicator;

FIG. 7 is a diagram illustrating an apparatus of a base station according to an embodiment of the present invention;

fig. 8 is a schematic device structure diagram of a ue in an embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative only and should not be construed as limiting the invention.

As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. As used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.

It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

As will be appreciated by those skilled in the art, a "terminal" as used herein includes both devices having a wireless signal receiver, which are devices having only a wireless signal receiver without transmit capability, and devices having receive and transmit hardware, which have devices having receive and transmit hardware capable of two-way communication over a two-way communication link. Such a device may include: a cellular or other communication device having a single line display or a multi-line display or a cellular or other communication device without a multi-line display; PCS (Personal Communications Service), which may combine voice, data processing, facsimile and/or data communication capabilities; a PDA (Personal Digital Assistant) which may include a radio frequency receiver, a pager, internet/intranet access, web browser, notepad, calendar and/or GPS (Global Positioning System) receiver; a conventional laptop and/or palmtop computer or other device having and/or including a radio frequency receiver. As used herein, a "terminal" or "terminal device" may be portable, transportable, installed in a vehicle (aeronautical, maritime, and/or land-based), or situated and/or configured to operate locally and/or in a distributed fashion at any other location(s) on earth and/or in space. As used herein, a "terminal Device" may also be a communication terminal, a web terminal, a music/video playing terminal, such as a PDA, an MID (Mobile Internet Device) and/or a Mobile phone with music/video playing function, or a smart tv, a set-top box, etc.

In a method for notifying time information of a user equipment in LTE (Long Term Evolution) in the prior art, beam indication information and timing advance information need to be considered separately, and extra signaling overhead may be needed to notify the user equipment, resulting in unnecessary signaling overhead. In addition, in the LTE, only one indicated value with a size of 6 bits may not satisfy the situation that the change value of the timing advance is large due to the change of the beam in the beamforming system.

The embodiment of the invention provides a time information notification method, a base station can notify a user equipment of a new timing advance or a timing advance adjustment amount in a beam indication, and can indicate whether a beam changes or not and indicate that beam adjustment values with different sizes exist by combining the beam indication with the base station.

Fig. 1 is a schematic flow chart of information notification according to an embodiment of the present invention.

Step 101, user equipment sends an uplink signal to a base station; 102, a base station receives an uplink signal sent by User Equipment (UE), and determines an uplink beam to be used by the UE and/or timing advance information corresponding to the uplink beam to be used by the UE according to the uplink signal; 103, the base station sends the beam indication information and/or the timing advance information to the UE; step 104, the user equipment receives the beam indication information and/or the timing advance information sent by the base station, and determines the uplink beam to be used and/or the timing advance information corresponding to the uplink beam to be used according to the beam indication information and/or the timing advance information; and 105, the user equipment sends an uplink signal to the base station through the uplink beam to be used and/or the timing advance information corresponding to the uplink beam to be used.

The beam indication information is used for indicating an uplink beam to be used by the UE, and the timing advance information is used for indicating a timing advance corresponding to the uplink beam to be used by the UE.

Further, step 103, the step of the base station sending the beam indication information and/or the timing advance information to the UE, includes at least one of steps 1031 to 1032 (not labeled in the figure):

step 1031, the base station sends the beam indication information and/or the timing advance information to the UE through the downlink control information DCI.

And a content indicator is also set in the DCI, and the content indicator is used for indicating the type of information carried in the DCI.

Wherein the timing advance information includes: timing advance or timing advance adjustment.

Step 1032, the base station sends the beam indication information and/or the timing advance information to the UE through the same MAC CE.

Wherein, the MAC CE is further provided with a content indicator, and/or the content indicator is used for indicating the type of information carried in the MAC CE.

Wherein, the MAC CE includes: the timing advance group identifier of the first preset bit, the beam indication information of the second preset bit, the timing advance adjustment quantity of the third preset bit and the padding bit value of the fourth preset bit, wherein the sum of the first preset bit, the second preset bit, the third preset bit and the fourth preset bit is an integral multiple of the seventh preset bit value, and the timing advance group identifier is used for identifying a corresponding timing advance group; and/or the timing advance group identifier of the first preset bit, the beam indication information of the second preset bit, the timing advance of the fifth preset bit and the padding bit value of the sixth preset bit, wherein the sum of the first preset bit, the second preset bit, the fifth preset bit and the sixth preset bit is an integral multiple of the eighth preset bit value.

The seventh preset bit value and the eighth preset bit value may be the same or different. The invention is not limited in the embodiments.

Further, in step 104, the step of receiving, by the ue, the beam indication information and/or the timing advance information sent by the base station specifically includes: the user equipment receives DCI which is transmitted by the base station and carries the beam indication information and/or the timing advance information, and/or the user equipment receives MAC CE which is transmitted by the base station and carries the beam indication information and/or the timing advance information.

Further, when receiving DCI carrying beam indication information and/or timing advance information sent by a base station, determining an information type carried in the DCI according to a bit number of the received DCI and/or a condition that a preset DCI includes a content indicator, where the condition that the preset DCI format includes the content indicator includes: the content indicator is contained in the preset DCI format, or the content indicator is not contained in the preset DCI format.

Specifically, the step of determining the type of information carried in the DCI according to the condition that the preset DCI includes the content indicator includes:

when the preset DCI format contains a content indicator, determining the type of information carried in the DCI according to the content indicator; and when the content indicator is not contained in the preset DCI format, determining the type of the information carried in the DCI according to the preset DCI format.

Further, when receiving a MAC CE carrying beam indication information and/or timing advance information sent by a base station, determining an information type carried in the MAC CE according to a condition that a preset MAC CE format includes a content indicator, where the condition that the preset MAC CE format includes the content indicator includes: the preset MAC CE format includes a content indicator, or the preset MAC CE format does not include a content indicator.

Specifically, the step of determining the type of information carried in the MAC CE according to the condition that the preset MAC CE format includes the content indicator includes:

when the preset MAC CE format contains a content indicator, determining the type of information carried in the MAC CE according to the content indicator; and when the preset MAC CE format does not contain the content indicator, determining the type of the information carried in the MAC CE according to the preset MAC CE format.

Further, the user equipment acquires the beam indication information and/or the timing advance information according to the type of the carried information.

Further, in step 102, the step of determining, by the base station according to the uplink signal, the uplink beam to be used by the UE and/or the timing advance information corresponding to the uplink beam to be used by the UE includes: determining beam quality information corresponding to each uplink beam according to the uplink signals; and determining an uplink beam to be used by the UE according to the beam quality information corresponding to each uplink beam, and determining timing advance information corresponding to the uplink beam to be used by the UE according to the base station timing reference information.

Wherein the beam quality information includes: the received signal power of the uplink beam of the UE and/or the signal-to-interference ratio of the uplink beam received signal of the UE.

Further, when the UE has a plurality of available uplink beams, the base station records beam quality information and/or timing advance information corresponding to each uplink beam in the plurality of available uplink beams; and/or the presence of a gas in the gas,

when the UE has a plurality of available uplink beams, the base station determines one available uplink beam as a first uplink beam, and records beam quality information and/or timing advance information corresponding to the first uplink beam and relative beam quality information and/or relative timing advance information of each uplink beam in other available uplink beams and the first uplink beam.

Further, when the base station detects that the beam quality information and/or the corresponding timing advance information corresponding to any uplink beam changes, the recorded beam quality information and/or the corresponding timing advance information corresponding to the uplink beam is updated.

Further, the base station determines timing advance information corresponding to the uplink beam to be used according to the timing advance information; the step of sending the uplink signal to the base station through the timing advance information corresponding to the uplink beam to be used includes steps a-b (not marked in the figure):

step a, if the timing advance information is the timing advance, the user equipment determines that the timing advance information corresponding to the uplink wave beam to be used is the timing advance; and sending an uplink signal to the base station by the timing advance corresponding to the uplink beam to be used.

B, if the timing advance information is the timing advance adjustment quantity, the user equipment determines the timing advance corresponding to the uplink wave beam to be used according to the timing advance adjustment quantity; and sending an uplink signal to the base station by the timing advance corresponding to the uplink beam to be used.

Further, step 105 specifically includes: and the user equipment sends an uplink signal to the base station according to a preset time interval or a time interval configured by the base station and through the uplink beam to be used and/or the timing advance corresponding to the uplink beam to be used.

Further, when an uplink signal is sent by a timing advance corresponding to an uplink beam to be used and a previous time unit is overlapped with a next time unit, determining the priority of service data carried in each time unit; and preferentially transmitting the service data borne on the time unit with the highest service data priority or preferentially transmitting the service data borne on the previous time unit.

Wherein the time unit comprises at least one of: a symbol; a symbol group; a time slot; a time slot group; a small time slot; a group of mini-slots; a wireless frame; a group of radio frames; a system frame; a set of system frames.

Compared with the prior art, the method for notifying the information is provided in the embodiment of the invention, wherein the user equipment sends the uplink signal to the base station, and the base station can determine the uplink beam to be used by the user equipment and/or the timing advance information corresponding to the uplink beam to be used according to the uplink signal and send the beam indication information carrying the uplink beam to be used and/or the timing advance information corresponding to the uplink beam to be used to the user equipment, so that the user equipment can send the uplink signal according to the uplink beam and/or the corresponding timing advance information, that is, the uplink beam corresponding to the user equipment and/or the timing advance information changed due to the change of the uplink beam which can be determined by the base station in the embodiment of the invention can notify the user equipment of the determined uplink beam and/or the corresponding timing advance information, and therefore, the user equipment can know new timing advance information.

Example one

In the information notification method provided by the present invention, in a beam-forming communication system, a UE in a connected state may send an Uplink Signal (e.g., an SRS (sounding Reference Signal), or a DM-RS (demodulation Reference Signal) in a PUCCH (Physical Uplink Control Channel) or a PUSCH (Physical Uplink Shared Channel), or directly a PUCCH or PUSCH data Signal) to a base station, so that the base station may obtain the quality of an Uplink beam of the UE (e.g., the received Signal power of each Uplink beam, or the interference-to-noise ratio level of each Uplink beam received Signal) from detecting the Uplink Signal to determine whether the beam currently used by the UE is a better beam, and if the base station finds that the UE has a better Uplink beam quality, the base station may notify the UE of converting the Uplink beam to be used. However, in this case, a great change in timing advance may be caused by a beam change, and by detecting an uplink signal from the UE, the base station may obtain the timing advance corresponding to the uplink beam, and notify the UE of the timing advance adjustment amount or the new timing advance together with the beam indication information, which contributes to more accurate uplink signal transmission by the UE.

The invention mainly comprises a first step to a third step (which are not marked in the figure):

the method comprises the following steps: the UE sends the uplink signal through configured uplink resources (including time-frequency resources, and/or demodulation reference signal configuration, and/or sounding reference signal configuration, etc.) of the base station.

Step two: the base station measures the received signal power of the uplink beam of the UE or the signal-to-interference-and-noise ratio of the uplink beam received signal through the received uplink signal from the UE, and determines the uplink beam which the UE should use.

Meanwhile, the timing advance of the corresponding wave beam of the UE is determined by referring to the timing reference measured by the base station; then the base station informs the user of the new beam indication information and the timing advance information through a downlink channel (such as a downlink control channel, a downlink shared channel and a downlink broadcast channel);

1. the base station may notify the ue by putting beam index information (e.g., SRI (Sounding Reference Signal resource indicator)) and timing advance information (e.g., N-bit timing advance or timing advance adjustment) into DCI.

2. The base station may form a MAC CE (Medium Access Control element) by combining the beam index information (e.g., SRI) and the timing advance information (e.g., N-bit timing advance or timing advance adjustment) and transmit the MAC CE to the ue.

In the notification information sent to the user equipment, the base station may also reserve a content indicator of M bits in the DCI or MAC CE for notifying the user equipment, corresponding to the information type contained in the DCI or MAC CE. If the content indicates Fu Zhan bit, "0" indicates that the DCI or MAC CE carries a timing advance adjustment amount with a size of 6 bits; "1" characterizes the timing advance of 11 bits carried in the DCI or MAC CE.

Step three: and the UE receives the beam indication information sent by the base station, and reads new beam index information and/or timing advance information from the beam indication information.

The UE converts the beam index information into an uplink beam indicated by the base station according to the indicated beam index information; and applying a new uplink beam according to a preset time interval or a time interval configured by the base station, for example, the system presets to use the new beam for uplink data transmission after T1 subframes.

The UE determines a new TA value according to the indicated TA (Timing Advance) adjusting value or the TA value so as to send the uplink signal; applying a new timing advance according to a preset time interval or a time interval configured by the base station, for example, using a new timing advance value to transmit uplink data after T2 subframes are preset by a system; alternatively, it may be pre-configured to apply a new timing advance value at the same time interval as the new uplink beam is applied, that is, it is pre-configured to perform uplink signal transmission using the new timing advance value after T1 subframes.

In addition, when the determined new timing advance is applied, and a previous subframe and a next subframe have an overlapping portion, the UE determines which subframe has data transmission priority according to the priority of data carried by the two overlapping subframes.

Such as: 1. when the latter sub-frame is a higher priority service than the former sub-frame, as shown in fig. 2, for example, the latter sub-frame is to transmit the service data of the high reliability low latency URLLC, and the former sub-frame is to transmit the normal eMBB data, the UE may perform a) and/or b) when the latter sub-frame overlaps with the former sub-frame:

a) Preferentially ensuring the complete URLLC service transmission;

b) And preferentially ensuring that the complete service transmission of the previous subframe is completed.

2. When the latter subframe is a service with the same or similar priority as the former subframe or a service with a lower priority, as shown in fig. 3, if two subframes before and after the transmission are service data of the eMBB, the UE may preferentially ensure that the service transmission of the former subframe is completed when the latter subframe overlaps with the former subframe.

Here, the subframe is taken as an example of a time unit, and may be replaced by other time units, such as a symbol (symbol), a slot (slot), a mini slot (mini slot), a radio frame (radio frame), and the like, and a combination of one or more of the above time units.

Example two

This embodiment will describe that the beam used by the user and the possible TA change are notified by constructing a MAC CE or DCI (Downlink Control Information) format. In a beamforming communication system, a UE in a connected state may send an uplink signal (e.g., an SRS, or a DM-RS in a PUCCH or a PUSCH, or a PUCCH or a PUSCH data signal directly) to a base station, so that the base station may obtain quality of an uplink beam of the UE (e.g., a received signal power of each uplink beam, or a signal-to-interference-and-noise ratio level of each uplink beam received signal) by detecting the uplink signal to determine whether a beam currently used by the UE is a better beam, and if the base station finds that the UE has better quality of other uplink beams, the base station may notify the UE of the uplink beam to be used for switching. However, in this case, the beam change may cause a large change in timing advance, and by detecting an uplink signal from the UE, the base station may obtain the timing advance corresponding to the uplink beam, and notify the UE of the timing advance adjustment amount or the new timing advance together with the beam indication information, which contributes to more accurate uplink signal transmission by the UE.

The embodiment of the invention mainly comprises the following steps:

Step two: the base station measures the received signal power of the uplink beam of the UE or the signal-to-interference-and-noise ratio of the uplink beam received signal through the received uplink signal from the UE, and determines the uplink beam which the UE should use. Meanwhile, the timing advance of the corresponding wave beam of the UE is determined by referring to the timing reference measured by the base station; the base station then informs the user of the new beam indication information and the timing advance information via a downlink channel (e.g., downlink control channel, downlink shared channel, downlink broadcast channel).

In a multi-beam system, a UE may have multiple uplink transmission beams, and therefore a base station may need to maintain and record beam quality and timing advance values of each beam for multiple different uplink beams, which may be:

1. the base station independently maintains and records the beam quality and/or the timing advance of each uplink beam of the UE; if the UE has 3 uplink beams, at the base station side, the base station records the beam quality and/or the timing advance of the three beams, and the updated beam quality and/or the timing advance obtained after the next new uplink signal measurement is available replaces the old beam quality and/or the old timing advance.

2. The base station carries out relative maintenance recording on the beam quality and/or the timing advance of the uplink beam of the UE; if the UE has 3 uplink beams, the beams are 1,2,3 respectively; on the base station side, the base station selects and records the beam quality and/or the timing advance of one of the beams (such as beam 1), wherein the selection can be based on randomly selecting one of the beams with equal probability, or selecting according to the beam quality, such as selecting the beam with the highest quality or selecting the beam with the lowest quality to record; and recording the relative beam quality values and/or relative timing advance values of the beams 2 and 3 and the beam 1, replacing the beam quality and/or timing advance of the old beam 1 by the updated beam quality and/or timing advance measurement of the beam 1 obtained after the next uplink signal measurement, and updating the relative beam quality and/or relative timing advance values of the beams 2 and 3 relative to the beam 1 to replace the old relative beam quality and/or relative timing advance relative to the beam 1.

In addition, the manner of notifying the user equipment by the base station may be:

DCI; the user equipment may be notified by putting the beam index information and/or the timing advance information in DCI.

MAC CE; the beam index information and/or the timing advance information may be transmitted to the user equipment by being placed in the same MAC CE.

Wherein,

a) Beam index information, i.e., a resource index that can identify an uplink beam, such as SRI.

b) Timing advance information, i.e. N which can identify UE uplink transmissions _ta Bit timing advance, or N _ta-adjust Timing advance adjustment of bits relative to old timing advance, as similarly in LTE systems, the timing advance is the full N _ta =11 bits, the UE may directly convert the 11 bits into the timing advance of uplink transmission; or N may be used _ta-adjust If the timing advance adjustment amount is =6 bits, the UE needs to calculate a new timing advance based on the old timing advance.

For transmission using downlink control information, the corresponding DCI format may be:

the content indicator (english full: content indication) may be 1 or 2 bits. This content indicator represents the meaning:

-if the size of the content indicator is 1 bit:

when the content indicator is "0", it is characterized that the DCI carries the beam indication information and the timing advance (or timing advance adjustment); the beam indication information identifies that the UE uses an uplink beam different from a previous uplink beam.

When the content indicator is "1", it is characterized that the DCI carries the timing advance (or timing advance adjustment) and does not carry the beam indication information; wherein not carrying the beam indication information indicates that the UE uses the same uplink beam as the previous uplink beam.

Or,

when the content indicator is "0", it is characterized that the DCI carries the beam indication information and the timing advance; the beam indication information identifies an uplink beam that the UE should use, which may be the same as or different from the previously used uplink beam.

When the content indicator is "1", it is characterized that the DCI carries the beam indication information and the timing advance adjustment amount; the beam indication information identifies an uplink beam that the UE should use, and may be the same as or different from the previously used uplink beam.

Or,

if the Size _ DCI is less than or equal to the preset threshold, when the content indicator is "0", it represents that the DCI carries the timing advance adjustment amount; when the content indicator is '1', indicating that the DCI carries the timing advance; in both cases, the DCI does not carry the beam indication information, i.e., the UE is characterized to use the same uplink beam as the previous uplink beam.

Wherein, size _ DCI represents the Size of DCI received by the UE, such as the number of bits after CRC is removed or the number of bits including CRC.

If Size _ DCI is greater than a preset threshold, when the content indicator is "0", it represents that the DCI carries the beam indication information and the timing advance adjustment amount; when the content indicator is '1', the beam indication information and the timing advance are carried by the DCI; in both cases, the DCI has beam indication information indicating that the UE uses an uplink beam different from the previous uplink beam.

It should be noted that the meanings of "0" and "1" can be interchanged. The present invention is not limited to the embodiments.

If the size of the content indicator is 2 bits (as shown in table one):

when the content indicator is "00", it is a timing advance adjustment amount that the DCI is carried; wherein the beam indication information is not carried to indicate that the UE uses the same uplink beam as the previous uplink beam.

When the content indicator is "01", it is characterized that the DCI carries the timing advance; wherein the beam indication information is not carried to indicate that the UE uses the same uplink beam as the previous uplink beam.

When the content indicator is "10", it is characterized that the DCI carries the beam indication information and the timing advance adjustment amount; the beam indication information identifies that the UE uses an uplink beam different from a previous uplink beam.

When the content indicator is "11", it is characterized that the DCI carries a beam indication and a timing advance; the beam indication information identifies that the UE uses an uplink beam different from a previous uplink beam.

It should be noted that the meanings of "00", "01", "10" and "11" can be interchanged. The present invention is not limited to the embodiments.

Table one bit content indication Fu Hanyi example

Content indication Fu Quzhi	Meaning (content carried by the DCI)
		00	No beam indication information, timing advance adjustment
01	No beam indication information, carrying timing advance
		10	There is beam indication information and timing advance adjustment
11	There is beam indication information and timing advance

Specifically, when the timing advance (or adjustment) carried in the DCI is of a fixed size (e.g., fixed to N _ ta bits), the UE may perform different processing on the received timing advance (or adjustment) according to different content indicators, e.g., according to different content indicators

-if the size of the content indicator is 1bit, then:

when the content indicator is "0", it is characterized that the DCI carries the beam indication information and the timing advance; at this time, N _ ta represents the complete timing advance, and the UE reads the complete N _ ta bit to obtain a new timing advance; the beam indication information identifies an uplink beam that the UE should use, and may be the same as or different from the previously used uplink beam.

When the content indicator is "1", it is characterized that the DCI carries the beam indication information and the timing advance adjustment amount; at the moment, the high or low N _ ta-adjust bit of the N _ ta represents the complete timing advance, the UE reads the high or low N _ ta-adjust bit to obtain a new timing advance adjustment amount, and calculates the new timing advance; the beam indication information identifies an uplink beam that the UE should use, which may be the same as or different from the uplink beam used before; as illustrated in fig. 4, the padding bits may be all 0 bits or all 1 bits or any bit.

Or,

when the Size _ dci is less than or equal to the preset threshold, the content indicator may also be used to indicate different processing of the received timing advance information by the UE, similar to the above processing manner, which is not described in detail; the DCI does not carry beam indication information, and is used to characterize the UE using the same uplink beam as the previous uplink beam.

When the Size _ dci is greater than a preset threshold, the content indicator may also be used to indicate different processing of the received timing advance content by the UE, similar to the previous method, and the processing method is similar to the above and is not described again; the DCI carries beam indication information indicating that the UE uses an uplink beam different from a previous uplink beam.

It should be noted that the meanings of "0" and "1" can be interchanged. And will not be described in detail herein.

A similar configuration can also be adopted if the size of the content indicator is 2 bits:

when the content indicator is "00", what characterizes the DCI carries is a timing advance adjustment value; the UE reads the high or low N _ ta-adjust bit in the N _ ta bit to obtain a new timing advance adjusting value; the UE is characterized to use the uplink wave beam which is the same as the previous uplink wave beam without carrying the wave beam indication information;

when the content indicator is "01", it is the timing advance value that characterizes this DCI carries; the UE reads the complete N _ ta bit to obtain a new timing advance value; not carrying the beam indication information to characterize that the UE uses the uplink beam which is the same as the previous uplink beam;

when the content indicator is "10", it is characterized that the DCI carries the beam indication information and the timing advance adjustment value; the UE reads the high or low N _ ta-adjust bit in the N _ ta bit to obtain a new timing advance adjusting value; the beam indication information identifies that the UE uses an uplink beam different from a previous uplink beam;

when the content indicator is "11", it is characterized that the DCI carries the beam indication information and the timing advance value; the UE reads the complete N _ ta bit to obtain a new timing advance value; the beam indication information identifies that the UE uses an uplink beam different from a previous uplink beam.

It should be noted that the meanings of the above-mentioned "00", "01", "10" and "11" can be interchanged.

The beam indication (content indication) may be N _ bi bits, which indicates the uplink beam index information the base station indicates to the UE to use;

and/or

-the timing advance adjustment is N _ta-adjust A bit indicating an offset to the old timing advance (TA _ old) to be used by the base station to the UE; e.g. TA _ new＝f(TA_old，TA_adjust)。

And/or

-timing advance of N _ta Bit, the base station indicated by this content indicates a new timing advance (TA _ new) to be used by the UE;

in particular, when no content indicator is included in the DCI design, a fixed format of beam indication and/or timing advance information (timing advance value or timing advance adjustment value) is selected to inform the user equipment.

For the embodiment of the present invention, when the MAC CE is used for transmission, the corresponding MAC CE format may be:

the beam and timing advance indication command MAC CE is acknowledged by the corresponding Logical Channel Identity (LCID) in the MAC PDU subheader. As when LCID =01011, as shown in table two below, the beam and timing advance indication command is characterized; alternatively, the index of the timing advance command in LTE may be extended, i.e. the LCID of the timing advance command in LTE is reused to identify the beam and the timing advance indication command.

Table 2 example table of logical channel identification values for downlink shared channels

Logical channel identification value	Logical channel meaning
		……	……
01011	Beam and timing advance indication command
		11011	Activation/deactivation
11100	UE contention resolution identity
		……	……

For the embodiment of the present invention, the MAC CE has a fixed size and contains an integer multiple of 8 bits, i.e. Octet alignment (english full: aligned with Octet).

Mode 1: MAC CE is represented by N _tagid Timing advance Group identification (English full name: TA Group ID), beam indication information N _ bi bit, timing advance adjustment amount TAcommand of Nta-adjust bit, N _ cause = Ntag + N _ bi + Nta-adjust + N _ padding bit; wherein, N _ padding bit is to fill up the number of bits of the MAC CE so that it can satisfy an integer multiple of 8 bits,

represents the smallest integer greater than x; the padding bit may be all 0 bits or all 1 bits.

Mode 2: MAC CE is composed of N _tagid Timing advance group identification of bit, beam indication information N _ bi bit, N _ta Timing advance of the bit. N _ mcce = N _tagid +N_bi+N _ta +N_paddingbit；

Wherein, N _ padding bit is to fill up the number of bits of the MAC CE to satisfy the integer multiple of 8 bits,

represents the smallest integer greater than x; the padding bit may be all 0 bits or may be a padding bitIs all 1 bit; as shown in FIG. 5, e.g. N _tagid Timing advance group id of =2bit, beam indication information N _ bi =12 bits, N _ta Timing advance of =11 bits, then

Then N _ mcce =32.

For the embodiment of the present invention, for the same UE, there may be multiple serving cells, for example, in a scenario of carrier aggregation CA, the TAs of several carriers (or cells) may be the same at this time to form a TA group, and may share the same TA value, and different TA groups may have different TA values; different carriers may also be assigned with different TA values, and different cells may assign different TA values to the UE.

For the embodiment of the present invention, in the notification information for the user equipment, a content indicator with M bits may also be reserved in the MAC CE to notify the information type contained in the corresponding MAC CE, as shown in fig. 6, the content indicator 1bit, "0" represents the timing advance adjustment amount of the size of the N _ ta-adjust bit carried in the MAC CE, and "1" represents the timing advance amount of the size of the N _ ta bit carried in the MAC CE; meanwhile, the UE can read the high or low N _ ta-adjust bit in the timing information bit to obtain the timing advance adjustment amount or read the timing advance of the complete N _ ta bit according to different content indicators.

It should be noted that the information fields (field) in the MAC CE in fig. 6 can be exchanged. The embodiment of the invention is not described in detail.

Step three: and the UE receives the beam indication information and the timing advance information sent by the base station, and reads new beam index information and/or timing advance information from the beam indication information and the timing advance information.

1. Converting the beam index information into an uplink beam indicated by the base station according to the indicated beam index information; and applying a new uplink beam according to a preset time interval or a time interval configured by the base station, for example, the system presets to use the new beam for uplink data transmission after T1 subframes.

2. Determining a new TA value according to the indicated TA adjusting value or the TA value so as to transmit the uplink signal; applying a new timing advance value according to a preset time interval or a time interval configured by a base station, for example, using the new timing advance value to perform uplink data transmission after T2 subframes are preset by a system; alternatively, it may be preconfigured to apply a new timing advance value at the same time interval as the new uplink beam is applied, i.e. to use the new timing advance value for uplink signal transmission after T1 subframes.

In addition, when the determined new timing advance is applied, and a previous subframe and a subsequent subframe have an overlapping portion, the UE determines which subframe to preferentially complete transmission according to the priority of data carried by the two subframes with overlapping portions, for example:

1. when the latter sub-frame is a service with higher priority, as shown in fig. 2, for example, the latter sub-frame is to transmit URLLC service data with high reliability and low latency, and the former sub-frame is to transmit normal eMBB data, the UE may be configured to perform the above-mentioned overlapping between the latter sub-frame and the former sub-frame

a) Preferentially ensuring the complete URLLC service transmission completion;

2. When the latter subframe is a service with the same or similar priority or a service with a lower priority, as shown in fig. 3, if both the former and latter subframes are transmitting service data of the eMBB, the UE may preferentially ensure that the service transmission of the former subframe is completed when the latter subframe overlaps with the former subframe.

It should be noted that the subframe is taken as an example of a time unit, and may be replaced by other time units, such as a symbol (symbol), a symbol group, a slot (slot), a slot group, a mini slot (slot), a mini slot group, a radio frame (radio frame), a radio frame group, a system frame group, and the like, and one or more combinations of the above time units.

An embodiment of the present invention provides a base station, as shown in fig. 7, including: a first receiving module 71, a first determining module 72, a first sending module 73, wherein,

the first receiving module 71 is configured to receive an uplink signal sent by a user equipment UE.

The first determining module 72 is configured to determine, according to the uplink signal received by the first receiving module 71, an uplink beam to be used by the UE and/or timing advance information corresponding to the uplink beam to be used by the UE.

A first sending module 73, configured to send the beam indication information and/or the timing advance information determined by the first determining module 72 to the UE.

Compared with the prior art, the base station provided by the embodiment of the invention sends the uplink signal to the base station, and the base station can determine the uplink beam to be used by the user equipment and/or the timing advance information corresponding to the uplink beam to be used according to the uplink signal, and send the beam indication information carrying the uplink beam to be used and/or the timing advance information corresponding to the uplink beam to be used to the user equipment, so that the user equipment can send the uplink signal according to the uplink beam and/or the corresponding timing advance information, that is, the base station can determine the uplink beam corresponding to the user equipment and/or the timing advance information changing due to the change of the uplink beam, and can inform the user equipment of the determined uplink beam and/or the corresponding timing advance information, thereby enabling the user equipment to know new timing advance information.

The base station provided in the embodiment of the present invention may implement the method embodiment provided above, and for the specific function implementation, reference is made to the description in the method embodiment, which is not described herein again.

An embodiment of the present invention provides a user equipment, as shown in fig. 8, including: a second sending module 81, a second receiving module 82, a second determining module 83, wherein,

and a second sending module 81, configured to send an uplink signal to the base station.

And a second receiving module 82, configured to receive the beam indication information and/or the timing advance information sent by the base station.

The second determining module 83 is configured to determine, according to the beam indication information and/or the timing advance information received by the second receiving module 82, an uplink beam to be used and/or timing advance information corresponding to the uplink beam to be used.

The second sending module 81 is further configured to send an uplink signal to the base station through the uplink beam to be used and/or the timing advance information corresponding to the uplink beam to be used, which is determined by the second determining module 83.

Compared with the prior art, the user equipment provided by the embodiment of the invention sends an uplink signal to the base station, and the base station can determine the uplink beam to be used by the user equipment and/or the timing advance information corresponding to the uplink beam to be used according to the uplink signal and send the beam indication information carrying the uplink beam to be used and/or the timing advance information corresponding to the uplink beam to be used to the user equipment, so that the user equipment can send the uplink signal according to the uplink beam and/or the corresponding timing advance information, that is, the base station can determine the uplink beam corresponding to the user equipment and/or the timing advance information changing due to the change of the uplink beam, and can inform the user equipment of the determined uplink beam and/or the corresponding timing advance information, thereby enabling the user equipment to know new timing advance information.

The user equipment provided by the embodiment of the present invention can implement the method embodiment provided above, and for specific function implementation, reference is made to the description in the method embodiment, which is not described herein again.

Those skilled in the art will appreciate that the present invention includes apparatus directed to performing one or more of the operations described in the present application. These devices may be specially designed and manufactured for the required purposes, or they may comprise known devices in general-purpose computers. These devices have stored therein computer programs that are selectively activated or reconfigured. Such a computer program may be stored in a device (e.g., computer) readable medium, including, but not limited to, any type of disk including floppy disks, hard disks, optical disks, CD-ROMs, and magnetic-optical disks, ROMs (Read-Only memories), RAMs (Random Access memories), EPROMs (Erasable Programmable Read-Only memories), EEPROMs (Electrically Erasable Programmable Read-Only memories), flash memories, magnetic cards, or optical cards, or any type of media suitable for storing electronic instructions, and each coupled to a bus. That is, a readable medium includes any medium that stores or transmits information in a form readable by a device (e.g., a computer).

It will be understood by those within the art that each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented by computer program instructions. Those skilled in the art will appreciate that the computer program instructions may be implemented by a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, implement the features specified in the block or blocks of the block diagrams and/or flowchart illustrations of the present disclosure.

Those of skill in the art will appreciate that various operations, methods, steps in the processes, acts, or solutions discussed in the present application may be alternated, modified, combined, or deleted. Further, various operations, methods, steps in the flows, which have been discussed in the present application, may be interchanged, modified, rearranged, decomposed, combined, or eliminated. Further, steps, measures, schemes in the various operations, methods, procedures disclosed in the prior art and the present invention can also be alternated, changed, rearranged, decomposed, combined, or deleted.

The foregoing is only a partial embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A method performed by a user equipment in a communication system, comprising:

receiving beam indication information and/or timing advance information sent by the base station;

if the beam indicated by the beam indication information is different from the beam indicated by the base station last time, applying the beam indicated by the beam indication information to send an uplink signal to the base station; and/or the presence of a gas in the gas,

and if the timing advance indicated by the timing advance information is different from the timing advance indicated by the base station last time, applying the timing advance indicated by the timing advance information and sending an uplink signal to the base station.

2. The method of claim 1, wherein the timing advance information comprises: timing advance or timing advance adjustment;

and if the timing advance information is the timing advance adjustment quantity, determining the timing advance quantity indicated by the timing advance information according to the timing advance adjustment quantity.

3. The method of claim 1, wherein if the beam indicated by the beam indication information is different from the beam indicated last time by the base station, the beam indicated by the beam indication information is applied to transmit an uplink signal to the base station according to a preset time interval or a time interval configured by the base station; and/or the presence of a gas in the atmosphere,

and if the timing advance indicated by the timing advance information is different from the timing advance indicated by the base station at the last time, applying the timing advance indicated by the timing advance information according to a preset time interval or a time interval configured by the base station, and sending an uplink signal to the base station.

4. The method of claim 3, further comprising:

when the beam indicated by the beam indication information and/or the timing advance indicated by the timing advance information are/is applied, an uplink signal is sent to the base station, and the previous time unit and the next time unit are overlapped, the priority of the service data carried in each time unit is determined; and preferentially transmitting the service data borne on the time unit with the highest service data priority, or preferentially transmitting the service data borne on the previous time unit.

5. The method of claim 4, wherein the time unit comprises at least one of: a symbol; a symbol group; a time slot; a time slot group; a small time slot; a group of mini-slots; a wireless frame; a group of radio frames; a system frame; a set of system frames.

6. The method according to claim 1, wherein the step of receiving the beam indication information and/or the timing advance information transmitted by the base station comprises:

receiving DCI which is sent by the base station and carries the beam indication information and/or the timing advance information; and/or

And receiving the MAC CE which is sent by the base station and carries the beam indication information and/or the timing advance information.

7. The method of claim 6, further comprising:

when receiving the DCI carrying the beam indication information and/or the timing advance information and transmitted by the base station, determining the type of information carried in the DCI according to the number of bits of the received DCI and/or a condition that a preset DCI includes a content indicator, where the condition that the preset DCI format includes the content indicator includes: the content indicator is contained in a preset DCI format, or the content indicator is not contained in the preset DCI format.

8. The method of claim 7, wherein the step of determining the type of information carried in the DCI according to the content indicator included in a predetermined DCI comprises:

when the content indicator is contained in the preset DCI format, determining the type of information carried in the DCI according to the content indicator;

and when the content indicator is not contained in the preset DCI format, determining the type of the information carried in the DCI according to the preset DCI format.

9. The method of claim 6, further comprising:

when receiving the MAC CE carrying the beam indication information and/or the timing advance information and transmitted by the base station, determining an information type carried in the MAC CE according to a condition that a preset MAC CE format includes a content indicator, where the condition that the preset MAC CE format includes the content indicator includes: the content indicator is contained in a preset MAC CE format, or the content indicator is not contained in the preset MAC CE format.

10. The method according to claim 9, wherein the step of determining the type of information carried in the MAC CE according to the content indicator included in the preset MAC CE format comprises:

when the preset MAC CE format contains the content indicator, determining the type of information carried in the MAC CE according to the content indicator;

and when the preset MAC CE format does not contain the content indicator, determining the type of the information carried in the MAC CE according to the preset MAC CE format.

11. The method according to any one of claims 7-10, further comprising:

and acquiring the beam indication information and/or the timing advance information according to the type of the carried information.

12. A method performed by a base station in a communication system, comprising:

determining an uplink beam to be used by User Equipment (UE) and/or timing advance information corresponding to the uplink beam to be used by the UE;

sending beam indication information and/or the timing advance information to the UE, wherein the beam indication information is used for indicating an uplink beam to be used by the UE;

receiving an uplink signal transmitted by the UE by applying the beam indicated by the beam indication information when the beam indicated by the beam indication information is different from the beam indicated by the base station last time; and/or the presence of a gas in the gas,

and receiving an uplink signal transmitted by the UE by applying the timing advance indicated by the timing advance information under the condition that the timing advance indicated by the timing advance information is different from the timing advance indicated by the base station at the last time.

13. The method according to claim 12, wherein the step of transmitting beam indication information and/or timing advance information to the UE comprises at least one of:

sending the beam indication information and/or the timing advance information to the UE through Downlink Control Information (DCI);

the beam indication information and/or the timing advance information are/is sent to the UE through the same medium access control unit (MAC CE);

wherein the timing advance information comprises: timing advance or timing advance adjustment.

14. The method according to claim 13, wherein the MAC CE comprises:

a timing advance group identifier of a first preset bit, beam indication information of a second preset bit, a timing advance adjustment amount of a third preset bit, and a padding bit value of a fourth preset bit, where a sum of the first preset bit, the second preset bit, the third preset bit, and the fourth preset bit is an integer multiple of a seventh preset bit value, and the timing advance group identifier is used to identify a corresponding timing advance group; and/or the presence of a gas in the gas,

the antenna comprises a timing advance group identifier of a first preset bit, beam indication information of a second preset bit, a timing advance of a fifth preset bit and a padding bit value of a sixth preset bit, wherein the sum of the first preset bit, the second preset bit, the fifth preset bit and the sixth preset bit is an integer multiple of an eighth preset bit value.

15. The method according to claim 13, wherein a content indicator is further configured in the MAC CE, and the content indicator is used for indicating a type of information carried in the MAC CE; and/or a content indicator is also set in the DCI, and the content indicator is used for indicating the type of information carried in the DCI.

16. The method according to claim 12, wherein the step of determining the uplink beam to be used by the UE and/or the timing advance information corresponding to the uplink beam to be used by the UE according to the uplink signal comprises:

according to the uplink signals, determining beam quality information corresponding to each uplink beam, wherein the beam quality information comprises: the received signal power of the uplink beam of the UE and/or the signal-to-interference ratio of the uplink beam received signal of the UE;

and determining the uplink beam to be used by the UE according to the beam quality information corresponding to each uplink beam, and determining the timing advance information corresponding to the uplink beam to be used by the UE according to the base station timing reference information.

17. The method according to any one of claims 12-16, further comprising:

when the UE has a plurality of available uplink beams, the base station records beam quality information and/or timing advance information respectively corresponding to each uplink beam in the plurality of available uplink beams; and/or the presence of a gas in the atmosphere,

18. The method of claim 17, further comprising:

and when the base station detects that the beam quality information and/or the corresponding timing advance information corresponding to any uplink beam changes, updating the recorded beam quality information and/or the corresponding timing advance information corresponding to the uplink beam.

19. A base station, comprising:

a transceiver; and

a processor coupled to the transceiver and configured to perform the method of any of claims 12-18.

20. A user device, comprising:

a transceiver; and

a processor coupled to the transceiver and configured to perform the method of any of claims 1-11.